Illuminating device

Abstract

To provide an illuminating device that can appropriately circulate air.SOLUTION: An illuminating device 11 comprises a lighting device 17, a fan 19, an anemometer 20, and a control device 22. The lighting device 17 lights a light source 18. The fan 19 circulates air. The anemometer 20 measures the wind velocity of the air circulated by the fan 19. The control device 22 controls the rotation of the fan 19 on the basis of the wind velocity of the air measured by the anemometer 20.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE The present invention relates to a lighting device. [Background technology]

[0002] 2. Description of the Related Art A lighting device that provides illumination to a room and circulates air within the room is known. The rotation speed of the fan can be set to one of several levels, such as low, medium, and high.

[0003] In such lighting devices, it is desirable to be able to properly circulate air so that the actual air flow created by the fan does not cause stagnation of air. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-56036 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a lighting device that can properly circulate air. [Means for solving the problem]

[0006] An illumination device according to an embodiment includes a lighting device, a fan, an anemometer, and a control device. The lighting device turns on a light source. The fan circulates air. The anemometer measures the wind speed of the air circulated by the fan. The control device controls the rotation of the fan based on the wind speed of the air measured by the anemometer. Effect of the Invention

[0007] According to the embodiment, it is expected that air circulation can be performed appropriately. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a configuration diagram of a lighting system including a plurality of lighting devices according to an embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a schematic cross-sectional view of the above lighting device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment will be described with reference to the drawings.

[0010] Fig. 1 shows a lighting system 10. The lighting system 10 includes a plurality of lighting devices 11. The plurality of lighting devices 11 are installed at predetermined intervals on the ceiling surface of a room 12 or the like, and have a lighting function for illuminating a room 13, which is a space within the room 12, as well as an air circulation function for circulating air within the room 13. An air conditioner is installed on the ceiling surface or walls of the room 12, and cooled or heated air is blown out from the air conditioner into the room 13, or an air conditioning opening is provided on the ceiling surface of the room 12, and cooled or heated air or fresh air to be replaced for ventilation is blown out from the air conditioning opening into the room 13.

[0011] The lighting device 11 includes a terminal block 16, a lighting device 17, a light source (lighting light source) 18, a fan 19, an anemometer 20, a communication unit 21, and a control device 22.

[0012] The terminal block 16 is electrically connected to a power supply line 24 that supplies power from an external AC power supply 23 .

[0013] The lighting device 17 receives power from the terminal block 16, converts the received power into a predetermined power, and supplies it to the light source 18, the fan 19, the control device 22, and through the control device 22 to the anemometer 20 and the communication unit 21. The lighting device 17 supplies lighting power to the light source 18, rotational power to the fan 19, and operating power to the control device 22 and the communication unit 21.

[0014] The light source 18 illuminates the room 13 by emitting light, and is constituted by, for example, a light emitting element such as an LED or a lamp.

[0015] The fan 19 rotates when rotational power is supplied from the lighting device 17, drawing in air from the room 13 and blowing it out, thereby circulating the air within the room 13.

[0016] The anemometer 20 is powered by the operating power supplied from the lighting device 17 and measures the wind speed of the air circulated by the fan 19. The anemometer 20 measures the air flow speed on the suction side of the fan 19 or the air flow speed on the blowing side.

[0017] The communication unit 21 supports wireless communication using a communication method standardized by, for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark), and wired communication using a communication cable such as a LAN cable. The communication unit 21 is capable of mutual communication with other lighting devices 11, and is also capable of mutual communication with external terminals 25 such as remote controls, smartphones, tablets, and personal computers.

[0018] The control device 22 operates by receiving operating power from the lighting device 17. The control device 22 controls the driving of the lighting device 17, and controls the lighting and dimming of the light source 18. The control device 22 communicates with other lighting devices 11 and an external terminal 25 via the communication unit 21, and transmits and receives information to and from each other.

[0019] The control device 22 acquires the wind speed value measured by the anemometer 20, compares the acquired measured wind speed value with a set wind speed value, and controls the rotation of the fan 19 to increase or decrease so that the measured wind speed value becomes the set wind speed value. An initial value for the set wind speed value is set in advance, and the set wind speed value can be arbitrarily changed from the initial value by the external terminal 25, and the corresponding set wind speed value is automatically set by acquiring wind speed information from the other lighting device 11 in, for example, a linked mode in which the lighting device 11 is linked with the other lighting device 11.

[0020] The control device 22 controls the lighting device 17 so that the lighting timing, at which the lighting device 17 supplies lighting power to the light source 18 to light up the light source 18 in the off state, and the start timing, at which the lighting device 17 supplies operating power to the fan 19 to start up the fan 19 in the stopped state, are different. For example, the fan 19 is started after the light source 18 is turned on. In this case, the fan 19 to be started is first rotated at a lower number of rotations or a set rotation speed, for example, a minimum number of rotations or a rotation speed, and then the number of rotations or the rotation speed is increased stepwise or continuously to the set number of rotations or the set rotation speed. The set number of rotations or the set rotation speed is a value corresponding to the set wind speed value. The start timing and the lighting timing may be made different by turning on the light source 18 after starting the fan 19.

[0021] 2 shows an example of a specific structure of the lighting device 11. The lighting device 11 is, for example, a long base light, and is a ceiling recessed lighting device that is recessed into the ceiling surface. The lighting device 11 may be of another type, such as a square shape, or may be a direct-mount lighting device that is directly attached to the ceiling surface.

[0022] The lighting device 11 includes a housing 30 that serves both as an appliance body and a reflector, and a light source unit 31 that is detachably attached to the housing 30.

[0023] The housing 30 is embedded in a recessed opening in the ceiling surface and attached to a hanging bolt protruding from a ceiling structure. The housing 30 has a ceiling mounting structure in the center of the short side direction intersecting with the long side direction, and has a main body (not shown) to which the light source unit 31 is detachably attached, and reflective surface portions 32 that are inclined and expand downward on both sides of the main body.

[0024] The terminal block 16, the lighting device 17, the communication section 21, and the control device 22 are arranged in the main body of the housing 30. The lighting device 17, the communication section 21, and the control device 22 may be arranged on the light source unit 31 side.

[0025] The light source unit 31 includes a chassis, a light source 18 arranged on the chassis, and a light-transmitting cover 33 attached to the chassis to cover the light source 18. The light source unit 31 is detachably attached to the main body by an attachment mechanism such as an attachment spring, and is housed in the housing 30. An accessory attachment section 34 is provided at one end of the light source unit 31, and the anemometer 20 is disposed on the accessory attachment section 34.

[0026] Moreover, the reflective surface portion 32 on one side of the housing 30 is provided with an intake port 35 at one end in the longitudinal direction, and an exhaust port 36 at the other end. As shown in Fig. 3, a circulation duct 38 forming a circulation path 37 communicating with the intake port 35 and the exhaust port 36 is provided on the back side of the reflective surface portion 32. The intake port 35 and the exhaust port 36 are preferably disposed at positions separated from each other on both ends in the longitudinal direction of the housing 30 so that air blown out from the exhaust port 36 is not sucked into the intake port 35 and air is not circulated in a region close to the housing 30.

[0027] In the circulation duct 38, a fan 19 is disposed at a position facing the suction port 35, which draws in air from the room 13 through the suction port 35 and blows it out from the outlet 36 into the room 13 through the circulation duct 38. A centrifugal fan is used as the fan 19, which draws in air from the suction port 35 side, which is one side of the axial direction, and blows the air from the periphery toward the outlet 36 into the circulation duct 38. In the circulation duct 38, an air guide section 39 is provided facing the outlet 36, which guides the air flowing through the circulation duct 38 toward the outlet 36 toward the outlet 36. The fan 19 may be disposed at an intermediate position of the circulation duct 38 between the suction port 35 and the outlet 36 (in this case, an axial fan is used for the fan 19), or may be disposed on the outlet 36 side.

[0028] The anemometer 20 and the suction port 35 are disposed close to each other, and the anemometer 20 measures the wind speed of the air drawn into the suction port 35. The anemometer 20 is disposed in the light source unit 31, but may also be disposed near the suction port 35 on the reflective surface portion 32 of the housing 30. The anemometer 20 may also be disposed in either the housing 30 or the light source unit 31 near the air outlet 36 to measure the wind speed of the air, or may be disposed in an intermediate position of the circulation duct 38 to measure the wind speed of the air flowing through the circulation duct 38.

[0029] In addition, the reflecting surface 32 on one side of the housing 30 is provided with a light receiving unit 40 that receives an infrared signal transmitted from an external terminal 25 such as a remote control, and a display unit 41 that displays the state of the lighting device 11. The light receiving unit 40 and the display unit 41 are disposed near the air inlet 35. The light receiving unit 40 and the display unit 41 are connected to the control device 22, and are operated by power supplied from the control device 22 and controlled by the control device 22. The display unit 41 is, for example, an LED indicator, and displays the operating status of the fan 19, such as on / off and the wind speed of the fan 19, and the failure of the fan 19, by the color of the LED indicator, lighting, extinguishing, blinking, etc. The light receiving unit 40 and the display unit 41 may be provided on the accessory attachment unit 34 of the light source unit 31.

[0030] Next, the operation of the lighting device 11 will be described.

[0031] When power from AC power supply 23 is supplied to lighting device 17 through terminal block 16, lighting device 17 converts the input power and supplies operating power to control device 22 and communication unit 21 to operate them. When control device 22 starts operating, lighting device 17 supplies lighting power to light source 18 to light light source 18, and supplies rotational power to fan 19 to rotate fan 19.

[0032] At this time, the control device 22 controls the lighting timing of the light source 18 and the start timing of the fan 19 to be different from each other so that the fan 19 is started after the light source 18 is turned on. If the lighting timing at which the lighting device 17 supplies lighting power to the light source 18 in the turned-off state to light the light source 18 and the start timing at which the lighting device 17 supplies operating power to the fan 19 to start the fan 19 in the stopped state are simultaneous, the lighting current flowing through the light source 18 may be reduced or varied and unstable due to the start current flowing through the fan 19, and the light source 18 may flicker so as to repeatedly light and dark. However, by making the lighting timing and the start timing different, the fan 19 can be started while suppressing the flickering of the light source 18. Moreover, the fan 19 to be started is first rotated at a lower rotation number or rotation speed than the set rotation number or set rotation speed, for example, at the minimum rotation number or rotation speed, and then the rotation number or rotation speed is increased stepwise or continuously to the set rotation number or set rotation speed, thereby suppressing the flickering of the light source 18 after it is turned on.

[0033] Then, the light source 18 is turned on to irradiate the room 13 with light, thereby illuminating the room.

[0034] Furthermore, as the fan 19 rotates, it draws in air from the room 13 through the air inlet 35 and blows the air out of the room 13 through the air outlet 36, thereby circulating the air in the room 13.

[0035] An anemometer 20 senses the flow of air circulated by the fan 19 and measures the wind speed of the flowing air.

[0036] The control device 22 acquires the wind speed value measured by the anemometer 20, compares the acquired measured wind speed value with a set wind speed value, and controls the rotation of the fan 19 to increase or decrease so that the measured wind speed value becomes the set wind speed value. An initial value of the set wind speed value is set in advance, and the set wind speed value can be arbitrarily changed from the initial value by the external terminal 25.

[0037] In this way, the actual air flow created by the fan 19 is measured by the anemometer 20, and the rotation of the fan 19 is controlled based on the air speed measured by this anemometer 20, so that the actual air flow created by the fan 19 can be kept constant, reducing stagnation of air in the room 13 and enabling proper circulation of air in the room 13.

[0038] By using air circulation by the lighting device 11 in combination with air conditioning, the efficiency of air conditioning can be improved and energy can be saved. Furthermore, the lighting device 11 can prevent air from stagnating and remaining without being ventilated through the ventilation openings, thereby suppressing the retention of viruses and promoting ventilation.

[0039] Furthermore, the multiple lighting devices 11 installed in the room 13 operate as described above, and the entire air in the room 13 is circulated by the multiple lighting devices 11. In FIG. 1, F1 (solid arrow) shows the flow of air sucked in and blown out by the fans 19 of the lighting devices 11, and F2 (dashed arrow) shows the flow of air in the room 13. For example, the fan 19 of the left lighting device 11 sucks in air below the left region of the room 13 and blows it out to the central region on the right, the fan 19 of the central lighting device 11 sucks in air below the central region and part of the air circulated from the left lighting device 11 and blows it out to the right region on the right, and the fan 19 of the right lighting device 11 sucks in air below the right region and part of the air circulated from the central lighting device 11 and blows it out to the right region, and as a result, the entire air in the room 13 is circulated.

[0040] When a linked mode in which the lighting device 11 is linked with other lighting devices 11 is set, the lighting device 11 communicates with the other lighting devices 11, acquires wind speed information measured by the anemometer 20 of the other lighting devices 11, compares the wind speed information acquired from the other lighting devices 11 with the wind speed information measured by the anemometer 20 of its own lighting device 11, automatically sets a set wind speed value, and controls the rotation of the fan 19. This suppresses the difference between the air circulation action of its own lighting device 11 and the air circulation action of the other lighting devices 11, prevents partial air stagnation in the room 13, and allows appropriate air circulation throughout the room 13.

[0041] Furthermore, taking into consideration the residence time of air in the room 13, other lighting devices 11 arranged in other areas of the room 13 may control their fans 19 based on air circulation wind speed information acquired by a lighting device 11 arranged in one area of ​​the room 13, thereby adjusting air circulation in the entire area of ​​the room 13. For example, in the lighting device 11 on the left side of the room 13, after starting the fan 19, once the wind speed value measured by the anemometer 20 has stabilized, the wind speed information may be transmitted to the lighting devices 11 on the center and right side of the room 11 in FIG. 1, and the central and right lighting devices 11 may control the rotation of the fan 19 based on the wind speed information from the left lighting device 11.

[0042] In addition, by acquiring wind speed information obtained by the anemometer 20 of the lighting device 11 via the external terminal 25, the air flow caused by the fan 19 can be visualized and confirmed, making it possible to check the tendency of air stagnation in the room 13 and adjust the wind speed setting of the fan 19 to eliminate air stagnation.

[0043] In addition, the lighting device 17 supplies power to the light source 18, as well as to the fan 19, the control device 22, and through this control device 22 to the anemometer 20 and the communication unit 21, thereby simplifying the configuration compared to the case where a power supply is used for each component.

[0044] In addition, by transmitting an infrared signal from an external terminal 25 to a specific lighting device 11 and receiving the infrared signal at the light receiving unit 40 of the specific lighting device 11, it is possible to set settings including wind speed for the specific lighting device 11 and control the wind speed.

[0045] Moreover, by looking at the display on the display unit 41, the operating conditions of the fan 19, such as the on / off state and the air speed of the fan 19, and any malfunctions of the fan 19 can be confirmed.

[0046] It is also possible to circulate the air in the room 13 by rotating only the fan 19 with the light source 18 turned off.

[0047] Furthermore, the control of the fan 19 using such an anemometer 20 can be applied to lighting devices equipped with fans such as ceiling fans.

[0048] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0049] 11 Lighting equipment 17 Lighting Device 18 light source 19 Fans 20 Anemometer 21 Communications Department 22 Control device

Claims

1. A lighting device for lighting the light source; A fan to circulate the air; an anemometer for measuring the speed of air circulated by the fan; a control device that controls the rotation of the fan based on the air speed measured by the anemometer; A lighting device comprising:

2. The lighting device supplies lighting power to the light source and also supplies operating power to the fan and the control device.

2. The lighting device according to claim 1 .

3. The control device controls the lighting device to differentiate a timing at which the light source is turned on from a timing at which the fan is started.

2. The lighting device according to claim 1 .

4. A communication unit capable of communicating with other lighting devices, The control device acquires wind speed information of the other lighting devices through communication, compares the acquired wind speed information of the other lighting devices with its own wind speed information, and controls the rotation of the fan.

2. The lighting device according to claim 1 .

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