JPH0738893Y2 - Sunlight tracking lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a sunlight tracking and daylighting device for introducing sunlight into a shaded area or the inside of a building.

[Background Art] In recent years, in urban areas, the problem that sunlight cannot be sufficiently obtained due to the effects of overcrowding and the increase in the size and scale of buildings has become apparent. Various types of solar light introducing devices have been devised to solve such problems, but there is a problem of how to easily introduce solar light. There is also a problem in that the orientation and shape of the building to be installed can be easily adjusted.

[Object of the Invention] In view of the above problems, the object of the present invention is to easily change the direction of the movable reflecting mirror according to the installation location so that the sun can be applied to both the south and north shades of the installation location. It is to provide a sunlight tracking daylighting device capable of introducing light.

DISCLOSURE OF THE INVENTION FIG. 1 to FIG. 6 show an embodiment of the present invention, which is a solar tracking daylighting device installed in a building having a central courtyard.

In the embodiment, a solar tracking type reflection mirror driving device 3 is provided on the roof of the building 1 on the north side of the courtyard 2, and a control device 4 for controlling the reflection mirror driving device 3 is provided in the basement of the building 1, for example.

The reflection mirror drive device 3 includes a movable reflection mirror 6, an azimuth angle drive unit 5 that sets an azimuth angle of the movable reflection mirror 6, a pulse motor 7 that controls and drives the azimuth angle drive unit 5, and a movable reflection mirror 6. An azimuth angle detector 8 for detecting an azimuth angle,
The azimuth angle lock mechanism unit 9 for locking the azimuth angle of the movable reflection mirror 6 and the pulse motor 40, and the movable reflection mirror 6
Of the movable reflection mirror 6, a pulse motor 11 that controls and drives the altitude angle drive unit 10, an altitude angle detection unit 12 that detects the altitude angle of the movable reflection mirror 6, It is composed of an altitude angle lock mechanism unit 14 for locking the altitude angle and a pulse motor 41, and is additionally provided with a reception antenna 16 of a wireless reception unit 15 described later and a three cup anemometer 13 for wind speed detection.

The control device 4 includes a motor drive unit 17 including an azimuth motor amplifier 18a and an altitude angle motor amplifier 18b that drive the pulse motors 7 and 11, respectively, and a motor drive unit 46 that drives the pulse motors 40 and 41 separately. A wind speed detection unit 20 including an instantaneous wind speed detection unit 19a for detecting an instantaneous wind speed with an electric signal corresponding to the wind speed from a generator provided in the three cup anemometer 13 and an average wind speed detection unit 19b for detecting an average wind speed, Comprised of an arithmetic control unit 21 and an operation display unit 22, a power supply unit 39,
The arithmetic control unit 21, the wind speed detection unit 20, and the motor drive units 17 and 46 are housed, and the operation display unit 22 is arranged on the upper part. The calculation control unit 21 includes a data storage unit 23 that stores latitude data, altitude angle data and time data when the sun is in the middle of the sun, a wireless reception unit 15 that receives transmission data sent from the wireless operation unit 24, and an operation display. An operation / display control unit 25 that inputs the manual operation data from the unit 22 and outputs the display data, and a pulse motor 41 for locking the control data of the motor drive unit 17 and the altitude angle lock mechanism unit 14 and an azimuth angle lock mechanism unit. The data is output to the lock motor 40 of No. 9 and includes a tracking control unit 28 for taking in instantaneous wind speed data and average wind speed data, altitude angle detection data and azimuth angle detection data from the wind speed detection unit 20, and is composed of a microcomputer. The data captured from the storage unit 23, the wireless reception unit 15, the tracking control unit 28, and the operation / display control unit 25 and the clock count data of the year / month / day and time being counted. The optimum altitude angle β ′ and azimuth angle α ′ of the movable reflecting mirror 6 are calculated based on the above, and a control signal is output to the motor driving unit 17 through the tracking control unit 28, or based on the wind speed data. Of the control signal for the lock of the altitude angle lock mechanism unit 14 and the azimuth angle lock mechanism unit 9 to the pulse motors 41 and 40 of the motor drive unit 46 of the azimuth angle lock mechanism unit 9; The calculation unit 29 is provided to output the display data of β and wind speed to the operation display unit 22 through the operation / display control unit 25. In addition to the power switch, the operation display unit 22 is provided with keys for setting the current time, designating the lock of the movable reflecting mirror 6, or setting the azimuth angle α ′ and the altitude angle β ′.
And a display unit 22b for displaying the above-mentioned display data, and a large-sized display unit 22b 'can be added if necessary. Further, the operation display unit 22 can be installed separately from the main body of the apparatus by a code.

The altitude angle and azimuth angle of the sun are calculated by the following equations.

sinβ ＝ sinψsinδ ＋ cosψcosδcost sinα ＝ cosδsint / cosββ: solar altitude (horizontal 0 °, zenith 90 °) α: sun direction (south central 0 °, east 90 °, west 90 °) t : Hours (0 ° for south-central time, 15 ° for 1 hour) ψ: Latitude of set place δ: Declination (coordinate position of the sun on the celestial sphere) Therefore, the reflection mirror driving device 3 is on the roof of the building. Is installed. The reflection mirror driving device 3 is fixed to a mount 26 on the roof of the building with bolts, and forms a main body together with the mount 26.
A pulse motor 7 and an azimuth angle drive unit 5 including an appropriate transmission mechanism, an azimuth angle lock mechanism unit 9 and a driving pulse motor 40 are housed inside a vertical shaft 31 that is rotated or locked in the horizontal direction by these components. A support base 33 is attached to the upper end of the vertical shaft 32, and the support base 33 is provided on one of the two arms on the front end thereof with an advanced angle drive unit 10 and a pulse motor, each of which has an appropriate transmission mechanism. 11 and the altitude angle lock mechanism 14 and the pulse motor 41 are provided on the other side, and one end of the horizontal shaft 34 attached to the back of the movable reflection mirror 6 is connected to the altitude angle drive unit 10. The horizontal shaft 34 is configured to be rotatable in the vertical direction, and the other end of the horizontal shaft 34 is connected to the altitude angle lock mechanism portion 14 so that the rotation of the horizontal shaft 34 can be locked by the altitude angle lock mechanism portion 14. ing. The movable reflecting mirror 6 is attached to the horizontal shaft 34 by an appropriate fastening means, and the direction of the movable reflecting mirror 6 can be reversed by loosening the fastening means. The movable reflecting mirror 6 includes one large reflecting mirror formed by combining a plurality of tempered glass convex mirrors (R = 10 m to 20 m), a frame 35 for fixing the mirror, and the frame 35. Consists of a mirror fixing base 36 to hold, and an adjusting mechanism (not shown) that changes the curvature of the large reflecting mirror by adjusting the set angle of each convex mirror to change the irradiation range and irradiation illuminance. Is compounded with synthetic resin to prevent cracking and is protected from wind pressure, external impact, and thermal expansion.

The three cup anemometer 13 is provided on the rear upper portion of the support base 33, and the receiving antenna 16 of the wireless reception unit 15 is detachably attached to the rear upper portion of the support base 33 like the three cup anemometer 13.

The reflection mirror driving device 3, the three cup anemometer 13, and the receiving antenna 16 are surrounded by a safety fence 27, and a cable 37 from the outside is provided between the reflection mirror driving device 3 and the control device 4 provided indoors. Connected and protected against external interference waves.

Next, the operation of the sunlight tracking daylighting apparatus of this embodiment will be described.

First, at the time of completion of construction, it is necessary to adjust the angle of the movable reflection mirror 6 to see the introduction state of sunlight to a predetermined position and perform the adjustment. Therefore, the receiving antenna 16 is attached to the support base 33 of the reflection mirror driving device 3, and the control calculation unit
The wireless reception unit 15 is connected to the calculation unit 29 of 21, and after that, the operator carries the wireless operation unit 24 and sends a wireless signal while observing a desired reflection position. In this case, when the data of the altitude angle β ′ and the azimuth angle α ′ of the movable reflecting mirror 6 is input by an operation switch (not shown) provided in the wireless operation unit 24, the data is transmitted as a wireless signal and wirelessly received through the receiving antenna 16. The operation data received and demodulated by the unit 15 and read by the operation unit 29 is read and determined by the operation unit 29, and the operation unit 29 creates control data. This control data is converted into a control signal through the tracking control unit 28, and each motor amplifier 18a, 18a
The pulse signals are sent to the motor amplifiers 18a and 18b, and pulse signals are output from the motor amplifiers 18a and 18b to drive the corresponding pulse motors 7 and 11. Therefore, the azimuth angle α'and the altitude angle β'are set in the movable reflecting mirror 6 in response to the operation of the wireless operation unit 24 in real time. The operator appropriately moves the movable reflection mirror 6 and appropriately sets the irradiation range while observing the situation of the reflected light and the position of the desired shade portion. When an appropriate irradiation range can be set here, the operator operates a standby switch (not shown) of the wireless operation unit 24 to transmit an initial setting command signal, and then the calculation that receives the command signal through the wireless reception unit 15 The unit 29 reads the current year / month / day / time data and the data of the azimuth α ′ and the altitude β ′ of the movable reflecting mirror 6 from the azimuth angle detector 8 and the altitude angle detector 12 to set the installation position. The relationship between the sun altitude angle β, the azimuth angle α, and the time is determined, and the judgment result is compared with the relationship data between the sun altitude angle β, the azimuth angle α, and the time stored in the data storage unit 23. Then, the correction value is calculated by using the correction value, and this correction value will be used in the determination of the azimuth angle α ′ and the altitude angle β ′ in the future automatic sun tracking. The correction value is data corresponding to the angle γ, and the correction value is calculated by inputting the height H of the building 1 and the distance 1 from the building 1 in the shaded area where the sunlight should be introduced by the reflection mirror 2. May be. There is a 90 ° difference between the azimuth angles α and α '. When the above initial setting is completed, the movable reflecting mirror 6, the sun S, the wireless receiving unit 15, and the receiving antenna
Remove 16 as it is no longer needed. Now, after the initialization is completed, the calculation unit 29 of the calculation control unit 21 determines the current solar altitude angle β and azimuth angle α based on the data stored in the data storage unit 23, the correction value calculated above, and the time count data. The altitude angle β ′ and the azimuth angle α ′ of the movable reflecting mirror 6 are calculated from the above to create control data, and the tracking control unit 28 and each motor amplifier 18
The pulse motors 7 and 11 are controlled through a and 18b and the drive units 5 and 10 so that the movable reflecting mirror 6 is automatically tracked to the sun S. At this time, the tracking control unit 28 takes in the detection data from the azimuth angle detection unit 8 and the altitude angle detection unit 12 and gives the rotation state data of the movable reflecting mirror 6 to the calculation unit 29, and based on the data, the calculation unit. 29 continues control until the movable reflecting mirror 6 is rotated to a predetermined altitude angle β ′ and azimuth angle α ′.
In the embodiment, the control data transmission interval is once a minute. Further, the sun tracking of the movable reflecting mirror 6 is performed from sunrise to sunset, the sun tracking is stopped when the altitude angle α of the sun S becomes constant, and the computing unit 29 returns the movable reflecting mirror 6 to the operation start position of the next day. Control data tracking control unit
It sends it to 29. In this way, throughout the year, the computing unit 29 makes the altitude angle β and the azimuth angle α of the sun S at that time on that day
Then, the altitude angle β ′ and the azimuth angle α ′ of the movable reflecting mirror 6 are calculated from the correction values to create control data, and the pulse motors 7 and 11 are generated.
Is driven to cause the movable reflecting mirror 6 to track the sun S, thereby introducing sunlight into a predetermined shade. Of course, the operating time of the device is different every day, and it is possible to change the sunshine duration of the shade part according to the change of the four seasons. The sun is tracked even in rainy weather.

By the way, since the movable reflection mirror 6 has a large area, a large wind pressure is applied under strong wind, which may damage the altitude angle drive unit 12 and the azimuth angle drive unit 8 due to an excessive load. The calculation unit 29 monitors the instantaneous wind speed data and the average wind speed data from the wind speed detection unit 20 detected by the electric signal from 13, and the detected wind speed is, for example, 40 m /
Upon detecting that the time exceeds sec, the arithmetic unit 29 immediately sends the lock command data to the tracking control unit 28 in order to stop and lock the tracking. The tracking control unit 28 creates a control signal and drives the pulse motors 41, 40 of the altitude angle lock mechanism unit 14 and the azimuth angle lock mechanism unit 9 to drive the motor drive unit 4.
Output to 6. The altitude angle lock mechanism unit 14 and the azimuth angle lock mechanism unit 9 are driven by the pulse motors 41 and 40, and the horizontal axis 3
4. The rotation of the vertical shaft 32 is locked. Of course, the movable reflection mirror 6 may be stopped at a position where it is least susceptible to wind pressure and locked at the same time.

After this lock is applied, the calculation unit 29 fetches the wind speed data from the wind speed detection unit 20 at that time via the tracking control unit 28 at intervals of 1 hour, and the detected wind speed at that time is 40 m / sec.
When it becomes lower, a lock release command is output to drive the pulse motors 41 and 40 to release the lock. At the same time, control data for rotating the movable reflecting mirror 6 so as to correspond to the altitude angle β and the azimuth angle α of the sun S at the time of cancellation is output, and then the normal sun tracking control operation is returned to.

Although the above-described embodiment is a construction example in which sunlight is reflected and introduced to the south side of the building 1 as shown in FIG. 6 (a), when sunlight is introduced to the shaded area on the north side of the building 1, The fastening of the movable reflecting mirror 6 to the horizontal shafts 34 on both sides holding the movable reflecting mirror 6 between the both arms of the support 33 is loosened, and the movable reflecting mirror 6 is rotated about the horizontal shaft 34 to reverse the direction of the movable reflecting mirror 6. If it is held in the opposite direction to the protruding direction and installed as shown in FIG. 6 (b), sunlight can be reflected and introduced into the shaded area on the north side of the building 1.

In this way, by appropriately setting the direction of the movable reflecting mirror 6 according to the direction and shape of the building 1, sunlight can be introduced not only in the shaded area on the south side but also on the shaded area on the north side.

[Effects of the Invention] The present invention has a vertical shaft that is horizontally rotated by an azimuth drive means and projects vertically from the upper surface of the main body, and a support base is attached to this vertical shaft. Two arms are provided so as to project in a direction orthogonal to the vertical axis and outward from the outer peripheral surface of the main body, and a horizontal axis that is vertically rotated by altitude angle drive means is provided between the tips of the arms. , The movable reflecting mirror is attached to the horizontal axis so that the turning radius is within the distance from the position of the outer peripheral surface of the main body on the protruding side of the arm to the position of the horizontal axis of the tip of the arm. Since the direction of the mirror surface of the movable reflection mirror can be reversed, the movable reflection mirror can be rotated in the vertical direction at a position away from the position of the outer peripheral surface of the main body without being disturbed by the outer peripheral surface of the main body. , Therefore, movable reflection when installed on the roof of a building An advantage that the direction of irradiation of the mirror can be easily directed to the required direction without being obstructed by the main body below, and sunlight can be reflected and introduced into the shaded area on the north side of the building. There is.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of the present invention, FIG. 2 (a) is a front view of the reflecting mirror driving device of the above, which can be partially cut away, and FIG. 2 (b) is partially broken of the above reflecting mirror driving device. A side view that can be omitted, FIG. 3 (a) is a front view of the control device of the above, FIG. 3 (b) is a side view of the control device of the same, FIG. 4 is a circuit configuration diagram of the same, and FIG. (B) is an explanatory diagram of the same operation principle as above,
6 (a) and 6 (b) are explanatory views of an example of installation of the above-mentioned reflection mirror driving device, in which 1 is a building, 3 is a reflection mirror driving device, 6 is a movable reflection mirror, 4 is a control device, and 5 is an azimuth. The angular drive, 34 is the horizontal axis.

Front page continuation (72) Masayuki Nakagawa, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Akio Kurosaki, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (56) References Kai 52-115240 (JP, A) JP 57-63504 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A movable reflection mirror and a control signal from an arithmetic control unit rotate the movable reflection mirror in a horizontal direction and in a vertical direction respectively to track the sun and reflect sunlight into a shaded part of a building. An azimuth drive means and an altitude angle drive means are provided, and a vertical shaft that is rotated in the horizontal direction by the azimuth drive means is vertically projected from the upper surface of the main body and a support base is attached to this vertical shaft. Two arms are provided so as to project from both sides of the base in a direction orthogonal to the vertical axis and outward from the outer peripheral surface of the main body, and are vertically rotated by the altitude angle drive means between the tips of the arms. A horizontal axis is provided, and the movable reflecting mirror is attached to the horizontal axis so that the turning radius is within the distance from the position of the outer peripheral surface of the main body on the protruding side of the arm to the position of the horizontal axis at the tip of the arm. Reversing the direction of the mirror surface of the movable reflecting mirror by rotating the shaft Solar light tracking lighting apparatus being characterized in that the standing.