JP4083277B2 - LED illumination device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an LED illumination unit and its installation structure for illuminating with a row of light flowing in various commercial facilities, and in particular, so that a work for installing a large number of units in a predetermined arrangement at a use site can be easily performed. Related to technical improvements.
[0002]
[Prior art]
In pachinko parlors and other places, you can often see illuminations reminiscent of flowing light columns. This equipment is as follows. A base rail is attached to the wall of the store. A large number of lamp sockets are arranged on the base rail at regular intervals, and lamps (incandescent light bulbs) are screwed into the sockets.
These lamps are divided into two groups A and B, for example, and are connected to the drive circuit system. Lamps belonging to group A and lamps belonging to group B are alternately arranged. All the lamps belonging to group A are flashed all at once, and all the lamps belonging to group B are flashed all at once.
In a slightly more expensive system, each lamp is divided into three groups A, B, and C, and each lamp is arranged in the order ABCABCABC. And it blinks all at once for each group. Similarly, there are systems divided into four groups.
[0003]
In addition, illumination equipment is often seen in which neon tubes of, for example, about 50 centimeters are continuously arranged for a long time to express a row of flowing light. Also in this case, each neon tube is divided into 2 to 4 groups and connected to the drive system.
[0004]
[Problems to be solved by the invention]
Since the conventional illumination equipment as described above consumes a large amount of power, the equipment including the power equipment becomes quite expensive. In addition, there is a problem in that the cost of electricity is high, and it is expensive to replace the lamp. In particular, a device employing a waterproof structure for outdoor use is extremely expensive. Further, in the case of an illumination facility using a neon tube, a special and expensive drive transformer is required, which is further expensive.
[0005]
Although it is such an expensive device, it cannot be said that the illumination expression ability is high. The expression of illumination is more abundant in the 3 group type than the 2 group type described above, and further in the 4 group type. However, even with the 4-group type, the entire lamp row can only be expressed uniformly, and the flash pattern can be changed by the long lamp row part, and the complex and dynamic illumination expression can be changed. It is impossible to realize.
[0006]
In order to install this kind of illumination equipment on the site, it is necessary to perform mechanical equipment work in which a large number of lamps and neon tubes are arranged on the wall surface of the building, and electrical equipment work associated therewith. In order to be able to express as many different illuminations as possible, the electrical wiring and facilities become complicated for the reasons described above, and the construction becomes troublesome.
Considering the actual construction situation of building work and various incidental work, if the mechanical installation work and the electrical wiring and equipment work can be clearly separated from the work of the illumination equipment, the former work and the latter work are each It can be entrusted to a specialized craftsman, and it will be advantageous in terms of time and cost overall. However, the current illumination equipment has a structure that can be constructed only by craftsmen with electrical expertise, and the construction is inefficient and expensive.
[0007]
Note that it is better to use LED lamps to improve power consumption and lamp burnout problems. Recently, the following LED illumination devices have been developed. In this, flat LED lamps are sparsely arranged at equal intervals on a flexible tape member and coated with a transparent resin. The LED lamps on the tape member are alternately connected to the group A wiring and the group B wiring, and all the LED lamps belonging to the group A are flashed simultaneously, and all the LED lamps belonging to the group B are flashed simultaneously. The
This tape-type LED illumination device is inexpensive and has very few lamps. It can also be easily installed on the site. Despite these advantages, the ability to express illumination is very simple and cannot produce a variety of decorative effects. The cause is as described above. Also, since it is intended for very small illuminations, it is a basic design that is not suitable for increasing the brightness of the illumination. Therefore, it is difficult to realize a large, complex and high-luminance illumination facility in a large-scale store.
[0008]
The present invention has been made in view of the above-mentioned conventional problems, and its purpose is inexpensive, simple structure and robust, easy installation on site, and highly efficient by LED lamp group. It is an object to provide an LED illumination unit and its installation structure that can realize a high brightness and can control the blinking of a large number of LED lamp groups one by one and enable various illumination expressions.
[0009]
[Means for Solving the Problems]
The LED illumination device according to the present invention is specified by the following items (1) to (6).
(1) It is an LED illumination device provided with a plurality of units and a plurality of pedestal plates. (2) The unit is a group in which n groups of LED lamp groups are arranged at a constant pitch d on a belt-like substrate (3 ) The pedestal plate has a strip shape with a total length of n × d and can be attached to the wall surface. (4) The strip base of the unit is shorter in length than the pedestal plate and the difference is smaller than d. (5) The pedestal plate (6) The unit is equipped with an input connector at one end of the belt-like substrate and an output connector at the other end, and the light emitted from the input connector The control data is serially transferred to the output connector, and each LED lamp group is caused to emit light individually based on the input light emission control data.
DETAILED DESCRIPTION OF THE INVENTION
=== Mechanical structure of unit 1 ===
An appearance of an LED illumination unit 1 according to an embodiment of the present invention is shown in FIG. 2 is a plan view of the unit 1 and the pedestal plate 20, and FIG. 3 shows a cross-sectional structure of the unit 1 combined with the pedestal plate 20, and FIG. 4 shows that the two units 1 are installed in succession. FIG. Further, FIG. 5 shows a configuration of an electronic circuit of one unit 1, and FIG. 6 shows a configuration example of an illumination system using a large number of units 1.
[0012]
The band-shaped substrate 2 is a groove-shaped member of an aluminum extruded product of about 45 centimeters, and a band-shaped printed wiring board 3 is attached in the groove-shaped space. Four LED lamp groups 41, 42, 43, and 44 are sparsely arranged on the printed wiring board 3 at a pitch of about 13 centimeters, and a drive control circuit 5 for controlling light emission of these lamps individually. A buffer circuit 6 (FIG. 5) and the like are mounted. Each LED lamp group 41 to 44 includes a total of three LEDs, two amber LED lamps 4a and one blue-green LED lamp 4b.
[0013]
At one end of the unit 1, an input connector 7 and a power connector 9a are drawn and wired with an appropriate length of electric wire. At the other end of the unit 1, an output connector 8 and a power connector 9b are drawn and wired with wires of appropriate length. Of course, these connector wirings are connected to the pattern wiring of the printed wiring board 3. The plastic 10 is molded in the groove-shaped space of the belt-like substrate 2 on which the printed wiring board 3 is arranged, and a total of twelve lens bodies of the amber LED lamp 4a and the blue-green LED lamp 4b are exposed on the surface of the molded plastic 10. In addition, the wiring of each connector is drawn out from the end face of the molded plastic 10. Due to this plastic mold structure, the unit 1 has a considerably high level of waterproofness.
[0014]
=== Electric Circuit of Unit 1 ===
As shown in FIG. 5, the drive control circuit 5 is an IC in which an 8-bit shift register 5a, an 8-bit latch circuit 5b, and an 8-bit LED drive circuit 5c are integrated. The amber LED lamp 4a of the collective lamp 41 is connected to the drive output D1, and the two blue-green LED lamps 4b are connected in series to the drive output D2. Similarly, the LEDs 4a and 4b of the collective lamp 42 are connected to drive outputs D3 and D4, the LEDs 4a and 4b of the collective lamp 43 are connected to drive outputs D5 and D6, and the LEDs 4a and 4b of the collective lamp 44 are drive outputs D7 and D8. It is connected to the.
[0015]
The input connector 7 has 4 terminals. The shift clock applied to the first terminal passes through the buffer circuit 6 and becomes the shift clock of the shift register 5a. The light emission control data applied to the second terminal is applied to the first stage R1 through the buffer circuit 6 as the serial data input of the shift register 5a. The latch signal applied to the third terminal becomes the strobe input of the latch circuit 5b. The enable signal applied to the fourth terminal is a drive permission input of the drive circuit 5c.
The output connector 8 also has 4 terminals. The shift clock output of the buffer circuit 6 is connected to the first terminal. The serial data output from the final stage R8 of the shift register 5b is applied to the second terminal. The latch signal output of the buffer circuit 6 is connected to the third terminal. An enable signal for the buffer circuit 6 is connected to the fourth terminal.
That is, the shift clock, latch signal, and enable signal applied to the input connector 7 from the previous stage are output from the output connector 8 to the subsequent stage as they are via the buffer circuit 6. The light emission control data applied to the input connector 7 from the previous stage is serially input to the first stage R1 of the 8-bit shift register 5a and is forwarded in synchronization with the shift clock, and the light emission control data output from the final stage R8 is output from the output connector 8. Output to the subsequent stage.
[0016]
When a shift clock and light emission control data are synchronously input to the input connector 7 and 8-bit light emission control data is set in each stage R1 to R8 of the shift register 5a, and then a latch signal is input to the input connector 7, the shift register 5a The 8-bit data is read and held in the respective stages L1 to L8 of the latch circuit 5b. When an enable signal is input to the input connector 7, the drive circuit 5c lights up and drives the LEDs connected to the stages D1 to D8 according to the light emission control data held in the latch circuit 5b at that time. Note that a duty variable pulse is given as an enable signal to adjust the luminance of the LED.
If the data of L1 of the latch circuit 5b is “1”, the amber LED lamp 4a connected to D1 of the drive circuit 5c is driven to light. If the data of L2 of the latch circuit 5b is “1”, the blue-green LED lamp 4b connected to D2 of the drive circuit 5c is turned on. Of course, if the light emission drive data latched is “0”, the LED is not lit. The operation of the circuits after L3 · D3 is the same.
As described above, one set lamp 41 is a set of two amber LED lamps 4a and one blue-green LED lamp 4b. When L1 = "0" and L2 = "1", only the amber LED lamp 4a is turned on, and the emission color of the collective lamp 41 is amber. When L1 = "1" and L2 = "0", only the blue-green LED lamp 4b is lit, and the emission color of the collective lamp 41 is blue-green. When L1 = L2 = “1”, the two color LEDs 4a and 4b are both turned on, and the emission color of the collective lamp 41 is white. Of course, when L1 = L2 = “0”, the collective lamp 41 is not turned on.
[0017]
The positive and negative electrodes of the power connectors 9a and 9b at both ends of the unit are directly connected by the pattern wiring (power line) of the printed wiring board 3, and a Zener diode ZD and capacitors C1 and C2 are connected between the positive and negative power lines. Yes. By connecting a power supply device to one of the power supply connectors 9a and 9b, power is supplied to the power supply line inside the unit. Although omitted in FIG. 3, wiring is performed so that operating power is applied from the power supply line to the ICs of the drive control circuit 5 and the buffer circuit 6.
[0018]
It should be noted that multi-color or full-color expression can be realized by combining three LED lamps of RGB as the LED lamp group and variably controlling the luminance of each color in several steps.
[0019]
=== System configuration ===
A configuration example of an LED illumination system in which six units 1 are connected is shown in FIG. Six units 1 are arranged on a wall of a store so as to form a continuous line with an appropriate layout. At that time, the unit 1 is oriented so that the input connector 7 of the adjacent unit 1 comes to the output connector 8 side of a certain unit 1, and the input connector 7 and the output connector 8 of the adjacent unit 1 are connected. Connect in series. Moreover, the power supply lines of all the units 1 are connected in series by connecting the power connectors 9a and 9b facing each other in adjacent units.
[0020]
Then, the system controller 11 is connected to the input connector 7 of the unit 1 located at the end of all the units 1 connected in series. Further, in this system configuration example, the power supply device 12 is connected to the power connector 9a of the end unit 1 to which the system controller 11 is connected. The power supply device 12 is a switching power supply that converts a commercial power supply into a direct current having a predetermined voltage, and has a capacity capable of simultaneously driving six units 1. However, when a system is configured with a larger number of units 1, there is a case where a single power supply device 12 cannot cover the operating power of all the units 1. In that case, regarding the connection of the power supply lines, the whole is divided into several groups, and a power supply apparatus having an appropriate capacity is connected to each group. By connecting the power supply devices to both ends of one group, the power supply voltage of each unit in the group can be made uniform, and the deviation in luminance for each unit can be suppressed.
[0021]
The system controller 11 is composed of a relatively simple computer such as a board computer or a one-chip microcomputer, generates the aforementioned light emission control data and sends it to the input connector 7 together with the shift clock, and generates the aforementioned latch signal and enable signal. To the input connector 7.
When six units 1 having the circuit configuration shown in FIG. 5 are connected in series, six 8-bit shift registers 5a in each unit 1 are connected in series. X6) = 48-bit shift register. Therefore, 48-bit light emission control data is sequentially generated and output in synchronization with the shift clock, so that the 48-bit light emission control data is sequentially packed into each 8-bit shift register 5a in the six units 1. be able to. When predetermined 48-bit data is packed in the whole, the latch signal is output. Then, each data packed in the shift register is held in each stage of the latch circuit 5b. At this time, if the enable signal is also validated, the LED lamp groups 41 to 44 in total (4 × 6) = 24 are controlled to emit light according to the data held in the latch circuit 5b.
[0022]
As described above, each one of the LED lamp groups 41 to 44 is composed of a set of two amber LED lamps 4a and one blue-green LED lamp 4b, and the corresponding 2-bit light emission control data is (0 , 0), the collective lamp does not light up. If the light emission control data is (1, 0), the collective lamp lights in amber. If the light emission control data is (0, 1), the collective lamp is blue. If the light emission control data is (1, 1), the collective lamp is lit in white.
[0023]
The system controller 11 outputs the latch signal after serially outputting the 48-bit light emission control data, thereby controlling the light emission patterns of the 24 LED lamp groups 41 to 44 according to the 48-bit light emission control data pattern. it can. By repeating the process of changing the 48-bit light emission control data at an appropriate cycle, the temporal change in the light emission pattern of the row of 24 LED lamp groups 41 to 44 can be arbitrarily generated. Depending on the regularity of the temporal change of the light emission pattern to be created, change the control to update all the 48-bit light emission control data, generate new light emission control data by several bits and shift-in, A latch signal is generated while shifting the entire data to drive the LED lamp groups 41 to 44.
[0024]
As is apparent from the above principle description, the system controller 11 performs the following data processing. In one example, a bit pattern of light emission control data is generated in advance and stored in a memory, the bit pattern is read in accordance with a programmed sequence, and input to the unit 1 together with a shift clock, a latch signal, and an enable signal that are generated simultaneously. This is a method of sending out toward the connector 7. In another example, a generation sequence of light emission control data is programmed, and the light emission control data is generated by executing the program and sent to the input connector 7 of the unit 1 together with a shift clock, a latch signal, and an enable signal. It is a method. Since either method is relatively simple data processing, it can be easily realized if it has a function equivalent to a one-chip microcomputer. Further, in the case of a large-scale system in which hundreds of units 1 are connected in series and the light emission control pattern of about a thousand LED lamp groups is changed in various ways, the system controller 11 performs a considerably high-speed data processing. For example, a board computer using a 32-bit CPU is suitable.
[0025]
=== Combined Structure of Unit 1 and Pedestal Plate 20 ===
As shown in FIGS. 2 and 3, the base plate 20 is a long plate member of an aluminum extruded product having a length of about 52 centimeters. The width is substantially the same as the width of the unit belt-like base 2, and the lower side portion is bent into a U-shape to form the rail portion 21.
On the other hand, the back portion of the unit belt-like substrate 2 protrudes on both sides, and an upper flange 2a and a lower flange 2b are formed. When the back surface of the unit belt-like substrate 2 is overlapped with the front surface of the pedestal plate 20 and slid slightly downward, the lower flange 2b is inserted into the rail portion 21 of the pedestal plate 20 as shown in FIG. Thus, the unit 1 is positioned in the vertical direction with respect to the base plate 20.
[0026]
Further, as shown in FIG. 2, the upper flange 2a of the unit belt-like base body 2 is formed with key holes 2c at two locations, and correspondingly, fixing screws 22 are attached to the base plate 20 at two locations. Yes. As described above, when the rear surface of the unit 1 is overlapped with the front surface of the pedestal plate 20 while the lower flange 2 b is inserted into the rail portion 21, the keyhole 2 c is aligned with the position of the fixing screw 22. By doing so, the unit 1 is also positioned in the left-right direction with respect to the base plate 20, and the unit 1 is substantially fixed by the fixing screw 22. By tightening the screw 22, it is firmly fixed to the unit 1.
[0027]
As shown in FIG. 2, mounting holes 23 are formed near both ends of the pedestal plate 20 to pass screws for fixing the plate itself to the building wall.
[0028]
=== Dimensional Design of Unit 1 and Pedestal Plate 20 ===
As shown in detail in FIG. 2, the total length of the unit strip-shaped substrate 2 is 45 centimeters, and four LED lamp groups 41 to 44 are arranged at equal intervals at a pitch of 13 centimeters. The distance between the left end of the belt-like substrate 2 and the center of the left end LED lamp group 41 is 3 centimeters. Similarly, the distance between the right end and the center of the right end LED lamp group 44 is also 3 centimeters.
The overall length of the pedestal plate 20 is 52 centimeters. This is four times the arrangement pitch (13 centimeters) of the LED lamp groups 41 to 44 and is 7 centimeters shorter than the total length of the unit 1. When the unit 1 is positioned and fixed with respect to the pedestal plate 20 by the keyhole 2c and the fixing screw 22, the unit 1 is positioned at the center of the pedestal plate 20 as shown in FIG. Both ends are projected by 3.5 centimeters.
[0029]
The work of installing a large number of LED illumination units 1 in a straight line on the wall of the building is performed as follows.
First, the required number of pedestal plates 20 are mounted side by side along a predetermined line on the building wall surface (fixed to the wall surface through screws in the mounting holes 23). At that time, the end portions of the adjacent pedestal plates 20 are arranged in a state where the end portions are almost adhered to each other. This work is completely mechanical work, and there is no need to rely on a specialized electrician who knows the mechanism of the LED illumination system.
Next, the unit 1 is positioned and fixed to each pedestal plate 20 attached to the wall surface. At this time, as shown in FIG. 4, by positioning and fixing the unit 1 having a total length of 45 cm with respect to the pedestal plate 20 having a total length of 52 cm, a gap of 7 cm is provided between the left end and the right end of the adjacent units 1. The distance between the center of the left end LED lamp group 41 of the right unit 1 and the center of the right end LED lamp group 44 of the left unit 1 is 13 centimeters. This is the same as the arrangement pitch of the LED lamp groups 41 to 44 in the unit. In the space between the units 1 and 1, the input connector 7 of one unit 1 and the output connector 8 of the other unit 1 are connected, and the power connectors 9a and 9b are similarly connected. Further, as shown in FIG. 7, a cover 70 is attached so as to straddle the interval portion between the two units 1, and the connector connection portion is covered. In the embodiment of FIG. 7, each of the LED lamp groups 41 to 44 is composed of 6 LEDs.
[0030]
The installation work so far does not require any electrical engineering skills. The unit 1 is mounted and fixed to each pedestal plate 20 that is arranged like a rail and attached to the wall surface, and the adjacent connectors are simply fitted together. The units 1 are automatically positioned, and the intervals between the LED lamp groups between the adjacent units 1 are also equal. Therefore, there is no hassle of proceeding with construction while measuring the mounting dimensions at the site.
[0031]
Depending on the relationship between the installation position of the unit 1 and the observation location of the unit 1, the unit 1 may be installed with an appropriate inclination with respect to the unit installation surface such as a wall surface of a building. For example, when the units 1 are installed horizontally at a high position on the wall of a building and the observation place is at a low position such as a road, the unit 1 is installed by being inclined downward appropriately. In order to facilitate such installation work, an inclined pedestal plate 80 as shown in FIG. 8 is prepared. If the back surface of the inclined pedestal plate 80 is joined and fixed to a vertical wall surface, and the unit 1 is positioned and fixed to the pedestal plate 80 in the manner described above, the front surface of the unit 1 is at a certain angle with respect to the vertical wall surface. Just going downwards.
[0032]
【The invention's effect】
The LED illumination unit of the present invention is inexpensive, has a simple structure and is robust, is easy to install on the site, and can achieve a high brightness with high efficiency by the LED lamp group. Since it is a mechanism that can control the blinking of a large number of LED lamps one by one, an appropriate light emission control pattern can be changed only by a part of a long lamp row, or the partial light emission control pattern can be generated. It is possible to easily realize a variety of illumination expressions that are rich in changes that could not be realized with conventional illumination equipment, such as moving long lamp trains.
[0033]
In particular, according to the installation structure of the present invention, the installation of a large number of units on the wall of a building can be performed mechanically easily, relying on a specialized engineer who knows the electrical mechanism of the illumination system. The work can be carried out efficiently and efficiently. There is no need to measure the mounting dimensions of each unit at the site, and the arrangement pitch of all LED lamp groups is automatically fixed. In this respect, the construction is simple and efficient. In addition, even after installation, each unit can be easily attached and detached, so the maintenance and inspection workability is very good.
[Brief description of the drawings]
FIG. 1 is an external view of an LED illumination unit according to an embodiment of the present invention.
FIG. 2 is a plan view of the unit 1 and a base plate 20;
FIG. 3 is a cross-sectional view showing the mounting structure of the unit.
FIG. 4 is a plan view of a state in which two units are installed continuously.
FIG. 5 is a block diagram showing a circuit configuration of the unit.
FIG. 6 is a schematic configuration diagram of an LED illumination system using the same unit.
7 is a plan view of a state in which a cover 70 is attached to a space between the unit 1 and the unit 1. FIG.
FIG. 8 is a state diagram in which the unit 1 is installed at an angle with respect to the installation surface using the inclined pedestal plate 80. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 LED illumination unit 2 Strip | belt-shaped base | substrate 2a Upper flange 2b Lower flange 2c Keyhole 3 Printed wiring board 4a Amber LED lamp 4b Blue-green LED lamps 41-44 LED lamp group 5 Drive control circuit 5a Shift register 5b Latch circuit 5c Drive circuit 6 Buffer circuit 7 Input connector 8 Output connector 9a / 9b Power connector 10 Mold plastic 11 System controller 12 Power supply device 20 Base plate 21 Rail portion 22 Fixing screw 23 Mounting hole 70 Cover 80 Inclined base plate

Claims (1)

LED illumination device specified by the following items (1) to (6).
(1) It is an LED illumination device provided with a plurality of units and a plurality of pedestal plates. (2) The unit is a group in which n groups of LED lamp groups are arranged at a constant pitch d on a belt-like substrate (3 ) The pedestal plate has a strip shape with a total length of n × d and can be attached to the wall surface. (4) The strip base of the unit is shorter in length than the pedestal plate and the difference is smaller than d. (5) The pedestal plate (6) The unit is equipped with an input connector at one end of the belt-like substrate and an output connector at the other end, and the light emitted from the input connector Control data is serially transferred to the output connector, and each LED lamp group is caused to emit light individually based on the input light emission control data.

Images