JP2010086752A - Led light source base board for led illumination, and led lighting device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED light source base board applicable to different power source voltage specifications by using a single light source base board, and to provide an LED illumination device equipped with the same. <P>SOLUTION: The LED lighting device 10 includes an LED light source base board 1 in its inner part. As for the LED light source base board 1, a resistive element 2 for voltage adjustment as well as 11 LED elements 31-35, 30'-35' are sequentially mounted on the first mounting part 12a neighboring an input/output terminal 11 on an ascending row. In order to connect both end side of the rising row and the descending row, a jumper wire 6 is provided for short-circuiting a wiring pattern 13 extending from a mounting part 12f, 12f' to the next mounting parts 12g, 12g'. A power source means 4 is provided, for instance, with a DC/DC converter or the like (not illustrated here) and a bias voltage to the LED light source base board 1 can be suitably changed. With this, a brightness (luminance) of the LED lighting device 10 can be suitably adjusted (changed). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to an LED light source substrate for LED lighting and an LED lighting device including the same,
In particular, an LED light source substrate for LED illumination that can change the brightness of the LED illumination device according to the power supply voltage specification and the number of LEDs mounted without changing the LED light source substrate, and an LED illumination device including the LED light source substrate About.

In recent years, lighting devices using light emitting diode (LED) elements have become widespread. In such an LED lighting device, a plurality of LED elements are connected in series on a light source substrate, and a voltage applied to the LED lighting device is adjusted by a resistance element connected in series to these LED elements. is doing. In the LED lighting device, the number of LED elements to be mounted is determined according to the shape (size) of the light source substrate, the size of the LED element itself, and the resistance value of the resistance element is also determined according to the voltage used. It is.

Further, there has been proposed an LED illumination device that stably emits an LED illumination device by connecting a constant current control element in series to the LED element without providing a resistance element for voltage adjustment (for example, Patent Documents). 1). Patent Document 1 also proposes a plurality of LED arrays in which a plurality of LED elements are connected in series (see FIG. 2).
JP 2006-303165 A

However, in the LED lighting device disclosed in Patent Document 1, the number of LED elements mounted on a circuit board (light source board) is determined in advance depending on the shape of the circuit board, etc. Since a rated voltage exists, it cannot be applied to power supplies with different voltage specifications using the same circuit board. On the other hand, the shape of one light source substrate and the same LE
There is a desire to be able to use power supplies with different voltage specifications depending on the characteristics of the D element.

The present invention has been made in view of the above points, and the object thereof is to be applied to power supplies with different voltage specifications by changing the number of LED elements mounted using the same LED light source substrate. Another object of the present invention is to provide an LED light source substrate for LED lighting and an LED lighting device including the same.

In order to solve the above-described problems, an LED light source substrate (1) for LED illumination according to the present invention is an LE.
A plurality of placement portions (12a to 12h) for placing D elements (31 to 35, 30 'to 35')
, 12a ′ to 12h ′) are arranged at predetermined intervals in at least two rows, and the adjacent placement portions in each row are electrically connected via the wiring pattern (13) by placing the LED elements. And an input / output terminal (11, 1) for connection to an external power source (4) at one end of each column.
1 ′) is provided.

According to the LED light source substrate for LED illumination of the present invention, in the LED light source substrate having such a configuration, the LED element is placed from the input terminal side to a desired placement portion, and the wiring pattern is arranged on the opposite side of the input terminal. Can be applied to power supplies having different voltage specifications according to the number of LED elements using the same LED light source substrate.

In the LED light source substrate for LED illumination of the present invention, it is preferable that the plurality of placement portions are arranged in even-numbered column pairs. As described above, the LED light source substrate is provided with a power supply having a different current specification (for example, a constant current device) by providing placement units of four rows, six rows, etc. on the LED light source substrate and connecting them in series or in parallel in units of row pairs. Etc.).

The LED illumination device (10) of the present invention includes the above-described LED light source substrate (1) therein, and at least one input / output terminal (11) of the column has a resistance element (2) for voltage adjustment. The LED element is placed from one end of each row to a predetermined placement portion, and the wiring pattern (13) extending from the predetermined placement portion to the next placement portion is short-circuited by the jumper wire (6). It is characterized by being. Thereby, it can be made to apply to the power supply of a different voltage specification by changing the number of LED elements mounted using the same LED light source board | substrate, ie, the number of LED elements connected in series.

According to the present invention, the same L provided with a plurality of placement portions capable of placing the LED elements in even rows.
It is possible to provide an LED light source substrate and an LED lighting device for an LED lighting device that can be applied to power supplies having different voltage specifications by using the ED light source substrate.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an LED light source substrate for LED illumination and an LED illumination apparatus including the LED light source substrate according to the invention will be described in detail with reference to the accompanying drawings.

First, the configuration of the LED light source substrate for LED illumination of the present invention will be described. FIG. 1 is a conceptual diagram of an LED light source substrate for LED illumination according to an embodiment of the present invention. As shown in FIG. 1, the LED light source substrate 1 in this embodiment includes input / output terminals 11 and 11 ′ for connection to an external power source.
And mounting portions 12a to 12h and 12a ′ to 12h ′ for mounting the LED elements, and a wiring pattern 13 for electrically connecting the mounting portions.

Here, as shown in FIG. 1, the placement units 12 a to 12 h and 12 a ′ to 12 h ′ are arranged in two rows with a predetermined interval divided into an uplink line and a downlink line. In the present embodiment, for convenience of explanation, the column in which the placement units 12a to 12h are provided is an up line (up row), and the placement units 12a ′ to 12h.
A column in which 12h ′ is provided is a downlink (downlink). The input / output terminals 11 and 11 ′ are provided at one end of each column of the placement portions 12a to 12h and 12a ′ to 12h ′. From the input / output terminals 11 and 11 ′ to the other end of the column, A wiring pattern 13 is provided. As will be described later, the wiring pattern 13 is formed by placing LED elements on the adjacent placement portions 12 in each row.
a to 12h and 12a 'to 12h' are electrically connected.

Normally, in LED light source boards, LEDs that should be connected in series according to the power supply voltage specification
The number of elements is determined. In this LED light source substrate 1, LE is used depending on the power supply voltage used.
Adjust the number of LED elements connected in series by deciding the number of D elements to be placed (arranged) and placing the LED elements at the positions determined in two rows and folding the circuit. Therefore, it can handle different power supply voltage specifications.

In addition, in FIG. 1, although the case where the eight mounting parts 12a-12h and 12a'-12h 'were provided in 1 row was shown as an example, in this invention, the mounting part provided in 1 row is shown. The number is not limited to this, and may be appropriately changed depending on the use and size of the light source substrate, the shape (size) of the LED element to be used, and the like.

Next, the configuration of the LED lighting device of the present invention will be described. FIG. 2 is a conceptual diagram of an LED lighting device according to an embodiment of the present invention. Here, for ease of explanation and illustration, the LED
The exterior case of the illuminating device 10 is not shown. This also applies to the following modified examples. As shown in FIG. 2, the LED lighting apparatus 10 in this embodiment is provided with the LED light source substrate 1 shown in FIG.

The LED light source substrate 1 has an initial placement portion 12 adjacent to the input / output terminals 11 in the upstream row.
A resistance element 2 for voltage adjustment is placed on a. The resistance element 2 has its capacity determined and changed based on the number of LED elements to be mounted and the voltage of the external power supply. In the present embodiment, as shown in the drawing, 11 LED elements 31 to 35, 30 ′ to 3 are provided on the LED light source substrate 1.
5 'shall be mounted sequentially from one end side.

In order to electrically connect both at the other end of the upstream and downstream rows, the last LE on the other end side
From the placement units 12f and 12f ′ on which the D elements 35 and 35 ′ are placed to the next placement units 12g and 1g,
A jumper wire 6 for short-circuiting the wiring pattern 13 extending to 2g ′ is provided. In addition, as long as the up line and the down line can be short-circuited, not only the jumper wire 6 but also a wire or element having a resistance value of substantially 0Ω may be used.

The power supply means 4 that is an external power supply includes, for example, a DC / DC converter (not shown), and the like.
The voltage applied to the ED light source substrate 1 can be changed as appropriate. The applied voltage from the power supply means 4 may be changed between 12V, 24V, 36V, 48V, etc., for example.

FIG. 3 is a circuit diagram of the LED lighting device shown in FIG. As shown in FIG. 3, by using the jumper wire 6, the LED elements 31 to 35, 30 placed on the LED light source substrate 1 are used.
'-35' is electrically connected to the power supply means 4 in series.

As described above, the LED lighting device 10 of the present embodiment includes the input / output terminal 11 of the LED light source substrate 1.
LED elements 31 to 3x, 31 'to 3x' (x is n above) from the 11 'side (one end side) to the mounting portions 12n and 12n' (n is any letter of a to h) at appropriate positions. And the brightness (brightness) of the LED lighting device 10 is appropriately adjusted (changed) by short-circuiting the upstream line and the downstream line by the jumper wire 6 on the other end side. . Therefore, by using the LED light source substrate 1 of the present embodiment, the light source is the same LED light source substrate according to the output voltage of the power supply means 4 (voltage applied to the LED light source substrate 1) and the number of LED elements to be mounted. As the brightness can be changed. As a result, the same L
Since various LED lighting devices can be manufactured using the ED light source substrate,
The manufacturing cost of the ED illumination device 10 can be reduced. Further, it is possible to provide an LED light source board that can cope with different power supply specifications without changing the specifications of the individual LED elements and without affecting the outer shape of the LED lighting device 10.

Next, a modification of the LED lighting device of the present invention will be described. FIG. 4 is a modification of the LED lighting device according to the embodiment of the present invention. As shown in FIG. 4 (a) or 4 (b), in the LED lighting device 10 ′ of the present invention, the LED light source substrate 1 ′ has a plurality of up-and-down row pairs (here, 2 pairs). It may be provided. Note that the LED light source substrate 1 shown in FIG. 1 and L shown in FIG.
Some components that are the same as those in the ED illumination device 10 are given the same reference numerals, and some components are omitted.

When a plurality of such column pairs are provided, the LED illumination device 10 ′ is provided with jumper wires 6 for each column pair on the other end side of the LED light source substrate 1 ′, as shown in FIG. By providing power supply means 4 corresponding to each column pair, the column pairs may be connected in parallel. Alternatively, as shown in FIG. 4 (b), the LED lighting device 10 ″ is provided with jumper wires 6 for each column pair on the other end side of the LED light source substrate 1 ′, and one column pair on one end side of the LED light source substrate 1 ′ is descended. A jumper wire 6 is provided for electrically connecting the column and the upstream column of the other column pair, and the input / output terminal 11 on the upstream column side of one column pair and the input / output terminal on the downstream column side of the other column pair By providing power supply means 4 connected to 11 ', the column pairs may be connected in series.

As described above, in the LED lighting devices 10 ′ and 10 ″ of the present invention, by providing a plurality of column pairs each composed of an upstream column and a downstream column, power supplies having different current specifications (for example, constant current devices)
Can also respond.

FIG. 4 shows a case where two column pairs are provided on the LED light source substrate 1 ′. However, in the present invention, the number of column pairs is not limited to two, and the shape of the LED light source substrate, The brightness of the LED lighting device may be determined by appropriately adjusting the number of column pairs depending on the size or the like.

Further, the number of LED elements placed in each row (up row, down row) of each row pair is the same as the case shown in FIG. It may be changed appropriately according to the situation. Further, the method of placing the jumper wire 6 on the other end side of each column is not limited to each column pair as described above, and one jumper wire is provided so as to short-circuit all the columns, The column pair itself may be connected in series by appropriately changing the connection with the power supply means 4 at 11 ′.

Next, a further modification of the LED lighting device of the present invention will be described. FIG. 5 is a conceptual diagram of an LED lighting device according to another embodiment of the present invention, and FIG. 6 is a circuit diagram of the LED lighting device shown in FIG. The LED lighting device 100 of this example is different from the LED lighting device 10 shown in FIGS. 2 and 3 in that a part of the LED elements to be mounted is changed to a Zener diode. In addition, FIG.
The same components as those of the LED light source substrate 1 shown in FIG. 2 and the LED lighting device 10 shown in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 5, the LED lighting device 100 in this example includes the LED light source substrate 1 shown in FIG. On the LED light source substrate 1, the voltage adjusting resistance element 2 is mounted on the first mounting portion 12 a adjacent to the input / output terminals 11 in the upstream row. In addition, seven LED elements 31, 33, 35, 30 ′, 31 ′, 33 ′, and 35 ′ are mounted on the LED light source substrate 1 and are connected between the LED elements in the opposite direction to the LED elements. 51, 52, 5
1 'and 52' are mounted (refer FIG. 6). Furthermore, a jumper wire 6 for short-circuiting the wiring pattern 13 is provided in order to electrically connect both at the other end side of the upstream and downstream rows.

The Zener diode is used in place of the LED element and functions as a voltage adjusting means. As described above, in the LED lighting device 100, the brightness of the LED lighting device 100 (the brightness that is darker than the case where the LED elements are mounted on all mounting portions) is obtained by mounting the Zener diode instead of the LED elements. Can be adjusted to a desired brightness. In addition, since the Zener diode is less expensive than the LED element, the manufacturing cost of the LED lighting device 100 can be reduced.

As described above, according to the LED light source substrate 1 for LED illumination of the present invention, the plurality of placement portions 12a to 12h and 12a ′ to place the LED elements 31 to 35 and 30 ′ to 35 ′.
12h 'are arranged at equal intervals in at least two rows (preferably, a pair of even rows such as two rows, four rows, etc.), and adjacent mounting portions 12a-12h, 12a'-12h' in each row are arranged. LED
The elements 31 to 35 and 30 'to 35' are electrically connected via the wiring pattern 13, and input / output terminals 11 and 11 'for connecting to an external power source are provided at one end of each column. It is configured to be able to. In the LED light source substrate 1 having such a configuration, LED elements are placed from the input / output terminals 11 and 11 ′ side to a desired placement portion, and the wiring pattern 13 is short-circuited on the opposite side of the input / output terminals 11 and 11 ′. By using the same LED light source substrate 1, LE
The present invention can be applied to power supplies having different voltage specifications depending on the number and characteristics of D elements.

Moreover, like LED light source board | substrate 1 'for LED illumination, several mounting part 12a ... may be arrange | positioned at the column pair of an even number row | line | column. In this case, depending on how the jumper wire 6 is placed, it is possible to deal with power supplies (for example, constant current devices) having different current specifications.

Furthermore, according to the LED illumination device 10, 10 ′, 10 ″ of the present invention, the LED as described above
A light source substrate 1, 1 ′ is provided therein, and a resistance element 2 for voltage adjustment is placed on an input / output terminal 11 in an upstream row, and predetermined placement portions 12 a to 12 e, 12 a ′ to 12 a are arranged from one end of each row. LE up to 12e '
The D elements 31 to 35 and 30 ′ to 35 ′ are placed, and predetermined placement portions 12e and 12e ′ are placed.
The wiring pattern 13 extending from one to the next mounting portion 12 f, 12 f ′ is short-circuited by the jumper wire 6. By configuring in this way, as described above, the same L
It is possible to provide an LED lighting device that can be applied to power supplies having different voltage specifications using an ED light source substrate.

As mentioned above, although the LED light source board for LED lighting of this invention and the LED lighting apparatus provided with the same were demonstrated based on the accompanying drawing, this invention is not limited to these structures, Claim Various modifications are possible within the scope of the technical idea described in the scope, specification and drawings. In addition, even if it has a shape, structure, or function that is not directly described in the specification and drawings, it is within the scope of the technical idea of the present invention as long as it has the effects and advantages of the present invention.
That is, each part (component) constituting the LED lighting device can be replaced with any component that can exhibit the same function. Moreover, arbitrary components may be added.

For example, in the above-described embodiment, an example in which eight placement units are provided in each row on the LED light source substrate is shown. However, the number of placement units on the LED light source substrate is not limited to this, and LED illumination is provided. It may be appropriately changed depending on the size and use of the LED light source substrate applied to the apparatus.

In the above-described embodiment, the number of columns on which the mounting portions are provided in the LED light source substrate has been described as an even number such as two columns, four columns, etc. However, the input / output terminal 11 ′ may be provided on the other end side or mounted. L to put
The placement portions may be provided in odd rows by changing the characteristics of the ED elements 31.

In addition, the LED lighting device of the present invention may have LED elements or the like attached in advance to the LED light source board at the time of shipment from the factory according to the power supply voltage specification, and determines the number of LED elements or the like to be placed as appropriate by the purchased user. It may be an assembly kit to assemble, or LED
Only the light source substrate may be distributed alone.

It is a conceptual diagram of the LED light source board for LED illumination which concerns on one Embodiment of this invention. It is a conceptual diagram of the LED lighting apparatus which concerns on one Embodiment of this invention. FIG. 3 is a circuit diagram of the LED lighting device shown in FIG. 2. It is a modification of the LED lighting apparatus which concerns on one Embodiment of this invention. It is a conceptual diagram of the LED lighting apparatus which concerns on another embodiment of this invention. It is a circuit diagram of the LED lighting apparatus shown in FIG.

Explanation of symbols

1, 1 ′, 1 ″ LED light source board 11, 11 ′ input / output terminals 12a to 12h, 12a ′ to 12h ′ mounting portion 13 wiring pattern 2 resistance elements 31 to 35, 30 ′ to 35 ′ LED element 4 power supply means 6 Jumper wire 10, 10 ', 10 ", 100 LED lighting device 51, 52, 51', 52 'Zener diode

Claims (3)

A plurality of placement portions for placing the LED elements are arranged at predetermined intervals in at least two rows, and adjacent placement portions in each row place the LED elements on the wiring pattern. An LED light source substrate for LED illumination, wherein an input / output terminal for connection to an external power source is provided at one end of each row. The LED light source substrate for LED illumination according to claim 1, wherein the plurality of placement units are arranged in even-numbered column pairs. The LED light source substrate according to claim 1 or 2 is provided therein,
A resistance element for voltage adjustment is placed on at least one input / output terminal of the row, LED elements are placed from the one end of each row to a predetermined placement portion, and the predetermined placement portion The LED lighting device, wherein the wiring pattern extending from one to the next mounting portion is short-circuited by a jumper wire.

Images