JP5799226B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device.

  Conventionally, there has been a light source block in which a plurality of LED modules are mounted on a substrate as an optical module of a lighting device (see Patent Document 1).

JP 2009-099497 A

  In an illumination device including an optical module as disclosed in Patent Document 1, in order to improve moisture proof performance, the connection with the power supply module is not a connector method but a lead wire method, and a silicone resin or the like is used for the lead wire portion. It is conceivable to apply However, the above-described lead wire delivery system not only incurs material costs for coating materials such as silicone resin, but also increases processing costs because it takes time to process lead wires and apply silicone resin and the like. There was a problem of incurring high costs.

  This invention is made | formed in view of the said reason, The objective is to provide the illuminating device which improved the moisture-proof performance, without becoming high cost.

In order to solve the above problems, a lighting device according to the present invention includes a connector on which a power source unit is connected, a board on which an LED module fed from the power source unit is mounted via the connector, and a fixture body that holds the board. With. The connector includes a positive terminal and a negative terminal connected to an anode and a cathode of the LED module as terminals connected to the board, respectively, and the plus terminal and the negative terminal in a state where the board is held in the fixture body. The connector is mounted on the substrate so that is directed upward. And the conduction | electrical_connection suppression part which suppresses that the said plus terminal and the said minus terminal conduct | electrically_connect with the water adhering to the surface of the said board | substrate is provided , The said connector is electrically connected between the said plus terminal and the said minus terminal. An unused terminal that is not used for connection is further provided, and the conduction suppressing unit is configured by the unused terminal .

  In this lighting device, it is preferable that the unused terminals are soldered to the substrate.

  In this lighting device, it is preferable that the amount of solder to the unused terminal is larger than the amount of solder to the plus terminal and the minus terminal.

  In this lighting device, it is preferable that the substrate has a pattern in which water attached to the surface of the substrate flows while avoiding the connector.

  In the present invention, there is an effect that the moisture-proof performance of the lighting device is improved at low cost.

(A) is the figure which looked at the board | substrate of the illuminating device of Embodiment 1 from the front of FIG. 4 (a). (B) is the figure which looked at the connector part same as the above from the bottom. It is the figure which looked at the board | substrate same as the above from the bottom. (A) (b) (c) is the figure which expanded the connector part same as the above. (A) is a security light to which the illumination device same as above is applied, and (b) is a perspective view of the same. It is the figure which looked at the board | substrate of Embodiment 2 from the bottom.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The illuminating device A of Embodiment 1 is demonstrated based on FIGS.

  As shown in FIG. 4A, the lighting device A is attached to the upper part of a support 24 standing outdoors (for example, a street 30) or using an arm 23, and is used as a security light for lighting the surroundings.

  As shown in FIG. 4B, the lighting device A includes a device main body 20, a light source block 7 and a power supply unit 8 housed in the device main body 20.

  The instrument body 20 includes a body 21 that is a resin molded product formed in an elongated box shape with one surface (lower surface) opened, and a globe 22 that is made of a translucent material such as acrylic and is attached to the opening of the body 21. . The body 21 is attached directly to the upper portion of the column 24 or using the arm 23 in a state where the tip side is inclined obliquely upward with respect to the arm 23 side fixed to the column 24. On the lower surface of the body 21, the power supply unit 8 is attached to the arm 23 side, and the light source block 7 is attached to the distal end side. The light source block 7 and the power supply unit 8 are covered with a globe 22.

  As shown in FIG. 1A and FIG. 2, the light source block 7 includes a substrate 3, a plurality of LED modules 2, and a connector 1. The substrate 3 has a rectangular plate shape and is attached to the body 21 such that the longitudinal direction thereof is parallel to the longitudinal direction of the body 21, and the longitudinal direction is inclined with respect to the horizontal plane in use. A plurality of LED modules 2 are mounted on one surface of the substrate 3 along the longitudinal direction of the substrate 3. The connector 1 is mounted on one surface of the substrate 3 so as to be positioned below the LED module 2 in use.

  As shown in FIGS. 1B and 3A, the connector 1 protrudes upward from the housing 1a and the upper surface of the housing 1a (the surface facing the LED module 2 and facing upward in use). And 4 pole terminals 4a, 4c, 4d, and 4b. The four-pole terminals 4a, 4c, 4d, and 4b are arranged in a line in order from the left end of FIG. The terminals 4a and 4b are located at both ends of the four-pole terminal, and are respectively electrically connected to the anode and the cathode of the LED module 2, and become a plus terminal and a minus terminal, respectively. The terminals 4c and 4d are located between the terminals 4a and 4b, and are soldered to the dummy patterns provided on the substrate 3 with solders 6c and 6d, respectively, but are used for electrical connection with the LED module 2. It has not been. Further, a connector (not shown) provided on a power supply line from the power supply unit 8 is plugged and connected to the lower surface of the housing 1a (the surface facing the power supply unit 8). Is supplied.

  Although the illumination device A has the above-described configuration, water droplets may adhere to the surface of the substrate 3 due to dew condensation or water that has entered the interior of the instrument body 20. As described above, since the substrate 3 is disposed in an inclined state with respect to the horizontal direction, water droplets attached to the surface of the substrate 3 are expected to flow downward on the surface of the substrate 3. An arrow D in FIG. 2 indicates a direction in which water droplets flow. Since the four-pole terminals 4a, 4c, 4d, and 4b of the connector 1 protrude upward from the housing 1a, water droplets may accumulate between the terminals. However, in the present embodiment, unused terminals 4c and 4d that are not used for electrical connection are arranged between the terminals 4a and 4b serving as the plus terminal and the minus terminal. Therefore, the water droplets flowing between the terminals 4a and 4b are separated by the terminals 4c and 4d, so that the terminals 4a and 4b are hardly connected by the water droplets, and the moisture-proof performance is improved.

  In the present embodiment, two unused terminals 4c and 4d serving as a conduction suppressing portion are provided between the terminals 4a and 4b. However, the number of unused terminals is not limited to two. There may be one and three or more.

  In addition, as shown in FIG. 3B, the lighting device A is provided with insulating ribs 5 arranged between the terminals 4a and 4b instead of the terminals 4c and 4d, and the ribs 5 suppress conduction. The part may be configured. Even if water droplets accumulate between the terminals 4a and 4b, the water droplets are separated by the rib 5, so that it is difficult for the terminals 4a and 4b to be short-circuited, and the moisture-proof performance is improved. The rib 5 may be provided integrally with the housing 1a, or may be provided as a separate component from the housing 1a and the substrate 3.

  As described above, the lighting device A includes the connector 1 connected to the power supply unit 8 and the board 3 on which the LED module 2 fed from the power supply unit 8 via the connector 1 is mounted, and the fixture body that holds the board 3. 20. The connector 1 includes a plus terminal and a minus terminal (terminals 4 a and 4 b) connected to the anode and cathode of the LED module 2 as terminals connected to the substrate 3, respectively. The connector 1 is mounted on the substrate 3 so that the terminals and the minus terminals (terminals 4a and 4b) face upward. And the illuminating device A is provided with the conduction | electrical_connection suppression part which suppresses conduction | electrical_connection between the plus terminal (terminal 4a) and a minus terminal (terminal 4b) with the water adhering to the board | substrate 3 surface.

  Thereby, there exists an effect that the moisture-proof performance of the illuminating device A improves.

  In the lighting device A, the connector 1 includes unused terminals (terminals 4c and 4d) that are not used for electrical connection between the plus terminal and the minus terminal (between the terminals 4a and 4b). The conduction suppressing portion is configured by the terminals.

  As a result, water droplets that adhere to the substrate 3 and flow between the positive terminal and the negative terminal (between the terminals 4a and 4b) are separated by unused terminals. It becomes difficult to conduct between the terminals 4a and 4b, and the moisture-proof performance of the lighting device A is improved. In addition, when a general-purpose product having three or more terminals is used for the connector 1, unused terminals can be formed in addition to the plus terminal and the minus terminal. By using this unused terminal as a conduction suppression unit, the conduction suppression unit can be provided without adding new components.

  In the lighting device A, it is preferable that the unused terminals 4 c and 4 d are soldered to the substrate 3.

  As a result, the gap formed between the unused terminals (terminals 4c and 4d) and the substrate 3 is closed by the solder, so that water droplets accumulated between the plus terminal or the minus terminal and the unused terminal are not used. It becomes difficult to flow to the opposite side through the gap between the terminal in use and the substrate, and the moisture resistance is improved.

  Further, in the lighting device A, as shown in FIG. 3C, the amount of solder 6c, 6d of the unused terminals 4c, 4d is the amount of solder 6a, 6b to the terminals 4a, 4b that become the plus terminal and the minus terminal. More than the amount of

  Thus, since the amount of solder of the unused terminal is larger than the amount of solder of the plus terminal and the minus terminal, the solder 6a of the plus terminal 4a is between the plus terminal 4a and the unused terminal. Even if the water droplets accumulate up to the height, the solder 6a is lower in height from the substrate 3 than the solder of the unused terminals, so that the water drops do not move beyond the unused terminals to the opposite side. Similarly, even if water drops are accumulated between the minus terminal 4b and the unused terminal up to the height of the solder 6b of the minus terminal 4b, the solder 6b is higher than the solder of the unused terminal from the substrate 3. Because of the low, water droplets do not move beyond the unused terminals to the opposite side.

  Thereby, by increasing the amount of solder of the unused terminals more than the amount of solder of the terminals 4a and 4b serving as the plus terminal and the minus terminal, it becomes difficult for the plus terminal and the minus terminal to conduct, and the moisture-proof performance is improved. improves.

(Embodiment 2)
A lighting apparatus according to Embodiment 2 will be described with reference to FIG.

  In the present embodiment, the pattern 9 is formed on the substrate 3 of the lighting device A described in the first embodiment. Except for the pattern 9, the pattern 9 is the same as the first embodiment. Reference numerals are assigned and explanations thereof are omitted.

  As shown in FIG. 5, patterns 9, 9 extending from the lower side of each LED module 2 toward the left and right sides are formed on the surface of the substrate 3, respectively. One end of the pattern 9 extends to a place closer to the center of the substrate 3 than the position of the end portion of the LED module 2 in the short direction of the substrate 3. The other end of the pattern 9 extends outward from the end of the connector 1 in the short direction of the substrate 3. The plurality of patterns 9 are symmetrical with respect to a center line that divides the substrate 3 into two in the short direction, and are arranged at substantially the same intervals as the LED modules 2 along the center line. In FIG. 5, the pattern 9 is composed of a wiring pattern that forms an electric circuit, but may be a silk pattern formed on the surface of the substrate 3.

  Since the pattern 9 as described above is formed, when water droplets attached to the surface of the substrate 3 flow from the upper side to the lower side, the water droplets flow along the pattern 9 to the outside of the substrate 3. Therefore, as shown in FIG. 5, since the water droplets adhering to the substrate 3 flow away from the connector 1, the amount of water droplets flowing into the connector 1 is reduced.

  As a result, the second embodiment is less likely to collect water in the connector 1 than the first embodiment, and the moisture-proof performance is improved.

1 Connector 1a Housing 2 LED module 3 Board 4a Terminal (plus terminal)
4b terminal (minus terminal)
4c, 4d Terminal 5 Ribs 6a, 6b, 6c, 6d Solder 7 Light source block 8 Power supply unit 9 Pattern 20 Instrument body 21 Body 22 Globe 23 Arm 24 Post 30 Street

Claims (4)

A connector connected to a power supply unit, a board on which an LED module fed from the power supply unit via the connector is mounted, and an instrument body holding the board,
The connector includes a positive terminal and a negative terminal connected to the anode and cathode of the LED module as terminals connected to the substrate,
The connector is mounted on the board so that the plus terminal and the minus terminal face upward while the board is held by the instrument body,
A conduction suppressing part for suppressing conduction of the positive terminal and the negative terminal with water attached to the surface of the substrate ;
The connector further includes an unused terminal that is not used for electrical connection between the plus terminal and the minus terminal,
The illuminating device , wherein the continuity suppressing unit is configured by the unused terminals .   The lighting device according to claim 1, wherein the unused terminals are soldered to the substrate.   The lighting device according to claim 2, wherein a solder amount to the unused terminal is larger than a solder amount to the plus terminal and the minus terminal.   The lighting device according to claim 1, wherein a pattern is formed on the substrate such that water attached to the surface of the substrate flows while avoiding the connector.

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