JP6206752B2 - Power supply device and power supply case used therefor - Google Patents

Description

  The present invention relates to a power supply device used for electrical equipment such as a lighting device and a case for a power supply device used for the power supply device.

  2. Description of the Related Art Conventionally, as a lighting device (power supply device) used in an illumination device, a device including a metal case (base portion) that houses a power supply circuit and a cover portion that covers the base portion is known (for example, , See Patent Document 1). The base portion has a box shape, houses the power circuit on the inner bottom surface, and is attached to the inside of the lighting device via the outer bottom surface.

  By the way, in recent years, LEDs are widely used as illumination light sources to replace incandescent lamps and fluorescent lamps. The LED is smaller than an incandescent lamp or a fluorescent lamp as a light source, and may be incorporated not only in a lighting device but also in a construction material such as a ceiling, a wall, or a shelf. Thus, the installation conditions of the light source are diversified, and the power supply device for turning on the light source is not only housed in the illumination device but also directly attached to the construction material.

JP 2006-331857 A

  However, in the case where the power supply device is directly attached to the construction material, in order to prevent heat generated in the power supply circuit from being transferred to the construction material, 10 mm is provided between the attachment surface on which the power supply device is attached and the power supply circuit. It is necessary to secure the above distance. However, in the power supply device described in Patent Document 1, since the base portion housing the power supply circuit is directly attached to the mounting surface, it is possible to ensure a sufficient distance between the power supply circuit and the construction material. The power circuit cannot be safely attached to the construction material.

  This invention solves the said subject, and it aims at providing the power supply device which can attach a power supply circuit to a construction material safely, and the case for power supplies used therewith.

The case for a power supply device of the present invention includes a base portion on which a power supply circuit is mounted, and a cover portion that covers the base portion. The base portion has a box shape, and the power supply circuit is mounted on an inner bottom surface. The mounting surface is disposed so that the outer bottom surface faces the mounting surface for mounting the power supply circuit, and the cover portion is arranged in a state where the mounting surface and the mounting surface are separated from each other. if it possesses a holding portion for holding the base part detachably, and a extended by legs toward the attachment surface from the periphery of the cover portion is attached to the power supply circuit to the building material, the cover When attaching the base part to the base part and attaching the leg part to the attachment surface, and attaching the power supply circuit to the inside of the electric device, the base part is attached to the base part without attaching the cover part to the base part. the Rukoto attached to the mounting surface And butterflies.

  The holding portion extends from the peripheral edge of the cover portion toward an outer direction perpendicular to the direction in which the leg portion extends, and the held portion extends in the same direction as the direction in which the holding portion extends from the base portion. Is preferably engaged.

It is preferable that a plurality of the holding portions are provided and are disposed asymmetrically with respect to the center of the cover portion when the cover portion is viewed from a direction orthogonal to the mounting surface.

  It is preferable that the cover portion has a long shape when viewed from a direction orthogonal to the mounting surface, and the leg portions are provided at both ends in the longitudinal direction of the cover portion.

  It is preferable that the cover portion has a long shape when viewed from a direction orthogonal to the mounting surface, and the leg portions are respectively provided at both ends in the short direction of the cover portion.

  It is preferable that the cover portion is a rotationally symmetric body with the center of the cover portion as a rotation axis when viewed from a direction orthogonal to the mounting surface.

Power supply of the present invention is characterized and the case for the above-described power supply device, by comprising a constant current power supply circuit and to the power supply circuit.

Power supply of the present invention is characterized and the case for the above-described power supply device, by comprising a constant voltage power supply circuit and to the power supply circuit.

  According to the present invention, since the power supply circuit is held in a state separated from the mounting surface by the power supply device case, a distance is secured between the power supply circuit and the construction material, and the power supply circuit can be safely used as the construction material. Can be attached.

(A) (b) is an example of the circuit diagram of the illuminating device using the power supply device which concerns on embodiment of this invention. (A) is the disassembled perspective view of the said power supply device, (b) is the perspective view which looked at the same power supply device from the same direction as (a). (A) is the disassembled perspective view which looked at the said power supply device from the direction different from FIG. 2, (b) is the perspective view which looked at the same power supply device from the same direction as (a). (A) is sectional drawing at the time of attaching the said power supply device to a construction material, (b) is sectional drawing at the time of attaching a power supply circuit inside an electric equipment, without attaching the case for power supply devices. Sectional drawing at the time of attaching the power supply device which concerns on the modification of the said embodiment to a construction material, (b) is sectional drawing at the time of attaching a power supply circuit inside an electric equipment, without attaching the case for power supply devices. (A) is a plan view of a case for a power supply device and a base portion constituting a power supply device according to another modification of the above embodiment, and (b) is a case where the case for the power supply device is mounted on the base portion in the correct orientation. (C) is a plan view when the case for the power supply device is attached to the base portion in the wrong direction. The perspective view of the case for power supply devices which comprises the power supply device which concerns on the further another modification of the said embodiment. The disassembled perspective view of the power supply device which concerns on the further another modification of the said embodiment. The perspective view which shows a mode when a base part is rotated 60 degree | times with respect to the case for power supply devices in the said power supply device. The perspective view of the power supply device which concerns on the other modification of the said embodiment.

  A power supply apparatus according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1A, the power supply device 1 is, for example, a power supply device that supplies a constant current from an external commercial power source to an illumination device including the light emitting unit 2. The light emitting unit 2 includes a plurality of light emitting elements 21 connected in series with each other, and the light emitting elements 21 are configured by, for example, LEDs or organic EL light emitting panels. In such an illuminating device, since the structure of the power supply device 1 is simple, the efficiency of the entire illuminating device can be easily improved.

  Further, in another example shown in FIG. 1B, the power supply device 1 is a power supply device that supplies a constant voltage to a plurality of light emitting modules 22 connected in parallel to each other. Each light emitting module 22 includes the above-described light emitting element 21 and a driving power source 23 for driving the light emitting element 21. The driving power source 23 includes a power source and a control circuit for supplying a constant current to the light emitting element 21. In such an illuminating device, since the light emitting element 21 is driven and controlled for each light emitting module 22, the power supply device 1 can be easily designed. In addition, it is possible to reduce adverse effects on the entire lighting device caused by fluctuations in each light emitting module 22, such that even if one light emitting module 22 fails, the light emission of other light emitting modules 22 is not affected.

  As shown in FIGS. 2 and 3, the power supply device 1 described above includes a power supply circuit 3, a base portion 4 on which the power supply circuit 3 is mounted, and a cover portion 5 that covers the base portion 4 (dots in FIG. 2A). And a power supply case 6 having the structure shown in FIG. 2 and 3 show the power supply device 1 as viewed from opposite directions.

  The power circuit 3 includes a wiring board 31 on which electronic components are mounted, an input terminal block 32 to which an input line (not shown) from an external commercial power source is connected, and a relay line that connects the wiring board 31 and the input terminal block 32. 33 and an output line 34 led out from the wiring board 31.

  The base portion 4 is made of a conductive metal material, for example, aluminum. The base part 4 has a rectangular box shape with an opening on one side, and is disposed in the interior of the lighting device (electrical device) or in the construction material so that the outer bottom surface faces the mounting surface M for mounting the power supply circuit 3. Is done. Further, the base portion 4 has a mounting surface 41 on which the wiring board 31 is mounted on the inner bottom surface thereof, and a terminal block mounting portion 42 to which the input terminal block 32 is screwed on the outer peripheral surface thereof. The wiring board 31 is screwed to the mounting surface 41 with a metal screw (not shown), and this metal screw also serves as a ground for the wiring board 31. In addition, the base portion 4 has slits 43 and 44 for passing each of the relay line 33 and the output line 34 on the side surface. The base portion 4 has an elongated shape that is elongated in one direction when viewed from the direction D orthogonal to the mounting surface M. In the following description, the direction along the longitudinal direction of the base portion 4 is the longitudinal direction. A direction along the short direction of the base portion 4 is referred to as a short direction.

  The cover portion 5 has a rectangular box shape made of aluminum, for example, and covers the base portion 4 so as to close the opening of the base portion 4. The cover portion 5 includes a holding portion 7 for holding the base portion 4 in a detachable manner, a leg portion 8 extending from the peripheral edge 51 of the cover portion 5 toward the mounting surface M, and one side surface of the cover portion 5. And a protection unit 52 that stands up toward the outside and protects the input terminal block 32 of the power supply circuit 3.

  The holding part 7 is extended toward the outside perpendicular to the direction in which the leg part 8 extends from the center of the peripheral edge 51 of the cover part 5 at each of both ends in the longitudinal direction of the cover part 5. Each holding portion 7 engages with a held portion 45 extending in the same direction as the direction in which the holding portion 7 extends from the bottom surface of the base portion 4. The holding part 7 and the held part 45 have screw holes 71 and 46, respectively, and are screwed together by screws 9 through these screw holes 71 and 46.

  Two leg portions 8 are provided at each of both end portions in the longitudinal direction of the cover portion 5. Each leg portion 8 extends from the peripheral edge 51 of the cover portion 5 toward the attachment surface M, and extends from the end of the extension portion 81 toward the outside perpendicular to the extension portion 81 and contacts the attachment surface M. And an abutting portion 82 to be in contact with. The length of the extending portion 81 is 10 mm or more. The contact portion 82 is screwed to the attachment surface M by a screw 9 through a screw hole 83 provided in the contact portion 82. The leg portion 8 is made of the same material as the cover portion 5. The leg portion 8 may be formed over the entire width of the peripheral edge 51 of the cover portion 5.

  The case where the power supply device 1 configured as described above is attached to the construction material will be described with reference to FIG. In this case, the cover portion 5 is attached to the base portion 4 by screwing the holding portion 7 to the held portion 45 with the screw 9, and the leg portion 8 is screwed to the mounting surface M with the screw 9. Thereby, the mounting surface 41 of the base portion 4 on which the power supply circuit 3 is mounted is arranged in a state of being separated from the mounting surface M.

  On the other hand, when the power supply circuit 3 is attached to the inside of the electric device, the held portion 45 is attached to the attachment surface M with the screw 9 without attaching the cover portion 5 to the base portion 4 as shown in FIG. The base part 4 is attached to the attachment surface M by screwing.

  According to the power supply device 1 of the present embodiment, when the power supply circuit 3 is attached to the construction material, the cover portion 5 is attached to the base portion 4 to ensure a distance between the power supply circuit 3 and the construction material. The power supply circuit 3 can be safely attached to the construction material. On the other hand, when the power supply circuit 3 is attached to the inside of the electric device, the power supply circuit is not attached by causing the base portion 4 to be directly attached to the inside of the device without attaching the cover portion 5 to the base portion 4. 3 can be mounted inside the device. Thus, since one power supply device 1 can cope with both the attachment to the construction material and the attachment inside the electric equipment, the versatility of the power supply device 1 can be enhanced.

  Further, the leg portion 8 is provided at the end portion in the longitudinal direction of the cover portion 5, so that the leg portion 8 is provided at the end portion in the short direction of the cover portion 5 (see FIG. 7 described later). The amount of material used can be reduced.

  Next, a power supply device according to a modification of the above embodiment will be described with reference to FIGS. In the power supply device 11, a flat lid 47 is provided so as to close the opening of the base portion 4, and an inner surface of the lid 47 is a mounting surface 41 for mounting the power supply circuit 3. By doing in this way, since the distance between the power supply circuit 3 and the attachment surface M of the construction material or the attachment surface M inside the electrical equipment can be increased, the construction material of the heat generated in the power supply circuit 3 or Heat transfer to electrical equipment can be reduced.

  Next, a power supply device according to another modification of the above embodiment will be described with reference to FIGS. As shown to Fig.6 (a), in the power supply device 12, the some holding | maintenance part 7 is provided, and two holding | maintenance parts 7a and 7b are provided in the example of a figure. These holding portions 7a and 7b are disposed asymmetrically with respect to the center C of the cover portion 5 when the cover portion 5 is viewed from a direction orthogonal to the mounting surface M (a direction from the near side to the far side in the drawing). In the illustrated example, they are arranged together on one side of a straight line L extending in the longitudinal direction through the center C. The held portion 45 of the base portion 4 is constituted by held portions 45a and 45b provided at positions corresponding to the holding portions 7a and 7b. In the power supply device 12, the power supply circuit 3 is not shown.

  As shown in FIG. 6B, when the cover part 5 is attached to the base part 4 in the correct orientation, the holding parts 7a and 7b and the held parts 45a and 45b engage with each other, and the cover 5 The part 5 and the base part 4 can be screwed together with screws 9 (not shown). On the other hand, as shown in FIG. 6C, when the cover portion 5 is mounted in the opposite direction with respect to the base portion 4, the holding portions 7a and 7b and the held portions 45a and 45b are mutually connected. The cover part 5 and the base part 4 cannot be screwed to each other without being engaged. As described above, by disposing the holding portions 7a and 7b asymmetrically with respect to the center C, it is possible to prevent the cover portion 5 from being attached to the base portion 4 in an incorrect direction.

  Next, a cover constituting a power supply device according to still another modification of the above embodiment will be described with reference to FIG. In the cover portion 5 of this modification, the leg portions 8 are provided over the entire width of the peripheral edge 51 of the cover portion 5 at each of both end portions in the short direction of the cover portion 5. By doing in this way, since the contact area of the leg part 8 and the attachment surface M becomes larger, the attachment strength to the attachment surface M of the cover part 5 can be made high.

  Next, a power supply device according to still another modification of the above embodiment will be described with reference to FIGS. As shown in FIG. 8, in the power supply device 13, when viewed from the direction D orthogonal to the mounting surface M, the cover portion 5 and the base portion 4 are rotationally symmetric bodies having the respective centers C as rotational axes, In the illustrated example, both are hexagonal. The leg portion 8 is provided on each of the side surfaces of the cover portion 5 that face each other. The base portion 4 has slits 43 and 44 at the hexagonal tops facing each other. Moreover, the cover part 5 and the base part 4 have a screw hole 71 (holding part 7) and a screw hole 46 (held part 45) on each side surface, and are screwed together by screws 9 (see FIG. 9). The

  As shown in FIG. 9, in the power supply device 13, by rotating the base portion 4 by 60 ° with respect to the cover portion 5, input from the output line 34 and the external commercial power supply is performed according to the place where the power supply device 13 is attached. The position of a line (not shown) can be changed. In addition, the shape of the cover part 5 and the base part 4 is not limited to a hexagonal shape but may be a rotationally symmetric body having a similar shape. For example, as shown in FIG. May be.

  In addition, the power supply device and the case for the power supply device according to the present invention are not limited to the above-described embodiment and its modifications, and various modifications are possible. For example, the mounting of the cover part to the base part is not limited to the above-described screwing, but a convex part is provided in the cover part, and a concave part is provided in the base part at a position corresponding to the convex part. You may be made by fitting a part and a recessed part mutually.

1, 11, 12, 13 Power supply device 21 Light emitting element (LED or organic EL light emitting panel)
22 Light emitting module (LED module or organic EL light emitting panel module)
3 Power supply circuit 4 Base part 41 Mounting surface 45 Held part 5 Cover part 51 Periphery (of cover part) 6 Power supply case 7 Holding part 8 Leg part C Center of cover part D Direction perpendicular to attachment surface M Mounting surface

Claims (8)

A power supply device case comprising a base portion on which a power supply circuit is mounted, and a cover portion that covers the base portion,
The base portion has a box shape, has a mounting surface on which the power supply circuit is mounted on an inner bottom surface, and is arranged so that an outer bottom surface faces a mounting surface for mounting the power supply circuit,
The cover portion includes a holding portion that detachably holds the base portion in a state where the mounting surface and the mounting surface are separated from each other, and a leg that extends from the periphery of the cover portion toward the mounting surface. and parts, the possess,
When the power supply circuit is attached to the construction material, the cover portion is attached to the base portion and the leg portion is attached to the attachment surface, and when the power supply circuit is attached to the inside of the electric device, the cover portion power device casing, wherein installing an additional said base portion without attaching to the base portion to the mounting surface.   The holding portion extends from the peripheral edge of the cover portion toward an outer direction perpendicular to the direction in which the leg portion extends, and the held portion extends in the same direction as the direction in which the holding portion extends from the base portion. The case for a power supply device according to claim 1, wherein the case is engaged with the power supply device case. The said holding | maintenance part is provided with two or more, and when the said cover part is seen from the direction orthogonal to the said attachment surface, it is arrange | positioned asymmetrically with respect to the center of the said cover part. The case for a power supply device according to 2. The cover part has a long shape when viewed from a direction orthogonal to the mounting surface,
The case for a power supply device according to any one of claims 1 to 3, wherein the leg portions are respectively provided at both end portions in the longitudinal direction of the cover portion. The cover part has a long shape when viewed from a direction orthogonal to the mounting surface,
The case for a power supply device according to any one of claims 1 to 3, wherein the leg portions are respectively provided at both end portions in the short direction of the cover portion.   The said cover part is a rotationally symmetric body which made the center of the said cover part the rotating shaft when it sees from the direction orthogonal to the said attachment surface, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The case for a power supply device according to item. Power apparatus characterized by comprising: the power supply device casing according, and a constant-current power supply circuit and said power supply circuit to any one of claims 1 to 6. Power apparatus characterized by comprising: the power supply device casing according, and a constant voltage power supply circuit and said power supply circuit to any one of claims 1 to 6.

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