JP7300426B2 - Power supply and lighting equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device used for lighting fixtures installed in a relatively narrow space above the ceiling.

For example, in a building made of reinforced concrete, a high ceiling is preferred in order to obtain spacious habitability. On the other hand, since lighting fixtures and the like are installed on the ceiling, it is common to install the ceiling plate below the bottom surface of the floor slab (or the bottom surface of the roof) on the upper floor. Therefore, the narrower the space between the ceiling plate and the bottom of the floor slab (hereafter referred to as the ceiling space in general terms), the higher the ceiling height (height to the ceiling plate) in the living space. It is possible and preferable. On the other hand, if the space above the ceiling is narrow, it may not be possible to install lighting equipment in the space above the ceiling.

Patent Literature 1 discloses an improvement technique related to a separate power source for a lighting fixture that is installed from below an embedding hole provided in a ceiling plate. If the height from the ceiling board to the upper floor is low and the ceiling space is narrow, the power supply unit may hit the bottom of the floor slab in the ceiling space or structures, etc., and may not be able to be inserted, making it impossible to install the power supply unit. , and by bending the power supply, it is possible to install a lighting fixture using this power supply even in a narrow space above the ceiling.

JP 2019-3894 A

Even if the power supply device is not as long as the conventional technology described in Patent Document 1, there are cases where it is desired to install the power supply device in a narrower space above the ceiling.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a power supply device such as a lighting fixture suitable for installation in a narrow ceiling, and a lighting device using such a power supply device. do.

The present invention is a power supply device comprising a power supply main body having a power supply bottom surface, a power supply front side surface, and a power supply top surface, and a terminal block having a terminal block bottom surface, wherein at least part of the terminal block bottom surface overlaps the power supply front side surface. , is a power supply installed so that other parts do not overlap. In other words, the bottom surface of the terminal block faces the same direction as the bottom surface of the power supply, but the bottom surface of the terminal block is oriented so as to overlap the front side surface of the power supply.

In the present invention, it is preferable that the length of the portion of the bottom surface of the terminal block that does not overlap with the front side surface of the power supply is longer than the length of the portion that overlaps with the front side surface of the power supply.

The present invention is a power supply device that can be passed through a circular embedding hole provided in a ceiling plate, and includes a power supply main body having a power supply bottom surface, a power supply front side surface, a power supply top surface, a power supply front corner surface, and a power supply rear corner surface. and a terminal block having a bottom surface of the terminal block, wherein at least a part of the bottom surface of the terminal block overlaps with the front side surface of the power supply, and the diagonal length of the power supply main body and the terminal block in a front view is the same as the buried terminal block. It is a power supply that is longer than the diameter of the insertion hole.

The present invention includes a support base having a front leg portion of the support base, a rear leg portion of the support base, and a power supply installation portion of the support base, a power supply main body including a power supply bottom surface, a power supply front side surface, and a power supply top surface, and a terminal block having a terminal base bottom surface. In the power supply device, the power supply bottom surface is installed on the upper surface of the support base power supply installation portion, at least a part of the terminal block bottom surface is installed on the side surface of the support base front leg, and the terminal block bottom surface is supported by the terminal block bottom surface. In the power supply device, the length of the portion installed on the side surface of the front leg portion of the stand is longer than the length of the portion not installed on the side surface of the front leg portion of the support stand.

The present invention includes a support base having a front leg portion of the support base, a rear leg portion of the support base, and a power supply installation portion of the support base, a power supply main body including a power supply bottom surface, a power supply front side surface, and a power supply top surface, and a terminal block having a terminal base bottom surface. wherein the power supply bottom surface is installed on the upper surface of the support base power supply installation portion, at least a part of the terminal block bottom surface is installed on the side surface of the support base front leg portion, and the support base front leg portion side surface is The side of the support base is longer than the side of the rear leg of the power supply.

In the present invention, the power supply main body further includes a power supply front corner surface, and the diagonal length obtained from the vertical and horizontal lengths of the power supply device in the front view is compared with the actual power supply front corner surface when viewed from the front. It is preferable that the diagonal length is 90% or less.

The present invention is a lighting device comprising the above-described power supply device and a lighting fixture embedded in a ceiling.

The present invention may be a lighting device in which the power supply device and the lighting fixture are integrated by a connecting plate.

With the above configuration, the power supply device according to the present invention can be installed in the ceiling space through the embedded hole in the ceiling board even in a narrow ceiling space. It is possible to secure a spacious interior space by increasing the height.

FIG. 2 is a front view of an installed state of the lighting fixture and the power supply device according to the first embodiment; 1A and 1B are a front view and a top view of a power supply device according to Embodiment 1; FIG. 4 is a front view of another power supply device according to Embodiment 1. FIG. 4 is a front view of another power supply device according to Embodiment 1. FIG. 4A and 4B are a front view and a bottom view for explaining installation of the power supply device according to the first embodiment; FIG. 4A and 4B are a front view and a top view of a power supply device according to a second embodiment; FIG. FIG. 8 is a front view of another power supply device according to the second embodiment; FIG. 8 is a front view of another power supply device according to the second embodiment; 8A and 8B are a front view and a bottom view for explaining installation of the power supply device according to the second embodiment; FIG. FIG. 11 is a front view of the power-supply integrated downlight according to the third embodiment in an installed state; 8A and 8B are a front view and a bottom view for explaining the installation of the power-supply integrated downlight according to Embodiment 3; FIG. FIG. 11 is a front view of the power-supply integrated downlight according to the fourth embodiment in an installed state;

<Embodiment 1>
<Basic configuration>
FIG. 1 shows a front view of an installed lighting fixture according to Embodiment 1 of the present invention. A power supply device 340, which is a separate power supply device that is not integrated with the downlight 301 and lighting equipment, is installed in the ceiling space between the floor slab bottom surface 391 and the ceiling plate 392. FIG. The downlight 301 is installed in a circular embedding hole 395 provided in the ceiling plate 392, and the power supply device 340 is installed on the ceiling plate 392 in the vicinity thereof. A power line 385 is inserted into the terminal block 360 of the power supply 340 , and direct current is applied from the power supply 340 to the downlight 301 through the cable 390 .

Downlight 301 includes frame 305 , cone 310 , COB LED 320 , heat sink 325 and mounting spring 330 .

The power supply device 340 needs to be installed in the ceiling space from below the circular embedded hole 395 provided for installing the downlight 301 .

As a power supply device, the power supply device 140 was first considered, the power supply device 240 was considered as an improvement plan, and the power supply device 340 was considered as a further improvement plan. The power supply device 340 will be described below, and other power supply devices will also be described.

<Power supply device 340>
The power supply device 340 includes a power supply body 350, a terminal block 360, a support base 370, and a wireless module 380, as shown in FIG. 2(a), which is a front view. As will be described later, when the power supply device 340 is passed through the embedding hole, the left side is the front side and the right side is the rear side because the left side is the front side and the right side is the rear side.

The power supply device 340 has a length of 178 mm, and in the side view (front view) shown in _FIG . ₃ is 60 mm and the diagonal length _D3 is 80 mm (ignoring the corner chamfer on the power supply top surface 355). Since _D3 is 80 mm, it seems that it cannot pass through the embedding hole 395 with a diameter of 75 mm.

<Power supply body>
The power supply body 350 has a power supply front corner surface 351, a power supply rear corner surface 352, a power supply front side surface 353, a power supply rear side surface 354, a power supply top surface 355, and a power supply bottom surface 356, and has a trapezoidal front shape. As will be described later, by providing a power supply front corner surface 351 and a power supply rear corner surface 352 to eliminate corners, the power supply can be easily inserted into a narrow space above the ceiling.

A wireless module 380, which is a wireless receiver for controlling output, is attached to the power supply main body 350 (removable). Further, as shown in FIG. 2(b), a cable 390 for outputting power for driving the LED is protruded from the power supply main body.

<Support stand>
The support base 370 is formed by bending each point of ABCDEF shown in the front view (actually each line because there is depth), and the range from C to D is the support base power supply. The installation portion 371 , the range from A to C is called a support base front leg portion 372 , and the range from D to F is called a support base rear leg portion 373 . It should be noted that the bending is not limited to the points B to E, and other bending shapes may be provided, and some may be omitted.

The power source main body 350 is installed on the upper surface of the CD portion of the support base 370 (support base power supply installation portion 371).

As shown in the plan view of FIG. 2(c), the support base 370 has a support base front leg hole 372H and a support base rear leg hole 373H. can be fixed to

<Terminal block>
When viewed from the front, the terminal block 360 has a terminal block bottom surface 363 that is a long side and a terminal block side surface 364 that is a short side (the terminal block bottom surface 363 is longer than the terminal block side surface 364). The terminal block 360 is installed so that the terminal block bottom surface 363 overlaps the front leg side surface 372 S of the front leg portion 372 of the support block (the BC portion of the support block 370 ) and the front side surface 353 of the power source. The distance between BC of the support base 370 (the length of the front leg portion side surface 372S of the support base) is longer than the distance between DE of the support base 370 (the length of the rear surface of the front leg portion of the support base 373S). Along with this, in order to fix the support base 370 to the upper surface of the ceiling plate, which is the installation surface, the AB part and the EF part of the support base 370 are formed so as to be on a straight line.

A line segment PQ, which is a portion of the terminal block bottom surface 363 in contact with the support base front leg side surface 372S, is a line of a portion not in contact with the support base front leg side surface 372S (a portion in contact with or close to the power source front side surface 353). It is longer than the segment QR and has a relation of line segment PQ>line segment QR. As a result, the protrusion amount 361L of the corner portion 361 of the terminal block 360 (the distance from the line extending the front corner surface 351 of the power supply main body) can be shortened. In addition, the turning radius 340L of the power supply from the midpoint of the lower surface of the power supply main body 350 to the corner 361 of the terminal block 360 is relatively small. The radius of rotation of the power supply is not limited to the distance from the midpoint of the bottom surface because the center of rotation moves on the bottom surface when the power supply shown in FIG. 5 is inserted into the embedding hole. is represented by the distance of

A terminal hole 365 for inserting a power line into the terminal block is provided on the front side in FIG. 2(a). A screw tip 367 for fastening the terminal block 360 to the support base front leg side surface 372S penetrates through the support base front leg portion.

<Power supply device 240>
The power supply device 240 has the same length of both legs of the power supply device 340 (support base front leg part 272 and support base front leg part 273).

The power supply _device 240 in the side view (front _view ) _shown in FIG. (ignoring the chamfer of the

As shown in the front view of FIG. 3( a ), the power supply device 240 includes a power supply body 250 , a terminal block 260 , a support base 270 and a wireless module 280 .

The power supply main body 250 has a power supply front corner surface 251 and a power supply rear corner surface 252, and has a trapezoidal front shape. This facilitates the insertion of the power supply into the narrow space above the ceiling.

<Power supply body>
The power supply main body 250 has a power supply front corner surface 251, a power supply rear corner surface 252, a power supply front side surface 253, a power supply rear side surface 254, a power supply top surface 255, and a power supply bottom surface 256, and has a trapezoidal front shape. As will be described later, by providing a power supply front corner surface 251 and a power supply rear corner surface 252 to eliminate corners, the power supply can be easily inserted into a narrow space above the ceiling.

A wireless module 280, which is a wireless receiver for controlling output, is attached to the power supply body 250 (removable).

<Support stand>
The support base 270 is formed by bending each point of ABCDEF shown in the front view (actually each line because of the depth), and the range from C to D is the support base power supply. The installation portion 271 , the range from A to C is called a support base front leg portion 272 , and the range from D to F is called a support base front leg portion 273 . It should be noted that the bending is not limited to the points B to E, and other bending shapes may be provided, and some may be omitted.

The power supply body 250 is installed on the upper surface of the support base power supply installation portion 271 of the support base 270 .

The terminal block 260 is installed such that the terminal block bottom surface 263 overlaps the support block front leg portion side surface 272S of the support block front leg portion 272 . A terminal hole 265 for inserting the power line 385 into the terminal block is provided on the rear side of the figure. Therefore, it is possible to prevent the electric power line 385 shown in FIG. 1 from protruding to the floor slab bottom surface 391 side and becoming an obstacle when the power supply device 240 is inserted into the ceiling space. The distance between BC (the length of the front leg side surface 272S of the support base) and the distance between DE (the length of the front leg side surface 273S of the support base) are equal. Alternatively, the line segment PQ on the right side of the drawing of the terminal block 260 is the length of the portion in contact with the support base front leg side surface 272S, the line segment QR is the length of the portion in contact with the power supply front side surface 253 of the power supply body 250, and in the power supply device 240, the line segment The relationship is PQ<line segment QR. A projection amount 261L of the corner portion 261 of the terminal block 260 is a distance from a line extending from the power supply front corner surface 251 of the power supply main body. In addition, the power source turning radius 240L from the lower surface midpoint of the power source body 250 to the corner portion 261 of the terminal block 260 is slightly longer than the power source turning radius 340L of the power source device 340 .

<Terminal block>
When viewed from the front, the terminal block 260 has a terminal block bottom surface 263 that is a long side and a terminal block side surface 264 that is a short side. The terminal block bottom surface 263 is installed so as to overlap with the support block front leg portion side surface 272 S (the BC portion of the support block 370 ) of the support block front leg portion 272 and the power source front side surface 253 . The distance between BC of the support base 270 (the length of the front leg side surface 372S of the support base) and the distance between DE of the support base 270 (the length of the front leg side surface 273S of the support base) are the same.

A line segment PQ, which is a portion of the terminal block bottom surface 263 in contact with the support base front leg side surface 372S, is a line of a portion not in contact with the support base front leg side surface 372S (a portion in contact with or close to the power source front side surface 353). It is longer than the segment QR and has a relation of line segment PQ<line segment QR. A protrusion amount 261L of the corner 261 of the terminal block 260 (the distance from the line extending the front corner surface 251 of the power supply body) is slightly longer than that of the power supply device 340 . A power supply turning radius 240L from the middle point of the lower surface of the power supply body 250 to the corner 261 of the terminal block 260 is also slightly longer than that of the power supply device 340 .

A terminal hole 265 for inserting a power line into the terminal block is provided on the front side in FIG. 3(a).

<Power supply device 140>
The power supply device 140 has a terminal block 160 arranged on a support base front leg portion 172 .

As shown in the front view of FIG. 4A , the power supply device 140 includes a power supply body 150 , a terminal block 160 , a support base 170 and a wireless module 180 .

In the side view (front view) shown in FIG. 4B, the power supply device 140 has a length _Y1 of 44 mm, a length _Z1 of 60 mm, and a diagonal length _D1 of 74 mm. (ignoring the chamfer of the

<Power supply body>
The power supply body 150 has a power supply front corner surface 151, a power supply rear corner surface 152, a power supply front side surface 153, a power supply rear side surface 154, a power supply top surface 155, and a power supply bottom surface 156, and has a trapezoidal front shape. As will be described later, by providing a power supply front corner surface 151 and a power supply rear corner surface 152 to eliminate corners, the power supply unit can be easily inserted into a narrow ceiling space.

A wireless module 180, which is a wireless receiver for controlling output, is attached to the power supply main body 150 (removable).

<Support stand>
The support base 170 is formed by bending each point of AA2-A3-BCDEF shown in the front view (actually each line because there is depth), and is formed in the range from C to D. is called a support base power supply installation portion 171, the range from A to C is called a support base front leg portion 172, and the range from D to F is called a support base front leg portion 173. The bending is not limited to points A2 to E, and other bending shapes may be provided, or some may be omitted.

The power supply main body 150 is installed on the upper surface of the CD portion of the support base 170 (support base power supply installation portion 171).

<Terminal block>
When viewed from the front, the terminal block 160 has a terminal block bottom surface 163 that is a long side and a terminal block side surface 164 that is a short side. The terminal block side surface 164 is installed so as to overlap with the support block front leg portion side surface 172 S (the BC portion of the support block 170 ) of the support block front leg portion 172 and the power source front side surface 153 . Since terminal block bottom surface 163 is fixed to support base 170 with screws (screw tip 167 is shown), a step between A2 and A3 is provided in support base front leg portion 172 in order to secure a space for screw tip 167 . The sum of the A2-A3 distance of the support base front leg 172 and the distance between BC (the length of the support base front leg side 172S) and the DE distance (the length of the support base front leg side 173S) are the same. be.

A line segment RS, which is a portion of the terminal block side surface 164 in contact with the support base front leg side surface 172S, is a line of a portion not in contact with the support base front leg side surface 172S (a portion in contact with or close to the power source front side surface 153). longer than the segment ST (the line segment RS>the line segment ST can also be established depending on the length of the terminal block side surface 164, etc.). Projection amount 161L of the corner 161 of the terminal block 160 (distance from the line extending the front corner surface 151 of the power supply main body), power supply turning radius 140L from the middle point of the lower surface of the power supply main body 150 to the corner 161 of the terminal block 160 is slightly shorter than the hypothetical example in which the terminal block is in the CD section (the example in which the line segment RS is zero).

A terminal hole 165 for inserting a power line into the terminal block is provided on the front side in FIG. 3(a).

<Inserting the power supply into the ceiling space>
5(a1), (a3), and (a4) are front cross-sectional views of the ceiling space for explaining the insertion of the power supply device 340, FIG. 5(a2) is a plan view seen from the bottom surface of the ceiling space, (b1) and (b3) are front cross-sectional views for explaining the insertion of the power supply device 140 into the ceiling space, and FIG. 5(b2) is a plan view seen from the lower surface of the ceiling space. The ceiling space includes a floor slab bottom surface 391, a ceiling plate 392, and a circular embedding hole 395 (the center axis 395A of the circular embedding hole). Spacing = 80 mm, circular embedding hole diameter = 75 mm.

In FIGS. 5(a3) and (a4), an embedded hole passage region 396, which is a portion through which the width of the power supply device 340 passes, of the embedded hole 395 of the ceiling plate is indicated by cross hatched lines. From this, it can be seen that the width of the embedding hole passage area 396 through which the power source main body 350 having a width of 60 mm passes is only 44 mm in the embedding hole diameter of 75 mm.

As shown in FIG. 5(a1), it is first necessary to pass the power supply device 340 through the embedding hole 395 having a diameter of 75 mm. However, the power supply device 340 has a width of 60 mm, a height of 53 mm, and a diagonal length of 80 mm. Therefore, using the power supply front corner surface 351 of the power supply main body, turn the power supply unit 340 slightly clockwise in FIG. ) step.

On the other hand, the power supply device 140 has a width of 60 mm, a height of 44 mm, and a diagonal length of 74 mm.

In FIG. 5( a 3 ), the power supply rear corner surface 352 is about to pass through the embedding hole passage region 396 of the embedding hole 395 while the tip of the power supply device 340 is in contact with the bottom surface 391 of the floor slab. Subsequently, by rotating the power supply device 340 counterclockwise as shown in FIG. The power supply device 340 can be installed above the ceiling.

FIG. 5(b3) is a diagram illustrating an inserted state of the power supply device 140. As shown in FIG. With the tip of the power supply unit 140 abutting the bottom surface 391 of the floor slab, the power supply rear corner surface 152 slightly enters the embedding hole passing area 396 of the embedding hole 395 . However, even if an attempt is made to rotate the power supply device 140 counterclockwise in this state, the rear corner surface 152 of the power supply collides with the embedding hole 395 and cannot pass through. It should be noted that the power supply device 140 can be passed through the embedding hole 395 if the height of the ceiling space is increased beyond 80 mm.

<Summary of Embodiment 1>
In summary, the power supply units 340, 240, and 140 have a trapezoidal power supply main body instead of a rectangular shape when viewed from the front, and the terminal block is positioned below the power supply main body position. The influence of the corners of the power supply body and the corners of the terminal block can be reduced. The power supply devices 340 and 240 can be installed in a narrow ceiling space by placing the bottom of the terminal block, which is the long side, on the side surface of the power supply main body. Furthermore, in the power supply device 340, since the front leg of the support base is extended and the terminal block is placed as low as possible, the radius of rotation of the power supply can be shortened when the power supply device is rotated. It becomes possible.

<Embodiment 2>
In the second embodiment, the power supply units 640, 540, and 440 are provided with a front corner surface so that the distance from the top surface of the ceiling plate 692 to the bottom surface 691 of the floor slab when inserted into the ceiling in FIG. there is

<Power supply device 640>
Since the power supply device 640 shown in FIG. 6 has many points in common with the power supply device 340, the same reference numerals as those of the power supply device 340 are used except for the reference numerals related to the power supply main body 650, and descriptions other than the power supply main body 650 are omitted.

<Power supply body>
The power supply main body 650 has a power supply front corner surface 651, a power supply rear corner surface 652, a power supply front side surface 653, a power supply rear side surface 654, a power supply top surface 655, and a power supply bottom surface 656, and has a trapezoidal front shape. By providing a power supply front corner surface 651 and a power supply rear corner surface 652 and eliminating corners, it is easy to insert the power supply unit into a narrow space above the ceiling.

Further, the power supply main body is provided with a power supply front corner surface 657 when viewed from the front. As a result, when viewed from the front, the height of the power supply device 640 (between the point B of the support base 370 and the upper surface 655 of the power supply) _Y6 is 53 mm, the length _Z6 is 60 mm, and the height _Y6 is the length and the length _Z6 is 60 mm. While the diagonal length _D6 of the horizontal rectangle is 80 mm, the actual diagonal length _E6 in front view is 67 mm (84% of _D6 ), which is larger than the embedding hole diameter of 75 mm. small.

The actual diagonal length _E6 is preferably 90% or less, more preferably 85% or less, of the diagonal length _D6 .

<Power supply device 540>
Since the power supply device 540 shown in FIG. 7 has many points in common with the power supply device 240, the same reference numerals as those of the power supply device 340 are used except for the reference numerals related to the power supply main body 550, and descriptions other than the power supply main body 550 are omitted.

<Power supply body>
The power supply main body 550 has a power supply front corner surface 551, a power supply rear corner surface 552, a power supply front side surface 553, a power supply rear side surface 554, a power supply top surface 555, and a power supply bottom surface 556, and has a trapezoidal front shape. By providing a power supply front corner surface 551 and a power supply rear corner surface 552 and eliminating corners, it is easy to insert the power supply unit into a narrow ceiling space.

Further, the power supply main body is provided with a power supply front corner surface 557 when viewed from the front. As a result, when viewed from the front, the height _Y5 of the power supply device 540 is 44 mm, the length _Z5 is 60 mm, and the diagonal length _D5 of a rectangle having the height _Y5 as the length and the length _Z5 as the width is 74 mm. On the other hand, the actual diagonal length _E5 in the front view of the power supply device 540 is 60 mm, which is smaller than the embedding hole diameter of 75 mm, and _E5 is 81% of the diagonal length _D5 .

<Power supply device 440>
Since the power supply device 440 shown in FIG. 8 has many points in common with the power supply device 140, the same reference numerals as those of the power supply device 140 are used except for the reference numerals related to the power supply main body 450, and descriptions other than the power supply main body 450 are omitted.

<Power supply body>
The power supply main body 450 has a power supply front corner surface 451, a power supply rear corner surface 452, a power supply front side surface 453, a power supply rear side surface 454, a power supply top surface 455, and a power supply bottom surface 456, and has a trapezoidal front shape. By providing a power supply front corner surface 451 and a power supply rear corner surface 452 and eliminating corners, it is easy to insert the power supply unit into a narrow space above the ceiling.

Further, the power supply main body is provided with a power supply front corner surface 457 when viewed from the front. As a result, when viewed from the front, the height _Y4 of the power supply device 440 is 44 mm, the length _Z4 is 60 mm, and the diagonal length D4 of _the rectangle with the height _Y4 as the length and the length _Z4 as the width is 74 mm. On the other hand, the actual diagonal length _E4 in the front view of the power supply device 440 is set to 60 mm, which is smaller than the embedding hole diameter of 75 mm. Note that _E4 is 81% of the diagonal length _D4 .

<Inserting the power supply into the ceiling space>
9(a1) and (a3) are front cross-sectional views of the ceiling space for explaining the insertion of the power supply device 640, FIG. 9(a2) is a plan view seen from the bottom surface of the ceiling space, FIG. (b3) is a front cross-sectional view for explaining the insertion of the power supply device 440 into the same ceiling space, and FIG. 9(b2) is a plan view seen from the lower surface of the ceiling space. The ceiling space includes a floor slab bottom surface 691, a ceiling plate 692, and a circular embedded hole 695, the center axis 695A of which is also illustrated.

Here, in the ceiling space, the thickness of the ceiling plate 692 = 35 mm, the distance from the top surface of the ceiling plate to the floor slab bottom surface 691 = 70 mm (this point is different from the first embodiment), and the diameter of the circular embedding hole 695 = 75 mm. be.

As shown in FIG. 9(a1), it is first necessary to pass the power supply device 640 through the embedding hole 695 having a diameter of 75 mm. The power supply device 640 has a width of 60 mm and a height of ₅₃ mm. The hole passage area 396 can be passed straight through.

On the other hand, the power supply device 440 has a width of 60 mm and a height of ₄₄ mm. It can be passed straight through the embedding hole 395 with a margin.

In each drawing of FIG. 9, an embedding hole passage area 696, which is a portion through which the width of the power supply device 640 passes, of the embedding hole 695 of the ceiling plate is indicated by cross hatching. From this, it can be seen that the width of the embedding hole passage area 696 through which the power supply main body 650 having a width of 60 mm passes is only 44 mm in the embedding hole diameter of 75 mm.

In FIG. 9( a 3 ), the power supply rear corner surface 652 is about to pass through the embedding hole passage region 696 of the embedding hole 695 while the tip of the power supply device 640 is in contact with the bottom surface 691 of the floor slab. Subsequently, by rotating the power supply device 640 counterclockwise, the power supply rear corner surface 652 can be brought to the upper surface of the ceiling plate 692, and the power supply device 640 can be installed in the ceiling space.

FIG. 9(b3) is a diagram for explaining a state in which the power supply device is inserted when the power supply device 640 is replaced with the power supply device 440. FIG. With the tip of the power supply 440 abutting the floor slab bottom surface 691 , the power supply rear corner surface 452 is about to enter the embedding hole passage area 396 of the embedding hole 695 . However, even if the power supply device 440 were to be rotated counterclockwise in this state, it would collide with the embedding hole passing area and could not pass through. It should be noted that if the height of the ceiling space is not 70 mm but is further increased, the power supply device 440 can be installed in the ceiling space.

<Embodiment 3>
<Basic configuration>
FIG. 10 shows a front view of an installed state of a power-supply integrated downlight 700, which is a lighting fixture of this embodiment. A power supply integrated downlight 700 consisting of a downlight main body 701 , a power supply main body 750 , a terminal block 760 and a connecting plate 775 is installed in the ceiling between the floor slab bottom surface 391 and the ceiling plate 392 . The downlight main body 701 is installed in a circular embedding hole 395 provided in the ceiling plate 392, and the power supply main body 750 is not installed in the ceiling plate 392 (the connection plate 775 is bent by its own weight and is in contact with the ceiling plate 392). may be used). A power line 785 is inserted into the terminal block 760 , and direct current is applied to the downlight body 701 from the power supply body 750 through the cable 790 .

The downlight body 701 comprises a frame 705 , a cone 710 , a COB LED 720 , a heat sink 725 and a mounting spring 730 .

A connecting plate 775 is fixed to the upper surface of the downlight main body 701, and a power supply main body 750 and a terminal block 760 are installed thereon.

The power supply main body 750 has a power supply front corner surface 751, a power supply rear corner surface 752, a power supply front side surface 753, a power supply rear side surface 754, a power supply top surface 755, and a power supply bottom surface 756, and has a trapezoidal front shape. By providing a power supply front corner surface 751 and a power supply rear corner surface 752 and eliminating corners, it is easy to insert the power supply unit into a narrow space above the ceiling.

The power source body 750 and the terminal block 760 (referred to as the power source device 740) are 53 mm high and 60 mm wide when viewed from the front, and the diagonal length is 80 mm, similar to the power source device 340. However, as will be described later, it is 75 mm. A circular mounting hole of diameter can be passed through.

The connecting plate 775 is formed by bending the point C of BCDEF, the range from B to C is a connecting plate terminal block portion 775BC, and the range from C to D is a connecting plate power supply portion 775CD. , D to E is called a connecting plate relay portion 775DE, and the range from E to F is called a connecting plate downlight portion 775EF. In particular, it is preferable that the connection plate relay portion 775DE is made flexible as necessary by providing elasticity or a bendable structure.

In the terminal block 760, of the terminal block bottom surface 763, the lower side of the imaginary surface 756V (terminal block bottom surface 763PQ) extending from the power supply bottom surface 756 overlaps with the connecting plate terminal block portion 775AB, and the upper side of the imaginary surface 756V (terminal block bottom surface 763QR). is installed so as to overlap the front side surface 753 of the power supply. A terminal hole 765 for inserting a power line into the terminal block is provided on the rear side of the drawing. The length of the terminal block bottom surface 763PQ is longer than the length of the terminal block bottom surface 763QR, and the relationship of line segment PQ>line segment QR is established. This facilitates insertion into narrow ceiling spaces, as described for power supply 340 .

<Inserting a power supply integrated downlight into the ceiling space>
The installation method of the power supply integrated downlight 700 is similar to the installation method of the power supply 340, but since the power supply main body 750 and the downlight main body 701 are connected, when the power supply main body 750 is moved, the downlight is It is necessary to consider whether or not the main body 701 hits an obstacle.

11(a1), (a3), and (a4) are front cross-sectional views of the ceiling space for explaining the insertion of the power supply integrated downlight 700, and FIG. 11(a2) is a plan view seen from the bottom surface of the ceiling space. is. The ceiling space includes a floor slab bottom surface 391, a ceiling plate 392, and a circular embedding hole 395, the center axis 395A of which is also illustrated.

In the illustrated ceiling space, the thickness of the ceiling plate is 35 mm, the distance from the top surface of the ceiling plate to the bottom surface of the floor slab is 80 mm, and the diameter of the circular embedding hole is 75 mm. In FIGS. 11(a1), (a2) and (a3), an embedding hole passage area 396, which is a portion through which the width of the power supply integrated downlight 700 passes, is indicated by cross hatching in the embedding hole 395 of the ceiling plate. From this, it can be seen that the width of the embedding hole passage area 396 through which the power source main body 750 having a width of 60 mm passes is only 44 mm in the embedding hole diameter of 75 mm.

As shown in FIG. 11(a1), it is first necessary to pass the terminal block 760 and the power supply main body 750 through the embedding hole 395 having a diameter of 75 mm. However, since the size of the terminal block 760 and the power supply body 750 in front view is 60 mm in width, 53 mm in height, and 80 mm in diagonal length, it is possible to pass straight through the embedding hole passage area 396 in the plan view of FIG. 11(a2). can't Therefore, using the power supply front corner surface 751 of the power supply main body, the power supply integrated downlight 700 is slightly turned clockwise in FIG. Proceed to step 11(a3).

In FIG. 11( a 3 ), the power supply rear corner surface 352 is about to pass through the embedding hole passing region 396 of the embedding hole 395 while the tip of the power supply integrated downlight 700 is in contact with the bottom surface 391 of the floor slab. Subsequently, by rotating the power supply integrated downlight 700 counterclockwise as shown in FIG. 700 can be installed in the ceiling.

In FIG. 11(a4), the power-supply integrated downlight 700 is rotated and the downlight main body 701 is installed in the embedding hole 395, and the installation of the power-supply integrated downlight 700 is completed.

<Embodiment 4>
FIG. 12 shows a front view of a power-supply integrated downlight 800, which is a lighting fixture of the present embodiment, in an installed state. Some of the members common to the power-supply integrated downlight 700 are given the same reference numerals. A power supply integrated downlight 800 consisting of a downlight main body 801 , a power supply main body 750 , a terminal block 760 , a fixing plate 876 and a connecting plate 875 is installed in the ceiling between the floor slab bottom surface 391 and the ceiling plate 392 .

The downlight main body 801 is installed in a circular embedding hole 395 provided in the ceiling plate 392, and the power supply main body 750 is not installed in the ceiling plate 392 (the connection plate 875 is bent by its own weight and is in contact with the ceiling plate 392). may be used). A power line 785 is inserted into the terminal block 760 , and direct current is applied from the power source body 750 to the downlight body 801 through the cable 890 .

The downlight body 801 comprises a frame 805 , a cone 810 , a COB LED 820 , a heat sink 825 and a mounting spring 830 .

A connecting plate 875 is fixed to the upper surface of the downlight body 801 , and the connecting plate 875 is fixed to the power source rear corner surface 752 and the power source upper surface 755 .

A fixing plate 876 is provided for fixing the terminal block bottom surface 763 and the power supply bottom surface 756 .

Since the power supply device of the power supply integrated downlight 840 is the same as the power supply device 740 of the power supply integrated downlight 700, it is passed through a circular embedded hole with a diameter of 75 mm in the same way as the power supply device 740. It can be installed in the ceiling space with a height of 35 mm and a distance from the top surface of the ceiling plate to the bottom surface of the floor slab of 80 mm.

<Modified examples and others>
Although the embodiment of the lighting fixture according to the present invention has been described above, the illustrated power supply device can also be configured as follows, and the present invention is not limited to the power supply device as shown in the above embodiment. Of course not.

(1) The power supply device of the embodiment is a separate power supply for ceiling-mounted lighting fixtures, but the power supply device of the present invention is not limited to lighting fixtures, but also speakers, air cleaners, projectors, fans, wireless It can also be used as a power source for various electrical equipment installed on the ceiling, such as repeaters, cameras, and air conditioners.In addition, lighting fixtures with speakers, lighting fixtures with air purifiers, and lighting fixtures with projectors that integrate these fixtures and lighting fixtures. It can also be used as a power supply for fixtures, lighting fixtures with fans, and lighting fixtures with cameras.

(2) In the power supply devices 240, 340, 540, 640, the bottom surface of the terminal block need not be in contact with the front side surface of the power supply, and there may be a space therebetween.

(3) The radius of rotation of the power supply has been described as the distance from the midpoint of the bottom surface of the power supply main body to the corner of the terminal block. For example, in FIG. 5(a1), the fulcrum of rotation is slightly below the midpoint of the lower surface of the power supply main body, and in FIG. 5(a3), the fulcrum of rotation has moved further downward. In other words, the fact that the midpoint of the lower surface of the power source is used as a reference when considering the radius of rotation of the power source is an example for simplifying the explanation, and it is necessary to consider that the fulcrum of rotation actually moves.

(4) The shape of the embedding hole in the ceiling plate is not limited to circular, and may be square or rectangular.

(5) The power supply front corner surface is intended to shorten the length of the actual diagonal line with respect to the diagonal line of the imaginary rectangle consisting of the vertical and horizontal lengths in the front view, and the length of the actual diagonal line is It is preferably 90% or less, more preferably 85% or less, of the diagonal length of the virtual rectangle. Further, when the length of the diagonal line of the virtual rectangle is equal to or greater than the diameter of the circular embedding hole, it is preferable that the length of the actual diagonal line is less than the diameter of the embedding hole.

(6) Although the power supply front corner surface, the power supply rear corner surface, and the power supply front corner surface of the power supply body have been described as flat surfaces, they may be curved surfaces.

(7) The power supply device of the present invention receives AC power supplied from an AC power line and outputs DC power suitable for driving LEDs. It may be a lighting device such as a ballast for a fluorescent lamp.

It should be noted that the above-described embodiment disclosed this time is an example in all respects and does not serve as a basis for restrictive interpretation. Therefore, the technical scope of the present invention is not to be interpreted only by the above-described embodiments, but is defined based on the claims. In addition, all changes within the meaning and range of equivalents to the scope of claims are included.

301 Downlights 305, 705, 805 Frames 310, 710, 810 Cone 320, 720, 820 COB type LED
325, 725, 825 heatsinks,
330, 730, 830 Mounting springs 140, 240, 340, 440, 540, 640, 740 Power supply devices 140L, 240L, 340L Power supply turning radius 150, 250, 350, 450, 550, 650, 750 Power supply bodies 151, 251, 351 , 451, 551, 651, 751 Power supply front corner surfaces 152, 252, 352, 452, 552, 652, 752 Power supply rear corner surfaces 153, 253, 353, 453, 553, 653, 753 Power supply front surfaces 154, 254, 354 , 454, 554, 654, 754 Power supply rear side 155, 255, 355, 455, 555, 655, 755 Power supply top 156, 256, 356, 456, 556, 656, 756 Power supply bottom 756V Virtual plane 457, 557, 657 Power supply Front corner surfaces 160, 260, 360, 760 Terminal blocks 161, 261, 361 Corners 161L, 261L, 361L Projection amounts 163, 263, 363, 763 Terminal block bottom surfaces 164, 264, 364, 764 365 Terminal holes 167, 367 Screw tips 170, 270, 370 Support bases 171, 271, 371 Support base power supply installation parts 172, 272, 372 Support base front leg parts 172S, 272S, 372S Support base front leg side surface 372H Support base front leg hole 173, 273, 373 Support table rear legs 173S, 273S, 373S Support table rear leg side 373H Support table rear leg holes 180, 280, 380 Wireless modules 385, 785 Power lines 390, 790, 890 Cables 391, 691 Floor Slab bottom surfaces 392, 692 Ceiling plates 395, 695 Embedded holes 396, 696 Embedded hole passage areas 395A, 695A Central axes 700, 800 Power supply integrated downlights 701, 801 Downlight bodies 775, 875 Connecting plate 876 Fixing plate

Claims (7)

a power supply body comprising a power supply bottom surface, a power supply front side surface and a power supply top surface;
A power supply device comprising a terminal block having a terminal block bottom surface,
At least part of the bottom surface of the terminal block overlaps the front side surface of the power supply, and is installed so that other parts do not overlap,
The length of the portion of the bottom surface of the terminal block that does not overlap with the front side surface of the power supply is longer than the length of the portion that overlaps with the front side surface of the power supply,
Power supply. A power supply device that can pass through a circular embedded hole provided in a ceiling plate,
a power supply body comprising a power supply bottom surface, a power supply front side surface, a power supply top surface, a power supply front corner surface, and a power supply rear corner surface;
A terminal block having a terminal block bottom surface,
At least part of the bottom surface of the terminal block is installed so as to overlap the front side surface of the power supply,
A power supply device, wherein a diagonal length of the power supply main body and the terminal block in a front view is longer than a diameter of the embedding hole. a support base having a support base front leg portion, a support base rear leg portion, and a support base power supply installation portion;
a power supply body comprising a power supply bottom surface, a power supply front side surface and a power supply top surface;
A power supply device comprising a terminal block having a terminal block bottom surface,
The bottom surface of the power supply is installed on the top surface of the support base power supply installation part,
At least part of the bottom surface of the terminal block is installed on the side surface of the front leg of the support block,
A power supply device, wherein a length of a portion of the bottom surface of the terminal block installed on the side surface of the front leg portion of the support base is longer than a length of a portion not installed on the side surface of the front leg portion of the support block. a support base having a support base front leg portion, a support base rear leg portion, and a support base power supply installation portion;
a power supply body comprising a power supply bottom surface, a power supply front side surface and a power supply top surface;
A power supply device comprising a terminal block having a terminal block bottom surface,
The bottom surface of the power supply is installed on the top surface of the support base power supply installation part,
At least part of the bottom surface of the terminal block is installed on the side surface of the front leg of the support block,
The power supply device, wherein the side surface of the front leg portion of the support base is longer than the side surface of the rear leg portion of the support base. the power supply body further comprising a power supply front corner surface,
5. The method according to any one of claims 1 to 4, wherein the actual diagonal length including the power supply front corner surface when viewed from the front is 90% or less of the diagonal length obtained from the vertical and horizontal lengths of the power supply device when viewed from the front. The power supply device according to any one of claims 1 to 3. A lighting device comprising the power supply device according to any one of claims 1 to 5 and a lighting fixture embedded in a ceiling. 7. The lighting device according to claim 6, wherein said power supply device and said lighting fixture are integrated by a connecting plate.

Images