JP3079409B2 - Heat dissipation structure of lighting equipment controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a heat dissipation structure of a lighting apparatus controller in which a lighting apparatus controller is embedded in an embedded portion such as a ceiling which is insulated by a blowing or matting method.

[0002]

2. Description of the Related Art Conventionally, in the case where a controller for a lighting fixture is buried in a buried portion such as a ceiling which is thermally insulated by a blowing or matting method, the controller is mounted in a box which is locked and fixed in the ceiling. Since the interior is fixed while the front is covered by the cover, the heat generated from the controller is easily trapped in the closed space formed by the cover and the box,
A device that has a heat-dissipating part formed by arranging a plurality of grooves on the outer upper surface of a box that is locked and fixed in a buried part such as a ceiling because it will adversely affect the semiconductor that constitutes the controller Is common.

[0003]

However, in the above-mentioned conventional apparatus, the controller is locked and fixed in a ceiling or the like, and the upper part of the box for mounting and fixing the controller is located outside the box.
In order to prevent the heat generated by the controller itself from being trapped in the closed space formed by the cover and the box and adversely affecting the controller using semiconductors, a heat radiation part formed by arranging multiple grooves is provided. In the case of the above, the heat radiating part provided on the upper outside of the box locked and fixed in the ceiling etc. will radiate heat into the ceiling etc. which is thermally insulated by blowing or mat method, but the inside of the ceiling etc. Because heat insulation is applied by blowing or mat method, the heat generated by the controller itself cannot be sufficiently dissipated to the ceiling, etc., so only a small-capacity controller that generates less heat is used. And cannot be applied to a high-power controller.

[0004] Therefore, in order to efficiently dissipate heat generated from a controller which is installed and fixed in a box buried in a ceiling or the like and to apply it to a large-capacity controller. The radiator plate holding the radiator plate has a laminated structure composed of three plate bodies, and a vent hole communicating with the cover direction so as to face a controller which is fixed by forming a fixed gap on the radiator plate. It has been proposed to arrange them,
In this case, the heatsink that conducts and dissipates the heat generated by the controller has a laminated structure composed of multiple plates, and covers it so as to face the controller fixed to this heatsink. Since the ventilation holes are provided so as to communicate with each other in the direction, the heat generated from the controller is efficiently dissipated from the laminated radiator plate toward the cover, and the radiator plate is arranged in the radiator plate. Convection of air occurs in the closed space formed by the cover and the box due to the pores, and it is possible to sufficiently cool the heat generated by the controller. Although it can prevent the adverse effects of heat, it can efficiently conduct the heat generated by the controller and The radiating plate that is dissipated to the ceiling is fixed to the outer wall surface of the ceiling, so if this radiating plate has a laminated structure composed of multiple plates, the overall height of the radiating plate increases, The height of the cover, which is locked and fixed to the box, protrudes from the outer wall surface such as the ceiling, which greatly reduces the appearance, and has a laminated structure composed of a plurality of plate bodies. As a result, there is a disadvantage that the number of parts increases and the manufacturing cost increases.

Accordingly, the present invention is to solve the above-mentioned drawbacks of the prior art, and efficiently conducts and dissipates the heat generated by the controller itself in a lighting fixture with a simple structure, and is applicable to a large-capacity controller. And at a low manufacturing cost.

[0006]

To this end, the heat radiation structure of the controller of the lighting equipment is locked and fixed in a buried part such as a ceiling to be insulated and a box having a front surface covered with a cover. A radiator plate having an area larger than that of the opening is formed into a two-layer structure by bending the plate body into a U-shaped cross section .
At the position facing the controller held by the fixed piece that has been cut and raised ,
After having assumed disposing a vent hole communicating with the space formed by a two-layer structure, it is made by contact fixed to the periphery of the box.

[0007]

With the above arrangement, the controller serving as a heat source is fixed on a heat radiating plate having an area larger than the opening of the box in which the controller is internally fixed. It is efficiently radiated in the cover direction through a heat radiating plate having an area larger than the opening of the box, thereby preventing the semiconductor constituting the controller from being adversely affected by heat, and the heat radiating plate itself. Since the overall height can be reduced, it is possible to suppress the amount of protrusion of the cover itself from the outer wall surface such as the ceiling, and to prevent the appearance from deteriorating due to the protrusion of the cover that is locked and fixed integrally to the box. Can be done.

[0008] Further, the radiator plate holding the controller is formed in a two-layer structure by bending the plate body into a U-shaped cross section , and is further provided at a position facing the controller.
Formed into a two-layer structure by the cover direction and the above bending
In order to arrange ventilation holes communicating with the space formed, the controller is fixed by a fixed piece cut and raised from a plate with a two-layer structure, so that the controller itself fixed to the heat sink is The generated heat is efficiently conducted in the direction of the cover in this heat sink because the heat sink has a double structure formed by bending a single plate into a U-shaped cross section. The cover is radiated and the direction of the cover provided on the heat sink
Communicates in the space formed by bending to form a two-layer structure
Air heated by the dissipation heat of the heat radiating plate by a vent which is because the fact that convection inside the closed space formed by the box and the cover, the box and the cover
Therefore, in the closed space formed, in particular, the cover direction and the folding
Convection in space formed as a two-layer structure by bending
Also it is possible to cool the heat generated sufficiently controller itself not only heat radiating plate by air, it is possible to prevent an adverse effect due to heat of the semiconductor constituting the controller due to the heat generated in the controller itself sectional above, the heat radiating plate itself, the plate body as described above
Since it is formed into a two-layer structure by bending it into a U-shaped surface, the overall height of the heat sink is reduced to reduce the amount of protrusion from the outer wall surface such as the ceiling of the cover and improve the appearance. As a result, the number of components constituting the heat radiating plate can be further reduced, so that the manufacturing cost can be suppressed.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. (1) is a mounting part of a controller of a lighting fixture provided with an embodiment of the present invention. The mounting part (1) of the controller is a buried part of a ceiling or the like (2) which is thermally insulated by a blowing or matting method. In contrast, a box (3) locked and fixed by a mounting spring (4) integrally formed, and a radiating plate (8) having an area larger than an opening (5) of the box in the box (3). ) The controller (7) of the lighting fixture is fixed inside, and the radiator plate is held while holding the edge (6) of the box (3).
(8) is fixed, and the cover (11) is integrally locked and fixed so as to cover the opening (5) and the heat sink (8).

[0010] In particular, after holding the controller (7) of the lighting fixture, the edge (6) of the box ( 3)
The box (3) radiating plate having a larger area than the opening (5) (8) which is secured to the outer wall surface such as a ceiling (2) (2 ') while nipping and the plate member in a U shape It shall be bent to form a two-layer structure, and a cover direction shall be set at a position facing the controller (7) of the lighting fixture which becomes a heat source.
And the space formed as a two-layer structure by bending
When arranging the ventilation hole (9) communicating with the inside and arranging the ventilation hole (9 ') on the controller (7) side, the heat sink is bent to have a U-shaped cross section and a two-layer structure.
The controller (7) of the lighting fixture is fixed by the fixing piece (10) cut and raised from the plate of (8) .

A heat sink (5) fixed to an outer wall (2 ') such as a ceiling while holding an opening (5) of the box (3) and an edge (6) of the box (3) in front of the opening (5). The cover (11) covering the cover (8) is erected inside the cover (11) and has a spring body (1) having a protruding portion (13) on a side surface.
According to 2), the cover (11) is pressed upward from the long holes (14) formed on both sides of the heat radiator plate (8), so that the cover (11) is pierced on the heat radiator plate (8). Long hole (14)
The spring body (12) of the cover (11) is inserted into the locking hole (17) while being guided by a guide body (15) having a locking hole (17) at the top (16) thereof. The protrusion (13) on the side surface of the spring body (12) is connected to the guide body (1).
It is integrally fixed to the box (3) by elastically engaging the locking hole (17) of (5).

Since the present invention has the above configuration, the controller (7) serving as a heat source by using the lighting equipment includes:
Box (3) to which the controller (7) is fixed inside
The heat generated by the controller (7) is larger than that of the opening (5) of the box (3) since the heat generated by the controller (7) is held on the heat radiating plate (8) having a larger area than the opening (5) of the box (3). The heat is efficiently dissipated in the direction of the cover (11) through conduction of the heat radiating plate (8) having an area, and the semiconductor constituting the controller (7) is adversely affected by the heat generated by the controller (7) itself. Can be prevented, and the total height of the radiator plate (8) itself fixed to the outer wall surface (2 ') such as the ceiling can be reduced, so that the outer wall surface (2) such as the ceiling of the cover (11) itself can be reduced. ) Can be suppressed, and the appearance can be prevented from being deteriorated by the protrusion of the cover (11) integrally locked and fixed to the box (3).

In addition, a heat radiating plate (8) holding a controller (7), which is mounted and fixed inside the box (3), is formed in a two-layer structure by bending the plate into a U-shaped cross section. and things still in a position facing the controller (7) of the luminaire as a heat source, covering direction and the upper
In the space formed by folding and forming a two-layer structure
When the communication vent hole (9) is provided and the controller side ventilation hole (9 ') is provided, the fixing piece (10 ) cut and raised from the plate of the heat sink (8) having a two-layer structure is used. ), The controller (7) of the lighting fixture is fixed, so that the heat generated by the controller (7) itself fixed to the heat sink (8) cuts off one plate.
Due to the double structure formed by bending the surface into a U-shape, the heat received from the controller (7) is efficiently conducted in the heat radiating plate (8) in the cover direction and dissipated into the cover (11). And can be disposed on a heat sink (8) held by the controller (7).
Formed into a two-layer structure by the cover direction and the above bending
The air warmed by the heat radiated by the heat radiating plate (8) by the ventilation hole (9) communicating with the space formed by the air circulating plate (8), particularly in the closed space formed by the box (3) and the cover (11). By covering direction and bending above
Since the convection freely flows in the space formed as a two-layer structure, not only the heat radiating plate (8) but also the heat generated by the controller (7) itself sufficiently held on the heat radiating plate (8). Can be cooled, and the heat generated by the controller (7) itself can prevent the semiconductor constituting the controller (7) from being adversely affected by the heat, and the radiator plate (8) itself can As described above, since the heat sink (8) is formed in a two-layer structure by bending the plate, the overall height of the heat radiating plate (8) is reduced, and the outer wall surface (2 ′) such as the ceiling of the cover (11) is reduced. ) It is possible to improve the appearance by reducing the amount of protrusion more, and to further reduce the number of components constituting the heat radiating plate (8), so that the manufacturing cost of the heat radiating plate (8) itself is reduced. Can also be suppressed It becomes.

[0014]

As described above, by efficiently conducting and dissipating the heat generated from the controller of the lighting equipment, the heat influence on the controller itself is reduced, and if the controller has the same capacity as the conventional controller, the controller can be used. The buried area in the ceiling etc. can be reduced, the appearance of the ceiling etc. can be prevented from deteriorating, and the heat sink has a double structure formed by bending a single plate into a U-shaped cross section. In the position facing the controller of the heat sink , a two-layer structure is formed by bending the cover in the direction of the cover.
By arranging ventilation holes that communicate with each other in the space formed, and by fixing the controller on the heat sink with a fixing piece cut and raised in arranging the ventilation holes,
The heat generated by the controller itself is more efficiently conducted in the radiator plate, dissipated in the cover, and the vent hole provided in the radiator plate communicates with the closed space formed by the cover and the box , especially the vent hole. Cover direction and folding
Since it is possible to cool by generating convection of air in the space formed as a two-layer structure by bending, a controller with a larger capacity can be used, This has an excellent effect that the overall height of the heat radiating plate itself is reduced to improve the appearance and, at the same time, the number of components is reduced to reduce the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a mounting portion of a controller of a lighting fixture according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part thereof.

FIG. 3 is an enlarged cross-sectional view of a main part of a mounting portion of a controller of a lighting fixture according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting part of lighting equipment controller 2 Ceiling etc. 2 '(Ceiling etc.) outer wall surface 3 Box 4 Mounting spring 5 Opening (of box) 6 Edge (of box) 7 Controller 8 Heat sink 9 (for heat sink ) Ventilation hole 9 'Vent hole (on the controller side of the heat sink) 10 Fixing piece 11 Cover 12 Spring body 13 Projection (of the spring body) 14 Long hole (of the heat sink) 15 Guide body 16 Top part 17 Lock hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F21V 29/00 F21V 23/04 H05K 7/20

Claims (1)

(57) [Claims] 1. A box whose front surface is covered with a cover is locked and fixed in a buried portion such as a ceiling to be thermally insulated, and a radiator plate having an area larger than an opening of the box is formed by cross-sectioning a plate body. It should be bent into a U-shape and formed with a two-layer structure, and further cut and raised from the plate of the heat sink.
At the position facing the controller held by the fixing piece , the cover direction and the above bending form a two-layer structure
As disposing a vent hole communicating with the space formed Te
Then, the heat dissipation structure of the lighting fixture controller is fixed to the periphery of the box.