JPS636811Y2 - - Google Patents

Description

[Detailed explanation of the idea] This idea relates to downlights.

Conventionally, there were downlights in which a mounting hole was formed in the center of the top of the cylindrical downlight body, a plurality of heat dissipation holes were formed in an annular shape around the hole, and a lamp socket was attached to the mounting hole. 1977
−144090).

However, since the heat dissipation holes are cut and raised to face the lamp socket, the lamp socket is heated by the hot air, and the hot air rises along the lamp socket, causing damage to the connection between the power line and the terminal, especially the branch of the power line. The drawback was that the points were heated.

Therefore, an object of this invention is to provide a downlight that can reduce the temperature rise at the branch point of the power line connected to the terminal of the lamp socket and improve the heat dissipation effect of the lamp socket.

An embodiment of this invention is shown in FIGS. 1 to 3. That is, in this downlight, a downlight main body 2 is buried in a ceiling embedding hole 1, and the top part 3
A lamp socket 4 is attached to the attachment hole 3a with screws 5. This lamp socket 4 is provided with a rod-shaped quick-connect terminal 6 on the side of the rear end so that its longitudinal direction is oriented parallel to the radial direction of the lamp socket 4, and a pair of wire insertion holes 7 are provided on the upper side of the end surface of the quick-connect terminal 6. , and a release hole 8 is formed on the lower side. Reference numeral 9 denotes an intake hole, 10 denotes a heat radiation hole, and four heat radiation holes 10 are formed by cutting and raising so as to form an annular shape around the mounting hole 3a and open outward in the radial direction, as shown in FIG. Further, the end face of the quick connection terminal 6 having the wire insertion hole 7 is positioned directly above the connecting portion 10a of the heat radiation hole 10. 11 is a panel frame, 12 is a panel, and 13 is a lamp.

Reference numeral 14 denotes a power supply wire, which is inserted into the wire insertion hole 7, and the wire insertion hole 7' is connected to the heat radiation hole 1 as shown in FIG.
Since the power line 14 is not directly above the heat radiation hole 10, it is not affected by the hot air that escapes from the heat radiation hole 10, and therefore the power line 14 is not directly above the heat radiation hole 10.
The branch point temperature can be reduced.

As described above, the downlight of this invention has a mounting hole at the center of the top, and a plurality of cutouts formed around the mounting hole in an annular shape and opening outward in the radial direction. a cylindrical downlight body having a heat dissipation hole; a lamp socket that is attached to the mounting hole and whose rear end protrudes from the ceiling; a quick-connect terminal, which is rod-shaped and parallel to one radial direction of the lamp socket, and has a release hole formed on the top side of the rod-shaped end face and a wire insertion hole formed on the side opposite to the top portion; Since the end surface of the quick connection terminal is located directly above the connecting portion between the heat radiation holes, the following effects can be obtained.

In other words, the quick-connect terminal makes it easy to connect the power line, and since the quick-connect terminal is provided on the side of the rear end of the lamp socket, the overall height of the downlight can be reduced, allowing the downlight to be installed at a low ceiling height. It can be installed at any location. In addition, since the heat dissipation holes are formed by cut-and-raised holes that open outward in the radial direction, the rear end of the lamp socket is not heated by hot air, and the heat dissipation effect of the lamp socket is improved. The quick-connect terminal provided on the front panel is also less likely to be exposed to hot air and has excellent heat dissipation. Furthermore, since the wire insertion hole is located above the release hole and directly above the connecting portion of the heat radiation hole, the influence of hot air on the power supply wire can be more reliably avoided and heat radiation is excellent. Therefore, it is possible to reduce the temperature rise at the branch point of the power wire inserted into the wire insertion hole.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of an embodiment of this invention, FIG. 2 is a perspective view of its lamp socket, FIG. 3 is a partial plan view thereof, and FIG. 4 is a plan view of a conventional example. 2...downlight body, 3...top, 3a...
...Mounting hole, 4...Lamp socket, 6...Quick connection terminal, 7...Wire insertion hole, 8...Release hole, 10...
Heat radiation hole, 10a...Connection part, 14...Power line.

Claims (1)

[Scope of utility model registration request] A cylindrical downlight body having a mounting hole at the center of the top, and a plurality of heat dissipation holes formed by cutting and cutting so as to form an annular shape around the mounting hole and open outward in the radial direction; , a lamp socket that is attached to the mounting hole and whose rear end protrudes from the top; and a rod-shaped lamp socket that is provided on the side of the rear end of the lamp socket and whose longitudinal direction is parallel to the radial direction of the lamp socket. and a quick-connect terminal having a release hole formed on the top side of the rod-shaped end face and a wire insertion hole formed on the opposite side of the top part, the end face of the quick-connect terminal being connected between the heat radiation holes. A downlight located directly above the joint.