JP2013214392A - Socket insertion-coupling structure for led illumination lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED illumination lamp doing away with a jig in adhering a body part and a socket and capable of greatly improving workability.SOLUTION: A straight-tube LED illumination lamp 10 includes an LED substrate 11 mounting a plurality of LEDs 12, a cylindrical cover 20 covering the LED substrate 11, and sockets 30 crowned on either end of the cover 20. The cover 20 and each socket 30 are to be insertion-coupled with each other as the cover 20 is plugged into each socket 30 in a given direction and rotated.

Description

  The present invention relates to a socket fitting structure for a straight tube type LED lighting.

  In recent years, LED illumination lamps that are structurally compatible with existing fluorescent lamps have been proposed (see, for example, Patent Document 1).

  Such an LED illuminating lamp includes a cylindrical main body portion and socket portions provided on both sides of the main body portion, and the outer shape is the same as that of a conventional fluorescent lamp.

JP 2011-210729 A

  When assembling the LED lighting as described above, the LED board is accommodated inside the main body portion, the socket is fitted, and the fitted main body portion and the socket are bonded and assembled. At this time, since the main body portion and the socket are in a light fitting state, it is necessary to press the socket against the main body portion so that the main body portion and the socket are not separated until an adhesive strength is obtained. For this reason, there is a problem that a jig for pressing is required or a space for temporary placement is required.

  Then, this invention makes it a subject to provide the LED illuminating lamp which does not require a jig | tool when adhere | attaching a main-body part and a socket, and can improve workability | operativity significantly.

  The present invention has been made to solve the above-described problems, and is characterized by the following.

(Claim 1)
The invention described in claim 1 is characterized by the following points.

  That is, the socket fitting structure of the LED lighting lamp according to claim 1 includes an LED board on which a plurality of LEDs are disposed, a cylindrical cover that covers the LED board, and sockets that are attached to both ends of the cover. In the straight tube type LED illuminating lamp, the cover and the socket are fitted together by rotating the cover after inserting it into the socket in a predetermined direction.

(Claim 2)
The invention described in claim 2 has the following features in addition to the features of the invention described in claim 1 described above.

  That is, a cover convex portion protruding in the outer peripheral direction is formed on the outer periphery of the cover, and a socket convex portion protruding in the inner peripheral direction is formed on the inner periphery of the socket. The cover and the socket are fitted with each other by engaging the socket convex portion.

(Claim 3)
The invention described in claim 3 is characterized by the following points in addition to the characteristics of the invention described in claim 1 or 2.

  That is, an engaging part and an engaged part are provided at positions corresponding to the cover convex part and the socket convex part, and the cover and the socket are engaged by engaging the engaging part and the engaged part. They are positioned relative to each other.

  The present invention is as described above, and the cover and the socket are fitted by rotating the cover after being inserted into the socket in a predetermined direction. That is, the cover is formed so as to be loosely fitted when inserted into the socket in a predetermined direction and to be tightly fitted by rotating from this loosely fitted state. For this reason, since the cover and the socket are held so as not to be separated by rotating the cover, a jig for pressing the socket against the cover is unnecessary, and a space for temporary placement is also unnecessary. . In addition, workability is improved and work reliability is also improved.

  For example, a cover convex portion that protrudes in the outer peripheral direction is formed on the outer periphery of the cover, and a socket convex portion that protrudes in the inner peripheral direction is formed on the inner periphery of the socket, and the cover convex portion and the socket convex portion are What is necessary is just to make the said cover and the said socket fit by engaging.

  Further, an engaging portion and an engaged portion are provided at positions corresponding to the cover convex portion and the socket convex portion, and the cover and the socket are engaged by engaging the engaging portion and the engaged portion. You may make it mutually position. With this configuration, positioning in the rotation direction is facilitated, so that even when the socket and the cover are assembled with each other rotated, there is no problem that the irradiation direction of the LED is shifted.

It is the side view which abbreviate | omitted (a) front view and (b) intermediate part of LED lighting. It is the partially expanded exploded view which looked at the LED illumination light from the top. It is the partially expanded exploded view which looked at the LED illumination light from the bottom. It is the (a) front view of the LED illumination light which removed the socket, (b) It is a partially expanded front view. It is (a) rear view of a socket, (b) It is a partially expanded rear view. It is a partially expanded view explaining the state which fits a cover and a socket, Comprising: (a) The figure which shows the state before fitting, (b) The figure which shows the state after fitting.

  As shown in FIG. 1, the LED illumination lamp 10 according to the present embodiment is a straight tube illumination lamp that is structurally compatible with a conventional fluorescent lamp, and can be connected to a conventional lamp body for a fluorescent lamp. It has become.

  The LED illumination lamp 10 includes an LED board 11 on which a plurality of LEDs 12 are arranged, a control board 40 that controls power supply to the LED board 11, and a cylindrical cover 20 that covers the LED board 11 and the control board 40. , And sockets 30 attached to both ends of the cover 20. As in the case of a conventional fluorescent lamp, the LED illumination lamp 10 is lit when power is supplied through the connection portion with the sockets 30 at both ends attached to the connection portion of the lamp body.

(LED board 11)
As shown in FIG. 3 and the like, the LED substrate 11 is a base on which a plurality of LEDs 12 are mounted on the surface. A capacitor 13 that stores electricity to be supplied to the LED 12 is also mounted on the LED substrate 11.

(Control board 40)
As shown in FIG. 2 and the like, the control board 40 is a board on which transistors and the like for switching on / off of the plurality of LEDs 12 on the LED board 11 are mounted. Although not particularly illustrated, the control board 40 includes a control circuit for controlling power supplied from the outside, and supplies power to the LED board 11 via the control circuit.

(Cover 20)
As shown in FIGS. 2 and 3, the cover 20 includes a heat radiation pipe 21 as a support member that supports the LED substrate 11 downward, and a light diffusion cover 25 that is fixed to the lower side of the heat radiation pipe 21. I have. The cover 20 forms a cylindrical shape as a whole when the light diffusion cover 25 and the heat radiating pipe 21 are joined.

(Heat dissipation pipe 21)
The heat radiating pipe 21 is an aluminum extrusion mold material, and as shown in FIGS. 2 to 4, a substantially half-moon-shaped pipe portion 21 a, and a hanging portion 21 b integrally extending below the pipe portion 21 a It has. The heat radiating pipe 21 is attached so that the LED board 11 and the control board 40 are in surface contact with each other, and serves as a heat sink for radiating the heat of the board.

  The substantially half-moon shaped pipe portion 21a has a hollow inside, and the control board 40 can be slid into the hollow inside.

  The hanging part 21b protrudes downward from the flat surface of the pipe part 21a and is formed in parallel on both sides over the entire length of the cover 20 in the longitudinal direction. Nipping grooves 21c are formed at opposing positions on the inner side surfaces of the two hanging portions 21b. By inserting and sliding the LED board 11 into the holding grooves 21c, the mounting surface of the LED 12 is lowered below. The LED substrate 11 can be held so as to face. An outer groove 21d is formed on the outer surface of the two hanging parts 21b, and the light diffusion cover 25 can be attached by the outer groove 21d.

(Light diffusion cover 25)
As shown in FIGS. 2 to 4, the light diffusing cover 25 is a resin extruded mold formed in a substantially C shape. The light diffusion cover 25 as a whole constitutes a light-transmitting light transmitting portion 25b, and is formed so as to emit light emitted from the LED 12 downward and laterally.

  The open end portions on both sides of the light diffusing cover 25 protrude inward in a bowl shape, and form an engaging claw portion 25a. The light diffusing cover 25 can be attached to the heat radiating pipe 21 by inserting the engaging claw portion 25a into the outer groove 21d of the heat radiating pipe 21 described above. When the light diffusing cover 25 is attached to the heat radiating pipe 21, the engaging claws 25a on both sides are pushed away in the direction away from each other by using the elasticity of the light diffusing cover 25 and inserted into the outer groove 21d. Thereby, the engagement claw portions 25a on both sides sandwich the outer groove 21d from the outside, and the light diffusion cover 25 and the heat radiating pipe 21 are joined to each other.

(Socket 30)
The socket 30 is a bottomed cylindrical member that is attached to both ends of the cover 20, and includes a resin tubular member 31 and an electrode cap 32 that is attached to an end of the tubular member 31. .

  The cylindrical member 31 is formed in a cylindrical shape in order to be covered on the outer periphery of the end portion of the cover 20.

  The electrode cap 32 is a metal member having two pins 32a protruding therefrom. The LED illuminating lamp 10 is mounted on the lamp body by inserting and connecting the pin 32a of the electrode cap 32 to the connection portion of the lamp body, and the weight of the LED illumination lamp 10 can be supported by the pin 32a.

(About fitting of the cover 20 and the socket 30)
As shown in FIGS. 3 and 4, a cover convex portion 21 e protruding in the outer peripheral direction is formed on the outer periphery of the cover 20 described above. Specifically, a cover protrusion 21e is bulged and formed at a lower end position of the outer periphery of the heat radiating pipe 21 with a predetermined width (for example, a width of 1/10 or less of the outer peripheral length).

  Moreover, as shown in FIG. 5, the socket convex part 31a which protrudes in an inner peripheral direction is formed in the inner periphery of the socket 30. As shown in FIG. Specifically, the socket convex portion 31a is bulged and formed at a lower end position of the inner periphery of the cylindrical member 31 with a predetermined width (for example, a width of 1/10 or less of the inner peripheral length).

  When the cover 20 and the socket 30 are fitted, the cover 20 may be rotated after being inserted into the socket 30 in a predetermined direction. That is, first, as shown in FIG. 6A, the cover 20 is inserted into the socket 30 in such a direction that the cover convex portion 21e and the socket convex portion 31a do not face each other. Thereafter, as shown in FIG. 6B, if the cover 20 and the socket 30 are relatively rotated to a position where the cover convex portion 21e and the socket convex portion 31a face each other, the cover convex portion 21e and the socket convex portion 31a By overlapping, the fitting becomes tight and the cover 20 and the socket 30 can be fixed.

  Further, as shown in FIG. 4, an engaged portion 21f is recessed at the center of the cover convex portion 21e, and further, as shown in FIG. 5, an engaging portion 31b is provided at the center of the socket convex portion 31a. Is convex. For this reason, as shown in FIG. 6B, when the cover convex portion 21e and the socket convex portion 31a are completely overlapped, the engaging portion 31b and the engaged portion 21f are engaged, The socket 30 is formed to be positioned with respect to each other.

  Thus, according to the present embodiment, the cover 20 is formed so as to be loosely fitted when inserted into the socket 30 in a predetermined direction, and to be tightly fitted by rotating from this loosely fitted state. Yes. For this reason, since the cover 20 and the socket 30 are held so as not to be separated from each other, a jig for pressing the socket 30 against the cover 20 when the cover 20 and the socket 30 are bonded and assembled is unnecessary. There is no need for temporary space. In addition, workability is improved and work reliability is also improved.

  Further, since the engaging portion 31b and the engaged portion 21f are engaged with each other, the cover 20 and the socket 30 are positioned relative to each other, so that positioning in the rotational direction is facilitated, and the socket 30 and the cover 20 are rotated relative to each other. Even when assembled, the problem that the irradiation direction of the LED 12 shifts does not occur.

  In the above-described embodiment, the cover protrusion 21e is bulged and formed on the heat radiating pipe 21, but the present invention is not limited to this. For example, you may provide a cover convex part in the light-diffusion cover 25. FIG. However, when the cover convex portion is bulged and formed on the light diffusion cover 25 by extrusion, the cover convex portion is formed over the entire length in the longitudinal direction (including the light transmitting portion 25b), which causes a problem in light characteristics. is there. Therefore, when providing a cover convex part in the light-diffusion cover 25, it is preferable to form a cover convex part by sticking.

10 LED lighting 11 LED substrate 12 LED
13 Capacitor 20 Cover 21 Radiating pipe (supporting member)
21a Pipe part 21b Hanging part 21c Nipping groove 21d Outer groove 21e Cover convex part 21f Engagement part 25 Light diffusion cover 25a Engaging claw part 25b Light transmission part 30 Socket 31 Cylindrical member 31a Socket convex part 31b Engagement part 32 Electrode Cap 32a Pin 40 Control board

Claims (3)

An LED substrate on which a plurality of LEDs are disposed;
A cylindrical cover that covers the LED substrate;
Sockets attached to both ends of the cover;
In a straight tube type LED lighting with
A socket fitting structure for an LED illuminating lamp, wherein the cover and the socket are fitted by rotating the cover after being inserted into the socket in a predetermined direction. While forming a cover convex portion protruding in the outer peripheral direction on the outer periphery of the cover,
Forming a socket projection protruding in the inner circumferential direction on the inner circumference of the socket;
The socket fitting structure for an LED lighting lamp according to claim 1, wherein the cover and the socket are engaged by engaging the cover convex portion and the socket convex portion.   An engaging part and an engaged part are provided at positions corresponding to the cover convex part and the socket convex part, and the cover and the socket are positioned relative to each other by engaging the engaging part and the engaged part. The socket fitting structure for an LED lighting lamp according to claim 1, wherein the socket fitting structure is an LED lighting lamp.

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