JP2013122828A - Led illumination lamp having slipping-off preventive structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED illumination lamp that can dispense with tools at bonding of a body part and a socket with its workability considerably improved.SOLUTION: In the straight-tube type LED illumination lamp 10 having an LED board 11 for mounting a plurality of LEDs 12, a cylindrical cover 20 for covering the LED board 11, and sockets 30 covered on both ends of the cover 20, A slipping-off preventive part 30b of the cover 20 is formed on an inner peripheral part of the socket 30, and a locking part 20b corresponding to the slipping-off preventive part 30b is formed on an outer peripheral part of the cover 20.

Description

  The present invention relates to a straight tube type LED illumination lamp, and more particularly to an LED illumination lamp capable of improving workability during assembly.

  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, and then sockets are fitted to both ends of the main body, and the socket is bonded to the main body. 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 necessary or a space for temporary placement is necessary.

  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 LED illumination lamp according to claim 1 includes an LED substrate on which a plurality of LEDs are arranged, a cylindrical cover that covers the LED substrate, and sockets that are attached to both ends of the cover. In the straight tube type LED fluorescent lamp, a retaining portion of the cover is formed on the inner peripheral portion of the socket, and a locking portion corresponding to the retaining portion is formed on the outer peripheral portion of the cover. Is formed.

(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, the locking portion is formed by winding a belt-like material around the outer periphery of the cover.

  The present invention is as described above, and a cover retaining portion is formed on the inner peripheral portion of the socket, and a locking portion corresponding to the retaining portion is formed on the outer peripheral portion of the cover. . For this reason, since the locking portion is locked to the retaining portion so that the cover and the socket are not separated from each other, a jig for pressing the socket against the cover is unnecessary. There is no need for space. In addition, workability is improved and work reliability is also improved.

  The locking portion may be formed by winding a belt-like material around the outer periphery of the cover. For example, a tape or the like may be attached. In this way, the above-described effects can be obtained without applying special molding processing to the cover.

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 AA sectional drawing of a LED illumination lamp. It is a side view of the cover before winding a tape. It is a side view of the cover in the middle of winding the tape. It is a side view of the cover after winding a tape. It is a perspective view of the cylinder member of a socket. It is a rear view of the cylinder member of a socket. It is BB sectional drawing of the cylindrical member of a socket.

  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.

  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)
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)
The control board 40 is a board on which transistors and the like for switching on and off 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)
The cover 20 includes a heat radiating pipe 21 as a support member that supports the LED substrate 11 downward, and a light diffusion cover 25 fixed to the lower side of the heat radiating pipe 21.

  The cover 20 forms a cylindrical shape as a whole by joining the light diffusion cover 25 and the heat radiating pipe 21 together. And since the length of the heat radiating pipe 21 and the light-diffusion cover 25 differs, the level | step difference 20a of about 3 mm is formed in both end surfaces (refer FIG. 5). The step 20a is for positioning the cover 20 in the rotation direction with respect to the socket 30. When the socket 30 is attached to the cover 20, the step 20a is engaged with an engagement protrusion 30a of the socket 30 described later. It has become.

(Heat dissipation pipe 21)
The heat radiating pipe 21 is an extruded mold member made of aluminum, and includes a substantially half-moon shaped pipe portion 21a and a hanging portion 21b integrally extending below the pipe portion 21a. 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)
The light diffusion cover 25 is a resin-made 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. As shown in FIGS. 9 and 10, two engaging protrusions 30 a are provided on the inner peripheral edge of the bottom portion of the cylindrical member 31, that is, the contact surface of the cover 20.

  Further, a retaining portion 30 b for preventing the cover 20 from coming off is formed on the inner peripheral portion of the cylindrical member 31. The retaining portion 30b is a protrusion provided on the inner peripheral surface so as to be hooked when the cover 20 is moved in the removing direction, and is provided at two locations on the top and bottom.

  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 fixing the cover 20 and the socket 30)
When fixing the cover 20 and the socket 30, a strip-like tape 50 (vinyl tape, cloth tape, etc.) is wound around the outer periphery of the cylindrical cover 20, whereby the light diffusion cover 25 and the heat radiating pipe are wound. 21 is integrally fixed, and a locking portion 20 b is formed on the outer peripheral portion of the cover 20. At this time, as shown in FIGS. 6 and 7, the tape 50 is wound around the steps 20 a at both ends of the cover 20.

  Thereafter, the cover 20 is inserted into the socket 30. Then, the latching | locking part 20b formed with the strip | belt-shaped material is hooked on the retaining part 30b of the inner peripheral part of the socket 30, and it fixes without falling out. In this state, an adhesive or the like is applied to the joint surface between the cover 20 and the socket 30 in advance or later. Thereby, completion of adhesion can be waited in the state where cover 20 and socket 30 were fixed.

(Summary)
The present embodiment is as described above, and the retaining portion 30b of the cover 20 is formed on the inner peripheral portion of the socket 30. The outer peripheral portion of the cover 20 is latched corresponding to the retaining portion 30b. A portion 20b is formed. For this reason, since the locking part 20b is locked to the retaining part 30b, the cover 20 and the socket 30 are held so as not to be separated from each other, so that a jig for pressing the socket 30 against the cover 20 is unnecessary. In addition, there is no need for a temporary space. In addition, workability is improved and work reliability is also improved.

  Further, since the band-like material (tape 50) is wound around the outer peripheral portion of the cover 20 to form the locking portion 20b, the above-described effects can be obtained without applying special molding processing to the cover 20. Further, the light diffusion cover 25 and the heat radiating pipe 21 can be integrally fixed by a belt-like material (tape 50).

  In addition, as embodiment of this invention, it is not restricted to the aspect which winds the strip | belt-shaped material (tape 50) around the outer peripheral part of the cover 20, and forms the latching | locking part 20b. For example, a concave portion or a convex portion may be provided on the outer peripheral portion of the cover 20 to form the locking portion 20b, and the concave portion or the convex portion may be engaged with the retaining portion 30b.

10 LED lighting 11 LED substrate 12 LED
13 Capacitor 20 Cover 20a Step 20b Locking part 21 Radiation pipe 21a Pipe part 21b Dropping part 21c Nipping groove 21d Outer groove 25 Light diffusion cover 25a Engaging claw part 25b Light transmitting part 30 Socket 30a Engaging protrusion 30b Retaining part 31 Tube member 32 Electrode cap 32a Pin 40 Control board 50 Tape

Claims (2)

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;
A straight tube type LED fluorescent lamp with
The inner periphery of the socket is formed with a retaining portion for the cover,
The LED illumination lamp is characterized in that a locking portion corresponding to the retaining portion is formed on an outer peripheral portion of the cover.   2. The LED lamp according to claim 1, wherein the locking portion is formed by winding a belt-like material around an outer peripheral portion of the cover.

Images