JP6131734B2 - Straight tube LED lamp and lighting device - Google Patents

Description

  The present invention relates to a straight tube LED lamp using a semiconductor light emitting element as a light source, and an illumination device including the straight tube LED lamp.

In recent years, LED lamps using light emitting diodes (LEDs), which are one of semiconductor light emitting elements, as a light source have been commercialized.
LED lamps are used as highly efficient and energy-saving light sources.
Such an LED lamp includes an LED module (light emitting module), and a straight tube LED lamp, a light bulb type LED lamp, and the like have been proposed by appropriately selecting the shape of the LED module.
In both cases, a plurality of LEDs are arranged in a row or a plurality of rows on a substrate to constitute an LED module.

There are various types of caps such as a cap that can be replaced with a fluorescent lamp as it is, and a cap that has a grounding member that requires replacement of a lamp.
In addition, LED lamps that irradiate in a certain direction according to the socket of the lamp, and LED lamps that can change the irradiation direction regardless of the orientation of the socket are also on the market.

In Patent Document 1, a closing member is fixed to a longitudinal end portion of a tubular body having a circuit board on which a light emitting element is disposed, and a pin that can be attached to a socket of a fluorescent lamp apparatus on the outside in the longitudinal direction of the closing member The structure which attaches the nozzle | cap | die provided with is described.
The closing member is formed with one screw hole concentrically with the outer periphery of the base, and the base is formed with three screw insertion holes on the concentric circle.
When fixing the base to the closing member, by changing the screw insertion hole and screwing it, the longitudinal direction of the closing member, that is, the tube body, is the axial center with respect to the base fixed to the fluorescent lamp fixture by the pin. The position around the axis center can be changed.
Thereby, the radiation | emission direction (irradiation direction) of the light from a tubular body can be changed, and the irradiation nonuniformity resulting from high directivity of LED can be suppressed.

In Patent Document 2, a joint member is inserted and fixed at an axial end of a light-transmitting tubular body having a substrate on which a plurality of light emitting elements are mounted, and a base is fitted on the axially outer side of the joint member. The structure to be described is described.
The base has a pin that can be attached to a socket of a fluorescent lamp fixture.
On the inner surface of the joint member, a plurality of concavo-convex surfaces are formed around an axis centering on the longitudinal direction of the light-transmitting tubular body, and an elastically deformable claw portion engaging with the concavo-convex surface is formed on the base. ing.
Thereby, the integral structure of the light transmissive tubular body and the joint member can be rotated with respect to the base, and can be fixed at an arbitrary position where the claw portion is engaged.
That is, the radiation direction of light from the light transmissive tubular body can be changed.

In addition, although the LED lamp of patent document 1, 2 can be mounted | worn with the socket of a fluorescent lamp fixture, the power supply to a light emitting element is made by a dedicated power cord.
That is, power cannot be supplied directly from a general fluorescent lamp fixture, and the fluorescent lamp fixture is used only as a support device.

In the configuration described in Patent Document 1, only a few positions are changed around the axis of the tube, so that it is not always possible to irradiate a desired position.
Further, it is necessary to remove the screws and fix them with the bases on both sides in order to adjust the irradiation direction, which is troublesome.

In the configuration described in Patent Document 2, the irradiation angle can be finely adjusted because a large number of uneven portions are provided.
However, since the base cannot be removed even if repairs are made when the internal board is defective and does not light up, the base can only be destroyed or given up and discarded.

  The present invention was devised in view of such a current situation, and it is possible to easily and finely adjust the irradiation angle, to easily perform repairs such as when the lamp is not lit, and to contribute to the improvement of practicality. The main object of the present invention is to provide a straight tube LED lamp that can be used.

  In order to achieve the above object, the present invention provides a rod-shaped housing, a translucent cover member that extends along the longitudinal direction of the housing and is attached to the housing, and an inner side of the cover member. A straight tube LED lamp having a plurality of semiconductor light emitting elements arranged along the longitudinal direction in the casing, and a base provided at both ends in the longitudinal direction of the casing and attachable to a socket portion of a lighting fixture The base includes a fixing member that is detachably fixed to the housing, and a rotating member that has a mounting structure for the socket portion and is rotatable relative to the fixing member, Between the fixing member and the rotating member, there is provided a positioning structure having a plurality of fixing positions around the axis centered in the longitudinal direction and capable of fixing at an arbitrary rotating position, and the fixing member and the rotating member Either one between the rotating members A plurality of claw members are formed on the other side, and a receiving part is formed on the other side. When the rotating member is pressed against the fixing member in the longitudinal direction, the claw member is caught on the receiving part, and the fixing member and the rotating part are rotated. The rotation member is provided with an opening for inserting the claw release member from the outside in the longitudinal direction to release the hook of the claw member from the receiving portion.

According to the present invention, it is possible to easily adjust the irradiation angle only by a rotating operation.
In addition, since the rotation member is attached to the fixed member with a hooking structure of the claw member, and the hooking of the claw member is released at the time of disassembly, repair such as when the lamp is not lit can be easily performed.
Also, it is less troublesome than fixing with screws, and there is no worry of losing the removed screws.

It is a figure which shows the illuminating device which concerns on one Embodiment of this invention, and is a perspective view of the state which removed the LED lamp from the lighting fixture. It is a disassembled perspective view of an LED lamp. It is a figure which shows the structure around a nozzle | cap | die, and is the disassembled perspective view seen from the semiconductor light-emitting device substrate side. It is a figure which shows the structure around a nozzle | cap | die, and is the disassembled perspective view seen from the drive substrate side. It is a disassembled perspective view which shows the assembly | attachment structure of the latch member with respect to a fixing member. It is a perspective view of the state where the latch member was assembled to the fixing member. It is a figure which shows the deformation | transformation operation | movement of a latch member. It is a disassembled perspective view which shows the assembly | attachment structure of the nozzle | cap | die cover member with respect to a rotation member. It is a perspective view of the state which attached | attached the nozzle | cap | die cover member to the rotating member. It is a side view which shows the arrangement | positioning relationship of a nail | claw member. It is the side view seen from the axial direction outer side of the rotation member. It is the side view seen from the axial direction inner side of the rotation member. It is a disassembled perspective view which shows the assembly | attachment structure of the nail | claw hooking member with respect to a rotation member. It is a perspective view which shows the state which assembled | attached the nail | claw hooking member to the rotating member. It is a disassembled perspective view which shows the assembly method of the rotating member with respect to a fixing member. It is a longitudinal cross-sectional view before the assembly showing the configuration around the base. It is a longitudinal cross-sectional view after the assembly | attachment which shows the structure around a nozzle | cap | die. It is a nozzle tip section perspective view explaining the state where the nail was fixed to the nail hooking member.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an external appearance of a lighting device 200 according to the present embodiment. The lighting device 200 includes a straight tube LED lamp (hereinafter also simply referred to as “LED lamp”) 100 and a lighting fixture 150 on which the LED lamp 100 is mounted.
The lighting fixture 150 is the same as a fixture for turning on a fluorescent lamp, and a terminal (described later) of the LED lamp 100 is inserted in accordance with the hole positions of the socket portions 151a and 151b.
A commercial current or a current passing through a ballast (not shown) flows from the terminal to the LED 5 described later in the LED lamp 100, and the LED lamp is turned on.

The LED lamp 100 mainly includes a cover 3 as a translucent cover member, a rod-shaped housing 2, and caps 1 a and 1 b as cap members that can be electrically connected to the lighting fixture 150.
The casing 2 is formed in a semi-cylindrical shape (cylindrical shape) whose cross-sectional shape is substantially the same in the longitudinal direction (axial direction).
In order to improve the heat dissipation function of the heat generated inside, the outer surface of the housing 2 is provided with irregularities to increase the surface area. When the temperature rise is small and the heat dissipation function is not required, the unevenness may not be provided.
The housing | casing 2 is formed with the metal material with large heat conductivity. Due to the cylindrical shape, the casing 2 having a uniform cross-sectional shape can be manufactured at low cost by a processing method such as extrusion molding or pultrusion molding.

As shown in FIG. 1, the lighting fixture 150 is the same as a fixture for lighting a fluorescent lamp, and the caps 1a and 1b have a configuration that can be attached to the socket portions 151a and 151b.
In this description, the R17d cap will be described, but the same effect can be obtained with a G13 cap used in a general fluorescent lamp.

Hereinafter, the configuration and assembly method of the LED lamp 100 will be described with reference to the drawings.
As shown in FIG. 2, the housing 2 inside the cover 3 is provided with semiconductor light emitting element substrates 4a and 4b on which a plurality of semiconductor light emitting elements (hereinafter also simply referred to as “LEDs”) 5 are mounted. ing.
The semiconductor light emitting element substrates 4a and 4b have a narrow plate shape along the longitudinal direction (axial direction) of the housing 2, and the LEDs 5 are arranged on the semiconductor light emitting element substrates 4a and 4b at substantially equal intervals in the longitudinal direction. Has been placed.
Here, a configuration in which two semiconductor light emitting element substrates 4 a and 4 b are disposed is illustrated, but one or three or more may be used depending on the length of the LED lamp 100.

The semiconductor light emitting element substrates 4a and 4b are fixed to the housing 2 by means such as adhesive tape and screws.
As shown in FIG. 4, electricity from a commercial power supply or ballast (not shown) flows to the terminals 22a and 22b, the connector 44 is electrically connected by the terminal fitting portions 24a and 24b, and the lead wires 42a and 42b. Power is supplied to the drive substrate 40 via
The terminals 22a and 22b are terminals that can be mounted on a fluorescent lamp lighting apparatus.
As shown in FIG. 3, the electricity converted by the electronic components mounted on the drive substrate 40 flows to the semiconductor light emitting element substrates 4a and 4b via the lead wires 41a and 41b, and turns on the LEDs 5.

Here, if the external electricity provided to the terminals 22a and 22b can supply power suitable for lighting the LED 5, the drive substrate 40 is unnecessary, and the lead wires 42a and 42b are directly connected to the semiconductor light emitting element substrates 4a and 4b. be able to.
The drive substrate 40 is fixed to the housing 2 by a one-touch operation by inserting a clamp 43 having a hook part capable of elastic deformation through a hole formed in the drive substrate and the housing.
As another fixing method of the driving substrate 40, screws or the like may be used.
The cover 3 is made of a light-transmitting resin or glass that can transmit the light flux of the LED 5.
The shape of the straight tube LED lamp is formed by combining the housing 2 and the cover 3 together.

At both ends in the longitudinal direction of the integral configuration of the housing 2 and the cover 3, caps 1 a and 1 b are disposed so as to cover both.
The bases 1a and 1b include a cylindrical rotating member 20 into which the terminals 22a and 22b are inserted, and a fixing member 30 fixed to the housing 2, and have a mounting configuration with respect to the socket portions 151a and 151b.

The fixing member 30 includes a fixing member main body 30a and a latch member 50 that is located in the rotating member 20 and stops the rotating member 20 from freely rotating.
The rotating member 20 is formed with openings 23 a, 23 b, 23 c for inserting a claw releasing member such as a driver from the outside in the axial direction, and the openings 23 a, 23 b, 23 c are covered with a base cover 60.
The fixing member main body 30a is fixed to the housing 2 through the screws 34a and 34b through the screws 10a and 10b.
In the present embodiment, the fixing member 30 is one member on which the claw members 31a, 31b, 31c are formed, and the rotating member 20 is the other member on which the receiving portion is formed.

As shown in FIG. 5, the fixing member main body 30a has three claw members 31a, 31b, and 31c arranged at equal intervals (here, every 60 degrees) around the rotation center (around the axis).
The claw members 31a, 31b and 31c have a shape extending in the axial direction from the fixed member main body 30a, and a claw portion protruding inward is formed at the free end portion.
As shown in FIG. 10, the claw members 31a, 31b, and 31c are arranged such that the relational expression P1≈P2≈P3 is established at distances P1, P2, and P3 from the rotation center.
Here, a configuration in which three claw members are arranged is illustrated, but an appropriate number of two or more may be used.
As shown in FIG. 6, an opening 36 through which the connector 44 passes is formed at the center of the fixing member main body 30 a and is electrically connected to the terminals 22 a and 22 b of the rotating member 20.

As shown in FIG. 5, a latch member 50 is detachably attached to the outer side in the axial direction of the fixing member main body 30a.
Holes 33a and 33b are formed in the fixing member main body 30a. By inserting the bosses 52a and 52b of the latch member 50 into the holes 33a and 33b, the fixing member main body 30a is prevented from rotating. Attached to.

The latch member 50 is formed of a synthetic resin in a ring shape, and projecting portions 51a and 51b as convex portions are formed at two locations facing each other in the radial direction of the outer peripheral surface thereof.
The insides of the portions where the protrusions 51a and 51b are cut out are thin and elastically deformable.
In FIG. 7, reference numerals 52a, 52b, and 52c indicate insertion portions of the claw members 31a, 31b, and 31c.
As shown in FIGS. 12 and 13, a plurality of recesses 28 are formed on the inner peripheral surface of the rotating member 20 at substantially equal intervals in the circumferential direction. A convex portion 27 is formed between the concave portion 28 and the concave portion 28.
In the assembled state, the rotation of the rotating member 20 is stopped when the protrusions 51 a and 51 b are fitted in the recess 28.
This fitting position is a fixed position, and the recess 28 and the protrusions 51a and 51b constitute a positioning structure that can be fixed at an arbitrary rotational position.

When a rotational torque (rotational force) is applied to the fixing member 30 side, as shown in FIG. 7, the protrusions 51a and 51b of the latch member 50 formed of resin are elastically deformed and bent in the direction of the arrow, and the protrusion 51a. , 51b rides on the convex portion 27.
Further rotation causes the protrusions 51a and 51b to move between the recesses and fit into the next recess 28 and stop. This rotation is relatively possible between the fixed member 30 and the rotating member 20.
That is, when the LED lamp 100 is mounted on the lighting fixture 150, since the bases 1a and 1b are fixed to the socket portions 151a and 151b, the rotating member 20 having the bases 1a and 1b integrally is a fixing member. It becomes as.
In this case, the fixing member 30 that is integrated with the housing 2 and the cover 3 can be rotated with respect to the rotating member 20.
In a state where the LED lamp 100 is not mounted on the lighting fixture 150, both the rotating member 20 and the fixing member 30 can be rotated relatively. For example, when the fixing member 30 is fixed in position, the rotating member 20 is rotated. Can do.

The rotation operation of the fixing member 30 is repeated until a desired irradiation angle, that is, an angle at which irradiation unevenness due to the directivity of the LED 5 is improved.
When the stoppers 29 (see FIG. 12) provided on the rotating member 20 are in contact with the ribs 53a and 53b (see FIG. 5) of the latch member 50, the rotation is restricted.
That is, since the insertion portions 52a and 52b are inserted into the fixing member main body 30a, if the latch member 50 cannot move, the fixing member 30 cannot rotate any more.
Instead of the latch member 50, the rotation of the fixing member 30 with respect to the rotating member 20 may be stopped by a component such as rubber packing.

As shown in FIGS. 13 and 14, the rotating member 20 is integrated with a claw hooking member 21.
A hole 25 for passing the connector 44 is provided at the center of the claw hooking member 21.
A flange portion 26 as a receiving portion is formed on the outer peripheral surface of the claw hooking member 21, and the axially outer surface of the flange portion 26 is a hooking surface 26 a on which the claw portions of the claw members 31 a, 31 b, and 31 c are hooked. Become.

The flange portion 26 is formed in an annular shape so that the fixing member 30 can be rotated in a state where the claw members 31a, 31b, and 31c are hooked.
The claw hooking member 21 is fixed to the rotating member 20 by a method such as press fitting, adhesion, welding or the like using the terminal side (axially inner side) plane and circumferential side surface.
The rotating member 20 is provided with openings 23a, 23b, 23c equal to or more than the number of the claw members 31a, 31b, 31c.
Here, an example having the same number of openings as the claw members will be described.
The openings 23a, 23b, and 23c are arranged so that all the claw members 31a, 31b, and 31c can be confirmed from the outside in the axial direction at a certain rotational position.

When the rotating member 20 is assembled to the fixing member 30, the rotating member 20 is pressed against the fixing member 30 to which the latch member 50 is attached from the outside in the axial direction.
As shown in FIG. 16, the claw portions of the claw members 31 a, 31 b, and 31 c have inclined portions. Therefore, as shown in FIG. 15, the claw members 31 a, 31 b, and 31 c are moved away from the rotation center (arrow direction). ) To bend.
Thereafter, the claw is caught on the hooking surface of the flange 26, and the assembly is completed.
In FIG. 15, the symbol Y indicates a cross section parallel to the axial direction, and X indicates a cross section perpendicular to the axial direction.

The difference (diameter L1 × 2) between the diameter D of the claw hooking member 21 (see FIG. 17) and the distance P1 (see FIG. 10) from the center of rotation to the claw member 31a, and the claw members 31a and 31b. , 31c and length H (see FIG. 16), D, P1, and H are appropriately selected so that the claw members 31a, 31b, and 31c can be deformed within the elastic range.
The engagement amount L2 (see FIG. 17) of the claw members 31a, 31b, and 31c to the flange portion 26 is also set in consideration of assembling property and difficulty in disassembly.
As shown in FIG. 6, the claw members 31a, 31b, and 31c have tips (claw portions) having inclined portions 35 and cutout portions 32a and 32b.

The inclined portion 35 is for facilitating insertion when the rotating member 20 is assembled to the fixed member 30.
The notches 32a and 32b are for making it easy for tools such as a flat-blade screwdriver and jigs (claw releasing members) to be caught when the claw members 31a, 31b and 31c are removed.
That is, the notches 32a and 32b are shaped to facilitate pressing with the nail release member.
Since the claw member cannot be moved by sliding only on the inclined portion, the time for releasing the catch of the claw member can be shortened by forming the notches 32a and 32b.
Here, two notches 32a and 32b are prepared and described, but the same effect can be obtained by forming only one in the center.

As described above, the axially outer side of the rotating member 20 is covered with the base cover 60.
As shown in FIG. 8, the base cover 60 is provided with lid portions 61 a, 61 b, 61 c that close the openings 23 a, 23 b, 23 c of the rotating member 20.
Claws 62a, 62b, and 62c are formed at the tips of the lid portions 61a, 61b, and 61c so that when the base cover 60 is pressed against the rotating member 20, it is caught by the openings 23a, 23b, and 23c. It has become.
If it does in this way, nail | claw 62a, 62b, 62c can be easily removed by changing the nozzle | cap | die cover 60. FIG.
Or you may stick the doughnut-shaped board | plate material which is not shown in figure to the flat part 63 of the rotation member 20, and block | close the opening parts 23a, 23b, and 23c.

With reference to FIGS. 15-18, the decomposition | disassembly method of the LED lamp 100 is demonstrated.
When it is necessary to check the semiconductor light emitting element substrates 4a and 4b due to a problem such as lamp non-lighting, the LED lamp 100 needs to be disassembled.
First, the base cover 60 is separated from the rotating member 20 by removing the claws 62 a, 62 b, 62 c of the base cover 60, or by peeling an adhesive portion of a doughnut-shaped plate material (not shown).
The rotating member 20 is rotated to a position where the claw members 31a, 31b, and 31c can be seen through the opened openings 23a, 23b, and 23c of the opened rotating member 20.
A tool or jig such as a flat-blade screwdriver is inserted into the openings 23a, 23b, and 23c from the direction of the arrow in FIG.

At the same time, the tool or jig is moved away from the center of rotation to remove the claw members 31a, 31b, 31c from the flange portion 26.
The claw members 31a, 31b, and 31c are displaced by elastic deformation and come off the receiving portion.
At the same time, the rotating member 20 is moved in a direction away from the fixed member 30 (axially outer side), and the coupling between the rotating member 20 and the fixed member 30 is released.

The connector 44 inserted in the terminals 22a and 22b of the rotating member 20 is removed.
The screws 10 a and 10 b for fixing the fixing member 30 are loosened, and the fixing member 30 together with the latch member 50 is removed from the housing 2.
The cover 3 is removed from the housing 2, the clamp 43 is removed, and the drive substrate 40 is taken out from the housing 2. Thereby, the semiconductor light emitting element substrates 4a and 4b can be taken out and repaired.

In the above embodiment, the claw member is provided on the fixed member side and the receiving part is provided on the rotating member side.
Further, although the concave portion in the positioning structure is provided on the rotating member side and the convex portion is provided on the fixed member side, it may be reversed.

According to the present embodiment, with the above configuration, the irradiation direction can be finely adjusted, and irradiation unevenness due to the directivity of the LED can be corrected with high accuracy.
Since adjustment only needs to rotate a fixed member or a rotation member, the troublesomeness at the time of adjustment can be reduced.

Since the fixing member and the rotating member are coupled by hooking by the elastic deformation of the claw member and the hook of the claw member is removed by a tool such as a screwdriver at the time of disassembly, there is no trouble of removing the screw and tightening again.
Since the claw member is integrally provided on one of the fixed member and the rotating member, there is no worry of losing the removed screw.

In particular, when the rotating member is assembled to the fixed member, it is only necessary to push it in, and the assembly is completed by a one-touch operation.
Further, the repair can be easily performed without destruction, and the cause of failure such as remodeling of the screw can be eliminated.
Since power can be supplied as it is after being mounted on an existing fluorescent lighting fixture, a dedicated lighting fixture is unnecessary, and the lighting device can be configured at low cost.
Of course, it is good also as the electric power feeding structure only for an LED lamp.

DESCRIPTION OF SYMBOLS 1a, 1b Base 2 Case 3 Cover as cover member 5 LED as semiconductor light emitting element
DESCRIPTION OF SYMBOLS 20 Rotating member 22a, 22b Terminal 23a, 23b, 23c Opening part 26 Flange part as a receiving part 28 Concave part 30 Fixing member 31a, 31b, 31c Claw member 51a, 51b Convex part 100 Straight tube type LED lamp 150 Lighting fixture 200 Illuminating device

JP 2012-99411 A Japanese Patent No. 5031072

Claims (8)

A rod-shaped housing;
A translucent cover member extending along the longitudinal direction of the housing and attached to the housing;
A plurality of semiconductor light emitting elements disposed along the longitudinal direction of the casing inside the cover member;
A base that is provided at both ends in the longitudinal direction of the housing, and can be attached to a socket part of a lighting fixture;
In a straight tube type LED lamp having
The base is
A fixing member that is detachably fixed to the housing;
A rotating member having a mounting configuration for the socket portion and rotatable relative to the fixing member;
With
Between the fixing member and the rotating member, there is provided a positioning structure that has a plurality of fixing positions around the axis centered on the longitudinal direction and can be fixed at an arbitrary rotation position,
And between the fixed member and the rotating member, a plurality of claw members are formed on one side, and a receiving part is formed on the other side,
When the rotating member is pressed in the longitudinal direction against the fixing member, the claw member is hooked on the receiving portion, and the fixing member and the rotating member are coupled,
The straight tube type LED lamp, wherein the rotating member is provided with an opening for inserting the claw releasing member from the outside in the longitudinal direction to release the hook of the claw member from the receiving portion. In the straight tube | pipe type LED lamp of Claim 1,
The straight tube LED lamp, wherein the plurality of claw members are arranged at the same distance from the axis. The straight tube type LED lamp according to claim 1 or 2,
The straight tube LED lamp, wherein the claw member is displaced by elastic deformation by being pressed in a direction away from the axis by the claw releasing member, and is disengaged from the receiving portion. In the straight tube | pipe type LED lamp of Claim 3,
The said nail | claw member has a shape for making it easy to press with the said nail | claw cancellation | release member, The straight tube | pipe type LED lamp characterized by the above-mentioned. In the straight tube | pipe type LED lamp as described in any one of Claims 1-4,
The positioning structure is formed on one of the fixed member and the rotating member, and a plurality of recesses are formed around the axis, and the other is formed on the other and elastically deformed when a rotational force is applied. And a convex part that fits into the concave part,
The straight tube type LED lamp, wherein the fixing member and the rotating member are fixed when the convex portion is fitted into the concave portion. In the straight tube | pipe type LED lamp of Claim 5,
The fixing member includes a fixing member main body and a ring-shaped latch member that is detachable from the fixing member main body.
The straight tube type LED lamp, wherein the concave portion is formed on the inner periphery of the rotating member, and the convex portion is formed on the latch member. In the straight tube | pipe type LED lamp as described in any one of Claims 1-6,
The straight tube type LED lamp, wherein the base has a terminal that can be mounted on a fluorescent lamp.   An illuminating device comprising: the straight tube LED lamp according to any one of claims 1 to 7; and a lighting fixture on which the straight tube LED lamp is mounted.

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