JP2016149307A - Straight pipe type led lamp and attachment method of straight pipe type led lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a straight pipe type LED lamp capable of simplifying an attachment work, and an attachment method of the straight pipe type LED lamp.SOLUTION: A straight pipe type LED lamp 200 includes: a printed circuit board 10 in which a plurality of LEDs is arrayed; a support plate 20 to the lower surface of which the printed circuit board 10 is attached; and a tube 30 attached to the support plate 20 and covering the support plate 20 and the printed circuit board 10 from below. In the straight pipe type LED lamp, on the upper surface of the support plate 20, provided is a locking part 40 that is in a starting state where a width is made wider than a predetermined width, that is in an insertion state where the width is made narrower than the predetermined width when external force is applied, and that is in a locking state where the width is made wider than the predetermined width by elasticity when the external force is removed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a straight tube type LED lamp including a support plate having a printed board attached to the lower surface and a tube covering from below, and a method for attaching the straight tube type LED lamp.

In recent years, straight tube LED lamps that emit light from a plurality of LEDs are becoming popular as illumination devices that replace fluorescent lamps.
Straight tube LED lamps have the advantage of lower power consumption and longer product life compared to fluorescent lamps, so each company is promoting research and development and commercialization. The replacement of lamps with LED lighting devices is progressing.

  And this applicant has already applied for the patent about the straight tube | pipe type LED lamp 100 (patent document 1).

JP 2009-16493 A

As shown in FIG. 5, a straight tube type LED lamp 100 described in Patent Document 1 includes a printed circuit board 10 on which a plurality of LEDs are arranged, a support plate 20 to which the printed circuit board 10 is attached, and a lower surface of the support plate 20. A tube 30 is attached and covers the printed circuit board 10.
Further, as shown in FIG. 6, connectors 51 having electrodes 51 a are attached to both ends of the tube 30 and the printed board 10.
Such a straight tube type LED lamp 100 is mounted on a lamp T attached to the ceiling, and the straight tube LED lamp 100 and the lamp T function as an LED lighting device.

The straight tube type LED lamp 100 is supported by the lamp T while being supplied with power via the socket portion of the lamp T.
Such a straight tube type LED lamp 100 is standardized in length and diameter depending on brightness as in the case of a conventional fluorescent lamp, and there are standards such as 20 type, 40 type, and 110 type.

However, when replacing the conventional fluorescent lamp with the straight tube type LED lamp 100, since the glow lamp and the ballast necessary for normal operation are not necessary for the fluorescent tube, the straight tube type LED lamp 100 does not require them. There is a problem that the inside of the lamp T has to be rewired, and the installation work of the straight tube type LED lamp 100 is troublesome.
Here, the present applicant has completed the present invention by focusing on the fact that a glow lamp and a ballast are not required for the straight tube type LED lamp 100, and repeating the inventive idea.

  Accordingly, an object of the present invention is to provide a straight tube type LED lamp and a method for mounting the straight tube type LED lamp that can simplify the installation work.

  In order to achieve the above object, a straight tube type LED lamp (200) according to claim 1 of the present invention includes a printed circuit board (10) in which a plurality of LEDs are arranged, and the printed circuit board (10) is a lower surface. A straight tube type LED lamp comprising: a support plate (20) attached to the support plate; and a tube (30) attached to the support plate (20) and covering the support plate (20) and the printed circuit board (10) from below. In (200), the initial state is wider than the predetermined width, and when an external force is applied, the insertion state is narrower than the predetermined width, and when the external force is removed, the locked state is wider than the predetermined width by elasticity. A locking portion (40) is provided on the upper surface of the support plate (20).

  Further, in the straight tube type LED lamp (200) according to claim 2, when the locking portion (40) is applied with a force of a predetermined force or more downward, the locking state is released and the insertion is performed. It is characterized by becoming a state.

  Further, in the straight tube type LED lamp (200) according to claim 3, the locking portion (40) is provided with a hinge (42) that acts so as to be closed by a spring, and is closed without the external force being applied. In this state, the hinge (42) is arranged such that the shaft (42a) is positioned at the upper end.

  Moreover, the straight tube | pipe type LED lamp (200) of Claim 4 is equipped with the thin plate wider than the said tube (30) on the upper surface side of the said support plate (20), It is characterized by the above-mentioned.

  Further, in the straight tube type LED lamp (200) according to claim 5, a power cord connected to the printed circuit board (10) and supplying power to the printed circuit board (10) has an upper surface side of the support plate (20). It was drawn to

  The straight tube type LED lamp (200) according to claim 6 can be attached by directly forming the hole (1a) having the predetermined width in the ceiling (1) to which no lamp is attached, 40), an external force is applied to bring the locking portion (40) into the inserted state, and the external force is removed while being inserted through the hole (1a), and the straight LED lamp (200) is moved to the ceiling (1) side. By pressing, the locking part (40) is brought into the locked state.

  The straight tube type LED lamp (200) according to claim 7 includes a printed circuit board (10) on which a plurality of LEDs are arranged, and a support plate (20) attached to the lower surface of the printed circuit board (10). A straight tube type LED lamp (200), which is attached to the support plate (20) and covers the support plate (20) and the printed circuit board (10) from below, and projects upward At least two engaging portions (40) having a piece (43) and a claw (44) formed on the upper end side surface of the protruding piece (43) and having elasticity are spaced apart from each other on the upper surface of the support plate (20). It is characterized by being provided.

  Moreover, the attachment method of the straight tube | pipe type LED lamp (200) of Claim 8 is a hole (1a) in the position corresponding to the said latching | locking part (40) of the ceiling (1) where the lamp is not attached. The straight tube type LED lamp (200) is pressed to the ceiling (1) side while being directly formed and the locking portion (40) is aligned with the hole (1a), and the inner end of the hole (1a) The projecting piece (43) is bent by bringing the claw (44) into contact therewith, and the straight tube type LED lamp (200) is further pressed toward the ceiling (1) side so that the claw (44) is pushed into the hole (1a). And the protruding portion (43) is released from bending to bring the locking portion (40) into a locked state.

  Here, the symbols in the parentheses indicate corresponding elements or corresponding matters described in the drawings and the embodiments for carrying out the invention described later.

According to the straight tube type LED lamp of the first aspect of the present invention, for example, as in the straight tube type LED lamp of the third aspect, it is wider than the predetermined width in the initial state and narrower than the predetermined width when an external force is applied. Since the locking portion that becomes the locking state wider than the predetermined width by elasticity when the external force is removed is provided on the upper surface of the support plate, for example, by providing a hole with a predetermined width on the ceiling, A straight tube type LED lamp can be directly attached to the ceiling without using a lamp.
In other words, when the lighting itself is newly installed, the straight tube type LED lamp does not require a lamp, so that the product cost can be reduced by that amount, and at the same time, the installation work can be simplified and the work cost can be reduced. .
On the other hand, when changing from a fluorescent lamp to a straight tube type LED lamp, it is not necessary to rewire, and it is only necessary to remove the lamp for the fluorescent lamp, leading to simplification of replacement work.
Here, since the straight tube type LED lamp has a long life, the straight tube type LED lamp can be so-called fitted to the ceiling without considering replacement after construction.

  According to the straight tube type LED lamp of the second aspect, in addition to the function and effect of the invention of the first aspect, the locking portion is locked when a force greater than a predetermined force is applied downward. Since the state is released and the insertion state is established, the straight tube LED lamp after installation can be replaced without destroying the ceiling or the straight tube LED lamp.

  According to the straight tube type LED lamp of the fourth aspect, in addition to the operational effects of the first to third aspects of the invention, a thin plate wider than the tube is provided on the upper surface side of the support plate. When replacing a fluorescent lamp with a straight tube type LED lamp, it is possible to hide the trace of the lamp attached to the ceiling.

  Further, according to the straight tube type LED lamp of the fifth aspect, in addition to the operation and effect of the invention of the first to fourth aspects, the power cord connected to the printed circuit board and supplying power to the printed circuit board is provided on the support plate. Since it was pulled out to the upper surface side, forming a hole in the ceiling and storing the power cord in the back of the ceiling through the hole gives a clean impression and is excellent in design.

  Further, according to the method of mounting the straight tube type LED lamp according to claim 6, in addition to the function and effect of the invention according to claim 1, a hole having a predetermined width is directly formed in the ceiling where the lamp is not mounted, Since external force is applied to the locking part and the locking part is inserted, the external force is removed while being inserted through the hole, and the straight tube type LED lamp is pushed to the ceiling side to lock the locking part. When replacing the lamp with a straight tube type LED lamp, the installation work is simplified as compared with the conventional case, and the product cost and the construction cost can be reduced.

  Further, as in the straight tube type LED lamp according to claim 7, an elastic locking portion having a protruding piece protruding upward and a claw formed on the upper end side surface of the protruding piece is provided on the upper surface of the support plate. Even if at least two are provided apart from each other, the straight tube type LED lamp can be easily attached directly to the ceiling by the method described in claim 8.

  Note that the above-mentioned Patent Document 1 is completely provided with a locking portion whose width changes due to elasticity as in the straight tube LED lamp and the straight tube LED lamp mounting method of the present invention. Not listed.

It is sectional drawing which shows the start state of the straight tube | pipe type LED lamp which concerns on 1st embodiment of this invention. It is sectional drawing which shows the insertion state of the straight tube | pipe type LED lamp shown in FIG. It is sectional drawing which shows the state (locking state) which attached the straight tube | pipe type LED lamp shown in FIG. 1 to the ceiling. It is sectional drawing which shows the straight tube | pipe type LED lamp which concerns on 2nd embodiment of this invention. It is a perspective view which shows the straight tube | pipe type LED lamp which concerns on a prior art example. It is an external view which shows the straight tube | pipe type LED lamp which concerns on a prior art example, (a) is a top view, (b) shows a side view.

(First embodiment)
With reference to FIG. 1 thru | or FIG. 3, the straight tube | pipe type LED lamp 200 which concerns on 1st embodiment of this invention is demonstrated.
The straight tube type LED lamp 200 includes a printed circuit board 10, a support plate 20, a tube 30, and a locking portion 40, and does not particularly require the locking portion 40 and a lamp. is there.
The same parts as those shown in the conventional example are denoted by the same reference numerals.

A plurality of LEDs 11 are connected in series on the surface of the printed circuit board 10, and a plurality of Zener diodes are connected to these LEDs 11 in parallel with the anode side of the cathode of the LED 11 (so-called reverse parallel). The One set of the LED 11 and the Zener diode is arranged in a line in the longitudinal direction of the printed circuit board 10. The number of the LEDs 11 varies depending on the total length of the straight tube type LED lamp 200 and may be arranged in, for example, two rows, and the arrangement method is not particularly limited.
Then, power is supplied from the power source to the LED 11 and the Zener diode.
The voltage applied to the printed circuit board 10 itself is an alternating voltage, but is converted into a direct current by the diode stack, and the current is controlled to be constant regardless of the voltage by the constant current diode.

The support plate 20 is composed of aluminum rails, the printed circuit board 10 is directly attached to the lower surface, and the LEDs 11 are exposed downward.
Locking grooves 21 are formed on the left and right sides of the support plate 20, and the upper surface of the support plate 20 is flat.
Further, side walls 22 are formed at both left and right end portions of the lower surface of the support plate 20 so as to extend in the longitudinal direction. The printed circuit board 10 is disposed between the side walls 22. The printed board 10 is fixed to the support plate 20 by screws, but may be fixed by an adhesive or the like.

The tube 30 has a substantially semicircular cross section and is transparent (may be translucent). The tube 30 covers the lower surface of the printed circuit board 10 and the support plate 20 with the upper surface of the support plate 20 exposed, and is located on the inner side in the left-right direction. The left and right ends of the tube 30 that is folded back to have the shape of the claw 44 are fitted into the locking grooves 21 formed in the support plate 20, thereby being attached to the support plate 20.
Further, a film (not shown) that diffuses the light of the LED 11 is attached to the inside of the tube 30.

The locking part 40 includes an attachment base 41 and a hinge 42.
The mounting base 41 has a substantially U-shaped cross-section with an upper opening, and the bottom is screwed to the upper surface of the support plate 20.
Hinges 42 are attached to the outside of the left and right side surfaces of the attachment base 41 by screws.
Specifically, one blade of the hinge 42 is screwed to the side surface of the mounting base 41, and the other blade moves freely without being fixed. A shaft 42a of the hinge 42 is a spring, and a force acts so that the hinge 42 is closed by the elasticity of the spring. And in the state which was not applied with external force but was closed with the spring, it is attached with respect to the attachment base 41 so that the axis | shaft 42a of hinge 42 may become an upper end.

  In addition, a power cord is drawn out to the upper surface side of the support plate 20, which is connected to the printed board 10 and supplies power to the printed board 10.

Next, a method for mounting the straight tube type LED lamp 200 configured as described above will be described.
First, a rectangular hole 1a having a predetermined width is directly formed in the ceiling 1 to which no lamp is attached. This ceiling 1 part may be a position where no lighting device is originally attached, or may be a position where a fluorescent lamp is removed.

  The predetermined width is wider than the minimum width of the locking portion 40 when the hinge 42 of the locking portion 40 is opened at about 180 degrees and narrower than the diameter of the tube 30. Further, in the initial state where no external force is applied to the locking portion 40, the locking portion 40 is wider than a predetermined width.

Here, as shown in FIG. 2, an external force is applied to the hinge 42 of the locking portion 40 so that the hinge 42 is widened and raised so that the insertion state is narrower than a predetermined width.
And external force is removed, inserting the latching | locking part 40 in the hole 1a of the ceiling 1 as it is.
Further, the straight tube type LED lamp 200 is pressed to the ceiling 1 side, and the locking portion 40 is locked. In this locked state, the locking portion 40 becomes wider than a predetermined width due to the elasticity of the spring. Thus, the straight tube type LED lamp 200 according to the present embodiment is attached to and supported by the ceiling without a lamp.

The strength of the spring is such that the locked state is not released even if an earthquake of a normal magnitude occurs.
On the other hand, when a force equal to or greater than a predetermined force is applied downward, the locking portion 40 is released from the locked state and can be pulled out from the hole 1 a of the ceiling 1.
Here, the hinge 42 is expanded in the locked state compared to the initial state, but the hinge 42 may be expanded in the same locked state as the initial state.

  A power supply hole is also formed in the ceiling 1 at the same time, and a power cord is inserted through the power supply hole and arranged behind the ceiling 1.

According to the straight tube type LED lamp 200 configured and attached as described above, the insertion state is wider than the predetermined width in the initial state and narrower than the predetermined width when an external force is applied, and the external force is removed. Since the locking portion 40 that is locked to be wider than the predetermined width by elasticity is provided on the upper surface of the support plate 20, by providing the hole 1a with the predetermined width in the ceiling 1, the ceiling directly A straight tube type LED lamp 200 can be attached to 1.
In other words, when the lighting itself is newly installed, the straight tube type LED lamp 200 does not require a lamp, so that the product cost can be reduced and the installation work can be simplified and the work cost can be reduced. is there.
On the other hand, when changing from a fluorescent lamp to a straight tube type LED lamp 200, it is not necessary to rewire, and it is only necessary to remove the lamp for the fluorescent lamp, leading to simplification of replacement work.

  Moreover, since the latching | locking part 40 will be in the insertion state, if the force more than predetermined force is applied toward the downward direction, a latching state will be cancelled | released and it will be attached without destroying the ceiling 1 or the straight tube | pipe type LED lamp 200 The subsequent straight tube LED lamp 200 can be replaced.

  In addition, since the power cord connected to the printed circuit board 10 and supplying power to the printed circuit board 10 is drawn to the upper surface side of the support plate 20, a hole 1a is formed in the ceiling 1 and the back of the ceiling 1 is formed through the hole 1a. Storing the power cord creates a clean impression and is excellent in design.

(Second embodiment)
Next, with reference to FIG. 4, the straight tube | pipe type LED lamp 200 which concerns on 2nd embodiment of this invention is demonstrated. In addition, the same code | symbol was attached | subjected to the same part as 1st embodiment.
The difference of this embodiment from the first embodiment is the locking portion 40, and the other components are the same as those of the first embodiment.

The locking portion 40 in the present embodiment is provided with two sets of a protruding piece 43 protruding upward and a claw 44 formed on the upper end side surface (left and right outer sides) of the protruding piece 43, and is generally U-shaped with the upper portion opened as a whole. It has become a shape. That is, two protruding pieces 43 having claws 44 are provided apart from each other.
Moreover, the latching | locking part 40 is made of synthetic resin, has elasticity, and bends right and left when an external force is applied.
The height of the protruding piece 43 to the lower surface of the claw 44 is substantially equal to the thickness of the ceiling 1 and can be fitted into the hole 1a of the ceiling 1 from the inside.
Such a locking portion 40 is attached to the upper surface of the support plate 20.

Next, a method for mounting the straight tube type LED lamp 200 configured as described above will be described.
First, the hole 1a having the same width as the distance between the locking portions 40 is directly formed on the ceiling 1 to which no lamp is attached.
And the straight tube | pipe type LED lamp 200 is pressed on the ceiling 1 side, arrange | positioning the latching | locking part 40 in the hole 1a.
The claw 44 is brought into contact (sliding) with the inner end portion of the hole 1a to bend the protruding piece 43 inward, and the straight tube type LED lamp 200 is pressed against the ceiling 1 side so that the claw 44 comes out above the hole 1a. The bending of the protruding piece 43 is released, and the locking portion 40 is set to the locked state.

Even when the straight tube type LED lamp 200 configured and mounted in this way is replaced with the straight tube type LED lamp 200 from the conventional fluorescent lamp, the installation work is simplified and the product cost and Construction costs can be reduced.
Naturally, the cost can be reduced even when a lighting device is newly installed.

In the first embodiment, the attachment base portion 41 and the hinge 42 of the locking portion 40 are coupled by screwing, but the present invention is not limited to this, and other coupling methods may be used. Moreover, the attachment base 41 and the hinge 42 may be integrally formed.
Moreover, although the latching | locking part 40 will be released from the latching state and will be in the insertion state if the force more than predetermined force is applied toward the downward direction, it is not restricted to this. Since the straight tube type LED lamp 200 has a long life, the straight tube type LED lamp 200 can be so-called fitted to the ceiling 1 without considering replacement after construction.

  Moreover, the latching | locking part 40 does not need to have the hinge 42 in 1st embodiment, If a width changes with elasticity and the straight tube | pipe type LED lamp 200 does not fall easily after attachment, it will be. Good.

  In addition, a thin plate wider than the tube 30 may be provided on the upper surface side of the support plate 20. Thereby, when replacing | exchanging from the conventional fluorescent lamp to the straight tube | pipe type LED lamp 200, the trace of the lamp attached to the ceiling 1 can be hidden.

  Further, although the power cord connected to the printed circuit board 10 and supplying power to the printed circuit board 10 is drawn out to the upper surface side of the support plate 20, the power supply method is not limited to this.

  In the second embodiment, one ceiling hole 1 a is formed for the two protruding pieces 43, but one hole 1 a may be formed for one protruding piece 43 and the claw 44.

1 Ceiling 1a Hole 10 Printed Circuit Board 11 LED
DESCRIPTION OF SYMBOLS 20 Support plate 21 Locking groove 22 Side wall 30 Tube 40 Locking part 41 Mounting base 42 Hinge 42a Shaft 43 Projection piece 44 Claw 51 Connector 51a Electrode 100 Straight tube type LED lamp 200 Straight tube type LED lamp T Lamp

Claims (8)

A printed circuit board on which a plurality of LEDs are arranged;
A support plate having the printed circuit board attached to the lower surface;
In a straight tube type LED lamp provided with a tube attached to the support plate and covering the support plate and the printed board from below,
A locking portion that is wider than the predetermined width in the initial state and is inserted into a width that is narrower than the predetermined width when an external force is applied, and that is elastically locked to a width wider than the predetermined width when the external force is removed. Is provided on the upper surface of the support plate.   2. The straight tube type LED lamp according to claim 1, wherein the locking portion is released from the locking state when the force of a predetermined force or more is applied downward and enters the insertion state. The locking portion is
It has a hinge that works to close with a spring,
The straight tube type LED lamp according to claim 1 or 2, wherein the hinged shaft is disposed at an upper end in a closed state where no external force is applied.   The straight tube type LED lamp according to any one of claims 1 to 3, further comprising a thin plate wider than the tube on an upper surface side of the support plate.   5. The straight tube type LED according to claim 1, wherein a power cord connected to the printed circuit board and supplying power to the printed circuit board is drawn out to an upper surface side of the support plate. lamp. A straight tube type LED lamp mounting method according to claim 1,
Forming the hole of the predetermined width directly in the ceiling to which no lamp is attached;
Removing external force while applying the external force to the locking part to put the locking part in the insertion state and passing through the hole;
A straight tube type LED lamp mounting method, wherein the straight tube type LED lamp is pressed against a ceiling to bring the locking portion into the locked state. A printed circuit board on which a plurality of LEDs are arranged;
A support plate having the printed circuit board attached to the lower surface;
In a straight tube type LED lamp provided with a tube attached to the support plate and covering the support plate and the printed board from below,
A straight part characterized in that at least two engaging portions having elasticity are provided on the upper surface of the support plate, each of which has a protruding piece protruding upward and a claw formed on an upper end side surface of the protruding piece. Tube LED lamp. It is the attachment method of the straight tube | pipe type LED lamp of Claim 7, Comprising:
A hole is directly formed at a position corresponding to the locking portion of the ceiling where the lamp is not attached,
The straight tube type LED lamp is pressed to the ceiling side while arranging the locking portion in alignment with the hole, the claw is brought into contact with the inner end portion of the hole, and the protruding piece is bent,
Further, the straight tube type LED lamp is pushed to the ceiling side, the claw is protruded above the hole, the bending of the protruding piece is released, and the locking portion is brought into a locked state. How to install the lamp.