JP5706984B2 - Light bulb type lighting device - Google Patents

Description

  The present invention relates to a light bulb type lighting device.

2. Description of the Related Art Conventionally, there has been proposed a lighting device using a light emitting diode (hereinafter abbreviated as LED) having characteristics of small size, power saving, and long life (see, for example, Patent Document 1).
Hereinafter, a conventional lighting device will be described with reference to FIG. In the figure, 91 is an LED, a printed wiring board 92 on which the LED 91 is mounted, a container 93 in which the printed wiring board 92 is housed, a connection portion 94 connected to a socket for a light bulb, and the LED 91. A power supply unit 95 for generating a power supply, and the power supply unit 95 is housed inside the container 93, and heat is dissipated between the LED 91 and the container 93 to the outer surface of the heat transfer body 96 and the container 93. By providing the fin 97, the heat dissipation of the LED 91 is improved.
Further, a connecting body 98 formed in a cylindrical shape is disposed so as to surround the power supply unit 95, and insulation between the power supply unit 95 and the container 93 is ensured.

JP 2006-40727 A

  In the conventional lighting device described above, the power source unit 95 is housed in the vessel body 93, and the connecting body 98 for ensuring insulation between the power source unit 95 and the vessel body 93 is provided. Although provided, the device for hold | maintaining the said connection body 98 in the said container 93 is not considered.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a light bulb-type lighting device that can prevent the attachment body from rotating.

  The bulb-type lighting device according to the present invention has an LED light source, a cavity, a heat radiating part that radiates heat from the LED light source, and a power supply part that is energized to the LED light source. A cylindrical mounting body to be inserted; a base held at the lower end of the mounting body; connected to an external power supply; and a lead wire connecting the base and the power supply unit; A claw receiving portion is provided at the end on the base side, the attachment body is made of an electrically insulating material, has a claw portion on an outer peripheral surface, and the claw portion is fitted into the claw receiving portion, thereby The attachment body is prevented from rotating with respect to the heat radiating portion.

  The bulb-type lighting device according to the present invention is characterized in that the attachment body includes a holding portion that holds the power supply portion while holding the power supply portion on an inner wall.

  According to the present invention, it is possible to prevent the attachment body from rotating.

It is a perspective view of the attachment body which shows Embodiment 1 of this invention. It is a top view of the attachment body of FIG. It is sectional drawing of the AA line at the time of accommodating a live part in the attachment body of FIG. It is a perspective view of the to-be-attached body attached to the attachment body of FIG. It is a disassembled perspective view of the illuminating device provided with the attachment body of FIG. It is explanatory drawing which shows the principal part in case a live part is inserted in the attachment body of FIG. It is a perspective view of the attachment body which shows Embodiment 2 of this invention. It is a perspective view of the attachment body which shows Embodiment 3 of this invention. It is a perspective view of the to-be-attached body attached to the attachment body of FIG. It is sectional drawing of the illuminating device in a prior art.

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to FIGS.
1 is a perspective view of an attachment body showing Embodiment 1 of the present invention, FIG. 2 is a top view of the attachment body of FIG. 1, and FIG. 3 is an A- view when a live part is accommodated in the attachment body of FIG. FIG. 4 is a perspective view of a body to be mounted attached to the mounting body of FIG. 1, and FIG. 5 is an exploded perspective view of a lighting device including the mounting body of FIG. Further, in the vertical direction shown in the following description, the direction in which the live part is accommodated in the mounting body is a downward direction with respect to a top view, and the horizontal direction is a direction perpendicular to the vertical direction.

  In the figure, T1 is a cylindrical mounting body having a ring shape in cross section made of an electrically insulating material (for example, PBT (polybutylene terephthalate)), and a housing part 3 for housing a live part 2 such as a power supply component. And a base holding part 4 for holding a base 42 for connection to a socket for a light bulb.

The accommodating portion 3 is formed in a cylindrical shape, and a flat holding surface 31 that abuts the attached body 5 such as a heat sink is extended in the circumferential direction on the outer wall, and the inside of the accommodating portion 3 is the live part 2 is formed, and a base holding portion 4 is continuously provided at the lower end portion.
The accommodating portion 3 includes an attaching portion 32 attached to the attached body 5 and an avoiding portion 34 for avoiding a non-insulated state between the live part 2 and the attached body 5 generated at the notch 33. And a claw portion 35 for preventing the attachment body T1 from rotating with respect to the attachment body 5 and an adhesive (not shown) for attaching the housing portion 3 to the attachment body 5 flow out. Therefore, a groove 36 for storing the adhesive and a holding part 37 for holding the live part 2 are provided.

  The mounting portion 32 is formed by providing at least one notch 33 with a length such that elasticity is imparted to a part of the housing portion 3 along the vertical direction. Is provided with a flange portion 38 that is integrally formed by protruding in a hook shape inclined downward.

  The avoidance part 34 is formed integrally with the housing part 3 and is provided so as to avoid the non-insulated state of the live part 2 and the attached body 5 generated at the notch 33. The gap α between the avoidance portion 34 and the attachment portion 32 is formed longer than the length of protrusion of the flange portion 38 provided in the attachment portion 32.

At least one claw portion 35 is formed on the outer wall of the housing portion 3, which is connected to the holding surface 31 and formed in a rectangular parallelepiped shape that is long in the vertical direction.
The groove 36 is formed along the outer wall of the housing portion 3 with a depth to accumulate the adhesive so that the adhesive that attaches the housing portion 3 to the mounted body 5 does not flow out.

As shown in FIG. 2, the holding part 37 is an inner wall of the housing part 3 and is provided so as to project and hold the lower part of the live part 2.
The live part 2 is configured by mounting a plurality of power supply components 22, 22, 22... On a rectangular circuit board 21 as shown in FIG. And have a length.

And the said live part 2 is inserted in the said attachment body T1, and the said live circuit part 21 is stably hold | maintained in the said accommodating part 3 of the said attachment body T1 by pinching the said circuit board 21 with the said holding | maintenance part 37. Can be held.
Further, as shown in FIG. 3, the heat radiating member as the mounted body 5 includes a disk-shaped heat radiating plate 51 in which the light source module 61 is screwed to the center of the upper surface, and the circumferential direction of the edge of the heat radiating plate 51. And a cylindrical holding cylinder 54 that holds the radiating fins 53, and the inside of the holding cylinder 54 accommodates the mounting body T1. A cavity is formed. The heat radiating plate 51, the flange portion 52, the heat radiating fins 53, and the holding cylinder 54 are made of a metal material such as aluminum and are integrally formed.
And the through-holes 55 and 55 are provided in the center part of the said heat sink 51, and the lead wire (not shown) etc. which connect the said live part 2 and the said light source module 61 penetrate the said through-holes 55 and 55. doing.

  Further, on the outer peripheral surface of the holding cylinder 54, a plurality of the radiation fins 53, 53, 53,... That are long in the vertical direction of the holding cylinder 54 are arranged in parallel in the circumferential direction of the holding cylinder 52. The dimension from the outer peripheral surface of the holding cylinder 54 to the edge of the heat radiating fin 53 decreases from one end to the other end on the heat radiating plate 51 side.

  Further, a stepped portion 56 that locks the flange portion 38 provided in the attachment portion 32 is provided in the upper portion of the holding cylinder 54 in the circumferential direction. The height and width of the flange portion 38 are large enough to lock the attachment portion 32.

Further, at the lower part of the holding cylinder 54, a claw receiving portion 57 for accommodating the claw portion 35 provided in the attachment portion 32 has a height of the claw receiving portion 57 higher than the height of the claw portion 35, and At least one claw receiving portion 57 having a larger width than the claw portion 35 is provided.
Then, the attachment portion 32 is pressed by the inner wall of the holding cylinder 54 by inserting the attachment body T <b> 1 holding the live part 2 in the housing portion 3 into the attachment body 5. Since the mounting portion 32 is given elasticity by the notch 33, the mounting portion 32 is bent in the direction of the live part 2 by pressing, and the bent mounting portion 32 is temporarily accommodated in the gap α. When the mounting body T1 is inserted to a position where the mounting portion 32 reaches the stepped portion 56, the bending of the mounting portion 32 returns to the original state, and the flange portion 38 is locked to the stepped portion 56. Therefore, while attaching and holding the said attachment body T1 to the said to-be-attached body 5, the insulation of the said live part 2 and the said to-be-attached body 5 can be ensured.

Further, together with the holding, the claw portion 35 is fitted into the claw receiving portion 57, whereby the attachment body T1 can be prevented from rotating with respect to the attachment body 5.
Furthermore, the attachment body T1 can be firmly held on the attached body 5 by using the adhesive together with the holding. Further, the groove portion 36 can prevent the adhesive that flows when the attachment body T1 is inserted into the attachment body 5 from flowing out.
As shown in FIG. 5, the lighting device 9 includes the mounting body T1, the live part 2, the mounted body 5, a light source module 61 provided with a light source such as an LED, and the light source module 61. A dome-shaped translucent part 63 to be covered, a reflecting part 62 provided with a hole for fitting the light source module 61, and a cylindrical shape connected to the live part 2 and connected to an external power source The base part 42 is configured.

The light source module 61 has an LED (not shown) mounted on a rectangular ceramic substrate. The light source of the light source module 61 is not limited to an LED, but may be an LD, an organic EL, an inorganic EL, a color lamp, or the like. The circuit board 21 and the power supply component 22 which comprise the said live part 2 may be selected and used according to a light source.
The reflecting portion 62 is made of a reflective material such as PET (polyethylene terephthalate), and is provided with a hole for fitting the light source module 61, and is held in contact with the upper surface of the heat radiating plate 51.

  The translucent part 63 is made of a translucent material such as PC (polycarbonate), and is formed in a dome shape. The edge of the translucent part 63 abuts on the flange 52 of the heat radiating plate 51 and It is held by the heat sink 51.

  The light source module 61 is provided with a screw hole 61a for screwing to the heat radiating plate 51, and a screw is attached to the heat radiating plate 51 of the mounted body 5 with a heat conductive sheet (not shown) interposed therebetween. Stopped. Further, the light source module 61 is fitted to the light source module 61 and held on the heat radiating plate 51, and the light transmitting part 63 is held in contact with the flange 52 so that the light source module 61 is While being protected from the outside by the translucent part 63, light can be transmitted. Further, the light emitted from the light source module 61 can be efficiently emitted to the outside by the reflection unit 62 and the light transmission unit 63.

  And the said base holding | maintenance part 4 is provided in a row by the lower end of the said accommodating part 3, has an up-down direction length shorter than the said base 42, and an outer diameter smaller than the internal diameter of the said accommodating part 3, A slit 41 for inserting a lead wire (not shown) for electrical connection with a power supply unit (not shown) is provided in the vertical direction with a thickness larger than the thickness of the lead wire. Further, the outer wall of the base holding part 4 is subjected to screw processing for screwing to the base 42.

  The base 42 has a cavity on the inner side and is closed on one end side. The inner wall of the base 42 is threaded to be screwed to the base holding portion 4, and the outer wall of the base 42 has the same shape as, for example, an E26 screw-type base for mounting on a socket. Is formed. When the screwing direction of the screw processing and the attaching direction to be attached to the socket are opposite, the base 42 is difficult to come off from the base holding part 4 when the lighting device 9 is attached to or detached from the socket. The outer wall of the base 42 serves as a one-pole terminal 43, and an other-pole terminal 44 is projected from one end of the mouth, insulated from the one-pole terminal on the outer peripheral surface. The one-pole terminal 43 and the other-pole terminal 44 are electrically connected to the live part 2 through the lead wires.

  Then, the attachment body T <b> 1 that accommodates the live part 2 is held by the attached body 5, and the base 42 is screwed to the base holding part 4. Further, the light source module 61 is screwed with the heat conducting sheet sandwiched between the heat radiating plate 51 of the mounted body 5, the reflecting portion 62 is held on the heat radiating plate 51, and the light transmitting portion 63 is It is held on the heat sink 51.

  The one-pole terminal 43 and the other-pole terminal 44 of the base 42 are electrically connected to the live part 2 by the lead wires, and the live part 2 includes the light source module 61 and the through hole. The lead wires are electrically connected through 55.

  When the light source module 61 is energized, the heat from the light source module 61 and the heat from the live part 2 can be radiated through the attached body 5. Furthermore, since the attachment body T1 is attached by the attachment portion 32, it is difficult to come off, and since the live part 2 is shielded from the attachment body 5 by the housing portion 3, insulation is ensured.

  In addition, a light source module 61 is provided at one end of the heat radiating fin 53 on the heat radiating plate 51 side via the heat radiating plate 51, and the attachment body T1 is provided at the other end. Further, the attachment body T1 is provided. Since the base 42 is held by the base holding part 4, the high temperature light source module 61 is located below the low temperature base 42 when installed on a ceiling or the like. The flow of outside air can be guided to the base 42 from above.

  In addition, although the attachment body of Embodiment 1 shows Embodiment which the two said attachment parts 32 were formed in the position which has the diameter length of the said accommodating part 3, as shown in FIG. The number of the mounting portions 32 provided on the slab is not limited to two. It is only necessary that at least one attachment portion 32 is provided in the accommodating portion 3, and three or more attachment portions 32 may be provided. As in the present embodiment, by providing two mounting portions 32 at a position having the diameter length of the housing portion 3, the mounting body 3 can be mounted as compared with the case where the number of the mounting portions 32 is one. It can hold | maintain more firmly with respect to the body 5, and can prevent the shakiness to an up-down direction and a horizontal direction. Further, when three or more mounting portions 32 are provided, the mounting body T1 can be held on the mounted body 5 more stably.

  FIG. 6 is an explanatory view showing the main part when the live part 2 is inserted into the mount T1, and A shows the mount T1 before the live part 2 is inserted. , B shows a state where the live part 2 is inserted.

  As shown in FIG. 2, four holding portions 37 are provided on the bottom of the inner wall of the housing portion 3. However, as shown in FIG. By holding the part 2, the number of the holding parts 37 can be reduced. Specifically, the avoidance portion 34 and the attachment portion 32 are formed at a distance shorter than the diameter of the accommodating portion 3, and the inner wall of the avoidance portion 34 constitutes the live part 2. And the holding portion 37 is provided on the bottom of the inner wall of the housing portion 3, whereby the circuit board 21 is held with another edge held therebetween. When the avoidance part 34 holds the live part 2, the holding part 37 is not essential, but can be more firmly held by providing it. Since the avoidance unit 34 also serves to hold the live part 2, it is possible to reduce the manufacturing cost without requiring additional parts of the holding unit 37.

  And although the said nail | claw part 35 is provided in the said accommodating part 3, and the said nail | claw receiving part 57 is provided in the said to-be-attached body 5, you may each be provided conversely. That is, the claw portion 35 is provided in the attached body 5, and the claw receiving portion 57 is provided in the housing portion 3. Even if it is the said structure, rotation of the said attachment body T1 and the said to-be-attached body 5 can be prevented.

  Moreover, although the said groove part 36 is provided in the said accommodating part 3, you may be provided in the said to-be-attached body 5. FIG. Even if it is the said structure, the outflow of the said adhesive agent can be prevented.

(Embodiment 2)
The second embodiment of the present invention will be described below with reference to FIG.
FIG. 7 is a perspective view of an attachment body showing the second embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
T2 is a cylindrical mounting body having a ring-shaped cross section made of an electrically insulating material, and the housing part 3 for housing the live part 2 such as a power supply component, and the above-mentioned for connecting to a socket for a light bulb. The base holding part 4 is configured to hold the base 42.
And the said accommodating part 3 is provided with the attaching part 71 attached to the said to-be-attached body 5, the said nail | claw part 35 for preventing rotation, and the groove part 36 which stores the said adhesive agent.

  At least one mounting part 71 is formed to protrude to a part of the housing part 3 so as to have elasticity along the vertical direction. The flange portion 38 is provided so as to project integrally in the shape of a flange that is inclined toward the bottom. A gap β between the housing portion 3 and the mounting portion 71 is formed to be longer than the protruding length of the flange portion 38 provided in the mounting portion 71.

  Then, by inserting the attachment body T <b> 2 holding the live part 2 in the housing part 3 into the attached body 5, the attachment part 71 is pressed by the holding cylinder 54, and the attachment part 71. Since the elasticity is imparted, the flange portion 38 is accommodated in the gap β, and the attachment portion 71 bends in the direction of the live part 2. Then, the bending of the mounting portion 71 is restored, and the flange portion 38 is locked to the stepped portion 56, so that the mounting body T2 is attached to and held on the mounted body 5 and the live power is supplied. The insulation between the portion 2 and the attached body 5 can be ensured.

  The attachment body of the second embodiment is an embodiment in which two attachment portions 71 are formed at a position having the diameter length of the accommodation portion 3 as shown in FIG. The number of the mounting portions 71 provided on the slab is not limited to two. It is only necessary that at least one mounting portion 71 is provided in the housing portion 3, and three or more mounting portions 71 may be provided. As in the present embodiment, by providing two mounting portions 71 at a position having the diameter length of the housing portion 3, the mounting body 3 is mounted as compared with the case where there is one mounting portion 71. It can hold | maintain more firmly with respect to the body 5, and can prevent the shakiness to an up-down direction and a horizontal direction. Further, when three or more mounting portions 71 are provided, the mounting body T2 can be held on the mounted body 5 more stably.

  Further, the inner diameter of the holding cylinder 54 of the mounted body 5 to which the mounting body T2 is attached is larger than the outer diameter of the housing portion 3. When the inner diameter of the holding cylinder 54 is smaller than the distance between the mounting parts 71 when the two mounting parts 71 are formed at positions having the diameter length of the housing part 3, the mounted body 5 A groove portion (not shown) corresponding to the width and height of the mounting portion 71 is formed.

(Embodiment 3)
The third embodiment of the present invention will be described below with reference to FIGS.
8 is a perspective view of an attachment body showing Embodiment 3, and FIG. 9 is a perspective view of an attachment body attached to the attachment body of FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
T3 is a cylindrical mounting body having a ring-shaped cross section made of an electrically insulating material. The base holding part 4 is configured to hold the base 42.

And the said accommodating part 3 is provided with the attaching part 72 and the groove part 36 which stores the said adhesive agent.
Then, as shown in FIG. 8, the mounting portion 72 protrudes in a thin trapezoidal shape on the outer wall of the housing portion 3 in the turning direction for rotating the mounting body T3 with respect to the mounted body 5. It is the convex part currently formed. Further, as shown in FIG. 9, the attached body 5 is provided with an L-shaped recess 58 for fitting and locking the mounting portion 72. One end of the L-shape of the recess 58 reaches the opening edge of the holding cylinder 54 and has a depth sufficient to fit the mounting portion 72. In addition, the L-shape of the recess 58 is formed so as to be bent and extend along the circumferential direction after extending in the vertical direction of the holding cylinder 54 from the one end. The other L-shaped other end of the recess 58 is formed so as to become narrower toward the tip.

  And the said attaching part 72 of the said attachment body T3 holding the said live part 2 in the said accommodating part 3 is fitted to the said recessed part 58 formed in the edge of the said to-be-attached body 5, and the said recessed part 58 of The attachment body T3 is rotated along the L shape. The mounting portion 72 is fitted and locked at the other L-shaped tip of the concave portion 58, so that the mounting body T3 is mounted and held on the mounted body 5, and the live part 2 and the covered portion are also mounted. The insulating property of the attachment body 5 can be ensured.

  A hole (not shown) having a size sufficient to attach the mounting portion 72 may be further provided at the other L-shaped tip of the recess 58. The mounting portion 72 of the mounting body T3 is fitted into the recess 58, the mounting body T3 is rotated along the L-shape of the recess 58, and further rotated from the other L-shaped tip of the recess 58. By moving, the mounting portion 72 is pressed by the concave portion 58 and bent. The bending of the mounting portion 72 returns to the original state, and the mounting portion 72 is locked in the hole portion, so that the mounting body T3 is mounted and held on the mounted body 5, and the live part 2 and the The insulating property of the mounted body 5 can be ensured.

In addition, at least one attachment portion 72 is formed in the accommodating portion 3, and the attachment portion 72 can be more firmly held when the attachment portion 72 has two or more configurations.
In addition, the description of the up-down direction in the said Embodiment 1-3 is used for convenience, Comprising: At the time of actual use of the illuminating device provided with an attachment body and this attachment body, the direction different from the said up-down direction It may be used in.

Moreover, as an example of the illuminating device in the first to third embodiments, it is an illuminating device in the form of a light bulb as shown in the figure, but even in other illuminating devices, a live part such as a power supply circuit is provided. The present invention can be applied as long as the received mounting body is locked while securing the insulation with the mounted body.
The present invention is not limited to the above-described first to third embodiments, and various modifications and applications are possible without departing from the scope of the present invention.

T1, T2, T3 Attachment body 2 Active part 3 Housing part 4 Base holding part 5 Attachment body 9 Illuminating device 31 Holding surface 32 Attachment part 33 Notch 34 Avoidance part 35 Claw part 36 Groove part 37 Holding part 38 Gutter part 41 Slit 42 Base 51 Heat Dissipating Plate 52 Gutter 53 Radiating Fin 54 Holding Tube 55 Through Hole 56 Stepped Part 57 Claw Receiving Part 58 Recess 61 Light Source Module 61a Screw Hole 62 Reflecting Part 63 Translucent Part 71 Mounting Part 72 Mounting Part

Claims (2)

An LED light source;
A heat radiating part having a cavity and radiating heat from the LED light source;
A power supply unit that is energized to the LED light source is housed therein, and a cylindrical mounting body that is inserted into the cavity;
A base held at the lower end of the mounting body and connected to an external power source;
A lead wire connecting the base and the power supply unit,
The heat dissipating part has a claw receiving part at the base side end part,
The mounting body is made of an electrically insulating material, has a claw portion on the outer peripheral surface,
The light bulb-type lighting device according to claim 1, wherein the claw portion is fitted to the claw receiving portion to prevent the attachment body from rotating with respect to the heat radiating portion. The bulb-type lighting device according to claim 1, wherein the attachment body includes a holding portion that holds the power supply portion while holding the power supply portion on an inner wall.