JP5921863B2 - lamp - Google Patents

Description

  The present invention relates to a lamp using a light emitting element such as an LED (Light Emitting Diode) or an organic EL (ElectroLuminescence) as a light source.

  In recent years, with an increase in output and cost of an LED, which is a kind of semiconductor light-emitting element, a cap-shaped LED lamp that can be used as an alternative to a light bulb has been proposed and put into practical use (for example, Patent Document 1). .

JP 2010-010134 A

By the way, when a lamp using a light emitting element as a light source is used as a substitute for a high output and high luminance lamp such as a HID (High Intensity Discharge) lamp, a high output light emitting element is required. Becomes larger. For this reason, it becomes a subject to provide the lamp | ramp excellent in the heat dissipation characteristic so that a light emitting element can be thermally radiated efficiently.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a lamp having excellent heat dissipation characteristics so that a light emitting element can efficiently dissipate heat.

In order to achieve the above object, the present invention includes a plurality of flat light source units each having a mounting substrate on which a light emitting element is mounted on the surface of the base, and these light source units are axially oriented with the back surface of each base facing inward. A slit-shaped side ventilation hole arranged in the periphery, covered with a light-transmitting globe, and extending in the axial direction to a position corresponding to a gap between the light source units of the globe, Provided is a lamp in which a slit-like side ventilation hole extending in the axial direction is provided at a position corresponding to the mounting substrate of the globe .
Further, in the above configuration, the mounting substrate has a light emitting surface in which a large number of LED elements are arranged and the surface thereof is molded with a resin material, and the mounting substrate has a position corresponding to the mounting substrate in the axial direction. The extending slit-shaped side ventilation holes may have a width smaller than that of the light emitting surface .
Further, the side vent holes provided at positions corresponding to the mounting substrate of the globe may have a smaller width than the side vent holes provided at positions corresponding to the gaps between the light source units .

Furthermore, the globe may have a cylindrical shape, and an end ventilation hole formed by opening an end of the globe may be provided .
The globe may be fixed by being sandwiched from both sides .
Moreover, it is good also as a structure which equips with the said axis line and is provided with a support body and the said several light source unit is supported by the said support body.

  According to the present invention, the lamp includes a plurality of flat light source units each having a mounting substrate on which a light emitting element is provided on the surface of the base, and these light source units are arranged around the axis with the back surface of each base facing inward. A plurality of light source units are covered with a light-transmitting globe, and the globe is provided with ventilation holes. By arranging the plurality of light source units in a ring shape, a high output type lamp such as an HID lamp is provided. A considerable brightness can be obtained, and the heat of the light source unit can be efficiently radiated by the air flowing from the ventilation hole of the globe into the lamp. Therefore, it is possible to provide a lamp having excellent heat dissipation characteristics.

It is a perspective view which shows the external appearance structure of the LED lamp which concerns on this embodiment. It is a figure which shows the external appearance structure of an LED lamp, (A) is a top view, (B) is a side view, (C) is a bottom view. It is III-III sectional drawing of FIG. 2 (B). It is IV-IV sectional drawing of FIG. 2 (A). It is a perspective view which shows the LED lamp of the state which removed the globe. It is a perspective view of a glove.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an external configuration of an LED lamp according to the present embodiment. 2A and 2B are diagrams illustrating an external configuration of an LED lamp, where FIG. 2A is a plan view, FIG. 2B is a side view, and FIG. 2C is a bottom view. 3 is a cross-sectional view taken along the line III-III in FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
As shown in FIG. 1, the LED lamp 1 is a die-type lamp having a base 4 that uses an LED 11 as an example of a light-emitting element as a light source, and can be used by mounting the base 4 to an existing socket. Like the arc tube, it extends like a rod and emits radiated light almost uniformly from the entire periphery, and has a light output that can be used in place of a high-power type existing discharge lamp such as an HID lamp. The LED lamp 1 is a lamp mainly used indoors.

  However, while the discharge lamp is lit with AC power, the light emitting elements such as LEDs are lit with DC power. Therefore, when the LED lamp 1 using the LED 11 as a light source is lit with an AC commercial power supply, DC power is supplied to the LED lamp 1 through a power supply circuit that converts the commercial power supply into DC power. The LED lamp 1 of the present embodiment has a configuration in which a power supply circuit is provided on the socket side without incorporating a power supply circuit, and DC power is input from the socket through a base. In other words, when the LED lamp 1 is mounted on an existing lamp for a discharge lamp, the ballast included in the lamp is replaced with a power supply circuit.

Next, the configuration of the LED lamp 1 will be described in detail.
As shown in FIGS. 1 to 4, the LED lamp 1 includes a base 4 provided at an end of the LED lamp 1, and a support 20 (FIGS. 3 and 4) extending from the base 4 in the longitudinal direction of the LED lamp 1. A plurality of plate-like light source units 10 extending along the support 20, a cylindrical globe 60 covering the periphery of the plurality of light source units 10, and a heat radiating unit 50 provided between the globe 60 and the base 4, And a fixing portion 40 provided at the tip of the support 20.

The base 4 is a screw-in type that is generally called an E-type base, such as the E26 type or E39 type, and is configured according to the existing size, and is screwed into an existing socket. It is possible. The base 4 is supplied with DC power through a socket (not shown) and is supplied in series to each light source unit 10. The base 4 may be a plug-in type.
The base 4 includes a cylindrical shell 5 that is threaded to be screwed into the socket, and an eyelet 7 that is provided on the top of the end of the shell 5 via an insulating portion 6. The eyelet 7 has a shape and dimension that can be attached to the socket.
In addition, a cylindrical insulating cylinder portion 9 (FIG. 4) with one end closed is coupled to the end portion of the base 4 opposite to the eyelet 7.
The support 20 is formed in a column shape extending in the direction of the axis C of the LED lamp 1, and the base end thereof is coupled to the central portion of the end surface 9 </ b> A of the insulating cylinder portion 9 and extends in the axis C direction.

FIG. 5 is a perspective view showing the LED lamp 1 with the globe 60 removed.
As shown in FIGS. 1 to 5, a plurality of light source units 10 are supported around the support 20 by being arranged in an annular shape around the axis C. The LED lamp 1 is configured such that a desired output can be obtained by providing an arbitrary number of light source units 10 supported by a support 20. The shape of the support 20 can be any shape depending on the number of light source units 10 to be supported. As an example, FIGS. 1 to 5 show an LED lamp 1 in which three light source units 10 are arranged in a ring around a support 20. The support 20 is formed in a substantially Y-shaped cross section (FIG. 3) so as to support these three light source units 10. In addition to this, for example, in the case of supporting four light source units 10, the support 20 may be configured to have a cross-shaped cross section, for example.

Specifically, the support 20 includes a column portion 21 that extends to the tip of the LED lamp 1 in alignment with the axis C, and a plurality of convex portions 22 that extend from the outer periphery of the column portion 21 toward the light source unit 10 that is supported. Prepare. Each convex portion 22 extends in the longitudinal direction of the light source unit 10 of the support 20. The support 20 is configured by radially arranging the convex portions 22 corresponding to the number of the light source units 10 to be supported on the outer peripheral portion of the support column 21 at equal intervals.
The support 20 is formed by extruding a material having excellent thermal conductivity, for example, an aluminum alloy material.

As described above, the light source unit 10 emits radiated light using the LED 11 as a light source, and is configured in a modular shape extending in a rectangular shape along the axis C.
The LED lamp 1 of the present embodiment includes three light source units 10, and these light source units 10 face the back surface 13B of each base 13 inward and extend in the same direction as the axis C of the support 20, Around the axis C, they are annularly arranged at equal intervals and supported by the support 20. Thereby, light will be radiated | emitted to the range over the perimeter of the axis line C. FIG.
These light source units 10 all have the same structure and shape. When the LED lamps 1 having different light outputs are configured, the number of light source units 10 corresponding to a desired light output is provided around the support 20. Arranged.
In this LED lamp 1, when the light source unit 10 is arranged around the axis C, a gap S is provided between adjacent light source units 10, which will be described later.

The configuration of the light source unit 10 will be described in detail. As shown in FIG. 5, the light source unit 10 is mounted on the surface 13A with the mounting substrate 12 on which the LEDs 11 are mounted and the mounting substrate 12 sandwiching an electrical insulating member (not shown). And a base 13.
The mounting board 12 is a substantially rectangular plate-like printed wiring board, on the surface of which a plurality of LEDs 11 and an electrode pattern 16 that constitutes a charging unit by soldering lead wires (not shown) are provided. ing.

The LED 11 is formed by arranging a large number of LED elements, for example, in a lattice shape within a substantially rectangular range in plan view, and molding the surface thereof with a thin resin material, and substantially the entire surface emits light. As shown in FIG. 5, a plurality of (three in the illustrated example) LEDs 11 are arranged in series on the mounting substrate 12 with substantially no gap, and these LEDs 11 can obtain linear light emission. . Moreover, the ratio of the area | region which LED11 occupies with respect to the surface area of the mounting board | substrate 12 occupies more than half, and it seems that the surface of the mounting board | substrate 12 light-emits entirely.
The electrode pattern 16 is formed at the end of the mounting substrate 12 and is electrically connected to each LED 11 in series or in parallel through a printed wiring (not shown). Each lead wire extending from the electrode pattern 16 of each mounting substrate 12 passes through the end surface 9A of the insulating cylinder portion 9 and is connected to the base 4. These lead wires are connected with each other between lead wires for positive potential and lead wires for negative potential, and are connected to the base 4 in a state of being bundled into two net lead wires.

The base 13 is a rectangular plate formed by extruding a metal material having high thermal conductivity such as aluminum, for example, and functions as a base for packaging the mounting substrate 12 and a heat sink that receives heat from the LED 11 and dissipates heat. To do.
More specifically, as shown in FIG. 5, the base 13 is formed in a thin plate shape (plate shape with a flat front and back) that can accommodate the mounting substrate 12 therein. The ribs 14 are formed in a frame-like arrangement along the outer edge of each of them, and a mounting portion is formed inside the rib 14 as a recess for accommodating the mounting substrate 12 substantially flush with each other. The mounting portion is formed in a planar shape that is in close contact with the mounting substrate 12, and heat transfer from the mounting substrate 12 to the base 13 is enhanced. The rib 14 is formed with a plurality of notches 14A, and air around the base 13 can flow through the notches 14A.
A bulging portion 13C that bulges outward in the lateral direction is formed at the substantially central portion of both side surfaces of the base 13 in the lateral direction. Each bulging portion 13C has a mounting substrate 12 contained in the mounting portion. A screw 19 for holding down is fixed with a screw.

The light source unit 10 is supported by the support 20 in a state where the back surface 13B of the base 13 is in close contact with the flat front end surface of the convex portion 22 of the support 20, and between the support column 21 and the back surface 13B (FIG. 3). An internal space R extending along the axis C is formed. The internal space R functions as a ventilation path extending from the upper end to the lower end of the back surface 13B of each light source unit 10 and connected to the outside.
The base 13 is fixed by fixing one end in the longitudinal direction to the tip of the support 20 with a screw 22A and the other end to the base end of the support 20 with a screw 22B.

By the way, in this LED lamp 1, in order to obtain a high light output like an HID lamp, each LED element of the LED 11 is increased in output and / or the number of LED elements is increased. For this reason, the individual heat generation of the LED 11 is very large, and the light source unit 10 using the LED 11 as a light source is required to have high heat dissipation (coolability). In particular, the die-type LED lamp 1 is different from a lamp or the like, and it is necessary to process heat generation by itself, so that it is difficult to increase the output.
Therefore, in this embodiment, the heat dissipation of the LED lamp 1 is increased as follows.

As shown in FIGS. 3 and 4, a plurality of radiating fins 15 protruding into the internal space R are provided on the back surface 13 </ b> B of the base 13. The heat radiating fins 15 include inner fins 17 and 17 that extend along both side surfaces of the convex portion 22 of the support 20 on the back surface 13B, and outer fins 18 that extend in the longitudinal direction of the base member 13 along both side edges of the base member 13. 18.
The inner fins 17 and 17 and the outer fins 18 and 18 are provided with a plurality of notches 17A and 18A, respectively, and the air around the base 13 is notched 17A and 18A (FIGS. 4 and 5). Distribution is possible. Since the inner fins 17, 17 are provided along both side surfaces of the convex portion 22, the base fin 13 can be easily positioned on the convex portion 22 by the inner fins 17, 17 when the light source unit 10 is assembled. Easy. Moreover, in the base | substrate 13, the part outside the part between the inner fins 17 and 17 which the convex part 22 closely_contact | adheres becomes a heat radiating surface exposed to the internal space R, and can increase a heat radiating area.

The light source unit 10 is supported by the convex portions 22 formed at three locations radially at equal intervals on the outer peripheral portion of the support column 21 so as to constitute a triangular column-shaped light emitting unit 30 that emits light on each side surface. When the light emitting unit 30 is viewed from the direction of the axis C as shown in FIG. 3, the arrangement of the light source units 10 forms a substantially equilateral triangle. In detail, each light source unit 10 is arrange | positioned so that the clearance gap S which can distribute | circulate air is formed in each vertex part of the said substantially equilateral triangle. The gap S is formed over the entire length of the light source unit 10.
The triangular prisms formed by the three light source units 10 are open at both ends in the axial direction, and openings T communicating with the internal space R of the triangular prism are formed at both ends.
That is, in the light emitting unit 30, air can flow between the periphery of the light emitting unit 30 and the internal space R through each gap S, and the internal space R in the direction of the axis C through the openings T at both ends. Air can be circulated.

The heat radiating portion 50 is made of a metal such as aluminum having high heat radiating properties, and protrudes radially from the cylindrical portion 51 fitted to the base end portion of the support column portion 21 of the support 20 and the outer peripheral portion of the cylindrical portion 51. A plurality of plate-like fins 52 and 53 are provided.
The fins 52 are provided at three locations corresponding to the number of the light source units 10, and each fin 52 passes through the center in the width direction of each substrate 13 in the bottom view as shown in FIG. Extends substantially perpendicular to the surface. The fins 53 are provided at three locations corresponding to the apexes of the light emitting unit 30, and the fins 53 extend in the radial direction so as to overlap the gap S as viewed from the bottom, as shown in FIG.

The fins 52 are formed substantially horizontally such that the upper and lower end surfaces 52A and 52B in the direction of the axis C are substantially orthogonal to the axis C. The fins 53 are also formed substantially horizontally so that the upper and lower end faces 52A and 52B in the direction of the axis C are substantially orthogonal to the axis C. Further, the fins 52 and 53 are formed so that the length protruding in the radial direction becomes smaller toward the base 4 side.
The lower end surfaces 52B and 53B of the fins 52 and 53 are in contact with the end surface 9A of the insulating tube portion 9, and heat is transferred from the base 4 side to the fins 52 and 53.
The fin 52 is formed to be thicker than the fin 53 in order to support the globe 60 as will be described later. As shown in FIG. 2C, the fin 53 is formed thin so as not to block the opening T of the light emitting unit 30.

The fixing portion 40 is integrally formed at the tip of the support body 20. The fixing portion 40 has a plurality of (three in the present embodiment) plate-like fixing pieces 41 extending radially from the outer peripheral portion of the column portion 21 at substantially equal intervals. Each fixed piece 41 is provided in a positional relationship overlapping with each fin 52 of the heat radiating portion 50 in plan view. Further, fins 45 extending radially in the same positional relationship as the fins 53 of the heat radiating portion 50 are formed between the adjacent fixed pieces 41. The fin 45 is formed thin so as not to block the opening T, and the upper portion of the fin 45 protrudes to the outside of the globe 60.
Each fixed piece 41 has a support surface 42 extending substantially horizontally so as to be substantially orthogonal to the axis C. A plate-shaped fixing ring 43 is placed on the support surface 42, and the fixing ring 43 is fixed by a screw 44 that is screwed into each support surface 42. The diameter of the opening 43 </ b> A of the fixing ring 43 through which the support 20 is inserted is formed to be large so as not to block the opening T of the light emitting unit 30.
The globe 60 is fixed by being sandwiched between the fixing ring 43 and the heat dissipation part 50.

FIG. 6 is a perspective view of the globe 60.
The globe 60 is formed in a cylindrical shape whose both ends are open, a cylindrical portion 61 having a size capable of accommodating the light emitting unit 30 therein, and an end ventilation hole 62 formed at both ends in the axial direction of the cylindrical portion 61. , 62 (ventilation holes).
A plurality of groove portions 63 are formed at one end in the axial direction of the cylindrical portion 61 so as to cut out a part of the end of the cylindrical portion 61. The groove portions 63 are provided at three locations corresponding to the arrangement of the fins 52 of the heat radiating portion 50, and the upper portion of the fin 52 including the end surface 52A is engaged with the groove portions 63, so that the globe 60 is positioned in the circumferential direction. Is done. The globe 60 is fixed by being sandwiched between the fins 52 and the fixing ring 43 by pressing the other end in the axial direction by the fixing ring 43 fixed to the fixing portion 40. Further, at the other end of the cylindrical portion 61, the globe 60 is also supported by the tip portion of each fixed piece 41 coming into contact with the inner peripheral surface of the cylindrical portion 61.

On the outer peripheral surface of the cylindrical portion 61, a slit-like side ventilation hole 65 (ventilation hole) extending in the axial direction of the cylindrical portion 61 and a slit-like side ventilation hole 66 (a width smaller than the side ventilation hole 65 ( Small ventilation holes) are formed.
The side ventilation holes 65 are formed at three locations corresponding to the positions of the gaps S of the light emitting unit 30, and are formed so that air can directly flow through the gaps S via the side ventilation holes 65. ing. The length of the side ventilation hole 65 is formed to be equal to the length of the gap S.
The side ventilation holes 66 are formed at three locations corresponding to the positions of the LEDs 11 of each light source unit 10, extend substantially in parallel with the side ventilation holes 65, and air is supplied to each LED 11 through the side ventilation holes 66. Is formed so that it can be directly distributed.
The widths of the side ventilation holes 65 and 66 are formed to a size that does not allow human fingers to enter, and preferably have a width of 1 cm or less, so that the fingers can be prevented from touching the light emitting unit 30.
The globe 60 is made of a frosted glassy resin having translucency. As a result, the light emitted from the light emitting unit 30 is scattered when passing through the globe 60 and the entire globe 60 can be caused to emit light substantially uniformly, resulting in uneven light emission in the vicinity of the side ventilation holes 65 and 66. Can be suppressed.

In the present embodiment, the light source unit 10 is annularly arranged around the support column 21 so as to have an internal space R to form a triangular prism-shaped light emitting unit 30, and the light emitting unit 30 is provided with end ventilation holes at both ends. Since the cylindrical globe 60 provided with 62 and 62 is covered, an air flow W1 (FIG. 4) is introduced into the inside of the globe 60 from the end ventilation holes 62 and 62, and this air flow W1 is the internal space R of the light emitting unit 30. And it can distribute | circulate between the light source unit 10 and the inner peripheral part of the globe 60, and can thermally radiate the heat_generation | fever of the light emission part 30 efficiently. Moreover, since the inner fin 17 and the outer fin 18 that protrude into the internal space R are provided on the back surface 13B of the light source unit 10, heat can be radiated efficiently.
In addition, by providing the fin 45 and the heat radiating part 50 at both ends of the support body 20 in the vicinity of the end ventilation holes 62 and 62, the air flowing through the end ventilation holes 62 and 62 is surrounded by the fin 45 and the heat radiating part 50. Therefore, the heat of the support body 20 can be efficiently radiated through the fins 45 and the heat radiating portion 50.

  Further, since the gap S is provided at each apex portion of the light emitting unit 30 and the side ventilation holes 65 are formed on the side surface of the globe 60 corresponding to the position of the gap S, the air flow W2 is on the side as shown by arrows in FIG. It is possible to circulate between the internal space R and the outside of the globe 60 through the partial ventilation hole 65 and the gap S. For this reason, the heat of the light emission part 30 can be efficiently radiated with the airflow W2. Furthermore, since the side ventilation hole 66 is provided at a position corresponding to the LED 11 of the globe 60, air can be circulated into and out of the globe 60 through the side ventilation hole 66, and heat in the vicinity of the LED 11 can be efficiently radiated. be able to.

  Further, since the plurality of light source units 10 are annularly arranged around the axis C, brightness equivalent to a high output type lamp such as an HID lamp can be obtained. Further, since the LED 11 and the mounting substrate 12 on which the LED 11 is mounted are unitized as the light source unit 10, the output of the LED lamp 1 can be changed by changing the number of the light source units 10 to be used. , 200 W, 300 W, or 400 W HID lamps can be manufactured using a common light source unit 10 with different brightness. Further, since the plurality of light source units 10 are supported around the support 20 with the back surface 13B of each base 13 facing inward, and the internal space R through which air flows is provided on the back surface 13B side of each base 13, the LED lamp Without increasing the size of the heat sink 1, it is possible to form a heat dissipation structure that can efficiently dissipate heat from the LED 11 and the mounting substrate 12 from the back surface 13B of the base 13. Therefore, it is possible to provide the LED lamp 1 that can replace the high-power type HID lamp in terms of brightness and size by using the LED 11 as a light source. The LED lamp 1 can be manufactured easily and at low cost.

  As described above, according to the embodiment to which the present invention is applied, the LED lamp 1 includes the plurality of flat light source units 10 having the mounting substrate 12 on which the LEDs 11 are provided on the surface 13A of the base 13. These light source units 10 are annularly arranged around the axis C with the back surface 13B of each base 13 facing inward, and the plurality of light source units 10 are covered with a light-transmitting globe 60, and end ventilation holes are formed in the globe 60. 62, 62 and side ventilation holes 65, 66 are provided, and the heat of the light source unit 10 is generated by the air flowing into the LED lamp 1 through the end ventilation holes 62, 62 and the side ventilation holes 65, 66. Therefore, the LED lamp 1 having excellent heat dissipation characteristics can be provided.

Further, the end of the cylindrical globe 60 is opened to form end ventilation holes 62, 62, and the heat of the light source unit 10 is efficiently transferred by the airflow W1 flowing from the end ventilation holes 62, 62 into the LED lamp 1. Since the heat can be dissipated, the LED lamp 1 having excellent heat dissipation characteristics can be provided.
Further, a side ventilation hole 65 is provided at a position corresponding to the gap S between the plurality of light source units 10 of the globe 60, and the air flow W <b> 2 that flows from the side ventilation hole 65 to the gap S and the periphery of the light source unit 10. Since the heat of the light source unit 10 can be efficiently radiated, the LED lamp 1 having excellent heat radiation characteristics can be provided.

Further, since the side ventilation holes 65 are slits along the gap S between the light source units 10, the side ventilation holes 65 are formed in a slit shape in accordance with the shape of the gap S, and the side ventilation holes 65 are not so large. The air can be efficiently passed through the gap S through the side ventilation holes 65. For this reason, the heat of the light source unit 10 can be efficiently radiated while preventing a finger from entering the side ventilation holes 65.
Further, since the side ventilation holes 66 are provided at positions corresponding to the mounting board 12 of the globe 60, the heat of the light source unit 10 can be efficiently radiated by the air flowing from the side ventilation holes 66 to the mounting board 12 side. Therefore, the LED lamp 1 having excellent heat dissipation characteristics can be provided.
Further, since the support body 20 is provided so as to coincide with the axis C of the LED lamp 1 and the plurality of light source units 10 are supported on the support body 20, the heat of the light source unit 10 is efficiently transferred by the air flowing in the direction of the axis C. Since the heat can be dissipated, the LED lamp 1 having excellent heat dissipation characteristics can be provided.

In addition, the said embodiment shows the one aspect | mode which applied this invention, Comprising: This invention is not limited to the said embodiment.
In the said embodiment, although the edge part ventilation holes 62 and 62, the side part ventilation hole 65, and the side part ventilation hole 66 were demonstrated in the globe 60, this invention is not limited to this. Any one of at least the end ventilation holes 62, 62, the side ventilation holes 65, and the side ventilation holes 66 may be provided.
In the above embodiment, the light emitting unit 30 is described as having a triangular prism shape, but the present invention is not limited to this. For example, the light emitting unit 30 is not limited to a triangular prism, and may be formed of a substantially regular polygonal column. The light source units 10 are arranged so that a gap S is formed at the apex of the substantially regular polygonal column. Correspondingly, ventilation holes may be formed on the side surfaces of the globe 60.
In the above-described embodiment, the cap-type lamp including the base 4 has been described. However, the present invention is not limited to this, and a configuration including a plug-in type connector instead of the base 4 may be used.
In the above embodiment, the LED lamp 1 that is used indoors and does not have a waterproof structure on the mounting board 12 and the charging unit has been described as an example. However, the present invention is not limited to this, and the mounting is not limited thereto. You may provide the globe 60 of this invention in the LED lamp provided with the waterproof structure which covers the board | substrate 12 and a charging part.

1 LED lamp (lamp)
10 Light source unit 11 LED (light emitting element)
DESCRIPTION OF SYMBOLS 12 Mounting board 13 Base | substrate 13A Front surface 13B Back surface 20 Support body 60 Globe 62 End ventilation hole (ventilation hole)
65 Side ventilation holes (ventilation holes)
66 Side ventilation holes (ventilation holes, small ventilation holes)
C axis S S clearance

Claims (6)

A plurality of flat light source units each having a mounting substrate on which a light emitting element is mounted are provided on the surface of the base. These light source units are arranged around the axis line with the back surface of each base facing inward, and the plurality of light source units are translucent. Covered with glove having sex,
A slit-like side ventilation hole extending in the axial direction at a position corresponding to a gap between the light source units of the globe,
A lamp having a slit-like side ventilation hole extending in the axial direction at a position corresponding to the mounting substrate of the globe . The mounting substrate has a light emitting surface formed by arranging a large number of LED elements and molding the surface thereof with a resin material,
2. The lamp according to claim 1 , wherein a slit-like side ventilation hole extending in the axial direction at a position corresponding to the mounting substrate of the globe has a width smaller than that of the light emitting surface . The side ventilation hole provided at a position corresponding to the mounting substrate of the globe has a smaller width than the side ventilation hole provided at a position corresponding to a gap between the light source units. Or the lamp | ramp of 2 description. The lamp according to any one of claims 1 to 3, wherein the globe has a cylindrical shape and is provided with an end ventilation hole formed by opening an end of the globe . The lamp according to claim 4 , wherein the globe is fixed by being sandwiched from both sides .   The lamp according to any one of claims 1 to 5, wherein a support is provided so as to coincide with the axis, and the plurality of light source units are supported on the support.

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