TWM459345U - LED sphere bulb lamp - Google Patents

Description

LED bulb

This creation is about a bulb, especially a full-circumference LED bulb.

Please refer to FIG. 1 for the conventional LED bulb 9 of the Republic of China No. M430562. The conventional LED bulb 9 includes a lamp cap 91, a lamp housing 92, an LED substrate 93, and a plurality of LEDs. The die 94 has a first end 921 and a second end 922. The first end 921 of the lamp housing 92 and the second end 922 form a receiving space. 923, the first end 921 of the lamp housing 92 is coupled to the base 91, and the second end 922 of the lamp housing 92 is coupled to the reticle 95. The LED substrate 93 is received in the accommodating space 923 of the lamp housing 92. The LED substrate 93 is coupled to the surface of the second end 922 of the heat sink 92 to couple the LED dies 94 so that the plurality of LED dies 94 can emit light toward the reticle 95.

Since the LED substrate 93 and the reticle 95 cover the plurality of LED dies 94, and the light divergence of the LED dies 94 is diverged in a linear manner, the light divergence angle of the conventional LED bulb 9 is generally Can only reach 120 ° ~ 140 °. Therefore, the conventional LED bulb 9 cannot achieve the requirement of full illumination (that is, the light divergence angle is greater than 180° or even 240° or more), and has a problem that the illumination range is small, so it is necessary to improve.

The main purpose of this creation is to achieve full-circumference of light for conventional LED bulbs. The shortcomings are improved.

In order to achieve the foregoing objectives, the technical means utilized by the present invention and the functions achievable by the technical means include: an LED bulb comprising: a lamp cap having an electrical connection; a heat sink having a ring a wall and a heat conducting plate, the ring wall surrounding an inner space, the opposite ends of the ring wall have a first opening and a second opening, the inner space is connected to the outer space via the first opening and the second opening The first opening is combined with the lamp cap, and the second opening is combined with the heat conducting plate; an LED light emitting element has a light plate, the light plate has a first first bonding surface and a second bonding surface, the first combination The second bonding surface is coupled to the plurality of LED dies; and the reticle has an accommodating space and an opening, and the accommodating space communicates with the external space via the opening, the hood The opening of the heat sink is corresponding to the second opening of the heat sink, and the LED light emitting element is located in the accommodating space of the reticle; wherein the second opening of the heat sink is vertical based on the axis of the ring wall of the heat sink to The cross section in the axial direction is defined as a first cross section having an opening radius, the reticle has a maximum radius perpendicular to the axial direction, and the maximum radius of the reticle is perpendicular to the axial direction The cross section is defined as a second cross section, and the second bonding surface of the light panel of the LED light emitting element is located between the first cross section and the second cross section, and the maximum radius of the photomask is larger than the opening radius of the heat sink.

In the present LED bulb, the LED lighting element 13 is located outside the internal space 122 of the heat sink 12.

In the LED bulb of the present invention, there is an axial distance difference between the second joint surface of the light panel and the first section, and a radial distance difference between the maximum radius of the mask and the opening radius of the heat sink The radial distance difference is preferably 1.2 to 2 times the axial distance difference.

In the LED bulb of the present invention, the ratio of the maximum radius of the mask to the opening radius of the heat sink is preferably 1.4 to 2.5.

In the LED bulb of the present invention, the second joint surface of the light panel may be selected as a curved surface or a plane.

The LED bulb of the present invention can further increase the LED bulb by the position of the LED light emitting element being higher than the ring wall of the heat sink and the maximum radius of the light mask being larger than the radius of the second opening of the heat sink. The light divergence angle has the effect of achieving full-circumference effect.

1‧‧‧LED Bulb

11‧‧‧ lamp holder

111‧‧‧Electrical connection

12‧‧‧ radiator

121‧‧‧Circle wall

122‧‧‧Internal space

123‧‧‧First opening

124‧‧‧second opening

125‧‧‧heat conducting plate

126‧‧‧ joint surface

13‧‧‧LED light-emitting components

131‧‧‧ light board

132‧‧‧ first joint

133‧‧‧Second junction

134‧‧‧LED dies

14‧‧‧Photomask

141‧‧‧ accommodating space

142‧‧‧ openings

9‧‧‧Used LED Bulbs

91‧‧‧ lamp holder

92‧‧‧Light shell

921‧‧‧ first end

922‧‧‧ second end

93‧‧‧LED substrate

94‧‧‧LED dies

95‧‧‧Photomask

A‧‧‧ axial distance difference

R’‧‧‧ radial distance difference

R1‧‧‧ opening radius

R2‧‧‧Max radius

S1‧‧‧ first section

S2‧‧‧ second section

X‧‧‧Axis

Figure 1 is a perspective view of a conventional LED bulb.

FIG. 2 is a schematic perspective view of a preferred embodiment of the present invention (1).

Figure 3 is a perspective view of a three-dimensional combination of the preferred embodiment of the present invention (2).

Figure 4 is a side cross-sectional view of the preferred embodiment of the present invention.

Figure 5 is a side elevational view of the preferred embodiment of the present invention.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The LED bulb 1 of the present invention comprises: a lamp cap 11, a heat sink 12, an LED light-emitting component 13 and a photomask 14 coupled to one end of the heat sink 12, the LED light-emitting component 13 In combination with the other end of the heat sink 12, the photomask 14 covers the LED light-emitting element 13.

The lamp cap 11 has an electrical connection portion 111, and the electrical connection portion 111 can be selected as a screw-type base lamp such as E10, E12, E14, E26, E27 or E40, and a bayonet lamp such as GU10 or GU11. The head, or the multi-faceted reflector lamp holder of MR11 or MR16, which is a conventional technique of a person having ordinary knowledge in the field of the present invention, and is not a major technical feature of the present invention, and is not described herein.

The heat sink 12 has a ring wall 121 and a heat conducting plate 125. The ring wall 121 surrounds an internal space 122 for accommodating components such as a driving circuit board (not shown). The opposite ends of the ring wall 121 have a first opening 123 and a second opening 124. The internal space 122 communicates with the external space via the first opening 123 and the second opening 124. The first opening 123 is coupled to the base 11 and the second opening 124 is The heat conducting plate 125 is combined, and the heat conducting plate 125 has a bonding surface 126 for the LED light emitting element 13 to combine, and the waste heat of the LED light emitting element 13 is transmitted to the heat sink 12 as a whole to improve the heat dissipation efficiency of the overall LED bulb. . In addition, in the present invention, the manner of combining the first opening 123 and the base 11 or the combination of the second opening 124 and the heat conducting plate 125 may be selected as a technique of snapping, screwing, tight fitting or adhesion; In the embodiment, the base 11 and the heat sink 12 are selectively coupled in a snap-fit manner, and the heat conducting plate 125 and the ring wall 121 are coupled in a tight fit manner, but not limited thereto.

The LED light-emitting element 13 has a light-emitting plate 131 having a first joint surface 132 and a second joint surface 133. The first joint surface 132 is combined with the heat-conducting plate 125 of the heat sink 12, and the plurality of LEDs are combined. The die 134 is coupled to the second bonding surface 133. The second bonding surface 133 can be selected as a curved surface or a plane. The plurality of LED dies 134 are preferably arranged around the center of the optical plate 131 to achieve uniformity. Light effect. In more detail, the LED light-emitting component 13 is coupled to the second bonding surface 132 of the heat-conducting plate 125, and the LED light-emitting component 13 is located outside the internal space 122 of the heat sink 12 to prevent the LED light-emitting component 13 from being scattered. The light is not obscured by the ring wall 121 of the heat sink 12.

The reticle 14 has an accommodating space 141 and an opening 142. The accommodating space 141 communicates with the external space through the opening 142. The opening 142 of the reticle 14 is correspondingly coupled with the second opening 124 of the heat sink. The reticle 14 is disposed on the LED illuminating element 13 and the heat conducting plate 125, and the LED illuminating element 13 is located in the accommodating space 141 of the reticle 14; the shape of the reticle 14 can be selected as a spherical type or a drop type Etc., its shape is not limited, this embodiment is a spherical reticle for the following description. In this embodiment, the heat sink 12 and the reticle 14 are screwed in a screwing manner for subsequent disassembly and assembly maintenance work.

Referring to FIG. 4 , in the preferred embodiment of the present invention, the cross section of the second opening 124 of the heat sink 12 perpendicular to the X direction of the axis is defined by the axis X of the ring wall 121 of the heat sink 12 . a first section S1, the first section S1 has an opening radius R1; the reticle 14 has a maximum radius R2 perpendicular to the axis X direction, and the maximum radius R2 of the reticle 14 is perpendicular to the axis X The cross section of the direction is defined as the second cross section S2, and the second bonding surface 133 of the light panel 131 of the LED light emitting element 13 is preferably located between the first cross section S1 and the second cross section S2; thus, the LED light emitting element can be ensured The divergent light of 13 is not blocked by the second opening 124 of the heat sink 12, and at the same time, by the refraction of the photomask 14, the effect of increasing the light divergence angle is achieved.

In the preferred embodiment of the present invention, the maximum radius R2 of the reticle 14 is preferably greater than the opening radius R1 of the heat sink 12. More preferably, the maximum radius R2 of the reticle 14 and the heat sink 12 are The ratio of the opening radius R1 is 1.4 to 2.5. In this way, it is ensured that the light ray 14 can provide a large angle of light divergence to increase the light divergence angle, thereby achieving the effect of full-circumference light.

More preferably, the second bonding surface 133 of the light panel 131 has an axial distance difference A from the first section S1, and the maximum radius R2 of the mask 14 and the opening radius R1 of the heat sink 12 have a radial distance difference R' which is 1.2 times the axial distance difference A Up to 2 times. In this way, the light divergence of the LED bulb of the present invention is not only blocked by the ring wall 121 of the heat sink 12, and the light diverging angle of the LED bulb of the present invention can exceed 180° by the refraction of the mask 14. Even more than 270 °, to achieve the effect of full-circumferential luminous effect.

Accordingly, the LED bulb of the present invention can be disposed outside the heat sink by the LED light-emitting component, so as to prevent the LED light from being blocked by the heat sink, and the maximum radius of the light shield is greater than the heat sink. The second opening radius further increases the light divergence angle of the LED bulb, and has the effect of achieving a full-circumference effect.

Although the present invention has been disclosed in the above-described preferred embodiments, it is not intended to limit the scope of the present invention, and it is still within the spirit and scope of the present invention. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧LED Bulb

11‧‧‧ lamp holder

111‧‧‧Electrical connection

12‧‧‧ radiator

121‧‧‧Circle wall

122‧‧‧Internal space

123‧‧‧First opening

124‧‧‧second opening

125‧‧‧heat conducting plate

126‧‧‧ joint surface

131‧‧‧ light board

132‧‧‧ first joint

133‧‧‧Second junction

134‧‧‧LED dies

14‧‧‧Photomask

141‧‧‧ accommodating space

142‧‧‧ openings

A‧‧‧ axial distance difference

R’‧‧‧ radial distance difference

R1‧‧‧ opening radius

R2‧‧‧Max radius

S1‧‧‧ first section

S2‧‧‧ second section

X‧‧‧Axis

Claims (6)

An LED bulb lamp comprises: a lamp cap having an electrical connection portion; a heat sink having a ring wall and a heat conducting plate, the ring wall surrounding an inner space, the opposite ends of the ring wall having a first An opening and a second opening, the internal space is in communication with the external space via the first opening and the second opening, the first opening is coupled to the base, the second opening is coupled to the heat conducting plate; and an LED lighting element has An optical plate having an opposite first bonding surface and a second bonding surface, the first bonding surface being coupled to the heat conducting plate of the heat sink, the second bonding surface combining the plurality of LED dies; and a reticle The accommodating space is connected to the external space through the opening, and the opening of the reticle is correspondingly coupled to the second opening of the heat sink, and the LED illuminating component is located in the accommodating space of the reticle Wherein the cross section of the second opening of the heat sink perpendicular to the axial direction is defined as a first cross section, and the first cross section has an opening radius, and the photomask is defined by the axis of the annular wall of the heat sink Vertical to the a maximum radius in the direction of the core, a section of the maximum radius of the reticle being perpendicular to the axial direction is defined as a second section, and a second bonding surface of the light panel of the LED illuminating element is located at the first section and the second Between the sections, the maximum radius of the reticle is greater than the opening radius of the heat sink. The LED bulb of claim 1, wherein the LED light emitting element is located outside the inner space of the heat sink. The LED bulb of claim 1, wherein the second joint surface of the light panel has an axial distance difference from the first section, and the maximum radius of the mask and the opening of the heat sink a radial distance difference between the radii, the radial distance difference being the axial distance difference 1.2 times to 2 times. The LED bulb of claim 1, wherein a ratio of a maximum radius of the reticle to an opening radius of the heat sink is 1.4 to 2.5. The LED bulb of claim 1, wherein the second bonding surface of the light panel is a flat surface. The LED bulb of claim 1, wherein the second bonding surface of the light panel is a curved surface.