JP3173328U - Light bulb type LED lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a light bulb shape capable of improving the appearance design by diffusing light with a cover and uniformly illuminating the cover, improving the appearance design, and improving the heat dissipation performance by the cover An LED lamp is provided.
A cap, a light emitting module, and a cover are provided. The light emitting module 20 is divided into a light source unit 21 having an LED 23 and an electronic component mounting unit 26. An opaque blindfold cover 31 covering the periphery of the electronic component mounting portion 26 of the light emitting module 20 with the cover 30, and a transparent translucent cover 36 coupled to the blindfold cover 31 and covering the light source portion 21 of the light emitting module 20 Divide into A streak pattern formed by convex portions or concave portions is applied to the inner surface or outer surface of the translucent cover body 36.
[Selection] Figure 1

Description

  Although the light emitted from the LED of a light-emitting type LED lamp, particularly a light emitting module having a strong light directivity, is linear, the cover is made uniform by the action of the cover itself covering the light emitting module. In addition, the present invention relates to a light bulb type LED lamp that is capable of diffusing light in a wide range and improving the appearance design by making it difficult to see the light emitting module as its internal structure from the outside of the cover.

  A light bulb type LED lamp as a conventional example includes a base connected to a power source such as a socket, a light emitting module electrically connected to the base, and a cover covering the light emitting module. In general, the cover was made of transparent glass.

  On the other hand, as a preceding example, a bulb-type LED lamp has been proposed in which a plurality of convex portions are scattered on the inner surface of a transparent or translucent cover member that houses a light emitting portion provided with an LED (see, for example, Patent Document 1). ). In the light bulb-type LED lamp disclosed in Patent Document 1, a light emitting unit in which a plurality of LEDs are arranged side by side on a flat top surface of a cylindrical body as a lighting circuit is provided, and provided on the outer periphery of the light emitting unit. The cover member is attached to the light emitting portion by screwing the screw on the inner surface of the cover member into the screw. Further, this Patent Document 1 also describes that glass or plastic can be used as the material of the cover member.

  As another preceding example, a reflecting mirror is attached to a light source substrate covered with a diffusion cover, and highly directional light emitted from LEDs mounted side by side on a flat plate surface of the light source substrate is surrounded by a reflecting mirror. There has been proposed a light bulb-type LED verification instrument that directs and diffuses the reflected light to the surroundings through the diffusion cover (see, for example, Patent Document 2).

Utility Model Registration No. 3150914 Utility Model Registration No. 3169310

  According to the above-described conventional bulb-type LED lamp, light with high directivity is emitted by the characteristics of the LED provided in the light source unit of the light emitting module. For this reason, only a part of the cover made of glass, that is, a part of the cover facing the LED shines strongly, and it is difficult to uniformly illuminate the cover. There was a problem that it was difficult to uniformly illuminate around the bulb-type LED lamp. Moreover, since the internal structure from the outside through the glass cover, specifically, the light emitting module is clearly visible and conspicuous, the appearance design of the light bulb type LED lamp is impaired. .

  Moreover, in the prior example proposed by patent document 1, the light emission part by which several LED was arranged side by side on the flat top surface of the cylindrical body as a lighting circuit is equivalent to said light emitting module. Furthermore, in the thing of patent document 2, since the light reflected with the reflective mirror permeate | transmits only a part of diffusion cover around a reflective mirror, a diffused cover can be made to shine uniformly and light can be diffused in a wide range. There was a problem that I could not.

  The present invention has been made in view of the above problems, and the cover structure covering the light emitting module is devised even though the light emitted from the LED of the light emitting module with strong light directivity is linear. By taking the cover, the cover can be illuminated uniformly to diffuse the light over a wide range, and the light emitting module that is the internal structure of the cover is difficult to see from the outside of the cover, improving the appearance design. An object of the present invention is to provide a light bulb type LED lamp.

  Further, the present invention provides a wide light by shining the cover uniformly even if the cover of the bulb-shaped LED lamp is formed in a spherical or candle flame shape, or the cover is elongated. An object of the present invention is to provide a light bulb-type LED lamp that can be diffused in a range and has an improved appearance design by making it difficult to see the light-emitting module as its internal structure from the outside of the cover.

  Furthermore, the present invention allows the cover to uniformly shine and diffuse light over a wide range, and makes the light emitting module, which is the internal structure of the cover, difficult to see from the outside of the cover, thereby improving the appearance design. An object of the present invention is to provide a light bulb type LED lamp in which the structure itself adopted for improvement is also useful for improving the heat dissipation performance.

  A light bulb type LED lamp according to the present invention includes a base connected to a power source, a light emitting module electrically connected to the base, and a cover attached to the base and covering the light emitting module. The light emitting module is divided into a light source unit having an LED and an electronic component mounting unit on which an electronic component necessary for causing the LED of the light source unit to emit light is mounted. An opaque blindfold cover body that covers the periphery of the electronic component mounting portion of the module and a transparent or translucent transparent cover body that is coupled to the blindfold cover body and covers the light source portion of the light emitting module are divided into On at least one side of the inner surface or outer surface of the light cover body, a streak pattern formed by a large number of convex portions or concave portions having optical characteristics to diffusely reflect light is applied. That. The “striped pattern formed by the convex portions or concave portions” referred to here includes convex portions or concave portions extending in a streak shape. Accordingly, the ridges and recesses are included in the “striated pattern formed by the protrusions or recesses”. Further, the streaks may be formed over substantially the entire surface of at least one of the inner surface and the outer surface of the translucent cover body.

  According to this device, the translucent cover body constituting the cover in cooperation with the blindfold cover body has a streak pattern formed by convex portions or concave portions on the inner surface or the outer surface, and the streaked pattern has a large number of streaks. Since it is formed by the convex portion or the concave portion, light is diffusely reflected by the translucent cover body or light is transmitted through the translucent cover body while being irregularly reflected. Therefore, when the LED of the light emitting module is turned off, the external light hitting the transparent cover body is irregularly reflected, and when the LED is turned on, the light is diffused and diffused through the transparent cover body to make the transparent cover body uniform. Let it glow. Therefore, it becomes difficult to see the internal structure of the translucent cover body, specifically, the light emitting module covered with the cover, and the appearance design of the light bulb shaped LED lamp is improved. Further, the light-bulb-shaped LED may be configured such that the blindfold cover body that forms the cover in cooperation with the translucent cover body covers the electronic component mounting portion of the light emitting module and makes the electronic component mounting portion invisible from the outside. It helps to improve the design of the appearance of the lamp.

  In this invention, you may employ | adopt the structure that the streak pattern is formed in a part of the translucent cover body which faces LED of the surface of at least one side of the inner surface or the outer surface of the said translucent cover body. Even if this configuration is adopted, only the part of the cover facing the LED does not shine strongly, and the cover can be illuminated uniformly.

  Further, a large number of convex portions or concave portions forming a streak pattern on one inner surface or outer surface of the translucent cover body are exhibited by the translucent cover body in order to increase the inner surface or screen area of the translucent cover body. The heat radiation performance is improved, which helps to improve the durability of the LED included in the light emitting module.

  In the present invention, the streaks are formed on at least one side of the inner surface or outer surface of the translucent cover body, extend in the axial direction of the surface, and are arranged in the circumferential direction of the translucent cover body. It may be a vertical stripe pattern formed by a large number of ridges or ridges. Further, a plurality of ridges or grooves formed on at least one side of the inner surface or outer surface of the translucent cover body, extending in the circumferential direction of the surface, and arranged in the axial direction of the translucent cover body The horizontal streak pattern formed by may be used. Further, it may be a die cut streak pattern formed on at least one of the inner surface and the outer surface of the translucent cover body.

  Among the above-described streaks, in particular, when a vertical streak is selected, the translucent cover body is injection-molded using a mold comprising an outer mold and an inner mold which is the counterpart mold. It is desirable to adopt a configuration in which it is made of a resin molded body having a possible shell shape or dome shape. By adopting this configuration, the vertical stripe pattern of the translucent cover body can be manufactured at low cost using a simple mold consisting of an outer mold and an inner mold at the same time when the translucent cover body is molded with resin. Will be able to.

  In the present invention, the light emitting module has a light source portion having an elongated substrate that is long in the axial direction of the cover in which LEDs are mounted at a plurality of positions in the longitudinal direction, and the electronic component mounting portion is one end in the longitudinal direction of the elongated substrate. It is possible to adopt a configuration that is fixed to the part. By adopting this configuration, even in a light bulb type LED lamp having an elongated cover, it becomes easy to uniformly illuminate the translucent cover body of the elongated cover and enhance its design. In addition, even if the light bulb type LED lamp is a so-called nail ball or candle sphere having a cover shaped like a long and thin candle flame, the translucent cover body can be easily illuminated uniformly, It becomes possible to make it difficult to see the internal structure.

  As described above, according to the present invention, although the light emitted from the LED of the light emitting module having a strong light directivity is linear, the cover is uniformly formed by the action of the cover itself covering the light emitting module. Further, since the light emitting module which is the internal structure is difficult to see from the outside of the cover, it is possible to provide a light bulb-type LED lamp with improved appearance design. This effect is further achieved by the fact that the blind cover body that constitutes the cover in cooperation with the translucent cover body covers the electronic component mounting portion of the light emitting module and makes the electronic component mounting portion invisible from the outside. Be encouraged. In addition, a large number of convex portions or concave portions forming a streak pattern on one inner surface or outer surface of the translucent cover body increase the area of the inner surface or outer surface of the translucent cover body, and thus are exhibited by the translucent cover body. The effect of improving the heat dissipation performance, which helps to improve the durability of the LED included in the light emitting module, is also exhibited.

1 is a side view of a light bulb type LED lamp according to an embodiment of the present invention. It is a disassembled side view of the same light bulb type LED lamp. It is the fragmentary sectional view which expanded and illustrated the composition of the joint part of a translucent cover body and a blindfold cover body. It is the schematic side view which fractured | ruptured and showed the translucent cover body. It is a bottom view of the part which follows the VV line of FIG. It is the bottom view which showed the modification of the translucent cover body. It is the bottom view which showed the other modification of the translucent cover body. It is the bottom view which showed the other modification of the translucent cover body. It is the example which formed the stripe pattern in a part of translucent cover body, and is the schematic side view which fractured | ruptured and showed the translucent cover body.

  FIG. 1 is a side view of a light bulb type LED lamp according to an embodiment of the present invention, and FIG. 2 is an exploded side view of the light bulb type LED lamp.

  The bulb-type LED lamp of FIG. 1 is attached to a base 10 connected to an electrical socket as a power source installed on a wall surface or ceiling of a room, a light emitting module 20 electrically connected to the base 10, and the base 10. And a cover 30 that covers the light emitting module 20.

  The base 10 in the illustrated example is a screw-in type. In the axial direction, the cover 30 is divided into an opaque blindfold cover body 31 made of a resin molded body and a translucent cover body 36 having translucency. The translucent cover body 36 is coupled to the blindfold cover body 31, and the blindfold cover body 31 is fixed to the base 10. At the location where the blindfold cover body 31 and the base 10 are fixed, the cylindrical neck portion (not shown in FIG. 1) provided in the blindfold cover body 31 is fitted inside the neck portion 11 of the base 10 and the overlapping portion. It is joined with. Further, the light-transmitting cover body 36 is coupled to the blindfold cover body 31 to form an elongate hollow cover 30 that forms a throat shape.

  FIG. 3 is an enlarged partial cross-sectional view illustrating the configuration of the connecting portion between the translucent cover body 36 and the blindfold cover body 31. As shown in the figure, stepped receiving portions 32 and protrusions 33 are formed in a ring shape on the inner peripheral surface of the blindfold cover body 31. On the other hand, the translucent cover body 36 includes a short cylindrical portion 37 that can be fitted inside the blindfold cover body 31, and a ring-shaped protrusion 38 is formed on the outer periphery of the cylindrical portion 37. . Then, at the joint portion between the translucent cover body 36 and the blindfold cover body 31, a wiring board 27 (described later) provided in the electronic component mounting portion 26 of the light emitting module 20 is provided in the receiving portion 32 as shown in FIG. The ring-shaped protrusion 38 on the translucent cover body 36 side that is mounted does not sway between the wiring board 27 and the protrusion 33 on the blindfold cover body 31 side, and is sandwiched without rattling. Has been.

  When the translucent cover body 36 is coupled to the blindfold cover body 31, the cylindrical portion 37 of the translucent cover body 36 is pushed into the blindfold cover body 31, and the projection 38 on the cover body 31 side gets over the projection 38. As described above, the protrusion 38 on the light transmitting cover body 36 side is sandwiched between the wiring board 27 and the protrusion 33 on the blind cover body 31 side. Further, when the translucent cover body 36 is removed from the blind cover body 31, the translucent cover body 36 is tilted or pulled up so that the projection 38 on the translucent cover body 36 side has a ring-like shape on the blind cover body 31 side. The protrusion 33 is moved over, and the protrusion 38 is pulled out from between the wiring board 27 and the protrusion 33 on the blind cover body 31 side. 3 is fitted inside the neck 11 of the base 10 as described above.

  As shown in FIG. 1 or FIG. 2, the light emitting module 20 is divided into a light source unit 21 having an LED 23 and an electronic component mounting unit 26. In the illustrated light emitting module 20, the light source unit 21 forms a hollow polygonal column (for example, a hollow triangular column) by arranging a plurality of (for example, three) elongated rectangular substrates (for example, elongated substrates) 22, and each elongated substrate is formed. The LED 23 is mounted at a plurality of locations in the longitudinal direction 22 (two locations in the illustrated example). And the wiring board 27 with which the electronic component mounting part 26 is equipped is fixed to the one end part of the several elongate board | substrate 22 formed in the hollow polygonal column. Note that another wiring substrate 24 is fixed to the other end of the plurality of elongated substrates 22. In the electronic component mounting portion 26, an electronic component 28 necessary for causing the LED 23 as a light source to emit light is mounted on the wiring substrate 27 fixed to one end portion of the plurality of elongated substrates 22. In the illustrated light emitting module 20, the electrical cord 12 (see FIG. 2) drawn from the base 10 is connected to the wiring board 27 of the electronic component mounting portion 26, and the wiring board 27 and another wiring board 24 are connected to each other. The drive power is supplied to the individual LEDs 23 by utilizing them.

  As shown in FIG. 1, the light emitting module 20 is disposed inside the cover 30 and is entirely covered by the cover 30. More specifically, the wiring board 27 provided in the electronic component mounting part 26 of the light emitting module 20 is a stepped receiving part 32 formed in a ring shape on the blind cover cover 31 side as shown in FIG. It is mounted in an overlapping manner. As can be seen from FIG. 1, the electronic component mounting portion 26 is provided inside the opaque blindfold cover body 31, and the light source portion 21 extends between the blindfold cover body 31 and the translucent cover body 36. In addition, another wiring board 24 is also provided inside the translucent cover body 36. Therefore, the blindfold cover body 31 covers the periphery of the electronic component mounting portion 26, the translucent cover body 36 covers the light source portion 21 and another wiring board 24, and the blindfold cover body 31 is externally connected to the electronic component mounting portion. It helps to make 26 invisible.

  FIG. 4 is a schematic side view showing the translucent cover body 36 in a partially broken view, and FIG. 5 is a bottom view of a portion along the line VV in FIG. As shown in FIG. 4 or FIG. 5, a streak pattern is provided on the inner surface of the light-transmitting cover body 36 covering the periphery of the light source unit 21 of the light emitting module 20 and another wiring substrate 24. This streak pattern is formed by a large number of streak-shaped convex ridges 42 and ridges 41 formed over the entire inner surface of the translucent cover body 36. In the illustrated example, streaks are formed on the inner surface of the translucent cover body 36, extend in the normal direction along the axis of the inner surface, and are arranged at regular intervals in the circumferential direction of the translucent cover body 36. It consists of a vertical streak pattern formed by a large number of the sharpened ridges 42 and the recessed ridges 41 formed between the adjacent sharpened ridges 42, 42.

  Thus, if the inner surface of the translucent cover body 36 is provided with a vertical stripe pattern over the entire surface, the external light hitting the translucent cover body 36 is irregularly reflected due to the optical characteristics of the vertical stripe pattern. The light emitted from the LED 23 of the light emitting module 20 is transmitted to the outside while being diffused and diffused to the translucent cover body 36. Therefore, even when the light emitting module 20 is turned off, the translucent cover body 36 shines and the design of the appearance of the light bulb shaped LED lamp is enhanced. Further, when the LED 23 of the light emitting module 20 is lit, the light emitted from the LED 23 diffuses. As a result, even if the LED 23 exhibits high directivity due to its characteristics, the light emitted from the LED 23 diffuses around the translucent cover body 36 and the translucent cover body 36 shines uniformly. Therefore, the lighting effect also reaches the entire periphery of the light bulb shaped LED lamp. In addition, the protrusions 42 forming the vertical stripe pattern increase the area of the inner surface of the translucent cover body 36 to improve its heat dissipation performance, which improves the durability of the LED 23. It helps to make it.

  The pattern provided on the translucent cover body 36 is not limited to the vertical stripe pattern described with reference to FIGS. 4 and 5. For example, as shown in FIG. 6, it can be applied to the outer surface of the translucent cover body 36. The vertical streaks shown in FIG. 6 are formed on the outer surface of the translucent cover body 36, extend in the normal direction along the axis of the outer surface, and are spaced apart in the circumferential direction of the translucent cover body 36. It is formed by a large number of pointed ridges 43 arranged in parallel and a ridge 44 formed between adjacent ridges 43, 43. Also by this, the same optical characteristic as the case of the vertical stripe pattern demonstrated with reference to FIG.4 and FIG.5 is exhibited.

  Furthermore, the stripe pattern provided on the translucent cover body 36 may be another stripe pattern. For example, as shown in FIG. 7, it is formed on the inner surface of the translucent cover body 36, extends in the normal direction along the axis of the inner surface, and is arranged at a certain interval in the circumferential direction of the translucent cover body 36. Further, it may be formed by a large number of pointed ridges 45 and valley-shaped ridges 46 formed adjacent to each other without opening a gap between adjacent ridges 45, 45. Further, as shown in FIG. 8, it is formed on the outer surface of the light-transmitting cover body 36, extends in the normal direction along the axis of the outer surface, and is spaced at a certain interval in the circumferential direction of the light-transmitting cover body 36. It is formed by a large number of pointed ridges 47 arranged side by side and valley-shaped ridges 48 formed adjacent to each other without opening a gap between the adjacent pointed ridges 47, 47. Also good.

  Further, the streaks are formed on at least one side of the inner surface or outer surface of the translucent cover body 36, extend in the circumferential direction of the surface, and are arranged in the axial direction of the translucent cover body 36. It may be a horizontal stripe pattern formed by ridges or ridges. In addition, it may be a die cut streak pattern formed on at least one of the inner surface and the outer surface of the translucent cover body.

  The vertical streaks described with reference to FIGS. 7 and 8, the horizontal streaks described above, and the diacut streaks all exhibit optical characteristics that diffuse and diffuse light. Therefore, the same action as that of the vertical stripe pattern described with reference to FIGS. 4 and 5 can be obtained by these stripe patterns. Note that the diacut streaks are streaks in which multi-faceted aggregates having a plurality of flat surfaces with different orientations are scattered at a large number of locations or closely arranged without gaps. .

  Incidentally, the pointed ridges 42 and the ridges 41 shown in FIG. 4 or FIG. 5 form a vertical stripe pattern extending in the normal direction along the axis from the top of the shell-shaped translucent cover body 36. . Therefore, if this is utilized, when using a resin molding for the translucent cover body 36, it is possible to simultaneously mold the resin molding and the vertical stripe pattern. In other words, when the translucent cover body 36 is injection-molded with a resin, it is molded using a molding die having the simplest and simplest configuration including an outer die and an inner die that is a counterpart die. In addition, there is an advantage that the concave stripe 41 and the convex stripe 42 forming the concave and convex surface of the inner surface of the light transmitting cover body 36 can be simultaneously molded at the time of molding. . This advantage is similarly obtained when the transparent cover body 36 shown in FIG. 6 is molded from resin, or when the transparent cover body 36 shown in FIGS. 7 and 8 is molded from resin. Further, this advantage can be obtained not only when the translucent cover body 36 has a bullet shape but also when the translucent cover body 36 has a dome shape. Here, the dome shape includes a bowl shape formed by a part of a hollow sphere. In addition, the bullet shape refers to a shape in which a cylindrical body is continuously provided on the top of a dome shape.

  In the light bulb shaped LED lamp according to the above-described embodiment, the light source unit 21 of the light emitting module 20 includes a plurality of LEDs 23 arranged vertically in the longitudinal direction of the elongated substrate 22. And about the number of LED23 arranged in the longitudinal direction of the elongate board | substrate 22, it is also possible to make the number more than two. Therefore, when the number of LEDs 23 arranged in the vertical direction is increased, there is an advantage that the elongated translucent cover body 36 can be illuminated uniformly and uniformly, coupled with the irregular reflection effect of light by the above-described stripe pattern.

In the embodiment described above, both the blindfold cover body 31 and the translucent cover body 36 forming the cover 30 can be resin molded bodies. However, these blindfold cover body 31 and the translucent cover body 36 are used. May be made of glass. Moreover, although the case where the translucent cover body 36 was made into the bullet shape was described, the translucent cover body 36 may be a dome shape or a cylindrical shape with a closed top. Furthermore, the translucent cover body 36 may be transparent or translucent.
Further, in the above-described embodiment, the streaks formed by the multiple ridges 42 or the ridges 41 are formed over almost the entire surface of at least one of the inner surface and the outer surface of the translucent cover body 36. However, a streak pattern is formed on a part of at least one of the inner surface and the outer surface of the translucent cover body 36, for example, on a part of the translucent cover body 36 facing the LED 23 as shown in FIG. May be.

10 base 20 light emitting module 21 light source 22 elongated board 23 LED
26 Electronic component mounting portion 28 Electronic component 30 Cover 31 Blindfold cover body 36 Translucent cover body 41, 44, 48 Concave strip 42 43, 45 Convex strip

Claims (8)

A bulb-type LED lamp comprising: a base connected to a power source; a light emitting module electrically connected to the base; and a cover attached to the base and covering the light emitting module;
The light emitting module is divided into a light source unit having an LED and an electronic component mounting unit on which an electronic component necessary for causing the LED of the light source unit to emit light is mounted.
An opaque blindfold cover body that covers the periphery of the electronic component mounting portion of the light emitting module, and a transparent or translucent transparent cover body that is coupled to the blindfold cover body and covers the light source portion of the light emitting module. Divided,
A light bulb type characterized in that at least one surface of the inner surface or outer surface of the translucent cover body is provided with a stripe pattern formed by a large number of convex portions or concave portions having optical characteristics for irregularly reflecting light. LED lamp.   The light bulb-type LED lamp according to claim 1, wherein the stripe pattern is formed over substantially the entire surface of at least one of the inner surface and the outer surface of the translucent cover body.   The light bulb-type LED lamp according to claim 1, wherein the stripe pattern is formed on a part of the light-transmitting cover body facing the LED on at least one side of the inner surface or the outer surface of the light-transmitting cover body.   The said streaks are vertical streaks formed by a number of ridges or ridges extending in the axial direction of the translucent cover body and arranged in the circumferential direction of the translucent cover body. The light bulb-type LED lamp according to claim 3.   The ridges are formed on at least one side of the inner surface or outer surface of the light transmitting cover body, extend in the circumferential direction of the surface, and are arranged in the axial direction of the light transmitting cover body. The bulb-type LED lamp according to any one of claims 1 to 3, wherein the bulb-shaped LED lamp has a horizontal streak pattern formed by a concave stripe.   The light bulb-type LED lamp according to any one of claims 1 to 3, wherein the stripe pattern is a die-cut stripe pattern.   5. The translucent cover body according to claim 4, wherein the translucent cover body is a resin molded body having a shell shape or a dome shape that can be injection-molded using a molding die including an outer die and an inner die that is a counterpart die. Light bulb type LED lamp.   The light emitting module has a long and narrow board in the axial direction of the cover in which the light source section has LEDs mounted in a plurality of positions in the longitudinal direction, and the electronic component mounting section is fixed to one longitudinal end of the elongated board. The light bulb-type LED lamp according to any one of claims 1 to 6.

Images