JP3223377U - LED lamp - Google Patents

Abstract

Focusing on the high directivity and low heat generation property of an LED chip as a light source of an LED lamp, an LED lamp having a new application is provided by using the characteristics. A module substrate on which an LED chip is mounted is fixed to one end of a radiator, and a transparent or translucent globe is attached to the radiator so as to cover the module substrate. An LED lamp 40 having a base 15 attached to the side, a lighting circuit 16 for supplying power to the LED chip 12 built in the radiator 11, and the lighting circuit 16 and the base 15 electrically connected to each other. A pin-shaped diffused reflector that diffusely reflects the light emitted from the chip 12, a thin piece of silk, a thin piece of cotton, a thin piece of paper, a thin piece of feather, and a thin piece of wool are loaded so that the shape changes according to changes in temperature and humidity in the globe 14 To do. [Selection] Figure 5

Description

  The present invention relates to an LED lamp incorporating an LED chip as a light source.

Recently, there is an increasing demand for LED lamps that use LEDs with low power consumption as light sources instead of incandescent bulbs with high power consumption.
In general, this type of LED lamp is a transparent or translucent globe that covers a module substrate by fixing the module substrate on which the LED chip is mounted to one end of a metal radiator such as aluminum having excellent thermal conductivity and heat dissipation. Is attached to the radiator, and a base is attached to the other end of the radiator,
A lighting circuit for supplying electric power to the LED chip is built in the radiator, and the lighting circuit and the base are electrically connected.

JP 2011-70972 A JP 2011-82132 A JP 2011-90828 A JP 2011-91033 A

By the way, the light emitted from the filament, which is the light source of the incandescent bulb, diffuses to the surroundings and illuminates the surroundings evenly. However, the light emitted from the LED chip used as the light source of the LED lamp has high directivity and has a narrow area in front. It has the property of irradiating with strong light.
Also, the filament of the incandescent bulb may reach a high temperature of 2000 degrees when it is lit, and the surface of the globe covering the filament is heated to a high temperature, which may cause burns when touched.
On the other hand, the LED chip, which is the light source of the LED lamp, has an extremely low calorific value at the time of lighting as compared with the filament, and can suppress the internal temperature of the globe at the time of lighting to several tens of degrees.

The present invention pays attention to the high directivity and low heat generation property of the LED chip that is the light source of the LED lamp, and an object of the present invention is to provide an LED lamp having a new application by using the characteristics.

According to the first aspect of the present invention, the module substrate on which the LED chip is mounted is fixed to one end of the radiator, and a transparent or translucent globe is attached to the radiator so as to cover the module substrate. An LED lamp with a base attached, a lighting circuit for supplying power to the LED chip built in the radiator, and the lighting circuit and the base electrically connected,
It is characterized in that a pin-shaped irregularly reflecting object that diffusely reflects light emitted from an LED chip is loaded into the globe so that its shape changes irregularly by expanding or contracting or expanding and compressing due to a change in temperature or humidity in the globe. To do.

The invention according to claim 2 fixes the module substrate on which the LED chip is mounted to one end of the radiator, attaches a transparent or semi-transparent globe to the radiator so as to cover the module substrate, An LED lamp with a base attached, a lighting circuit for supplying power to the LED chip built in the radiator, and the lighting circuit and the base electrically connected,
As a diffuse reflector that diffusely reflects the light emitted from the LED chip in the globe, the thin flake of silk is loaded so that its shape changes irregularly by expanding / contracting or expanding / compressing by changing the temperature or humidity in the globe. And

The invention according to claim 3 fixes the module substrate on which the LED chip is mounted to one end of the radiator, attaches a transparent or translucent globe to the radiator so as to cover the module substrate, An LED lamp with a base attached, a lighting circuit for supplying power to the LED chip built in the radiator, and the lighting circuit and the base electrically connected,
It is characterized in that the flakes of cotton as a diffuse reflector that diffusely reflects the light emitted from the LED chip in the globe are loaded so that its shape changes irregularly by expanding or contracting or expanding and compressing by changing the temperature or humidity in the globe. And

The device according to claim 4 fixes the module substrate on which the LED chip is mounted to one end of the heat radiating body, attaches a transparent or translucent globe to the heat radiating body so as to cover the module substrate, An LED lamp with a base attached, a lighting circuit for supplying power to the LED chip built in the radiator, and the lighting circuit and the base electrically connected,
As a diffuse reflector that diffusely reflects the light emitted from the LED chip in the globe, it was loaded so that the shape of the paper was irregularly changed by expanding or contracting or expanding and compressing it by changing the temperature or humidity in the globe. And

The invention according to claim 5 fixes the module substrate on which the LED chip is mounted to one end of the radiator, attaches a transparent or translucent globe to the radiator so as to cover the module substrate, An LED lamp with a base attached, a lighting circuit for supplying power to the LED chip built in the radiator, and the lighting circuit and the base electrically connected,
Feather flakes are irregularly reflecting the light emitted from the LED chip in the globe, and the flakes are loaded so that the shape of the flakes changes irregularly by expanding / contracting or expanding / compressing by changing the temperature or humidity in the globe. And

The invention according to claim 6 fixes the module substrate on which the LED chip is mounted to one end of the heat radiating body, attaches a transparent or translucent globe to the heat radiating body so as to cover the module substrate, An LED lamp with a base attached, a lighting circuit for supplying power to the LED chip built in the radiator, and the lighting circuit and the base electrically connected,
It is characterized by loading wool flakes as irregular reflections that diffusely reflect the light emitted by LED chips in the globe so that the shape of the flakes changes irregularly by expanding / contracting or expanding / compressing by changing the temperature or humidity in the globe. And

Since the shape of the bobbin-like diffused reflector loaded in the globe expands and contracts irregularly due to changes in temperature or humidity in the globe, an unpredictable lighting effect occurs every time the LED lamp is turned on, and the LED The use of the lamp as an illumination means can be expanded.

The shape of flaky diffused reflectors such as silk, cotton, Japanese paper, feathers and wool loaded in the glove is LE.
The illumination effect of the LED lamp is generated each time the LED lamp is turned on, because it expands and contracts due to a change in temperature or humidity in the globe accompanying the turning on or off of the D lamp, and changes irregularly. As an application, it can be expanded.

It is sectional drawing which shows the LED lamp which concerns on the 1st reference example of this invention. It is an external view which shows the state which the LED lamp which concerns on the 1st reference example of this invention inclines. It is sectional drawing which shows the LED lamp which concerns on the 2nd reference example of this invention. It is sectional drawing which shows the LED lamp which concerns on the 3rd reference example of this invention. 1 is a perspective view showing an LED lamp according to a first embodiment of the present invention. It is a perspective view which shows the LED lamp which concerns on the 4th reference example of this invention.

Reference example 1

The present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show an LED lamp 10 according to a first reference example of the present invention. The LED lamp 10 is made of an aluminum radiator 11.
A module substrate 13 on which the LED chip 12 is mounted, a translucent glass or resin dome-shaped globe 14, a base 15, and a lighting circuit 16 for supplying power to the LED chip 12.

The radiator 11 has an inverted frustoconical appearance, and a large number of fins 11a are formed on the outer peripheral portion in order to increase the surface area and enhance the heat dissipation effect. On the upper end surface of the radiator 11, the module substrate 1
3 is fixed. Further, a lighting circuit 16 is built in the radiator 11, and the module substrate 13 and the lighting circuit 16 are connected by a lead wire 17. A base 15 is attached to the lower end of the radiator 11. The lighting circuit 16 and the base 15 are electrically connected by lead wires.

A ring groove 11 b is formed on the upper end surface of the radiator 11. The lower end opening end of the globe 14 is fitted in the ring groove 11b. The globe 14 is detachably attached to the radiator 11 so as to cover the module substrate 13. And inside the globe 14 is L
As an irregular reflector that diffusely reflects light emitted from the ED chip 12, a large number of acrylic resin balls 1 are used.
8 is loaded, and the ball 18 occupies approximately half of the inner volume of the globe 14. The material of the ball 18 is selected so as not to melt or ignite even at the maximum temperature inside the globe 14 when the LED lamp 10 is turned on.

The structure of the LED lamp 10 according to the first reference example is as described above, and as shown in FIG.
When the LED lamp 10 is installed vertically, the acrylic resin balls 18 in the globe 14 are laminated on the radiator 11 and occupy the volume of the lower half of the globe 14. LED chip 12
The light hits the surface of the stacked balls 18 and is irregularly reflected.
As shown in FIG. 2, when the LED lamp 10 is tilted with the globe 14 facing downward, the ball 18 is laminated on the inner lower half of the top of the globe 14, and the light from the LED chip 12 strikes the laminated ball 18 and is diffusely reflected. The
In the LED lamp 10 according to the first reference example, the position of the acrylic resin ball 18 loaded in the globe 14 varies irregularly depending on the inclination of the globe 18 and the form of the laminated body of the balls 18 changes. The lighting effect that cannot be predicted for each installation method can be obtained, and the use of the LED lamp 10 as an illumination means can be expanded.

Reference example 2

An LED lamp 20 according to a second reference example of the present invention is shown in FIG. A nylon ribbon 21 is lightly rolled or compressed and loaded inside the globe 14 of the LED lamp 20. The material of the ribbon 21 is selected so as not to melt or ignite at the maximum temperature in the globe 14.
According to the LED lamp 20 according to the second reference example, the resin ribbon 2 loaded in the globe 14 is used.
1 is expanded or contracted due to a change in temperature or humidity in the globe 14 caused by turning on or off of the LED lamp 20, or is irregularly expanded and compressed, so that it cannot be predicted every time the LED lamp 20 is turned on. Occurs.

Reference example 3

An LED lamp 30 according to a third reference example of the present invention is shown in FIG. Inside the globe 14 of the LED lamp 30, a nylon cloth piece 31 is lightly rolled or compressed.
According to the LED lamp 30 according to the third reference example, the form of the nylon cloth piece 31 loaded in the globe 14 is inflated and compressed due to a change in the temperature or humidity in the globe 14 when the LED lamp 30 is turned on or off. Since it changes regularly, an unpredictable lighting effect occurs every time the LED lamp 30 is turned on.

FIG. 5 shows an LED lamp 40 according to a first embodiment of the present invention. Inside the globe 14 of the LED lamp 40, a nylon thread 41 is loaded in an irregularly lightly wound state.
According to the LED lamp 40 according to the first embodiment, the form of the bobbin 41 loaded in the globe 14 is irregularly changed due to expansion / contraction or expansion / compression due to a change in temperature or humidity in the globe 14. Whenever is turned on, an unpredictable lighting effect occurs.

An LED lamp 50 according to a fourth reference example of the present invention is shown in FIG. Inside the globe 14 of the LED lamp 50, styrene foam fragments 51 are loaded.
According to the LED lamp 50 according to the fourth reference example, the position of the polystyrene foam fragments 51 loaded in the globe 14 varies irregularly depending on the inclination of the globe 14. Further, since the polystyrene foam fragments 51 are light, they float in the globe 14 as the temperature in the globe 14 changes due to the turning on and off of the LED lamp 50. Therefore, it is possible to obtain an illumination effect that cannot be predicted for each way of installing the LED lamp 50 or for each lighting.

The LED lamps 20 and 3 according to the second reference example, the third reference example, the first embodiment, and the fourth reference example.
Of the configurations of 0, 40, and 50, the same components as those of the LED lamp 10 according to the first reference example are denoted by the same reference numerals, and description thereof is omitted.

In the LED lamp 10 according to the first reference example, the acrylic ball 18 is loaded on the globe 14, but a glass ball can also be loaded. In the LED lamp 30 according to the third reference example, the glove 14 is loaded with the nylon cloth 31, but the cloth is loaded with silk, cotton, Japanese paper, feathers or wool, or a mixture thereof. You can also.

In the above reference example and embodiment, since the globe 14 is detachably attached by fitting it into the ring groove 11b, the user can select a diffuse reflector and load it into the globe 14. Further, as a method of attaching and detaching the globe 14, if the screws are formed on the globe 14 and the heat dissipating body 11, the globe 14 can be attached and detached more easily. Furthermore, if necessary, the heat sink 11 is attached to the globe 14 with an adhesive.
It is also possible to adhere to.

10, 20, 30, 40, 50 ... LED lamp 11 ... radiator 12 ... LED chip 13 ... module substrate 14 ... globe 15 ... base 16 ... lighting circuit 18 ... acrylic resin ball 21 ... nylon ribbon 31 ... nylon cloth Piece 41 ... Nylon yarn 51 ... Styrofoam fragment

Claims (1)

The module substrate on which the LED chip is mounted is fixed to one end of the radiator, a transparent or translucent globe is attached to the radiator to cover the module substrate, a base is attached to the other end of the radiator, and power is supplied to the LED chip. It is an LED lamp in which a lighting circuit to be supplied is built in a radiator and the lighting circuit and a base are electrically connected,
It is characterized in that a pin-shaped irregularly reflecting object that diffusely reflects light emitted from an LED chip is loaded into the globe so that its shape changes irregularly by expanding or contracting or expanding and compressing due to a change in temperature or humidity in the globe. LED lamp to do.