CN201724009U

CN201724009U - Large-angle LED light source and large-angle high-radiating LED illuminator

Info

Publication number: CN201724009U
Application number: CN2010201652264U
Authority: CN
Inventors: 王健芳
Original assignee: Individual
Current assignee: Chen Xiran; Duan Zhiyong
Priority date: 2009-12-16
Filing date: 2010-04-21
Publication date: 2011-01-26
Anticipated expiration: 2020-04-21

Abstract

The utility model provides a large-angle LED light source, which is characterized by comprising a conductive frame, a plurality of LED light emitting chips and weld lines. The LED light emitting chips are connected with a conductive frame by the weld lines, the conductive frame comprises a positive pole supporting body and a negative pole supporting seat, the positive pole supporting body is insulated with the negative pole supporting seat, the positive pole supporting body comprises a straight prismatic head, the LED light emitting chips are fixed on an upper surface of the straight prismatic head; the negative pole supporting seat comprises a straight prismatic installation column, and the LED light emitting chips are fixed on side faces of the straight prismatic installation column. The utility model also provides a large-angle high-radiating LED illuminator which is characterized in that the illuminator comprises the LED light source. The utility model has the effects that the large-angle LED light source and the large-angle high-radiating LED illuminator is simple in structure and easy for production. The large-angle LED light source and large-angle excellent-radiating LED illuminator is characterized by large illumination angle, excellent radiating performance and energy saving.

Description

Large-angle LED light source and large-angle high-heat-dissipation LED illuminating lamp

Technical Field

The utility model relates to a LED illumination field especially relates to a wide-angle LED light source and the high heat dissipation LED light of a wide-angle.

Background

With the recent renewed concern about global energy shortage, energy conservation is an important issue facing us in the future. The LED is called as a fourth generation illumination light source or a green light source, has the characteristics of energy conservation, environmental protection, long service life, small volume and the like, and can be widely applied to the fields of various indications, display, decoration, backlight sources, common illumination, urban night scenes and the like. In the field of illumination, the application of LED light emitting products is attracting the eyes of people, and as a novel green light source product, LED is inevitably a trend of future development, and the twenty-first century will enter a new illumination light source era represented by LED. The LED lighting lamp is a lighting lamp using a Light Emitting Diode (LED) as a Light Emitting body. The LED light-emitting chip is a core component of an LED illuminating lamp, namely a P-N junction. The main functions are as follows: the electric energy is directly converted into the light energy, and the main material of the LED light-emitting chip is monocrystalline silicon. The LED light emitting chips are mainly classified into three types according to the light emitting color: red, green, and blue (raw materials for making white light). The blue light tube core LED light-emitting chip is matched with fluorescent powder to generate a white light effect.

The LED light-emitting chip emits light through electronic compounding, and when the LED light-emitting chip generates little heat under the condition of low current, the LED light-emitting chip needs larger current and can generate a large amount of heat to increase the working temperature in high-power LED illuminating lamps, particularly the application in the illumination field. The main factor influencing the LED light emitting chip is the temperature (operating temperature of P-N junction), the operating temperature of P-N junction is usually not higher than 120 degrees, preferably about 100 degrees, the luminous flux will be attenuated by 1% when the temperature of P-N junction rises by 10 degrees, the dominant wavelength of light will drift by 1nm, and the lifetime will also decrease. Therefore, heat dissipation is a problem that must be considered for LED lighting lamps. In addition, the LED light emitting chip has a very small volume, is point-emitting, and has high directivity (the light emitted by the LED light emitting chip is linear and has poor divergence), which directly results in a relatively small irradiation angle, and the light is rapidly weakened after deviating from the angle, thus failing to meet the requirement of large-area illumination. In order to solve the problem of small irradiation angle, the prior art adopts a lamp tube type LED for illumination, and the lamp is arranged densely, the design cost is too high, the heat dissipation effect is not good enough, and the energy-saving effect is lost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wide-angle LED light source and the high heat dissipation LED light of wide-angle, it has the characteristics that the angle of illumination is big, heat dispersion is good and simple structure.

For realizing the utility model discloses the wide-angle LED light source that the purpose provided, its characterized in that: the LED light-emitting device comprises a conductive support, a plurality of LED light-emitting chips and bonding wires, wherein the LED light-emitting chips are connected with the conductive support through the bonding wires; the conductive support comprises a positive electrode support body and a negative electrode support seat, and the positive electrode support body and the negative electrode support seat are insulated; the anode support body comprises a straight prism-shaped head part, and the LED light-emitting chip is fixed on the upper surface of the straight prism-shaped head part; the negative electrode supporting seat comprises a straight prism-shaped mounting column, and the LED light-emitting chip is fixed on each side surface of the straight prism-shaped mounting column.

For realizing the utility model discloses the purpose provides a high heat dissipation LED light of wide-angle, including the wick, its characterized in that: the lamp wick comprises a large-angle LED light source; the large-angle LED light source comprises a conductive support, a plurality of LED light-emitting chips and bonding wires, wherein the LED light-emitting chips are connected with the conductive support through the bonding wires; the conductive support comprises a positive electrode support body and a negative electrode support seat, and the positive electrode support body and the negative electrode support seat are insulated; the anode support body comprises a straight prism-shaped head part, and the LED light-emitting chip is fixed on the upper surface of the straight prism-shaped head part; the negative electrode supporting seat comprises a straight prism-shaped mounting column, and the LED light-emitting chip is fixed on each side surface of the straight prism-shaped mounting column.

The utility model has the advantages that: the utility model discloses a high heat dissipation LED light of wide-angle LED light source and wide-angle has:

1. the structure is simple, and the production and the manufacture are easy;

2. large irradiation angle, good heat dispersion and energy saving.

Drawings

FIG. 1 is a schematic diagram of a large angle LED light source;

fig. 2 is a schematic view of a metal support of a large-angle LED light source according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a metal support of a large-angle LED light source according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating an installation of the LED light emitting chip of the large-angle LED light source according to the embodiment of the present invention;

fig. 5 is a top view of the LED light emitting chip of the large-angle LED light source according to the embodiment of the present invention;

FIG. 6 is a cross-sectional view of a high angle LED illumination lamp;

FIGS. 7-10 are schematic views of the assembly of the lamp wick of the large-angle LED illuminating lamp;

fig. 11-15 are schematic assembly views of a high angle LED lighting lamp.

Wherein,

1, metal support:

11 positive electrode support: 111 support cylinder, 112 right prism head;

12 negative pole supporting seat: 121 straight prism shaped mounting post: 1221 a lens mounting groove;

122 positioning cylinder, 123 threaded cylinder, 124 cylindrical hollow channel;

2, a lens;

3LED light emitting chips;

4, welding wires;

5, a wick: 51 large angle LED light source, 52 metal tube;

53 lamp stem: 531 tail of lamp wick: 5311 a lamp wick groove;

6 lighting lamp shell, 7 transparent liquid for heat conduction, 8 driving power supply accommodating body and 9 lamp holder.

Detailed Description

In order to make the purpose, technical scheme and advantage of the utility model more clearly understand, it is right below to combine the figure and embodiment, to the utility model discloses a high heat dissipation LED light of wide-angle LED light source and wide-angle carries out further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example one

As shown in fig. 1, as an implementable manner, the large-angle LED light source according to the embodiment of the present invention includes a metal support 1, a lens 2, an LED light emitting chip 3, and a bonding wire 4.

As shown in fig. 2 and fig. 3, the metal bracket 1 includes a positive support 11 and a negative support 12, and an insulating and heat-conducting plastic is filled between the positive support 11 and the negative support 12, that is, the positive support 11 and the negative support 12 are respectively electrically conductive, and the positive support 11 and the negative support 12 are respectively electrically insulated and heat-conducting. The positive support 11 is connected with the positive pole of the circuit, and the negative support 12 is connected with the negative pole of the circuit.

Wherein, the positive electrode support 1 includes a support cylinder 111 and a right prism shaped head 112 provided at one end of the support cylinder, wherein the bottom surface of the right prism of the head 12 is a right octagon. The radius of the straight prismatic head 112 is larger than that of the support cylinder 111, and the length of the support cylinder 111 is larger than that of the negative electrode support base 12.

The negative electrode support base 12 is provided with, in order from top to bottom, a straight prism-shaped mounting post 121, a positioning cylinder 122 (the function of which will be described later), and a threaded post 123 (the function of which will be described later). Wherein, the bottom surface of the straight prism of the mounting column 121 is a regular octagon; the radius of threaded post 123 is the smallest, the radius of straight prismatic mounting post 121 is centered, and the radius of positioning post 122 is the largest. The cathode support base 12 is provided with a cylindrical hollow passage 124, the hollow passage 124 longitudinally penetrates the center of the cathode support base 12, and the radius of the hollow passage 124 is slightly larger than that of the support cylinder 111 and smaller than that of the right prism-shaped head 112. Wherein, an annular lens mounting groove 1221 is provided on the upper surface of the positioning cylinder 122, and the lens 2 is fixed in the lens mounting groove 1221.

The support cylinder 111 of the positive electrode support 11 passes through the hollow passage 124 and is caught above the mounting column 121 of the right prism shape by the head 112 of the right prism shape, and the support cylinder 111 protrudes from the lower end of the negative electrode support base 12.

As shown in fig. 4 and 5, the LED light emitting chip 3 is fixed on the upper surface of the straight prismatic head 112 and each side surface of the straight prismatic mounting post 121. The positive (negative) pole of the LED light emitting chip 3 is connected to the positive support 11 (negative support base 12) through the bonding wires 4. When the LED light emitting chip 3 is fixed and a large-angle LED light source is used, the positioning cylinder 122 provides an area where a torsion force can be applied, which facilitates clamping and installation.

The large-angle LED light source of the embodiment encapsulates the LED light source which emits light in a spherical shape with an irradiation angle larger than 270 degrees, has a light emitting effect similar to that of a traditional incandescent bulb, and can replace the traditional incandescent lamp; but saves ninety percent of the energy of a conventional incandescent lamp. The existing LED light source comprising the light emitting chip positioned on the polygonal surface forms butterfly-shaped light spots because only the light emitting chip on the side surface is used. The large-angle LED light source of the present embodiment has the LED light emitting chip 3 on the upper surface of the straight prismatic head 112 and the LED light emitting chip of the polygonal face so that it emits light spherically.

As a preferred embodiment, a sealant is added in the lens mounting groove 1221, and the lens is mounted by mechanical pressing, so as to achieve high sealing performance of the large-angle LED light source. The mechanical pressing is applied to sealing in the field of LEDs, so that the sealing effect is greatly improved.

In a preferred embodiment, the LED light emitting chip 3 is a blue chip, and a phosphor for exciting white light is added to the lens 2, wherein the phosphor accounts for no more than 10%. When the blue light passes through the lens, white light is excited. The fluorescent powder is added into the lens 2 to excite the white light, so that the step of dispensing fluorescent glue on the surface of the blue LED light-emitting chip is reduced, the production efficiency is greatly improved, the defective rate is reduced, the color coordinate error of a batch is extremely small, and the defect that the blue light of the blue LED light-emitting chip cannot be effectively excited into the white light due to the light attenuation of the fluorescent powder is overcome.

As a preferred embodiment, the positive electrode support 11 and the negative electrode support base 12 are assembled by tape injection molding. The strip injection molding is a plastic injection molding process, which refers to injection molding of plastic between more than two parts and is an injection molding processing means for forming a plurality of parts into a whole.

In a preferred embodiment, the positive support 11 and the negative support 12 are made of copper, and the surface of the copper is plated with pure silver or pure gold to increase the conductivity.

As an example, the right prism of the right prism-shaped head 112 may have any one of 3 to 10 sides.

Example two

As shown in fig. 6, as an implementable manner, the large-angle high-heat-dissipation LED lighting lamp according to the embodiment of the present invention includes a wick 5, a lighting lamp housing 6, a transparent liquid 7 for heat conduction, a driving power supply accommodating body 8 and a lamp cap 9, wherein the transparent liquid 7 for heat conduction is located in the lighting lamp housing 6; one end of the wick 5 is immersed in the heat-conducting transparent liquid 7, and the other end is connected to the base 9 through the driving power supply holder 8.

The lamp wick 5 comprises the large-angle LED light source (in the embodiment, the reference numeral 51), a metal tube 52 and a lamp core column 53; the inner wall of one end of the lampwick 53 is provided with threads, and the outer lampwick tail 531 of the other end is provided with a lampwick groove 5311. The metal tube 52 is sleeved with the support cylinder 111, the lamp stem 53 is tightly connected with the threaded post 123 coated with the heat-conducting sealant through threads, the heat-conducting sealant is filled between the metal tube 52 and the lamp stem 53, namely, the metal tube 52 is connected with the positive pole of the circuit, and the lamp stem 53 is connected with the negative pole of the circuit. The wick tail 531 is press-sealed to the opening of the illumination lamp envelope 6, so that the heat-conducting transparent liquid 7 is sealed in the illumination lamp envelope 6.

The positive and negative electrodes of the lamp wick 5 are connected with the positive and negative electrodes of the driving power supply, and the positive and negative electrodes of the driving power supply are connected with the positive and negative electrodes of the lamp holder 9.

The manufacturing method of the large-angle high-heat-dissipation LED illuminating lamp comprises the following steps:

the first step is as follows: as shown in fig. 7, the metal pipe 52 is sleeved outside the supporting cylinder 111 by compressing and reducing the diameter; that is, the metal pipe 52 and the positive electrode support 11 form a positive electrode;

the second step is that: as shown in fig. 8 and 9, the stem 53 is tightly screwed to the screw post 123 coated with a heat conductive sealant, and the heat conductive sealant is filled between the metal tube 52 and the stem 53; namely, the lamp stem 53 and the negative electrode support seat 12 form a negative electrode, and the positive electrode and the negative electrode are insulated and thermally conductive;

the third step: as shown in fig. 10, the wick groove 5311 is primed with a sealant;

so far, the assembly of the lamp wick 5 is finished;

the fourth step: as shown in fig. 11, a certain amount of transparent liquid 7 with high thermal conductivity is filled from the bottle mouth of the illumination lamp housing 6;

the fifth step: as shown in fig. 12 and 13, the wick 5 is placed in the illumination lamp housing 6, and the wick groove 5311 is pressed and sealed with the mouth of the illumination lamp housing 6 by a sealing machine, so that the heat-conducting transparent liquid 7 is sealed in the illumination lamp housing 6; at this time, the large-angle LED light source 51 is completely immersed in the transparent liquid 7 with high heat conductivity, and the lens is installed in a mechanical pressing mode, so that no transparent liquid 7 enters the large-angle LED light source;

at this point, the assembly of the lamp wick 5 and the lighting lamp housing 6 is completed;

and a sixth step: as shown in fig. 14, the driving power accommodating body 8 is connected with the lighting lamp housing 6 in a bayonet manner, and the positive and negative poles of the wick 5 are connected with the positive and negative poles of the driving power;

the seventh step: as shown in fig. 15, the driving power supply accommodating body 8 is connected to the base 9, and the positive and negative poles of the driving power supply are connected to the positive and negative poles of the base 9.

And finishing the assembly of the large-angle high-heat-dissipation LED illuminating lamp.

The heat generated by the LED light-emitting chip in the large-angle high-heat-dissipation LED illuminating lamp is dissipated through the following ways:

for the LED light emitting chips located on the respective sides of the right prism-shaped mounting post 121, the heat generated therefrom is transferred to the positioning cylinder 122 through the right prism-shaped mounting post 121, and is transferred to the heat-conducting transparent liquid 7 through the positioning cylinder 122, thereby achieving heat dissipation;

for the LED light emitting chip located on the upper surface of the straight prism-shaped head 112, a part of the heat generated therefrom is dissipated through the positive electrode support 11 and the long metal tube 52; a part is transferred to the positioning cylinder 122 through the straight prism-shaped mounting column 121, and is transferred to the heat-conducting transparent liquid 7 through the positioning cylinder 122, thereby achieving heat dissipation.

The wide-angle LED light source and the wide-angle high-heat-dissipation LED illuminating lamp have simple structures and are easy to produce and manufacture; large irradiation angle, good heat dispersion and energy saving.

Finally, it should be noted that it is obvious that various changes and modifications can be made to the present invention by those skilled in the art without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A high angle LED light source, comprising:

the LED light-emitting device comprises a conductive support (1), a plurality of LED light-emitting chips (3) and bonding wires (4), wherein the LED light-emitting chips (3) are connected with the conductive support (1) through the bonding wires (4);

the conductive support (1) comprises a positive electrode support body (11) and a negative electrode support seat (12), and the positive electrode support body (11) and the negative electrode support seat (12) are insulated;

the positive electrode support (11) comprises a straight prism-shaped head (112), and the LED light-emitting chip (3) is fixed on the upper surface of the straight prism-shaped head (112);

the negative electrode support base (12) comprises a straight prism-shaped mounting column (121), and the LED light-emitting chip (3) is fixed on each side surface of the straight prism-shaped mounting column (121).

2. The high angle LED light source of claim 1, wherein:

the cathode supporting seat (12) comprises a positioning column (122), a lens mounting groove (1221) is formed in the upper surface of the positioning column (122), and the lens (2) is fixed in the lens mounting groove (1221) in a mechanical pressing mode.

3. The high angle LED light source of claim 1 or 2, wherein:

the positive electrode support body (11) and the negative electrode support seat (12) are assembled in a strip injection molding mode to be insulated.

4. The high angle LED light source of claim 1 or 2, wherein:

the straight prism of the straight prism-shaped mounting column (121) is any one of 3-10 prisms.

5. The high angle LED light source of claim 1 or 2, wherein:

the positive electrode support body (11) further comprises a support column (111); the negative electrode support seat (12) is provided with a hollow channel (124); the support column (111) penetrates through the hollow channel (124), and is clamped above the straight prism-shaped mounting column (121) through the straight prism-shaped head (112), and the support column (111) extends out of the lower end of the negative electrode support seat (12).

6. The utility model provides a high heat dissipation LED light of wide-angle, includes wick (5), its characterized in that:

the lamp wick (5) comprises a large-angle LED light source; the large-angle LED light source comprises a conductive support (1), a plurality of LED light-emitting chips (3) and bonding wires (4), wherein the LED light-emitting chips (3) are connected with the conductive support (1) through the bonding wires (4);

7. The large-angle high-heat-dissipation LED illuminating lamp according to claim 6, wherein: the large-angle LED light source further comprises a lens (2), the negative electrode supporting seat (12) comprises a positioning column (122), a lens mounting groove (1221) is formed in the upper surface of the positioning column (122), and the lens (2) is fixed in the lens mounting groove (1221) in a mechanical pressing mode.

8. The large-angle high-heat-dissipation LED illuminating lamp according to claim 7, characterized in that:

the lamp also comprises an illumination lamp shell (6), transparent liquid (7) for heat conduction, a driving power supply accommodating body (8) and a lamp cap (9); the transparent liquid (7) for heat conduction is sealed in the illumination lamp shell (6); one end of the lamp wick (5) is immersed in the heat-conducting transparent liquid (7), and the other end of the lamp wick is connected with the lamp cap (9) through the driving power supply accommodating body (8).

9. The large-angle high-heat-dissipation LED illuminating lamp according to claim 7, characterized in that:

the lamp wick (5) also comprises a metal tube (52) and a lamp core column (53); the metal tube (52) and the lamp stem (53) are insulated from each other; the metal tube (52) is connected with the anode support body (11), and the lampwick column (53) is connected with the cathode support seat (12).