CN215001136U

CN215001136U - LED projection lamp

Info

Publication number: CN215001136U
Application number: CN202120333260.6U
Authority: CN
Inventors: 杨军
Original assignee: Beijing Heli Xingyuan Optoelectronic Technology Co ltd
Current assignee: Beijing Heli Xingyuan Optoelectronic Technology Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-03
Anticipated expiration: 2031-02-05

Abstract

The utility model discloses a LED projection lamp, which comprises a heat pipe radiator and a light source component; the light source assembly comprises a copper substrate and an LED lamp bead, and the LED lamp bead and the copper substrate are fixed in an eutectic welding mode; the heat conducting bonding pad of the copper substrate is insulated and isolated from the electrode; the copper substrate of the light source assembly is in thermal contact with the heat pipe of the heat pipe radiator; the LED lamp beads are uniformly arranged on the copper substrate in an annular mode, and the ratio of the distance interval of the central points of two adjacent LED lamp beads to the diameter of the copper substrate is 1: 8-1: 14. The utility model provides an among the prior art LED projecting lamp radiating effect poor, influence the light efficiency and the life's of LED projecting lamp problem.

Description

LED projection lamp

Technical Field

The utility model relates to a LED projecting lamp.

Background

With the development of LED lighting products, the application of LED lighting products is also more and more widespread. The LED projection lamp has the characteristics of safety, reliability, high brightness, energy conservation and long service life, and is more and more widely applied. But LED projecting lamp during operation produces high fever, and the good or bad light efficiency, electric conductive property and the life that can seriously influence LED lamp pearl of radiating effect, the light source subassembly of the LED projecting lamp that adopts among the prior art is relatively poor with the heat conduction effect of heat pipe radiator, and this has brought the challenge for the actual performance of LED projecting lamp, based on this, urgently waits to provide the LED projecting lamp that heat conductivility is good.

SUMMERY OF THE UTILITY MODEL

In view of the technical defects and technical drawbacks existing in the prior art, embodiments of the present invention provide an LED projection lamp that overcomes or at least partially solves the above problems.

As an aspect of the embodiments of the present invention, the present invention relates to an LED projection lamp, which includes a heat pipe radiator and a light source assembly;

the light source assembly comprises a copper substrate and an LED lamp bead, and the LED lamp bead and the copper substrate are fixed in an eutectic welding mode; the heat conducting bonding pad of the copper substrate is insulated and isolated from the electrode;

the copper substrate of the light source assembly is in thermal contact with the heat pipe of the heat pipe radiator;

the LED lamp beads are uniformly arranged on the copper substrate in an annular mode, and the ratio of the distance interval of the central points of two adjacent LED lamp beads to the diameter of the copper substrate is 1: 8-1: 14.

In one or some alternative embodiments, the upper surface of the copper substrate has a plurality of sets of soldering points, each soldering point including a heat conducting contact of a heat conducting pad and positive and negative terminals of electrodes located on both sides of the heat conducting contact;

the LED lamp bead comprises a positive electrode end, a negative electrode end and a heat conducting end;

and the positive terminal, the negative terminal and the heat conduction terminal of the LED lamp bead are respectively and correspondingly fixed with the positive wiring terminal, the negative wiring terminal and the heat conduction contact of the welding point in an eutectic welding way.

In one or some alternative embodiments, the heat pipe heat sink comprises a base, a plurality of heat pipes, and a plurality of fins;

the outer surface of the base is provided with a plurality of grooves, the heat absorption part of the heat pipe is embedded in the grooves of the base, and the outer surface of the heat absorption part of the heat pipe 102 is flush with the outer surface of the base;

the plurality of radiating fins are arranged in parallel at intervals and fixed on the inner surface of the base;

the heat pipe is characterized in that a plurality of heat dissipation holes are formed in the heat dissipation plate, and the heat dissipation part of the heat pipe penetrates through one heat dissipation hole of the heat dissipation plate.

In one or some alternative embodiments, the light source assembly is fixed on the base of the heat pipe radiator, and the lower surface of the copper substrate of the light source assembly is tightly attached to the upper surface of the base of the heat pipe radiator.

In one or some alternative embodiments, a heat-conducting silicone grease is coated between the lower surface of the copper substrate of the light source assembly and the upper surface of the base of the heat pipe radiator.

In one or some optional embodiments, the LED projector further includes: a transparent lampshade; the transparent lampshade covers the LED lamp beads and is fixed on the base of the heat pipe radiator.

In one or some optional embodiments, the LED projector further includes: a light reflecting cup; the reflecting cup is arranged on the outer side of the transparent lampshade and fixed on the base of the heat pipe radiator.

In one or some optional embodiments, the number of the plurality of heat pipes is 2N, where N is an integer, and the plurality of heat pipes are uniformly and symmetrically arranged on the heat pipe radiator.

In one or some optional embodiments, the LED projector further includes: the LED projection lamp mounting structure is characterized in that the mounting frames are arranged on two sides of the heat pipe radiator and used for mounting the LED projection lamp, and the end portions of the mounting frames are fixed on the side wall of the base of the heat pipe radiator.

In one or some alternative embodiments, the ratio of the thickness of the copper substrate of the light source assembly to the diameter of the copper substrate is between 1:40 and 1: 60.

The embodiment of the utility model provides a following technological effect has been realized at least:

1. the utility model provides an insulating isolation between the heat conduction pad of the copper base plate of the light source subassembly of LED projecting lamp and electrode, the copper base plate of light source subassembly is direct and the contact of heat pipe radiator, thereby the heat that produces in the work of LED lamp pearl can be through the heat pipe radiator of the quick heat conduction of copper base plate, the mode of insulating isolation of electrode and heat conduction pad also makes the heat conduction of copper base plate itself faster, the light energy loss that the heat loss arouses has been avoided, therefore, the heat conduction efficiency has been improved, calorific capacity has been reduced, and then power conversion efficiency has been promoted, the reliability of LED lamp pearl has been improved, the life of LED lamp pearl has been prolonged, and the luminous intensity of LED lamp pearl has been improved, can adopt LED lamp pearl less to realize anticipated illuminating effect, material cost and manufacturing cost have been saved.

2. The utility model provides a LED lamp pearl evenly arranges in LED projecting lamp's light source subassembly annular on the copper base plate, and when the distance interval of lamp pearl becomes 1:8 to 1:14 proportional relation with the diameter of copper base plate, both can realize the effective heat dissipation of LED lamp pearl, can reduce the light decay of LED lamp pearl again to not only can guarantee the life of LED projecting lamp but also can guarantee that the LED projecting lamp reaches more illumination effect.

3. The utility model provides a light source subassembly of LED projecting lamp adopt LED lamp pearl with the copper base plate has improved the electric conductive property of light source subassembly itself through the fixed eutectic welding mode, has improved electric energy utilization efficiency, has strengthened the light efficiency and the power supply stability of LED lamp pearl.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a main body of an LED projector provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a copper substrate of a light source assembly of the LED projection lamp of fig. 1;

fig. 3 is a schematic structural diagram of an LED lamp bead of the LED projection lamp of fig. 1.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following respectively describes in detail various specific embodiments of an LED projector according to embodiments of the present invention.

The first embodiment is as follows:

referring to fig. 1 to 2, an embodiment of the present invention provides an LED projection lamp, including a heat pipe radiator 1 and a light source assembly 2;

the light source assembly 2 comprises a copper substrate 201 and an LED lamp bead 202, wherein the LED lamp bead 202 and the copper substrate 201 are fixed in an eutectic welding mode; the heat conducting bonding pad of the copper substrate 201 is insulated and isolated from the electrode;

the copper substrate 201 of the light source assembly 2 is in thermal contact with the heat pipe 102 of the heat pipe radiator 1;

the LED lamp beads 202 are uniformly arranged on the copper substrate 201 in an annular mode, and the ratio of the distance interval of the central points of two adjacent LED lamp beads 202 to the diameter of the copper substrate 201 is 1:8 to 1: 14.

The utility model provides a LED projecting lamp still includes drive power supply (not shown in the figure), and this drive power supply can set up in the one side of keeping away from light source subassembly 2, and it is shown with reference to figure 2, is provided with positive input A + and negative input A-on the copper base plate 201 of light source subassembly 2, and this drive power supply is connected through the wire with positive input A + and negative input A-of light source subassembly 2, provides steady voltage for each LED lamp pearl 202 of light source subassembly 2.

The utility model provides an insulating isolation between copper substrate 201's of light source subassembly 2 of LED projecting lamp heat pipe radiator 1 contact between heat conduction pad and the electrode of light source subassembly 2, copper substrate 201 of light source subassembly 2 is direct, thereby the heat that LED lamp pearl 202 produced in the work can be through copper substrate 201 heat conduction to heat pipe radiator 1 fast, the mode of electrode and heat conduction pad insulating isolation also makes copper substrate 201 heat conduction itself faster, the light energy loss that the heat loss arouses has been avoided, therefore, the heat conduction efficiency is improved, calorific capacity is reduced, and then power conversion efficiency has been promoted, LED lamp pearl 202's reliability has been improved, the life of LED lamp pearl 202 has been prolonged, and LED lamp pearl 202's luminous intensity has been improved, can adopt LED lamp pearl 202 still less to realize anticipated illuminating effect, material cost and manufacturing cost have been saved.

The utility model provides a LED lamp pearl 202 evenly arranges in annular on copper base plate 201 among light source subassembly 2 of LED projecting lamp, and when the distance interval of lamp pearl becomes 1:8 to 1:14 proportional relation with the diameter of copper base plate 201, both can realize the effective heat dissipation of LED lamp pearl 202, can reduce the light decay of LED lamp pearl 202 again to not only can guarantee the life of LED projecting lamp but also can guarantee that the LED projecting lamp reaches more illumination effect.

The utility model provides a light source subassembly 2 of LED projecting lamp adopt LED lamp pearl 202 with copper base plate 201 has improved the electric conductive property of light source subassembly 2 itself through the fixed eutectic welding mode, has improved electric energy utilization efficiency, has strengthened LED lamp pearl 202's light efficiency and power supply stability.

In one or some optional embodiments, the embodiment of the present invention provides a distance interval between central points of two adjacent LED lamp beads 202 of the light source assembly 2 of the LED projection lamp is 1.5 to 2.5 centimeters.

In one or some optional embodiments, the ratio of the thickness of the copper substrate 201 to the diameter of the copper substrate 201 of the light source assembly 2 of the LED projection lamp provided by the embodiments of the present invention is between 1:40 and 1: 60. Because the thickness of copper base plate 201 can influence the height of coefficient of heat conductivity, the utility model discloses an inventor discovers in the experiment, when the ratio of the thickness of the copper base plate 201 of light source subassembly 2 and the diameter of copper base plate 201 was between 1:40 to 1:60, both can guarantee that the coefficient of heat conductivity of copper base plate 201 is higher, realize quick heat conduction effect, simultaneously, the quantity of the LED lamp pearl 202 that can make set up on the copper base plate 201 can satisfy actual lighting needs, realizes heat conduction and lighting effect and compromises.

In one or some alternative embodiments, the upper surface of the copper substrate 201 of the light source assembly 2 of the LED projector has multiple sets of soldering points, each of which includes a heat conducting contact 2011 of a heat conducting pad and a positive terminal 2012 and a negative terminal 2013 of electrodes located on both sides of the heat conducting contact 2011; correspondingly, referring to fig. 3, the LED lamp bead 202 of the light source assembly 2 of the LED projection lamp includes a positive terminal 2022, a negative terminal 2023, and a heat conducting terminal 2021; when the light source assembly 2 is manufactured, the positive end 2022, the negative end 2023 and the heat conducting end 2021 of each LED lamp bead 202 are respectively and correspondingly welded and fixed with the positive terminal 2012, the negative terminal 2013 and the heat conducting contact 2011 of the corresponding welding point of the copper substrate 201 in an eutectic welding manner, so as to realize thermoelectric separation.

The embodiment of the utility model provides an in, set up the heat conduction contact 2011 of the heat conduction pad of copper base plate 201 between the positive wiring end 2012 and the negative wiring end 2013 of electrode, in LED lamp pearl 202 working process, can be even conduct the heat conduction pad with the heat that produces, realize the even heat dissipation of LED lamp pearl 202 to can increase the stability in use of LED lamp pearl 202, prolong the life of LED projecting lamp.

In one or some alternative embodiments, the heat pipe radiator 1 of the LED spot light includes a base 101, a plurality of heat pipes 102, and a plurality of heat sinks 103;

the heat pipe 102 of the heat pipe radiator 1 comprises a heat absorption part and a heat dissipation part, a plurality of grooves are arranged on the outer surface of the base 101 of the heat pipe radiator 1, the heat absorption part of the heat pipe 102 of the heat pipe radiator 1 is embedded in the grooves of the base 101 of the heat pipe radiator 1, and the outer surface of the heat absorption part of the heat pipe 102 of the heat pipe radiator 1 is flush with the outer surface of the base 101 of the heat pipe radiator 1;

the plurality of radiating fins 103 of the heat pipe radiator 1 are arranged in parallel at intervals and fixed on the inner surface of the base 101 of the heat pipe radiator 1;

the heat sink 103 of the heat pipe heat sink 1 is provided with a plurality of heat dissipating holes, and the heat dissipating part of the heat pipe 102 of the heat pipe heat sink 1 penetrates through one heat dissipating hole of the heat sink 103 of the heat pipe heat sink 1.

The utility model provides a heat absorption portion direct contact light source subassembly 2's copper base plate 201 of heat pipe radiator 1 of LED projecting lamp, the heat that LED lamp pearl 202 during operation produced, the heat after copper base plate 201 heat conduction is absorbed by heat pipe 102 more easily, has improved light source subassembly 2's radiating effect.

In one or some optional embodiments, the embodiment of the present invention provides an LED projection lamp, where the number of the plurality of heat pipes 102 of the heat pipe radiator 1 is 2N, where N is an integer, and the plurality of heat pipes 102 are uniformly and symmetrically arranged on the heat pipe radiator 1. In an embodiment, referring to fig. 1, the number of the heat pipes 102 of the heat pipe radiator 1 of the LED spot light provided by the embodiment of the present invention is 4.

The utility model provides a heat pipe 102 quantity of heat pipe radiator 1 of LED projecting lamp is the even number setting, and evenly arranges on heat pipe radiator 1, has guaranteed heat pipe radiator 1's even heat dissipation, prevents local overheat, guarantees that the LED lamp pearl 202 heat dissipation of light source subassembly 2 is even, and life and light efficiency are balanced.

In one or some optional embodiments, the embodiment of the present invention provides that the light source assembly 2 of the LED projection lamp is fixed on the base 101 of the heat pipe radiator 1, and the lower surface of the copper substrate 201 of the light source assembly 2 and the upper surface of the base 101 of the heat pipe radiator 1 are tightly attached to each other.

The embodiment of the utility model provides an in, on the base 101 with light source subassembly 2 lug fixation in heat pipe radiator 1, the lower surface of the copper base plate 201 of light source subassembly 2 with closely laminate between the upper surface of the base 101 of heat pipe radiator 1, make the heat absorption portion of the heat pipe 102 of heat pipe radiator 1 and the copper base plate 201 direct contact of light source subassembly 2, the heat that produces in the LED projecting lamp working process can more direct conduction to heat pipe radiator 1, and heat conduction efficiency is high, and the radiating effect is better.

In one or some alternative embodiments, a heat-conducting silicone grease is coated between the lower surface of the copper substrate 201 of the light source assembly 2 and the upper surface of the base 101 of the heat pipe radiator 1.

The embodiment of the utility model provides an in, direct contact when copper base plate 201 of light source subassembly 2 and heat pipe radiator 1's base 101 closely laminate, because consider copper base plate 201 and base 101 and set up the surface smoothness degree difference in the heat absorption portion of the heat pipe 102 of the ditch inslot of base 101, can produce the clearance between the lower surface of copper base plate 201 and the upper surface of base 101, thereby influence the heat conduction of copper base plate 201 to the heat absorption portion of base 101 and heat pipe 102, through the coating have heat conduction silicone grease between the upper surface of the lower surface of copper base plate 201 of light source subassembly 2 and heat pipe radiator 1's base 101, strengthen the heat conduction effect, can make faster the conduction of heat to heat pipe radiator 1, thereby give off in the air.

In one or some optional embodiments, the embodiment of the present invention provides an LED projection lamp, further including: a transparent lamp shade 3; the transparent lampshade 3 covers the LED lamp beads 202 and is fixed on the base 101 of the heat pipe radiator 1.

The utility model provides a set up transparent cover 3 on the light source subassembly 2 of LED projecting lamp, can prevent that the dust from covering LED lamp pearl 202, influence illumination intensity.

In one or some optional embodiments, the embodiment of the present invention provides an LED projection lamp, further including: a light reflecting cup; the reflecting cup is arranged on the outer side of the transparent lampshade 3 and is fixed on the base 101 of the heat pipe radiator 1.

The embodiment of the utility model provides an in, because LED lamp pearl 202's illumination angle is less, generally at 120 degrees within ranges, refracts LED lamp pearl 202's light through anti-light cup, has increased the illumination scope, the light energy that can effectual utilization LED lamp pearl 202 produced realizes energy-conservingly.

In one or some optional embodiments, the embodiment of the present invention provides an LED projection lamp, further including: the installation that is used for of setting in heat pipe radiator 1 both sides the mounting bracket 4 of LED projecting lamp, the tip of mounting bracket 4 is fixed in on the lateral wall of heat pipe radiator 1's base 101.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the 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 include such modifications and variations.

Claims

1. An LED projection lamp is characterized by comprising a heat pipe radiator (1) and a light source component (2);

the light source assembly (2) comprises a copper substrate (201) and LED lamp beads (202), wherein the LED lamp beads (202) are fixed with the copper substrate (201) in an eutectic welding mode; the heat conducting bonding pad of the copper substrate (201) is insulated and isolated from the electrode;

the copper substrate (201) of the light source component (2) is in thermal contact with the heat pipe (102) of the heat pipe radiator (1);

the LED lamp beads (202) are uniformly arranged on the copper substrate (201) in an annular mode, and the ratio of the distance interval of the central points of two adjacent LED lamp beads (202) to the diameter of the copper substrate (201) is 1: 8-1: 14.

2. The LED light projector as claimed in claim 1 characterized in that the upper surface of the copper substrate (201) has a plurality of sets of soldering points, each soldering point comprising a heat conducting contact (2011) of a heat conducting pad and a positive terminal (2012) and a negative terminal (2013) of electrodes located on both sides of the heat conducting contact (2011);

the LED lamp bead (202) comprises a positive end, a negative end and a heat conducting end;

the positive terminal, the negative terminal and the heat conduction terminal of the LED lamp bead (202) are respectively and correspondingly eutectic-welded and fixed with the positive wiring terminal (2012), the negative wiring terminal (2013) and the heat conduction contact (2011) of the welding point.

3. LED light projector according to claim 1, characterised in that said heat pipe radiator (1) comprises a base (101), a plurality of heat pipes (102) and a plurality of heat sinks (103);

the outer surface of the base (101) is provided with a plurality of grooves, the heat absorption part of the heat pipe (102) is embedded in the grooves of the base (101), and the outer surface of the heat absorption part of the heat pipe (102) is flush with the outer surface of the base (101);

the plurality of radiating fins (103) are arranged in parallel at intervals and fixed on the inner surface of the base (101);

the radiating fin (103) is provided with a plurality of radiating holes, and the radiating part of the heat pipe (102) penetrates through one radiating hole of the radiating fin (103).

4. The LED spot light according to claim 3, characterized in that the light source assembly (2) is fixed on the base (101) of the heat pipe radiator (1), and the lower surface of the copper substrate (201) of the light source assembly (2) is closely attached to the upper surface of the base (101) of the heat pipe radiator (1).

5. The LED projector lamp according to claim 4, characterized in that a heat-conducting silicone grease is coated between the lower surface of the copper substrate (201) of the light source assembly (2) and the upper surface of the base (101) of the heat-pipe radiator (1).

6. The LED floodlight of claim 4, further comprising: a transparent lamp cover (3); the transparent lampshade (3) covers the LED lamp beads (202) and is fixed on the base (101) of the heat pipe radiator (1).

7. The LED light projector of claim 6 further comprising: a light reflecting cup; the reflection cup is arranged on the outer side of the transparent lampshade (3) and fixed on the base (101) of the heat pipe radiator (1).

8. The LED light projector according to claim 3, characterized in that the number of the plurality of heat pipes (102) is 2N, where N is an integer, and the plurality of heat pipes (102) are evenly and symmetrically arranged on the heat pipe radiator (1).

9. The LED light projector of claim 3 further comprising: the LED spot light is characterized in that the mounting frames (4) arranged on two sides of the heat pipe radiator (1) and used for mounting the LED spot light are arranged, and the end parts of the mounting frames (4) are fixed on the side wall of the base (101) of the heat pipe radiator (1).

10. LED projector according to any of the claims 1 to 9, characterised in that the ratio of the thickness of the copper substrate (201) of the light source assembly (2) to the diameter of the copper substrate (201) is comprised between 1:40 and 1: 60.