CN201672300U

CN201672300U - Large-power LED lamp bar

Info

Publication number: CN201672300U
Application number: CN2010201845784U
Authority: CN
Inventors: 郑兆勇; 章晟; 林万炯
Original assignee: 林万炯
Current assignee: Ningbo Self Electronics Co Ltd
Priority date: 2010-05-07
Filing date: 2010-05-07
Publication date: 2010-12-15
Anticipated expiration: 2020-05-07

Abstract

The utility model provides a large-power LED lamp bar comprising a heat radiation base, an electricity conducting bar, an LED unit and a light guide lens, wherein the heat radiation base and the light guide lens are bar-shaped; the heat radiation base is made of metal material or alloy material with heat conducting property; the appearance of the heat radiation base is like a gear, the outer surface is provided with convex ribs which are formed by protruding outwards and arranged at intervals; the electricity conducting bar and the LED unit are arranged on the heat radiation base; the heat radiation bottom of the LED unit is tightly clung to the upper surface of the heat radiation base; the electricity conducting part of the LED unit is electrically connected with the electricity conducting bar; and the light guide lens is arranged on the heat radiation base to guide light sent from the LED unit. The lamp bar realizes high-brightness illumination output by adopting the large-power LED unit; the designed constituting elements of the lamp bar are simple and convenient for production and assembly; and the heat radiation design of the lamp bar enables the LED unit arranged in the reflector lamp to realize long service life and long optical attenuation period.

Description

Great power LED bar lamp

Technical field

The utility model relates to a kind of lighting, particularly relates to a kind of great power LED bar lamp.

Background technology

Along with the brightness of led chip unit improves constantly, and the little characteristics of luminous efficiency height, rich color, volume that have, the LED light-emitting component as the light emitting source of lighting by being widely applied in the different lightings gradually, the LED lamp is also as a kind of new-type lighting and more and more general the appearing in the daily use of decorative lamp, and along with energy conservation and environment protection, the power savings advantages that the LED lamp is intrinsic makes it have wide use market.

Traditional LED lamp is less to the efficient that electric energy converts luminous energy to mainly due to the LED unit, be roughly about 15%, and owing in the LED cell operation most of power conversion is become heat energy, heat energy is many more, then the operating temperature of light fixture is high more, and then make that working time of LED unit is short more and light decay is fast more, so traditional LED lamp is mainly used the decorating lighting lamp that the low-power LED unit is realized, avoid because the insurmountable problem of heat that large-power lamp brings with this.

So the overall construction design of light fixture, convenient, safe requirement in the heat radiation of light fixture and the use become the essential requirement of high-powered LED lamp, and all unresolved this problem of existing light fixture.

The utility model content

The purpose of this utility model is the defective that exists at above-mentioned prior art, a kind of great power LED bar lamp is provided, this lamp adopts the great power LED unit to realize the illumination output of high brightness, the design composed component of this lamp is simple, be convenient to production and assembly, and the heat dissipation design of this lamp makes the LED unit that is provided with in this shot-light can realize that permanent service life and light decay phase are long.

For achieving the above object, a kind of great power LED bar lamp that the utility model provides comprises heat dissipation base, bus, LED unit and light guiding lens.This heat dissipation base and light guiding lens are in strip, heat dissipation base is made by metal material with heat conductivility or alloy material, the appearance of this heat dissipation base is gear-like, outwards protrude out on the outer surface and form the raised line that is provided with at interval, bus and LED unit are arranged on the heat dissipation base, the heating bottom and the upper surface of heat dissipation base of this LED unit are close to setting, and the conductive part of LED unit is electrically connected with bus, and light guiding lens is arranged at the light that sends with conduction LED unit on the heat dissipation base.The heat dissipation base both sides formation slot that caves inward, this light guiding lens is stretched by optical plastic or extrusion molding forms, the light guiding lens both sides inwardly form and snap in part, this snaps in part and is inserted in the slot that the heat dissipation base both sides form, and LED unit and bus are contained in the space that light guiding lens and heat dissipation base enclose.The upper surface of heat dissipation base is opening-like, and the upper surface both sides upwards protrude out and are formed with the bar of replacing that is strip, replace the downside that bar upwards is resisted against light guiding lens.The upper surface middle part of heat dissipation base is recessed to form fluted downwards, and the bus that is formed by flexible PCB is embedded in the groove of heat dissipation base upper surface.Light guiding lens is any one in plano-convex pattern lens, V-type pattern lens or the Fresnel pattern lens.

This great power LED bar lamp also includes plug, and this plug is arranged at an end of heat dissipation base and is electrically connected with bus.Great power LED bar lamp further includes left and right sleeve, and the left and right sleeve that is hollow form is arranged at the two ends of cooling circuit board and light guiding lens, and left sleeve is fixed together plug and heat dissipation base and light guiding lens, and this plug is coaxial attachment plug.Great power LED bar lamp further includes socket, and this socket is coaxial gang socket, and this socket is arranged at the other end corresponding with socket, and this socket has been contained in the sleeve, and this socket can be pegged graft mutually and electrically conduct with plug.

As mentioned above, the utility model great power LED bar lamp, the heating bottom and the upper surface of heat dissipation base of LED unit are close to setting, the conductive part of LED unit is electrically connected with the bus that is formed by flexible PCB, for LED unit, bus and heat dissipation base are realized being welded to connect, adopt the Reflow Soldering mode to realize, because flexible PCB is because good pliability, make the time through Reflow Soldering, the heat of its generation internal stress that rises is not enough to make LED unit displacement, so avoided the situation of sealing-off, rosin joint, improved the product qualified rate of product.The high-power LED unit to be realizing the high brightness of the high-power and output light of light fixture, and makes the LED unit that is installed in it that lower operating ambient temperature be arranged, and makes prolong the service life of LED unit.

Description of drawings

In Figure of description:

Fig. 1 is the schematic perspective view of the utility model great power LED bar lamp;

Fig. 2 is the three-dimensional exploded view of the utility model great power LED bar lamp;

Fig. 3 is the cutaway view along A-A line among Fig. 1.

The description of reference numerals of each element is as follows among the figure:

Great power LED bar lamp 1 heat dissipation base 10

Loading end 11 grooves 12

Raised line 13 slots 14

Replace bar 15 bus 21

LED unit 22 light guiding lens 30

Snap in part 31 plugs 40

Left side sleeve 51 right sleeves 52

The specific embodiment

For describing technology contents of the present utility model, architectural feature, the purpose that is realized and effect in detail, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

See also Fig. 1 to Fig. 3, for realizing the use of great power LED unit in lamp lighting, the LED unit 22 that this great power LED bar lamp 100 adopts is high-power, high brightness.This great power LED bar lamp 100 comprises heat dissipation base 10, bus 21, LED unit 22, light guiding lens 30, plug 40 and left and right sides sleeve 51,52.These LED bar lamp 100 integral body are the body length strip.

This heat dissipation base 10 is made by metal material with good heat conductive performance or alloy material, these heat dissipation base 10 cross sections are semicircle shape, its underpart outer surface is gear-like, outwards protrude out on the lower external face and form the raised line 13 that is provided with at interval, heat dissipation base 10 both sides cave inward and form slot 14, and this slot 14 is fixed in light guiding lens 30 on the heat dissipation base 10 in order to the mode with plug-in mounting.The upper surface of heat dissipation base 10 is opening-like, the upper surface both sides upwards protrude out be formed be strip replace bar 15, be recessed to form flutedly 12 downwards in upper surface middle part, this groove 12 is in order to accommodate bus 21.

This light guiding lens 30 is stretched by optical plastic or extrusion molding forms, be bar shaped substantially in order to be plugged in heat dissipation base 10 tops, light guiding lens 20 both sides inwardly form and snap in part 31, this snaps in part 31 and is inserted in the slot 14 that heat dissipation base 10 both sides form, and makes heat dissipation base 10 and light guiding lens 30 be assembled into one.Wherein LED unit 22 and bus 21 are contained in the space that light guiding lens 30 and heat dissipation base 10 enclose.LED unit 22 and heat dissipation base 10 are close to the heat of setting in order to 22 work of LED unit the time and are given off via this heat dissipation base 10, with the operating temperature that reduces LED unit 22 and prolong its service life.This bus 21 is a flexible PCB, is embedded in the groove 12 of heat dissipation base 10 upper surfaces, and LED unit 22 electrically connects with this bus 21.Replace the downside that bar 15 upwards is resisted against light guiding lens 30 for two of heat dissipation base 10, preventing making light guiding lens 30 conflict LED unit 22, and then prevent destruction LED unit 22 owing to external pressure compresses light guiding lens 30.

Plug 40 is arranged at the left side of heat dissipation base 10, and this plug 40 is electrically connected with bus 21, and wherein this plug 40 is in particular coaxial attachment plug.Left and

right sides sleeve

51,52 is hollow form, is arranged at the two ends of LED lamp bar 100, and left sleeve 51 is fixed together plug 40 and heat dissipation base 10 and light guiding lens 30.This left and right sides sleeve 521,52 is sheathed on the two ends of LED lamp bar 100 simultaneously, to prevent that relative heat dissipation bases of light guiding lens 30 10 are loosening and to slide.

The heating bottom and the upper surface of heat dissipation base 10 of this LED unit 22 are close to setting, and the conductive part of LED unit 22 is electrically connected with the bus that is formed by flexible PCB 21.For LED unit 22, bus 21 and heat dissipation base 10 are realized being welded to connect, the general Reflow Soldering mode that adopts realizes, and in the Reflow Soldering, because different material thermal expansion factors differs, if adopt traditional hard circuit board, then occur easily occurring sealing-off, rosin joint situation between LED unit 22 and hard circuit board and the heat dissipation base 10, and then influence the good yield rate of product.And because flexible PCB because good pliability, makes that through Reflow Soldering the time heat of its generation internal stress that rises is not enough to make the displacement of LED unit, so avoided the situation of sealing-off, rosin joint.

In concrete the application, can in right sleeve 52, coaxial Connection Block be set, this Connection Block can be pegged graft mutually with plug 40, to realize the directly socket connection mutually of a plurality of LED bar lamps 100.Owing to adopt coaxial plug and socket connector, make this lamp in use, the projecting direction of its light can be realized according to the rotation direction of lamp body, and two lamp bodies of pegging graft mutually can arbitrarily angled mutual rotation.The light guiding lens that adopts in the utility model is any one in plano-convex pattern lens, V-type pattern lens or the Fresnel pattern lens.

In sum, protection domain of the present utility model is not limited to the foregoing description, still all should belong to interest field of the present utility model as for the change of component count described in this specification or the replacement of equivalent elements etc.

Claims

1. great power LED bar lamp, comprise heat dissipation base, bus, LED unit and light guiding lens, it is characterized in that: this heat dissipation base and light guiding lens are in strip, heat dissipation base is made by metal material with heat conductivility or alloy material, the appearance of this heat dissipation base is gear-like, outwards protrude out on the outer surface and form the raised line that is provided with at interval, bus and LED unit are arranged on the heat dissipation base, the heating bottom and the upper surface of heat dissipation base of this LED unit are close to setting, the conductive part of LED unit is electrically connected with bus, and light guiding lens is arranged at the light that sends with conduction LED unit on the heat dissipation base.

2. great power LED bar lamp according to claim 1, it is characterized in that: the heat dissipation base both sides formation slot that caves inward, this light guiding lens is stretched by optical plastic or extrusion molding forms, the light guiding lens both sides inwardly form and snap in part, this snaps in part and is inserted in the slot that the heat dissipation base both sides form, and LED unit and bus are contained in the space that light guiding lens and heat dissipation base enclose.

3. great power LED bar lamp according to claim 2, it is characterized in that: the upper surface of heat dissipation base is opening-like, and the upper surface both sides upwards protrude out and are formed with the bar of replacing that is strip, replace the downside that bar upwards is resisted against light guiding lens.

4. great power LED bar lamp according to claim 3, it is characterized in that: the upper surface middle part of heat dissipation base is recessed to form fluted downwards, and the bus that is formed by flexible PCB is embedded in the groove of heat dissipation base upper surface.

5. great power LED bar lamp according to claim 4 is characterized in that: light guiding lens is any one in plano-convex pattern lens, V-type pattern lens or the Fresnel pattern lens.

6. great power LED bar lamp according to claim 1 is characterized in that: this great power LED bar lamp further includes plug, and this plug is arranged at an end of heat dissipation base and is electrically connected with bus.

7. great power LED bar lamp according to claim 6, it is characterized in that: great power LED bar lamp further includes left and right sleeve, the left and right sleeve that is hollow form is arranged at the two ends of cooling circuit board and light guiding lens, left side sleeve is fixed together plug and heat dissipation base and light guiding lens, and this plug is coaxial attachment plug.

8. great power LED bar lamp according to claim 7, it is characterized in that: great power LED bar lamp further includes socket, this socket is coaxial gang socket and electrically connects with bus, this socket is arranged at the other end corresponding with socket, this socket is contained in the right sleeve, and this socket can be pegged graft mutually and electrically conduct with plug.