CN203453867U

CN203453867U - LED down lamp

Info

Publication number: CN203453867U
Application number: CN201320557259.7U
Authority: CN
Inventors: 江涛; 应威胜; 朱卫军
Original assignee: Zhejiang Super Lighting Electric Appliance Co Ltd (CN)
Current assignee: Zhejiang Super Lighting Electric Appliance Co Ltd (CN)
Priority date: 2013-09-10
Filing date: 2013-09-10
Publication date: 2014-02-26
Anticipated expiration: 2023-09-10

Abstract

The utility model discloses an LED down lamp which comprises a plurality of LED chips and a fixing seat for fixing the LED chips. The fixing seat is made of ceramics, the front end face of the fixing seat is provided with a fixing groove, metal circuit boards are arranged in the fixing groove, the LED chips are electrically connected with the metal circuit boards, the outer side of the fixing seat is sleeved with a down lamp casing, and the rear end face of the fixing seat is provided with an LED driver. The fixing seat is made of the ceramics, and the ceramics have good supporting strength, heat dissipation performance and insulating performance, so that the LED chips can dissipate heat effectively and are high in luminous efficiency and long in service lives; the metal circuit boards are good in insulating performance, short circuiting is avoided, and the LED down lamp is safer to use.

Description

A kind of LED Down lamp

Technical field

The utility model relates to LED lamp technical field, relates in particular to a kind of LED Down lamp.

Background technology

Existing LED Down lamp, light source adopts many permutation and combination list LEDs through processing welding in the circuit board, again wiring board and heat-dissipating casing are fixed, lens are again on mounting casing, lens light well position is placed on LED lamp pearl, reach a light distribution effect, the heat of LED lamp pearl must be transmitted on LED support like this, from LED support, upload to wiring board again, from wiring board, be transmitted on heat-dissipating casing again, through multilayer thermal resistance, make heat be difficult to distribute, around LED chip, radiating effect is poor easily causes light decay, thereby has a strong impact on the service life of LED chip.

Chinese patent Granted publication number: CN203082701U, July 24 2013 Granted publication day, a kind of LED Down lamp of openly knowing clearly, LED Down lamp comprises substrate, LED Down lamp also comprises: integrated optical source, is arranged on substrate; Reflector, is located in integrated optical source.The LED Down lamp of this kind of structure has solved LED Down lamp in prior art effectively because divergence of beam causes reaching the problem of lighting requirement.Even if the heat that its weak point is LED lamp pearl to be sent cannot be arranged, shed, thereby cause LED lamp pearl environment temperature too high and produce light decay, have a strong impact on the luminous of LED, also can shorten the service life of LED lamp pearl.

Utility model content

The utility model is large in order to overcome LED Down lamp internal thermal resistance of the prior art, the heat that LED produces can not distribute in time, thereby affects the deficiency in the service life of LED Down lamp, and a kind of good heat dissipation effect is provided, luminous efficiency is high, the LED Down lamp of long service life.

To achieve these goals, the utility model adopts following technical scheme:

A kind of LED Down lamp, comprise some LED chips and for the holder of fixed L ED chip, described holder is made by pottery, the front end face of described holder is provided with holddown groove, in described holddown groove, be provided with metal circuit board, between LED chip and metal circuit board, be electrically connected to, the outside of described holder is arranged with Down lamp shell, and the rear end face of holder is provided with LED driver.Holder is made by pottery, and pottery has good support strength, perfect heat-dissipating, and good insulation preformance, thus can keep LED chip effectively to dispel the heat, LED chip luminous efficiency is high, long service life; Good insulation preformance between metal circuit board, can not be short-circuited, and uses safer.

As preferably, the outside of each LED chip is provided with lens, and the inner side, outer end of described Down lamp shell is provided with lens pressing plate, and lens pressing plate is provided with the loophole corresponding with lens.Lens have the effect of optically focused, and the light that LED chip is sent is more concentrated, and lens also have certain protective effect to LED chip simultaneously.

As preferably, described lens are fluorescent lens.After LED chip energising, send blue light, fluorescent material in blue-light excited fluorescent lens sends gold-tinted, blue light emits white light in conjunction with gold-tinted, this kind of white light is long-range light, irradiation distance is far away, owing to being that fluorescence excitation lens are luminous, with the fluorescent material on optical lens, is evenly distributed, therefore light is even, and illumination effect is good.

As preferably, on holder, be provided with LED positioning boss with the corresponding position of LED chip, the rear end of LED chip contacts with LED positioning boss, and described LED positioning boss is made by pottery.The heat part that LED chip distributes passes to metal circuit board by LED pin, then by holder, distributes, and another part heat is directly passed to LED positioning boss, then passes to holder, and it is little that heat transmits thermal resistance, rapid heat dissipation.

As preferably, described LED positioning boss and holder are integral type structure.Integral structure low cost of manufacture, connects reliable.

As preferably, in described holder, be provided with air vent, described air vent runs through the side of holder.Holder can distribute from disposed at air vent after absorbing heat, good heat dissipation effect.

As preferably, between the rear end face of described holder and LED driver, be provided with some support columns.Support column makes to have heat radiation gap between holder rear end face and LED driver, and radiating effect is better.

Therefore, the utlity model has good heat dissipation effect, luminous efficiency is high, the beneficial effect of long service life.Meanwhile, due to holder good insulation preformance, thereby make definitely insulation between Down lamp shell and holder, use safer.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is explosive view of the present utility model.

Fig. 3 is cutaway view of the present utility model.

In figure: LED chip 1 holder 2 holddown groove 3 metal circuit board 4 Down lamp shell 5 LED driver 6 lens 7 lens pressing plate 8 loophole 9 LED positioning boss 10 air vent 11 support columns 12.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further described:

A kind of LED Down lamp as depicted in figs. 1 and 2, comprise some LED chips 1 and for the holder 2 of fixed L ED chip, holder 2 is made by pottery, the front end face of holder 2 is provided with holddown groove 3, in holddown groove 3, be provided with metal circuit board 4, between LED chip 1 and metal circuit board 4, be electrically connected to, as shown in Figure 3, on holder 2, be provided with LED positioning boss 10 with the corresponding position of LED chip, the rear end of LED chip 1 contacts with LED positioning boss 10, LED positioning boss 10 is made by pottery, LED positioning boss 10 is integral type structure with holder 2, the outside of holder 2 is arranged with Down lamp shell 5, the side of Down lamp shell is connected with holder by screw, the rear end face of holder 2 is provided with LED driver 6, holder is made by pottery, pottery has good support strength, perfect heat-dissipating, good insulation preformance, thereby can keep LED chip effectively to dispel the heat, LED chip luminous efficiency is high, long service life, good insulation preformance between metal circuit board, can not be short-circuited, and uses safer, the outside of each LED chip 1 is provided with lens 7, the inner side, outer end of Down lamp shell 5 is provided with lens pressing plate 8, lens pressing plate 8 is provided with the loophole corresponding with lens 9, and the lens 7 in the present embodiment are fluorescent lens, after LED chip energising, sends blue light, fluorescent material in blue-light excited fluorescent lens sends gold-tinted, blue light emits white light in conjunction with gold-tinted, and this kind of light is long-range light, owing to being that fluorescence excitation lens are luminous, make light even, illumination effect is good, as shown in Figure 3, in holder 2, be provided with air vent 11, air vent 11 runs through the side of holder 2, is provided with some support columns 12 between the rear end face of holder 2 and LED driver 6, support column makes to have heat radiation gap between holder rear end face and LED driver, and radiating effect is better.Therefore, the utlity model has good heat dissipation effect, luminous efficiency is high, the beneficial effect of long service life.Meanwhile, due to holder good insulation preformance, thereby make definitely insulation between Down lamp shell and holder, use safer.

Claims

1. a LED Down lamp, it is characterized in that, comprise some LED chips (1) and for the holder (2) of fixed L ED chip, described holder (2) is made by pottery, the front end face of described holder (2) is provided with holddown groove (3), in described holddown groove (3), be provided with metal circuit board (4), between LED chip (1) and metal circuit board (4), be electrically connected to, the outside of described holder (2) is arranged with Down lamp shell (5), and the rear end face of holder (2) is provided with LED driver (6).

2. a kind of LED Down lamp according to claim 1, it is characterized in that, the outside of each LED chip (1) is provided with lens (7), and the inner side, outer end of described Down lamp shell (5) is provided with lens pressing plate (8), and lens pressing plate (8) is provided with the loophole corresponding with lens (9).

3. a kind of LED Down lamp according to claim 2, is characterized in that, described lens (7) are fluorescent lens.

4. according to a kind of LED Down lamp described in claim 1 or 2 or 3, it is characterized in that, holder (2) corresponding position upper and LED chip is provided with LED positioning boss (10), and the rear end of LED chip (1) contacts with LED positioning boss (10), and described LED positioning boss (10) is made by pottery.

5. a kind of LED Down lamp according to claim 4, is characterized in that, described LED positioning boss (10) is integral type structure with holder (2).

6. a kind of LED Down lamp according to claim 1, is characterized in that, is provided with air vent (11) in described holder (2), and described air vent (11) runs through the side of holder (2).

7. according to a kind of LED Down lamp described in claim 1 or 6, it is characterized in that, between the rear end face of described holder (2) and LED driver (6), be provided with some support columns (12).