CN201582592U

CN201582592U - LED illuminating lamp

Info

Publication number: CN201582592U
Application number: CN200920200813XU
Authority: CN
Inventors: 陈荣生
Original assignee: Individual
Current assignee: ANHUI ZERUN OPTOELECTRONIC Co Ltd
Priority date: 2009-11-24
Filing date: 2009-11-24
Publication date: 2010-09-15
Anticipated expiration: 2019-11-24

Abstract

The utility model discloses an LED illuminating lamp, which comprises a lamp cap, a heat-conducting column, a heat-radiating module formed by combining a plurality of heat-radiating fins, an LED substrate, an LED lamp arranged on the LED substrate, a transparent cover body, an annular protective jacket and a circuit unit, wherein the heat-conducting column is cylindrical and comprises a top end surface; a plurality of slots are distributed on the circumferential surface of the heat-conducting column; the heat-radiating fins are respectively inserted into the slots on the periphery of the heat-conducting column and are radially distributed at intervals; a concave step is formed on the top end surface of the heat-conducting column; and the LED substrate is fixed on the top end surface of the heat-conducting column. In the technical scheme, the bottom surface of the LED substrate is in complete and full contact with the top end surface of the heat-conducting column, the contact area of the bottom surface of the LED substrate and the top end surface of the heat-radiating column can be increased by inserting the heat-radiating fins and the heat-conducting column, so the utility model can ensure the smooth of a heat transfer channel and has favorable heat-radiating effect; and in addition, the manufacture and the assembly of the heat-radiating fins are simpler and more convenient and the manufacturing cost is reduced.

Description

A kind of LED illuminating lamp

Technical field

The utility model belongs to lighting technical field, particularly relates to a kind of LED illuminating lamp with radiating fin.

Background technology

Publication number is that the patent documentation of CN201212664Y discloses a kind of led lamp device, comprising: the LED unit; One heating column, it is a tubular, and includes a top and a bottom, and is provided with a through hole on described top; One radiating module, made up by a plurality of radiating fin, and closing is radial interval annular serial connection in the periphery of described heating column, and expand a predeterminable range outward at the described top end of described heating column in described radiating fin closing, a top that makes described radiating fin be looped around described heating column forms the recessed rank with described heating column axle center; One substrate, it provides described LED unit in conjunction with thereon, and is arranged on the formed described recessed rank of described radiating fin central authorities; At least one lid, it is to be positioned at the described recessed rank of described radiating module central authorities and to cover on the LED unit; One sheath, it is that the doubling-up of the external surrounding frame of described radiating module cover is surrounded; One base (lamp holder), it is a hollow housing, is provided with an opening up, with the bottom of described heating column around described radiating fin interfix; And a circuit board, comprising a circuit loop, it is arranged in the described base, and does electric connection by the described through hole on the described heating column with the LED unit that institute on the described substrate combines.

In the said structure, radiating fin all is formed with bending edge to increase thermocontact area at the place, recessed rank of placing the LED substrate with the heating column position contacting, and the heat of LED substrate and heating column is passed to the radiating fin heat radiation by these bending edges.But, because radiating fin is a stamping parts, have bigger processing and assembly error between a plurality of radiating fins, so the bending edge of the radiating fin after can causing assembling and the thermocontact area between LED substrate and the heating column are less, the problem such as bad of dispelling the heat.

Summary of the invention

In order to solve above-mentioned technical problem, the purpose of this utility model provides a kind of LED illuminating lamp, improves the heat transfer pathway of radiating fin and LED substrate and heating column, guarantees radiating effect.

To achieve the above object, the utility model has adopted following technical scheme:

A kind of LED illuminating lamp, comprise lamp holder, heating column, radiating module, LED substrate and LED lamp, transparent cover body, ring jacket and circuit unit on it are set by a plurality of radiating fin combined, described heating column is tubular and includes a top end face, and be distributed with a plurality of slots on the periphery of heating column; Described a plurality of radiating fin is plugged on respectively in the slot of described heating column periphery and is radial spaced apart, and forms recessed rank at the top end face place of described heating column; Described LED substrate is fixed on the heating column top end face.

Described transparent cover body is positioned at the recessed rank of described radiating module central authorities and covers on the LED lamp.

Described ring jacket surrounds the external surrounding frame cover doubling-up of described radiating module.

Described lamp holder is a hollow housing, and described radiating module bottom snaps in lamp holder and fixing in the lump by the bottom that is located at bayonet socket on the radiating fin and described heating column.

Described LED substrate is fixed on the heating column top end face by screw.

Described LED substrate, heating column and radiating fin are iron, copper, aluminium, silver, gold or its alloy.

The utility model is owing to adopted above technical scheme, the bottom surface of LED substrate all fully contacts with the top end face of heating column, pegging graft by radiating fin and heating column to increase both contacts area, can guarantee that like this heat transfer pathway is unobstructed, has better heat radiating effect; And, the manufacturing of radiating fin, the assembling more simple and convenient, reduced manufacturing cost.

Description of drawings

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

Fig. 2 is the structural representation of heating column;

Fig. 3 is the structural representation of radiating fin.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.

Embodiment 1:

As Fig. 1～a kind of LED illuminating lamp shown in Figure 3, radiating module, the LED substrate 5 that comprise lamp holder 1, heating column 4, is combined by a plurality of radiating fins 2 and LED lamp 6, transparent cover body 7, ring jacket 3 and circuit unit on it are set; As shown in Figure 2, described heating column 4 is a tubular, and includes a top end face, and is provided with a through hole 43 and a screw 42 on described top end face, and is distributed with a plurality of slots 41 on periphery; Described a plurality of radiating fin 2 is plugged on respectively in the slot 41 of described heating column 4 peripheries and is radial spaced apart, thereby and expand a distance outward at the top end face place of described heating column 4 and form recessed rank 22 at the top end face of described heating column 4; LED substrate 5 is fastened on heating column 4 top end faces by screw, screw 42, between the two the coating heat-conducting glue; Transparent cover body 7 is positioned at the described recessed rank of described radiating module central authorities and covers on LED lamp 6; Ring jacket 3 surrounds the external surrounding frame cover doubling-up of radiating fin 2 in the described radiating module; Described lamp holder 1 is a hollow housing, and described radiating module bottom snaps in lamp holder 1 in the lump by the bottom that is located at bayonet socket 21 and described heating column 4 on the radiating fin 2 and is adhesively fixed; Circuit unit is arranged in the described lamp holder 1, and is connected with LED lamp lead on the described LED substrate 5 by the described through hole 43 on the described heating column 4.

Above-mentioned LED substrate 5, heating column 4, radiating fin 2 and ring jacket 3 can be selected a kind of in metals such as the good iron of thermal conductivity, copper, aluminium, silver, gold or the alloy, and present embodiment all adopts aluminium matter; In the present embodiment, described heating column is left the slot of a plurality of up/down perforations around by a cylindrical shape aluminium section and is fixed a circular aluminium dish in centre bore top tight fit (perhaps welding) and make.

This programme is pegged graft by above-mentioned radiating fin and heating column can increase both contacts area, and the bottom surface of LED substrate all fully contacts with the top end face of heating column, can guarantee the unobstructed and better heat radiating effect of heat transfer pathway like this.In order to guarantee can fully to contact after radiating fin and heating column are pegged graft, can adopt the design of preheating tight fit first, second can behind the grafting radiating fin, the end face extruding of carrying out to heating column contact closely with assurance.

Claims

1. LED illuminating lamp, radiating module, the LED substrate (5) that comprises lamp holder (1), heating column (4), combined by a plurality of radiating fins (2) and LED lamp (6), transparent cover body (7), ring jacket (3) and circuit unit on it are set, it is characterized in that, described heating column (4) is for tubular and include a top end face, and is distributed with a plurality of slots (41) on the periphery of heating column (4); Described a plurality of radiating fin (2) is plugged on respectively in the peripheral slot (41) of described heating column (4) and is radial spaced apart, and forms recessed rank (22) at the top end face place of described heating column (4); Described LED substrate (5) is fixed on heating column (4) top end face.

2. a kind of LED illuminating lamp according to claim 1 is characterized in that, described transparent cover body (7) is positioned at the recessed rank (22) of described radiating module central authorities and covers on LED lamp (6).

3. a kind of LED illuminating lamp according to claim 1 is characterized in that, described ring jacket (3) surrounds the external surrounding frame cover doubling-up of described radiating module.

4. a kind of LED illuminating lamp according to claim 1, it is characterized in that, described lamp holder (1) is a hollow housing, and described radiating module bottom snaps in lamp holder (1) and fixing in the lump by the bottom that is located at bayonet socket (21) and described heating column (4) on the radiating fin (2).

5. a kind of LED illuminating lamp according to claim 1 is characterized in that, described LED substrate (5) is fixed on heating column (4) top end face by screw.

6. according to each described a kind of LED illuminating lamp in the claim 1 to 5, it is characterized in that described LED substrate (5), heating column (4) and radiating fin (2) are iron, copper, aluminium, silver, gold or its alloy.