CN202303276U

CN202303276U - Radiator structure of light-emitting diode (LED) tube lamp

Info

Publication number: CN202303276U
Application number: CN2011203874216U
Authority: CN
Inventors: 方萍; 张坤智
Original assignee: FUJIAN MINDA PHOTOELECTRIC CO LTD
Current assignee: FUJIAN MINDA PHOTOELECTRIC CO LTD
Priority date: 2011-10-13
Filing date: 2011-10-13
Publication date: 2012-07-04
Anticipated expiration: 2021-10-13

Abstract

The utility model discloses a radiator structure of an LED tube lamp, comprising a radiation shell; the radiation shell comprises a top surface and an annular side wall, and the top surface is provided with a threading hole; a plurality of radiation columns are arranged on the top end of the top surface of the radiation shell, and an interval is left between the two adjacent radiation columns. By adopting the structure, the heat conducted to the radiation column be fast diffused to air by utilizing a large contact area between the radiation column and the air, and meanwhile, the convection of he heat conducted to the radiation column and the heat around each of the radiation columns can be realized so as to be fast diffused outwards by using the intervals among the radiation columns. Therefore, the radiator structure of the LED tube lamp has an obvious radiation effect, and is beneficial for improving the lighting effect and the service life of the LED lamp.

Description

A kind of radiator structure of LED Down lamp

Technical field

The utility model relates to a kind of radiator structure of LED Down lamp, particularly relates to the radiator structure of the significant LED Down lamp of a kind of radiating effect.

Background technology

The LED lamp is compared with conventional light source as the energy-conserving light source of a new generation, has many advantages, and for example, compact conformation, volume is little, power consumption is low, the life-span is long etc., thereby the LED lamp is widely used under the current overall situation of advocating low-carbon energy-saving.Yet the heat dissipation problem of LED lamp is the main cause that influences its light efficiency and service life, also is one of basic reason of its development of restriction.The radiator structure of traditional LED Down lamp mainly is the housing of a metal material; Rely on the heat dispersion heat that the LED Down lamp is inner of metal material to pass to the external world; (housing is blocked up can waste a large amount of heat radiating materials but because the thickness of housing is limited; Lose more than gain), cause still can gathering a large amount of heats in the housing and light efficiency and service life thereof of influencing LED.For this reason, general way is at the sidewall or the top of housing heat-dissipating fin to be set at present, utilizes the contact area of heat-dissipating fin increase and air, thereby realizes better radiating effect.This no doubt can improve the radiating effect of LED Down lamp to a certain extent; But because heat-dissipating fin in the form of sheets; Form barrier effect, the heat between heat that causes gathering on the heat-dissipating fin and the adjacent heat-dissipating fin can't convection current, thereby heat is comparatively slow to the speed of external diffusion.Obviously, this LED Down lamp of prior art radiating effect be still waiting to improve.

The utility model content

The purpose of the utility model is to overcome the deficiency of prior art, and a kind of radiator structure of LED Down lamp is provided, and its radiating effect is remarkable, has solved the existing weak point of above-mentioned background technology.

The utility model solves the technical scheme that its technical problem adopted: a kind of radiator structure of LED Down lamp; Comprise a radiating shell; This radiating shell is made up of the sidewall of end face and ring-type; And end face is provided with cable-through hole, and the top of the end face of this radiating shell is laid with a plurality of thermal columns, and is provided with spacing between the adjacent thermal column.

The border, the outside of the sidewall of said radiating shell evenly is laid with a plurality of heat radiation ribs, and each heat radiation rib is extended to its bottom by the top of the sidewall of said radiating shell respectively and forms.

Said a plurality of thermal column is vertical setting respectively, and the height dimension of said a plurality of thermal columns is not quite identical.

The height dimension of said a plurality of thermal columns outwards successively decreases along the radial direction of the end face of said radiating shell gradually.

Said a plurality of thermal column is evenly distributed.

Said cable-through hole is positioned at the middle part of the end face of said radiating shell.

The beneficial effect of the utility model is: 1, owing to be laid with a plurality of thermal columns on the top of the end face of radiating shell; And be provided with spacing between the thermal column; Make the utility model not only can utilize the contact area of thermal column and air to realize a large amount of heat radiations greatly; And column structure and the spacing between the thermal column that can utilize thermal column make thermal column and heat on every side thereof realize convection current and be diffused rapidly in the air, thereby improve the radiating effect of LED Down lamp greatly; 2, owing to also be provided with a plurality of heat radiation ribs, thereby can utilize the heat radiation rib to carry out auxiliary heat dissipation, further improve the radiating effect of LED Down lamp in the border, the outside of the sidewall of radiating shell.Therefore, the utility model can significantly improve the radiating effect of LED Down lamp, helps improving the light efficiency and the service life of LED lamp.

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain; But the radiator structure of a kind of LED Down lamp of the utility model is not limited to embodiment.

Description of drawings

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

Fig. 2 is the structural representation after the utility model connects the chassis of LED Down lamp.

The specific embodiment

Embodiment, referring to shown in Figure 1, the radiator structure of a kind of LED Down lamp of the utility model; Comprise a radiating shell 1; This radiating shell 1 is made up of the sidewall 12 of end face 11 and ring-type, and is provided with a cable-through hole 13 in the middle part of the end face, and the top of the end face 11 of this radiating shell evenly is laid with a plurality of thermal columns 2 that are vertical setting; Each thermal column 2 is a solid cylinder, and is provided with spacing between the adjacent thermal column 2; The height dimension of these a plurality of thermal columns 2 is not quite identical; Specifically be outwards to successively decrease gradually along the radial direction of the end face 11 of radiating shell; That is, be positioned at the height dimension maximum of the thermal column at radiating shell end face middle part, be positioned at the height dimension minimum of the thermal column of radiating shell end face outer rim; In addition, it is identical to be positioned at the height dimension of the thermal column on the same circumference.Make the height dimension of these a plurality of thermal columns uneven, can further increase the contact area of thermal column and air, thereby improve radiating effect.

As a kind of preferred, the border, the outside of the sidewall 12 of said radiating shell also evenly is laid with a plurality of heat radiation ribs 3, and each heat radiation rib 3 is extended to its bottom by the top of the sidewall 12 of said radiating shell respectively and forms.

The radiator structure of a kind of LED Down lamp of the utility model, as shown in Figure 2, can the border, bottom of the sidewall 12 of radiating shell and the chassis 4 of LED Down lamp be welded as a whole, perhaps the chassis 4 with radiating shell 1 and LED Down lamp is made of one the formula structure.The space that surrounds between the chassis 4 of this radiating shell 1 and LED Down lamp is used to install parts such as led circuit plate, led driver, and the power line of led driver can pass through the cable-through hole 13 at radiating shell end face middle part.

The radiator structure of a kind of LED Down lamp of the utility model; After on the end face 11 of its radiating shell a plurality of thermal columns 2 being set; Heat in the radiating shell 1 conducts to radiating shell 1 earlier, conducts to each thermal column 2 on the radiating shell end face again, passes through thermal column 2 at last fast to external diffusion.This is because thermal column 2 is big with the contact area of air; And be provided with the gap between each thermal column 2; Thereby the heat that conducts on the thermal column 2 can quickly diffuse in the air through thermal column itself; Heat on each thermal column 2 and the heat around each thermal column can utilize the spacing between the thermal column 2 to realize convection current simultaneously, thereby are easier to diffuse in the air.In addition, the part heat in the radiating shell 1 can also be through the heat radiation rib 3 on the sidewall 12 of radiating shell to external diffusion, with the radiating effect of further raising LED Down lamp.

The radiator structure of a kind of LED Down lamp of the utility model; Compared with prior art, it can utilize thermal column 2 big with the contact area of air, and the spacing between the thermal column 2 realizes that stream can fast; Thereby its radiating effect is remarkable, helps improving the light efficiency and the service life of LED Down lamp.

The foregoing description only is used for further specifying the radiator structure of a kind of LED Down lamp of the utility model; But the utility model is not limited to embodiment; Every technical spirit according to the utility model all falls in the protection domain of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. the radiator structure of a LED Down lamp; Comprise a radiating shell, this radiating shell is made up of the sidewall of end face and ring-type, and end face is provided with cable-through hole; It is characterized in that: the top of the end face of this radiating shell is laid with a plurality of thermal columns, and is provided with spacing between the adjacent thermal column.

2. the radiator structure of LED Down lamp according to claim 1; It is characterized in that: the border, the outside of the sidewall of said radiating shell evenly is laid with a plurality of heat radiation ribs, and each heat radiation rib is extended to its bottom by the top of the sidewall of said radiating shell respectively and forms.

3. the radiator structure of LED Down lamp according to claim 1 is characterized in that: said a plurality of thermal columns are vertical setting respectively, and the height dimension of said a plurality of thermal columns is not quite identical.

4. the radiator structure of LED Down lamp according to claim 3 is characterized in that: the height dimension of said a plurality of thermal columns outwards successively decreases along the radial direction of the end face of said radiating shell gradually.

5. the radiator structure of LED Down lamp according to claim 1 is characterized in that: said a plurality of thermal columns are evenly distributed.

6. the radiator structure of LED Down lamp according to claim 1 is characterized in that: said cable-through hole is positioned at the middle part of the end face of said radiating shell.