CN217402507U

CN217402507U - Heat dissipation structure of LED lamp

Info

Publication number: CN217402507U
Application number: CN202221515640.2U
Authority: CN
Inventors: 黄志勇
Original assignee: Ningbo Shengya Lighting Co ltd
Current assignee: Ningbo Shengya Lighting Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-09
Anticipated expiration: 2032-06-15

Abstract

The utility model discloses a LED lamp heat radiation structure, it includes rectangular shape and opening lamp body down, the lamp body opening part is equipped with the lamp lid, be equipped with a mounting panel in the lamp body, the mounting panel one side is equipped with the luminous module of LED along lamp body length direction, and the another side is equipped with a heat dissipation base plate, be equipped with a plurality of heat radiation fins along lamp body length direction equidistance distribution on the heat radiation base plate, leave the clearance between the adjacent heat radiation fins, both sides are equipped with a plurality of symmetric distributions and with the ventilation hole of clearance one-to-one around the lamp body. The utility model discloses it has the ventilation hole that is used for the air convection to open around its lamp body, forms the heat dissipation channel of fore-and-aft direction in the lamp body, promotes the radiating rate by a wide margin.

Description

LED lamp heat radiation structure

Technical Field

The utility model relates to the technical field of lamps and lanterns, specifically a LED lamp heat radiation structure.

Background

The light emitting diode, abbreviated as LED, is a commonly used light emitting device, emits light by energy released by electron and hole recombination, and has wide application in the field of illumination, and the solid semiconductor chip is used as a light emitting material, compared with the traditional lamp, the LED lamp is energy-saving, environment-friendly, and good in color rendering and response speed, but the LED can generate a large amount of heat when in use, if the heat energy can not be discharged in time, the light emitting effect of the LED lamp can be restricted, so that the normal service life of the LED lamp is influenced, and particularly for a high-power LED lamp, the phenomenon is more obvious, so that the heat radiating structure plays an important role in the LED lamp.

SUMMERY OF THE UTILITY MODEL

The utility model provides an above-mentioned technical problem, provide a LED lamp heat radiation structure, open around its lamp body has the ventilation hole that is used for the air convection, forms the heat dissipation channel of fore-and-aft direction in the lamp body, promotes the radiating rate by a wide margin.

The utility model adopts the technical proposal that: the utility model provides a LED lamp heat radiation structure, it includes rectangular shape and opening lamp body down, the lamp body opening part is equipped with the lamp lid, be equipped with a mounting panel in the lamp body, the mounting panel one side is equipped with the LED light emitting module along lamp body length direction, and the another side is equipped with a heat dissipation base plate, be equipped with a plurality of heat radiation fins along lamp body length direction equidistance distribution on the heat radiation base plate, leave the clearance between the adjacent heat radiation fins, both sides are equipped with a plurality of symmetric distributions and with the ventilation hole of clearance one-to-one around the lamp body.

After the structure more than adopting, the utility model has the advantages of it is following: radiating fins are distributed in the lamp shell along the length direction of the lamp shell so as to meet the requirement of radiating in the lamp shell; gaps are formed between every two adjacent radiating fins, the front side and the rear side of the lamp shell are provided with symmetrically distributed ventilation holes, and the ventilation holes are in one-to-one correspondence with the gaps, so that the gaps between the adjacent radiating fins in the lamp shell and the ventilation holes on the front side and the rear side form air convection channels, the radiating of the radiating fins is accelerated, and the temperature of the lamp shell is quickly reduced.

Preferably, the mounting plate is an aluminum substrate, and the aluminum substrate can reduce the thermal resistance to the minimum, has excellent heat conduction performance, and is beneficial to heat dissipation of the LED.

Preferably, scribble heat conduction silica gel between mounting panel and the heat dissipation base plate, heat conduction silica gel has good heat conductivity, reduces the contact thermal resistance that produces between mounting panel and the heat dissipation base plate.

Preferably, the LED light-emitting module comprises LED lamp beads and a circular lens matched with the LED lamp beads, the LED lamp bead array is arranged on the mounting plate, the circular lens corresponds to the LED lamp beads one to one and is fixed on the mounting plate, so that the LED lamp beads are directly fixed in contact with the mounting plate, and heat accumulation is prevented.

Preferably, the plurality of heat dissipation fins are distributed along the length direction of the lamp housing at intervals, and the heat dissipation space between the heat dissipation fins is increased on the premise of ensuring the number of the heat dissipation fins.

Preferably, the heat dissipation fins and the heat dissipation substrate are integrated, so that gaps between the heat dissipation fins and the heat dissipation substrate are prevented, and heat conduction between the heat dissipation fins and the heat dissipation substrate is ensured.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present invention.

Fig. 2 is a side view of the lamp housing structure of the present invention.

Fig. 3 is a perspective view of the heat dissipation fin structure of the present invention.

Fig. 4 is a side view of the heat sink structure of the present invention.

Wherein, 1, lamp shell; 2. a lamp cover; 3. mounting a plate; 4. a heat-dissipating substrate; 5. a heat dissipating fin; 6. a gap; 7. a vent hole; 8. LED lamp beads; 9. a circular lens.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

The embodiment provides a heat radiation structure of an LED lamp, as shown in fig. 1 and 2, it includes lamp body 1 with strip-shaped and opening facing down, lamp body 1 is provided with lamp cover 2, lamp cover 2 is fixed in the opening of lamp body 1, a mounting panel 3 is arranged in lamp body 1, mounting panel 3 is parallel to the setting of lamp cover 2, the both ends of mounting panel 3 are fixed on the inner wall of lamp body 1 through screws, so that mounting panel 3 can be formed and detachably connected to lamp body 1.

Mounting panel 3 is equipped with LED light-emitting module along 1 length direction of lamp body towards the one side of lamp lid 2, the another side is equipped with a heat dissipation base plate 4, LED light-emitting module include LED lamp pearl 8 and with LED lamp pearl 8 complex circular lens 9, LED lamp pearl 8 arrays are arranged on mounting panel 3 and directly fixed in on mounting panel 3, circular lens 9 and LED lamp pearl 8 one-to-one, it has the heavy groove to open on the mounting panel 3, be equipped with the hoop ladder on the heavy inslot perisporium, circular lens 9 is located the heavy groove and opening edge gomphosis in the hoop ladder, make circular lens 9 detachably be fixed in on mounting panel 3, LED lamp pearl 8 is located circular lens 9 below, the light source of every LED lamp pearl 8 is passed through after corresponding circular lens 9 refracts.

It should be noted that, the lamp cover 2 is provided with a plurality of through holes corresponding to the circular lenses 9 one by one, and after the circular lenses 9 are fixed on the mounting plate 3, the top of the circular lenses 9 passes through and tightly abuts against the through holes, so as to prevent dust from entering the lamp housing 1.

The mounting plate 3 is an aluminum substrate, the heat emitted by the LED lamp beads 8 is directly conducted to the aluminum substrate, the aluminum substrate is further conducted to the heat dissipation substrate 4, the heat dissipation substrate 4 is provided with a plurality of heat dissipation fins 5, as shown in FIG. 3, a single heat dissipation fin 5 is in a cuboid structure with the bottom length larger than the top length, the edges of the heat dissipation fins 5 are all subjected to fillet processing, the surface heat dissipation area of the heat dissipation fins 5 is increased to the maximum extent, and the fillets can reduce the obstruction of the surface of the heat dissipation fins 5 to the convection air, so that the heat dissipation efficiency is enhanced, the plurality of heat dissipation fins 5 are equidistantly and parallelly distributed on the heat dissipation substrate 4 along the length direction of the lamp housing 1, namely, gaps 6 are reserved between the adjacent heat dissipation fins 5, a plurality of ventilation holes 7 which are symmetrically distributed and correspond to the gaps 6 are formed on the front side surface and the back side surface of the lamp housing 1, two ventilation holes 7 and the corresponding gaps 6 form a complete air convection channel, finally, a plurality of air convection channels are uniformly distributed in the whole lamp housing 1 along the length direction.

In addition, the top of the heat dissipation fins 5 is not in contact with the bottom of the lamp housing 1, and the front and rear ends of the heat dissipation fins 5 are not in contact with the inner wall of the lamp housing 1, so that an air circulating space is formed in the whole lamp housing 1, and the heat dissipation speed in the lamp housing 1 is increased.

Scribble heat conduction silica gel between mounting panel 3 and the heat dissipation base plate 4, heat conduction silica gel piece can be fine fill the clearance 6 of the contact surface of mounting panel 3 and heat dissipation base plate 4, extrude the contact surface with the air, the air is hot bad conductor, can seriously hinder the transmission of heat between the contact surface, influences the heat dissipation of mounting panel 3 and heat dissipation base plate 4.

As shown in fig. 4, the plurality of heat dissipation fins 5 are distributed along the length direction of the lamp housing 1 at intervals, that is, two adjacent heat dissipation fins 5 are distributed in a high-low state, so that the top of the low heat dissipation fin 5 and the lamp housing 1 form a spatial channel to enhance the air flow in the housing.

The heat dissipation fins 5 extend from the surface of the heat dissipation substrate 4 and are integrated with the heat dissipation substrate 4, which is beneficial to the heat conduction between the heat dissipation fins 5 and the heat dissipation substrate 4.

The heat dissipation substrate 4 is provided with a mounting hole, a fastening screw is arranged in the mounting hole, and the heat dissipation substrate 4 is fixed on the mounting plate 3 through the fastening screw.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

The utility model provides a LED lamp heat radiation structure, its characterized in that, it includes rectangular shape and opening lamp body (1) down, lamp body (1) opening part is equipped with lamp lid (2), be equipped with a mounting panel (3) in lamp body (1), mounting panel (3) one side is equipped with LED light emitting module along lamp body (1) length direction, and the another side is equipped with a radiating basal plate (4), be equipped with a plurality of radiating fin (5) along lamp body (1) length direction equidistance distribution on radiating basal plate (4), leave clearance (6) between adjacent radiating fin (5), both sides are equipped with ventilation hole (7) of a plurality of symmetric distributions and with clearance (6) one-to-one around lamp body (1).
2. The heat dissipation structure of an LED lamp of claim 1, wherein: the mounting plate (3) is an aluminum substrate.
3. The heat dissipation structure of an LED lamp of claim 2, wherein: heat conduction silica gel is coated between the mounting plate (3) and the heat dissipation substrate (4).
4. The heat dissipation structure of an LED lamp of claim 1, wherein: the LED light-emitting module comprises LED lamp beads (8) and a round lens (9) matched with the LED lamp beads (8), the LED lamp beads (8) are arrayed on the mounting plate (3), and the round lens (9) corresponds to the LED lamp beads (8) one by one and is fixed on the mounting plate (3).
5. The heat dissipation structure of an LED lamp of claim 1, wherein: the plurality of radiating fins (5) are distributed at intervals along the length direction of the lamp shell (1).
6. The heat dissipation structure of an LED lamp of claim 5, wherein: the radiating fins (5) and the radiating substrate (4) are integrated.