CN210831898U

CN210831898U - LED heat dissipation device and lamp

Info

Publication number: CN210831898U
Application number: CN201922066427.2U
Authority: CN
Inventors: 于冬京; 王国平; 卫庆军
Original assignee: Opple Road Lighting Co ltd; Opple Lighting Co Ltd
Current assignee: Opple Road Lighting Co ltd; Opple Lighting Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-06-23
Anticipated expiration: 2029-11-26
Also published as: WO2021104121A1

Abstract

The application provides an LED heat dissipation device and a lamp, which comprise a heat collection side and a heat dissipation side, wherein the heat collection side is attached to an LED light source, the heat dissipation side deviates from the heat collection side, the direction from the heat collection side to the heat dissipation side is a first direction, the heat dissipation side is provided with a heat dissipation groove, the heat dissipation groove is provided with a notch and a groove bottom, and the notch is opposite to the groove bottom; the groove bottom is provided with a convex part which is convex along the first direction, the convex part penetrates through the groove bottom, and the groove bottom smoothly extends from the convex part to the direction opposite to the first direction. This application adopts the tank bottom of the radiating groove on LED heat abstractor to set up the bulge to make the tank bottom reduce gradually from the bulge, form a level and smooth drainage channel, can discharge ponding through structures such as wash port or lateral wall, can clear away the filth of tank bottom simultaneously, realized the technological effect of automatic drainage blowdown.

Description

LED heat dissipation device and lamp

Technical Field

The utility model relates to a lighting apparatus technical field especially relates to a LED heat abstractor and lamps and lanterns.

Background

Due to the advantages of long service life, environmental protection, cleanness, low power consumption, controllable light emitting color and the like, the LED light source is gradually popularized to public lighting settings such as street lamps and the like which need to work for a long time, and the LED light source and the LED heat dissipation device are often matched for use so as to facilitate heat dissipation of the LED light source.

At present, because the light-emitting projection direction of the LED street lamp is downward, water and dirt are easy to accumulate in the upward LED heat dissipation device, so that the normal work is influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an LED heat dissipation device to solve the problems.

The embodiment of the application adopts the following technical scheme:

the embodiment of the application provides an LED heat dissipation device, which comprises a heat collection side and a heat dissipation side, wherein the heat collection side is used for being attached to an LED light source, the heat dissipation side deviates from the heat collection side, the direction from the heat collection side is a first direction, the heat dissipation side is provided with a heat dissipation groove, the heat dissipation groove is provided with a notch and a groove bottom, and the notch is opposite to the groove bottom; the groove bottom is provided with a protruding part protruding along the first direction, the protruding part penetrates through the groove bottom, and the groove bottom smoothly extends from the protruding part to the direction opposite to the first direction.

Preferably, the heat sink further includes opposing side walls, a pair of the side walls and the bottom of the groove form a pair of opposing side ports, and the protrusion penetrates the bottom of the groove and connects the pair of the side walls.

Preferably, the groove bottom is provided with a drain hole penetrating through the heat radiating side and the heat collecting side, and the drain hole is formed at the intersection of the side wall and the groove bottom.

Preferably, the heat sink further comprises heat dissipation fins, and the heat dissipation fins protrude from the bottom of the heat sink and do not exceed the notches in the first direction

Preferably, still including connecting ear, the radiating side still possesses radiating side outer fringe, connect ear certainly radiating side outer fringe is to keeping away from the direction of notch extends, connect ear possess be used for with external connection's connecting piece, the notch is in the first direction is not more than connect ear.

Preferably, the number of the connecting lugs is two, and the two connecting lugs are symmetrically arranged relative to the heat dissipation groove.

Preferably, connect ear possesses towards the direction be the pressure-bearing face of first direction and deviate from the enhancement face of pressure-bearing face, connect ear possess certainly strengthen the bellied strengthening rib of face.

Preferably, the heat collecting side is connected with the heat radiating side through the heat radiating side, the heat radiating side is adjacent to the connecting lug, and the reinforcing ribs extend from the heat radiating side and penetrate through the reinforcing surface.

Preferably, the heat sink fin structure extends from the groove bottom to a position flush with the groove opening along the first direction.

Preferably, the heat dissipation fin structures are arranged in an array.

Preferably, the heat dissipation fin structure includes a first fin group and a second fin group, the bottom of the groove has a bottom center, and the first fin group and the second fin group are symmetrically arranged with respect to the bottom center.

Preferably, the cross sections of the first fin group and the second fin group in the direction perpendicular to the first direction are both in a V shape, and the top end of the V shape points to the center of the groove bottom.

Preferably, the protrusion is connected to a tip of the V-shape.

Preferably, the solar heat collector further comprises a through hole waterproof structure, a power supply through hole used for penetrating through the LED power line is formed in the heat collecting side, the power supply through hole penetrates through the heat radiating side and the heat collecting side, and the through hole waterproof structure is arranged in the power supply through hole and fills the interval between the LED power line and the power supply through hole.

The embodiment of the application still provides a lamps and lanterns, including lamp body, LED light source and as above LED heat abstractor, the lamp body possesses the installation cavity that link up, the installation cavity possesses first opening and the second opening that deviates from each other, LED heat abstractor with the thermal-arrest side orientation first opening the thermal-arrest side orientation second open-ended gesture is fixed in the installation cavity, the LED light source is fixed in the thermal-arrest side.

This application adopts the tank bottom of the radiating groove on LED heat abstractor to set up the bulge to make the tank bottom reduce gradually from the bulge, form a level and smooth drainage channel, can discharge ponding through structures such as wash port or lateral wall, can clear away the filth of tank bottom simultaneously, realized the technological effect of automatic drainage blowdown.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of a heat dissipation side of an LED heat dissipation device disclosed in an embodiment of the present application;

FIG. 2 is a schematic diagram of a heat collecting side of an LED heat dissipation device disclosed in an embodiment of the present application;

fig. 3 is a schematic cross-sectional view of an LED heat dissipation device disclosed in an embodiment of the present application;

FIG. 4 is a schematic view of a first opening side of a lamp according to an embodiment of the disclosure;

FIG. 5 is a side view of a lamp according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a side of a second opening of a lamp according to an embodiment of the present disclosure.

Description of reference numerals:

1-radiating side, 2-heat collecting side, 3-connecting lug part, 4-radiating device side, 5-through hole waterproof structure, 6-lamp, 10-radiating groove, 12-radiating side outer edge, 20-power supply through hole, 30-connecting piece, 32-pressure bearing surface, 34-reinforcing surface, 60-lamp body, 62-installation cavity, 64-first opening, 66-second opening, 68-LED light source, 100-notch, 102-groove bottom, 104-radiating fin structure, 106-side wall, 108-side port, 200-opening, 340-reinforcing rib, 1040-first fin group, 1042-second fin group, 1020-groove bottom center, 1022-first radiating surface, 1024-second radiating surface, 1026-projecting part, fin body, 1028-drainage hole, a-first direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

The embodiment of the application provides a LED heat abstractor, as shown in fig. 1, LED heat abstractor possesses heat dissipation side 1, thermal-arrest side 2 and connection ear 3, wherein thermal-arrest side 2 is used for laminating the LED light source and with the heat transfer that the LED light source sent to with the thermal-arrest side 1 relative of thermal-arrest side 2 in order to improve the radiating efficiency, for the convenience of describing the position relation between each part, the direction that points to heat dissipation side 1 with thermal-arrest side 2 is first direction a.

The embodiment of the application LED heat abstractor, usual service environment is that thermal-arrest side 2 faces down, and radiating side 1 faces up, installs on frame or other carriers through connecting ear 3, is applicable to the service environment that light-emitting direction faces down promptly, of course also can install the light-emitting direction for facing other directions as required.

As shown in fig. 1 and 3, the groove bottom 102 is provided with a convex portion 1026 protruding along the first direction a, the convex portion 1026 may be connected to the top end of the V-shape as shown in fig. 1, or may be provided as an edge of the groove bottom 102, as shown in fig. 3, the groove bottom 102 extends gradually and smoothly from the convex portion 1026 to the opposite direction of the first direction a, so when there is accumulated water in the groove, the accumulated water can flow out from the groove along the drainage hole 1028 or the side port 108 due to the presence of the convex portion 1026, and at the same time, the groove bottom 102 is equivalent to a rib penetrating through the groove bottom due to the presence of the convex portion 1026, and the resistance to the torsional force is increased.

As shown in fig. 1, the heat dissipating side 1 includes a heat dissipating slot 10, the heat dissipating slot 10 described herein is, as shown in fig. 1, a groove formed by recessing the heat dissipating side 1 in a direction opposite to the first direction a, the heat dissipating slot 10 includes a notch 100, a slot bottom 102 and a heat dissipating fin structure 104, the notch 100 is opposite to the slot bottom 102, the notch 100 may be the same as the slot bottom 102 as shown in fig. 1 or may be different from the slot bottom 102, the heat dissipating fin structure 104 protrudes from the slot bottom 102, the heat dissipating fin structure 104 may be arranged in an array as shown in fig. 1 or may be arranged in a random manner without a certain arrangement order, as long as the notch 100 is not exceeded in the first direction a, so that the notch 100 may provide a certain blocking effect for the heat dissipating fin structure 104.

In order to further increase the degree of protection of the heat sink fin structure 104, the heat sink side 1 further includes a heat sink side outer edge 12, the connecting lugs 3 extend from the heat sink side outer edge 12 to a direction away from the slot 100, and the connecting lugs 3 may be two and symmetrically arranged with respect to the heat sink as shown in fig. 1, or may be arranged in a plurality of slots 100 and uniformly arranged along the circumferential direction thereof. The connecting ear 3 is provided with a connecting piece 30 for connecting with the outside, the connecting piece 30 can be a connecting hole as shown in fig. 1, or can be other structures such as a hook, the notch 100 does not exceed the connecting ear 3 in the first direction a, the connecting ear 3 can exceed the notch 100, or the two can be flush with each other as shown in fig. 1. Through the arrangement, the probability that the radiating fin structure 104 is directly pressed to be damaged can be effectively reduced, so that the radiating efficiency is ensured.

In order to enhance the mechanical strength of the connecting ear 3, in the present embodiment, the connecting ear 3 has a pressure-bearing surface 32 facing the first direction a and a reinforcing surface 34 facing away from the pressure-bearing surface 32, as shown in fig. 1, the pressure-bearing surface 32 is flush with the heat-dissipating side 1, or the pressure-bearing surface 32 may be arranged to exceed the heat-dissipating side 1 in the first direction a, and the reinforcing surface 34 is provided with a protruding reinforcing rib 340, so that the mechanical strength of the connecting ear 3 is enhanced by using the reinforcing rib 340. In this embodiment, as shown in fig. 1, the heat sink side surface 4 is further provided, the heat collecting side 2 is connected to the heat dissipating side 1 through the heat dissipating side surface 4, the connecting ear 3 is adjacent to the heat dissipating side surface 4, and the reinforcing rib 340 may extend from the heat dissipating side surface 4 and penetrate through the reinforcing surface 34 as shown in fig. 1, so that one end of the reinforcing rib 340 may be fixed, and the reinforcing effect is better.

To increase the heat dissipation effect, in the present embodiment, the heat sink fin structures 104 extend from the groove bottom 102 along the first direction a and extend to the groove bottom 102, so that relatively smooth air flow channels can be formed between the heat sink fin structures 104, and the surface area of the heat sink fin structures 104 can be increased to the maximum.

In order to increase the mechanical strength of the heat sink fin structure 104 itself, in the embodiment, the heat sink fin structure 104 includes a first fin group 1040 and a second fin group 1042, the slot bottom 102 has a slot bottom center 1020, and the first fin group 1040 and the second fin group 1042 are symmetrically arranged with respect to the slot bottom center 1020, as shown in fig. 1, a plurality of first fin groups 1040 and second fin groups 1042 which are symmetrically arranged may be disposed in the heat sink 10, so that a more uniform stressed structure may be formed, and the mechanical strength is increased. To further increase the mechanical strength of the heat sink fin structure 104, the cross-sectional shapes of the first fin group 1040 and the second fin group 1042 in the direction perpendicular to the first direction a may be arranged as a V-shape as shown in fig. 1, and the top end of the V-shape is directed to the center 1020 of the bottom of the groove, so that a rib is formed at the top end of the V-shape to increase the mechanical strength.

In the using process of the LED heat dissipation device, the LED heat dissipation device may not only be subjected to external pressure, but also may be subjected to a torsional force, in order to enhance the resistance of the LED heat dissipation device to the torsional force in the embodiment of the present application, as shown in fig. 1, the groove bottom 102 includes a first heat dissipation surface 1022 and a second heat dissipation surface 1024, the first heat dissipation surface 1022 and the second heat dissipation surface 1024 are adjacent to each other and form a protruding portion 1026 protruding from the groove bottom 102 along the first direction a, and the protruding portion 1026 is connected to the top end of the V-shape, so that the resistance to the torsional force is further increased.

As shown in fig. 1, in order to increase the heat dissipation efficiency, the heat dissipation groove 10 according to the embodiment of the present invention is a U-shaped groove, the U-shaped groove has opposite side walls 106, the opposite side walls 106 and the groove bottom 102 form a pair of opposite side ports 108, and the heat dissipation fin structure 104 penetrates through the two side ports 108, so that air can flow in from one side port 108, pass through the heat dissipation fin structure, and flow out from the other side port 108, thereby improving the heat dissipation efficiency.

In order to improve the drainage performance, the groove bottom 102 is provided with a drainage hole 1028 penetrating through the heat dissipation side 1 and the heat collection side 2, so that when the heat dissipation side 1 is arranged upwards, accumulated water such as rainwater can be effectively drained. Meanwhile, the heat collecting side 2 is provided with a power supply through hole 20 penetrating through the heat radiating side 1 and the heat collecting side 2, the power supply through hole 20 is used for penetrating an LED power line supplying power to an LED, a through hole waterproof structure 5 is arranged in the power supply through hole 20, the through hole waterproof structure 5 can be made of rubber or foam rubber, and can fill the space between the LED power line and the power supply through hole 20 and prevent moisture from penetrating through the power supply through hole 20. To ensure the overall mechanical strength of the LED heat sink, the opening 200 of the power supply via 20 on the heat dissipating side 1 is located at the center 1020 of the bottom of the groove, and the power supply via 20 extends along the first direction a.

The embodiment of the present application further provides a lamp 6 using the above LED heat dissipation device, as shown in fig. 4 and 5, the lamp 6 includes a lamp body 60, the lamp body 60 shown in fig. 4, 5 and 6 is designed to be suitable for modeling of a street lamp, or for modeling of other applications, a through installation cavity 62 is provided on the lamp body 60, as shown in fig. 5, the installation cavity 62 includes a first opening 64 and a second opening 66 which are separated from each other, so as to facilitate installation of an internal structure and light emission.

As shown in FIG. 4, when the LED street lamp is designed as a street lamp, the upward side of the lamp 6 is shown in FIG. 4, the LED heat sinks are arranged in the mounting cavity 62 side by side, the heat dissipation side 1 faces upward, so that the heat collection side for fixing the LED light source 68 faces downward, and according to the structure of the LED heat sinks, the upward heat dissipation side 1 can effectively discharge accumulated water and dirt therein.

Fig. 6 shows the side of the second opening 66 of the lamp 6, and a plurality of LED light sources 68 are fixed on the heat collecting side 2, and can emit light downwards when set as a street lamp.

In the embodiments of the present application, the difference between the embodiments is described in detail, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The LED heat dissipation device is characterized by comprising a heat collection side and a heat dissipation side, wherein the heat collection side is used for being attached to an LED light source, the heat dissipation side deviates from the heat collection side, the direction from the heat collection side to the heat dissipation side is a first direction, the heat dissipation side is provided with a heat dissipation groove, the heat dissipation groove is provided with a notch and a groove bottom, and the notch is opposite to the groove bottom;

the groove bottom is provided with a protruding part protruding along the first direction, the protruding part penetrates through the groove bottom, and the groove bottom smoothly extends from the protruding part to the direction opposite to the first direction.

2. The LED heat sink of claim 1 wherein the heat sink further comprises opposing side walls, a pair of the side walls forming a pair of opposing side ports with the base of the slot, the protrusion extending through the base of the slot and connecting the pair of side walls.

3. The LED heat sink of claim 2, wherein the bottom of the groove has a drainage hole extending through the heat dissipation side and the heat collection side, and the drainage hole is formed at the intersection of the side wall and the bottom of the groove.

4. The LED heat sink of claim 1 wherein the heat sink further comprises a heat fin structure protruding from the bottom of the slot, the heat fin structure not exceeding the notch in the first direction.

5. The LED heat sink according to claim 4, further comprising a connecting ear, wherein the heat sink further has a heat sink outer edge, the connecting ear extends from the heat sink outer edge in a direction away from the notch, the connecting ear has a connecting member for connecting to an external device, and the notch does not exceed the connecting ear in the first direction.

6. The LED heat sink according to claim 5, wherein the connecting ears are provided in two, and the two connecting ears are symmetrically provided with respect to the heat sink.

7. The LED heat sink of claim 6, wherein the attachment ears have a pressure bearing surface facing in the first direction and a reinforcing surface facing away from the pressure bearing surface, the attachment ears having reinforcing ribs projecting from the reinforcing surface.

8. The LED heat sink of claim 7, further comprising a heat sink side, wherein the heat collection side is connected to the heat sink side by the heat sink side, wherein the heat sink side is adjacent to the engaging tab, and wherein the stiffener extends from the heat sink side and through the stiffener surface.

9. The LED heat sink of claim 4 wherein the heat fin structure extends from the bottom of the slot in the first direction to a position flush with the notch.

10. The LED heat sink of claim 4, wherein the array of heat sink fin structures is arranged.

11. The LED heat sink of claim 10 wherein the heat sink fin structure comprises a first set of fins and a second set of fins, the bottom of the tank having a bottom center, the first set of fins and the second set of fins being symmetrically arranged with respect to the bottom center of the tank.

12. The LED heat sink of claim 11, wherein the first set of fins and the second set of fins each have a V-shape in cross section perpendicular to the first direction, the top of the V-shape pointing toward the center of the bottom of the slot.

13. The LED heat sink of claim 12, wherein the protrusion connects the apex of the V-shape.

14. The LED heat sink according to any one of claims 1 to 13, further comprising a through-hole waterproof structure, wherein the heat collecting side is provided with a power through-hole for passing through an LED power line, the power through-hole penetrates through the heat dissipating side and the heat collecting side, and the through-hole waterproof structure is disposed in the power through-hole and fills a space between the LED power line and the power through-hole.

15. A lamp, comprising a lamp body, an LED light source and the LED heat sink of any one of claims 1 to 13, wherein the lamp body has a through-hole mounting cavity, the mounting cavity has a first opening and a second opening that face away from each other, the LED heat sink is fixed in the mounting cavity in a posture that the heat collecting side faces the first opening and the heat dissipating side faces the second opening, and the LED light source is fixed in the heat collecting side.