CN201706447U

CN201706447U - Radiator of LED lamp set

Info

Publication number: CN201706447U
Application number: CN2010201952998U
Authority: CN
Inventors: 刘昌贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-13
Filing date: 2010-05-13
Publication date: 2011-01-12
Anticipated expiration: 2020-05-13

Abstract

The embodiment of the utility model discloses a radiator of an LED lamp set, which comprises a metal cylinder and a plurality of metal radiating fins arranged on the outer wall of the metal cylinder. The edges of the metal radiating fins, which are not contacted with the metal cylinder, are coated with insulation sheaths. The radiator of the utility model can avoid electric shock when a hand is contacted with the surface of the radiator in the process of disassembling or installing an LED combination light source.

Description

Radiator of LED lamp bank

Technical Field

The utility model relates to an electron field especially relates to a radiator of LED banks.

Background

The traditional LED combined light source generally includes a lampshade, a light source, a heat sink, a power supply, a lamp cap and other components, the heat sink is usually made of aluminum section or is made of die-cast aluminum, the light source and the power supply are both mounted on a Printed Circuit Board (PCB) on the heat sink, when a user detaches or mounts the LED combined light source, the user will touch the surface of the heat sink, and because the heat sink is made of aluminum, there is a risk of electric shock.

Content of reality

The technical problem to be solved by the present embodiment is to provide a heat sink for an LED lamp set. The risk of electric shock can be avoided when the surface of the radiator is contacted by hands when the LED combined light source is disassembled or installed.

In order to solve the above technical problem, the present embodiment provides a heat sink for an LED lamp set, including: the metal heat radiating fin comprises a metal cylinder and a plurality of metal heat radiating fins arranged on the outer wall of the metal cylinder, wherein an insulating outer skin is coated on the edge of the metal heat radiating fin, which is not in contact with the metal cylinder.

Preferably, a longitudinal groove is formed in the metal cylinder, and the metal radiating fin is clamped in the longitudinal groove.

Further, the contact edge of the metal cooling fin and the metal cylinder is parallel to the central axis of the metal cylinder.

Further, the metal heat sink is a flat plate.

Furthermore, one side of the assembly of the metal radiating fin and the metal cylinder, which is used for placing the PCB, is a plane or a paraboloid.

Or,

preferably, the contact edge of the metal heat sink and the metal cylinder is perpendicular to the central axis of the metal cylinder.

Further, the metal radiating fins are disc bodies with notches in the centers.

Or, the metal radiating fin is a ring body.

Furthermore, the metal radiating fins are sleeved on the metal cylinder body, and a certain distance is arranged between every two metal radiating fins.

Furthermore, an isolation ring is arranged between every two metal radiating fins to enable the two metal radiating fins to be spaced at a certain distance.

In addition, preferably, the metal heat sink and the metal cylinder are integrally formed.

This LED banks's radiator newly provided with in fact, the edge cladding that the metal fin is not contacted with the metal barrel has insulating crust, when having avoided dismantling or installation LED combination light source, when the staff contact radiator surface, can have the defect of the risk of electrocution. In addition, when the metal radiating fin is a flat plate, one side of the assembly of the metal radiating fin and the metal cylinder body, which is used for placing the PCB, can be set to be in a paraboloid shape, so that the paraboloid can contain more LED light sources on one hand, and the radiating area can be increased on the other hand. In addition, when the metal radiating fin is a disc body, the disc-shaped PCB can be placed on the metal radiating fin, so that the paraboloid can contain more LED light sources on one hand, and the radiating area can be increased on the other hand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a perspective view of a first embodiment of a heat sink of the present invention;

figure 2 is a front view of a first embodiment of the heat sink of the present invention;

fig. 3 is a top view of a first embodiment of the heat sink of the present invention;

fig. 4 is a perspective view of a metal cylinder in a first embodiment of the heat sink of the present invention;

fig. 5 is a plan view of a metal cylinder in a first embodiment of the heat sink of the present invention;

fig. 6 is a structural view of a metal fin in a first embodiment of the heat sink of the present invention;

fig. 7 is a structural view of a metal heat sink covered with an insulating sheath according to a first embodiment of the present invention;

fig. 8 is a perspective view of a second embodiment of the heat sink of the present invention;

figure 9 is a front view of a second embodiment of the heat sink of the present invention;

figure 10 is a top view of a second embodiment of the heat sink of the present invention;

fig. 11 is a perspective view of an assembly of a metal tube and a metal fin according to a second embodiment of the heat sink of the present invention;

fig. 12 is a plan view of a combination of a metal tube and metal fins according to a second embodiment of the heat sink of the present invention;

fig. 13 is another perspective view of an assembly of a metal cylinder and metal fins according to a second embodiment of the heat sink of the present invention;

fig. 14 is a cross-sectional view of a third embodiment of the heat sink of the present invention;

fig. 15 is a perspective view of a metal fin of a third embodiment of the heat sink of the present invention;

fig. 16 is a front view of a metal fin of a third embodiment of the heat sink of the present invention;

fig. 17 is a cross-sectional view of a metal fin of a third embodiment of the heat sink of the present invention taken along plane D-D of fig. 16;

figure 18 is a burst view of a third embodiment of the heat sink of the present invention;

figure 19 is a cross-sectional view of a fourth embodiment of the heat sink of the present invention;

fig. 20 is a perspective view of a metal fin of a fourth embodiment of the heat sink of the present invention;

fig. 21 is a front view of a metal fin of a fourth embodiment of the heat sink of the present invention;

fig. 22 is a cross-sectional view of a metal fin of a fourth embodiment of the heat sink of the present invention taken along plane D-D of fig. 21;

fig. 23 is a burst view of a fourth embodiment of the heat sink of the present invention.

Detailed Description

The technical solution in the present embodiment will be clearly and completely described below with reference to the accompanying drawings in the present embodiment.

The utility model provides a radiator of LED banks, it includes metal barrel and sets up a plurality of metal fin on the metal barrel outer wall metal fin not with the edge cladding of metal barrel contact has insulating crust, in specifically realizing, the utility model discloses a metal fin of radiator can with metal barrel integrated into one piece, also can independently process with metal barrel, then adorn metal fin on metal barrel's outer wall, and metal fin's shape is also diversified, for example for rectangular plate, opposite sex plate, disk body or ring body and so on. The cross section of the metal cylinder body can be circular, square or polygonal.

The present invention will be described in detail with reference to specific examples.

Fig. 1 to 7 are structural views relating to a first embodiment of a heat sink of the present invention. As shown in fig. 1-3, the heat sink of the LED lamp set of the present embodiment has a cup-shaped structure, which includes a metal cylinder 3, a plurality of metal heat dissipation fins 4 disposed on an outer wall of the metal cylinder 3, and an insulating outer skin 5 covering edges of the plurality of metal heat dissipation fins 4 not in contact with the metal cylinder 3. In this embodiment, the metal cylinder 3 and the metal heat sink 4 are independently provided and then combined to form the cup-shaped structure shown in fig. 1. As shown in fig. 4 and 5, the metal cylinder 3 of the present embodiment is provided with a longitudinal groove 30, in a specific implementation, the metal heat sink 4 is clamped in the longitudinal groove, and when the plurality of metal heat sinks 4 are all clamped in the plurality of grooves of the metal cylinder 3, the structure with the radiator as shown in fig. 2 can be formed. As shown in fig. 1, when the plurality of metal heat sinks 4 are clamped into the plurality of grooves of the metal cylinder 3, the contact edge of the metal heat sink 4 and the metal cylinder 3 is parallel to the central axis of the metal cylinder. As shown in fig. 6 and 7, the metal heat sink 4 of the present embodiment is a fan-shaped sheet, the inner edge contacting the metal cylinder 3 is linear, the upper edge and the outer edge are both arc-shaped, and the insulating sheath 5 covers the outer edge of the fan-shaped sheet. As further shown in fig. 1, one side of the assembly of the metal heat sink 4 and the metal cylinder 3 is a paraboloid, and the PCB board on which the LED lamp set is placed on the paraboloid. In a specific implementation, the upper edge of the metal heat sink 4 may also be linear, and one side of the assembly formed by the metal heat sink 4 and the metal cylinder 3 and used for placing the PCB board is also a plane.

The edge that the metal fin is not contacted with the metal barrel is wrapped with the insulating crust, so that the defect that electric shock risks exist when a human hand contacts the surface of the radiator when the LED combined light source is detached or installed is avoided. In addition, when the metal radiating fin is a flat plate, one side of the assembly of the metal radiating fin and the metal cylinder body, which is used for placing the PCB, can be set to be in a paraboloid shape, so that the paraboloid can contain more LED light sources on one hand, and the radiating area can be increased on the other hand.

Fig. 8 to 13 are structural views relating to a second embodiment of the heat sink of the present invention. As shown in fig. 8-10, the heat sink of the LED lamp set of the present embodiment has a cup-shaped structure, which includes a metal cylinder 3, a plurality of metal heat dissipation fins 4 disposed on the outer wall of the metal cylinder 3, and an insulating outer skin 5 covering the edges of the plurality of metal heat dissipation fins 4 not in contact with the metal cylinder 3. As shown in fig. 11 and 12, in the present embodiment, the metal cylinder 3 and the metal heat sink 4 are formed by integral molding. As in the first embodiment, the metal heat sink 4 of this embodiment is a fan-shaped sheet, the inner edge contacting the metal cylinder 3 is linear, and the upper edge and the outer edge are both arc-shaped, and further as shown in fig. 8 or fig. 11, one side of the assembly formed by the metal heat sink 4 and the metal cylinder 3 is a paraboloid, and the PCB board on which the LED lamp set is placed on the paraboloid. Further, as shown in fig. 13, the metal heat sink 4 may also be a rectangular flat plate, so that the side of the assembly of the metal heat sink 4 and the metal cylinder 3 for placing the PCB is a plane. In a specific implementation, the structure shown in fig. 13 can be changed to the structure shown in fig. 11 after being processed, and the difference between the two structures is that one side of the combined body formed by the metal heat sink 4 and the metal cylinder 3, on which the PCB is placed, is a plane, and the other side is a paraboloid, when the combined body is a plane, a planar PCB can be placed thereon, and when the combined body is a paraboloid, an arc-shaped PCB can be placed thereon.

Fig. 14 to 18 are structural views relating to a heat sink according to a third embodiment of the present invention. As shown in fig. 14, the heat sink of the LED lamp set of the present embodiment includes a metal cylinder 3, a plurality of metal heat dissipation fins 7 disposed on the outer wall of the metal cylinder 3, and an insulating sheath 5 covering the edges of the metal heat dissipation fins 7 not in contact with the metal cylinder 3. In this embodiment, the metal cylinder 3 and the metal heat sink 7 are independently provided and then combined. As shown in fig. 15 to 17, in this embodiment, the metal heat sink 7 is a disk with a notch at the center, and the middle notch is a circle 70, and the circle 70 allows the disk to be sleeved on the outer wall of the metal cylinder 3. The body between the bottom 71 and the top 72 of the body forms a certain paraboloid. Further, as shown in fig. 18, after the plurality of metal heat dissipation fins 7 are sequentially sleeved on the metal cylinder 3, the structure shown in fig. 14 can be formed, and in a specific implementation, after the metal heat dissipation fins 7 are sleeved on the metal cylinder 3, the contact edges of the metal heat dissipation fins 7 and the metal cylinder 3 are perpendicular to the central axis of the metal cylinder 3. As shown in fig. 14, the metal fins 7 fitted around the metal cylinder 3 are spaced apart from each other by a predetermined distance, for example, a predetermined distance is maintained between every two metal fins 7 by the spacer 9. As can be seen from fig. 14, the size of the metal heat sink 7 fitted around the metal cylinder 3 and the parabolic curvature of the plate may be different. Wherein, the metal heat sink 7 on the top of the metal cylinder 3 can be used for placing the arc-shaped PCB.

The edge that the metal fin is not contacted with the metal barrel is wrapped with the insulating crust, so that the defect that electric shock risks exist when a human hand contacts the surface of the radiator when the LED combined light source is detached or installed is avoided. When the metal radiating fin is a disc body, the disc-shaped PCB can be placed on the metal radiating fin, so that the paraboloid can contain more LED light sources on one hand and can increase the radiating area on the other hand.

Fig. 19 to 23 are structural views of a heat sink according to a fourth embodiment of the present invention. As shown in fig. 19, the heat sink of the LED lamp set of the present embodiment includes a metal cylinder 3, a plurality of metal heat dissipation fins 8 disposed on the outer wall of the metal cylinder 3, and an insulating sheath 5 covering the edges of the metal heat dissipation fins 8 not in contact with the metal cylinder 3. In this embodiment, the metal cylinder 3 and the metal heat sink 8 are separately provided and then combined. As shown in fig. 20 to 22, in the present embodiment, the metal heat sink 8 is a ring body, the middle of which is a circle 80, the circle 80 enables the ring body to be sleeved on the outer wall of the metal cylinder 3, and as shown in fig. 21, the insulating outer skin 5 covers the outer ring edge of the ring body. As shown in FIG. 22, the upper and

lower surfaces

81, 82 of the ring body are both planar. Further, as shown in fig. 23, after the plurality of metal fins 8 are sequentially fitted to the metal cylinder 3, the structure shown in fig. 19 can be formed. As shown in fig. 14 or 23, the metal fins 8 fitted around the metal cylinder 3 are spaced apart from each other by a predetermined distance, and for example, a predetermined distance is maintained between every two metal fins 8 by the spacer 9. As can be seen from fig. 19 and 23, the size and thickness of the metal heat sink 8 fitted around the metal cylinder 3 may be different. Wherein, the metal heat sink 8 on the top of the metal cylinder 3 can be used for placing a planar PCB.

The edge that the metal fin is not contacted with the metal barrel is wrapped with the insulating crust, so that the defect that electric shock risks exist when a human hand contacts the surface of the radiator when the LED combined light source is detached or installed is avoided.

The above disclosure is only for the purpose of illustrating the presently preferred embodiments and is not to be construed as limiting the scope of the presently preferred embodiments, since the invention is intended to be covered by the appended claims in all equivalent variations.

Claims

1. A heat sink for an LED lamp assembly, comprising: the metal heat radiating fin comprises a metal cylinder and a plurality of metal heat radiating fins arranged on the outer wall of the metal cylinder, wherein an insulating outer skin is coated on the edge of the metal heat radiating fin, which is not in contact with the metal cylinder.

2. The heat sink as claimed in claim 1, wherein the metal cylinder is provided with a longitudinal groove, and the metal heat sink is engaged with the longitudinal groove.

3. The heat sink of claim 1, wherein the contact edge of the metal fin with the metal cylinder is parallel to the central axis of the metal cylinder.

4. A heat sink according to claim 2 or 3, wherein said metal fin is a flat plate.

5. The heat sink according to any one of claims 1-3, wherein the side of the combination of the metal heat sink and the metal cylinder for placing the PCB board is a plane or a paraboloid.

6. The heat sink of claim 1, wherein the contact edge of the metal fin with the metal cylinder is perpendicular to the central axis of the metal cylinder.

7. The heat sink of claim 6, wherein the metal fins are disks with a notch in the center.

8. The heat sink of claim 6, wherein the metal fin is a ring.

9. The heat sink as claimed in claim 7 or 8, wherein the metal fins are sleeved on the metal cylinder, and a certain distance is provided between every two metal fins.

10. The heat sink as claimed in claim 9, wherein a spacer is disposed between each two of the metal fins to space the two metal fins apart from each other.

11. The heat sink according to any one of claims 1, 3, 6-8, wherein the metal fins are integrally formed with the metal cylinder.