CN217030867U - Lamp heat radiation structure - Google Patents

Abstract

The utility model relates to the technical field of illumination, and provides a lamp heat dissipation structure, which comprises: the heat dissipation module comprises a light emitting body, a heat conduction module and a heat dissipation body; the heat conduction module comprises a heat source conductor and a heat source contact plate which is mutually embedded with the heat source conductor and used for fixing the heat source conductor, and the luminous body is attached to the heat source contact plate; the heat dissipation body is including setting up the heat dissipation chamber in inside and setting up the heat dissipation rib at the heat dissipation body lateral wall, thereby the heat conduction module can imbed the heat dissipation intracavity and make the heat source conductor attach the heat transfer of luminous body in the inside wall in heat dissipation chamber and give off for the heat dissipation body and outwards through the heat dissipation rib. The heat-conducting module is embedded into the heat-radiating cavity to transfer the heat of the luminous body to the heat-radiating body, so that the contact area between the luminous body and the heat radiator is increased, and the heat transfer path is shortened.

Description

Lamp heat radiation structure

Technical Field

The utility model relates to the technical field of lighting, in particular to a lamp heat dissipation structure.

Background

COB light source is the integrated area source technique of high light efficiency with the direct mirror surface metal substrate of pasting the LED chip on high reflectance, and COB light source module can save LED's once encapsulation cost, light engine module cost of manufacture and secondary grading cost in using, but simultaneously because the LED chip concentrates the encapsulation together, causes the heat to pile up easily, seriously influences life.

Traditional COB light source is established through pasting and is radiated to the air after exporting the heat on the radiator, is subject to the size of COB light source, and COB light source heating surface is little with radiator area of contact, leads to the unable quick derivation of heat to the radiator after and radiate in the air, especially the central point of light source puts, and calorific capacity is still especially concentrated, leads to lamps and lanterns to have the not good problem of heat dissipation.

Therefore, it is an urgent need to develop a heat dissipation structure that can increase the heat conduction area of the light source and promote the heat dissipation function.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a lamp heat dissipation structure which can increase the heat transmission area of a light source and is low in cost.

In order to solve the above problems, the present invention provides the following technical solutions:

a lamp heat dissipation structure, comprising: the heat dissipation structure comprises a light emitting body, a heat conduction module and a heat dissipation body; the heat conduction module comprises a heat source conductor and a heat source contact plate which is mutually embedded with the heat source conductor and used for fixing the heat source conductor, and the luminous body is attached to the heat source contact plate; the heat dissipation body is including setting up the heat dissipation chamber in inside and setting up the heat dissipation rib at the heat dissipation body lateral wall, thereby the heat conduction module can imbed the heat dissipation intracavity and make the heat source conductor attach the heat transfer of luminous body in the inside wall in heat dissipation chamber and give off for the heat dissipation body and outwards through the heat dissipation rib.

Furthermore, the heat source conductor comprises a first contact wall and a second contact wall, the first contact wall is abutted to the heat source contact plate, the second contact wall is abutted to the inner side wall of the heat dissipation cavity, and a clamping strip used for clamping the first contact wall is arranged on one surface, away from the luminous body, of the heat source contact plate.

Furthermore, the clamping strips are arranged in a cross-shaped structure by taking the center of the heat source conductor as a symmetrical point.

Further, the second contact wall is provided in an arc shape.

Further, the second contact wall is perpendicular to the first contact wall and is fixedly connected with the first contact wall.

Furthermore, an air flow channel is arranged between any two radiating ribs.

Further, the heat dissipation rib sets up vertically.

Furthermore, still inlay the sealing washer that is equipped with fixed connection on the luminous body, the sealing washer is provided with first screw, thereby passes first screw through the set screw and connects the luminous body in the heat source contact board and be fixed in the heat conduction module.

Furthermore, the heat source contact plate is provided with second screw holes which can be matched with the first screw holes correspondingly, and the second screw holes are arranged into two groups with different diameters by taking the center of the heat source contact plate as a symmetrical point.

Further, the light emitter is configured as a COB light source.

The utility model has the beneficial effects that: the luminous body is attached to the heat source contact plate, so that the luminous body and the heat conduction module form an integrated structure, the heat conduction module transmits the heat of the luminous body to the heat dissipation body by being embedded into the heat dissipation cavity and outwards radiates the heat through the heat dissipation ribs, the contact area of the luminous body and the heat dissipation body is increased, the heat transmission path is shortened, the junction temperature of the luminous body during working is reduced, and the practical service life of the light source is prolonged.

Drawings

Fig. 1 is a perspective view of one embodiment of a heat dissipation structure of a lamp of the present invention;

FIG. 2 is a schematic structural diagram of a heat dissipation structure of a lamp according to an embodiment of the present invention;

FIG. 3 is an exploded view of one embodiment of a heat dissipation structure of a lamp of the present invention;

reference numerals:

the heat radiation device comprises a light emitting body 1, a heat conduction module 2, a heat radiation body 3, a heat source conductor 21, a heat source contact plate 22, a heat radiation cavity 31, a heat radiation rib 32, a first contact wall 211, a second contact wall 212, a clamping strip 221, a sealing ring 11, a first screw hole 111 and a second screw hole 2111.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

As shown in fig. 1-3, the present embodiment provides a heat dissipation structure of a lamp, including: the LED lamp comprises a luminous body 1, a heat conduction module 2 and a heat radiator 3; the heat conduction module 2 comprises a heat source conductor 21 and a heat source contact plate 22 which is mutually embedded with the heat source conductor 21 and is used for fixing the heat source conductor 21, and the luminophor 1 is attached to the heat source contact plate 22; the heat dissipation body 3 comprises a heat dissipation cavity 31 arranged inside and a heat dissipation rib 32 arranged on the outer side wall of the heat dissipation body 3, and the heat conduction module 2 can be embedded into the heat dissipation cavity 31 to enable the heat source conductor 21 to be attached to the inner side wall of the heat dissipation cavity 31, so that the heat of the luminous body 1 is transmitted to the heat dissipation body 3 and dissipated outwards through the heat dissipation rib 32.

As shown in fig. 1, the luminaire 1 is preferably configured as a COB light source.

Referring to fig. 1-2, optionally, the heat conducting module 2 is set to be an annular structure, and the casing of the light emitting body 1, the heat conducting module 2 and the heat sink 3 are all made of ADC12 die-cast aluminum, and are vacuumized and welded after being injected with a high-temperature-resistant working medium, so that the finished product has a weight less than one third of that of an original aluminum profile, and has the advantages of light weight and good heat conducting effect.

It can be understood that, as shown in fig. 2, in the present invention, after the back surface of the light emitting body 1 is coated with the heat conductive silicone grease (commonly called as a heat dissipation paste, the heat conductive silicone grease uses organic silicone as a main raw material, and a material with excellent heat resistance and heat conductivity is added to form a heat conductive silicone grease-like compound), the light emitting body 1 is attached to the heat source contact plate 22 of the heat conduction module 2 with a rapid heat conduction capability, so that the light source and the heat conduction module 2 form a complete heat emitting body, and under the condition of the same heat generation amount, the heat dissipation area of the light emitting body 1 is extended from a single plane to a three-dimensional ring shape, so that the heat generated by the light emitting body 1 during operation can be rapidly led out to the heat conduction module 2; and the heat conduction module 2 is attached to the inner side wall of the heat dissipation cavity 31 formed in the heat dissipation body 3 through the heat source conductor 21, so that the direct communication between the luminous body 1 and the heat dissipation body 3 is realized, the heat transfer path is shortened, and the heat dissipation rate is improved.

In the above solution, as shown in fig. 3, the heat source conductor 21 further includes a first contact wall 211 abutting against the heat source contact plate 22 and a second contact wall 212 abutting against the inner side wall of the heat dissipation cavity 31, and a clamping strip 221 for clamping the first contact wall 211 is disposed on a surface of the heat source contact plate 22 facing away from the light emitter 1.

As shown in fig. 3, specifically, the clamping strip 221 is arranged in a cross-shaped structure with the center of the heat source conductor 21 as a symmetrical point, alternatively, the number of the heat source conductors 21 is four, the four heat source conductors 21 are respectively arranged in four areas equally divided by the clamping strip 221 on the heat source contact plate 22, and the heat source conductor 21 is fixed by screws, which is advantageous in that: the heat source conductor 21 is engaged and limited by the engagement strip 221, and part of the heat emitted from the light emitting body 1 is accelerated to be transferred to the heat source conductor 21 by the engagement strip 221, thereby further accelerating heat dissipation.

As shown in fig. 3, the second contact wall 212 is preferably provided in an arc shape to be attached to the inner side wall of the heat dissipation chamber 31.

As shown in fig. 3, it is preferable that the second contact wall 212 is perpendicular to the first contact wall 211 and is fixedly connected to the first contact wall 211.

Referring to fig. 1 to 3, further, the heat dissipation ribs 32 are disposed on the outer side wall of the heat dissipation body 3, any two heat dissipation ribs 32 are provided with an air flow channel, and optionally, the heat dissipation ribs 32 are disposed in a sheet structure with a certain thickness, so that heat can be quickly conducted from the heat dissipation cavity 31 to the outside, and at the same time, the contact area with the air can be increased through the planes on both sides, and heat can be dissipated along with the air flow in time through the air flow channels on both sides, thereby achieving the purpose of quickly cooling the light emitting body 1.

As shown in fig. 1, preferably, the heat dissipation ribs 32 are vertically arranged, so that the airflow direction can be aligned with the light emitting body 1, and the heat dissipation effect can be further promoted in the airflow circulation process.

Referring to fig. 1-2, preferably, a sealing ring 11 fixedly connected to the luminous body 1 is further embedded in the luminous body 1, the sealing ring 11 is provided with a first screw hole 111, and the luminous body 1 is connected to the heat source contact plate 22 through a fixing screw passing through the first screw hole 111 so as to be fixed to the heat conduction module 2.

As shown in fig. 2, it is preferable that the heat source contact plate 22 is provided with a second screw hole 2111 corresponding to the first screw hole 111, and the second screw holes 2111 are provided in two groups having different diameters with the center of the heat source contact plate 22 as a symmetrical point, so that when the light emitting body 1 is replaced with a light source having a different shape and size, the light emitting body 1 can be installed in the hole group corresponding to the second screw hole 2111 according to the diameter of the light emitting body 1.

In summary, the light-emitting body is attached to the heat-conducting module, so that the light-emitting body and the heat-conducting module form a complete heating body, the heat-radiating area of the light-emitting body is expanded from a single plane to a three-dimensional ring shape under the condition of the same heat productivity, and the heat-radiating area is fixedly connected with the heat-radiating body by being attached to the inner side wall of the heat-radiating cavity through the heat source conductor, so that the contact area of the light-emitting body to the heat-radiating body is increased; therefore, the heat transfer path is shortened, the heat dissipation rate is improved, the junction temperature of the luminous body during working is reduced, and the practical service life of the light source is prolonged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A lamp heat radiation structure is characterized by comprising: the heat dissipation module comprises a light emitting body, a heat conduction module and a heat dissipation body; the heat conduction module comprises a heat source conductor and a heat source contact plate which is mutually embedded with the heat source conductor and is used for fixing the heat source conductor, and the luminous body is attached to the heat source contact plate; the heat dissipation body comprises a heat dissipation cavity arranged inside and heat dissipation ribs arranged on the outer side wall of the heat dissipation body, and the heat conduction module can be embedded into the heat dissipation cavity to enable the heat source conductor to be attached to the inner side wall of the heat dissipation cavity, so that heat of the luminous body is transmitted to the heat dissipation body and is dissipated outwards through the heat dissipation ribs.

2. The heat dissipation structure of claim 1, wherein: the heat source conductor comprises a first contact wall and a second contact wall, the first contact wall is abutted against the heat source contact plate, the second contact wall is abutted against the inner side wall of the heat dissipation cavity, and a clamping strip used for clamping the first contact wall is arranged on one side, which is far away from the luminous body, of the heat source contact plate.

3. A lamp heat dissipation structure as defined in claim 2, wherein: the clamping strips are arranged in a cross-shaped structure by taking the center of the heat source conductor as a symmetrical point.

4. A lamp heat dissipation structure as defined in claim 3, wherein: the second contact wall is provided in an arc shape.

5. The heat dissipation structure of claim 4, wherein: the second contact wall is perpendicular to the first contact wall and is fixedly connected with the first contact wall.

6. The heat dissipation structure of claim 1, wherein: and an airflow channel is arranged between any two radiating ribs.

7. The heat dissipation structure of claim 6, wherein: and randomly, the heat dissipation ribs are vertically arranged.

8. The heat dissipation structure of claim 1, wherein: the heat conduction module is characterized in that a sealing ring fixedly connected is further embedded in the luminous body, the sealing ring is provided with a first screw hole, and the luminous body is connected to the heat source contact plate through a fixing screw penetrating through the first screw hole so as to be fixed to the heat conduction module.

9. The heat dissipation structure of claim 8, wherein: the heat source contact plate is provided with second screw holes which can be matched with the first screw holes, and the second screw holes are arranged into two groups with different diameters by taking the center of the heat source contact plate as a symmetrical point.

10. A lamp heat dissipation structure as defined in claim 9, wherein: the luminous body sets up to COB light source.

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