CN217030868U

CN217030868U - Light source device easy to radiate

Info

Publication number: CN217030868U
Application number: CN202220894985.7U
Authority: CN
Inventors: 李隆; 郑镇城; 徐连城
Original assignee: Hongtai Intelligent Technology Dongguan Co Ltd
Current assignee: Hongtai Intelligent Technology Dongguan Co Ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-22
Anticipated expiration: 2032-04-18

Abstract

The utility model relates to the technical field of illumination, and provides a light source device easy to dissipate heat, which comprises a cover body, wherein a containing cavity is formed in the cover body, the cover body is provided with a vertically arranged through groove, and the through grooves are centrally and symmetrically distributed on the cover body and are integrally formed with the cover body; the light source device also comprises a light source component, a heat conducting module and a radiator which are all arranged in the accommodating cavity; the radiator is internally provided with a clamping hole which can be clamped with the heat conduction module, the light source component comprises a luminous body which is attached to the end face of the heat conduction module, and the heat conduction module is attached to the inner side wall of the clamping hole and fixedly connected with the radiator. According to the utility model, the luminous body is attached to the heat conduction module, and the heat conduction module is attached to the inner side wall of the clamping hole and fixedly connected with the radiator, so that the heat transfer path is shortened, and the air flow flows from the through groove to the radiator through the through groove vertically arranged on the cover body, so that the heat dissipation rate is improved.

Description

Light source device easy to radiate

Technical Field

The utility model relates to the technical field of illumination, in particular to a light source device easy to radiate heat.

Background

COB (Chip On Board) light source is a high light efficiency integrated surface light source technology for directly pasting an LED Chip On a mirror surface metal substrate with high light reflection rate, a bracket concept is eliminated, and no electroless plating, reflow soldering and pasting procedures are needed, so that the procedures are reduced by nearly one third, and the cost is saved by one third. But simultaneously, because the LED chips are packaged together in a concentrated manner, heat accumulation is easily caused, and the service life is seriously influenced.

The conventional method is that heat-conducting silicone grease is coated on a COB light source and then is attached to the surface of a radiator, and heat is led out through the radiator and then is radiated into the air; in this in-process, be subject to the size of COB light source, COB light source heating surface is little with radiator area of contact, leads to the unable quick derivation of heat to the radiator and in the radiation air, causes COB light source heat to pile up, especially the central point of light source puts, and calorific capacity is especially concentrated, has influenced the life of light source. In order to increase the contact area, a small number of manufacturers increase metal-copper with high thermal conductivity between the contact surface of the COB light source and the radiator; although the heat transfer is accelerated to a certain extent, the specific gravity of copper is large, the cost is high, and the overall cost is increased in practical use.

Therefore, how to rapidly guide out heat accumulated during the operation of the COB light source under the condition of ensuring controllable cost and reduce the junction temperature during the operation of the LED chip, so as to improve the service life of the COB light source is a key problem that needs to be considered during the actual use of the COB light source.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a light source device which is large in heat dissipation area, easy to rapidly cool and low in cost.

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

a light source device easy to radiate heat comprises a cover body, wherein a containing cavity is formed in the cover body, the cover body is provided with a vertically arranged through groove, and the through grooves are centrally symmetrically distributed on the cover body and are integrally formed with the cover body; the light source device also comprises a light source component, a heat conduction module and a radiator which are all arranged in the accommodating cavity; the radiator is internally provided with a clamping hole which can be clamped with the heat conduction module, the light source component comprises a luminous body which is attached to the end face of the heat conduction module, and the heat conduction module is attached to the inner side wall of the clamping hole and fixedly connected with the radiator.

Further, the luminary is arranged as a cob light source.

Furthermore, the outer side wall of any clamping hole is provided with a plurality of vertically arranged radiating ribs, and an airflow channel is arranged between any two radiating ribs.

Furthermore, a plurality of radiating ribs are uniformly distributed on the outer side wall of any clamping hole, and the middle part of the radiating rib is provided with a avoiding groove of a trimming structure along the cambered surface of the cover body.

Furthermore, the portable solar heat collector further comprises a power supply body arranged on the cover body, the power supply body comprises a switching plate fixedly arranged at the bottom, the radiator is provided with a heat conduction rod fixedly connected with the radiator and extending towards the power supply body, the switching plate is provided with a limiting hole matched with the heat conduction rod, and the heat conduction rod penetrates through the limiting hole and is fixedly connected with the switching plate.

Furthermore, the power supply body also comprises a first mounting part for mounting on the adapter plate, an isolation part fixedly connected with the first mounting part and a first fixing groove formed in the periphery of the isolation part; the first mounting portion is fixedly connected with the first fixing groove through screws.

Furthermore, the power supply body also comprises a second mounting part for mounting on the adapter plate and a second fixing groove arranged on the periphery of the isolation part; the adapter plate is provided with a first through hole matched with the second fixing groove, the adapter plate is abutted to one end, away from the mounting portion, of the isolating portion, and the first through hole is fixedly connected with the second fixing groove through a screw.

Furthermore, the light source component also comprises a lens module, and the lens module is covered on one side of the radiator departing from the power supply body and is fixed with the radiator.

Furthermore, the lens module comprises a sealing ring embedded on the luminous body, a lens attached to the sealing ring and a lens pressing ring buckled on the lens and used for fixing the lens and the sealing ring.

The utility model has the beneficial effects that: the luminous body is attached to the heat conduction module, so that the luminous body and the heat conduction module form a complete heating body, the heat dissipation area of the luminous body is expanded to a three-dimensional annular shape from a single plane under the condition of the same heat productivity, and the luminous body is attached to the inner side wall of the clamping hole through the heat conduction module and fixedly connected with the radiator, so that the contact area between the luminous body and the radiator is increased, and the heat transfer path is shortened; and the through slot that sets up through the lid is vertical makes the air current flow to the radiator from through the through slot, has promoted rate of heat dissipation, has reduced the junction temperature of luminous body during operation, has promoted the practical life of light source.

Drawings

FIG. 1 is a perspective view of one embodiment of a light source device with easy heat dissipation;

FIG. 2 is a cross-sectional view of one embodiment of a light source device with easy heat dissipation according to the present invention;

FIG. 3 is a schematic structural diagram of a light source device with easy heat dissipation according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the heat sink of FIG. 3;

FIG. 5 is an exploded view of one embodiment of a heat dissipation facilitating light source device of the present invention;

fig. 6 is an enlarged view of the power supply body of fig. 5.

Reference numerals are as follows:

the light emitting module comprises a cover body 1, a receiving cavity 10, a light source assembly 101, a heat conduction module 102, a heat sink 103, a clamping hole 131, a light emitting body 121, a through groove 11, a heat dissipation rib 132, an avoiding groove 133, a power supply body 2, an adapter plate 20, a heat conduction rod 134, a limiting hole 301, a heat dissipation fin 201, a first mounting portion 202, an isolating portion 203, a first fixing groove 211, a second mounting portion 204, a second fixing groove 221, a first through hole 302, a lens module 111, a sealing ring 122, a lens 123 and a lens pressing ring 124.

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, 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.

Referring to fig. 1 to 6, the present embodiment provides an easy-to-dissipate light source device, which includes a cover body 1, a receiving cavity 10 is formed inside the cover body 1, the cover body 1 is provided with a through slot 11 vertically disposed, the through slot 11 is centrally and symmetrically distributed on the cover body 1 and is integrally formed with the cover body 1, and an air flow passes through the through slot 11 and then generates a wind tunnel effect with respect to a heat sink 103. Preferably, the light source device further includes a light source assembly 101, a heat conduction module 102 and a heat sink 103 all disposed in the receiving cavity 10; a clamping hole 131 capable of being clamped with the heat conducting module 102 is arranged in the heat sink 103, the light source assembly 101 comprises a light emitting body 121 attached to the end face of the heat conducting module 102, and the heat conducting module 102 is attached to the inner side wall of the clamping hole 131 and fixedly connected with the heat sink 103.

As shown in fig. 3, the thermal conductive module 102 may be arranged in a ring structure.

As shown in fig. 3, preferably, the light emitter 121 is configured as a cob light source, and the cob light source and the heat conduction module 102 are fixed by screws.

It can be understood that, as shown in fig. 3, in the present invention, after the heat conductive silicone grease is coated on the back surface of the light emitting body 121, the light emitting body 121 is attached to and installed on the end surface of the heat conducting module 102 with rapid heat conducting capability, so that the light source and the heat conducting module 102 form a complete heating body, and under the condition that the heat generation amount is the same, the heat dissipation area of the light emitting body 121 is extended from a single plane to a three-dimensional ring shape, so that the heat generated by the light emitting body 121 during operation can be rapidly conducted to the heat conducting module 102; and the heat conduction module 102 is embedded into the radiator 103 through the clamping hole 131 formed in the radiator 103, so that the direct communication between the light emitter 121 and the radiator 103 is realized, the heat transfer path is shortened, and the air flow flows from the through groove 11 to the radiator 103 through the through groove 11 vertically arranged on the cover body 1, so that the heat dissipation rate is improved.

Referring to fig. 1 and 3, optionally, an air inlet channel is disposed on a side of the heat sink 103 facing away from the cover body 1, the air inlet channel is uniformly disposed on an outer periphery of the openings of the clamping holes 131, and an air inlet is disposed on an inner periphery of the openings of any two clamping holes 131, so as to further accelerate heat dissipation.

Optionally, the heat conduction module 102 and the radiator 103 are both made of die-cast aluminum with a hollow structure, and are welded by injecting high-temperature-resistant working medium and then vacuumizing, so that the weight of a finished product is less than one third of that of an original aluminum profile, and the aluminum profile has the advantages of light weight and good heat conduction effect.

Referring to fig. 1-4, further, a plurality of vertically arranged heat dissipation ribs 132 are disposed on an outer side wall of any one of the locking holes 131 away from the lower end surface of the heat sink 103, and an airflow channel is disposed between any two heat dissipation ribs 132. Optionally, heat dissipation rib 132 sets up to the sheet structure who has certain thickness, and it is when realizing quick outside heat conduction from calorie hole 131, still accessible both sides plane increase and the area of contact of air, and the air current passageway through both sides makes the heat can in time distribute along with the air current, reaches the purpose to luminous body 121 rapid cooling.

Referring to fig. 3-4, preferably, a plurality of heat dissipation ribs 132 are uniformly distributed on the outer side wall of any of the clamping holes 131, wherein an avoiding groove 133 matched with the arc surface of the cover body 1 is formed in a part of the heat dissipation ribs 132 on the clamping holes 131 arranged around the heat sink 103, and the avoiding groove 133 is of a trimming structure; it can be understood that, when the cover body 1 is buckled in the heat sink 103, the avoiding groove 133 corresponds to the through groove 11 provided in the cover body 1, so that the air flow flows to the air flow channel from the through groove 11 through the avoiding groove 133 more easily, the air inlet efficiency of the air flow channel is further improved, the heat dissipation rate of the heat dissipation ribs is also increased, and the heat dissipation outward is further accelerated.

Referring to fig. 5-6, preferably, the power supply further includes a power supply body 2 disposed on the upper portion of the cover body 1, the power supply body 2 includes an adapter plate 20 fixedly disposed on the bottom, a heat conducting rod 134 fixedly connected to the heat sink 103 and extending toward the power supply body 2 is disposed on a surface of the heat sink 103 facing the cover body 1, the adapter plate 20 is provided with a limiting hole 301 matched with the heat conducting rod 134, and the heat conducting rod 134 passes through the limiting hole 301 and is fixedly connected to the adapter plate 20; optionally, the power supply body 2 is further provided with heat dissipation fins 201 similar to the heat dissipation ribs 132, and the heat conduction rod 134 is fixedly connected with the adapter plate 20, so that part of heat can be transmitted to the power supply body 2, and further dissipated outwards through the heat dissipation fins 201.

As shown in fig. 6, preferably, the power supply body 2 further includes a first mounting portion 202 for mounting on the adapter plate 20, a separating portion 203 engaged and fixed with the first mounting portion 202, and a first fixing groove 211 formed on the outer periphery of the separating portion 203; the first mounting part 202 is fixedly connected with the first fixing groove 211 through screws, so that the power supply body 2 is fixedly connected with the isolation part 203; the power supply body 2 is isolated from the adapter plate 20 by the isolation portion 203, so that the heat conducting rod 134 conducts the transferred heat to the isolation portion 203 through the adapter plate 20, and further directly radiates to the heat dissipation fins 201 where the power supply body 2 is located through the isolation portion 203, thereby preventing internal components of the power supply body 2 from being damaged by heat.

As shown in fig. 6, preferably, the power supply body 2 further includes a second mounting portion 204 for mounting on the interposer 20 and a second fixing groove 221 opened on the outer periphery of the partition portion 203; the adapter plate 20 is provided with a first through hole 302 matched with the second fixing groove 221, and the adapter plate 20 is abutted against one end of the isolation portion 203 far away from the mounting portion, and the first through hole 302 and the second fixing groove 221 are fixedly connected through screws.

Referring to fig. 2 and 5, preferably, the light source assembly 101 further includes a lens module 111, and the lens module 111 is disposed on a side of the heat sink 103 away from the power body 2 and is fixed and nested with the light emitters 121, so that the lens module 111 can refract and diffuse light emitted by the light emitters 121.

As shown in fig. 5, the lens module 111 preferably includes a sealing ring 122 embedded on the light emitter 121, a lens 123 attached to the sealing ring 122, and a lens ring 124 fastened to the lens 123 for fixing the lens 123 and the sealing ring 122; optionally, the sealing ring is manufactured by adopting glass fiber as a material, has the characteristics of water resistance, high temperature resistance and low heat conductivity coefficient, and can effectively protect the lens and prevent the lens from being damaged by heat.

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-conducting module is attached to the inner side wall of the clamping hole and fixedly connected with the radiator, so that the contact area between the light-emitting body and the radiator 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, those of ordinary skill in the art will understand 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

1. The utility model provides an easy radiating light source device, includes the lid, form in the lid and accept the cavity, its characterized in that: the cover body is provided with a vertically arranged through groove, and the through groove is centrally and symmetrically distributed on the cover body and is integrally formed with the cover body; the light source device also comprises a light source component, a heat conduction module and a radiator which are all arranged in the accommodating cavity; the heat radiator is provided with a clamping hole which can be clamped with the heat conduction module, the light source assembly comprises a luminous body which is attached to the end face of the heat conduction module, and the heat conduction module is attached to the inner side wall of the clamping hole and fixedly connected with the heat radiator.

2. A light source device easy to dissipate heat according to claim 1, wherein: the light emitting body is set as a cob light source.

3. A light source device easy to dissipate heat according to claim 1, wherein: the lateral wall of arbitrary card hole all has the heat dissipation rib of a plurality of vertical settings, arbitrary two all be equipped with airflow channel between the heat dissipation rib.

4. A light source device easy to dissipate heat according to claim 3, wherein: the heat dissipation ribs are uniformly distributed on the outer side wall of the clamping hole, and part of the heat dissipation ribs are arranged along the arc surface of the cover body and provided with avoidance grooves of a trimming structure.

5. A light source device easy to dissipate heat according to claim 1, wherein: the heat dissipation device is characterized by further comprising a power supply body arranged on the cover body, the power supply body comprises an adapter plate fixedly arranged at the bottom, the radiator is provided with a heat conduction rod fixedly connected with the radiator and extending towards the power supply body, the adapter plate is provided with a limiting hole matched with the heat conduction rod, and the heat conduction rod penetrates through the limiting hole and is fixedly connected with the adapter plate.

6. A light source device easy to dissipate heat according to claim 5, wherein: the power supply body further comprises a first mounting part, a separation part and a first fixing groove, wherein the first mounting part is used for being mounted on the adapter plate, the separation part is fixedly connected with the first mounting part, and the first fixing groove is formed in the periphery of the separation part; and the first mounting part is fixedly connected with the first fixing groove through a screw.

7. A light source device easy to dissipate heat according to claim 6, wherein: the power supply body further comprises a second mounting part and a second fixing groove, the second mounting part is mounted on the adapter plate, and the second fixing groove is formed in the periphery of the isolation part; the adapter plate is provided with a first through hole matched with the second fixing groove, the adapter plate is connected with one end of the mounting portion in a propping mode, and the first through hole is fixedly connected with the second fixing groove.

8. A light source device easy to dissipate heat according to claim 7, wherein: the light source component further comprises a lens module, and the lens module is covered on one side, away from the power supply body, of the radiator and fixed with the radiator.

9. A light source device easy to dissipate heat according to claim 8, wherein: the lens module comprises a sealing ring embedded on the luminous body, a lens attached to the sealing ring and a lens pressing ring buckled on the lens and used for fixing the lens and the sealing ring.