CN201903031U - Cooling module for LED lamps - Google Patents

Abstract

The utility model relates to a heat radiation module for LED lamps and lanterns, the heat radiation module for LED lamps and lanterns includes a temperature equalization board, a hollow cylinder and a plurality of heat radiation fins, the temperature equalization board has an evaporation zone and a pair of condensation zone that extends from the evaporation zone; a pair of grooves corresponding to each other are formed in the outer surface of the hollow cylinder body, and a condensation section is embedded in each groove; the radiating fins are annularly arranged on the peripheries of the hollow cylinder and the condensing section and are in thermal contact with each other. The heat generated by the LED lamp can be efficiently dissipated through the direct thermal contact of the radiating fins with the hollow cylinder and the temperature-equalizing plate; each radiating fin is connected with the temperature equalizing plate and the hollow cylinder after being formed by a thin plate in a punching way, so that the whole weight can be greatly reduced, and a larger radiating surface area is arranged in a unit volume; in addition, the heat conducting seat is provided with an accommodating groove to be fixedly connected with the temperature-uniforming plate, and the temperature-uniforming plate and the LED heat source conduct heat directly through the notch.

Description

Cooling module for LED lamps

technical field

The utility model relates to a heat dissipation module, in particular to a heat dissipation module used for LED lamps.

Background technique

Light Emitting Diode (LED) has the characteristics of low energy consumption, power saving, long service life, small size, fast response, etc. It has gradually replaced traditional light bulbs and is widely used in various lighting fixtures. However, the change of temperature is related to the service life and various performances of LEDs. Therefore, how to make the most suitable layout design for this cooling module is an important subject of this case study.

The known heat dissipation module for LED lamps, as disclosed in the Taiwan Patent of China with the notification number TWM369430 previously applied by the inventor of the present invention, mainly includes a hollow cylinder and a vapor chamber, and the vapor chamber has an evaporation section and a condensing section, the condensing section is installed in the hollow cylinder and attached to the inner wall surface, and the evaporating section is fixed to the LED lamp; thus, a heat dissipation module is combined.

However, although the above-mentioned structure has a good heat dissipation effect, its heat dissipation effect is obviously not good for increasingly high-power LEDs or high-wattage LEDs, and still needs to be improved.

Utility model content

In view of this, the purpose of the present utility model is to provide a heat dissipation module for LED lamps, which can efficiently dissipate heat from LED lamps by directly thermally contacting each heat dissipation fin with the hollow cylinder and the vapor chamber. The heat generated is dissipated.

In order to achieve the above purpose, the utility model provides a heat dissipation module for LED lamps, and the heat dissipation module for LED lamps includes:

a vapor chamber having an evaporating section and a pair of condensing sections extending from the evaporating section;

A hollow cylinder, the outer surface of which is provided with a pair of grooves corresponding to each other, and a condensation section is embedded in the groove;

A plurality of cooling fins are arranged annularly on the outer periphery of the hollow cylinder and the condensation section and are in thermal contact with each other.

As a preferred solution, the heat dissipation module for LED lamps further includes a heat conduction seat, and the heat conduction seat is in thermal contact with the evaporation section of the vapor chamber.

As a preferred solution, the vapor chamber is U-shaped, with an evaporating section formed in its transverse portion and a condensing section formed in its vertical portion.

As a preferred solution, the transverse section of the condensing section is arc-shaped, and an inner arc surface and an outer arc surface are respectively formed, the inner arc surface is attached to the hollow cylinder, and the outer arc surface is attached to the heat dissipation fins. catch.

As a preferred solution, the outer arc surface and the outer peripheral surface of the hollow cylinder jointly form a circular peripheral edge.

As a preferred solution, the heat conduction seat is provided with a housing groove, and a through notch is formed at the bottom of the housing tank, the evaporation section sinks into the housing groove, and a bare and A flat surface that is flush with the bottom surface of the thermal pad.

As a preferred solution, the heat dissipation module for LED lamps further includes a heat dissipation body, and the heat dissipation body is in thermal contact with the evaporation section.

As a preferred solution, the radiator has a bottom plate attached to the evaporation section and a plurality of cooling columns extending on the bottom plate.

As a preferred solution, a pair of protruding plates are extended from the bottom plate, two sides of the accommodation groove of the heat conduction seat are respectively provided with a corresponding step, and the protruding plates are embedded on the steps.

As a preferred solution, the heat dissipation fins are L-shaped, the short sides of the heat dissipation fins are attached to the hollow cylinder or the condensation section respectively, and the long sides of the heat dissipation fins are radially formed on the hollow cylinder and the condensation section outside around.

As a preferred solution, the free ends of the heat dissipation fins are provided with a plurality of through slots.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model can efficiently dissipate the heat generated by LED lamps through the direct thermal contact between the heat dissipation fins and the hollow cylinder and the uniform temperature plate; And the hollow cylinder, not only can greatly reduce the overall weight, but also has a large heat dissipation surface area per unit volume; in addition, a housing groove is provided on the heat conduction seat to facilitate the fixed connection with the temperature chamber, and through the The notch is set so that the heat chamber can directly conduct heat with the LED heat source; and each heat dissipation fin is provided with a through groove to form a lateral gas convection effect between any two adjacent gas channels.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the heat dissipation module of the present invention;

Fig. 2 is a combination appearance diagram of the heat dissipation module of the present invention;

Fig. 3 is the 3-3 sectional view of Fig. 2;

Fig. 4 is a sectional view of 4-4 of Fig. 3;

Fig. 5 is a cross-sectional view of the utility model applied to LED lamps in use.

[Description of main component symbols]

Heat conducting seat-10; accommodating groove-11; through notch-111; step-12;

Vapor chamber-20; evaporation section-21; flat surface-211; condensation section-22, 23; inner arc surface-221, 231; outer arc surface-222, 232;

Hollow cylinder-30; Groove-31, 32;

Radiating fins-40; Through slots-41;

Radiator-50; Bottom plate-51; Radiating column-52; Convex plate-53;

LED lamps - 8; circuit boards - 81; light emitting diodes - 82.

Detailed ways

For the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings, and the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present utility model.

Please refer to Figures 1 to 4, the utility model provides a heat dissipation module for LED lamps, the heat dissipation module of this embodiment mainly includes a heat conduction seat 10, a temperature uniform plate 20, a hollow cylinder 30 and multiple a cooling fin 40.

The heat conduction seat 10 is made of metal materials such as aluminum, copper or their alloys, and is roughly in the shape of a circular plate, with a rectangular accommodating groove 11 formed in the middle thereof, and a through notch 111 is formed at the bottom of the accommodating groove 11 , and a corresponding step 12 is respectively provided on two sides of the accommodating tank 11 .

Vapor Chamber 20 (Vapor Chamber) is a vacuum chamber with components such as capillary tissue and working fluid installed inside. It uses the vapor-liquid phase change of the working fluid to achieve heat conduction, and provides a liquid return mechanism through capillary tissue to The action of forming a continuous cycle; the uniform temperature plate 20 of the present embodiment is roughly a U-shaped, which has an evaporation section 21 of the horizontal part and a pair of condensation sections 22 and 23 of the vertical part extending from the evaporation section 21. The segment 21 sinks into the accommodating groove 11 and is in thermal contact with the heat conduction seat 10, and a flat surface 211 that is exposed and flush with the bottom surface of the heat conduction seat 10 is formed at a position corresponding to the through notch 111; the transverse section of each condensation segment 22, 23 The section is arc-shaped (as shown in FIG. 4 ), and an inner arc surface 221 , 231 and an outer arc surface 222 , 232 are respectively formed.

The hollow cylinder 30 is made of materials with good conductivity such as aluminum and copper. A pair of grooves 31 and 32 corresponding to each other are provided on the outer surface of the hollow cylinder 30. The condensation sections 22, 32 of the vapor chamber 20 23 are respectively buried in the grooves 31, 32, and the inner arc surfaces 221, 231 are closely attached to the hollow cylinder 30 to conduct heat, while the outer arc surfaces 222, 232 of the condensation sections 22, 23 are exposed , and together with the outer peripheral surface of the hollow cylinder 30 form a circular peripheral edge (as shown in FIG. 4 ).

Each cooling fin 40 is stamped and formed with a thin plate, and its material can be aluminum, copper or its alloy, etc., and the cooling fin 40 is roughly an L-shaped (as shown in Figure 4 ), and its short side is in thermal contact with the hollow cylinder. 30 and the outer arc surfaces 222 , 232 of each condensation section 22 , 23 are arranged in a ring shape, and the long sides are formed radially around the hollow cylinder 30 and each condensation section 22 , 23 . In addition, a plurality of through grooves 41 are opened at the free end of each heat dissipation fin 40 to form a lateral gas convection effect between any two adjacent gas channels.

In addition, the utility model also includes a heat sink 50, the heat sink 50 is made of metal materials such as aluminum, copper or its alloy, it has a bottom plate 51 and a plurality of heat dissipation columns 52 are extended on the bottom plate 51, and in the heat dissipation A pair of protruding plates 53 extend from the bottom plate 51 on the outside of the column 52 ;

Please refer to Fig. 5, the heat dissipation module of the present invention can be applied to an LED lamp 8, the LED lamp 8 has a circuit board 81 and a plurality of light emitting diodes 82 arranged on the circuit board 81; 81 corresponds to the bottom surface of the heat conduction seat 10, and the back of the circuit board 81 or each light emitting diode 82 is aligned with the position of the flat surface 211 to arrange, and the heat generated by each light emitting diode 82 will be conducted from the flat surface 211 to the The temperature plate 20 brings heat to the condensation sections 22 and 23 through the vapor-liquid phase heat transfer mechanism of the vapor chamber 20, a part of the heat is conducted to the hollow cylinder 30 for dissipation, and the other part of the heat is directly conducted to the The heat dissipation fins 40 are dissipated; in this way, the heat generated by the light emitting diodes 82 of the LED lamp 8 can be efficiently dissipated.

The above are only preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent structural changes made in the utility model description and accompanying drawings should be included in the utility model. within the scope of protection.

Claims (11)

1. a radiating module that is used for the LED light fixture is characterized in that, the radiating module of the described LED of being used for light fixture comprises:

One temperature-uniforming plate, it has an evaporator section and the extended a pair of condensation segment of spontaneous evaporation section;

One hollow cylinder, its outer surface offer a pair of groove of mutual correspondence, are embedded with described condensation segment in the groove; And

A plurality of radiating fins, its annular array is in hollow cylinder and condensation segment outer peripheral edges and thermo-contact each other.

2. be used for the radiating module of LED light fixture according to claim 1, it is characterized in that, the radiating module of the described LED of being used for light fixture also comprises a heat-conducting seat, and the heat-conducting seat thermo-contact is in the evaporator section of temperature-uniforming plate.

3. as being used for the radiating module of LED light fixture as described in the claim 2, it is characterized in that described temperature-uniforming plate is a U font, its lateral part is formed with evaporator section, and longitudinal component is formed with condensation segment.

4. as being used for the radiating module of LED light fixture as described in the claim 3, it is characterized in that the laterally face of deciding what is right and what is wrong of described condensation segment is a circular arc, and be formed with an intrados and an extrados respectively that intrados and hollow cylinder amplexiform, extrados then amplexiforms with radiating fin.

5. as being used for the radiating module of LED light fixture as described in the claim 4, it is characterized in that the common circular perimeter that forms of the outer peripheral face of described extrados and hollow cylinder.

6. as being used for the radiating module of LED light fixture as described in the claim 2, it is characterized in that, described heat-conducting seat offers a storage tank, be formed with one in the bottom of storage tank and run through notch, evaporator section sinks in the storage tank, and is formed with a plane surface exposed and that flush with the heat-conducting seat bottom surface in the position that the evaporator section correspondence runs through notch.

7. as being used for the radiating module of LED light fixture as described in the claim 6, it is characterized in that the radiating module of the described LED of being used for light fixture also comprises a radiator, the radiator thermo-contact is on evaporator section.

8. as being used for the radiating module of LED light fixture as described in the claim 7, it is characterized in that described radiator has a base plate that amplexiforms evaporator section and a plurality of thermal columns that extend on base plate.

9. as being used for the radiating module of LED light fixture as described in the claim 8, it is characterized in that described base plate is extended with a pair of flange, the storage tank dual side-edge of heat-conducting seat is respectively equipped with a corresponding step, and the flange build-in is on step.

10. the radiating module that is used for the LED light fixture according to claim 1, it is characterized in that, described radiating fin is a L font, and the minor face of radiating fin amplexiforms with hollow cylinder or condensation segment respectively, and the long limit of radiating fin is radial hollow cylinder and the condensation segment outside of being formed at.

11., it is characterized in that the free end of described radiating fin offers a plurality of grooves as being used for the radiating module of LED light fixture as described in the claim 10.

Images