CN207094207U - A kind of LED radiator structure and LED - Google Patents

Abstract

The utility model discloses a heat dissipation structure of an LED lamp, which is connected with the lampshade in the LED lamp. The heat dissipation structure of the LED lamp comprises a shell, a heat dissipation plate, a spiral heat dissipation part, a radiator and a cooling liquid power pump; the shell is provided with a clamping slot , liquid inlet and liquid outlet, the heat sink is fixed inside the shell, the upper surface of the heat sink is provided with grooves, the lower surface of the heat sink is fixed with a spiral heat sink, and there is a connection between the liquid inlet and the liquid outlet Coolant power pump and radiator, the card slot matches the protruding ring at the end of the lampshade, and the groove matches the substrate for fixing the LED lamp beads. The utility model has a simple structure and a reasonable design. The cooling liquid convection heat dissipation method is adopted to replace the traditional heat dissipation through air convection, and the heat dissipation efficiency is further greatly enhanced, making the LED lamp heat dissipation structure more suitable for high-power working conditions; the spiral heat dissipation parts can be The contact area between the heat dissipation structure of the LED lamp and the cooling liquid in the shell is greatly increased, and the heat dissipation efficiency of the LED heat dissipation device with the same volume is improved.

Description

A kind of heat dissipation structure of LED lamp and LED lamp

technical field

The utility model relates to the technical field of LED lighting, in particular to an LED lamp cooling structure and an LED lamp used in high-power working conditions.

Background technique

LED (Light Emitting Diode), light-emitting diode, is a solid-state semiconductor device that can directly convert electricity into light. LED light source has the advantages of using low-voltage power supply, less energy consumption, strong applicability, high stability, short response time, no pollution to the environment, multi-color light, etc. Although the price is more expensive than the existing lighting equipment, it is still considered to be the Inevitable replacement of existing lighting devices.

Traditional LED lamp beads have low power and require little heat dissipation, so the problem of heat dissipation is not serious. For high-power devices, the input power is >1W, and the size of the lamp bead is 1mm*lmm～2.5mm*2.5mm, and the power density of the lamp bead is very high. Based on the current semiconductor manufacturing technology, high-power LEDs can only convert about 15% of the input power into light energy, while the remaining 85% is converted into heat energy. If the package size is simply enlarged proportionally, the heat of the lamp bead will not dissipate, which will accelerate the aging of the lamp bead and phosphor, and may also cause the solder of the flip-chip to melt, making the lamp bead invalid. When the temperature rises, LED chromaticity will also become worse, causing a series of bad consequences. In order to ensure the life of the device, the junction temperature is generally required to be below 110°C, so heat dissipation is of great significance to LEDs. If there is no good heat dissipation method, the heat of the lamp bead will not be dissipated, which will make the lamp bead invalid. With the increase of LED power, LED lamp beads emit more and more heat, and the heat dissipation problem of LED becomes more and more prominent. Moreover, the aluminum base plate of the existing LED lamp is mainly fixed on the heat sink or in the card slot by glue, and the distance between the LED lamp bead and the lampshade cannot be adjusted freely according to the size of the room, so that the luminous brightness and uniformity of the LED can be adjusted. optimal. Due to the unreasonable design of the heat dissipation structure, it is easy to cause uneven light emission of the LED lamp, and there are disadvantages of dark areas.

Utility model content

In order to overcome the deficiencies of the prior art, one of the purposes of this utility model is to provide a heat dissipation structure for LED lamps under high-power working conditions, which has a simple structure, reasonable design and high heat dissipation efficiency, and can freely Adjust the distance between the LED lamp bead and the lampshade to optimize the brightness and uniformity of the LED light.

The second object of the present utility model is to provide an LED lamp comprising the above LED lamp heat dissipation structure.

One of purpose of this utility model adopts following technical scheme to realize:

A heat dissipation structure of an LED lamp, the heat dissipation structure of the LED lamp is connected with the lampshade in the LED lamp, and is used to absorb the heat of the LED lamp beads in the LED lamp, and the heat dissipation structure of the LED lamp includes a casing, a heat dissipation plate, and a spiral heat dissipation member , a radiator and a coolant power pump; the housing is provided with a card slot, a liquid inlet and a liquid outlet, the heat dissipation plate is fixed inside the housing, and the upper surface of the heat dissipation plate is provided with a groove, The lower surface of the heat dissipation plate is fixed with a spiral heat dissipation piece, the coolant power pump and the radiator are connected between the liquid inlet and the liquid outlet, the clamping groove and the protrusion at the end of the lampshade The ring is matched, and the groove is matched with the substrate on which the LED lamp bead is fixed.

Preferably, the bottom of the groove is provided with a through hole.

Preferably, the heat dissipation structure of the LED lamp further includes a one-way valve, and the liquid inlet communicates with the liquid outlet through the coolant power pump, the radiator and the one-way valve.

Preferably, the heat dissipation structure of the LED lamp further includes a bottom plate, and the bottom plate is fixed to the bottom of the housing.

Preferably, the outer surface of the spiral heat sink is provided with a corrugated structure.

Two of the purpose of this utility model adopts following technical scheme to realize:

An LED lamp. The LED lamp includes a lampshade, LED lamp beads, and a substrate. The LED lamp also includes a heat dissipation structure for the LED lamp; a convex ring is provided at the end of the lampshade; the heat dissipation structure for the LED lamp includes a housing, a Plate, spiral heat sink, radiator and coolant power pump; the housing is provided with a card slot, liquid inlet and liquid outlet, the heat sink is fixed inside the shell, and the top of the heat sink The surface is provided with a groove, the lower surface of the heat dissipation plate is fixed with a spiral heat sink, the coolant power pump and the radiator are connected between the liquid inlet and the liquid outlet, the clamping groove and the The protruding ring is matched, the groove is matched with the base plate, and the LED lamp bead is fixed on the base plate.

Preferably, the LED lamp further includes a threaded piece, the base plate is provided with a threaded hole, the bottom of the groove is provided with a through hole, the threaded hole matches the through hole, and the threaded piece passes through the The through hole and the threaded hole are threadedly connected with the substrate.

Preferably, the LED lamp further includes a seal, and the seal is interposed between the screw and the heat dissipation plate.

Preferably, the heat dissipation structure of the LED lamp further includes a one-way valve, and the liquid inlet communicates with the liquid outlet through the coolant power pump, the radiator and the one-way valve.

Preferably, the heat dissipation structure of the LED lamp further includes a bottom plate, and the bottom plate is fixed to the bottom of the housing.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model provides a heat dissipation structure for an LED lamp. By providing a liquid inlet and a liquid outlet on the housing, the cooling liquid is connected between the liquid inlet and the liquid outlet. For the power pump and radiator, the utility model adopts the cooling liquid convection heat dissipation method to replace the traditional air convection heat dissipation method, and the heat dissipation efficiency is further greatly enhanced, making the LED lamp heat dissipation structure more suitable for high-power working conditions.

(2) The heat dissipation structure of an LED lamp according to the utility model has a simple structure, a reasonable design and high heat dissipation efficiency. By providing a spiral heat dissipation piece on the lower surface of the heat dissipation plate, the heat dissipation of the LED light can be greatly increased by the spiral heat dissipation piece. The contact area between the heat dissipation structure and the cooling liquid in the casing improves the heat dissipation efficiency of the LED heat dissipation device with the same volume.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back.

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of an LED lamp of the present invention.

In the figure: 100, LED lamp; 10, lampshade; 11, protruding ring; 20, LED lamp bead; 30, substrate; 31, threaded hole; 40, heat dissipation structure of LED lamp; 41, shell; 411, card slot; 412, Liquid inlet; 413, liquid outlet; 42, cooling plate; 421, groove; 422, through hole; 43, spiral cooling piece; 44, one-way valve; 45, radiator; 46, coolant power pump; 47, bottom plate; 50, threaded parts; 60, sealing parts.

Detailed ways

Below in conjunction with the specific embodiment in accompanying drawing 1, the utility model is further described.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1 , the utility model provides an LED lamp. The LED lamp 100 includes a lampshade 10 , LED lamp beads 20 , a substrate 30 , an LED lamp heat dissipation structure 40 , a threaded part 50 and a sealing part 60 .

A protruding ring 11 is provided at the end of the lampshade 10 .

The LED lamp heat dissipation structure 40 includes a housing 41 , a heat dissipation plate 42 , a spiral heat dissipation element 43 , a one-way valve 44 , a radiator 45 , a coolant power pump 46 and a bottom plate 47 . The housing 41 is provided with a card slot 411 , a liquid inlet 412 and a liquid outlet 413 . More specifically, the upper part of the housing 41 is provided with a card slot 411 , and the lower part of the housing 41 is provided with a liquid inlet 412 and a liquid outlet 413 . The heat dissipation plate 42 is fixed inside the housing 41 , the upper surface of the heat dissipation plate 42 is provided with a groove 421 , and the lower surface of the heat dissipation plate 42 is fixed with a spiral heat dissipation element 43 . The outer surface of the spiral heat sink 43 is provided with a corrugated structure.

The spiral heat sink 43 is provided on the lower surface of the heat sink 42, and the contact area between the heat dissipation structure of the LED lamp and the cooling liquid in the housing 41 can be greatly increased by the spiral heat sink, so that the heat dissipation efficiency of the LED heat sink with the same volume can be improved. improve. More specifically, a corrugated structure is provided on the outer surface of the spiral heat dissipation member 43 to further increase the contact area between the heat dissipation structure of the LED lamp and the cooling liquid and improve the heat dissipation efficiency.

A coolant power pump 46, a radiator 45 and a one-way valve 44 are connected between the liquid inlet 412 and the liquid outlet 413. The liquid port 413 communicates. The slot 411 fits with the protruding ring 11 located at the end of the lampshade 10 , the groove 421 fits with the base plate 30 , and the LED lamp bead 20 is fixed on the base plate 30 . The bottom plate 47 is fixed on the bottom of the housing 41 .

The cooling liquid power pump 46 is used to provide power for the circulating flow of the cooling liquid between the liquid inlet 412 and the liquid outlet 413 . The one-way valve 44 is used to ensure the one-way flow of cooling liquid between the liquid inlet 412 and the liquid outlet 413 . The shell 41 is snap-connected with the lampshade 10, making installation and disassembly very convenient. Compared with the traditional way of heat dissipation through air convection, the utility model adopts the way of cooling liquid convection heat dissipation, and the heat dissipation efficiency is further greatly enhanced, making the heat dissipation structure of the LED lamp more suitable for high-power working conditions. Understandably, the one-way valve 44 can be omitted.

The base plate 30 is provided with a threaded hole 31 , and the bottom of the groove 421 is provided with a through hole 422 , the threaded hole 31 cooperates with the through hole 422 , and the screw member 50 is threadedly connected with the base plate 30 through the through hole 422 and the threaded hole 31 . The substrate 30 can be designed as an aluminum substrate.

The substrate 30 is installed in the groove 421 on the upper surface of the heat sink 42 through the screw 50 , and the screw 50 is screwed with the substrate 30 through the through hole 422 and the threaded hole 31 . In this way, the distance between the LED lamp bead 20 and the lampshade 10 can be freely adjusted according to the size of the room, so that the brightness and uniformity of the LED lamp 100 are optimal.

The sealing member 60 is interposed between the threaded member 50 and the cooling plate 42 , and the sealing member 60 is a sealing ring. In order to prevent the cooling liquid installed at the bottom of the casing 41 from entering the groove 421 on the upper surface of the heat dissipation plate 42, the utility model is provided with a sealing member 60 between the screw 50 and the heat dissipation plate 42

It can be understood that the shell 41 and the base plate 47 can also be integrally formed, and are collectively referred to as the shell, and the shell 41 and the base plate 47 are disassembled into two pieces for the convenience of processing and cleaning the inside of the shell. On the other hand, only the bottom plate needs to be removed, and the screw 50 can be adjusted to freely adjust the distance between the LED lamp bead 20 and the lampshade 10 .

The utility model provides a heat dissipation structure 100 for an LED lamp. A liquid inlet 412 and a liquid outlet 413 are provided on the casing 41, and a coolant power pump 46 and a cooling liquid power pump 46 are connected between the liquid inlet 412 and the liquid outlet 413. device 45. The utility model adopts the cooling liquid convection heat dissipation method to replace the traditional air convection heat dissipation method, and the heat dissipation efficiency is further greatly enhanced, so that the LED lamp heat dissipation structure 100 is more suitable for high-power working conditions.

The utility model is a LED lamp heat dissipation structure 100, which has a simple structure, reasonable design and high heat dissipation efficiency. The spiral heat dissipation piece 43 is arranged on the lower surface of the heat dissipation plate 42, and the heat dissipation of the LED light can be greatly increased by the spiral heat dissipation piece 43. The contact area between the structure 100 and the coolant in the shell 41 improves the heat dissipation efficiency of the LED heat sink with the same volume.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in any way; any ordinary skilled person in the industry can smoothly implement it as shown in the accompanying drawings and the above description This utility model; however, all those who are familiar with the profession without departing from the scope of the technical solution of the utility model, and make use of the technical content disclosed above to make some changes, modifications and equivalent changes of evolution are all equivalent changes of the utility model. New equivalent embodiments; at the same time, all changes, modifications and evolutions of any equivalent changes made to the above embodiments according to the essential technology of the utility model still belong to the protection scope of the technical solution of the utility model.

Claims (10)

1. A heat dissipation structure of an LED lamp, the heat dissipation structure of the LED lamp is connected with the lampshade in the LED lamp, and is used to absorb the heat of the LED lamp beads in the LED lamp, it is characterized in that: the heat dissipation structure of the LED lamp includes a shell, a heat dissipation plate, spiral radiator, radiator and coolant power pump; The housing is provided with a card slot, a liquid inlet and a liquid outlet, the heat dissipation plate is fixed inside the housing, the upper surface of the heat dissipation plate is provided with grooves, and the lower surface of the heat dissipation plate is fixed with Spiral heat sink, the coolant power pump and radiator are connected between the liquid inlet and the liquid outlet, the card slot matches the protruding ring at the end of the lampshade, the groove matches the The base plate that fixes the LED lamp bead matches. 2. The LED lamp heat dissipation structure according to claim 1, wherein a through hole is provided at the bottom of the groove. 3. A heat dissipation structure for an LED lamp according to claim 1, wherein the heat dissipation structure for the LED lamp further comprises a one-way valve, and the liquid inlet passes through the coolant power pump, the radiator and the one-way valve. The valve communicates with the liquid outlet. 4. The LED lamp heat dissipation structure according to claim 1, characterized in that: the LED lamp heat dissipation structure further comprises a bottom plate, and the bottom plate is fixed to the bottom of the housing. 5. The heat dissipation structure of an LED lamp according to claim 1, wherein the outer surface of the spiral heat dissipation element is provided with a corrugated structure. 6. An LED lamp, the LED lamp includes a lampshade, LED lamp beads, and a substrate, characterized in that: the LED lamp also includes an LED lamp heat dissipation structure; the end of the lampshade is provided with a convex ring; The heat dissipation structure of the LED lamp includes a shell, a heat dissipation plate, a spiral heat sink, a radiator, and a coolant power pump; Inside the casing, grooves are provided on the upper surface of the heat dissipation plate, a spiral heat sink is fixed on the lower surface of the heat dissipation plate, and the cooling liquid power is connected between the liquid inlet and the liquid outlet. For the pump and the heat sink, the card slot is matched with the convex ring, the groove is matched with the base plate, and the LED lamp bead is fixed on the base plate. 7. An LED lamp according to claim 6, characterized in that: said LED lamp further comprises a threaded piece, said base plate is provided with a threaded hole, the bottom of said groove is provided with a through hole, said threaded The hole is matched with the through hole, and the screw member is threadedly connected with the base plate through the through hole and the threaded hole. 8. The LED lamp according to claim 7, characterized in that: the LED lamp further comprises a seal, and the seal is interposed between the screw and the heat sink. 9. An LED lamp as claimed in claim 6, characterized in that: the heat dissipation structure of the LED lamp further comprises a one-way valve, and the liquid inlet is connected with the coolant power pump, the radiator and the one-way valve. The liquid outlet is connected. 10. The LED lamp according to claim 6, wherein the heat dissipation structure of the LED lamp further comprises a bottom plate, and the bottom plate is fixed to the bottom of the housing.