CN221444215U

CN221444215U - LED heat radiation plate

Info

Publication number: CN221444215U
Application number: CN202322479859.2U
Authority: CN
Inventors: 陈凤; 杜露; 赵跃兰; 陈薇; 信潇雅
Original assignee: Shenzhen North South Vision Optoelectronics Co ltd
Current assignee: Shenzhen North South Vision Optoelectronics Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-07-30
Anticipated expiration: 2033-09-12

Abstract

The utility model relates to the technical field of LED heat dissipation, in particular to an LED heat dissipation plate; the LED heat dissipation plate includes: the LED panel comprises an LED panel and a radiating panel main body, wherein the radiating panel main body comprises a connecting part, a cooling liquid flow channel, a radiating hole and a fan port; the LED board is arranged with the radiating plate main body through the connecting part to form a containing cavity, a cooling liquid flow passage is arranged in the containing cavity, and the cooling liquid flow passage is arranged on the bottom plate of the radiating plate main body in a multi-section U shape; a plurality of radiating holes are formed in the side wall of the radiating plate main body, the radiating holes penetrate through the side wall, a fan opening is formed in the middle of the bottom plate of the radiating plate main body, the fan opening penetrates through the bottom plate, a radiating fan is arranged at the fan opening and comprises a rotating shaft and wing-shaped radiating fins, and the wing-shaped radiating fins are circumferentially arranged at the axis of the rotating shaft; the utility model solves the problems that the traditional LED heat dissipation plate cannot achieve the effect of quickly reducing the temperature, and the heat dissipation efficiency is low and unstable.

Description

LED heat radiation plate

Technical Field

The utility model relates to the technical field of LED heat dissipation, in particular to an LED heat dissipation plate.

Background

The LED lamp has the advantages of small volume, low power consumption, long service life, no toxicity, environmental protection and the like, is originally used for outdoor decoration and engineering illumination, and is gradually developed to household illumination at present; because the LED lamp generates a large amount of heat during illumination, especially a high-power LED lamp, if the heat dissipation treatment is not good, the LED lamp cannot stably illuminate, phenomena such as light decay are easy to occur, and the service life of the LED lamp is reduced.

The prior art CN201803139U discloses an LED lamp with a novel heat dissipation plate, which consists of an LED lamp and a heat dissipation plate connected with the LED lamp, wherein the heat dissipation plate is divided into a top layer heat dissipation plate and a bottom layer heat dissipation plate, and the top layer heat dissipation plate is connected with two end parts of the bottom layer heat dissipation plate; the heat dissipation plate is provided with a plurality of groups of bonding pads and a plurality of groups of heat dissipation parts, the bonding pads are connected with the heat dissipation parts, the heat dissipation parts are arranged between two adjacent LED lamps, and two ends of each LED lamp are connected with the bonding pads. The LED lamp has reasonable design structure and good heat dissipation effect, adopts the double-layer heat dissipation plate, increases the number and the size of the welding pads and the heat dissipation parts, improves the heat dissipation area, and ensures that air forms convection, thereby reducing the heat generated during the illumination of the LED lamp and prolonging the service life of the LED lamp.

However, the LED heat dissipation plate of the prior art cannot achieve the effect of rapidly reducing the temperature when the LED lamp is illuminated for a long time, and the problems of low heat dissipation efficiency and unstable heat dissipation efficiency still exist, so that it is necessary to provide an LED heat dissipation plate which rapidly dissipates heat and is stable in heat dissipation.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide an LED heat dissipation plate so as to solve the problems that the conventional LED heat dissipation plate cannot achieve the effect of quickly reducing the temperature, and the heat dissipation efficiency is low and the heat dissipation efficiency is unstable.

The utility model adopts the following technical scheme: an LED heat sink, the LED heat sink comprising: the LED heat dissipation plate comprises an LED plate and a heat dissipation plate main body, wherein the heat dissipation plate main body comprises a connecting part, a cooling liquid flow channel, a heat dissipation hole and a fan port; the LED board is installed with the radiating plate main body through the connecting part to form a containing cavity, a cooling liquid flow passage is arranged in the containing cavity, and the cooling liquid flow passage is arranged on the bottom plate of the radiating plate main body in a multi-section U shape; the cooling plate comprises a cooling plate body, and is characterized in that a plurality of cooling holes are formed in the side wall of the cooling plate body, the cooling holes penetrate through the side wall, a fan opening is formed in the middle of a bottom plate of the cooling plate body, the fan opening penetrates through the bottom plate, a cooling fan is arranged at the fan opening and comprises a rotating shaft and wing-shaped cooling fins, and the wing-shaped cooling fins are circumferentially arranged around the axis of the rotating shaft.

Further, the LED board is provided with a mounting hole, the mounting hole is correspondingly arranged at the position of the connecting part of the radiating plate main body, and the mounting hole is matched with the shape of the connecting part.

Further, the connecting portion comprises a connecting column and a limiting column, the bottom of the connecting portion is provided with the limiting column, the diameter of the limiting column is larger than that of the connecting column, and the height of the limiting column is lower than that of the connecting column.

Further, each of the heat dissipation holes has a diameter of between 0.1mm and 0.3 mm.

Further, the heat dissipation holes on the same side wall of the heat dissipation plate main body are uniformly distributed.

Further, the side wall of the heat radiation plate main body is further provided with a dust screen, and the dust screen is detachably connected with the side wall.

Further, a strip-shaped heat dissipation port is further formed in the bottom plate of the heat dissipation plate main body, and the strip-shaped heat dissipation port is arranged at two sides of the bottom plate, which are close to the connecting portion.

Further, a heat conduction silica gel sheet is arranged on the bottom surface of one side, far away from the LED board, of the heat dissipation plate main body.

Further, the end part of the cooling liquid flow channel is a cooling liquid adding hole, and the cooling liquid adding hole is arranged on the bottom plate of the cooling plate main body and is used for adding cooling liquid into the cooling liquid flow channel.

Further, the heat dissipation plate body is made of a metal plate.

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

1. According to the utility model, the cooling liquid flow channel and the cooling fan are arranged on the cooling plate main body, the plurality of cooling holes are arranged on the side wall of the cooling plate main body, the cooling liquid can absorb heat emitted by the LED plate by injecting the cooling liquid into the cooling liquid flow channel, and simultaneously, the heat generated by the operation of the LED plate in the cooling plate main body is emitted from the cooling holes by matching with the rotation of the cooling fan, namely, the effect of quickly exchanging heat between internal hot air and external air of the cooling plate main body is realized, so that the purpose of quickly cooling the LED plate is achieved, and the cooling liquid and the cooling fan circulated in the cooling liquid flow channel continuously rotate, so that the cooling plate main body can continuously and stably dissipate heat.

2. According to the utility model, the limit column is arranged at the joint of the LED plate and the radiating plate main body, namely the mounting hole is sleeved on the connecting column to limit the position of the limit column, so that the LED plate is fixedly connected with the radiating plate main body; after the LED plate and the radiating plate main body are installed, the inside of the LED plate and the radiating plate main body are provided with accommodating spaces with the same height as the limiting columns, so that the cooling liquid flow channel and the radiating fan are provided with sufficient heat exchange spaces.

The specific technical scheme and the beneficial effects of the utility model are described in detail in the following detailed description with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the whole structure of an LED heat sink of the present utility model;

FIG. 2 is a schematic view of an LED board structure of an LED heat dissipating plate according to the present utility model;

Fig. 3 is a schematic diagram of a main structure of a heat dissipating plate of an LED heat dissipating plate according to the present utility model.

In the figure: 1. an LED board; 11. a mounting hole; 2. a heat dissipation plate main body; 21. a connection part; 211. a connecting column; 212. a limit column; 22. a cooling liquid flow passage; 23. a heat radiation hole; 24. a fan port; 25. a heat radiation fan; 251. a rotating shaft; 252. wing type radiating fin; 26. and the strip-shaped heat dissipation port.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present application, the technical solutions of 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 apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model; furthermore, unless specifically stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly so that one of ordinary skill in the art would understand the meaning of the terms described above in a specific fashion within the present utility model.

Referring to fig. 1-3, an LED heat dissipation plate of the present utility model includes: the LED panel 1 and the heat dissipation plate main body 2, wherein the heat dissipation plate main body 2 comprises a connecting part 21, a cooling liquid flow passage 22, a heat dissipation hole 23 and a fan port 24; the LED board 1 is installed with the heat dissipation plate main body 2 through the connecting part 21 to form a containing cavity, a cooling liquid flow channel 22 is arranged in the containing cavity, and the cooling liquid flow channel 22 is arranged on the bottom plate of the heat dissipation plate main body 2 in a multi-section U shape; the side wall of the heat dissipation plate main body 2 is provided with a plurality of heat dissipation holes 23, a plurality of heat dissipation holes 23 penetrate through the side wall, a fan opening 24 is formed in the middle of a bottom plate of the heat dissipation plate main body 2, the fan opening 24 penetrates through the bottom plate, a heat dissipation fan 25 is arranged at the fan opening 24, the heat dissipation fan 25 comprises a rotating shaft 251 and wing-shaped cooling fins 252, and the wing-shaped cooling fins 252 are circumferentially arranged along the axis center of the rotating shaft 251.

Specifically, the cooling fluid flow channel 22 is disposed in the accommodating cavity to protect the cooling fluid flow channel 22, in a preferred embodiment, the cooling fan 25 is an ultra-thin fan, three airfoil cooling fins 252 are circumferentially disposed around the axis of the rotating shaft 251, and the airfoil cooling fins 252 rotate around the rotating shaft 251.

According to the utility model, the cooling liquid flow channel 22 and the cooling fan 25 are arranged on the cooling plate main body 2, the plurality of cooling holes 23 are arranged on the side wall of the cooling plate main body 2, cooling liquid is injected into the cooling liquid flow channel 22, the cooling liquid can absorb heat emitted by the LED board 1, and simultaneously, the heat generated by the operation of the LED board 1 in the cooling plate main body 2 is emitted from the cooling holes 23 in cooperation with the rotation of the cooling fan 25, so that the effect of quickly exchanging heat between internal hot air and external air of the cooling plate main body 2 is realized, and the purpose of quickly cooling the LED board 1 is achieved.

Further, the LED board 1 is provided with mounting holes 11, the mounting holes 11 are disposed corresponding to the positions of the connection portions 21 of the heat dissipation plate main body 2, and the mounting holes 11 are adapted to the shapes of the connection portions 21.

Specifically, in the preferred embodiment, the LED board 1 is provided with four mounting holes 11, and on the heat dissipating plate body 2, the connection portions 21 are provided with four corresponding to the mounting holes 11.

Further, the connection portion 21 includes a connection post 211 and a limit post 212, the bottom of the connection portion 21 is provided with the limit post 212, the diameter of the limit post 212 is larger than that of the connection post 211, and the height of the limit post 212 is lower than that of the connection post 211.

In a preferred embodiment, the connection post 211 is disposed in a direction close to the LED board 1, the limit post 212 is disposed at the bottom of the connection post 211, the mounting hole 11 is sleeved on the connection post 211 until the limit post 212 is limited, so that the LED board 1 is fixedly connected with the heat dissipation board main body 2, and in a preferred embodiment, the connection post 211 and the mounting hole 11 are in interference fit; by arranging the limit posts 212 at the connection part of the LED board 1 and the heat dissipation plate main body 2, after the LED board 1 and the heat dissipation plate main body 2 are installed, an accommodating space with the same height as the limit posts 212 is formed inside, so that the cooling liquid flow channel 22 and the heat dissipation fan 25 have sufficient heat exchange space.

Further, the diameter of each heat dissipation hole 23 is between 0.1mm and 0.3mm, the heat dissipation holes 23 on the same side wall of the heat dissipation plate main body 2 are uniformly distributed, in a preferred embodiment, the diameter of each heat dissipation hole 23 is 0.3mm, and the heat dissipation holes 23 are equidistantly arranged on the side wall of the heat dissipation plate main body 2.

Further, the side wall of the heat dissipation plate main body 2 is further provided with a dust screen, and the dust screen is detachably connected with the side wall. Set up the dust cover on the lateral wall of heating panel main part 2 to reduce the heating panel and hold the entering of intracavity dust, realize dustproof protection, avoid holding intracavity dust and block up the thermovent, thereby influence the radiating effect.

Further, a strip-shaped heat dissipation port 26 is further provided on the bottom plate of the heat dissipation plate main body 2, and the strip-shaped heat dissipation port 26 is provided on two sides of the bottom plate close to the connection portion.

Specifically, the strip-shaped heat dissipation openings 26 are formed in the bottom plate of the heat dissipation plate main body 2, and the heat dissipation holes 23 formed in the side walls are matched with the heat dissipation plate main body, so that hot air in the heat dissipation plate main body can be fully subjected to heat exchange with outside air.

Further, the heat dissipation plate main body 2 is provided with a heat conduction silica gel piece on a bottom surface of one side far away from the LED board 1, and the heat conduction silica gel piece is provided to reduce contact thermal resistance generated between the heat generating part of the LED board 1 and the contact surface of the heat dissipation plate main body, and has good heat conduction stability and damping and sound absorption effects, so as to reduce noise generated when the heat dissipation fan 25 rotates.

Further, the end of the cooling liquid flow channel 22 is a cooling liquid adding hole, and the cooling liquid adding hole is disposed on the bottom plate of the heat dissipating plate body 2, and is used for adding cooling liquid into the cooling liquid flow channel 22, and the cooling liquid flow channel 22 is filled with cooling liquid by injecting cooling liquid into the cooling liquid adding hole.

Further, the heat dissipating plate body 2 is a metal plate, and in a preferred embodiment, the heat dissipating plate body 2 is an aluminum heat dissipating plate.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

Although the utility model 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An LED heat sink, the LED heat sink comprising: the LED heat dissipation plate comprises an LED plate (1) and a heat dissipation plate main body (2), wherein the heat dissipation plate main body (2) comprises a connecting part (21), a cooling liquid flow passage (22), a heat dissipation hole (23) and a fan port (24); the LED board (1) is mounted with the radiating board main body (2) through the connecting part (21) to form a containing cavity, a cooling liquid flow channel (22) is arranged in the containing cavity, and the cooling liquid flow channel (22) is arranged on the bottom plate of the radiating board main body (2) in a multi-section U shape; be provided with a plurality of louvres (23) on the lateral wall of heating panel main part (2), a plurality of louvres (23) run through the lateral wall sets up, fan mouth (24) set up the bottom plate middle part of heating panel main part (2), fan mouth (24) run through the bottom plate, fan mouth (24) department is provided with radiator fan (25), radiator fan (25) include pivot (251) and wing section fin (252), wing section fin (252) with the axle center circumference setting of pivot (251).

2. An LED cooling plate according to claim 1, characterized in that the LED board (1) is provided with mounting holes (11), the mounting holes (11) are provided corresponding to the positions of the connection parts (21) of the cooling plate main body (2), and the mounting holes (11) are adapted to the shapes of the connection parts (21).

3. An LED cooling plate according to claim 1, characterized in that the connection portion (21) comprises a connection post (211) and a limit post (212), the connection post (211) is arranged in a direction close to the LED board (1), the bottom of the connection portion (21) is provided with the limit post (212), the diameter of the limit post (212) is larger than that of the connection post (211), and the height of the limit post (212) is lower than that of the connection post (211).

4. An LED heat sink according to claim 1, characterized in that the aperture of each heat sink (23) is between 0.1mm and 0.3 mm.

5. An LED heat sink according to claim 1, characterized in that the heat sink holes (23) on the same side wall of the heat sink body (2) are evenly distributed.

6. An LED heat sink as claimed in claim 1, characterized in that the side wall of the heat sink body (2) is further provided with a dust screen, which dust screen is detachably connected to the side wall.

7. An LED heat sink according to claim 1, characterized in that the bottom plate of the heat sink body (2) is further provided with strip-shaped heat dissipation openings (26), and the strip-shaped heat dissipation openings (26) are provided at positions on both sides of the bottom plate near the connection portion.

8. An LED heat sink according to claim 1, characterized in that the heat sink body (2) is provided with a thermally conductive silicone sheet on the bottom surface of the side remote from the LED board (1).

9. An LED heat sink according to claim 1, characterized in that the end of the coolant flow channel (22) is a coolant addition hole provided in the bottom plate of the heat sink body (2) for adding coolant to the coolant flow channel (22).

10. An LED heat sink according to claim 1, characterized in that the heat sink body (2) is a metal plate.