CN209169191U - A kind of heat radiating type aluminum substrate - Google Patents

Abstract

The utility model specifically discloses a kind of heat radiating type aluminum substrate, including aluminium sheet and LED light group, the LED light group is electrically connected at the top of aluminium sheet, and the aluminium sheet bottom is equipped with thermally conductive sheet；The aluminium sheet and thermally conductive sheet passes through fixed glue connection；The thermally conductive sheet bottom is uniformly provided with several longitudinal radiating fins；The bottom of the thermally conductive sheet is additionally provided with several lateral heat dissipation fins；Several lateral heat dissipation fin separations are uniformly socketed on several longitudinal radiating fins；Filled with fixed glue in the confined space that several longitudinal radiating fins and lateral heat dissipation fin are formed；The longitudinal direction radiating fin is fixedly connected with lateral heat dissipation fin by fixed glue.The utility model good heat dissipation effect can effectively extend the service life of LED light.

Description

A heat-dissipating aluminum substrate

technical field

The utility model relates to the technical field of aluminum substrates, in particular to a heat dissipation type aluminum substrate.

Background technique

The LED aluminum substrate is a printed circuit board, but because the LED generates a large amount of heat, the circuit board for LED lamps is generally an aluminum substrate, which can conduct heat quickly. The circuit boards for other equipment or electrical appliances are still glass fiber boards. The existing aluminum substrates During the application process, when the high-power device is working, the heat generated by the aluminum substrate due to the LED lamp beads cannot be dissipated in time, so that the temperature of the aluminum substrate rises rapidly until the LED is in a high temperature state for a long time, which is very easy to damage the chip. A failure, or "dead light" condition, results in a low lifespan.

Utility model content

The above technical problem to be solved by the present invention is to provide a heat-dissipating aluminum substrate.

A heat-dissipating aluminum substrate includes an aluminum plate and an LED lamp group, the LED lamp group is electrically connected to the top of the aluminum plate, and the bottom of the aluminum plate is provided with a heat-conducting sheet; the aluminum plate and the heat-conducting sheet are connected by fixing glue; The bottom of the heat-conducting sheet is evenly provided with a plurality of longitudinal heat dissipation fins; the bottom of the heat-conducting sheet is also provided with a plurality of transverse heat dissipation fins; the plurality of the transverse heat dissipation fins are evenly spaced and sleeved on the plurality of the longitudinal heat dissipation fins; Fixing glue is filled in the closed space formed by a plurality of the longitudinal heat dissipation fins and the horizontal heat dissipation fins; the longitudinal heat dissipation fins and the lateral heat dissipation fins are fixedly connected by the fixing glue.

Preferably, a plurality of bumps are provided at the two end surfaces of the lateral heat dissipation fins protruding from the longitudinal heat dissipation fins. The bumps can increase the contact area between the lateral heat dissipation fins and the air, and enhance the heat dissipation efficiency of the lateral heat dissipation fins.

Preferably, the top of the heat-conducting sheet is provided with a clip slot for clipping the lampshade near the edge of the aluminum plate. Easy to install shades to protect the LED lights.

Preferably, the LED light groups are evenly arranged around the center of the aluminum plate.

Preferably, the fixing adhesive is a thermally conductive, room temperature curing silicone adhesive sealant. It is beneficial to conduct the heat generated by the aluminum substrate to the heat dissipation fins in time, so as to ensure that the aluminum substrate works within a certain temperature range and avoid the "dead light" situation.

Preferably, the longitudinal heat dissipation fins have a rectangular structure; and the lateral heat dissipation fins have a circular structure. It is convenient to fix the lateral heat dissipation fins on the vertical heat dissipation fins.

Beneficial effects: The utility model facilitates the timely transfer of the heat of the aluminum plate to the heat dissipation fins by providing a heat-conducting fin between the aluminum plate and the heat dissipation fins; ensuring that the aluminum plate works within a normal temperature range, and the heat dissipation fins include longitudinal heat dissipation fins and horizontal heat dissipation fins. The heat dissipation fins can effectively speed up the heat dissipation efficiency and prevent the LED light group from working at high temperature for a long time, thereby prolonging the service life of the LED light group. The vertical heat dissipation fins and the horizontal heat dissipation fins are filled with fixing glue, which overcomes the problem of airborne heat dissipation. The disadvantage of slow heat transfer.

Description of drawings

FIG. 1 is a schematic structural diagram of a heat-dissipating aluminum substrate according to the present invention.

FIG. 2 is a top view of a heat-dissipating aluminum substrate according to the utility model.

Fig. 3 is the enlarged schematic diagram of the place A in Fig. 1 of the utility model

In the picture: 1-aluminum plate; 2-heat-conducting sheet; 3-LED light group; 4-vertical cooling fins; 5-horizontal cooling fins; 6-card slot; 7-fixing glue; 8-bump.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings.

Example 1

As shown in Figures 1 to 3, the present invention provides a heat-dissipating aluminum substrate, comprising an aluminum plate 1 and an LED lamp group 3, the LED lamp group is electrically connected to the top of the aluminum plate 1, and the bottom of the aluminum plate 1 is provided with a heat-conducting sheet 2; 1 and the heat-conducting sheet 2 are connected by a fixing glue 7; the bottom of the heat-conducting sheet 2 is evenly provided with 7 longitudinal heat-dissipating fins 4; the bottom of the heat-conducting sheet 2 is also provided with four lateral heat-dissipating fins 5; the four lateral heat-dissipating fins 5 are spaced It is evenly sleeved on the 7 longitudinal heat dissipation fins 4; the heat of the aluminum plate 1 can be transferred to the heat dissipation fins in time by providing a heat conduction fin 2 between the aluminum plate 1 and the heat dissipation fins; to ensure that the aluminum plate 1 is in the normal temperature range The heat dissipation fins include longitudinal heat dissipation fins 4 and horizontal heat dissipation fins 5, which can effectively speed up the heat dissipation efficiency and prevent the LED lamp group 3 from working at high temperature for a long time, thereby prolonging the service life of the LED lamp group 3. The longitudinal heat dissipation fins The sealed space formed by the fins 4 and the lateral cooling fins 5 is filled with fixing glue 7; the vertical cooling fins 4 and the lateral cooling fins 5 are fixedly connected by the fixing glue 7, which overcomes the shortcoming of slow heat transfer in the air; the lateral cooling fins The two ends of the sheet 5 protrude from the longitudinal heat dissipation fins 4 are provided with a number of bumps 8, the bumps 8 can increase the contact area between the lateral heat dissipation fins 5 and the air, and enhance the heat dissipation efficiency of the lateral heat dissipation fins 5; The top of the aluminum plate 1 is provided with a slot 6 for clamping the lampshade, which is convenient for installing the lampshade to protect the LED lamp group 3; the LED lamp group 3 is evenly arranged around the center of the aluminum plate 1; The silicone adhesive sealant is beneficial to conduct the heat generated by the aluminum substrate to the heat dissipation fins in time to ensure that the aluminum substrate works within a certain temperature range and avoid the occurrence of "dead lights"; the longitudinal heat dissipation fins 4 are rectangular structures; The lateral heat dissipation fins 5 have a circular structure, which is convenient for fixing the lateral heat dissipation fins 5 on the vertical heat dissipation fins 4 .

Of course, the above only expresses a certain embodiment of the present invention, and its description is relatively detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. Numerous changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (6)

1. a kind of heat radiating type aluminum substrate, including aluminium sheet (1) and LED light group (3), the LED light group are electrically connected at aluminium sheet (1) Top, which is characterized in that aluminium sheet (1) bottom be equipped with thermally conductive sheet (2)；The aluminium sheet (1) and thermally conductive sheet (2) passes through Fixed glue (7) connection；Described thermally conductive sheet (2) bottom is uniformly provided with several longitudinal radiating fins (4)；The thermally conductive sheet (2) Bottom is additionally provided with several lateral heat dissipation fins (5)；Several lateral heat dissipation fin (5) intervals are uniformly socketed on several described vertical To on radiating fin (4)；Filling in the confined space that several longitudinal radiating fins (4) and lateral heat dissipation fin (5) are formed There are fixed glue (7)；The longitudinal direction radiating fin (4) passes through fixed glue (7) with lateral heat dissipation fin (5) and is fixedly connected.

2. a kind of heat radiating type aluminum substrate according to claim 1, which is characterized in that the two of the lateral heat dissipation fin (5) End face, which is stretched out at longitudinal radiating fin (4), is equipped with several convex blocks (8).

3. a kind of heat radiating type aluminum substrate according to claim 1, which is characterized in that the top of the thermally conductive sheet (2) is close Aluminium sheet (1) edge is equipped with the card slot (6) for clamping lampshade.

4. a kind of heat radiating type aluminum substrate according to claim 1, which is characterized in that the LED light group (3) surrounds aluminium sheet (1) center is uniformly arranged.

5. a kind of heat radiating type aluminum substrate according to claim 1, which is characterized in that the fixation glue (7) is using thermally conductive Type, room temperature curing organosilicon joint sealant.

6. a kind of heat radiating type aluminum substrate according to claim 1, which is characterized in that the longitudinal direction radiating fin (4) is square Shape structure；The lateral heat dissipation fin (5) is circular configuration.