CN205331842U - LED lamp strip with heat dissipation function - Google Patents

Abstract

The utility model discloses a LED lamp strip with heat dissipation function, which comprises a circuit board, a plurality of LEDs arranged on the circuit board and a heat dissipation plate; the circuit board is provided with a first through hole used for being connected with the heat dissipation plate; the heat dissipation plate is provided with a second through hole used for being connected with the circuit board; the circuit board is provided with a positive power supply jack and a negative power supply jack; the positive electrode of the LED is electrically connected with the positive power supply jack; the negative electrode of the LED is electrically connected with the negative power supply jack; the heat dissipation plate is provided with a heat conduction layer, a heat dissipation layer and a waterproof layer; the circuit board is connected with the heat dissipation plate, so that heat generated by the LED can be released in time, and the service life of the LED lamp bar is prolonged; the circuit board and the heat dissipation plate can be connected by screws by arranging the first through hole on the circuit board and the second through hole on the heat dissipation plate, so that the circuit board and the heat dissipation plate are convenient to disassemble and assemble; through set up heat-conducting layer, heat dissipation layer and waterproof layer on the heating panel, the heat-conducting layer can distribute away heat transmission to the heat dissipation layer.

Description

A LED light bar with heat dissipation function

technical field

The utility model relates to the field of display and lighting, in particular to an LED light bar with heat dissipation function.

Background technique

LED light strip is a solid-state semiconductor device that can convert electrical energy into visible light. It can directly convert electricity into light. LED light strips are connected by multiple LEDs; and because LEDs generate a lot of heat , It is easy to cause the LED light bar to overheat and reduce the life of the LED light bar.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings, and provide an LED light bar with heat dissipation function.

In order to achieve the above object, the specific scheme of the utility model is as follows: a LED light bar with heat dissipation function, including a circuit board, a plurality of LEDs and a heat dissipation plate arranged on the circuit board; The first through hole for board connection; the heat dissipation plate is provided with a second through hole for connecting with the circuit board; the circuit board is provided with a positive power jack and a negative power jack; the positive pole of the LED and the positive power jack The hole is electrically connected; the negative electrode of the LED is electrically connected to the negative power supply jack; the heat dissipation plate is provided with a heat conduction layer, a heat dissipation layer and a waterproof layer.

The utility model is further configured that the circuit board is an aluminum board.

The utility model is further configured that the material of the heat conducting layer is copper.

The utility model is further provided that the heat dissipation layer is provided with a plurality of ventilation holes.

The utility model is further configured that the air holes are irregularly distributed in the heat dissipation layer.

The utility model is further configured that graphite is provided in the vent holes.

The utility model is further configured that, the bottom of the second through hole is provided with a fixing groove.

The beneficial effects of the utility model are:

1. By connecting the circuit board with the heat sink, the heat generated by the LED can be released in time, which increases the life of the LED light bar.

2. By providing the first through hole on the circuit board and the second through hole on the heat dissipation plate, the circuit board and the heat dissipation plate can be connected by screws, which is convenient for disassembly and assembly.

3. By providing a groove at the bottom of the second through hole, and by cooperating with specific screws, the stability of the connection between the circuit board and the cooling plate is increased.

4. By arranging a heat conduction layer, a heat dissipation layer and a waterproof layer on the heat dissipation plate, the heat conduction layer can transfer heat to the heat dissipation layer for dissipation, and the waterproof layer can prevent water from entering the heat dissipation layer.

Description of drawings

Fig. 1 is a plan view of the utility model;

Fig. 2 is a sectional view of the utility model;

Fig. 3 is the structural representation of screw;

Among them: 1-circuit board; 2-LED; 31-first through hole; 32-second through hole; 321-groove; 41-positive power jack; 42-negative power jack; 5-radiating plate; 51 - thermal conduction layer; 52 - heat dissipation layer; 53 - waterproof layer; 6 - protrusion.

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the scope of implementation of the utility model is not limited thereto.

As shown in Figures 1 to 3; wherein, Figure 2 does not show the positive power jack 41 and the negative power jack 42; a LED light bar with heat dissipation function described in this embodiment includes a circuit board 1. A plurality of LEDs 2 and a heat dissipation plate 5 arranged on the circuit board 1; the circuit board 1 is provided with a first through hole 31 for connecting with the heat dissipation plate 5; The second through hole 32; the circuit board 1 is provided with a positive power jack 41 and a negative power jack 42; the positive pole of the LED2 is electrically connected to the positive power jack 41; the negative pole of the LED2 is connected to the negative power jack The holes 42 are electrically connected; the heat dissipation plate 5 is provided with a heat conduction layer 51 , a heat dissipation layer 52 and a waterproof layer 53 . By connecting the circuit board 1 with the cooling plate 5, the heat generated by the LED 2 can be released in time, which increases the life of the LED light bar; at the same time, in the process of use, as long as the positive power supply jack 41 and the negative power supply jack 42 are connected Connected to the power supply, the LED light bar can be used, which is convenient for users to use; in addition, a heat-conducting layer 51, a heat-dissipating layer 52 and a waterproof layer 53 are arranged on the heat dissipation plate 5, so that the heat generated by the LED 2 can pass through the circuit board 1 The heat is transmitted to the heat conduction layer 51 , and the heat conduction layer 51 transmits the heat to the heat dissipation layer 52 to dissipate. The waterproof layer 53 can prevent water from entering the heat dissipation layer 52 and protect the heat dissipation plate 5 .

In the LED light bar with heat dissipation function described in this embodiment, the circuit board 1 is an aluminum board. Since aluminum has strong thermal conductivity, the use of an aluminum plate as the circuit board 1 in this embodiment can effectively conduct heat.

In the LED light bar with heat dissipation function described in this embodiment, the material of the heat conduction layer 51 is copper. Since copper has strong thermal conductivity, the copper plate used as the heat conduction layer 51 in this embodiment can effectively conduct heat; at the same time, the material of the heat conduction layer 51 can also be aluminum, which also has strong heat conductivity.

In the LED light bar with heat dissipation function described in this embodiment, the heat dissipation layer 52 is provided with a plurality of ventilation holes. Providing a plurality of air holes in the heat dissipation layer 52 can enhance the heat dissipation effect of the heat dissipation plate 5 .

In the LED light bar with heat dissipation function described in this embodiment, the ventilation holes are irregularly distributed in the heat dissipation layer 52 . According to experiments, such a structure has a strong heat dissipation effect.

In the LED light bar with heat dissipation function described in this embodiment, graphite is provided in the vent holes. Since the thermal conductivity of graphite will increase with the increase of temperature, it can even become a heat insulator at extremely high temperature, so graphite has high thermal conductivity, which can increase the heat dissipation effect of the heat dissipation plate 5 .

In the LED light bar with heat dissipation function described in this embodiment, the bottom of the second through hole 32 is provided with a fixing groove 321 . A protrusion 6 is provided at the bottom of the screw. When the screw enters the bottom of the second through hole 32 through the first through hole 31, the protrusion 6 of the screw is clamped with the groove 321 of the second through hole 32, increasing the The stability of the connection between the circuit board 1 and the heat sink 5 .

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the protection of the utility model patent application. within range.

Claims (7)

1. a LED lamp bar with heat sinking function, it is characterised in that: the multiple LED(2 including circuit board (1), being arranged on circuit board (1)) and heat sink (5)；Described circuit board (1) is provided with the first through hole (31) for being connected with heat sink (5)；Described heat sink (5) is provided with the second through hole (32) for being connected with circuit board (1)；Described circuit board (1) is provided with positive supply jack (41) and negative supply jack (42)；Described LED(2) positive pole and positive supply jack (41) be electrically connected；Described LED(2) negative pole and negative supply jack (42) be electrically connected；Described heat sink (5) is provided with heat-conducting layer (51), heat dissipating layer (52) and waterproof layer (53)。

2. a kind of LED lamp bar with heat sinking function according to claim 1, it is characterised in that: described circuit board (1) is aluminium sheet。

3. a kind of LED lamp bar with heat sinking function according to claim 1, it is characterised in that: the material of described heat-conducting layer (51) is copper。

4. a kind of LED lamp bar with heat sinking function according to claim 1, it is characterised in that: described heat dissipating layer (52) is provided with multiple air-vent。

5. a kind of LED lamp bar with heat sinking function according to claim 4, it is characterised in that: the plurality of air-vent is randomly distributed in heat dissipating layer (52)。

6. a kind of LED lamp bar with heat sinking function according to claim 4, it is characterised in that: described air-vent is provided with graphite。

7. a kind of LED lamp bar with heat sinking function according to claim 1, it is characterised in that: the bottom of described second through hole (32) is provided with fixed groove (321)。