CN107246599B - The radiator structure of integral LED solar street light - Google Patents

Abstract

The invention discloses a heat dissipation structure for an integrated LED solar street lamp. The heat dissipation structure includes an aluminum substrate arranged with circuits and lamp beads, and a heat dissipation component. Dissipation, arrange magnetic beads on the back of the bonding surface of the aluminum substrate and the heat dissipation component, and use the magnetic force between the magnetic beads to clamp and fix the aluminum substrate and the heat dissipation component, so that the heat conduction plane between the aluminum substrate and the heat dissipation component is evenly bonded , good heat conduction effect, and simple structure processing, easy assembly, convenient and quick maintenance.

Description

Heat dissipation structure of integrated LED solar street light

technical field

The present invention relates to LED lighting technology, and more specifically relates to a heat dissipation structure of an integrated LED solar street lamp.

Background technique

Solar energy is an inexhaustible source of energy, and solar LED technology is also widely used in street lighting, mainly including discrete LED solar lamps and integrated LED solar lamps. Compared with discrete LED solar lamps, integrated LED solar lamps are easy to operate during installation. You only need to install the lamp pole, then fix the integrated LED solar lamp on the lamp pole, and turn on the lamp switch to complete the installation. Easy and fast.

Through long-term production accumulation and big data analysis, it is found that the main reason for the bad consumption of LED lamps is the poor heat dissipation of LED lamp components, which leads to accelerated light decay and LED dead lights.

In the prior art, silicon grease is usually applied on the LED aluminum substrate, and then the LED aluminum substrate is fastened to the heat sink with screws. For example, in Patent Document 1, a heat conduction pad is provided between the light source aluminum substrate and the heat sink. , The light source aluminum substrate is fixed on the radiator by eight screws. There are also fixed connections using magnetic adsorption. For example, in Patent Document 2, mounting legs are arranged around the circuit board, and magnets are arranged on the mounting legs. However, although these methods have solved the heat dissipation problem to a certain extent, they are still troublesome in production and maintenance. For screw connection, it is necessary to form a small-sized thread structure in the screw hole of the radiator during production, and open all of them during maintenance. Screws, after replacing the damaged parts, re-tighten the screws, which is inconvenient to operate and easy to damage. For the connection method with magnet adsorption on the mounting legs, it is necessary to set the corresponding position of the mounting base plate as ferromagnetic material, and set magnets along the periphery to conduct heat The pad is sandwiched between the circuit board and the mounting base, and it is difficult to ensure a tight fit between the mounting base and the heat conduction pad, and between the heat conduction pad and the circuit board, which affects the heat dissipation effect.

Patent Document 1: CN205316061U.

Patent Document 2: CN205859647U.

Contents of the invention

The technical problem to be solved by the present invention is to provide a heat dissipation structure of an integrated LED solar street lamp with good thermal conductivity, simple manufacture and convenient maintenance.

The present invention is achieved through the following technical solutions: a heat dissipation structure of an integrated LED solar street lamp, comprising: an aluminum substrate on which a circuit and several LED lamp beads are arranged; a heat dissipation component including a heat dissipation substrate and a plurality of heat dissipation fins, It has a first plane and an opposite second plane, the first plane is attached to the front of the aluminum substrate, and the heat sink is evenly arranged on the second plane of the heat dissipation substrate for The heat generated by the aluminum substrate is dissipated to the environment; a fixing assembly is also included, the fixing assembly includes a first magnetic element and a second magnetic element, the first magnetic element is fixedly arranged on the second plane side of the heat dissipation substrate, The second magnetic element is arranged on the back of the aluminum substrate and corresponds to the first magnetic element, so that the aluminum substrate and the second magnetic element can be connected by the magnetic force between the first magnetic element and the second magnetic element. The heat dissipation component is clamped and fixed.

Preferably, the first magnetic element includes magnetic bead group 1, and the second magnetic element includes magnetic bead group 2 having the same number as the magnetic bead group 1.

Preferably, a magnetic bead placement recess corresponding to the magnetic bead group 1 is provided on the second plane of the heat dissipation substrate.

Preferably, the magnetic beads of the magnetic bead group 1 are bonded and fixed on the second plane by silica gel.

Preferably, a magnetic bead position indicator is provided on the back surface of the aluminum substrate for the positioning of the second magnetic bead group.

Preferably, the heat dissipation substrate and the heat dissipation fins are integrally formed of aluminum alloy.

Preferably, the position where the first plane and the aluminum substrate are attached to each other is coated with a silicone grease layer.

Adopting the above-mentioned technical solution of the present invention, the overall structure is simple, the assembly is convenient, the aluminum substrate can be better fastened, and the problem of heat dissipation can be effectively solved. Take it off, unplug the butt wiring on the LED aluminum substrate and the controller, and then you can maintain the light source components of the solar street lamp, easily and quickly.

Description of drawings

Fig. 1 is the outline structure of the integrated LED solar street light of the present invention;

Fig. 2 is a front sectional view of the heat dissipation structure of the integrated LED solar street lamp of the present invention;

3 is a top view of the heat dissipation structure of the integrated LED solar street lamp of the present invention;

Fig. 4 is a bottom view of the heat dissipation structure of the integrated LED solar street light of the present invention.

In the picture:

1. Heat dissipation component; 11. Front side; 12. Back side; 2. Aluminum substrate; 21. Heat dissipation substrate; 22. Heat sink; 23. First plane; 24. Second plane; 25. Concave part for placing magnetic beads; 31. 1 magnetic element; 32, the second magnetic element; 33, the first magnetic bead group; 34, the second magnetic bead group; 4, the LED lamp bead; 41, the position identification of the magnetic bead.

Detailed ways

The technical solutions in the embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The described embodiments are not only part of the embodiments of the present invention, nor are they all implementations, so the following embodiments are only used to illustrate the present invention. Preferred embodiments are not used to limit the protection scope of the present invention.

Example:

As shown in Figure 1, the appearance structure of the integrated LED solar street light of the present invention integrates a solar panel, a lithium battery assembly, a control system, an infrared sensor, and an LED lighting assembly.

As shown in Figures 2-4, the heat dissipation structure of the integrated LED solar street lamp according to the present invention includes a heat dissipation assembly (1), an aluminum substrate (2), and a circuit and a number of LED lamp beads ( 4).

The heat dissipation assembly (1) includes a heat dissipation substrate (21) and several heat dissipation fins (22), the heat dissipation substrate (21) has a first plane (23) and an opposite second plane (24), and the first plane (23) Bonded to the front (11) of the aluminum substrate (2), the heat dissipation fins (22) are evenly arranged on the second plane (24) of the heat dissipation substrate (21), and the aluminum substrate (2 ) transfers the heat generated by the heat dissipation substrate (21), and the heat dissipation substrate (21) dissipates the heat generated by the aluminum substrate (2) to the environment;

The aluminum substrate (2) and the heat dissipation assembly (1) are combined together by a fixing assembly, and the fixing assembly includes a first magnetic element (31) and a second magnetic element (32), and the first magnetic element ( 31) fixedly arranged on the side of the second plane (24) of the heat dissipation substrate (21), the second magnetic element (32) is arranged on the back surface (12) of the aluminum substrate (2), and is connected with the Corresponding to the first magnetic element (31), the polarity of the first magnetic element (31) and the second magnetic element (32) are opposite, and the first magnetic element (31) and the second magnetic element The magnetic force between (32) clamps and fixes the aluminum substrate (2) and the heat dissipation component (1).

Further, the first magnetic element (31) includes magnetic bead group one (33), and the second magnetic element (32) includes magnetic bead group two (34) with the same number as the magnetic bead group one (33). ).

Further, the magnetic bead group one (33) and the magnetic bead group two (34) are evenly distributed.

Further, the second plane (24) of the heat dissipation substrate (21) is provided with a magnetic bead placement recess (25) corresponding to the magnetic bead group one (33), and the shape of the recess (25) Match the shape of the magnetic bead so that the magnetic bead is placed in the recess.

Further, the magnetic beads of the magnetic bead group one (33) are bonded and fixed on the second plane (24) by silica gel.

Further, the back side (12) of the aluminum substrate (2) is provided with a magnetic bead position indicator (41), which is used for the positioning of the magnetic bead group two (34). When assembling, the magnetic bead Group two (34) is placed according to the marking on the back side (12) of the aluminum substrate (2), so that magnetic bead group one (33) and magnetic bead group two (34) are mutually adsorbed.

Further, the heat dissipation substrate (21) and the heat dissipation fin (22) are integrally formed by aluminum alloy.

Further, the position where the first plane (23) and the aluminum substrate (2) are attached to each other is coated with a silicone grease layer.

In the heat dissipation structure of the present invention, when assembling, the aluminum substrate and the heat dissipation substrate are aligned so that the corresponding planes fit closely, and then the magnetic beads on the back of the aluminum substrate are placed one by one according to the position marks, and the aluminum substrate can be placed Combined with heat dissipation components, if necessary, a layer of silicone grease can be coated on the position where they are attached to each other to improve heat conduction efficiency.

In the later maintenance and replacement, you only need to forcefully remove the magnetic components on the aluminum substrate from the aluminum substrate, unplug the LED aluminum substrate and the connecting wire on the controller, and then you can maintain the light source components of the solar street light, easily and quickly.

The embodiments of the present invention are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications or replacements made within the design concept of the present invention are included within the protection scope of the present invention .

Claims (3)

1. A heat dissipation structure of an integrated LED solar street light, comprising: An aluminum substrate (2), on which a circuit and a number of LED lamp beads (4) are arranged; The heat dissipation assembly (1) includes an integrally formed aluminum alloy heat dissipation substrate (21) and several heat dissipation fins (22), the heat dissipation substrate (21) has a first plane (23) and an opposite second plane (24), the first A plane (23) is attached to the front side (11) of the aluminum substrate (2), and the heat dissipation fins (22) are evenly arranged on the second plane (24) of the heat dissipation substrate (21). To dissipate the heat generated by the aluminum substrate (2) to the environment; It is characterized in that it also includes a fixing assembly, the fixing assembly includes a first magnetic element (31) composed of magnetic bead group one (33) and a second magnetic element (32) composed of magnetic bead group two (34), the The magnetic beads of the magnetic bead group 1 are fixedly arranged on the side of the second plane (24) of the heat dissipation substrate (21), and the second plane (24) of the heat dissipation substrate (21) is provided with a placement recess , to accommodate magnetic beads corresponding to the magnetic bead group one (33); The second magnetic bead group is arranged on the back side (12) of the aluminum substrate (2) and corresponds to the first magnetic bead group, and the back side (12) of the aluminum substrate (2) is provided with The magnetic bead position identification (41) positioned by the magnetic bead group two (34); The aluminum substrate (2) and the heat dissipation assembly (1) are clamped and fixed by the magnetic force generated by the mutual attraction between the magnetic beads of the magnetic bead group 1 and the corresponding magnetic beads of the magnetic bead group 2, In order to facilitate the transfer of heat generated by the aluminum substrate (2) to the heat dissipation substrate (21) of the heat dissipation assembly (1). 2. The heat dissipation structure of LED solar street lamp according to claim 1, characterized in that, the magnetic beads of the first magnetic bead group (33) are glued and fixed on the second plane (24) by silica gel. 3. The heat dissipation structure of LED solar street lamps according to claim 2, characterized in that a silicone grease layer is coated on the position where the first plane (23) and the aluminum substrate (2) are attached to each other.