Heat dissipation structure for lamp

Abstract

The utility model discloses a heat dissipation structure for a lamp. The heat dissipation structure comprises a shell and a substrate. A plurality of heat dissipation holes are formed in the two sides of the shell; an erecting structure is arranged between the substrate and the shell; a heat dissipation structure is arranged on the substrate, the heat dissipation structure comprises a flow guide bin arranged on the rear side of the substrate, and an air outlet and an air inlet are formed in the flow guide bin; a cooling fan and two groups of cooling fins are arranged in the flow guide bin; a flow guide pipe is arranged on the base plate, and the two ends of the flow guide pipe extend to the flow guide bin. A plurality of through grooves are formed below the end, corresponding to the air outlet, of the flow guide pipe, and a plurality of second through grooves are formed below the end, corresponding to the air inlet, of the flow guide pipe. According to the utility model, the air blown out by the fan is conveyed through the snakelike coiled flow guide pipe, and heat generated on the substrate is taken away in the process, so that the phenomenon that the heat cannot flow on the substrate is avoided; heat is conducted into the flow guide bin and dissipated through the multiple sets of heat dissipation fins, the contact area with air is increased, and therefore the heat dissipation effect is good, and the substrate is not prone to damage.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and in particular to a heat dissipation structure for lamps. Background Art

[0002] LED lamps refer to lamps that use light-emitting diodes as light sources. Generally, silver glue or white glue is used to solidify the semiconductor LED onto the bracket, and then silver wire or gold wire is used to connect the chip and circuit board. The surrounding area is sealed with epoxy resin to protect the internal core wire, and finally the outer shell is installed. LED lamps have the advantages of energy saving, long life, environmental protection, and shock resistance.

[0003] LED lamps are equipped with driving power supplies, light-emitting elements, etc., all of which are set on a PCB substrate and separated by plastic panels. However, in actual use, the PCB substrate will generate a large amount of heat, which cannot be conducted out in time, causing the lamp to overheat and overload, and remain at a high operating temperature for a long time, which will affect the service life of the lamp over time.

[0004] In the prior art, heat dissipation of lamps is usually achieved by opening heat dissipation holes on the housing, but the air circulation inside the lamp is poor, resulting in heat being unable to escape from the heat dissipation holes, which has defects and room for improvement. Utility Model Content

[0005] The utility model aims to solve the technical problem existing in the above-mentioned prior art that the heat dissipation of the lamp is poor due to the lack of air circulation, and provides a heat dissipation structure for the lamp.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a heat dissipation structure for a lamp, comprising a shell and a substrate; a plurality of heat dissipation holes are provided on both sides of the shell; a mounting structure is provided between the substrate and the shell;

[0007] A heat dissipation structure is provided on the substrate, and the heat dissipation structure includes a guide bin provided on the rear side of the substrate, the guide bin has a U-shaped cross-section, and an air outlet and an air inlet are respectively provided on the guide bin; a heat dissipation fan is provided at one end of the guide bin close to the air outlet, and two groups of heat dissipation fins are provided at one end of the guide bin away from the heat dissipation fan; a guide pipe is provided on the substrate, both ends of the guide pipe extend to the guide bin, and one end is opposite to the air outlet, and the other end is opposite to the air inlet; a plurality of through grooves are provided below the end of the guide pipe corresponding to the air outlet, and a plurality of through grooves 2 are provided below the end of the guide pipe corresponding to the air inlet.

[0008] Preferably, the erection structure comprises support plates provided on both sides of the shell, and the cross-sections of the support plates are both L-shaped.

[0009] Preferably, the air inlet is located between two groups of heat dissipation fins.

[0010] Preferably, the flow guide tube is coiled on the base plate in a serpentine shape.

[0011] Preferably, the flow guide pipe is composed of a plurality of U-shaped hollow tubes, and the widths of adjacent hollow tubes are different.

[0012] Preferably, a rotating shaft is provided at the middle end of the heat dissipation fan, and the upper and lower ends of the rotating shaft are rotatably connected to the guide bin.

[0013] Compared with the prior art, the utility model has the following advantages: the wind blown out by the fan is transported through the serpentine-coiled guide pipe, and in the process the heat generated on the substrate is taken away to prevent it from being unable to flow on the substrate; the heat is conducted to the guide bin and dissipated through multiple groups of heat dissipation fins, thereby increasing the area in contact with the air and achieving a turbulent effect, thereby achieving good heat dissipation effect and preventing the substrate from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the shell of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the diversion bin of the utility model.

[0017] Figure 4 It is a side perspective view of the diversion bin of the utility model.

[0018] Figure 5 It is a schematic diagram of the structure of the flow guide pipe of the utility model.

[0019] As shown in the figure: 1. Shell, 2. Base plate, 3. Heat dissipation holes, 4. Support plate, 5. Air guide compartment, 6. Air outlet, 7. Air inlet, 8. Cooling fan, 9. Cooling fins, 10. Air guide pipe, 11. Through slot, 12. Through slot two. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Embodiment 1, in combination with the attached Figure 1 , 2 A heat dissipation structure for a lamp includes a housing 1 and a substrate 2. A driving power source, a light-emitting element, etc. are mounted on the substrate 2, and heat is dissipated during use. A plurality of heat dissipation holes 3 are provided on both sides of the housing 1 to exchange air inside and outside, thereby playing a basic heat dissipation role.

[0022] Combined with Figure 2A mounting structure is provided between the substrate 2 and the shell 1; the mounting structure includes support plates 4 provided on both sides of the shell 1, and the cross-section of the support plates 4 is L-shaped, which can limit the substrate 2 and mount it in the shell 1 to reduce the contact area with other components, which is also beneficial to heat dissipation.

[0023] Combined with Figure 1-5 A heat dissipation structure is provided on the substrate 2, and the heat dissipation structure includes a guide chamber 5 provided on the rear side of the substrate 2. The guide chamber 5 has a U-shaped cross-section and an opening for conducting heat out. An air outlet 6 and an air inlet 7 are respectively provided on the guide chamber 5 for connecting the guide pipe 10 mentioned later; a heat dissipation fan 8 is provided at one end of the guide chamber 5 close to the air outlet 6, and a rotating shaft is provided at the middle end of the heat dissipation fan 8. The upper and lower ends of the rotating shaft are rotatably connected to the guide chamber 5, so that rotational turbulence and air outlet can be achieved in the guide chamber 5. Two groups of heat dissipation fins 9 are provided at one end of the guide chamber 5 away from the heat dissipation fan 8 for increasing the contact area with the hot air and playing a role in heat exchange. The air inlet 7 is located between the two groups of heat dissipation fins 9, so as to prevent the derived air from being blocked by the heat dissipation fins 9.

[0024] Combined with Figure 1 , 3 , 5, a guide tube 10 is provided on the substrate 2, and the guide tube 10 is coiled on the substrate 2 in a serpentine shape. Compared with a straight shape, it can increase the contact area with the substrate 2, so as to facilitate taking away the heat generated on the substrate 2; both ends of the guide tube 10 extend to the guide bin 5, and one end is opposite to the air outlet 6, and the other end is opposite to the air inlet 7; a plurality of through grooves 11 are provided under the end of the guide tube 10 corresponding to the air outlet 6, and a plurality of through grooves 12 are provided under the end of the guide tube 10 corresponding to the air inlet 7; the wind blown out by the cooling fan 8 can be circulated through the through grooves 11, the through grooves 12, the air outlet 6 and the air inlet 7, and the heat on the substrate 2 is taken away when circulated to the substrate 2, so as to achieve efficient heat dissipation.

[0025] Combined with Figure 1 , 5 The guide tube 10 is composed of a plurality of U-shaped hollow tubes, and the widths of adjacent hollow tubes are different; thus, when the air flows, the flow rate and activity will change according to the changes in the size and inner diameter of the hollow tubes, thereby further improving the air flow efficiency.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A heat dissipation structure for a lamp, comprising a housing (1) and a substrate (2); characterized in that: A plurality of heat dissipation holes (3) are provided on both sides of the shell (1); a mounting structure is provided between the base plate (2) and the shell (1); The base plate (2) is provided with a heat dissipation structure, which comprises a guide chamber (5) provided on the rear side of the base plate (2), the guide chamber (5) having a U-shaped cross section, and the guide chamber (5) is provided with an air outlet (6) and an air inlet (7) respectively; a heat dissipation fan (8) is provided at one end of the guide chamber (5) close to the air outlet (6), and two groups of heat dissipation fins (9) are provided at one end of the guide chamber (5) away from the heat dissipation fan (8); a guide pipe (10) is provided on the base plate (2), both ends of the guide pipe (10) extend to the guide chamber (5), one end is opposite to the air outlet (6), and the other end is opposite to the air inlet (7); a plurality of through grooves (11) are provided below the end of the guide pipe (10) corresponding to the air outlet (6), and a plurality of through grooves (12) are provided below the end of the guide pipe (10) corresponding to the air inlet (7).

2. The heat dissipation structure for a lamp according to claim 1, characterized in that: The erection structure comprises support plates (4) provided on both sides of the housing (1), and the cross-sections of the support plates (4) are all L-shaped.

3. The heat dissipation structure for a lamp according to claim 1, characterized in that: The air inlet (7) is located between two groups of heat dissipation fins (9).

4. The heat dissipation structure for a lamp according to claim 1, characterized in that: The flow guide tube (10) is coiled on the base plate (2) in a serpentine shape.

5. The heat dissipation structure for a lamp according to claim 1, characterized in that: The flow guide pipe (10) is composed of a plurality of U-shaped hollow tubes, and the widths of adjacent hollow tubes are different.

6. The heat dissipation structure for a lamp according to claim 1, characterized in that: A rotating shaft is provided at the middle end of the heat dissipation fan (8), and the upper and lower ends of the rotating shaft are both rotatably connected to the guide bin (5).

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