Low-attenuation semiconductor lighting module

Abstract

The utility model discloses a low-attenuation semiconductor lighting module which comprises a PCB (printed circuit board) substrate, fixing frames are fixedly connected to the front side wall and the rear side wall of the PCB substrate, the fixing frames are U-shaped, a reflecting cover is fixedly connected to the top of each fixing frame, and a breathable film is fixedly connected to the top of each reflecting cover. Through the arrangement of the PCB substrate, the fixing frame, the reflecting cover, the breathable film, the condensation pipe, the illuminating lamp, the heat dissipation plate, the ventilation groove and the micro fan, heat in the reflecting cover can be quickly conducted out through the combination of the condensation pipe, the heat dissipation plate and the micro fan, normal and good supporting of an internal illuminating set is guaranteed, the heat dissipation efficiency and the heat dissipation capacity of the illuminating module are improved, and the service life of the illuminating module is prolonged. And meanwhile, the light-transmitting, breathable and waterproof thin film is arranged on the reflecting cover, heat dissipation of the interior of the reflecting cover can be accelerated, meanwhile, water drops are prevented from being formed on the lighting module due to power-on and circuit breaking, the safety of the lighting module is improved, and the service life of the lighting module is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor lighting, in particular to a low-loss semiconductor lighting module. Background Art

[0002] Semiconductor LED, also known as light-emitting diode, is the current mainstream lighting source. Semiconductor LED modules are composed of light-emitting diode modules integrated with multiple rows and columns and are widely used. At present, the service life of semiconductor LED modules is mostly due to the heat dissipation problem. At present, the heat dissipation of semiconductor LED modules is mainly carried out through heat sinks. It is easy for the substrate and lighting lamps to have poor heat dissipation and excessive temperature, resulting in a short service life of the lighting module. Moreover, after power-on and circuit-breaking, the lighting module is exposed to the outside and water droplets condense on the lamp, which can easily cause damage to the lighting module. Utility Model Content

[0003] The utility model provides a low-loss semiconductor lighting module, which utilizes a combination of a condenser, a heat sink and a micro fan to quickly extract the heat from the inside of a reflector, ensure the normal and good operation of the internal lighting group, and improve the heat dissipation efficiency and heat dissipation capacity of the lighting module. At the same time, a light-transmitting, breathable and waterproof film is arranged on the reflector, which can also accelerate the heat dissipation inside the reflector and prevent water droplets from forming on the lighting module after power-on and power-off, thereby improving the safety of the lighting module and extending the service life of the lighting module.

[0004] To achieve the above-mentioned purpose, a low-loss semiconductor lighting module is provided, comprising: a PCB substrate, which comprises: a fixing frame fixedly connected to the front and rear side walls of the PCB substrate, the fixing frame is in a "U" shape, the top of the fixing frame is fixedly connected to a reflector, the top of the reflector is fixedly connected to a breathable membrane, the top of the PCB substrate is fixedly connected to a condenser and a lighting lamp, the bottom of the PCB substrate is fixedly connected to a heat sink, the left and right side walls of the heat sink are provided with ventilation slots, and the bottom of the fixing frame is fixedly connected to a micro fan.

[0005] According to the low-loss semiconductor lighting module, the number of the condensing tubes is multiple and evenly distributed in two rows on the PCB substrate.

[0006] According to the low-loss semiconductor lighting module, the lighting lamps are provided in a plurality and are evenly distributed in a single row between two rows of condensing tubes.

[0007] According to the low-loss semiconductor lighting module, the top heat-absorbing end of the condenser tube is located inside the reflector, and the bottom heat-dissipating end of the condenser tube is located inside the ventilation slot, which can quickly guide the heat to both sides.

[0008] According to the low-loss semiconductor lighting module, the number of the micro fans is multiple and evenly distributed at the bottom of the fixing frame, which can quickly dissipate heat from the heat sink and improve the overall heat dissipation efficiency.

[0009] According to the low-attenuation semiconductor lighting module, the breathable membrane is an anti-UV TPU polyurethane optical film. The anti-UV TPU polyurethane optical film has excellent waterproofness, breathability, transparency, and heat and cold resistance. It can block water molecules from entering the interior of the reflector while allowing the light reflected by the reflector to pass through, thereby avoiding the formation of water droplets on the lighting module and causing damage to the lighting module.

[0010] The beneficial effects of the utility model are as follows: by arranging a PCB substrate, a fixing frame, a reflector, a breathable film, a condenser, a lighting lamp, a heat sink, a ventilation slot and a micro fan, and utilizing a combination of the condenser, the heat sink and the micro fan, the heat inside the reflector can be quickly exported to ensure the normal and good operation of the internal lighting group, and the heat dissipation efficiency and heat dissipation capacity of the lighting module. At the same time, a light-transmitting, breathable and waterproof film is arranged on the reflector, which can also accelerate the heat dissipation inside the reflector, and at the same time prevent the formation of water droplets on the lighting module after power-on and power-off, thereby improving the safety of the lighting module and extending the service life of the lighting module.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is a front view of a low-loss semiconductor lighting module of the utility model;

[0014] Figure 2 This is a cross-sectional view of a reflector of a low-loss semiconductor lighting module of the utility model;

[0015] Figure 3 This is a structural diagram of a PCB substrate of a low-loss semiconductor lighting module of the utility model;

[0016] Figure 4 This is a cross-sectional view of a PCB substrate of a low-loss semiconductor lighting module of the utility model.

[0017] Legend:

[0018] 1. PCB substrate; 2. Fixing frame; 3. Reflector; 4. Breathable membrane; 5. Condenser; 6. Lighting lamp; 7. Heat sink; 8. Ventilation slot; 9. Micro fan. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] Reference Figure 1-4 The utility model embodiment is a low-loss semiconductor lighting module, which includes: a PCB substrate 1, including: a fixing frame 2 is fixedly connected to the front and rear side walls of the PCB substrate 1, the fixing frame 2 is in a "U" shape, a reflector 3 is fixedly connected to the top of the fixing frame 2, and a breathable membrane 4 is fixedly connected to the top of the reflector 3. The breathable membrane 4 is an anti-UV TPU polyurethane optical film. The anti-UV TPU polyurethane optical film has excellent waterproofness, breathability, transparency, and heat and cold resistance. It can prevent water molecules from entering the reflector 3, and at the same time, the light reflected by the reflector 3 can be transmitted, so as to avoid the formation of water droplets on the lighting module to damage the lighting module. A condenser 5 and a lighting lamp 6 are fixedly connected to the top of the PCB substrate 1. The number of condensers 5 is multiple, and they are in two The rows are evenly distributed on the PCB substrate 1, the top heat-absorbing end of the condenser 5 is located inside the reflector 3, and the bottom heat-dissipating end of the condenser 5 is located inside the ventilation slot 8. The condenser 5 can quickly transfer the heat on the reflector 3 and the PCB substrate 1 to the bottom heat-dissipating end, and dissipate the heat under the action of the heat sink 7 and the micro-fan 9. There are multiple lighting lamps 6, which are evenly distributed in a single row between two rows of condenser tubes 5. The bottom of the PCB substrate 1 is fixedly connected with a heat sink 7, and ventilation slots 8 are through-set on the left and right side walls of the heat sink 7 for heat dissipation to guide the heat out from both ends. The bottom of the fixing frame 2 is fixedly connected with a micro-fan 9. There are multiple micro-fans 9, which are evenly distributed at the bottom of the fixing frame 2 for heat dissipation of the heat sink 7.

[0021] Working principle: When powered on, the lighting module emits light and generates a large amount of heat at the same time, which is collected and transmitted under the action of the reflector 3. The temperature inside the reflector 3 rises, and the temperature of the PCB substrate 1 also rises. At this time, the condenser 5 inside the reflector 3 works to conduct the internal heat to the heat dissipation end below, and discharges the heat from the two ends of the ventilation slot 8 under the action of the heat dissipation plate 7 and the micro fan 9, thereby achieving the purpose of rapid heat dissipation. The breathable membrane 4 above the reflector 3 can effectively block the movement of water molecules into the reflector 3, avoiding damage caused by condensation of water droplets on the lighting module. At the same time, the high air permeability can also transfer the internal heat of the reflector 3 to the outside, forming internal heat dissipation.

[0022] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A low-loss semiconductor lighting module, comprising: A PCB substrate (1), characterized in that it comprises: a fixing frame (2) fixedly connected to the front and rear side walls of the PCB substrate (1), the fixing frame (2) being in a "U" shape, a reflector (3) fixedly connected to the top of the fixing frame (2), a breathable membrane (4) fixedly connected to the top of the reflector (3), a condenser (5) and an illuminating lamp (6) fixedly connected to the top of the PCB substrate (1), a heat sink (7) fixedly connected to the bottom of the PCB substrate (1), ventilation slots (8) penetratingly provided on the left and right side walls of the heat sink (7), and a micro fan (9) fixedly connected to the bottom of the fixing frame (2).

2. A low-loss semiconductor lighting module according to claim 1, characterized in that: The condensation tubes (5) are provided in a plurality and are evenly distributed in two rows on the PCB substrate (1).

3. A low-loss semiconductor lighting module according to claim 2, characterized in that: The number of the lighting lamps (6) is multiple and they are evenly distributed in a single row between the two rows of condensation tubes (5).

4. A low-loss semiconductor lighting module according to claim 2, characterized in that: The top heat absorbing end of the condenser tube (5) is located inside the reflector (3), and the bottom heat dissipating end of the condenser tube (5) is located inside the ventilation slot (8).

5. A low-loss semiconductor lighting module according to claim 1, characterized in that: The number of the micro fans (9) is multiple and evenly distributed at the bottom of the fixing frame (2).

6. A low-loss semiconductor lighting module according to claim 1, characterized in that: The breathable film (4) is a UV-resistant TPU polyurethane optical film.

Images