CN207005763U - LED lamp with combined heat dissipation structure - Google Patents

Abstract

The utility model discloses an LED lamp with a combined heat dissipation structure, including a lighting device, a heat dissipation device and a fan device; the lighting device includes an LED lamp bead, a circuit substrate, a reflective bowl, a light-transmitting mirror, and a heat-conducting silicone belt, and the reflective bowl is a heat-conducting bowl sleeved on the outside; the heat dissipation device includes a heat dissipation tube and a guide tube, and a heat dissipation column is arranged in the heat dissipation tube, and a plurality of heat dissipation fins are installed on the heat dissipation column, and the heat dissipation tube is sleeved in the guide tube; the fan device includes a shell, a fan, and a motor, and the shell has a cavity inside, and the fan is connected to the motor and installed in the shell cavity, and the shell has a plurality of air outlets on the fan outlet side, and the air outlets are connected to the internal space of the heat dissipation tube, and the shell has a plurality of air inlets on the other side of the fan. The utility model utilizes the combined application of multiple heat dissipation methods to improve the heat dissipation effect of the heat dissipation device.

Description

LED lamp with combined heat dissipation structure

technical field

The utility model relates to an LED lamp, in particular to an LED lamp with a group heat dissipation structure.

Background technique

LED lamps are widely used in various lighting fields due to the advantages of energy saving, environmental protection, small size, and fast response. However, the efficiency of converting electrical energy into light energy of LED lamps is only about 30%, and most of the remaining electrical energy is converted into heat energy. High heat is generated during lighting. Since the luminous rate and luminous quality of LED will decrease with the increase of temperature, the accumulated heat will cause the temperature of LED lamp beads to be too high, thereby affecting the luminous efficiency of LED lamps and shortening the service life. Therefore, the heat dissipation problem directly affects the service life of LED lamp beads.

The patent application number CN 201610886483 discloses the heat dissipation structure of LED lamps. The LED lamps include a substrate with a number of LED lamp beads evenly distributed on the upper end surface. Fins to improve the LED light has a cooling effect. The LED lamp can achieve a better heat dissipation effect, but if the LED lamp is used for a long time, hot air will be filled in the heat sink and be difficult to dissipate, resulting in a decrease in heat dissipation effect and affecting the long-term use effect of the LED lamp.

Utility model content

The utility model provides an LED lamp with a combined heat dissipation structure to at least solve the problems in the prior art that the heat in the heat sink is difficult to dissipate and the heat dissipation effect is reduced.

The utility model provides an LED lamp with a combined heat dissipation structure, including an illumination device, a heat dissipation device and a fan device; The beads are installed on the circuit substrate, the reflective bowl is covered with a heat-conducting bowl on the outside, the reflective bowl and the heat-conducting bowl are connected to the circuit substrate through a heat-conducting silicone belt, and the light-transmitting mirror is installed on the reflective bowl and the heat-conducting bowl; The heat dissipation device includes a heat dissipation cylinder and a flow guide cylinder. The heat-conducting silicone belt and the circuit substrate are installed at one end of the heat dissipation cylinder, and the other end of the heat dissipation cylinder is an open structure. There are multiple heat dissipation fins, and the heat dissipation cylinder can be inserted into the guide cylinder; the fan device includes a housing, a fan, and a motor, and the heat dissipation cylinder is sleeved in the guide cylinder and installed on the housing. The casing is fixedly connected with the guide tube, the casing has a cavity inside, the fan is connected to the motor and installed in the cavity of the casing, and the casing has multiple air outlets on the air outlet side of the fan, so The air outlet communicates with the inner space of the cooling cylinder, and the casing has a plurality of air inlets on the other side of the fan.

Optionally, a thermally conductive silicone grease layer is provided between the circuit substrate and the heat sink.

Optionally, the heat dissipation cylinder is further provided with an internal air guide cylinder, the internal air guide cylinder is installed on the housing of the fan device, and the air outlet on the housing communicates with the inner space of the internal air guide cylinder.

Optionally, the air inlet is provided with a dust-proof net.

Optionally, the reflective bowl is aluminum foil.

Optionally, the heat conduction bowl is copper.

Compared with the prior art, the utility model installs the fan device in the LED lamp, and uses the combination of the heat dissipation tube and the guide tube to form a gas guide channel, so that the wind generated by the fan can flow according to the gas guide channel, replacing The hot gas inside the heat sink accelerates the gas exchange rate inside the heat sink and improves the heat dissipation effect of the heat sink.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Figure 2 is a schematic diagram of the connection between the heat dissipation column and the heat dissipation fins of the embodiment of the utility model;

Fig. 3 is a schematic structural view of an embodiment of the utility model with an internal guide tube.

detailed description

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

The embodiment of the utility model provides an LED lamp with a combined heat dissipation structure, as shown in Fig. 1 and Fig. 2, including an illumination device, a heat dissipation device and a fan device 9; Bowl 6, light-transmitting mirror 5, heat-conducting silicone belt 3, the LED lamp bead 1 is installed on the circuit substrate 2, the reflective bowl 6 is covered with a heat-conducting bowl 4 on the outside, and the reflective bowl 6 and heat-conducting bowl 4 pass through the heat-conducting The silicone tape 3 is connected to the circuit substrate 2, and the light-transmitting mirror 5 is installed on the reflective bowl 6 and the heat conduction bowl 4; Installed on one end of the heat dissipation cylinder 7, the other end of the heat dissipation cylinder 7 is an open structure, the heat dissipation cylinder 7 is provided with a heat dissipation column 71, and a plurality of heat dissipation fins 72 are installed on the heat dissipation cylinder 71, and the heat dissipation cylinder 7 Can be inserted into the guide tube 8; the fan device 9 includes a housing 91, a fan 92, and a motor 93. The heat dissipation tube 7 is fitted in the guide tube 8 and installed on the housing 91. 91 is fixedly connected with the guide cylinder 8, the housing 91 has a cavity inside, the fan 92 is connected with the motor 93, and is installed in the cavity of the housing 91, and the housing 91 has multiple The air outlet 94 communicates with the inner space of the heat sink 7 , and the casing 91 has a plurality of air inlets 95 on the other side of the fan.

Wherein, as shown in FIG. 1 and FIG. 2 , the cooling fins 72 are strip-shaped and installed along the surface of the cooling column 71 .

The LED lamp bead 1, as the heating body, is the main source of heat production. The embodiment of the utility model adopts a combination of a heat-conducting bowl 4 with heat dissipation performance, a heat-conducting silicone belt 3 and a heat-dissipating cylinder 7 to surround the LED lamp bead 1, and the LED lamp bead 1 produces The heat is efficiently conducted to the outside. The combination of the heat dissipation cylinder 7 and the air guide cylinder 8 forms a gas guide channel, so that the wind generated by the fan device 9 can flow along the surface of the heat dissipation cylinder 7, promote the distribution of hot air around the heat dissipation cylinder 7, and effectively take away the heat on the surface of the heat dissipation cylinder 7 , to achieve the effect of combined heat dissipation, so as to ensure that the LED lamp can have a good use effect for a long time.

Optionally, a thermal conductive silicone grease layer is provided between the circuit substrate 2 and the heat dissipation cylinder 7 .

In the embodiment of the utility model, a heat-conducting silicone grease layer is arranged between the circuit substrate 2 and the cooling cylinder 7, and the gap between the circuit substrate 2 and the heat-dissipating cylinder 7 is effectively filled by the heat-conducting silicone grease layer, thereby enhancing heat transfer from the circuit substrate 2 to the heat-dissipating cylinder 7 ensures that the heat generated by the LED lamp can quickly pass through the circuit substrate 2 to the cooling tube 7, improving the heat dissipation efficiency of the LED lamp.

Optionally, as shown in FIG. 3 , the heat dissipation tube 7 is also provided with an internal flow guide tube 10, and the internal flow guide tube 10 is installed on the housing 91 of the fan device 9, and the outlet on the housing 91 The tuyere 94 communicates with the inner space of the inner draft tube 10 .

Wherein, as shown in Fig. 3, the combination of the heat dissipation tube 7, the inner guide tube 10 and the guide tube 8 forms a longer curved gas guide channel, and the wind generated by the fan device 9 can flow close to the surface of the heat sink. .

In the embodiment of the utility model, through the combination of the heat dissipation cylinder 7, the internal guide cylinder 10 and the flow guide cylinder 8, the wind generated by the fan device 9 can fully contact with the heat dissipation cylinder and perform heat exchange, so as to achieve a good heat dissipation effect.

Optionally, the air inlet is provided with a dust-proof net.

Wherein, the dustproof net is a detachable structure.

Dust is easily affected by static electricity and accumulates near the motor, affecting the fan, and the dust can easily lead to mildew inside the gas diversion channel, affecting the overall heat dissipation effect of the LED lamp. The embodiment of the utility model effectively isolates the dust in the air by applying the dust-proof net to ensure that the internal space of the heat dissipation device and the fan device 9 is clean, ensures that the LED lamp can have a good heat dissipation effect for a long time, and ensures that the motor can operate effectively for a long time.

Optionally, the reflective bowl 6 is aluminum foil.

The embodiment of the utility model uses aluminum foil as the structure of the reflective bowl 6, and utilizes the strong reflectivity of the aluminum foil to achieve a better reflective effect. Improve the cooling effect of LED lights.

Optionally, the heat conduction bowl 4 is copper.

The embodiment of the utility model uses red copper as the structure of the heat conduction bowl 4, utilizes the high heat conduction performance of red copper, so that the heat generated by the LED lamp can be quickly conducted to the outside of the heat conduction bowl 4, and the overall heat dissipation efficiency of the LED lamp is improved.

Claims (6)

1. the LED with combination heat dissipation structure, it is characterised in that including：

Lighting device, the lighting device includes LED lamp bead, circuit substrate, reflector, transmissive mirror, heat conductive silica gel band, described LED lamp bead is arranged in circuit substrate, and the reflector is that outside is cased with heat conduction bowl, and the reflector and heat conduction bowl pass through heat conduction Silicone band is connected with circuit substrate, and the transmissive mirror is arranged on reflector and heat conduction bowl；

Heat abstractor, the heat abstractor include heat-dissipating cylinder, guide shell, and the heat conductive silica gel band and circuit substrate are arranged on radiating Cylinder one end, the heat-dissipating cylinder other end are hatch frame, are provided with thermal column in the heat-dissipating cylinder, are provided with the thermal column more Individual radiating fin, the heat-dissipating cylinder can be inserted in guide shell；

Fan assembly, the fan assembly include housing, fan, motor, and the heat-dissipating cylinder is linked in guide shell, installed in shell On body, the housing is fixedly connected with guide shell, and the enclosure interior has cavity, and the fan is connected with motor, is arranged on In housing hollow, the housing has multiple air outlets in fan air side, and the air outlet connects with heat-dissipating cylinder inner space, The housing has multiple air intake vents in the opposite side of fan.

2. the LED according to claim 1 with combination heat dissipation structure, it is characterised in that the circuit substrate is with dissipating Between hot cylinder, provided with thermal grease layer.

3. the LED according to claim 1 with combination heat dissipation structure, it is characterised in that the heat-dissipating cylinder is additionally provided with Internal guide cylinder, the internal guide cylinder are arranged on the housing of fan assembly, air outlet and internal diversion on the housing The inner space connection of cylinder.

4. the LED according to claim 1 with combination heat dissipation structure, it is characterised in that the air intake vent is provided with anti- Dirt net.

5. the LED according to claim 1 with combination heat dissipation structure, it is characterised in that the reflector is aluminium foil.

6. the LED according to claim 1 with combination heat dissipation structure, it is characterised in that the heat conduction bowl is red copper.