CN217423182U - Lamp with air guide assembly - Google Patents

Abstract

The application provides a lamps and lanterns with air guide component, which comprises a housin, the light source, functional unit and air guide component, the casing includes the light source heat dissipation chamber that sets gradually along the light-emitting direction, second heat dissipation chamber and first heat dissipation chamber, the first air intake with first heat dissipation chamber intercommunication is seted up to the casing, the first exhaust port with light source heat dissipation chamber intercommunication is seted up to the casing, light source heat dissipation chamber and second heat dissipation chamber air current communicate with each other, second heat dissipation chamber and first heat dissipation chamber air current communicate with each other, the light source sets up at light source heat dissipation chamber, functional unit sets up at first heat dissipation chamber and second heat dissipation chamber, air guide component's entry and first heat dissipation chamber intercommunication, air guide component's export and second heat dissipation chamber intercommunication. The air guide assembly performs forced convection between the first heat dissipation cavity and the second heat dissipation cavity, so that air flow enters the light source heat dissipation cavity under the action of pressure difference and is finally discharged out of the shell, and the lamp with the air guide assembly can improve the heat dissipation effect.

Description

Lamp with air guide assembly

Technical Field

The application relates to the field of lamp heat dissipation, in particular to a lamp with an air guide assembly.

Background

In order to meet the market demands of high brightness and high illumination, the power of a light source is designed to be larger and larger, and meanwhile, in order to reduce the transportation cost, the appearance of the lamp is sought to be attractive and exquisite, and the appearance of the lamp is more and more miniaturized. Because the high-power stage lamp is fast in temperature rise and long in service time, the original heat dissipation system cannot effectively take away heat in time on the premise of not improving the heat dissipation efficiency, so that electronic components can be caused to lose efficacy or be burnt due to overhigh temperature, and a light source is also easy to be burnt.

At present, in a stage light fixture using a high-power LED integrated light source, for heat dissipation of functional components (CMY color mixing component, cutting component, prism component, focusing component, etc.) and the LED light source, some of the schemes are as follows: the cold air flow firstly flows into the light source heat dissipation cavity with higher temperature to absorb heat and then flows into the functional part heat dissipation cavity with medium temperature to dissipate heat, so that the temperature of the functional part heat dissipation cavity is increased, and the electronic components are failed or burnt.

Still other solutions are: the cold airflow flows into the functional part heat dissipation cavity to absorb heat and then flows into the light source heat dissipation cavity to be used for cooling the light source, certain heat can be accumulated in the functional part heat dissipation cavity by the cold airflow, the temperature difference between the airflow after absorbing heat and the light source heat dissipation cavity is small, the heat of the light source cannot be taken away effectively in time, the heat dissipation pressure of the light source is increased, and the light source is easy to burn.

There are also some other problems with current heat dissipation solutions: the ribs are arranged on the shell of the lamp, airflow can flow around along the ribs, and accordingly pressure of the airflow is reduced step by step, and the airflow after heat absorption is not convenient to discharge. The airflow flows in one direction on the surface of the functional element, and the functional element, particularly the optical lens group, is easy to accumulate dust.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a lamp with the air guide assembly, and the lamp with the air guide assembly can improve the heat dissipation effect.

According to the embodiment of the application, the lamp with the air guide component comprises a shell, a light source, a functional component and the air guide component, wherein the shell comprises a light source heat dissipation cavity, a second heat dissipation cavity and a first heat dissipation cavity which are sequentially arranged along the light emitting direction, a first air inlet communicated with the first heat dissipation cavity is formed in the shell, a first exhaust port communicated with the light source heat dissipation cavity is formed in the shell, the light source heat dissipation cavity is communicated with the second heat dissipation cavity through air flow, the second heat dissipation cavity is communicated with the first heat dissipation cavity through air flow, the light source is arranged in the light source heat dissipation cavity, the functional component is arranged in the first heat dissipation cavity and the second heat dissipation cavity, the air guide component is communicated with the first heat dissipation cavity, the air guide component is communicated with the second heat dissipation cavity, the air guide component is used for forcing air flow to flow into the second heat dissipation cavity to enable the second heat dissipation cavity to form air pressure difference with the light source heat dissipation cavity, and the air guide component is arranged in the second heat dissipation cavity And the light source heat dissipation cavity and the outside of the shell form air pressure difference.

According to the lamp with the air guide assembly provided by the embodiment of the application, at least the following technical effects are achieved: the air current that gets into from first air intake is in proper order to first heat dissipation chamber, second heat dissipation chamber and light source heat dissipation chamber heat dissipation, air guide component can assemble the air current, improve the air velocity that flows through the functional unit surface, take away the heat fast, air guide component forces the convection current between first heat dissipation chamber and second heat dissipation chamber, thereby the atmospheric pressure in second heat dissipation chamber has been increased, loss of pressure when having reduced the air current simultaneously and flowing, make the air current get into light source heat dissipation chamber and finally outside the discharge casing under the effect of pressure differential, the lamps and lanterns that have air guide component can improve the radiating effect.

According to some embodiments of the present application, the luminaire with the air guide assemblies comprises at least two air guide assemblies, and outlets of the air guide assemblies are arranged oppositely to allow air flows of the air guide assemblies to converge.

According to some embodiments of the application, the air guide assembly comprises a drainage fan and an air guide cylinder, an inlet of the drainage fan is communicated with the first heat dissipation cavity, the air guide cylinder is installed at an outlet of the drainage fan to converge air flow, and an outlet of the air guide cylinder is communicated with the second heat dissipation cavity.

According to some embodiments of the present application, the air guiding assembly includes a guiding nozzle installed at an outlet of the air guiding duct, and the guiding nozzle is used for guiding the wind flow to blow towards a heat generating part of the functional assembly.

According to some embodiments of the application, the casing includes shell, first baffle and second baffle, the shell surrounds and forms the inner chamber, first baffle with the second baffle interval sets up in the inner chamber, first baffle will the inner chamber is separated for the function part heat dissipation chamber with the light source heat dissipation chamber, the second baffle will function part heat dissipation chamber is separated for first heat dissipation chamber with the second heat dissipation chamber, the vent has been seted up to first baffle, the function part heat dissipation chamber with the light source heat dissipation chamber passes through the vent intercommunication.

According to some embodiments of this application, lamps and lanterns with wind guide assembly include the radiator, the radiator is located light source heat dissipation chamber, the light source is installed on the radiator, logical unthreaded hole has been seted up to first baffle, the play plain noodles butt of light source logical unthreaded hole.

According to some embodiments of the present application, the heat sink includes fins, a heat pipe, and a heat conducting plate, the light source and the fins are installed on the heat conducting plate, each of the fins is disposed at an interval, and the heat pipe is in heat transfer connection with the fins.

According to some embodiments of the present application, the housing includes a third air inlet and a third air outlet, and the heat sink further includes a first heat dissipation fan and a second heat dissipation fan, and the first heat dissipation fan and the second heat dissipation fan are respectively installed at both ends of the plane extending direction of the fins.

According to some embodiments of the present application, the heat pipe includes a condensation section protruding from the fin in a normal direction of the fin, the condensation section being located on a wind flow path line from the vent to the first vent.

According to some embodiments of the application, the casing includes the baffle, the baffle is located light source heat dissipation chamber, the baffle with the radiator surrounds and forms the second wind channel, the second wind channel intercommunication the vent with first exhaust opening, the condensation segment is located in the second wind channel.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded schematic view of a lamp having a wind guide assembly according to an embodiment of the present application;

fig. 2 is a front view of a lamp with a wind guide assembly according to an embodiment of the present application, after a housing is removed;

fig. 3 is a schematic cross-sectional view of a lamp having a wind guide assembly according to an embodiment of the present application;

FIG. 4 is a schematic flow direction diagram of an air flow entering the housing from the first air inlet according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of another angle of a lamp with a wind guide assembly according to an embodiment of the present application;

FIG. 6 is a schematic flow direction diagram of the wind entering the housing from the third wind inlet in the embodiment of the present application;

fig. 7 is an exploded view of the mounting relationship of the light source and the heat sink according to the embodiment of the present application.

Reference numerals are as follows:

1-shell, 11-first clapboard, 111-ventilation opening, 112-light through hole, 12-second clapboard, 13-baffle, 14-flow guide plate;

2-a functional part heat dissipation cavity, 21-a first air inlet, 23-a magnifier, 24-a focusing mirror, 25-a diversion fan and 26-a driving motor;

3-a light source heat dissipation cavity, 31-a first air outlet, 33-a third air inlet and 34-a third air outlet;

4-a light source;

5-radiator, 51-fin, 52-heat pipe, 53-heat conducting plate;

61-a first heat dissipation fan, 62-a second heat dissipation fan;

71-a drainage fan;

81-air duct, 83-guiding nozzle.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

The lamp with the air guide assembly provided by the embodiment of the application comprises a shell 1 and a light source 4, functional unit and air guide component, casing 1 includes the light source heat dissipation chamber 3 that sets gradually along the light-emitting direction, second heat dissipation chamber and first heat dissipation chamber, the first air intake 21 with first heat dissipation chamber intercommunication is seted up to the casing, the first exhaust port 31 with light source heat dissipation chamber 3 intercommunication is seted up to the casing, light source heat dissipation chamber 3 and second heat dissipation chamber air current communicate with each other, second heat dissipation chamber and first heat dissipation chamber air current communicate with each other, light source 4 sets up at light source heat dissipation chamber 3, functional unit sets up at first heat dissipation chamber and second heat dissipation chamber, air guide component's entry and first heat dissipation chamber intercommunication, air guide component's export and second heat dissipation chamber intercommunication, air guide component is used for forcing the air current to flow into second heat dissipation chamber in order to make second heat dissipation chamber and light source heat dissipation chamber 3 form the atmospheric pressure difference and light source heat dissipation chamber 3 and casing 1's outside forms the atmospheric pressure difference.

The utility model provides a lamps and lanterns with air guide component, the wind current that gets into from first air intake 21 is in proper order to first heat dissipation chamber, second heat dissipation chamber and the heat dissipation of light source heat dissipation chamber 3, air guide component can assemble the wind current, improve the air velocity that flows through the functional unit surface, take away the heat fast, air guide component carries out forced convection between first heat dissipation chamber and second heat dissipation chamber, thereby the atmospheric pressure in second heat dissipation chamber has been increased, loss of pressure when the wind current flows has been reduced simultaneously, make the air current get into light source heat dissipation chamber 3 and finally discharge outside the casing under the effect of pressure differential, lamps and lanterns with air guide component can improve the radiating effect.

In some embodiments, the air guide assembly comprises a draught fan 71 and an air guide cylinder 81, an inlet of the draught fan 71 is communicated with the first heat dissipation cavity, the air guide cylinder 81 is installed at an outlet of the draught fan 71 to converge air flow, and an outlet of the air guide cylinder 81 is communicated with the second heat dissipation cavity.

In some embodiments, the air guiding assembly includes a guiding nozzle 83, the guiding nozzle 83 is installed at the outlet of the air guiding cylinder 81, and the guiding nozzle 83 is used for guiding the wind flow to blow towards the heat generating part of the functional assembly. The guide nozzle 83 can further converge and guide the airflow, so that the airflow is more concentrated in the region with the maximum heat productivity of the functional assembly, and accordingly heat dissipation is performed in a targeted manner, and the heat dissipation effect is improved.

In some embodiments, a luminaire having air deflection assemblies includes at least two air deflection assemblies, with outlets of each air deflection assembly facing each other to allow the air flow of each air deflection assembly to converge on each other. Because the outlets of the air guide assembly are arranged in opposite directions, the air flows collide with each other, so that turbulent flow is formed in the area where the functional assembly of the second heat dissipation cavity is located due to the collision, the turbulent flow has a changed purging effect on the surface of the air guide assembly, and therefore accumulation of dust on the air guide assembly is reduced, and heat transfer of fluid is enhanced.

The housing 1 may be constructed in various ways. According to some embodiments of the present application, referring to fig. 1 and 2, the housing 1 includes a casing, a first partition 11 and a second partition 12, the casing surrounds to form an inner cavity, the first partition 11 and the second partition 12 are disposed at intervals in the inner cavity, the first partition 11 divides the inner cavity into the function heat dissipation cavity 2 and the light source heat dissipation cavity 3, and the second partition 12 divides the function heat dissipation cavity 2 into the first heat dissipation cavity and the second heat dissipation cavity. The first partition plate 11 is provided with a ventilation opening 111, and the function part heat dissipation cavity 2 and the light source heat dissipation cavity 3 are communicated through the ventilation opening 111.

In this case, the air guide assembly may be disposed in the inner cavity, for example, referring to fig. 1 and 2, the air guide assembly is inserted into the second partition plate 12. Referring to fig. 3 and 4, two air guide assemblies may be provided, the two air guide assemblies being disposed at opposite sides of the casing 1, and air guide cylinders 81 of the two air guide assemblies being directed toward the center, so that the air flows are converged at the center and generate turbulent flow. At this time, two sets of the first air inlet 21, the vent 111 and the first exhaust port 31 are also provided, and respectively correspond to the two air guiding assemblies.

According to some embodiments of the present application, the casing 1 includes a flow guide plate 14, the flow guide plate 14 is disposed in the first heat dissipation chamber, and the flow guide plate 14 and the casing enclose to form a first air duct, which in some embodiments communicates with the first air inlet 21, the first heat dissipation chamber and the inlet of the flow guide fan 71. The first air duct can guide the air to flow to the air guide assembly, and pressure loss along the way is reduced. Specifically, the air flow outside the housing 1 and the air flow of the first heat dissipation chamber enter the first air duct together and flow to the drainage fan 71, and are guided into the second heat dissipation chamber by the drainage fan 71.

In other embodiments, the first air inlet 21 is hermetically connected to the first air duct, and the air flow outside the housing 1 enters the first air duct from the first air inlet 21 and flows to the induced draft fan 71.

In some embodiments, the functional components include a drive motor 26, and the drive motor 26 is disposed within the first air chute. The driving motor 26 is used for driving the movement of the parts in the functional assembly, for example, the magnifying lens 23 and the focusing lens 24 are driven to operate, the heating value of the driving motor 26 is large when the driving motor 26 operates, and the heat of the driving motor 26 can be taken away conveniently while the cold air flows through the first air duct, so that the heat dissipation effect is improved.

In some embodiments, the first air inlet 21 is further provided with a diversion fan 25, and the diversion fan 25 promotes the outside air flow to enter the inner cavity and flow to the diversion fan 71.

According to some embodiments of the present application, the lamp with the air guide assembly includes a heat sink 5, the heat sink 5 is located in the light source heat dissipation cavity 3, the light source 4 is installed on the heat sink 5, the first partition 11 is provided with a light through hole 112, and a light emitting surface of the light source 4 abuts against the light through hole 112.

In some embodiments, the heat sink 5 includes fins 51, a heat pipe 52, and a heat conductive plate 53, the light source 4 and the fins 51 are mounted on the heat conductive plate 53, the fins 51 are spaced apart, and the heat pipe 52 is in heat transfer connection with the fins 51. The provision of the heat pipe 52 and the fin 51 can help the heat to be dissipated more quickly.

For example, referring to fig. 7, the fins 51 are arranged in an array on both sides of the heat conductive plate 53, and the fins 51 on the side where the light source 4 is located are adjacent to the light source 4 from both sides, so that the heat of the light source 4 can be rapidly dissipated to the fins 51. The heat pipe 52 passes through each of the fins 51, and facilitates heat exchange and heat dissipation between the different fins 51.

In some embodiments, the housing includes a third air inlet 33 and a third air outlet 34, and the heat sink 5 further includes a first heat dissipation fan 61 and a second heat dissipation fan 62, wherein the first heat dissipation fan 61 and the second heat dissipation fan 62 are respectively installed at two ends of the plane extending direction of the fins 51. The first and second heat dissipation fans 61 and 62 allow air to flow through the gaps between the fins 51, so that the heat sink 5 is subjected to forced convection heat dissipation, thereby improving the heat dissipation effect.

In some embodiments, the heat pipe 52 includes a condensation section protruding from the fin 51 in a normal direction of the fin 51, and the condensation section is located on a path of the wind flowing from the ventilation opening 111 to the first ventilation opening 31. The wind flowing from the ventilation opening 111 to the first ventilation opening 31 can take away the heat of the heat pipe 52, thereby improving the heat dissipation effect.

In some embodiments, the housing includes a baffle 13, the baffle 13 is located in the light source heat dissipation chamber 3, the baffle 13 and the heat sink 5 surround to form a second air duct, the second air duct communicates with the ventilation opening 111 and the first exhaust opening 31, and the condensation section is located in the second air duct. Referring to fig. 5 and 6, the second air duct can guide the air flow, so that the air flow is blown to the heat pipe 52 more intensively, thereby improving the heat dissipation effect, and the second air duct prevents the air flow from bypassing the heat pipe 52 and directly flowing to the first exhaust port 31.

The light fixture with the wind guide assembly according to the embodiment of the present application is described in detail with reference to fig. 1 to 7. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting. The present embodiments may also be replaced by or combined with the corresponding technical features described above.

Referring to fig. 1 and 2, the lamp with the air guide assembly comprises a shell 1, a light source 4 and a radiator 5, wherein the shell 1 is divided into a function part heat dissipation cavity 2 and a light source heat dissipation cavity 3 through a first partition plate 11, and the function part heat dissipation cavity 2 is divided into a first heat dissipation cavity and a second heat dissipation cavity through a second partition plate 12. The first clapboard 11 is provided with a light through hole 112 and a ventilation opening 111, and the functional part heat dissipation cavity 2 and the light source heat dissipation cavity 3 can be communicated in an air flow manner through the ventilation opening 111; light source 4, radiator 5 all locate light source heat dissipation chamber 3, and the play plain noodles butt logical unthreaded hole 112 of light source 4, and light source 4 installs on radiator 5.

Referring to fig. 3 and 4, the housing 1 has two first air inlets 21, the first air inlets 21 are located in the first heat dissipation chamber, and a guide fan 25 is disposed at the first air inlets 21. The lamp with the air guide assembly comprises two air guide assemblies, the two air guide assemblies are arranged on two opposite sides of the shell 1 and respectively correspond to the two first air inlets 21, and each air guide assembly comprises a drainage fan 71, an air guide cylinder 81 and a guide nozzle 83. The casing 1 forms a first air duct through the flow guiding plate 14, the first air inlet 21 is communicated with an inlet of the first air duct, the flow guiding fan 71 is arranged at an outlet of the first air duct, and the flow guiding fan 25 and the flow guiding fan 71 promote airflow to flow into the first air duct from the first air inlet 21 and the first heat dissipation cavity.

The air guide component collects air through the air guide cylinder 81 to improve the flow and the airflow speed flowing through the surface of the heating component and accelerate the cooling of the heating component; the guide nozzle 83 is directed to the heat generating component to cool the heat generating component, thereby cooling the component with high heat generation. The functional part heat dissipation cavity 2 is further provided with a magnifying lens 23 and a focusing lens 24, and a driving motor 26 for driving the magnifying lens 23 and the focusing lens 24 to operate is arranged in the first air duct, so that cold air flows through the first air duct and heat of the driving motor 26 is taken away conveniently. The light source heat dissipation cavity 3 is provided with a first air outlet 31, and the first air outlet 31 is in air flow communication with the air vent of the first partition plate 11. The housing 1 has two first exhaust openings 31, the first exhaust openings 31 are located in the light source heat dissipation chamber 3, and the first exhaust openings 31 are in airflow communication with the ventilation openings 111 of the first partition plate 11.

It can be understood that the functional components of the first heat dissipation chamber mainly include a prism component, a focusing component, and the like, the heat of these components mainly comes from the driving motor 26, and the functional components of the second heat dissipation chamber mainly include a CMY color mixing component, a cutting component, and the like, and the actions of these components can block part of the light spots, and the heat generation is large. Generally, the heat generation amounts of the first heat dissipation cavity, the second heat dissipation cavity and the light source heat dissipation cavity 3 are gradually increased.

The air-guiding fan 71 causes the airflow to flow into the first air duct from the first air inlet 21, and also causes the airflow of the first heat dissipation chamber to be sucked into the first air duct and then guided into the second heat dissipation chamber, on one hand, the airflow of the first heat dissipation chamber continues to absorb heat in the second heat dissipation chamber, and on the other hand, the air pressure of the second heat dissipation chamber is relatively increased, so that the air is conveniently extruded into the light source heat dissipation chamber 3 through the vent 111; if the first air duct and the air guide assembly are not provided, air pressure is gradually lost after air enters from the first air inlet 21, and the air flow of the functional part heat dissipation cavity 2 is not extruded into the light source heat dissipation cavity 3. The air outside the shell 1 enters the first heat dissipation cavity through forced convection, the air in the first heat dissipation cavity also enters the second heat dissipation cavity through forced convection, the air pressure of the second heat dissipation cavity is higher than that of the light source heat dissipation cavity 3, the air pressure of the light source heat dissipation cavity 3 is higher than the atmospheric pressure outside the shell 1, and the air flow is driven to flow inside and outside the shell 1 through the air pressure difference.

The heat sink 5 includes fins 51, heat pipes 52 and a heat conducting plate 53, the fins 51 are arranged at intervals and arrayed, and the fins 51 and the heat pipes 52 are arranged alternately and connected with the heat conducting plate 53. As shown in fig. 7, the heat conducting plate 53 is connected to the bottom of the light source 4, the fins 51 and the heat pipe 52 are also disposed on two sides of the light source 4, the condensation section of the heat pipe 52 protrudes out of the plane of the fins 51 and is in airflow communication with the ventilation opening 111 of the first partition 11, so that the airflow flowing into the light source heat dissipation chamber 3 from the function heat dissipation chamber 2 can force convection of the condensation section of the heat pipe 52, and the heat dissipation efficiency of the heat pipe 52 is accelerated. The light source heat dissipation cavity 3 is further provided with a baffle 13 connected with the first partition 11, and the baffle 13 guides the airflow to flow through the condensation section of the heat pipe 52, so that the airflow flowing into the light source heat dissipation cavity 3 from the functional part heat dissipation cavity 2 firstly performs forced convection on the condensation section of the heat pipe 52 and then is discharged out of the shell 1 through the first exhaust port 31.

The light source heat dissipation cavity 3 is further provided with a third air inlet 33 and a third air outlet 34, the heat sink 5 further comprises a first heat dissipation fan 61 and a second heat dissipation fan 62, the first heat dissipation fan 61 and the second heat dissipation fan 62 are respectively installed at two ends of the plane extending direction of the fins 51, so that the first heat dissipation fan 61 and the second heat dissipation fan 62 are respectively covered at two ends of a gap air duct between the fins 51, and air flow outside the housing sequentially flows through the third air inlet 33, the first heat dissipation fan 61, the gap air duct, the second heat dissipation fan 62 and the third air outlet 34 by setting air supply of the first heat dissipation fan 61 and air suction of the second heat dissipation fan 62, so that heat is taken away quickly, and heat transfer efficiency is improved. The third air inlet 33 is hermetically connected with the first heat dissipation fan 61, and the second heat dissipation fan 62 is hermetically connected with the third air outlet 34.

Referring to fig. 5 and 6, the first and second heat dissipation fans 61 and 62 are axial fans, and the motor shaft is positioned to face the heat conduction plate 53 of the heat sink 5. A part of the air flow generated by the fan flows along the two sides of the light source 4, a part of the air flow flows along the gap air channels of the fins 51 positioned at the two sides of the light source 4, and a part of the air flow flows along the gap air channels of the fins 51 at the bottom of the light source 4. The motor shaft is a blind area where the fan does not discharge air, and the airflow formed by the first cooling fan 61 and the second cooling fan 62 is subjected to multipath/multi-level cooling through the bottom and the side of the light source 4, so that the airflow is fully utilized, and heat can be quickly and effectively taken away.

The air flow outside the shell 1 is sucked in the functional part heat dissipation cavity 2, the air flow which is in the first air channel absorbs heat for the first time in the functional part heat dissipation cavity 2, then flows into the light source heat dissipation cavity 3 to absorb heat for the heat pipe 52 again, and then is discharged outside the shell 1 in the light source heat dissipation cavity 3, so that the heat dissipation utilization rate of the air flow is improved, and heat is effectively taken away.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A light fixture with a wind guide assembly, comprising:

the light source heat dissipation device comprises a shell, a first heat dissipation cavity and a second heat dissipation cavity, wherein the shell comprises a light source heat dissipation cavity, the second heat dissipation cavity and the first heat dissipation cavity which are sequentially arranged along a light emitting direction;

the light source is arranged in the light source heat dissipation cavity;

the functional components are arranged in the first heat dissipation cavity and the second heat dissipation cavity;

the air guide assembly, air guide assembly's entry with first heat dissipation chamber intercommunication, air guide assembly's export with second heat dissipation chamber intercommunication, air guide assembly is used for forcing the air current to flow in the second heat dissipation chamber is in order to impel the second heat dissipation chamber with light source heat dissipation chamber forms the atmospheric pressure difference and light source heat dissipation chamber with the outside of casing forms the atmospheric pressure difference.

2. The light fixture with the air guide assembly as set forth in claim 1, wherein: the lamp with the air guide assemblies comprises at least two air guide assemblies, and outlets of the air guide assemblies are arranged oppositely to allow air flows of the air guide assemblies to converge mutually.

3. The light fixture with the air guide assembly as set forth in claim 1, wherein: the air guide assembly comprises a drainage fan and an air guide cylinder, an inlet of the drainage fan is communicated with the first heat dissipation cavity, the air guide cylinder is installed at an outlet of the drainage fan to gather air flow, and an outlet of the air guide cylinder is communicated with the second heat dissipation cavity.

4. The luminaire having an air guide assembly as claimed in claim 3, wherein: the air guide assembly comprises a guide nozzle, the guide nozzle is installed at an outlet of the air guide cylinder, and the guide nozzle is used for guiding air flow to blow to a heating part of the functional assembly.

5. The light fixture with the air guide assembly as set forth in claim 1, wherein: the casing includes shell, first baffle and second baffle, the shell surrounds and forms the inner chamber, first baffle with the second baffle interval sets up in the inner chamber, first baffle will the inner chamber is separated for function piece heat dissipation chamber with the light source heat dissipation chamber, the second baffle will function piece heat dissipation chamber is separated for first heat dissipation chamber with the second heat dissipation chamber, the vent has been seted up to first baffle, function piece heat dissipation chamber with the light source heat dissipation chamber passes through the vent intercommunication.

6. The luminaire having an air guide assembly as claimed in claim 5, wherein: the lamp with the air guide assembly comprises a radiator, the radiator is located in the light source radiating cavity, the light source is installed on the radiator, the first partition plate is provided with a light through hole, and the light outlet surface of the light source is abutted to the light through hole.

7. The light fixture with the air guide assembly as set forth in claim 6, wherein: the radiator comprises fins, a heat pipe and a heat conducting plate, the light source and the fins are installed on the heat conducting plate, the fins are arranged at intervals, and the heat pipe is in heat transfer connection with the fins.

8. The light fixture with the air guide assembly as set forth in claim 7, wherein: the shell comprises a third air inlet and a third air outlet, the radiator further comprises a first cooling fan and a second cooling fan, and the first cooling fan and the second cooling fan are respectively installed at two ends of the plane extending direction of the fins.

9. The light fixture with the air guide assembly as set forth in claim 7, wherein: the heat pipe comprises a condensation section, the condensation section protrudes out of the fin along the normal direction of the fin, and the condensation section is located on a wind flow path line from the air vent to the first air vent.

10. The light fixture with the air guide assembly as set forth in claim 9, wherein: the shell comprises a baffle, the baffle is located in the light source heat dissipation cavity, the baffle and the radiator are surrounded to form a second air channel, the second air channel is communicated with the ventilation opening and the first exhaust opening, and the condensation section is located in the second air channel.

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