CN216924079U - Lamp body, lamp and head-shaking lamp - Google Patents

Abstract

The utility model relates to the field of lighting, and discloses a lamp body and a lamp with the lamp body. The lamp body comprises a casing, a light source and a radiator; the casing comprises a sealed first cavity; the light source is arranged in the first cavity The radiator includes a first radiator and a second radiator; the first radiator includes a cooling medium, the cooling medium is a gas and/or a first cooling liquid, and the cooling medium circulates in the first cavity and the outside of the first cavity to use for heat exchange; the second radiator is arranged outside the first cavity, and the second radiator is connected with the heat-conducting surface of the light source for heat exchange. At the same time, a moving head lamp is disclosed. The utility model has the characteristics of compact structure, light weight and high heat dissipation.

Description

A lamp body and lamp, moving head lamp

technical field

The utility model relates to the field of lighting devices, in particular to a lamp body and a lamp with both high heat dissipation efficiency and waterproofing.

Background technique

At present, the internal heat of the lamp body of LED waterproof lamps on the market is mainly cooled by heat conduction and heat radiation. There are the following situations:

(1) The heat of the light source is radiated to the outside of the lamp body through the thermal radiation of the lamp body shell. Because the LED module needs to work for a long time, the high-power light source generates a lot of heat and the lamp body is airtight, and only relying on the radiation heat dissipation of the lamp body shell cannot effectively take away the heat, which leads to the high internal temperature of the lamp body and the instability of the electrical components. or invalid. Therefore, the way of radiating heat through the lamp body shell cannot meet the working needs of the LED waterproof lamp.

(2) Conduct and dissipate the heat of the light source to the outside of the lamp through a metal radiator, such as a heat pipe radiator, a profile radiator, etc. Because the light source has the characteristics of high power, small size, concentrated heat and long working time, the small size of the light source limits the bonding area between the metal heat sink and the light source, and the cavity left for the arrangement of heat pipes or fins is limited, and The heat exchange efficiency factor of the radiator's own structure leads to low heat exchange efficiency and cannot effectively take away the heat of the light source. The accumulated heat under long-term operation will shorten the life of the light source or burn the light source.

For example, when the power of the LED module of the heat pipe radiator or profile radiator is ≥1200W, the sharply increased temperature in a short period of time can make the electrical components unstable, and the temperature of the lamp body cannot be reduced in time and effectively; The large volume and heavy weight make it impossible to reduce the volume of the whole lamp structure, and the shaft components and lamp arms connecting the lamp body and the lamp arm need to be redesigned to adapt to improve the rigidity and strength. The relevant parts cannot be compared with the parts of non-waterproof lamps. Used interchangeably, thereby increasing the cost of mold opening. Especially the profile radiator, because the fins are in contact with the air, a larger heat exchange area is required, resulting in a larger space and heavier weight. In addition, the fin group needs to surround the light source to conduct better heat conduction, which will make more The heat of the light source is dissipated to the inside of the lamp body of the waterproof lamp through the fins, and the heat of the light source cannot be quickly and effectively dissipated out of the lamp body. In addition, the cost of a single light source is several thousand yuan, and the high loss rate will lead to serious economic losses.

Utility model content

In order to overcome the problems existing in the background art, the present invention provides a lamp body and a lamp to solve the problem of high heat dissipation efficiency without increasing the volume and weight of the lamp body or the lamp.

In order to solve the above problems, the technical solution provided by an embodiment of the present utility model is:

In a first aspect, a lamp body is provided, including a housing, a light source and a radiator, the housing comprises a sealed first cavity; the light source is arranged in the first cavity; the radiator comprises a first radiator and a second radiator The first radiator includes a cooling medium, the cooling medium is a gas and/or a first cooling liquid, and the cooling medium circulates in the first cavity and the first cavity for heat exchange; the second radiator is arranged in the first cavity Outside the body, the second heat sink is connected to the heat conducting surface of the light source for heat exchange.

In a second aspect, a lamp is provided, including the lamp body described in the first aspect above.

In a third aspect, a moving head lamp is provided, including a lamp body, a lamp arm, a lamp holder and a radiator, the lamp body includes a casing and a light source, the casing includes a sealed first cavity, and the light source is disposed in the first cavity; The lamp arm has an open third cavity, and the lamp arm is rotatably connected with the lamp body; the lamp holder has a closed fourth cavity, and the lamp holder is rotatably connected with the lamp arm; the radiator includes a first radiator and a second radiator The first radiator includes a cooling medium, the cooling medium is a gas or a first cooling liquid, and the cooling medium circulates in the first cavity and the first cavity for heat exchange; the second radiator is arranged outside the first cavity, The second heat sink is connected to the heat conducting surface of the light source for heat exchange.

Compared with the prior art, the beneficial effects of the embodiments of the present utility model are:

1. Since the light source is set in the sealed first cavity, it can be prevented from being damaged by water. For the heat generated by the light source, part of the heat is first transferred to the cooling medium, and then the cooling medium is circulated in and outside the first cavity through natural convection or forced convection to dissipate heat; part of the heat is transferred to the first cavity through the heat conduction surface of the light source. Outside the cavity, the heat of the second heat sink is directly discharged outside the first cavity without being transferred into the first cavity.

2. Thanks to the characteristics of the lamp body being compact, light and efficient in heat dissipation, the lamp body, lamp arm and lamp holder do not need to increase the volume or weight, and the lamp arm, the shaft assembly connecting the lamp arm and the lamp body There is also no need to correspondingly improve the load-bearing capacity, rigidity and strength to maintain stability, thereby making the lamp structure compact and lightweight.

Description of drawings

1 is a cross-sectional view of a lamp body according to an embodiment;

2 is a structural diagram of a heat sink according to an embodiment;

Fig. 3 is the radiator exploded view of the embodiment of Fig. 2;

4 is a structural diagram of a thermally conductive plate according to an embodiment;

Fig. 5 is the exploded view of the partial structure in the embodiment of Fig. 3;

6 is a structural diagram of a heat exchange box and a second radiator according to an embodiment;

Fig. 7 is the enlarged view of A part of the embodiment of Fig. 6;

FIG. 8 is a structural diagram of a lamp according to an embodiment;

FIG. 9 is a cross-sectional view of the lamp of the embodiment of FIG. 8 .

Reference numerals: 100-heat exchange box, 111-first diversion inlet, 112-second diversion outlet, 113-first conduction groove, 114-second conduction groove, 115-liquid tank, 121-inlet Liquid port, 122-liquid outlet, 123-groove; 21-first fan, 22-second fan, 23-third fan, 24-second pump; 3-first heat dissipation row, 30-second heat dissipation Row, 31-flat tube, 32-fin, 33-vent hole; 4-lamp arm, 400-third cavity, 41-sleeve; 5-conducting plate, 51-first diversion outlet, 52-th Two guide inlets, 53-fin; 8-lamp base, 800-fourth cavity, 9-lamp body, 90-partition, 910-first cavity, 920-second cavity, 93-light source, 94 - Vents.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

The terms of the present invention relate to: direction, such as up, down, left, right, front, back, and the priority is based on the direction of the illustration, the context, and the perspective of the drawing. The order, such as the first and the second, is only used to distinguish technical features, and does not imply a specific quantity or sequence relationship. And/or, such as A and/or B, means that there are three embodiments of A and B, A and B.

In addition, the various embodiments of the present invention described below are not limited to the technical solutions directly recorded in each paragraph, and each aspect, each paragraph, the embodiment in the paragraph, and the technical features in the embodiment are not in conflict with each other. It can be combined arbitrarily, and the combined technical solutions still fall within the scope of the description of the present invention.

first

Embodiment 1

As shown in Figures 1-9, a lamp body includes a casing, a light source and a heat sink.

The housing includes a sealed first cavity.

The light source is arranged in the first cavity.

The heat sink includes a first heat sink and a second heat sink.

The first radiator includes a cooling medium, the cooling medium is a gas and/or a first cooling liquid, and the cooling medium circulates inside and outside the first cavity for heat exchange.

The second radiator is disposed outside the first cavity, and the second radiator is connected to the heat conducting surface of the light source for heat exchange.

Since the light source 93 is disposed in the sealed first cavity 910, it can be prevented from being damaged by water. For the heat generated by the light source, part of the heat is first transferred to the cooling medium, and then the cooling medium is circulated in and outside the first cavity through natural convection or forced convection to dissipate heat; part of the heat is transferred to the first cavity through the heat conduction surface of the light source. Outside the cavity, the heat of the second heat sink is not transferred into the first cavity 910 but is directly discharged to the outside of the first cavity 910 .

Optionally, the heat conduction surface of the light source 93 is the side surface of the light source and/or the bottom surface of the light source. In addition, the light emitting surface of the light source also emits heat and escapes into the first cavity 910 , but is not used as a heat conduction surface for the purpose of emitting light.

Optionally, the first cavity 910 is provided with a heating device for processing lighting effects. Since the above modules are driven by the motor and controlled by the PCB board, the motor and the PCB board also generate heat, and the heat dissipated into the first cavity 910 mainly comes from the friction between the light source 93, the motor, the PCB board and the parts.

Optionally, the second heat sink is connected to the heat conducting surface of the light source 93 . In some embodiments, the connection may be a side surface surrounding the light source in a non-contact manner and/or a bottom surface surrounding the light source in a non-contact manner; in other embodiments, the connection may be a side surface of the light source and/or a contact surface The underside of the light source. In still other embodiments, the connection may be attached to the bottom surface of the light source, while non-contact surrounding the side surface of the light source or attached to the side surface of the light source.

Optionally, the arrangement of the light source 93 in the first cavity 910 includes the following situations: In some embodiments, the light source 93 is arranged at the boundary between the inside of the first cavity 910 and the outside of the first cavity 910 to make the light source 93 The heat-conducting surface is exposed outside the first cavity 910; thus, the second heat sink does not need to extend into the first cavity 910 to connect the light source 93, and at the same time, the heat of the heat-conducting surface of the light source 93 and the second heat sink will not be heated The heat is transferred into the first cavity 910 and directly discharged to the outside of the first cavity 910 . In other embodiments, as shown in FIG. 1 , the light source 93 is disposed at the boundary between the inside of the first cavity 910 and the outside of the first cavity 910 , so that the side of the light source 93 is placed in the first cavity 910 and the light source 93 is The bottom surface is exposed to the outside of the first cavity 910 ; thus, the second heat sink does not need to extend into the first cavity 910 to connect the light source, and the light source 93 does not span the inside of the first cavity 910 and the outside of the second cavity 910 , so that the structure is compact, and it is more convenient to fit the bottom surface of the light source 93 with the second heat sink to facilitate the sealing of the first cavity 910, and at the same time, the heat of the second heat sink will not be transferred to the first cavity 910. is directly discharged to the outside of the first cavity 910 .

In some embodiments, the light source 93 is disposed at the boundary between the inside of the first cavity 910 and the outside of the first cavity 910, so that the heat conduction surface of the light source 93 is exposed outside the first cavity 910, and the second heat sink can protrude into the first cavity 910. The cavity 910 absorbs the heat emitted by the light emitting surface of the light source 93 . In other embodiments, the light source 93 is disposed at the boundary between the inside of the first cavity 910 and the outside of the first cavity 910 so that the side surface of the light source 93 is placed in the first cavity 910 and the bottom surface of the light source 93 is exposed to the first cavity Outside the body 910 , the second heat sink can extend into the first cavity 910 to be in contact with the side surface of the light source 93 or surround it in a non-contact manner. In still other embodiments, the light source 93 is arranged in the first cavity 910 and the heat conduction surface of the light source 93 is completely placed in the first cavity 910 , and the second heat sink can extend into the first cavity 910 to connect with the light source. Thermal surface connection.

Embodiment 2

Optionally, the first radiator further includes a circulating drive member and a first heat dissipation row, the first heat dissipation row is arranged outside the first cavity for heat exchange, the first cavity is communicated with the first heat dissipation row, and the circulation drive is performed. The component promotes the circulating flow of the cooling medium in the first cavity and between the first heat sinks; the circulating driving component is the first fan or the first pump.

In some embodiments, as shown in FIGS. 1 to 2 , the first heat sink further includes a first fan 21 and a first heat dissipation row 3 , and the first heat dissipation row 3 is provided outside the first cavity 910 for heat dissipation. Exchange, the first cavity 910 communicates with the first heat dissipation row 3 , and the first fan 21 promotes the circulation of gas in the first cavity 910 and between the first heat dissipation row 3 . The gas is used as the cooling medium, and the gas can be in close contact with the heat-generating components so as to fully absorb heat. After the first fan 21 is started, a negative pressure cavity is formed in the first heat dissipation row 3 and a positive pressure cavity is formed in the first cavity 910 for driving. The gas flows, the gas can enter the cooling cycle without additional packaging, light and safe.

In some embodiments, the first heat sink further includes a first pump and a first heat sink, the first heat sink is provided outside the first cavity for heat exchange, and the first cavity communicates with the first heat sink, The first pump promotes the circulating flow of the first cooling liquid in the first cavity and between the first heat sinks. Further, the first cooling liquid is packaged by a heat conducting pipe such as copper or aluminum to circulate in the first cavity, so as to absorb heat from the gas in the cavity or the heat conducting surface of the light source. Using liquid fluid as the cooling medium, the solid can quickly absorb heat to the heating module, and the flowing first cooling liquid can quickly absorb and transfer the heat, and the heat transfer effect is good.

Embodiment 3

Optionally, the radiator further includes a heat exchange box 100 connected to the heat-conducting surface of the light source, the heat exchange box 100 is provided with a conduction groove, and the conduction groove is respectively communicated with the first heat dissipation row 3 and the first cavity 910, and the circulation is carried out. The driving member urges the cooling medium to circulate and flow in the first cavity 910 , among the conducting grooves and the first heat dissipation fins 3 . The heat-conducting surface of the light source 93 transfers the heat to the heat exchange box 100, the heat is conducted to the conduction groove, the cooling medium flows in the conduction groove and absorbs heat continuously, and the circulating driving element urges the cooling medium to flow in the first cavity 910 and the conduction groove. 3. The first heat sink 3 circulates, and the heat enters the first cavity 910 with the cooling medium to absorb heat and flows into the first heat sink 3 to release heat, and the cooling medium after heat release returns to the conduction groove and enters the next round Cooling cycle.

In some embodiments, as shown in FIGS. 3 and 5 , the conducting groove includes a first conducting groove 113 and a second conducting groove 114 . The conduction groove 114 is provided with a first diversion outlet 112 , the first diversion inlet 111 is communicated with the first heat sink 3 and the first cavity 910 respectively, and the first diversion outlet 112 is respectively connected with the first heat sink 3 and the first cavity 910 . The cavities 910 communicate with each other. By narrowing the lead-out inlet, the sealed connection between the first cavity and the first heat sink 3 is facilitated.

In some embodiments, as shown in FIG. 1 , FIG. 3 , and FIG. 5 , the cooling medium flows out from the first heat dissipation row 3 , and then passes through the first guide inlet 111 , the first conduction groove 113 , and the first cavity 910 in sequence. The inner part, the second conduction groove 114 and the first diversion outlet 112 finally flow back to the first heat sink 3 to complete a round of cooling cycle through a single circulation path. In other embodiments, the first conducting slot 113 is provided with a first conducting inlet and a first conducting outlet, the second conducting slot 114 is also provided with a first conducting inlet and a first conducting outlet, the first conducting The cooling liquid flows out from the first heat sink 3, and then sequentially passes through the first inflow inlet of the first conducting groove 113, the first conducting groove 113, the first cavity 910, the first conducting groove 113 and its first conducting groove 113. The diversion outlet finally flows back to the first heat sink 3; the airflow flows out from the first heat sink 3, and then passes through the first diversion inlet of the second conduction slot 114, the second conduction slot 114, and the first cavity 910 in sequence The inner and second conducting grooves 114 and its first diversion outlet finally flow back to the first heat sink 3; a round of cooling cycle is completed through a double circulation path.

Embodiment 4

Optionally, the radiator further includes a heat exchange box connected to the heat conduction surface of the light source, the heat exchange box is provided with a liquid tank, the second radiator includes a second pump, a second cooling liquid and a second heat dissipation row, and the second heat dissipation The row is arranged outside the first cavity for heat exchange, the second heat dissipation row is communicated with the liquid tank, and the second pump promotes the circulation of the second cooling liquid between the liquid tank and the second heat dissipation row.

On the basis of Embodiment 1, the radiator further includes a heat exchange box 100 connected to the light source 93, the heat exchange box 100 is provided with a liquid tank 115, and the second radiator includes the second pump 24, the second coolant and the first Two heat sinks 30, the second heat sink 30 is provided outside the first cavity 910 for heat exchange, the second heat sink 30 communicates with the liquid tank 115, and the second pump 24 pushes the second cooling liquid in the liquid tank 115 and the first cooling liquid. Circulation flows between the two heat sinks 30 . The heat conduction surface of the light source transfers heat to the second cooling liquid of the heat exchange box 100 , the second cooling liquid flows in the liquid tank 115 and absorbs heat continuously, and the second pump 24 promotes the second cooling liquid to flow in the liquid tank and the second heat dissipation row 30 . The heat follows the second cooling liquid into the second radiator row 30 to release heat, and the second cooling liquid after the heat release returns to the liquid tank 115 to enter the next round of cooling cycle, through the liquid cooling cycle to improve the heat transfer efficiency.

On the basis of Embodiment 2, the radiator further includes a heat exchange box 100 connected to the light source 93 , the heat exchange box 100 is provided with a liquid tank 115 , and the second radiator includes the second pump 24 , the second coolant and the first Two heat sinks 30, the second heat sink 30 is provided outside the first cavity 910 for heat exchange, the second heat sink 30 communicates with the liquid tank 115, and the second pump 24 pushes the second cooling liquid in the liquid tank 115 and the first cooling liquid. Circulation flows between the two heat sinks 30 . Through the double cooling cycle to improve the heat transfer efficiency, the heat in the first cavity can be quickly dissipated to the outside of the first cavity.

On the basis of Embodiment 3, the radiator further includes a heat exchange box 100 connected to the heat conduction surface of the light source, the heat exchange box is provided with a liquid tank 115, and the second radiator includes the second pump 24, the second coolant and the first Two heat sinks 30, the second heat sink 30 is provided outside the first cavity 910 for heat exchange, the second heat sink 30 communicates with the liquid tank 115, and the second pump 24 pushes the second cooling liquid in the liquid tank 115 and the first cooling liquid. Circulation flows between the two heat sinks 30 . Through the liquid tank 115 and the conduction groove of the heat exchange box 100, the heat generated by the heat conduction surface of the light source 93 is quickly transferred to the liquid tank 115 and the conduction groove of the heat exchange box 100, and the second cooling liquid of the liquid tank 115 can quickly Most of the heat is absorbed and then enters the cooling cycle of the second radiator, and a small part of the heat is conducted to the conduction groove and then enters the cooling cycle of the first radiator, fully taking away the heat dissipated by the heat conduction surface of the light source 93 .

In some embodiments, the first radiator 3 and the second radiator 30 are arranged at intervals, and the two are fixed on the heat exchange box 100 together, so that the structure is compact and the occupied space is reduced.

In some embodiments, the circulation direction of the second cooling liquid may be that the second pump 24 draws the second cooling liquid from the liquid tank 115 or the second pump 24 supplies the second cooling liquid to the liquid tank 115 .

In some embodiments, the coolant in both the first radiator and the second radiator may be water. In other embodiments, the coolant in both the first radiator and the second radiator may be antifreeze.

Embodiment 5

Optionally, the first heat sink and/or the second heat sink are provided with fins and flat tubes, the fins are corrugated, the flat tubes have microchannels, and the fins and the flat tubes are stacked to make the fins The crest of the wave contacts the flat tube. The heat transfer efficiency is improved by changing the shape of the flow cross section, forming turbulent flow and increasing the heat exchange area.

In some embodiments, the first heat sink 3 is provided with fins 32 and flat tubes 31 , the fins 32 are corrugated, the flat tubes 31 have micro-channels, and the fins 32 and the flat tubes 31 are stacked to make the fins 32 The crest of 32 contacts the flat tube 31 . In other embodiments, the second heat dissipation radiator 30 is provided with fins 32 and flat tubes 31, the fins 32 are corrugated, the flat tubes 31 have microchannels, and the fins 32 and the flat tubes 31 are stacked to make the fins 32 The crest of the sheet 32 contacts the flat tube 31 . In still other embodiments, the first heat sink 3 and the second heat sink 30 are both provided with fins 32 and flat tubes 31 , the fins 32 are corrugated, the flat tubes 31 have microchannels, and the fins 32 The flat tubes 31 are stacked so that the crests of the fins 32 contact the flat tubes 31 .

In some embodiments, the fins 32 and the flat tubes 31 are made of aluminum, which can maintain good heat dissipation performance and make the structure lighter. In other embodiments, the materials of the fins 32 and the flat tubes 31 may be one or more of aluminum, gold, copper, silver, and the like.

Embodiment 6

Optionally, the radiator further includes a second fan, and the second fan has a waterproof structure to perform forced convection on the first heat dissipation row and/or the second heat dissipation row. Through the layer-by-layer associated heat transfer structure, the heat can be efficiently dissipated to the outside of the first cavity.

In some embodiments, since the fins 32 and the flat tubes 31 are stacked so that the wave crests of the fins 32 contact the flat tubes 31 , straight ventilation holes 33 are formed at the corrugations, and the heat radiated by the fins 32 and the flat tubes 31 For the gas transferred into the ventilation holes 33 , the air outlet of the second fan 22 sends air toward the ventilation holes 33 to force convection in the ventilation holes 33 . In other embodiments, the difference compared with the previous embodiments is that the air inlet of the second fan 22 draws air toward the ventilation hole 33 to force convection in the ventilation hole 33 . In the straight ventilation holes 33, the gas can flow rapidly, and the corrugated fins increase the heat exchange area, which can continuously blow away or extract the heat-absorbing gas in the ventilation holes. The interleaved cooling or the interleaved cooling of the liquid fluid and the liquid fluid complements each other to greatly improve the heat transfer efficiency, and can efficiently dissipate heat to the outside of the first cavity 910 .

On the basis of Embodiments 1, 2 or 1, 2, and 3, the radiator further includes a second fan 22, and the second fan 22 has a waterproof structure to perform forced convection on the first heat dissipation row 3, thereby improving the The heat exchange efficiency of a radiator.

On the basis of Embodiments 1 and 4, the radiator further includes a second fan 22, which has a waterproof structure to force convection on the second radiator row 30, thereby improving the heat exchange efficiency of the second radiator.

On the basis of Embodiments 1, 2, 4 or Embodiments 1, 2, 3, and 4, the radiator further includes a second fan 22, and the second fan has a waterproof structure to dissipate heat to the first heat dissipation row 3 and the second fan The rows 30 perform forced convection, thereby increasing the heat exchange efficiency between the first heat sink and the second heat sink. Further, as shown in FIGS. 2 to 3 , there are several situations for the working position or function of the second fan: in some embodiments, the second fan 22 is respectively arranged on the outer side of the first heat dissipation row 3 and the second heat dissipation row 30 In other embodiments, the second fans are respectively arranged on the inner side of the first radiator 3 and the inner side of the second radiator 30 to supply air to each radiator; in some other implementations In an example, the second fan is arranged in the middle area of the first heat dissipation row 3 and the second heat dissipation row 30 to draw air to one of the heat dissipation exhausts and supply air to the other heat dissipation exhaust. In addition, the second fan 22 can also draw or supply air to the intermediate area between the first heat dissipation row 3 and the second heat dissipation row 30 .

In some embodiments, the forced convection is to draw air from one side of the first radiator 3 or the second radiator 30, supply air to one side, draw and supply air from one side, draw air from both sides, supply air from both sides, Draw air on one side and supply air on the other. In other embodiments, the forced convection is one-side air extraction, single-side air supply, both air extraction and air supply at one side, bilateral air extraction, and dual-side air supply to the first heat dissipation row 3 and the second heat dissipation row 30 , exhaust air on one side and supply air on the other side.

Embodiment 7

Optionally, the radiator further includes a heat-conducting plate, one side of the heat-conducting plate is connected to the heat-conducting surface of the light source for heat exchange, and the other side of the heat-conducting plate is hermetically connected to the liquid tank of the heat exchange box. Optionally, the radiator further includes a heat-conducting plate, one side of the heat-conducting plate is connected to the heat-conducting surface of the light source for heat exchange, and the other side of the heat-conducting plate is sealedly connected to the liquid groove and conduction groove of the heat exchange box, and the heat-conducting plate is A through hole is opened so that the conducting groove communicates with the first cavity.

In some embodiments, the heat-conducting plate 5 is integrally protruded with fins 53, and the fins are arranged at intervals to form gaps, and the gaps are used to circulate the second cooling liquid. In the liquid tank 115, the heat transfer efficiency is improved by increasing the heat exchange area. In other embodiments, the difference compared with the previous embodiments is that the liquid tank 115 is provided with fins 53 , and one end of the fins abuts against the heat conducting plate 5 .

In some embodiments, the liquid tank 115 is provided with a liquid inlet 121, a liquid discharge port 122 and a groove 123, and the second heat dissipation row 30 communicates with the liquid inlet 121 and the liquid discharge port 122 of the liquid tank 115 respectively. The second pump 24 urges the second cooling liquid to enter the liquid tank 115 from the liquid inlet 121 , the second cooling liquid flows through the gap along the groove 123 on one side, and then flows into the liquid discharge port 122 along the groove 123 on the other side , so that the second cooling liquid circulates between the liquid tank 115 and the second heat dissipation row 30 , thereby facilitating the second cooling liquid to flow through the gaps between the fins to take away heat.

In some embodiments, as shown in FIG. 3 , the heat conducting plate is provided with through holes, the through holes have a first guide outlet 51 and a first guide inlet 52 , and the first guide outlet 51 and the first guide inlet 52 are large through holes. The inner diameter of the large through hole does not exceed the outer diameter of the inlet and outlet of the first fan, and the large through hole communicates with the inlet and outlet of the first fan to reduce resistance and facilitate gas circulation. In other embodiments, as shown in FIG. 4 , the heat-conducting plate 5 has a first tuyere 51 and a second tuyere 52 , the first diversion outlet 51 and the first diversion inlet 52 are a collection of micro-shaped holes, and a collection of micro-shaped holes It communicates with the heat transfer pipe that packs the first cooling liquid. On the one hand, it is convenient for the sealing of the micro-hole collection and the heat transfer pipe. The heat of the hot box. In addition, the micro-hole collection is also suitable for gas circulation, which is convenient to increase the contact area between the micro-hole collection and the gas. On the other hand, turbulent flow is easily formed at the micro-hole, and the heat transfer effect is better.

The heat-conducting plate 5 is a phase-change heat-conducting plate or a non-phase-change heat-conducting plate. In some embodiments, the thermally conductive plate 5 is a phase-change thermally conductive plate. In other embodiments, the thermally conductive plate 5 is a non-phase-change thermally conductive plate.

In some embodiments, the heat-conducting plate 5 is sealedly connected to the partition plate 90 , openings are provided on the surface of the partition plate 90 corresponding to the first diversion outlet 51 and the first diversion inlet 52 , and the first fan 21 is installed on the partition plate At the positions corresponding to the openings on the surface of 90 , the first fan 21 does not need to be directly connected to the heat-conducting plate 5 , so as to avoid the high temperature of the heat-conducting plate 5 from damaging the first fan 21 and airtightness.

Embodiment 8

Optionally, the housing further includes an open second cavity, and the first heat sink and/or the second heat sink are arranged in the second cavity for heat exchange.

In some embodiments, the first cavity 910 described in the first to seventh embodiments is the second cavity 920 .

In some embodiments, the second cavity 920 is provided with vents 94 in four directions, front, rear, left, right, and so on, so that the second cavity can communicate with the lamp body.

In some embodiments, as shown in FIGS. 1 to 2 , the first fan 21 is arranged in the first cavity 910 , the air inlet of the first fan 21 communicates with the first diversion outlet 51 of the heat conducting plate 5 , and the first heat dissipation Both the row 3 and the second radiator are arranged in the second cavity 920 , which makes the structure compact, and prevents the first fan from occupying the space of the second cavity and expanding the volume of the second cavity 920 .

In some embodiments, when the lamp body works underwater, the housing can prevent foreign matter from entering the second cavity 920 and damage the first heat sink 3 and the second heat sink, and also prevent foreign matter from covering the first heat sink 3 and the first heat sink 3 and the second heat sink. The second heat sink 30 affects heat dissipation and plays a protective role. In other embodiments, when the lamp body works on water, the second cavity 920 of the housing plays an aesthetic and protective role.

the second aspect

Embodiment nine

A lamp includes lamp bodies 9 in any combination of the first aspect.

In some embodiments, the light fixture may be a panel light, moving head light, follow spot light, car show light, down light, street light, search light and the like.

the third aspect

Embodiment ten

As shown in Figures 1 to 9, a moving head lamp includes a lamp body 9, a lamp arm 4, a lamp socket 8 and a radiator, the lamp body 9 includes a housing and a light source 93, and the housing includes a sealed first cavity 910, the light source 93 is arranged in the first cavity; the lamp arm 4 has an open third cavity 400, and the lamp arm 4 is rotatably connected with the lamp body 9; the lamp holder 8 has a closed fourth cavity 800, and the lamp holder 8 It is rotatably connected with the lamp arm 4; the radiator includes a first radiator and a second radiator; the first radiator includes a cooling medium, the cooling medium is gas or a first cooling liquid, and the cooling medium is inside the first cavity and outside the first cavity The circulation flow is used for heat exchange; the second heat sink is arranged outside the first cavity, and the second heat sink is connected with the heat conduction surface of the light source for heat exchange.

Thanks to the characteristics of the lamp body 9 being compact, lightweight and high in heat dissipation efficiency, the lamp body 9, the lamp arm 4 and the lamp holder 8 do not need to increase the volume or weight, and the lamp arm 4 connects the lamp arm and the lamp body. The rotating shaft assembly does not need to increase the load-bearing capacity, rigidity and strength accordingly to maintain stability, so that the lamp structure is compact and lightweight.

In some embodiments, the lamp body 9 of the third aspect includes the lamp body 9 described in any combination of the first aspect.

In other embodiments, the lamp body 9 of the third aspect refers to the lamp body 9 described in any combination of the first aspect, and the difference lies in: the installation position of the first heat sink 3 and/or the installation of the second heat sink 30 For the location, see Sections Eleven to Twelve of Embodiments.

In some embodiments, the lamp arm 4 and the lamp body 9 are rotatably connected through a first rotating shaft assembly, the first rotating shaft driver is provided in the first cavity 910, and the first rotating shaft driver is connected with the first rotating shaft assembly for driving the lamp The body 9 rotates relative to the lamp arm 4; the lamp holder 8 and the lamp arm 4 are rotatably connected through the second shaft assembly, the second shaft driver is arranged in the fourth cavity 800, and the second shaft driver is connected with the second shaft assembly for driving The lamp arm 4 rotates relative to the lamp socket 8 . Since both the first cavity 910 and the fourth cavity 800 are sealed, even if the third cavity 400 is open, the normal operation of the lamp will not be affected, so that the structure of the moving head lamp is compact and lightweight.

In some embodiments, the first rotating shaft driver and the second rotating shaft driver are both provided with a waterproof structure, and the first rotating shaft driver and the second rotating shaft driver are disposed in the third cavity 400 which is openly disposed. Since both the first rotating shaft driver and the second rotating shaft driver are provided with a waterproof structure, even if the third cavity 400 is opened, the normal operation of the lamp will not be affected. In some comparative examples, since the third cavity 400 is airtightly arranged, the first shaft driver and the second shaft driver are arranged in the airtight third cavity 400 , so it is necessary to add a heat dissipation module to the lamp arm 4 , thereby causing the lamp The volume and weight of the arm 4 are increased, thereby increasing the volume and weight of the light fixture.

In some embodiments, the axial center of the first rotating shaft assembly and the axial center of the second rotating shaft assembly are hollow and/or radially open, the first cavity 910 and/or the second cavity 920 and the third cavity The body 400 can communicate through the first shaft assembly; the third cavity 400 and the fourth cavity 800 can communicate through the second shaft assembly; the first cavity 910 and/or the second cavity 920 and the fourth cavity 800 can pass through The first rotating shaft assembly communicates with the second rotating shaft assembly.

Further, the cavities communicate with each other through a sleeve 41, and the sleeve 41 passes through the axial center of the first rotating shaft assembly and/or the second rotating shaft assembly for wiring. In some embodiments, the sleeve 41 passes through the axial center of the first shaft assembly and/or the second shaft assembly for circulating the cooling medium. In other embodiments, the sleeve 41 passes through the axial center of the first rotating shaft assembly and/or the second rotating shaft assembly for routing and circulating cooling medium.

Embodiment eleven

Optionally, the first heat sink of the first heat sink is arranged in the second cavity for heat exchange, and the second heat sink of the second heat sink is arranged in the third cavity or the fourth cavity for heat exchange. for heat exchange.

In some embodiments, the first heat sink further includes a circulating driving member and a first heat dissipation row 3 , the first heat dissipation row 3 is provided in the second cavity 920 for heat exchange, and the first cavity 910 is connected to the first The radiating rows 3 communicate with each other, and the circulating driving member promotes the circulation of the cooling medium in the first cavity 910 and between the first radiating rows 3; the circulating driving member is the first fan 21 or the first pump. The second radiator includes a second pump 24, a second cooling liquid and a second heat dissipation row 30. The second heat dissipation row 30 is provided in the third cavity 400 for heat exchange, and the second heat dissipation row 30 communicates with the liquid tank 115. The second pump 24 promotes the circulating flow of the second cooling liquid between the liquid tank 115 and the second heat sink 30 . Optionally, the circulating driving member is provided in the first cavity 910 or the second cavity 920 . Optionally, the second pump 24 may be provided in any one of the first cavity 910 , the second cavity 920 , the third cavity 400 , and the fourth cavity 800 . In other embodiments, the difference compared with the foregoing embodiments is that the second heat dissipation fins 30 are disposed in the fourth cavity 800 for heat exchange.

In some embodiments, since the fourth cavity 800 is sealed, in order to improve the heat dissipation efficiency, the radiator further includes a third fan 23 , the third fan 23 is arranged in the third cavity 400 of the lamp arm 4 , and the third fan 23 has a waterproof structure for forced convection on the upper end face of the lamp socket 8 .

Embodiment 12

Optionally, the first heat sink of the first heat sink is arranged in the third cavity for heat exchange, and the second heat sink of the second heat sink is arranged in the second cavity, the third cavity, Any of the fourth cavities is used for heat exchange.

In some embodiments, the first heat sink further includes a circulating driving member and a first heat dissipation row 3 , the first heat dissipation row 3 is provided in the third cavity 400 for heat exchange, and the first cavity 910 is connected to the first The radiating rows 3 communicate with each other, and the circulating driving member promotes the circulation of the cooling medium in the first cavity 910 and between the first radiating rows 3; the circulating driving member is the first fan 21 or the first pump. The second radiator includes a second pump 24, a second cooling liquid and a second heat dissipation row 30. The second heat dissipation row 30 is provided in the second cavity 920 for heat exchange, and the second heat dissipation row 30 communicates with the liquid tank 115. The second pump 24 promotes the circulating flow of the second cooling liquid between the liquid tank 115 and the second heat sink 30 . Optionally, the circulating driver is provided in the first cavity 910 or the third cavity 400 . Optionally, the second pump 24 may be provided in any one of the first cavity 910 , the second cavity 920 , the third cavity 400 , and the fourth cavity 800 . In other embodiments, the difference compared with the previous embodiments is that the second heat dissipation fin 30 is provided in the third cavity 400 or the fourth cavity 800 for heat exchange, and in this case, the second cavity 920 Only by accommodating the heat box, the volume of the second cavity 920 can be greatly reduced or the second cavity 920 can be directly defaulted, thereby greatly reducing the volume and weight of the lamp body; in some other embodiments, the second cavity The 920 does not need to open the vent 94, the first cavity 910 and the second cavity 920 also do not need to be partitioned, and the first cavity 910 does not need to be sealed, thereby simplifying the installation structure and making the structure compact and lightweight.

Fourth aspect

Embodiment thirteen

A method for dissipating heat from a lamp body, comprising: a light source transfers heat to a sealed first cavity, the heat in the first cavity is transferred from the inside of the first cavity to the outside of the first cavity through a cooling medium, and the heat conduction surface of the light source The heat is transferred to the outside of the first cavity; wherein, the cooling medium first absorbs heat in the first cavity, the cooling medium after heat absorption flows from the first cavity to the outside of the first cavity, and the cooling medium after heat absorption is in the first cavity. Heat is released outside a cavity, and the cooling medium after heat release is returned from outside the first cavity to the first cavity to enter the next round of heat absorption, and so on and so forth.

The heat dissipation method of the lamp body dissipates heat through two sets of cooling circulation paths. A cavity 910 emits heat, absorbs and emits heat in different independent spaces, and the heat does not interfere with each other, so the heat can be quickly and effectively transferred out of the lamp body 9; on the other hand, the heat conduction surface of the light source 93 directly The heat is transferred out of the lamp body 9, and the heat dissipation path is shortened to improve the heat dissipation efficiency.

In some embodiments, a method for dissipating heat from a lamp body includes: the light source 93 transfers heat to a sealed first cavity 910 , and the heat in the first cavity 910 is dissipated from the first cavity 910 through a cooling medium. The heat is transferred to the open second cavity 920, and the heat conduction surface of the light source 93 transfers the heat to the second cavity 920; wherein, the cooling medium first absorbs heat in the first cavity 910, and the cooling medium after heat absorption Flowing from the first cavity 910 to the second cavity 920 , the cooling medium after heat absorption releases heat in the second cavity 920 , and the cooling medium after heat release returns from the second cavity 920 to the first cavity 910 Enter the next round of endothermic, and so on and so forth.

In some embodiments, a method for dissipating heat from a lamp includes: the light source 93 transfers heat to a sealed first cavity 910 , and the heat in the first cavity 910 is transferred from the first cavity 910 through a cooling medium. To the open second cavity 920 , the heat conduction surface of the light source 93 transfers heat to the third cavity 400 or the fourth cavity 800 ; wherein, the cooling medium first absorbs heat in the first cavity 910 and absorbs heat The latter cooling medium flows from the first cavity 910 to the second cavity 920, the heat-absorbing cooling medium releases heat in the second cavity 920, and the heat-releasing cooling medium returns from the second cavity 920 to the second cavity 920. A cavity 910 enters the next round of heat absorption, and so on.

In some embodiments, a method for dissipating heat from a lamp includes: the light source 93 transfers heat to a sealed first cavity 910 , and the heat in the first cavity 910 is transferred from the first cavity 910 through a cooling medium. To the open third cavity 400, the heat conduction surface of the light source 93 transfers heat to any cavity of the second cavity 920, the third cavity 400, and the fourth cavity 800; The cavity 910 absorbs heat, the cooling medium after heat absorption flows from the first cavity 910 to the second cavity 920, the cooling medium after heat absorption releases heat in the second cavity 920, and the cooling medium after the heat release The cooling medium returns from the second cavity 920 to the first cavity 910 to enter the next round of heat absorption, and so on and so forth.

In some embodiments, any combination of the first aspect to the third aspect can be applied to the method for dissipating heat from a lamp body and a method for dissipating heat from a lamp.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (18)

1. A lamp body, comprising:

the shell comprises a first cavity arranged in a sealing manner;

the light source is arranged in the first cavity;

a heat sink including a first heat sink and a second heat sink;

the first radiator comprises a cooling medium, the cooling medium is gas and/or first cooling liquid, and the cooling medium circulates and flows outside the first cavity in the first cavity for heat exchange;

and the second radiator is arranged outside the first cavity and is connected with the heat conducting surface of the light source for heat exchange.

2. The lamp body of claim 1, wherein: the first radiator also comprises a circulating driving piece and a first radiating bar, the first radiating bar is arranged outside the first cavity body and used for heat exchange, the first cavity body is communicated with the first radiating bar, and the circulating driving piece enables a cooling medium to circularly flow in the first cavity body and between the first radiating bars; the endless drive is a first fan or a first pump.

3. The lamp body of claim 2, wherein: the radiator further comprises a heat exchange box connected with the light source heat conducting surface, the heat exchange box is provided with a conduction groove, the conduction groove is communicated with the first heat dissipation bar and the first cavity respectively, and the circulating driving piece enables a cooling medium to circularly flow in the first cavity, between the conduction groove and the first heat dissipation bar.

4. A lamp body according to any one of claims 2 to 3, wherein: the radiator further comprises a heat exchange box connected with the light source heat conducting surface, the heat exchange box is provided with a liquid tank, the second radiator comprises a second pump, second cooling liquid and a second heat dissipation row, the second heat dissipation row is arranged outside the first cavity body and used for heat exchange, the second heat dissipation row is communicated with the liquid tank, and the second pump enables the second cooling liquid to circularly flow between the liquid tank and the second heat dissipation row.

5. The lamp body of claim 4, wherein: the first heat dissipation row and/or the second heat dissipation row are/is provided with fins and flat pipes, the fins are corrugated, the flat pipes are provided with micro channels, and the fins and the flat pipes are stacked so that wave crests of the fins contact the flat pipes.

6. The lamp body of claim 4, wherein: the radiator further comprises a second fan which is provided with a waterproof structure so as to perform forced convection on the first heat dissipation row and/or the second heat dissipation row.

7. The lamp body of claim 4, wherein: the radiator still includes the heat-conducting plate, and the one side of heat-conducting plate is connected with the heat conduction face of light source in order being used for the heat exchange, and the cistern sealing connection of heat exchange box is followed to the another side of heat-conducting plate, perhaps the another side of heat-conducting plate is seted up the through-hole so that the conduction groove communicates with each other with first cavity with the cistern and the conduction groove sealing connection of heat exchange box and heat exchange box.

8. The lamp body of claim 4, wherein: the shell further comprises a second cavity body which is arranged in an open mode, and the first heat dissipation row and/or the second heat dissipation row are/is arranged in the second cavity body and used for heat exchange.

9. The lamp body of claim 1, wherein: the radiator further comprises a heat exchange box connected with the heat conduction surface of the light source, the heat exchange box is provided with a liquid tank, the second radiator comprises a second pump, second cooling liquid and a second heat dissipation row, the second heat dissipation row is arranged outside the first cavity body and used for heat exchange, the second heat dissipation row is communicated with the liquid tank, and the second pump enables the second cooling liquid to circularly flow between the liquid tank and the second heat dissipation row.

10. The lamp body of claim 9, wherein: the second radiating row is provided with fins and flat pipes, the fins are corrugated, the flat pipes are provided with micro channels, and the fins and the flat pipes are stacked to enable wave crests of the fins to contact the flat pipes.

11. The lamp body of claim 9, wherein: the radiator further comprises a second fan, and the second fan is provided with a waterproof structure so as to perform forced convection on the second heat dissipation row.

12. The lamp body of claim 9, wherein: the radiator still includes the heat-conducting plate, and the one side of heat-conducting plate is connected with the heat conduction face of light source in order being used for the heat exchange, and the cistern sealing connection of heat exchange box is followed to the another side of heat-conducting plate, perhaps the another side of heat-conducting plate is seted up the through-hole so that the conduction groove communicates with each other with first cavity with the cistern and the conduction groove sealing connection of heat exchange box and heat exchange box.

13. The lamp body of claim 9, wherein: the shell further comprises a second cavity body which is arranged in an open mode, and the second heat dissipation row is arranged in the second cavity body and used for heat exchange.

14. A light fixture, characterized by: the lamp body according to any one of claims 1 to 3 and 5 to 13.

15. A light fixture, characterized by: comprising the lamp body of claim 4.

16. A moving head light fixture, characterized in that it comprises:

the lamp body comprises a shell and a light source, the shell comprises a first cavity arranged in a closed mode, and the light source is arranged in the first cavity;

the lamp arm is provided with a third cavity which is arranged in an open mode and is rotatably connected with the lamp body;

the lamp holder is provided with a fourth cavity which is arranged in a sealed mode, and the lamp holder is rotatably connected with the lamp arm;

a heat sink including a first heat sink and a second heat sink;

the first radiator comprises a cooling medium, the cooling medium is gas or first cooling liquid, and the cooling medium circulates and flows outside the first cavity in the first cavity for heat exchange;

and the second radiator is arranged outside the first cavity and is connected with the heat conducting surface of the light source for heat exchange.

17. Moving head light fixture according to claim 16, characterized in that: the first heat dissipation row of the first radiator is arranged in the second cavity for heat exchange, and the second heat dissipation row of the second radiator is arranged in the third cavity or the fourth cavity for heat exchange.

18. Moving head light fixture according to claim 16, characterized in that: the first heat dissipation row of the first radiator is arranged in the third cavity for heat exchange, and the second heat dissipation row of the second radiator is arranged in any one of the second cavity, the third cavity and the fourth cavity for heat exchange.

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