CN223484162U - Stereoscopic light source film and television lights and film and television lighting systems - Google Patents

Abstract

The utility model provides a stereoscopic light source type film and television lamp and a film and television lamp system. The stereoscopic light source type film and television lamp comprises a plurality of lamp panels and a liquid cooling device. The lamp panel comprises a light source and a circuit board, and the light source is arranged on the circuit board. The liquid cooling device comprises a liquid cooling box, at least one liquid cooling cavity for circulating cooling liquid is arranged in the liquid cooling box, a liquid inlet and a liquid outlet which are communicated with the liquid cooling cavity are further formed in the liquid cooling box, the liquid cooling device is provided with a plurality of heat conducting surfaces, an included angle is formed between the plurality of heat conducting surfaces, a lamp panel is assembled on at least two heat conducting surfaces, and the cooling liquid enters the liquid cooling cavity through the liquid inlet and is discharged from the liquid outlet. The stereoscopic light source type film and television lamp and the film and television lamp system can ensure that the radiating effect is better and the volume is smaller.

Description

Stereoscopic light source type video lamp and video lamp system

Technical Field

The utility model relates to the field of photographic equipment, in particular to a stereoscopic light source type film and television lamp and a film and television lamp system.

Background

Currently, light sources of video lamps can be generally classified into LED lamps and thermal light source lamps. Among them, the thermal light source lamp generally includes an incandescent lamp, a halogen lamp, and the like. Because the LED lamp has advantages such as small, the response is quick, the LED lamp gradually replaces traditional hot light source lamp. The power level of an LED lamp is often limited by the number of LEDs. To increase the power level of the LED lamp, a larger number of LED chips are required.

However, increasing a large number of LED chips results in a large area of the LED lamp, and a large area of the light emitting surface of the LED lamp. In general, when the film and television lamp is used, an optical fitting with corresponding functions is arranged on the outer side of the LED lamp according to the use requirement. If the light emitting surface of the LED lamp is large, the volume of the optical fitting is large, and meanwhile, the optical fitting is difficult to realize the optical effect. And when the quantity of the LED lamps is more, and the luminous area is larger, certain limitations exist for heat dissipation of the LED lamps, and the normal operation of the high-power LED lamps is directly influenced.

Disclosure of utility model

The utility model aims to solve the technical problems of overcoming the defects in the prior art, and provides a stereoscopic light source type film and television lamp system which can ensure better heat dissipation effect and has smaller volume.

A stereoscopic light source type film and television lamp, comprising:

A plurality of lamp panels, wherein the lamp panels comprise a light source and a circuit board, the light source is arranged on the circuit board, and

The cooling device comprises a plurality of heat conducting surfaces, wherein an included angle is formed between the plurality of heat conducting surfaces, at least two heat conducting surfaces are provided with lamp panels, and at least two lamp panels are different in luminous directions.

In one embodiment, the cooling device is a liquid cooling device, the liquid cooling device comprises a liquid cooling box, at least one liquid cooling cavity for circulating cooling liquid is arranged in the liquid cooling box, the liquid cooling box is further provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling cavity, and the cooling liquid enters the liquid cooling cavity through the liquid inlet and is discharged from the liquid outlet.

In one embodiment, the lamp panel is detachably disposed on the heat conducting surface.

In one embodiment, the liquid cooling box is in a polyhedron shape, and the liquid inlet and the liquid outlet are positioned on the same side surface of the liquid cooling box.

In one embodiment, the liquid cooling box comprises a plurality of sub liquid cooling boxes, each sub liquid cooling box is provided with a sub liquid cooling cavity, the sub liquid cooling boxes are mutually obliquely spliced, each sub liquid cooling box comprises a first mounting plate and a second mounting plate which are oppositely arranged, the outer side face of each first mounting plate is the heat conducting surface, and each second mounting plate is provided with a first communication pipe and a second communication pipe which are communicated with the sub liquid cooling cavity.

In one embodiment, the liquid cooling device further comprises a converging box, the liquid inlet and the liquid outlet are arranged on the converging box, a converging cavity is arranged in the converging box, and the converging cavity is communicated with the liquid cooling cavity.

In one embodiment, the cooling box further comprises a mounting frame, wherein the mounting frame is provided with a plurality of mounting surfaces which are obliquely arranged with each other, and the second mounting plate of the cooling box is mounted on the mounting surfaces.

In one embodiment, the second mounting plate of the sub-liquid cooling box is further provided with a circuit pipeline for passing through the cable of the lamp panel, the mounting surface is provided with a first via hole, a second via hole and a third via hole, the first via hole is used for passing through the first communicating pipe, the second via hole is used for passing through the second communicating pipe, and the third via hole is used for passing through the circuit pipeline.

In one embodiment, the optical accessory comprises a mounting frame, and the mounting frame is arranged on the mounting frame.

In one embodiment, the liquid cooling box is an integral structure.

In one embodiment, the liquid cooling device further comprises a liquid cooling box, a cooler and a pressure pump are arranged in the liquid cooling box, a liquid inlet pipe and a liquid outlet pipe are further arranged in the liquid cooling box, the liquid inlet pipe is communicated with the liquid inlet, the liquid outlet pipe is communicated with the liquid outlet, the cooler is used for providing circulating cooling liquid for the liquid cooling device, and the pressure pump is communicated with the circulation.

In one embodiment, the device further comprises a power supply control device, wherein the power supply control device is electrically connected with the lamp panel and the liquid cooling box, and the power supply control device is used for supplying power to the lamp panel and the liquid cooling box.

In one embodiment, the power supply control device is respectively connected with the lamp panel and the liquid cooling box in an electric signal mode, and the power supply control device controls the liquid cooling box to be started to work and then controls the lamp panel to be electrified.

In one embodiment, the cooling device comprises a plurality of semiconductor refrigeration plates, wherein the cold surfaces of the semiconductor refrigeration plates face the lamp panel, and the hot surfaces of the semiconductor refrigeration plates face away from the lamp panel.

A film and television lamp system comprising:

the stereoscopic light source type film and television lamp;

The optical fitting is arranged in front of the stereoscopic light source type film and television lamp, and the stereoscopic light source type film and television lamp is positioned on the optical axis of the optical fitting.

Compared with the prior art, the utility model has at least the following advantages:

Above-mentioned three-dimensional light source formula movie & TV lamp takes away the heat of lamp plate through the coolant liquid that flows of liquid cooling device, guarantees that the heat of each position of lamp plate homoenergetic in time gives off, has improved the radiating effect of liquid cooling device.

The liquid cooling device is provided with a plurality of heat conducting surfaces, and the plurality of heat conducting surfaces are arranged at an included angle. The plurality of heat conducting surfaces are respectively used for installing the lamp panels, so that the area of each lamp panel can be relatively reduced, heat on each lamp panel can be conveniently emitted, and the heat dissipation effect of the liquid cooling device is further improved.

And the liquid cooling device is provided with a plurality of light emitting surfaces with a plurality of angles to form a three-dimensional light emitting surface.

In the video lamp system, the diameter of the stereoscopic light source type video lamp is smaller, and the caliber of an adaptive optical fitting is relatively reduced. On the other hand, the optical fitting with smaller caliber has higher light conversion efficiency to the liquid cooling device, and improves the optical effect of the film and television lamp system.

Drawings

Fig. 1 is a perspective view of a film and television lamp system of the present embodiment;

FIG. 2 is an exploded view of the stereoscopic light source type film and television lamp portion shown in FIG. 1;

FIG. 3 is an internal schematic view of a liquid cooling box of the stereoscopic light source type film and television lamp shown in FIG. 2;

FIG. 4 is a cross-sectional view of the liquid-cooled cassette shown in FIG. 3 taken along the direction A-A;

fig. 5 is a perspective view of a stereoscopic light source type film and television lamp according to another embodiment;

FIG. 6 is an exploded view of the stereoscopic light source type film and television lamp shown in FIG. 5;

Fig. 7 is a perspective view of the video lamp system of the present embodiment with an optical fitting and a base;

FIG. 8 is an exploded view of the video light system shown in FIG. 7;

FIG. 9 is another perspective view of the video light system shown at an alternate angle;

FIG. 10 is an exploded view of the video light system shown in FIG. 9;

Fig. 11 is a schematic structural view of another embodiment of the cooling device of the stereoscopic light source type film and television lamp of the present application.

Wherein reference numerals are as follows:

1. Stereoscopic light source type film and television lamp;

10. The three-dimensional light source, 11, a light panel, 111, an LED light source, 112, a circuit board, 113, an electric connection module, 114, a cable, 13 and a lamp housing;

20. A liquid cooling device; 21, a liquid cooling box, 201, a heat conducting surface, 202, a temperature sensor, 203, a first heat conducting surface, 204, a second heat conducting surface, 205, a third heat conducting surface, 206, a fourth heat conducting surface, 207, a fifth heat conducting surface, 212 (312), a liquid inlet, 213 (313), a liquid outlet, 214, a first cooling cavity, 215, a second cooling cavity, 216, a cooling channel, 217, fins, 218, a high-temperature backflow cavity, 219 and a baffle plate;

22. Sub liquid cooling box 221, first mounting plate 222, second mounting plate 223, first communication pipe 224, second communication pipe 225, circuit pipe 23, confluence box 231, first joint 232, second joint;

30. A cooling device; 31, a liquid cooling box, 320, a semiconductor refrigeration plate, 303, a first heat conducting surface, 305, a third heat conducting surface, 307, a fifth heat conducting surface, 300, a cooling rack;

40. A base 41, bayonet structure;

50. Mounting frame, mounting surface, 511, first via hole, 512, second via hole, 513 and third via hole;

60. the liquid cooling box, 61, the pressure pump, 62, the fan, 63, the liquid inlet pipe, 64, the liquid outlet pipe;

70. 71, 72, electric wire;

2. an optical fitting.

Detailed Description

While this utility model is susceptible of embodiment in different forms, there is shown in the drawings and will herein be described in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the utility model and is not intended to limit the utility model to that as illustrated.

Thus, rather than implying that each embodiment of the present utility model must have the characteristics described, one of the characteristics indicated in this specification will be used to describe one embodiment of the present utility model. Furthermore, it should be noted that the present specification describes a number of features. Although certain features may be combined together to illustrate a possible system design, such features may be used in other combinations not explicitly described. Thus, unless otherwise indicated, the illustrated combinations are not intended to be limiting.

In the embodiments shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various elements of the utility model are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

The film and television lamp can be used in occasions such as stage, concert hall and the like, and can be generally used for stage illumination and photographic illumination. For traditional high-power video lamps, the light source is usually a halogen lamp, and the light-emitting power of the halogen lamp can reach up to kilowatt or even up to Mo Wate. For a video lamp with an LED light source, the number of LED chips is large when the light emitting power reaches up to kilowatt or up to Mo Wate. If all the LED chips are arranged on the same plane, the arrangement area of the LED chips is greatly increased. For the LED light sources with large layout area, the heat dissipation problem becomes difficult. Meanwhile, the larger area LED light source also causes larger mounting caliber of the optical fitting adapted to the LED light source, resulting in larger size of the whole optical fitting, for example, a soft light box with a diameter as long as several meters, a soft light cover, a reflecting cup, a reflecting cover, a soft light ball, a projection cylinder, a fresnel lens, an electric focusing lens, a multi-page baffle plate and the like. The large-sized optical fittings also have poor optical effect on light, and thus, inconvenience is caused to use of the high-power LED film and television lamp.

Referring to fig. 1 and 2, a stereoscopic light source type video lamp 1 provided in the present embodiment includes a stereoscopic light source 10 and a liquid cooling device 20. The stereoscopic light source 10 is provided on a cooling device, which in this example is a liquid cooling device 20. Compared with the traditional plane light source, the three-dimensional light source 10 can greatly reduce the projection area of the LED chip on the light emitting surface. In addition, the liquid cooling device 20 can timely radiate heat of the stereoscopic light source 10, and ensures that the film and television lamp with larger power can work normally.

The three-dimensional light source 10 comprises a plurality of lamp panels 11, wherein the lamp panels 11 are arranged at an included angle to form a plurality of angles of luminous surfaces, and the luminous surfaces are distributed in three-dimensional space. The stereoscopic light source 10 can reduce the area perpendicular to the irradiation direction, which is beneficial to reducing the volume of the stereoscopic light source type video lamp 1 with larger power.

The lamp panel 11 includes a light source 111 and a circuit board 112. The light source 111 is disposed on the circuit board 112. The light source 111 may be an LED light bead, an LED chip, a laser light source, or the like. When the light source 111 is an LED chip, the LED chip may be directly integrated on the circuit board using the chip-on-board packaging technology COB (chip on board). The lamp panel 11 may also be a COB panel. When the light source is lit, the light source generates heat which is transferred to the circuit board 112.

The LED chips are uniformly arranged on the circuit board 112, and the arrangement shape of the LED chips corresponds to the shape of the light emitting surface forming the lamp panel 11. The LED chip arrangement shape may be rectangular, circular, etc. When the density of the LED chips is high, the heat generated by the LED chips is high.

The lamp panel 11 is also provided with an electric connection module 113, and the electric connection module 113 can be arranged at the outer side edge of the circuit board. The circuits of the LED chips on the COB board are integrated in the electrical connection module 113, the electrical connection module 113 leads out the cable 114 outwards, and the cable 114 can be used for supplying power to the lamp panel 11 and transmitting data signals.

The electrical connection modules 113 can be communicated through cables 114, and can be electrically connected through opposite plugging. The mutually spliced lamp panels 11 can be electrically connected through the electric connection module 113, and data signal transmission is realized. It is understood that the electrical connection between the lamp panels 11 may be series or parallel. That is, the stereoscopic light source type video lamp 1 can realize the independent control of the operation state of the single lamp panel 11, and can also realize the simultaneous control of the operation states of the plurality of lamp panels 11. The operating state of the lamp panel 11 includes lighting, extinguishing, blinking, control of LED chips corresponding to different colors to adjust color temperature.

The liquid cooling device 20 has a three-dimensional shape. The liquid cooling device 20 is provided with a plurality of heat conducting surfaces 201, wherein the plurality of heat conducting surfaces 201 are arranged at an included angle, and at least two heat conducting surfaces 201 are provided with the lamp panel 11. The solid state light source 10 can be formed by mounting the heat conducting surface 201 of the liquid cooling device 20. The lamp panel 11 is mounted on the heat conducting surface 201, so that heat on the lamp panel 11 can be conveniently transferred through the heat conducting surface 201.

The side of the liquid cooling device 20 may be configured as a heat conducting surface 201. Each of the heat conducting surfaces 201 corresponds to a light emitting surface. A plurality of lamp panels 11 may be assembled on the liquid cooling device 20 to form the stereoscopic light source 10. The liquid cooling device 20 may be a cube, a polyhedron, an irregular shape, or the like, and the shape of the corresponding stereoscopic light source 10 may be a cube, a polyhedron, an irregular shape, or the like.

The lamp panel 11 is detachably disposed on the heat conducting surface 201. When one of the lamp panels 11 fails, only the lamp panel 11 needs to be disassembled and replaced, and other lamp panels 11 can continue to work normally, so that the maintenance is convenient, and the maintenance cost is saved.

Specifically, the lamp panel 11 may be detachably disposed on the heat conducting surface 201 of the liquid cooling device 20 by the fastening screw 9.

Referring to fig. 2, the liquid cooling apparatus 20 includes a liquid cooling box 21. At least one liquid cooling cavity for circulating cooling liquid is arranged in the liquid cooling box 21. The liquid cooling box 21 is also provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling cavity. The cooling liquid enters the liquid cooling cavity through the liquid inlet and is discharged from the liquid outlet. The flowing cooling liquid flows out of the liquid cooling cavity, and can take away the heat on the heat conducting surface 201, so that the heat dissipation of the lamp panel 11 is realized.

The liquid cooling box 21 includes a plurality of sub liquid cooling chambers, which are mutually communicated. Each sub-liquid cooling cavity can correspond to a heat conducting surface 201 to dissipate heat of the lamp panel 11 arranged on the heat conducting surface 201. The plurality of sub-liquid cooling cavities can be communicated in series or in parallel. As long as the circulating flow of the cooling liquid of each sub-liquid cooling chamber can be realized.

The liquid cooling cassette 21 may be of an integral structure. Each side of the liquid cooling box 21 is a heat conducting surface 201, and the lamp panel 11 is directly mounted on a plurality of sides of the liquid cooling box 21.

Specifically, the liquid cooling cassette 21 has a square shape. The two adjacent heat conducting surfaces 201 are mutually perpendicular, and the included angle between the two adjacent heat conducting surfaces 201 is a right angle. When the liquid cooling box 21 is in other shapes, such as a frustum or a polyhedron, the included angle between the heat conducting surfaces 201 may be an acute angle or an obtuse angle.

The liquid cooling cassette 21 has 6 sides. The 5 sides can be used as heat conducting surfaces 201, and the other side can be provided with a liquid inlet 212 and a liquid outlet 213, and are led out by circuits such as a liquid inlet pipe 63, a liquid outlet pipe 64, a cable 114 and the like. Or the sides may be used for assembly to secure the liquid cooling cassette 21 to an external support. Or the side surfaces can be provided with a clamping structure so as to realize mutual splicing between the liquid cooling boxes 21. Or in the case that the liquid inlet pipe 63, the liquid outlet pipe 64, the cable 114 and the like do not interfere with the operation of other lamp panels 11, the side surface can also be used as a heat conducting surface 201 for installing the lamp panels 11, so that the number of the lamp panels 11 arranged in the liquid cooling box 21 is increased.

The liquid cooling boxes 10 can be spliced with each other to form pyramid, column and other shapes. The plurality of liquid cooling boxes 10 are stacked with each other, so that the light source requirement of the photographic lamp meeting the design requirement can be formed. And when one of the liquid cooling boxes 10 is damaged, only the damaged liquid cooling box 10 is required to be disassembled and replaced, and other liquid cooling boxes 10 still work continuously, so that the liquid cooling device is convenient to maintain, and the maintenance cost is reduced.

The liquid cooling box 21 may have a liquid cooling chamber 211 formed therein, or the liquid cooling box 21 may be divided into a plurality of sub-liquid cooling chambers by a partition, a pipe, or the like. The division of the internal liquid cooling cavity of the liquid cooling box 21 is not limited herein, as long as each heat conducting surface 201 of the liquid cooling box 21 is correspondingly contacted with the liquid cooling cavity, and heat on the heat conducting surface 201 can be taken away by the cooling liquid. The liquid cooling box 21 is filled with low-temperature cooling liquid through the liquid inlet, so that each heat conducting surface 201 contacted with the liquid cooling cavity is cooled, the low-temperature cooling liquid absorbs heat generated by the light source on the lamp panel 11 through the heat conducting surface 201 to be changed into high-temperature cooling liquid, and the high-temperature cooling liquid is discharged from the liquid outlet.

In the present embodiment, referring to fig. 3 and 4, for convenience of description, the heat conducting surface 201 of the liquid cooling box 21 includes a first heat conducting surface 203, a second heat conducting surface 204, a third heat conducting surface 205, a fourth heat conducting surface 206, and a fifth heat conducting surface 207 at the top. The liquid inlet 212 and the liquid outlet 213 are formed at the bottom of the liquid cooling box 21.

The liquid cooling chamber 211 of the liquid cooling box 21 can be divided into a low-temperature cooling chamber and a high-temperature reflow chamber. The low temperature cooling chamber is in communication with the liquid inlet 212 and the high temperature return chamber is in communication with the liquid outlet 213. The low-temperature cooling cavity comprises a first cooling cavity 214 and a second cooling cavity 215 which are distributed around the liquid cooling cavity 211 along a ring shape, and the first cooling cavity 214 and the second cooling cavity 215 are communicated through a cooling channel 216. The first cooling cavity 214 is circumferentially distributed along the first heat conducting surface 203, the second heat conducting surface 204, the third heat conducting surface 205, and the fourth heat conducting surface 206. The second cooling chamber 215 is located at the top of the liquid cooling box 21 and corresponds to the fifth heat conducting surface 207. The cooling channel 216 is located at the center of the liquid cooling box 21 and extends from bottom to top, so as to realize communication between the first cooling cavity 214 and the second cooling cavity 215. Fins 217 are disposed in the first cooling chamber 214 and the second cooling chamber 215.

When the low-temperature cooling liquid enters from the liquid inlet 212 at the bottom, the low-temperature cooling liquid is split into the first cooling cavity 214 and the second cooling cavity 215 through the cooling channel 216. The cooling liquid in the first cooling cavity 214 flows from bottom to top along the fins 217, so that heat generated by the first heat conducting surface 203, the second heat conducting surface 204, the third heat conducting surface 205 and the fourth heat conducting surface 206 is correspondingly taken away, and flows out from the top of the first cooling cavity 214 to become a first high-temperature reflux liquid. The cooling liquid in the second cooling cavity 215 flows up to the fins, and the cooling liquid is split to two sides, so that the heat generated by the fifth heat conducting surface 207 is correspondingly taken away, and flows out from the periphery of the second cooling cavity 215 to become second high-temperature reflux liquid.

A high temperature return chamber 218 is located between the first cooling chamber 214 and the second cooling chamber 215, and the high temperature return chamber 218 extends in a vertical direction. The high temperature return chamber 218 communicates with the first cooling chamber 214 and the second cooling chamber 215. The liquid cooling cassette 21 is provided with a baffle 219 between the top of the first cooling chamber 214 and the peripheral side of the second cooling chamber 215. The baffle 219 can prevent turbulence between the first high-temperature reflow liquid and the second high-temperature reflow liquid, which affects the smooth reflow of the first high-temperature reflow liquid and the second high-temperature reflow liquid into the high-temperature reflow cavity 218, and finally the first high-temperature reflow liquid and the second high-temperature reflow liquid flow out through the liquid outlet 213. The arrangement of the low-temperature cooling cavity and the high-temperature backflow cavity 218 can facilitate unidirectional flow of the cooling liquid in the liquid cooling cavity, and facilitate circulation of the cooling liquid.

It is understood that the shape of the liquid cooling cassette 21 may be a spherical body, a polyhedron, an irregular shape, or the like.

Referring to fig. 5 and 6, in other embodiments, the liquid cooling box 21 may further include a plurality of sub-liquid cooling boxes 22. The sub-liquid cooling box 22 is provided with a sub-liquid cooling chamber. The plurality of sub-liquid cooling boxes 22 are mutually obliquely spliced, and can be mutually spliced into pyramid shapes, sphere shapes, polyhedron shapes and the like.

The sub-liquid cooling cassette 22 may be flat. The sub-liquid cooling box 2222 includes a first mounting plate 221 and a second mounting plate 222 that are disposed opposite to each other. The outer side of the first mounting plate 221 is a thermally conductive surface 201. The lamp panel 11 may be mounted to an outer side surface of the first mounting plate 221. The lamp panel 11 is detachably disposed on the heat conducting surface 201. When one of the lamp panels 11 fails, only the lamp panel 11 needs to be disassembled and replaced, and other lamp panels 11 can continue to work normally, so that the maintenance is convenient, and the maintenance cost is saved. Specifically, the lamp panel 11 may be detachably disposed on the heat conducting surface 201 of the liquid cooling device 20 by the fastening screw 9.

The first mounting plate 221 may further be provided with a temperature sensor 202, and the temperature sensor 202 is configured to sense a temperature of the first mounting plate 221.

The first mounting plate 221 and/or the second mounting plate 222 may be provided with a water containing groove along the thickness direction, and the first mounting plate 221 and the second mounting plate 222 are mutually covered Rong Shuicao to form a sub-liquid cooling cavity. The sub-liquid cooling cavity is used for passing cooling liquid. The second mounting plate 222 is provided with a first communication pipe 223 and a second communication pipe 224 which are communicated with the sub-liquid cooling chamber. The first communication pipe 223 may be used for introducing the cooling liquid, and the second communication pipe 224 may be used for discharging the cooling liquid. It will be appreciated that the first communication pipe 223 may also be used for leading out the cooling liquid and the second communication pipe 224 may also be used for introducing the cooling liquid.

The plurality of sub-liquid cooling boxes 22 include a plurality of sub-liquid cooling chambers, and the plurality of sub-liquid cooling chambers may be mutually communicated with the second communication pipe 224 through the first communication pipe 223. And the plurality of sub-liquid cooling cavities can be connected in series or in parallel.

The liquid cooling device 20 further comprises a converging box 23, the liquid inlet 212 and the liquid outlet 213 are arranged on the converging box 23, a converging cavity is arranged in the converging box 23, and the converging cavity is communicated with the liquid cooling cavity. Specifically, a plurality of sub liquid cooling cavities are all interconnected with the converging cavity, and then the plurality of sub liquid cooling cavities are communicated in parallel through the converging cavity.

Specifically, the 5 sub-liquid cooling boxes 22 and the 1 confluence box 23 are spliced with each other to form a hexahedral-shaped liquid cooling device 20. The 5 sub-liquid cooling boxes 22 are respectively arranged on 5 sides of the hexahedron, and the converging box 23 is arranged on the bottom surface of the hexahedron. The first mounting surfaces of the 5 sub-liquid cooling boxes 22 are used for mounting the lamp panel 11, and the three-dimensional light source 10 is also formed. The two adjacent sub-liquid cooling boxes 22 are perpendicular to each other, and the included angle between the two adjacent heat conducting surfaces 201 is a right angle. When the liquid cooling boxes 21 are in other shapes, such as a frustum or a polyhedron, the included angle between two adjacent liquid cooling boxes 22 can be an acute angle or an obtuse angle.

The confluence box 23 is located at the bottom of the hexahedral liquid cooling device 20. The upper surface of the junction box 23 is protruded with a first joint 231 for interfacing with the first communication pipe 223 and a second joint 232 for interfacing with the second communication pipe 224. The number of first joints 231 and the number of second joints 232 are plural, and correspond to the first communication pipe 223 and the second communication pipe 224 of the 5 sub-liquid cooling boxes 22, respectively.

The first communication pipe 223 and the second communication pipe 224 of the sub-liquid cooling cassette 22 located on different sides extend toward the upper surface of the confluence cassette 23. It is ensured that the first communication pipe 223 and the second communication pipe 224 of each sub-liquid cooling cassette 22 can be butted with the first joint 231 and the second joint 232 of the confluence cassette 23.

The first and second joints 231 and 232 are aligned with the abutting positions of the first and second communication pipes 223 and 224 of the respective sub-liquid-cooling cassettes 22, respectively, so that the 5 sub-liquid-cooling cassettes 22 can be abutted to form a square shape.

The first communication pipe 223 and the second communication pipe 224 are hard pipes. The sub-liquid cooling cassette 22 is supported and positioned on the confluence cassette 23 via the first communication pipe 223 and the second communication pipe 224.

The first communication pipe 223 is detachably connected to the first joint 231. The second communication pipe 224 is detachably connected to the second joint 232. When one of the sub-liquid cooling boxes 22 is damaged, only the sub-liquid cooling box 22 needs to be removed and a new sub-liquid cooling box 22 needs to be replaced, so that convenient maintenance is realized.

Referring to fig. 7 and 8, in other embodiments, the stereoscopic light source type video lamp 1 further includes a base 40 and a mounting frame 50. The mounting bracket 50 is provided on the base 40. The base 40 may be a main body portion of the stereoscopic light source type film lamp 1 for providing a supporting effect. The base 40 may be a hollow box. The mounting bracket 50 may also be a cube structure that is open at one end. The open end of the mounting bracket 50 is mounted to the base 40 and communicates with the interior of the base 40. The mounting 50 and/or the base 40 may be a metal frame.

The base 40 is provided with a bayonet structure 41 for mounting an optical fitting. The mounting frame 50 is arranged at the center of the bayonet structure 41, and then the optical fitting is sleeved outside the mounting frame 50. The mount 50 is located on the optical axis of the optical fitting.

The mounting frame 50 is provided with a plurality of mounting surfaces 51 disposed obliquely to each other. The sub-liquid cooling boxes 22 are mounted on the respective mounting surfaces 51 of the mounting frame 50. The mounting frame 50 can better support the plurality of sub-liquid cooling boxes 22, so that the sub-liquid cooling boxes 22 can be stably spliced together and keep a three-dimensional shape, and the three-dimensional light source 10 is shaped by relying on the mounting frame 50.

Referring to fig. 9 and 10, the stereoscopic light source 10 of the stereoscopic light source type video lamp 1 further includes a lamp housing 13. The lamp housing 13 is sleeved outside the stereoscopic light source 10, and protects the stereoscopic light source 10. The shape of the lamp housing 13 is matched with the shape of the stereoscopic light source 10 and the mounting rack 50. The lamp envelope 13 is also polyhedral in shape. The side of the lamp housing 13 corresponding to the lamp panel 11 is provided with a light hole for transmitting the light emitted by the light source on the lamp panel 11.

Specifically, the mounting bracket 50 has a cubic shape. The mounting bracket 50 may have 5 mounting surfaces 51 and 1 open end. The 5 sub-liquid cooling cartridges 22 are mounted on the 5 mounting surfaces 51 correspondingly. The second mounting plate 222 of the sub-liquid cooling cassette 22 is provided with a first communication pipe 223, a second communication pipe 224, and a circuit line 225. The circuit line 225 is used for transmitting the cable 114 of the lamp panel 11. The mounting surface 51 is provided with a first via 511, a second via 512, and a third via 513, the first via 511 being for passing through the first communication pipe 223, the second via 512 being for passing through the second communication pipe 224, the third via 513 being for passing through the circuit line 225. The first communication pipe 223, the second communication pipe 224, and the circuit line 225 of the plurality of sub-liquid-cooling cartridges 22 are all gathered inside the mounting frame 50, and enter the inside of the base 40 from the open end.

It is understood that the first communication pipes 223 may be converged into one pipe, and the second communication pipes 224 may be converged into one pipe, so as to be communicated with the liquid inlet pipe 63 and the liquid outlet pipe 64.

The stereoscopic light source type video lamp 1 may further include an external liquid cooling tank 60 and a power supply control device 70. The liquid cooling tank 60 is independent of the liquid cooling apparatus 20. The liquid cooling tank 60 and the liquid cooling device 20 communicate with each other. The liquid cooling tank 60 supplies the liquid cooling apparatus 20 with the low-temperature cooling liquid. The cooling liquid can be low-temperature water, low-temperature fluoridation liquid, low-temperature silicon oil and the like. The liquid cooling box 60 is independent of the liquid cooling device 20, does not occupy the space of the liquid cooling device 20, does not increase the weight of the liquid cooling device 20, and can facilitate the arrangement of the three-dimensional light source 10. The distance between the liquid cooling tank 60 and the liquid cooling device 20 can be adjusted according to the use requirement, and the device can be applied to various occasions.

The liquid cooling tank 60 is provided with a pressure pump and a cooler. The external liquid cooling box 60 is also provided with a liquid inlet pipe 63 and a liquid outlet pipe 64. The liquid inlet pipe 63 is communicated with the liquid inlet 212, and the liquid outlet pipe 64 is communicated with the liquid outlet 213 to form a closed liquid cooling circulation loop. The pressure pump is communicated with the liquid cooling circulation loop and is used for pressurizing the cooling liquid, so that the cooling liquid can keep a high flow rate, and the cooling liquid can rapidly take away heat.

The chiller is used to provide a recirculating cooling fluid to the liquid cooling device 20. The coolers in the liquid cooling tank 60 may be a heat exchanger 61 and an electric fan 62. An electric fan 62 is provided on one side of the heat exchanger 61.

The heat exchanger 61 may be a plate heat exchanger, a tube heat exchanger, a shell and tube heat exchanger, or the like. The heat exchanger 61 can make the high-temperature cooling liquid flow on one side and cold air flow on the other side, so that heat in the cooling liquid is taken away by the flowing cold air through heat conduction and convection, and cooling of the cooling liquid is realized.

The fan 62 accelerates the flow of cold air over the heat exchanger surfaces, increasing the heat dissipation efficiency of the heat exchanger, helping the coolant to dissipate heat more quickly to the surrounding environment.

The liquid cooling box 60 may be powered by an internal battery or an external commercial power, and the power supply mode of the liquid cooling box 60 is not limited herein. The liquid cooling box 60 is connected with a power supply, so that the pressure pump and the fan can be electrified to work.

The power control device 70 is used for external power connection. The power supply control device 70 is electrically connected to the lamp panel 11 and the liquid cooling tank 60, and the power supply control device 70 is used for supplying power to the lamp panel 11 and the liquid cooling tank 60.

The power control device 70 may be directly electrically connected to the cable 114 of the lamp panel 11. The lamp panels 11 may be connected in series or in parallel. Or the power supply control device 70 is provided with an electric wire 31, and the power supply control device 70 is electrically connected with the stereoscopic light source type video lamp 1 through an electric wire 71. The power supply control device 70 is electrically connected to the lamp panel 11. The power control device 70 can control various operation states of the lamp panel 11.

The heat conducting surface 201 of the stereoscopic light source type film lamp 1 is provided with a temperature sensor 202. The temperature sensor 202 is electrically connected to the power supply control device 70. When the temperature information collected by the temperature sensor 202 reaches the preset temperature, the preset temperature is a safe temperature capable of ensuring the safe operation of the lamp panel 11. When the temperature of the heat conducting surface 201 reaches the preset temperature, it indicates that the liquid cooling device 20 has started to cool the heat conducting surface 201, and when the temperature is reduced to the safe temperature of the lamp panel 11, the power control device 70 can be controlled to turn on the stereoscopic light source 10, so as to ensure that the stereoscopic light source type video lamp 1 can work normally.

In the present embodiment, the power supply control device 70 may be electrically connected to the liquid cooling tank 60 of the liquid cooling device, and may be configured to supply power to the liquid cooling tank 60. The power supply control device 70 may also be electrically connected to the liquid cooling tank 60. After the power control device 70 controls the liquid cooling box 60 to start working, the lamp panel 11 is controlled to be electrified to work. Thereby controlling the operation of the liquid cooling tank 60. The power supply control device 70 is provided with an electric wire 72, and the power supply control device 70 is electrically connected to the liquid cooling tank 60 via the electric wire 32.

In particular, in the present embodiment, the power supply control device 70 may control the liquid cooling tank 60 to be turned on to start the operation of the pressure pump and the fan. After the liquid cooling box 60 is turned on, the power control device 70 controls the stereoscopic light source type video lamp 1 to be turned on again after a preset time interval. The normal operation of the stereoscopic light source type film and television lamp 1 is ensured.

Referring to fig. 7 to 10, a video lamp system is also provided. The video lamp system includes the stereoscopic light source type video lamp 1 and the optical fitting 2.

The optical fitting 2 is disposed in front of the stereoscopic light source 10, and the optical fitting 2 may be a soft umbrella, a soft cover, a soft box, a reflective cup, or the like. The stereoscopic light source 10 of the stereoscopic light source type video lamp 1 is located on the optical axis of the optical fitting 2. Further, if the light emitting area of the stereoscopic light source 10 in the direction perpendicular to the optical axis is small, the stereoscopic light source 10 can be most similar to a point light source. The optical fitting 2 can be conveniently focused, and the conversion efficiency of the optical fitting 2 to light rays can be improved. In addition, the size of the mounting caliber of the optical fitting 2 is greatly reduced, the diameter of the optical fitting 2 is reduced, and the assembly and the use of the optical fitting 2 are facilitated. The optical accessory 2 can be a small reflective cup sleeved outside the three-dimensional light source 10 and assembled into a whole through a lamp housing, and the optical accessory 2 can also be various detachable external optical accessories.

Referring to fig. 11, a schematic structural diagram of a cooling device for a stereoscopic light source type video lamp according to another embodiment of the application is shown. The cooling device 30 and the liquid cooling device 20 are similar in overall appearance structure and arrangement of heat conducting surfaces, so that the cooling device 30 comprises a plurality of heat conducting surfaces similar to the liquid cooling device 20 and can be used for installing a plurality of lamp panels with different lighting directions respectively. For example, the light panel mounted on the first heat-conducting surface 303 emits light to the left in the drawing, the light panel mounted on the third heat-conducting surface 305 emits light to the right in the drawing, and the light panel mounted on the fifth heat-conducting surface 307 emits light to the upper in the drawing, thereby forming a three-dimensional light source. The cooling device 30 may include a cooling frame 300 made of a metal material or other materials with good heat-conducting properties, the outer side surface of the cooling frame 300 forms the aforementioned heat-conducting surfaces with multiple orientations, the inner side surface of the cooling frame 300 is provided with the semiconductor refrigeration plate 320 corresponding to each heat-conducting surface, the cold surface of the semiconductor refrigeration plate 320 faces or is closely attached to the heat-conducting surface and the lamp panel, and the hot surface of the semiconductor refrigeration plate 320 is away from the heat-conducting surface. The cooling effect generated by the cold surface of the semiconductor cooling plate 320 can cool the lamp panel rapidly, and the hot surface can dissipate heat by a fan or liquid cooling. As an example, the cooling device 30 may further include a liquid cooling box 31 disposed inside the cooling rack 300, the liquid cooling box 31 being filled with liquid, and outer surfaces thereof being respectively connected to the hot surfaces of the semiconductor refrigeration panels 320 for rapid liquid cooling heat dissipation of the hot surfaces of the semiconductor refrigeration panels 320. The liquid cooling box 31 is connected to the liquid inlet 312 and the liquid outlet 313 to introduce the cooling liquid into the liquid cooling box 31 for circulation and then discharge the cooling liquid from the liquid cooling box 31.

Although the scheme of the application is mainly described by taking an external or partial external cooling system as an example, it should be understood that the film and television lamp utilizing the stereoscopic light source of the application can also integrate the external liquid cooling box, the stereoscopic light source and the liquid cooling device through one shell.

The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments of the present utility model, and those skilled in the art can easily make corresponding variations or modifications according to the main concept and spirit of the present utility model, so the protection scope of the present utility model shall be defined by the claims.

Claims (15)

1. A stereoscopic light source type film and television lamp, comprising:

A plurality of lamp panels, wherein the lamp panels comprise a light source and a circuit board, the light source is arranged on the circuit board, and

The cooling device comprises a plurality of heat conducting surfaces, wherein an included angle is formed between the plurality of heat conducting surfaces, at least two heat conducting surfaces are provided with lamp panels, and at least two lamp panels are different in luminous directions.

2. The stereoscopic light source type film and television lamp according to claim 1, wherein the cooling device is a liquid cooling device, the liquid cooling device comprises a liquid cooling box, at least one liquid cooling cavity for circulating cooling liquid is arranged in the liquid cooling box, the liquid cooling box is further provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling cavity, and the cooling liquid enters the liquid cooling cavity through the liquid inlet and is discharged from the liquid outlet.

3. The stereoscopic light source type film and television lamp according to claim 2, wherein the lamp panel is detachably disposed on the heat conducting surface.

4. The stereoscopic light source type film and television lamp according to claim 2, wherein the liquid cooling box is in a polyhedron shape, and the liquid inlet and the liquid outlet are positioned on the same side surface of the liquid cooling box.

5. The stereoscopic light source type film and television lamp according to claim 4, wherein the liquid cooling box comprises a plurality of sub liquid cooling boxes, each sub liquid cooling box is provided with a sub liquid cooling cavity, the sub liquid cooling boxes are mutually and obliquely spliced, each sub liquid cooling box comprises a first mounting plate and a second mounting plate which are oppositely arranged, the outer side surface of the first mounting plate is the heat conducting surface, and the second mounting plate is provided with a first communicating pipe and a second communicating pipe which are communicated with the sub liquid cooling cavity.

6. The stereoscopic light source type film and television lamp according to claim 5, wherein the liquid cooling device further comprises a confluence box, the liquid inlet and the liquid outlet are arranged on the confluence box, a confluence cavity is arranged in the confluence box, and the confluence cavity is communicated with the liquid cooling cavity.

7. The stereoscopic light source type film and television lamp of claim 5, further comprising a mounting bracket, wherein the mounting bracket is provided with a plurality of mounting surfaces which are arranged obliquely with respect to each other, and the second mounting plate of the sub-liquid cooling box is mounted on the mounting surfaces.

8. The stereoscopic light source type film and television lamp according to claim 7, wherein the second mounting board of the sub-liquid cooling box is further provided with a circuit pipeline for a cable passing through the lamp panel, the mounting surface is provided with a first via hole, a second via hole and a third via hole, the first via hole is used for passing through the first communication pipe, the second via hole is used for passing through the second communication pipe, and the third via hole is used for passing through the circuit pipeline.

9. The stereoscopic light source type film and television lamp of claim 7, further comprising a base, wherein the mounting bracket is provided on the base, and wherein the base is provided with a bayonet structure for detachably connecting the optical accessory.

10. The stereoscopic light source type film and television lamp of claim 2, wherein the liquid cooling box is of an integral structure.

11. The stereoscopic light source type film and television lamp according to any one of claims 2-10, further comprising a liquid cooling tank, wherein a cooler and a pressure pump are arranged in the liquid cooling tank, the liquid cooling tank is further provided with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is communicated with the liquid inlet, the liquid outlet pipe is communicated with the liquid outlet, the cooler is used for providing circulating cooling liquid for the liquid cooling device, and the pressure pump is communicated with the circulation.

12. The stereoscopic light source type film and television lamp according to claim 11, further comprising a power supply control device electrically connected to the lamp panel and the liquid cooling box, wherein the power supply control device is configured to supply power to the lamp panel and the liquid cooling box.

13. The stereoscopic light source type film and television lamp according to claim 12, wherein the power supply control device is electrically connected with the lamp panel and the liquid cooling box respectively, and the power supply control device controls the liquid cooling box to be turned on and then controls the lamp panel to be electrified.

14. The stereoscopic light source type film and television lamp of claim 1, wherein the cooling device comprises a plurality of semiconductor refrigeration panels, a cold face of the semiconductor refrigeration panels facing the lamp panel, and a hot face of the semiconductor refrigeration panels facing away from the lamp panel.

15. A video light system, comprising:

the stereoscopic light source type film and television lamp of any one of claims 1 to 14;

The optical fitting is arranged in front of the stereoscopic light source type film and television lamp, and the stereoscopic light source type film and television lamp is positioned on the optical axis of the optical fitting.