WO2015101245A1

WO2015101245A1 - Imaging lamp

Info

Publication number: WO2015101245A1
Application number: PCT/CN2014/095247
Authority: WO
Inventors: 喻强; 林伟; 张权
Original assignee: 深圳市光峰光电技术有限公司
Priority date: 2013-12-30
Filing date: 2014-12-29
Publication date: 2015-07-09
Also published as: CN203642005U

Abstract

An imaging lamp (20), comprising a housing (15), and a light source module (11) and a camera lens (12) which are located inside the housing (15), wherein light rays emitted by the light source module (11) are emitted out via the camera lens (12). The imaging lamp (20) also comprises a heat pipe (16) connected to the light source module (11) and extending towards the direction of the camera lens (12), fins (13) connected to the heat pipe (16), and a fan (14) located inside the housing (15). By improving the construction of a heat dissipation component, the heat dissipation area is increased, the temperature of the imaging lamp is reduced, the life of the imaging lamp is improved, and at the same time, the structure of the imaging lamp is made more compact.

Description

Imaging light

Technical field

The utility model relates to a stage lighting device, in particular to an imaging lamp.

Background technique

The imaging lamp is a lighting fixture for stage performances. Solid-state light source modules and lenses are typically included in imaging lamps. Light from the solid state light source module is emitted through the lens.

Patent document CN 202392617 U A light emitting device, a lens array device, and a projection system are disclosed. However, at present, the luminous efficiency of the solid-state light source module is still relatively low, and a large amount of energy consumed is converted into heat energy, thereby causing an increase in temperature and a decrease in life. This has certain requirements for the heat dissipation function of the light-emitting device.

Such as light emitting diodes (LEDs) The reason why such a light source module generates heat is because not all of the input electrical energy is converted into light energy, but a part is converted into heat energy. The efficacy of light-emitting diodes (LEDs) is currently only 100lm/W Its electro-optic conversion efficiency is only about 20~30%. This means that about 70% of the electricity is turned into heat. Therefore, when the light source module is in operation, the temperature rises sharply due to heat generation.

At present, the heat dissipation technology used is mostly to install the heat dissipating component on the back of the light source module, and the space cannot be reasonably utilized, which is bound to increase the volume of the imaging lamp, especially the length in a certain dimension. This is disadvantageous in terms of the installation process and cost.

In the prior art imaging lamp, when the solid state light source module is in operation, a considerable part of the electrical energy is converted into heat and heat, and the heat is transmitted to the heat radiating fin through the bottom plate and the heat pipe of the solid state light source module, and the conduction, convection and radiation through the fin Heat is transferred to the outside air for heat dissipation.

Due to the limited space inside the imaging lamp housing, the volume, shape, and structure of the heat dissipating components (heat pipes, fins, and fans) are bound to be limited, and the heat dissipation performance is affected, resulting in an excessively high temperature of the light source, resulting in a decrease in the life of the imaging lamp. In addition, in the prior art, the arrangement of the housing, the heat pipe, the fins and the fan position of the imaging lamp is relatively random, which usually blocks the flow of air, so that the heat cannot be taken away by the airflow in time, thereby further deteriorating the heat dissipation effect. At the same time, the heat dissipating component is mounted on the back of the light source module (the side away from the lens), which increases the overall length of the imaging lamp in the longitudinal direction, which is inconvenient in practical installation applications.

technical problem

There are a series of problems in the arrangement of the heat dissipating components of the imaging lamp in the prior art. Firstly, due to the limited space in the imaging lamp housing, the volume of the heat dissipating component is limited, and the heat dissipation performance is affected, causing the temperature of the light source to be too high and causing the life to be reduced; Secondly, the arrangement of the housing, heat pipe, fins and fan of the imaging lamp is relatively random, which blocks the flow of air, so that the heat cannot be taken away by the airflow in time, which further deteriorates the heat dissipation effect; again, the heat dissipation component is installed in the light source module The back side (away from the side of the lens) increases the overall length of the imaging light in the longitudinal direction.

In order to solve the above problems in the prior art, the present invention proposes an improved imaging lamp.

An imaging lamp includes a housing, a light source module disposed in the housing, and a lens, wherein light emitted by the light source module is emitted through the lens, and the imaging light further includes a light source module coupled to the light source module a heat pipe extending in a direction toward the lens, a fin connected to the heat pipe, and a fan located inside the casing.

The heat from the light source module is transmitted along the heat pipe, spreads along the fins at the fins, and is radiated into the air through the surface area of the fins, and is carried away by the airflow applied by the fan. It can be seen that the imaging lamp arrangement according to the present invention results in a significantly higher heat dissipation surface area than prior art imaging lamps.

Preferably, the heat pipe includes a bent portion and an extending portion, and one end of the bent portion is connected to the light source module, and the other end is connected to the extending portion, and the extending portion extends toward the lens. The arrangement of the bends makes the structure of the entire imaging lamp more compact and the volume is reduced; the arrangement of the extensions facilitates heat dissipation in conjunction with the fins (described in more detail below).

Preferably, the housing is a longitudinally extending cylindrical shape with one end closed at one end, and the light source module is located at a closed end of the housing, and the lens is located at an open end of the housing. The light source module is located at the closed end of the housing to protect the light source module from dust and water, and the lens is located at the open end of the housing to facilitate light emission therethrough.

Preferably, the imaging lamp comprises a plurality of heat pipes, and the heat pipes surround the light source module as viewed in a longitudinal direction of the casing. This arrangement allows for maximum space savings in space geometry and maximizes heat dissipation in a limited housing capacity to optimize heat dissipation.

Preferably, the fan is located on one side or opposite sides of the fin, or the fan is located at a closed end of the housing. Such a positional arrangement facilitates the flow of air caused by the fan through all of the heat pipes and fins, while the air flow passages are not blocked by the heat dissipating components, thereby quickly removing heat from the interior of the imaging lamp.

Preferably, the fin comprises at least two sheets arranged parallel to each other and spaced apart, and the extension of the heat pipe sequentially passes through the plurality of sheets. In this way, the heat pipe and the fin can quickly take away the heat; at the same time, the two are interspersed in the gap of the other side, which effectively saves the total space occupied.

Preferably, the fin is annular and is viewed along a longitudinal direction of the housing, and the light source module is located within the inner circle of the ring. As such, the fins do not interfere with the light path.

Preferably, the fan is located on an inner wall of the side wall of the casing, and a direction of airflow applied by the fan is consistent with an extending direction of the fin. In this way, the fins do not block the flow of the airflow, and the airflow sweeps over the surface of the fins, maximizing the contact area between the airflow and the fins, improving the heat dissipation effect.

Preferably, the number of the fans is multiple, and the plurality of fans are divided into two groups, which are respectively located at two opposite positions on the inner wall of the side wall of the casing, and one set of fans blows, and the other Group fans suck. This cooperation is beneficial to the airflow caused by the fan to quickly take away the heat and improve the heat dissipation effect.

Preferably, the housing has a plurality of through holes or a plurality of dustproof mesh holes on the side walls for guiding the airflow. In this way, the flow of the airflow is not obstructed by the fins and the casing, and the heat generated by the fins can be taken away immediately, and the efficiency is better; at the same time, the airflow of the fan removes the dust through the through holes, keeping the interior of the imaging lamp clean. To prevent the light source from being contaminated by dust.

Preferably, the light source module comprises a solid state light source, and the solid state light source is an array of light emitting diodes or a laser diode array. The use of the LED array as the light source module can make the cost low, and the laser diode array can improve the brightness of the imaging lamp. The array of the LED and the laser diode can make the brightness of the imaging lamp based on the cost advantage. Better.

According to the configuration and arrangement of the heat dissipating components (heat pipes, fins, and fans), the imaging lamp according to the present invention increases the heat dissipating area in a limited space, improves the heat dissipating effect, and avoids the entire imaging lamp (ie, the imaging lamp) The size of the shell) increases in a certain dimension. At the same time, it also has the effect of protecting the interior.

Therefore, according to the image forming lamp of the present invention, by improving the configuration of the heat dissipating member, the heat dissipating area is increased, the temperature of the image forming lamp is lowered, the life of the image forming lamp is improved, and the structure of the image forming lamp is made more compact.

The above technical features may be combined in various suitable ways or by equivalent technical features as long as the object of the present invention can be achieved.

DRAWINGS

The invention will be described in more detail below on the basis of only non-limiting embodiments and with reference to the accompanying drawings. among them:

Figure 1 shows a front view of an imaging lamp in accordance with the present invention;

Figure 2 shows a bottom view of an imaging lamp in accordance with the present invention.

In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to scale.

Embodiments of the invention

The present invention will be described in detail below with reference to the accompanying drawings.

The utility model provides an imaging lamp.

Figure 1 shows a front view of an imaging lamp in accordance with the present invention. Figure 2 shows a bottom view of an imaging lamp in accordance with the present invention. Reference map 1 and Figure 2.

The imaging light 20 includes a housing 15 . Preferably, the housing 15 is a longitudinally extending cylindrical shape with one end closed at one end, of course the housing The shape of 15 is not limited to this. Here, the 'longitudinal direction' is the X direction (i.e., the up and down direction) in Fig. 1, that is, the extending direction of the internal passage of the cylindrical casing 15.

Further, the imaging lamp 20 further includes a light source module 11 located in the housing 15 For emitting light. Due to the current state of the art, a considerable portion of the energy input into the light source module 11 is converted into heat energy, so that the light source module 11 is the main heat generating mechanism in the imaging lamp 20. The light source module 11 It can be an array of light emitting diodes, a laser diode array or a combination of light emitting diodes and laser diode arrays. The use of the LED array as the light source module can make the cost low, and the laser diode array can improve the brightness of the imaging lamp. The array formed by the LED and the laser diode can make the imaging lamp based on the cost advantage. The brightness is better.

The imaging lamp 20 further includes a lens 12 on one side of the light source module 11 , and the light emitted by the light source module 11 passes through the lens 12 shot. Preferably, the light source module 11 is located at the closed end of the housing 15, and the lens 12 is located at the open end side of the housing 15.

In the above embodiment, the housing 15 is closed at one end, and the light source module 11 can be protected from dust, water, and the like; One end is open, and the lens 12 is located at the open end of the housing 15, so that the light passing through the lens can be emitted unobstructed, thereby ensuring the light output intensity.

The imaging lamp 20 further includes a heat pipe 16 connected to the light source module 11, and fins 13 connected to the heat pipe 16. .

The heat generated by the light source module 11 is transmitted along the heat pipe 16 to the fins 13 due to the heat pipes 16 For a metal or an alloy, the heat transfer efficiency is much greater than that of air, so that the heat of the light source module is transmitted through the heat pipe 16, so that the heat can be quickly dispersed. In addition, the fins 13 The material may be a metal or an alloy, and has a wide surface, which further improves the efficiency of heat transfer, and the heat is rapidly diffused into the air by the fins 13, so that the light source module 11 The energy is quickly transmitted and emitted into the air.

Referring to Fig. 1, it can be seen that the heat pipe 16 includes a bent portion 16a and an extended portion 16b, and the bent portion 16a One end is connected to the light source module 11, and the other end is connected to the extending portion 16b, and the extending portion 16b is straight. The bent portion 16a is bent toward the lens 12, and the extending portion 16b faces the lens 12 The direction extends. The technical solution can make the heat dissipating component structure of the imaging lamp more compact.

Preferably, the extension 16b of the heat pipe 16 is parallel to the longitudinal axis of the housing 15.

Preferably, imaging light 20 includes a plurality of heat pipes 16 . And observing a plurality of heat pipes 16 along the longitudinal direction of the casing, the light source module 11 Surrounded to increase heat dissipation. Here, the 'longitudinal direction' is the X direction in Fig. 1, that is, the extending direction of the internal passage of the cylindrical casing 15. 'Observation along the longitudinal direction of the casing' means that Figure 2 The bottom view angle shown or the opposite top view angle.

Further, the imaging lamp 20 in the above embodiment further includes a fan 14 located inside the casing 15. The fan 14 It is used to increase the air flow inside the imaging lamp 20, thereby improving the heat dissipation efficiency inside the imaging lamp 20.

The position of the fan 14 is not particularly limited. The fan 14 can be located at the closed end of the housing 15. Preferably, the fan 14 Located on the side wall of the housing 15, this makes the structure of the imaging lamp 20 more compact (reducing the overall length of the imaging lamp, making full use of the internal space of the housing), i.e., improving the imaging lamp 20 Space utilization. Further preferably, the number of fans 14 is two or more, and the plurality of fans 14 are divided into two groups, respectively located in the housing 15 Two opposite positions on the inner wall of the side wall, one set of fans blowing, the other set of fans sucking air; or two sets of fans are used for blowing, when one set of fans works, the other set of fans stops, two groups The fan alternately blows. The technical solution can effectively remove dust.

Further, the side wall of the housing 15 is provided with a through hole or a dustproof mesh hole 17 for forming a vent, thereby accelerating the housing 15 The air exchange inside and outside further improves the heat dissipation efficiency; at the same time, the airflow can also remove the dust inside the imaging lamp through the through hole 17, effectively keeping the inside of the imaging lamp clean.

In any of the above technical solutions, the fins 13 are perpendicular to the fan 14 on the side wall of the housing, so that the fan 14 can be made. The wind during operation can sweep across the wide surface through the gap of the fins 13, and quickly take away the heat on the fins 13 to achieve rapid cooling. Preferably, the fins 13 A plurality of sheets parallel to each other are included, and the sheets are spaced apart from each other, and the sheets of the plurality of fins 13 sequentially pass through the extending portion 16b of the heat pipe 16. Among them, the fin 13 The number and spacing of the sheets can be set according to the power and heat generation capability of the corresponding light source module 11. In the technical solution, not only the imaging lamp 20 is made The structure is more compact, can maximize space saving in space geometry, and maximizes the heat dissipation area in a case where the internal space of the casing 15 is constant to optimize the heat dissipation effect.

Referring to FIG. 2, further, in order to optimize the heat dissipation effect and further save space, the fins 13 are arranged in a ring shape and along the casing. Viewed in the longitudinal direction of 15 , the light source module 11 is located within the inner circle of the ring. Here, the 'longitudinal direction' is the X direction in Fig. 1, that is, the cylindrical casing 15 The direction of the internal passage extends. 'Observation in the longitudinal direction of the casing' means the bottom view or the opposite view as shown in Fig. 2.

The imaging lamp of the utility model increases the heat dissipation area in a limited space by the structure of the heat dissipation component (heat pipe, fin and fan), improves the heat dissipation effect, and avoids the entire imaging lamp (ie, the casing of the imaging lamp). Increased size in a dimension; at the same time, dust-proof through hole 17 The setting can be combined with the airflow of the fan to keep the inside of the imaging lamp clean and avoid dust pollution. Therefore, according to the image forming lamp of the present invention, by improving the configuration of the heat dissipating member, the heat dissipating area is increased, the temperature of the image forming lamp is lowered, the life of the image forming lamp is improved, and the structure of the image forming lamp is made more compact.

Although the present invention has been described with reference to the preferred embodiments thereof, various modifications may be made thereto and the components may be replaced with equivalents without departing from the scope of the invention. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

An imaging lamp includes a housing, a light source module disposed in the housing, and a lens, wherein light emitted by the light source module is emitted through the lens, and the imaging light further includes the light source A heat pipe extending in a direction of the lens, a fin connected to the heat pipe, and a fan located inside the casing.
According to claim 1 The image forming lamp is characterized in that the heat pipe comprises a bent portion and an extending portion, and one end of the bent portion is connected to the light source module, and the other end is connected to the extending portion, and the extending portion faces the The direction of the lens extends.
According to claim 2 The imaging lamp is characterized in that the fin comprises at least two sheets arranged parallel to each other and spaced apart, and an extension of the heat pipe sequentially passes through the plurality of sheets.
According to claim 1 The imaging lamp is characterized in that the housing is a longitudinally extending cylindrical shape with one end closed at one end, and the light source module is located at the closed end of the housing, and the lens is located in the housing The open end.
According to claim 4 The imaging lamp is characterized in that the imaging lamp comprises a plurality of heat pipes, and the heat pipes surround the light source module as viewed in a longitudinal direction of the casing.
According to claim 4 The imaging lamp is characterized in that the fin is annular and is observed in a longitudinal direction of the housing, and the light source module is located inside the annular inner circle.
The imaging lamp of claim 4 wherein said fan is located on one or opposite sides of said fin or said fan is located at a closed end of said housing.
According to claim 6 The imaging lamp is characterized in that the number of the fans is plural, and the plurality of the fans are divided into two groups, which are respectively located at two opposite positions on the inner wall of the side wall of the casing, and One set of fans blows and the other set of fans sucks.
According to claims 1 to 8 The imaging lamp according to any one of the preceding claims, wherein the fan is located on an inner wall of the side wall of the casing, and the direction of the airflow applied by the fan coincides with the extending direction of the fin.
The imaging lamp according to any one of claims 1 to 8, wherein the housing has a plurality of through holes or a plurality of dustproof mesh holes on the side walls for guiding the air flow.
According to claims 1 to 8 The imaging lamp of any of the preceding claims, wherein the light source module comprises a solid state light source, and the solid state light source is an array of light emitting diodes or a laser diode array.