WO2017045504A1

WO2017045504A1 - Stage light having control system controlling cooling gas volume

Info

Publication number: WO2017045504A1
Application number: PCT/CN2016/095541
Authority: WO
Inventors: 蒋伟楷
Original assignee: 广州市浩洋电子有限公司; 蒋伟楷
Priority date: 2015-09-14
Filing date: 2016-08-16
Publication date: 2017-03-23
Also published as: CN105090837B; CN105090837A

Abstract

A stage light, having a control system controlling a cooling gas volume, comprises a light cavity (2) and a light source (1) disposed therein. A light cavity side wall (22) is arranged on one side of the light cavity (2), and a gas inlet is provided on the light cavity side wall (22). The stage light further comprises a gas pumping device (3) communicated with the gas inlet on the light cavity side wall (22). A baffle (5) and driving mechanisms (6, 7) configured to drive the baffle (5) are provided at the gas inlet on the light cavity side wall (22). The driving mechanisms (6, 7) are configured to drive the baffle (5) to move at the gas inlet and change a flow direction, a flow volume, and a flow speed of a cooling gas at the gas inlet. The embodiment is simple in structure and easy to use, and can increase safety and stability of lighting equipment, and prolong a service life of the light source (1) of the stage light.

Description

Stage light with cooling gas flow control system

Technical field

The present invention relates to the field of stage lighting technology, and more particularly to a stage light with a cooling gas flow control system.

Background technique

In the field of stage lighting, the temperature of the central light-emitting point is very high (about 8000 degrees) when the traditional light source such as high-voltage arc lamp is working, even if the surface temperature of the lower-temperature luminous ball has a temperature of nearly a thousand degrees. Under such high temperature conditions, relatively large heat will be generated. If the heat is not discharged in time, the internal flow field of the lamp will be uneven, the internal stress of the light source will be too large, and the air near the illuminating ball will be vigorously expanded, resulting in pressure. Abrupt changes, and the change of stress and pressure due to gravity is anisotropic, which leads to extremely uneven energy density distribution on the surface of the bulb's luminescent sphere, which makes the bulb's luminescent sphere (glass material) produce severe stress changes. Reversal damage, such as breakage, explosion, etc., resulting in frying and whitish light source (light transmittance is reduced) This results in a sharp drop in light efficiency; therefore, a corresponding thermal system is generally provided to cool and cool the light source.

However, according to the needs of the stage effect, the optical device's light-emitting angle is required to be randomly and randomly controlled at any angle within 360 degrees, and various dynamic and static light effects are given at any time in accordance with the stage change of the stage, giving the audience a stunning sensory effect. Therefore, the spatial orientation of the internal light source of the stage light (such as the moving head light) changes in real time. At present, the working state and control of the existing thermal system are basically fixed preset conditions, and the thermal system cannot be based on The position of the stage light is adjusted to adjust the gas flow field of the cooling light source in real time. This will cause the local light source to have local transitional cooling or insufficient cooling, which can not effectively meet the heat dissipation requirements, affecting the safety, reliability and service life of the light source. The thermal design of stage lighting presents a huge problem.

Summary of the invention

The present invention provides a stage light with a cooling gas flow control system in order to overcome at least one of the above-discussed deficiencies of the prior art. The invention has the advantages of simple structure and convenient use, can improve the safety and stability of the lamp, and prolong the service life of the stage lamp light source.

In order to solve the above technical problem, the technical solution adopted by the present invention is: a stage lamp with a cooling gas flow control system, comprising a lamp cavity and a light source disposed in the lamp cavity, the side of the lamp cavity being provided with a side wall of the lamp cavity, An air inlet is formed on the side wall of the lamp cavity, wherein the stage lamp is further provided with a blowing device that is electrically connected to the air inlet on the side wall of the lamp cavity, and a baffle is arranged at the air inlet on the side wall of the lamp cavity And a drive mechanism that drives the shutter to move. The movement of the baffle at the air inlet on the side wall of the lamp cavity by the moving drive mechanism can change the flow direction, flow rate and flow speed of the cooling gas at the air inlet on the side wall of the lamp cavity.

Further, the air blowing device is a blower or a fan, and an air guiding device is disposed between the air inlet on the side wall of the lamp cavity and the air blowing device, and the air outlet of the air blowing device is closely matched with the air inlet of the air guiding device. The air outlet of the air guiding device is closely matched with the air inlet on the side wall of the lamp cavity. An upper support plate is disposed above the light source, and an air blower is disposed under the light source, and the light cavity is surrounded by the upper support plate, the side wall of the lamp cavity and the air blower. The air blowing device feeds the cooling air into the lamp cavity through the air guiding device from the air inlet on the side wall of the lamp cavity, and then the cooling air exchanges heat with the light source in the lamp cavity to take away part of the heat generated by the light source, and finally It is discharged through the air outlet below the light source, thereby achieving the purpose of cooling and dissipating the light source.

Further, a guide device is disposed on the side wall of the baffle and the lamp cavity, and the guide device has two forms. In a first form, the guide device comprises a pulley disposed on the baffle and a guide rail disposed on the side wall of the lamp cavity to cooperate with the pulley; in a second form, the guide device comprises a lamp a pulley on the side wall of the chamber and a guide rail disposed on the baffle to cooperate with the pulley. The moving drive mechanism includes a drive motor coupled to an output shaft of the drive motor, and a drive gear coupled to the drive gear. When the driving motor rotates, the output shaft of the driving motor drives the driving gear connected thereto to rotate together. Since the baffle and the side wall of the lamp cavity are provided with the sliding device and the tooth structure on the baffle is meshed with the driving gear, the driving is driven. The gear will drive the baffle to move linearly along the direction of the rail.

Further, the baffle is provided with a plurality of finger plates or grooves, and the number of finger plates or grooves is ≦10, and the size of the fingerboard is smaller than the area of the air inlet on the side wall of the lamp cavity, preferably a lamp. One-half of the area of the air inlet on the side wall of the cavity. The design is to prevent the fingerboard from completely blocking the air inlet on the side wall of the lamp cavity during the movement of the baffle, thereby causing the light source in the lamp cavity to be generated. Instantaneous high temperature, which affects the service life of the light source. The size and height of the fingerboard or the groove are different, depending on the cooling energy demand of different regions, and the height of the fingerboard does not exceed the height of the air inlet on the side wall of the lamp cavity, wherein part of the fingerboard The height is the same as the height of the air inlet on the side wall of the lamp cavity, and the height of the part fingerboard is lower than the height of the air inlet on the side wall of the lamp cavity. During the movement of the baffle, the fingerboard adaptively blocks the air inlet on the side wall of the lamp cavity, thereby changing the flow direction, flow rate and flow velocity of the airflow entering the lamp cavity.

Further, a baffle stop column is arranged on the side wall of the lamp cavity to limit the initial position and the end position of the baffle movement.

Compared with the prior art, the beneficial effects of the present invention:

By controlling the flow control mechanism, the air inlet is adaptively blocked according to the need to dynamically control the flow rate and direction of the cooling airflow from the blower or the fan to the light source unit according to the real-time temperature at the light source unit, and the temperature of the light source unit is performed. Real-time dynamic adjustment of cooling, so that the heat distribution inside the stage lamp is even, improve the safety and stability of the lamp, and extend the service life of the stage light source.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the entire structure of the present invention.

Figure 2 is an exploded view of Figure 1.

Figure 3 is a schematic illustration of the direction of movement of the baffle of the present invention.

detailed description

The drawings are for illustrative purposes only and are not to be construed as limiting the scope of the invention; some of the components of the drawings may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; It will be understood by those skilled in the art that certain known structures and their description may be omitted. The positional relationship described in the drawings is for illustrative purposes only and is not to be construed as limiting the invention.

Example 1

As shown in FIG. 1-2, a stage lamp with a cooling gas flow control system includes a lamp cavity 2 and a light source 1 disposed in the lamp cavity 2, and a lamp cavity side wall 22 is provided at a side of the lamp cavity 2, and the lamp An air inlet is formed in the side wall 22 of the cavity, wherein the stage light is further provided with an air blowing device that is electrically connected to the air inlet opening on the side wall 22 of the lamp cavity, and the air inlet of the side wall 22 of the lamp cavity is provided at the air inlet. The baffle 5 and a drive mechanism that drives the baffle to move. The movement direction and speed of the cooling gas at the air inlet on the side wall 22 of the lamp chamber can be changed by the movement driving mechanism driving the baffle 5 to move at the air inlet on the side wall 22 of the lamp chamber.

As shown in FIG. 2, the air blowing device is a blower 3, and an air guiding device 4 is disposed between the air inlet port and the air blowing device on the side wall 22 of the lamp cavity, and the air outlet and the air guiding device of the air blowing device 4 The air inlet is closely matched, and the air outlet of the air guiding device 4 closely matches the air inlet on the side wall 22 of the lamp cavity. An upper support plate 21 is disposed above the light source 1 , and an air blower 23 is disposed below the light source 1 . The lamp cavity 2 is surrounded by the upper support plate 21 , the lamp cavity sidewall 22 and the air blower 23 . The air blowing device feeds the cooling air into the lamp cavity 2 through the air guiding device 4 from the air inlet port on the sidewall 22 of the lamp cavity, and then the cooling air exchanges heat with the light source 1 in the lamp cavity 2 to generate the light source 1 Part of the heat is taken away, and finally discharged through the air blower 23 below the light source 1, thereby achieving the purpose of cooling and dissipating the light source 1.

As shown in FIG. 2-3, the baffle 5 and the side wall 22 of the lamp cavity are provided with a sliding device, and the sliding device includes a pulley 51 disposed on the baffle 5 and is disposed on the side wall 22 of the lamp cavity. A guide rail 221 that cooperates with the pulley 51. The moving drive mechanism includes a drive motor 6 that is coupled to an output shaft of the drive motor 6, and a drive gear 7 that is provided with a toothed structure 52 that meshes with the drive gear 7. When the driving motor 6 rotates, the output shaft of the driving motor 6 rotates together with the driving gear 7 connected thereto, because the baffle 5 and the side wall 22 of the lamp chamber 22 are provided with a sliding device and the tooth structure 52 on the baffle 5 is The drive gear 7 is meshed and coupled, so that the drive gear 7 will drive the baffle 5 to move linearly along the direction of the guide rail 221.

As shown in FIG. 2-3, further, the baffle 5 is provided with a plurality of fingerboards 53. The number of fingerboards 53 is ≦10, and the fingerboard refers to a protruding portion disposed on the baffle. The area of the plate 53 is smaller than the area of the air inlet on the side wall 22 of the lamp cavity, preferably one-half of the area of the air inlet on the side wall 22 of the lamp cavity. This design is to prevent the baffle 5 from moving. During the process, the fingerboard 53 completely blocks the air inlet on the sidewall 22 of the lamp cavity, causing the light source 1 in the lamp cavity 2 to generate an instantaneous high temperature, thereby affecting the service life of the light source 1. The fingerboard 53 is different in size and height, and is determined according to the cooling energy requirement of the different regions. The height of the fingerboard 53 does not exceed the height of the air inlet on the side wall 22 of the lamp cavity, wherein the partial fingerboard 53 The height coincides with the height of the air inlet on the side wall 22 of the lamp cavity, and the height of the partial finger plate 53 is lower than the height of the air inlet on the side wall 22 of the lamp cavity. During the movement of the baffle 5, the fingerboard 53 adaptively blocks the air inlet on the side wall 22 of the lamp chamber, thereby changing the flow direction, flow rate and flow velocity of the airflow entering the lamp chamber 2.

Further, the lamp cavity sidewall 22 is provided with a baffle stop post 222 to limit the initial position and the end position of the baffle movement.

In this solution, the initial position of the baffle 5 is located at a position where the finger plate 53 does not block the air inlet on the side wall 22 of the lamp cavity. When the real-time temperature at the unit of the light source 1 is monitored, it is found that the flow to the unit of the light source 1 is required. When the flow rate and direction of the cooling air flow are adjusted, the drive motor 6 is turned on, and the output shaft of the drive motor 6 is driven to rotate together with the drive gear 7 connected thereto. Since the tooth structure 52 on the baffle 5 meshes with the drive gear 7, the drive is driven. The gear 7 drives the baffle 5 to perform a straight line running in the direction of the arrow as shown in FIG. 3. The finger plate 53 on the baffle 5 adaptively blocks the air inlet on the side wall 22 of the lamp cavity, thereby dynamically controlling the blower from the blower. 3 The flow rate and direction of the cooling airflow to the unit of the light source 1. When it is not necessary to adjust the flow rate and direction of the cooling airflow, the drive motor 6 is reversed, and the shutter 5 is returned to the initial position.

Example 2

This embodiment is similar to Embodiment 1 except that a fan is used in place of the air blower 3 in Embodiment 1 in this embodiment. The working principle and operation method of this embodiment are the same as those of the first embodiment.

Example 3

The embodiment is similar to the embodiment 1 except that the baffle 5 and the side wall 22 of the lamp cavity are provided with a sliding device, and the guiding device comprises a sidewall disposed on the side wall 22 of the lamp cavity. A pulley 51 and a guide rail 221 provided on the shutter 5 to engage with the pulley 51. The working principle and operation method of this embodiment are the same as those of the first embodiment.

Example 4

This embodiment is similar to the first embodiment except that a plurality of grooves are provided in the baffle plate 5 in place of the finger plate 53 in the embodiment 1. The working principle and operation method of this embodiment are the same as those of the first embodiment.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

A stage light with a cooling gas flow control system, comprising a lamp chamber (2) and a light source (1) disposed in the lamp chamber (2), the side of the lamp chamber (2) being provided with a lamp chamber side wall (22) The air inlet side wall (22) has an air inlet opening, wherein the stage light is further provided with an air blowing device that is electrically connected to the air inlet opening on the side wall (22) of the lamp cavity, and the side wall of the lamp cavity (22) The upper air inlet is provided with a baffle (5) and a driving mechanism for moving the baffle (5).
The stage lamp according to claim 1, wherein the air blowing device is a blower (3) or a fan, and the upper support plate (21) is disposed above the light source (1), and the light source (1) is disposed below The air blower (23) is surrounded by the upper support plate (21), the lamp cavity side wall (22) and the air blower (23).
A stage light according to claim 1, characterized in that the baffle (5) and the side wall (22) of the lamp chamber are provided with guide means.
The stage lamp according to claim 3, wherein the guide device comprises a pulley (51) provided on the baffle (5) and a pulley (51) and a pulley (51). a matching guide rail (221), or the guide device comprises a pulley (51) disposed on the side wall (22) of the lamp cavity and a guide rail disposed on the baffle (5) to cooperate with the pulley (51) (221).
The stage light according to claim 1, characterized in that a wind guiding device (4) is arranged between the air inlet on the side wall (22) of the lamp chamber and the air blowing device.
A stage lamp according to claim 1, wherein said moving drive mechanism comprises a drive motor (6) and a drive gear (7), said drive gear (7) being coupled to an output shaft of the drive motor (6), The baffle (5) is provided with a toothed structure (52) that meshes with the drive gear (7).
A stage lamp according to any one of claims 1 to 6, characterized in that the baffle is provided with a fingerboard (53) or a groove.
A stage light according to claim 7, wherein the number of said fingerboards (53) or grooves is less than or equal to 10.
The stage lamp according to claim 8, wherein the fingerboard (53) or the groove has different sizes and heights, and the maximum height of the fingerboard (53) does not exceed the side wall of the lamp cavity ( 22) The height of the air inlet on the upper.
The stage light according to claim 7, wherein the fingerboard (53) has an area smaller than an area size of the air inlet on the side wall (22) of the lamp chamber.
The stage light according to claim 7, characterized in that the lamp chamber side wall (22) is provided with a baffle limiting post (222).