Internal-circulating heat dissipation system for stage light

Patent metadata

Field	Value
Publication number	US-11060713-B2
Application number	US-202016738503-A
Country	US
Kind code	B2
Filing date	Jan 9, 2020
Priority date	Oct 31, 2019
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

The present invention discloses an internal-circulating heat dissipation system for a stage light, the system comprising a support arm, a light holder and a circulating heat dissipation system, wherein the light holder is pivotally connected to the support arm through a pivot shaft, the pivot shaft is of a shaft pipe structure, an internal space of the light holder is in communication with an internal space of the support arm through the pivot shaft, the circulating heat dissipation system comprises a cooling medium, a heat dissipation component located inside the support arm, and a power component that promotes the cooling medium to flow in circulation between the light holder and the heat dissipation component through the shaft pipe structure, and the cooling medium is isolated from an external space of the stage light.

First claim

The invention claimed is:

1. An internal-circulating heat dissipation system for a stage light, the system comprising
a support arm in U-shaped form;
a light holder, which is pivotally connected to the support arm through a pivot shaft, the pivot shaft being in shaft pipe structure, an internal space of the light holder being in communication with an internal space of the support arm through the pivot shaft; and
a circulating heat dissipation system, comprising
a cooling medium that is gas being isolated from an external space of the stage light;
a heat dissipation component being located inside the support arm;
a power component being configured to promote the cooling medium to flow in circulation between the light holder and the support arm through the shaft pipe structure;
a light source and a heat insulation cavity provided to enclose the light source, the heat insulation cavity is in communication with a heat medium inlet of the heat dissipation component, and the power component further comprises at least one blowing mechanism that blows the cooling medium from a cooling medium outlet of the heat dissipation component into the heat insulation cavity;
a flow dividing cavity, wherein the flow dividing cavity has a first sealing chamber and a second sealing chamber, the power component comprises at least one air extraction mechanism, a cooling medium outlet of the heat dissipation component is in communication with the first sealing chamber, the first sealing chamber is further provided with an air extraction opening, the air extraction opening is provided with the air extraction mechanism, and the heat insulation cavity is in communication with a hot gas flow inlet of the heat dissipation component through the second sealing chamber; and

wherein during the circulation, the cooling medium absorbs heat in the light holder, and the heated cooling medium is then cooled in the support arm by the heat dissipation component.

2. The internal-circulating heat dissipation system for a stage light according to claim 1 , wherein the light holder is pivotally connected to the support arm through two opposite pivot shafts, both the pivot shafts are of a shaft pipe structure, and the cooling medium flows into one of the shaft pipe structures and flows out of the other shaft pipe structure.

3. The internal-circulating heat dissipation system for a stage light according to claim 1 , wherein the cooling medium flows into and out of the light holder through the same pivot shaft.

4. The internal-circulating heat dissipation system for a stage light according to claim 3 , wherein a connecting pipe is provided inside the pivot shaft, the connecting pipe comprises an inner pipe and an outer pipe, the cooling medium flows between the light holder and the support arm through the inner pipe and an interlayer between the inner pipe and the outer pipe, and a rotary seal is provided on the inner pipe and/or the outer pipe.

5. The internal-circulating heat dissipation system for a stage light according to claim 3 , wherein two heat dissipation components are oppositely provided in the support form, the light holder is pivotally connected to the support arm through two pivot shafts, the two pivot shafts are arranged oppositely, both the pivot shafts are of a shaft pipe structure, and the cooling medium is divided into two circulating flows, each of which flows in circulation between the light holder and one of the heat dissipation components through one of the pivot shafts.

6. The internal-circulating heat dissipation system for a stage light according to claim 1 , wherein the heat dissipation component comprises a heat dissipation fin, a flow guide pipe passing through the heat dissipation fin and used for guiding flow of the cooling medium, and a heat dissipation fan for heat dissipation of the heat dissipation fin; and the support arm is provided with a ventilation opening corresponding to the heat dissipation fan.

7. The internal-circulating heat dissipation system for a stage light according to claim 1 , wherein the light holder is provided, on both sides, with a side plate that is pivotally connected to the support arm; and a cold air channel, through which the cooling medium outlet is connected to the first sealing chamber, is at least partially formed by a cover plate being fastened to the side plate, and/or a hot air channel, through which the heat medium inlet is connected to the second sealing chamber, is at least partially formed by a cover plate being fastened to the side plate.

Assignees

• Guangzhou Haoyang Electronics Co Ltd

Inventors

• Jiang Weikai

Classifications

• F21V21/30 Primary

  Pivoted housings or frames · CPC title

• F21V29/71 Primary

  using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements · CPC title

• H05K7/20263

  Heat dissipaters releasing heat from coolant · CPC title

• F21W2131/406

  for theatres, stages or film studios · CPC title

• F21V29/67

  characterised by the arrangement of fans · CPC title