Heat dissipation device based on air multiplication and stage lamp with same

Abstract

The heat dissipation device comprises an adapter tube and a multiplier tube, the end portions of the adapter tube and the multiplier tube are connected with each other, the end, away from the adapter tube, of the multiplier tube is sealed, and a long and narrow air outlet is formed in the side face of the multiplier tube. The width of the multiplier tube is gradually reduced from the side away from the long and narrow air outlet to the side provided with the long and narrow air outlet. Heat dissipation of a large-area heating point is achieved through the long and narrow air outlet, meanwhile, the width of the multiplier tube is gradually reduced from the side away from the long and narrow air outlet to the side provided with the long and narrow air outlet, and therefore air entering the multiplier tube from the air outlet nozzle of the draught fan can be compressed in the multiplier tube and then sprayed out of the long and narrow air outlet in a high-speed state. A vacuum low-pressure area is generated around the long and narrow air outlet due to the coanda effect, and under the action of pressure intensity, a large amount of peripheral airflow flows to the long and narrow air outlet and converges with airflow sprayed out of the long and narrow air outlet, so that heat dissipation airflow with larger capacity is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, and more specifically, to a heat dissipation device based on air multiplication and a stage lamp having the same. Background Art

[0002] In stage lighting, various effect components are usually inserted between the light source and the lens to achieve different performance effects. Different effect components can produce different light effects by intercepting light and allowing a specific part of the light to pass through or dyeing it to achieve different performance effects. However, most of the light energy carried by the intercepted part of the light is absorbed by the effect component, which leads to an increase in the temperature of the effect component. If the effect component is continuously heated without a suitable cooling method, its life and even performance will be irreversibly and seriously damaged.

[0003] The current heat dissipation devices all use the air nozzle of the fan to blow towards the heat point, but the air outlet of the fan is generally roughly square. Even if a guide plate is used, it is not easy to dissipate heat for a large area of ​​the heat point. In addition, directly using an ordinary guide plate can only guide the wind of the fan to the heat point without an amplification effect, and the heat dissipation efficiency is low. Utility Model Content

[0004] In order to overcome at least one defect of the prior art described above, the utility model provides a heat dissipation device based on air multiplication, which can dissipate heat from a large area of ​​heating points and improve the heat dissipation efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a heat dissipation device based on air multiplication, comprising a transfer tube and a multiplier tube whose ends are interconnected, the end of the transfer tube away from the multiplier tube is used to connect with the air outlet of the fan, the end of the multiplier tube away from the transfer tube is sealed, a narrow air outlet is provided on the side of the multiplier tube, and the width of the multiplier tube gradually decreases from the side away from the narrow air outlet to the side where the narrow air outlet is set.

[0006] The heat dissipation device based on air multiplication realizes heat dissipation for a large area of ​​heat points through a narrow air outlet. At the same time, the width of the multiplier tube gradually decreases from the side away from the narrow air outlet to the side where the narrow air outlet is set. Therefore, the air entering the multiplier tube from the air outlet of the fan will be compressed therein, and then ejected from the narrow air outlet at a high speed. Due to the Coanda effect, a vacuum low-pressure area is generated around the narrow air outlet. Under the action of pressure, a large amount of peripheral airflow will flow to the narrow air outlet and merge with the airflow ejected from the narrow air outlet itself to form a heat dissipation airflow with a larger capacity.

[0007] Furthermore, the width of the narrow air outlet is 0.2 cm-0.8 cm, which can ensure heat dissipation efficiency, and is neither too narrow to make it difficult for the narrow air outlet to discharge air, nor too wide to make a vacuum low-pressure area around the narrow air outlet not obvious.

[0008] Furthermore, the length of the narrow air outlet is greater than 2 cm and less than 5 cm, which is suitable for the area size of the light beam intercepted by the effect component of a general stage light.

[0009] Furthermore, the narrow air outlet is provided with a plurality of grilles along its length, and the plurality of grilles divide the narrow air outlet into a plurality of small air outlets. The small air outlets divide the airflow at the narrow air outlet into a plurality of streams, so that each stream flows in a predetermined direction, avoiding mutual interference and turbulence.

[0010] Furthermore, the length of the small air outlet along the length direction of the narrow air outlet is greater than 0.4 cm and less than 1 cm, which can ensure that the airflow at the narrow air outlet is clearly divided into multiple streams, and can also avoid excessive length, which may cause turbulence inside each stream.

[0011] Furthermore, the side of the multiplier tube away from the narrow air outlet is arc-shaped in its width direction, so that the airflow inside the multiplier tube circulates smoothly and avoids power loss.

[0012] Furthermore, a first arc-shaped flow guide section is formed at one end of the multiplier tube away from the adapter tube and on one side away from the narrow air outlet, which guides the airflow flowing toward the end toward the narrow air outlet, so that the airflow flowing toward the end of the multiplier tube away from the adapter tube is smoothly diverted to the narrow air outlet to avoid power loss.

[0013] Furthermore, at one end of the multiplier tube close to the adapter tube, a second arc-shaped flow guide section is formed on one side close to the narrow air outlet to allow the airflow from the adapter tube to flow smoothly to the multiplier tube. That is, the width of the connection between the two gradually changes without sudden changes, thereby avoiding power loss when the airflow from the adapter tube enters the multiplier tube.

[0014] Furthermore, the adapter tube gradually narrows from one end away from the multiplier tube to one end close to the multiplier tube, so as to smoothly guide the wind of the fan to the multiplier tube. The adapter tube preliminarily compresses the airflow flowing out of the air outlet of the fan, and guides the wind of the fan to smoothly guide to the multiplier tube to avoid power loss.

[0015] The utility model also provides a stage light, comprising any of the above-mentioned heat dissipation devices, the heat dissipation device is located in the lamp head of the stage light, the lamp head is also provided with a light source for emitting light and a flat effect component for selectively intercepting light to produce light effects, and the narrow air outlet faces the effect component. Under the action of pressure, a large amount of peripheral airflow flows to the narrow air outlet and merges with the airflow ejected from the narrow air outlet itself to form a larger capacity heat dissipation airflow, which blows toward the effect component, and the narrow air outlet can completely cover the large area of ​​the heating point on the flat effect component, so that the cooling effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model in which the heat dissipation device based on air multiplication is connected with a fan.

[0017] Figure 2 It is a schematic diagram of the overall structure of the heat dissipation device based on air multiplication of the utility model.

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the heat dissipation device based on air multiplication according to the utility model along the length direction.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the heat dissipation device based on air multiplication according to the utility model along a direction perpendicular to the length.

[0020] Figure 5 It is a schematic diagram of the exploded structure of the utility model stage lamp.

[0021] In the figure:

[0022] 100, adapter tube; 200, multiplier tube; 210, narrow air outlet; 220, grille; 230, first arc-shaped guide section; 240, second arc-shaped guide section; 300, fan; 310, air outlet nozzle; 400, lamp holder; 4100, light source; 420, rotating pattern plate; 430, fixed pattern plate; 500, arm; 600 chassis. DETAILED DESCRIPTION

[0023] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0024] like Figures 1 to 4The utility model provides a heat dissipation device based on air multiplication, including a transfer tube 100 and a multiplier tube 200 whose ends are connected to each other, the end of the transfer tube 100 away from the multiplier tube 200 is used to connect with the air outlet 310 of the fan 300, the end of the multiplier tube 200 away from the transfer tube 100 is sealed, and a narrow air outlet 210 is opened on the side of the multiplier tube 200, and the width of the multiplier tube 200 gradually decreases from the side away from the narrow air outlet 210 to the side where the narrow air outlet 210 is set.

[0025] The heat dissipation device based on air multiplication realizes heat dissipation for a large area of ​​heat points through the narrow air outlet 210. At the same time, the width of the multiplier tube 200 gradually decreases from the side away from the narrow air outlet 210 to the side where the narrow air outlet 210 is set. Therefore, the air entering the multiplier tube 200 from the air outlet 310 of the fan 300 will be compressed therein, and then ejected from the narrow air outlet 210 at a high speed. Due to the Coanda effect, a vacuum low-pressure area is generated around the narrow air outlet 210. Under the action of pressure, a large amount of peripheral airflow will flow to the narrow air outlet 210 and merge with the airflow ejected from the narrow air outlet 210 itself to form a heat dissipation airflow with a larger capacity.

[0026] In a preferred embodiment of the utility model, the width of the narrow air outlet 210 is 0.2 cm-0.8 cm, which can ensure heat dissipation efficiency, and is neither too narrow to make it difficult for the narrow air outlet 210 to discharge air, nor too wide to make a vacuum low-pressure area around the narrow air outlet 210 not obvious.

[0027] Optionally, the adapter tube 100 is detachably connected to the multiplier tube 200 , so as to facilitate the matching of the multiplier tube 200 with the blower 300 of different specifications, or the blower 300 is connected to the multiplier tube 200 of different specifications.

[0028] In this embodiment, according to the specifications of the fan 300 commonly used in stage lights, combined with the air volume and wind speed of the fan 300, it is preferred that the width of the narrow and long air outlet 210 is about 5 mm.

[0029] In the preferred embodiment of the utility model, the length of the narrow air outlet 210 is greater than 2 cm and less than 5 cm, which is suitable for the area of ​​the light beam intercepted by the effect component of a general stage lamp, and can directly blow the entire heating point of a large area to cool it down, with higher heat dissipation efficiency.

[0030] In this embodiment, according to the optical path characteristics of the stage light, the length of the narrow air outlet 210 is preferably about 4 cm.

[0031] In a preferred embodiment of the utility model, the narrow air outlet 210 is provided with a plurality of grilles 220 along its length direction, and the plurality of grilles 220 divide the narrow air outlet 210 into a plurality of small air outlets. The small air outlets divide the airflow at the narrow air outlet 210 into a plurality of streams, so that each stream flows in a predetermined direction, avoiding mutual interference and turbulence.

[0032] In this embodiment, two sides of the grille 220 are respectively connected to two side walls of the narrow and long air outlet 210 .

[0033] Optionally, the portion of the narrow and long air outlet 210 where the grille 220 is disposed is detachably connected to or welded to the multiplier tube 200 , which facilitates flexible and replaceable use of the grille 220 to adjust the direction of each airflow compared to an integrally formed one.

[0034] In a preferred embodiment of the utility model, the length of the small air outlet along the length direction of the narrow air outlet 210 is greater than 0.4 cm and less than 1 cm. This can ensure that the airflow at the narrow air outlet 210 is clearly divided into multiple streams with a sufficient length, and can also avoid turbulence in each stream caused by excessive length.

[0035] In this embodiment, the length of the grille 220 along the air outlet direction of the narrow and long air outlet 210 is 1-2 cm, so as to achieve turbulent flow arrangement for each airflow, and is not too long to affect the flow of air in the multiplier tube 200 .

[0036] like Figure 4 In a preferred embodiment of the utility model, the side of the multiplier tube 200 away from the narrow air outlet 210 is arc-shaped in its width direction, so that the airflow inside the multiplier tube 200 circulates smoothly and avoids power loss.

[0037] In this embodiment, the cross-sectional structural diagram of the multiplier tube 200 along a direction perpendicular to the length direction is in the shape of a water drop.

[0038] like Figures 1 to 3 In a preferred embodiment of the utility model, at one end of the multiplier tube 200 away from the transfer tube 100, a first arc-shaped guide section 230 is formed on the side away from the narrow air outlet 210 to guide the airflow flowing toward the end toward the narrow air outlet 210. The airflow flowing toward the end of the multiplier tube 200 away from the transfer tube 100 is smoothly turned to the narrow air outlet 210 to avoid power loss.

[0039] The curvature of the first arc-shaped guide section 230 is customized and designed according to the gas flow rate in the multiplier tube 200 and the speed at which the width of the multiplier tube 200 gradually decreases from the side away from the narrow and long air outlet 210 to the side where the narrow and long air outlet 210 is set.

[0040] In a preferred embodiment of the utility model, at one end of the multiplier tube 200 close to the adapter tube 100, a second arc-shaped flow guide section 240 is formed on the side close to the narrow and long air outlet 210 to make the airflow from the adapter tube 100 flow smoothly to the multiplier tube 200. That is, the width of the connection between the two gradually changes without sudden changes, so as to avoid power loss when the airflow from the adapter tube 100 enters the multiplier tube 200.

[0041] The curvature of the second arc-shaped flow guide section 240 is customized and designed according to the diameter of the end of the transfer tube 100 close to the multiplier tube 200 , the diameter change of the multiplier tube 200 , and the air flow velocity flowing out of the multiplier tube 200 .

[0042] In a preferred embodiment of the utility model, the adapter tube 100 gradually narrows from the end away from the multiplier tube 200 to the end close to the multiplier tube 200, and smoothly guides the wind of the fan 300 to the multiplier tube 200. The adapter tube 100 preliminarily compresses the airflow flowing out of the air outlet 310 of the fan 300, and guides the wind of the fan 300 to the multiplier tube 200 smoothly, avoiding power loss.

[0043] In this embodiment, the adapter tube 100 is funnel-shaped as a whole, and its sidewall is arc-shaped, and the end of the adapter tube 100 close to the multiplier tube 200 is flat.

[0044] like Figure 5 The utility model also provides a stage light, comprising any of the above-mentioned heat dissipation devices, the heat dissipation device is located in the lamp head 400 of the stage light, the lamp head 400 is also provided with a light source 4100 for emitting light and a flat effect component for selectively intercepting light to produce light effects, and the narrow air outlet 210 faces the effect component. Under the action of pressure, a large amount of peripheral airflow flows to the narrow air outlet 210 and merges with the airflow ejected from the narrow air outlet 210 itself, forming a larger capacity heat dissipation airflow, which blows toward the effect component, and the narrow air outlet 210 can completely cover the large area of ​​the heating point on the flat effect component, and the cooling effect is better.

[0045] The effect component may be a strobe film, a cutter, a rotating pattern plate 420, a fixed pattern plate 430, a fire plate, a color plate or CMY.

[0046] In this embodiment, the airflow of the narrow and long air outlet 210 is directed toward the portion of the light beam that intersects with the light beam when the effect component intercepts the light beam.

[0047] In this embodiment, an arm 500 for supporting the lamp head 400 to rotate and a chassis for supporting the arm 500 to rotate are also included.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A heat dissipation device based on air multiplication, characterized in that: The invention comprises a transfer tube (100) and a multiplier tube (200) whose ends are connected to each other, wherein one end of the transfer tube (100) away from the multiplier tube (200) is used to be connected to an air outlet (310) of a fan (300), and one end of the multiplier tube (200) away from the transfer tube (100) is sealed, and a narrow air outlet (210) is provided on a side of the multiplier tube (200), and the width of the multiplier tube (200) gradually decreases from a side away from the narrow air outlet (210) to a side where the narrow air outlet (210) is provided.

2. The heat dissipation device based on air multiplication according to claim 1, characterized in that: The width of the narrow air outlet (210) is 0.2 cm-0.8 cm.

3. The heat dissipation device based on air multiplication according to claim 1, characterized in that: The length of the narrow and long air outlet (210) is greater than 2 cm and less than 5 cm.

4. The heat dissipation device based on air multiplication according to claim 1, characterized in that: The narrow and long air outlet (210) is provided with a plurality of grilles (220) along its length direction, and the plurality of grilles (220) divide the narrow and long air outlet (210) into a plurality of small air outlets.

5. The heat dissipation device based on air multiplication according to claim 4, characterized in that: The length of the small air outlet along the length direction of the narrow and long air outlet (210) is greater than 0.4 cm and less than 1 cm.

6. The heat dissipation device based on air multiplication according to claim 1, characterized in that: The side of the multiplier tube (200) away from the narrow and long air outlet (210) is arc-shaped in the width direction thereof.

7. The heat dissipation device based on air multiplication according to claim 1, characterized in that: At one end of the multiplier tube (200) away from the transfer tube (100), a first arc-shaped guide section (230) is formed on a side away from the narrow air outlet (210) for guiding the airflow flowing toward the end toward the narrow air outlet (210).

8. The heat dissipation device based on air multiplication according to claim 1, characterized in that: At one end of the multiplier tube (200) close to the transfer tube (100), a second arc-shaped flow guide section (240) is formed on a side close to the narrow and long air outlet (210) so that the airflow from the transfer tube (100) flows smoothly toward the multiplier tube (200).

9. The heat dissipation device based on air multiplication according to claim 1, characterized in that: The transfer tube (100) gradually narrows from an end away from the multiplier tube (200) to an end close to the multiplier tube (200), so as to smoothly guide the wind of the fan (300) to the multiplier tube (200).

10. A stage light, characterized in that: The heat dissipation device comprises the heat dissipation device according to any one of claims 1 to 9, wherein the heat dissipation device is located in the lamp head (400) of the stage light, and the lamp head (400) is also provided with a light source (4100) for emitting light and a flat effect component for selectively intercepting light to produce light effects, and the narrow and long air outlet (210) faces the effect component.

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