Radiators, cooling systems and stage lights

Abstract

This invention relates to a heat sink, a heat dissipation system, and a stage light. It includes a heat sink base plate, a group of heat pipes, and a group of heat dissipation fins. The top of the heat dissipation fins has a receiving space adapted to the shape of the heat sink base plate. A portion of the tube units in the heat pipe group is thermally connected to the heat sink base plate, and another portion of the tube units extends from inside the heat dissipation fins to at least one side of the fins in a left-right direction. At least one row of heat pipes in the heat pipe group is bent such that the portion of the tube unit in that row connected to the heat sink base plate and the portion connected to the heat dissipation fins are not on the same horizontal straight line. One row of heat pipes has a certain degree of bending, i.e., it is a non-linear heat pipe, thereby increasing the spacing between adjacent rows of heat pipes passing through the heat dissipation fins. This allows the ends of the heat pipes to be distributed across the surface of the heat dissipation fins, preventing multiple rows of heat pipes from being concentrated in the middle of the heat dissipation fins, which would affect heat conduction efficiency.

Description

Technical Field

[0001] This invention relates to the field of stage lighting technology, and more particularly to a heat sink, a heat dissipation system, and a stage light using the heat dissipation system. Background Technology

[0002] Traditional stage light heat sinks typically come in the following design types:

[0003] The first type, as shown in the appendix. Figure 1 As shown, the heat sink base plate and the heat sink fin assembly are in thermal conduction contact. One end of the heat pipe passes through the heat sink base plate and is welded to the heat sink base plate by a high-temperature welding process. The other end is bent from the outside of the heat sink base plate and inserted into the heat sink fin assembly. The bent part of the heat pipe needs to avoid the heat sink fins, so this part of the heat pipe cannot have any contact with the heat sink fins. The bent part of the heat pipe is placed on the outside of the heat sink, which makes the heat sink larger, the heat dissipation efficiency low, and also increases the cost of consumables.

[0004] The second type, as shown in the appendix. Figure 2 As shown, heat dissipation fins are installed on the left, right, and bottom sides of the heat dissipation base plate. One or more rows of heat pipes are tightly connected to the center of the base plate. These heat pipes are all straight, with their ends passing through the heat dissipation fins on the left and right sides. The spacing between adjacent rows of heat pipes is small. Therefore, when the heat pipes absorb heat from the heat dissipation base plate and transfer it to the heat dissipation fins, the heat concentrates in the center of the fins, resulting in low heat dissipation efficiency and uneven heat dissipation, which cannot meet the heat dissipation requirements of high-power lighting fixtures. Of course, increasing the spacing between adjacent rows of heat pipes would require increasing the thickness of the heat dissipation base plate, which would increase the size of the heat source relative to the base plate, leading to reduced conduction efficiency and increased design costs. This design method is generally not adopted.

[0005] In view of the shortcomings of existing radiators, there is an urgent need to propose a new type of radiator that can overcome the above-mentioned technical defects. Summary of the Invention

[0006] To solve one of the above-mentioned technical problems, the present invention provides a heat sink, a heat dissipation system, and a stage lamp using the heat dissipation system. The heat sink has high heat dissipation efficiency, small size, and meets the heat dissipation requirements of high-power lamps.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A heat sink includes a heat sink base plate, a heat pipe group consisting of at least two rows of several tube units, and a heat sink fin group consisting of several heat sink fins arranged side by side at intervals in a left-right direction. The top of the heat sink fin group is provided with a receiving space adapted to the shape of the heat sink base plate. A portion of the tube units in the heat pipe group is thermally connected to the heat sink base plate, and another portion of the tube units in the heat pipe group passes through the interior of the heat sink fin group to at least one side of the left-right direction of the heat sink fin group. At least one row of heat pipes in the heat pipe group is bent so that the portion of the tube unit in that row connected to the heat sink base plate and the portion of the tube unit connected to the heat sink fin group are not on the same horizontal straight line.

[0009] Further defined, the heat pipe group includes a first row of heat pipes, the tube body unit of the first row of heat pipes is straight, the middle part of the tube body unit of the first row of heat pipes is in close contact with the heat dissipation base plate, and the two ends of the tube body unit of the first row of heat pipes are respectively inserted through the left and right sides of the heat dissipation fin group.

[0010] Further defined, the heat pipe group includes a first row of heat pipes, the tube units in the first row of heat pipes are of different sizes and are U-shaped, the openings of the tube units are arranged in descending order in the same direction to form a layered surrounding structure, the tube unit has a U-shaped segment and a first straight segment integrally formed with both ends of the U-shaped segment, the tube unit is in close contact with the heat dissipation base plate through the U-shaped segment, and the tube unit is inserted through the first straight segment on the left or right side of the heat dissipation fin group.

[0011] Further defined, the first row of heat-conducting pipes is symmetrically arranged in two groups, and the openings of the two groups of pipe units face the left and right sides respectively.

[0012] Further defined, the heat dissipation base plate includes a first heat-conducting plate and a second heat-conducting plate, and the first row of heat-conducting pipes is sandwiched between the first heat-conducting plate and the second heat-conducting plate.

[0013] Further defined, the heat pipe group includes a second row of heat pipes, the tube body unit of the second row of heat pipes includes a second straight section, a first bent section and a third straight section, the two ends of the second straight section are integrally formed with the third straight section through the first bent section, the second straight section is in close contact with the lower part of the heat dissipation base plate, and the two third straight sections are inserted through the left and right sides of the heat dissipation fin group.

[0014] Further defined, a portion of the tube body units in the second row of heat pipes are divided into a first heat pipe group, and the length of the second straight section of the tube body unit of the first heat pipe group after connecting the two ends of the first bent section is less than or equal to the width of the heat dissipation base plate in the left and right directions, such that the third straight section passes through the heat dissipation fins on the left and right sides of the heat dissipation base plate.

[0015] Further defined, the remaining two tube units in the second row of heat pipes are divided into a second heat pipe group. The two tube units in the second heat pipe group are distributed on the front and rear sides of the first heat pipe group. The length of the second straight section of the tube unit of the second heat pipe group is greater than or equal to the width of the heat dissipation base plate in the left and right direction, so that the heat dissipation base plate is tightly connected to the front and rear ends of each heat dissipation fin below the heat dissipation base plate through the second straight section.

[0016] Further defined, the lower part of the heat dissipation base plate is provided with a plurality of first grooves extending in the left and right directions, the top of the heat dissipation fin assembly is provided with second grooves corresponding to the positions of the first grooves, and the first grooves and the second grooves together form a first through hole adapted to the second straight section of the tube body unit of the second row of heat conduction pipes.

[0017] Further defined, the heat pipe group includes a third row of heat pipes, and the tube body unit of the third row of heat pipes includes a fourth straight section, a second bent section and a fifth straight section. The second bent section is bent at 180 degrees. The fourth straight section is integrally formed with the second bent section and the fifth straight section. The fourth straight section of the third row of heat pipes is in close contact with the lower part of the heat dissipation base plate. The fifth straight section of the third row of heat pipes passes through the heat dissipation fin group.

[0018] Further defined, the lower part of the heat dissipation base plate is provided with a plurality of third grooves extending in the left and right directions, the top of the heat dissipation fin assembly is provided with a fourth groove corresponding to the position of the third groove, and the third groove and the fourth groove together form a second through hole adapted to the fourth straight section of the tube body unit of the third row of heat conduction pipes.

[0019] Further defined, the length of the fourth straight segment is less than or equal to the width of the heat dissipation base plate in the left-right direction, and the length of the fourth straight segment is also less than the length of the fifth straight segment.

[0020] Further defined, the heat pipe group includes a second row of heat pipes, and the tube body unit of the second row of heat pipes includes a second straight section, a first bent section and a third straight section. The two ends of the second straight section are integrally formed with the third straight section through the first bent section. The second straight section is in close contact with the lower part of the heat dissipation base plate. The two third straight sections are disposed on the left and right sides of the heat dissipation fin group. The tube body units of the third row of heat pipes are respectively disposed between the tube body units of the adjacent second row of heat pipes, so that the tube body units of the second row of heat pipes and the tube body units of the third row of heat pipes are staggered, and the openings of the tube body units of the adjacent third row of heat pipes face opposite directions.

[0021] A heat dissipation system includes a heat dissipation cavity and a sealing cavity disposed inside a lamp body. The heat dissipation cavity is equipped with a heat sink, and the heat sink includes a heat dissipation base plate. The sealing cavity is provided with a light source mounted on the heat dissipation base plate.

[0022] Further defined, a mounting plate is fixedly disposed inside the sealed cavity, close to and above the light source, and a light-transmitting hole is opened on the mounting plate, which is directly opposite to the position of the light source. A first cooling fan with its air outlet blowing towards the center of the light source is provided on the upper end surface and / or lower end surface of the mounting plate.

[0023] Further defined, the mounting plate has an air guide on its lower end face, the air guide is provided with an air duct that gradually slopes upward toward the center of the light source, and the air duct is connected to the air outlet of the first cooling fan on the lower end face of the mounting plate.

[0024] Further defined, a plurality of second cooling fans are arranged side by side on the side end of the mounting plate, and the air outlets of the second cooling fans face the center of the light source.

[0025] A stage light, including the aforementioned heat dissipation system.

[0026] By adopting the above technical solution, the present invention has at least the following beneficial effects:

[0027] 1. One row of heat pipes has a certain degree of curvature, i.e., it is a non-linear heat pipe. Without increasing the thickness of the heat dissipation base plate, the spacing between the adjacent rows of heat pipes passing through the heat dissipation fins is increased, so that the ends of the heat pipes are dispersedly passed through the heat dissipation fin plate surface, avoiding multiple rows of heat pipes being concentrated in the middle of the heat dissipation fins, which would affect the heat conduction efficiency.

[0028] 2. The tube units in the first row of heat pipes are of varying sizes and U-shaped. The openings of the tube units face the same direction and are arranged in descending order to form a layered enclosing structure. Each tube unit has a U-shaped segment and a first straight segment integrally formed with both ends of the U-shaped segment. The tube unit is in close contact with the heat dissipation base plate through the U-shaped segment, and the tube unit passes through the first straight segment on the left or right side of the heat dissipation fin assembly. The U-shaped heat pipe design can further increase the contact area between the first row of heat pipes and the heat dissipation base plate, thereby increasing the heat conduction efficiency of the heat sink.

[0029] 3. The heat dissipation base plate is in direct contact with the heat dissipation fin assembly, and the heat dissipation base plate is thermally connected to the heat dissipation fin assembly through multiple rows of heat dissipation pipes. This allows the heat from the light source to be quickly and evenly directed to the heat dissipation fin assembly, which greatly improves the heat conduction of the heat sink and maximizes the even dissipation of heat, as well as maximizing the heat transfer and heat dissipation capabilities of the heat sink. Attached Figure Description

[0030] Figure 1 This is a structural diagram of the first type of heat sink in the prior art;

[0031] Figure 2 This is a structural diagram of the second type of heat sink in the prior art;

[0032] Figure 3 This is a structural diagram of the heat sink created by the present invention;

[0033] Figure 4 This is an exploded view of the heat sink created by this invention;

[0034] Figure 5 This is a structural distribution diagram of the heat pipe group;

[0035] Figure 6 This is a structural diagram of the fixed fastener;

[0036] Figure 7 This is an assembly structure diagram of the second and third rows of heat pipes;

[0037] Figure 8 These are structural diagrams of heat pipes of different shapes;

[0038] Figure 9 This is a structural diagram of a stage light;

[0039] Figure 10 This is a structural diagram showing the radiator installed on the stage light. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] As attached Figure 3 As shown, a heat sink includes a heat sink base plate 1, a heat pipe group 2 consisting of at least two rows of heat conduction pipes composed of several pipe units, and a heat sink fin group 3 consisting of several heat sink fins arranged side by side at intervals in the left-right direction. The top of the heat sink fin group 3 is provided with a receiving space 30 that is adapted to the shape of the heat sink base plate 1. Compared with the prior art, where the entire top of the heat sink base plate 1 and the heat sink fin group 3 are in heat conduction contact, the present invention allows the heat sink base plate 1 to be accommodated in the receiving space 30 on the top of the heat sink fin group 3, making the overall structure of the heat sink more compact and effectively reducing the volume of the heat sink.

[0043] As attached Figure 3 As shown, a portion of the tube unit in the heat pipe group 2 is thermally connected to the heat dissipation base plate 1, and another portion of the tube unit in the heat pipe group 2 passes through the heat dissipation fin group 3 from inside to at least one side of the heat dissipation fin group 3 in the left-right direction. At least one row of heat pipes in the heat pipe group 2 is bent so that the portion of the tube unit in this row that is connected to the heat dissipation base plate 1 and the portion of the tube unit that is connected to the heat dissipation fin group 3 are not on the same horizontal straight line. In other words, this row of heat pipes has a certain degree of bending, i.e., it is a non-linear heat pipe. Without increasing the thickness of the heat dissipation base plate 1, the spacing between adjacent rows of heat pipes passing through the heat dissipation fins is increased, so that the ends of the heat pipes are dispersedly passed through the heat dissipation fin plate surface, avoiding multiple rows of heat pipes being concentrated in the middle of the heat dissipation fins, which would affect the heat conduction efficiency.

[0044] Design scheme 1 for the tube body unit of the first row of heat pipes 21: The heat pipe group 2 includes a first row of heat pipes 21. The tube body unit of the first row of heat pipes 21 is straight. The middle part of the tube body unit of the first row of heat pipes 21 is in close contact with the heat dissipation base plate 1. The two ends of the tube body unit of the first row of heat pipes 21 are respectively inserted into the left and right sides of the heat dissipation fin group 3. The first row of heat pipes 21 is used for heat conduction between the heat dissipation fin group 3 and the heat dissipation base plate 1. This design scheme is not shown in the figure.

[0045] Design scheme two for the tube body unit of the first row of heat pipes 21: as shown in the attached diagram. Figure 4 and attached Figure 5 As shown, the heat pipe group 2 includes a first row of heat pipes 21. The pipe units in the first row of heat pipes 21 are of different sizes and are U-shaped. The openings of the pipe units face the same direction and are arranged from large to small to form a layered enclosing structure. Each pipe unit has a U-shaped segment 211 and a first straight segment 212 integrally formed with both ends of the U-shaped segment 211. The pipe unit is in close contact with the heat dissipation base plate 1 through the U-shaped segment 211, and the pipe unit passes through the first straight segment 212 to the left or right side of the heat dissipation fin group 3. Compared with the above-mentioned scheme one, the design of the U-shaped heat pipe can further increase the contact area between the first row of heat pipes 21 and the heat dissipation base plate 1, thereby increasing the heat conduction efficiency of the heat sink. This can be regarded as a preferred design scheme.

[0046] As attached Figure 4 and attached Figure 5 As shown, the first row of heat pipes 21 is symmetrically arranged in two sets, with the openings of the two sets of pipe units facing the left and right sides respectively, further increasing the contact area between the first row of heat pipes 21 and the heat dissipation base plate 1, and also enhancing the stability of the overall structure of the heat sink; the heat dissipation base plate 1 includes a first heat-conducting plate 11 and a second heat-conducting plate 12, with the first row of heat pipes 21 sandwiched between the first heat-conducting plate 11 and the second heat-conducting plate 12; specifically, both the first heat-conducting plate 11 and the second heat-conducting plate 12 are provided with grooves for accommodating the first row of heat pipes 21, so that the first row of heat pipes 21 are tightly fitted between the first heat-conducting plate 11 and the second heat-conducting plate 12.

[0047] As attached Figure 6 To be continued Figure 8As shown, the heat pipe group 2 includes a second row of heat pipes 22. The tube body unit of the second row of heat pipes 22 includes a second straight section 221, a first bent section 222, and a third straight section 223. The first bent section 222 is in the shape of a snake or an S. The two ends of the second straight section 221 are integrally formed with the third straight section 223 through the first bent section 222. The second straight section 221 is in close contact with the lower part of the heat dissipation base plate 1. The two third straight sections 223 are inserted through the left and right sides of the heat dissipation fin group 3. The first bent section 222 serves as a transition section connecting the second straight section 221 and the third straight section 223, so that the second straight section 221 and the third straight section 223 are not on the same horizontal straight line, thereby increasing the distance between the third straight section 223 of the second row of heat pipes 22 and the first row of heat pipes 21.

[0048] As attached Figure 6 To be continued Figure 8 As shown, a portion of the tube units in the second row of heat pipes 22 are divided into a first heat pipe group 22a. For tube units of equal length, the length L1 of the second straight section 221 of the tube unit in the first heat pipe group 22a, after connecting the two ends of the first bent section 222, is less than or equal to the width W of the heat dissipation base plate 1 in the left-right direction. This allows the third straight section 223 to pass through the heat dissipation fins on both sides of the heat dissipation base plate 1. Consequently, when the second row of heat pipes 22 extends beyond the left and right sides of the heat dissipation base plate 1, its tube body is a straight section rather than a bent section. Because the straight section of the tube body can form more fixing points with the heat dissipation fins, it can support more heat dissipation fins and increase the heat dissipation area of ​​the heat sink. This fixing point can be understood as the heat dissipation fins having through holes adapted to the heat pipes. The edge of the through hole has a rounded flange. After the heat pipe passes through the through hole, it is fixed to the rounded flange. This fixed position can be called the first fixing point 101.

[0049] As attached Figure 7 As shown, the lower part of the heat dissipation base plate 1 is provided with a plurality of first grooves 13 extending in the left and right directions at intervals. The top of the heat dissipation fin group 3 is provided with second grooves 31 corresponding to the positions of the first grooves 13. The first grooves 13 and the second grooves 31 are mutually enclosed to form a first through hole that is adapted to the second straight section 221 of the tube body unit of the second row of heat conduction pipes 22. The lower part of the heat dissipation base plate 1 can directly contact the heat dissipation fins, which is beneficial to increase the heat dissipation efficiency of the heat dissipation base plate 1 and the heat dissipation fins. The lower part of the heat dissipation base plate 1 can also indirectly contact the heat dissipation fins through the second row of heat conduction pipes 22 to improve the heat conduction efficiency of the heat dissipation base plate 1.

[0050] As attached Figure 6 To be continued Figure 8As shown, the remaining two tube units in the second row of heat pipes 22 are divided into a second heat pipe group 22b. The two tube units in the second heat pipe group 22b are distributed on the front and rear sides of the first heat pipe group 22a. The length L2 of the second straight section 221 of the tube unit of the second heat pipe group 22b is greater than or equal to the width W of the heat dissipation base plate 1 in the left and right direction, so that the heat dissipation base plate 1 is tightly connected to the front and rear ends of each heat dissipation fin below the heat dissipation base plate 1 through the second straight section 221. The heat dissipation base plate 1, the second straight section 221 and the heat dissipation fin below the heat dissipation base plate 1 together form a fixing buckle, which increases the stability of the connection between the front and rear ends of each heat dissipation fin below the heat dissipation base plate 1, thereby fixing more heat dissipation fins and further increasing the heat dissipation area of ​​the heat sink. Similarly, the fixing position can be understood as follows: each heat sink fin has a notch (each notch forms the first groove 13), and the edge of the notch has a flange. The flange can be fixedly connected to the bottom of the heat sink base plate to hold the heat sink pipe in place. The fixing position here can be called the second fixing position 102. If the heat pipe here is a bent section, it cannot be fixed, and the heat sink fins cannot be fixed.

[0051] As attached Figure 8 As shown, to further increase the heat dissipation efficiency of the radiator, the heat pipe group 2 also includes a third row of heat pipes 23. The tube body unit of the third row of heat pipes 23 includes a fourth straight section 231, a second bent section 232, and a fifth straight section 233. The second bent section 232 is bent at 180 degrees. The fourth straight section 231 is integrally formed with the fifth straight section 233 through the second bent section 232. The fourth straight section 231 of the third row of heat pipes 23 is in close contact with the lower part of the heat dissipation base plate 1. The fifth straight section 233 of the third row of heat pipes 23 passes through the heat dissipation fin group 3. Specifically, the third straight section 223 of the first row of heat pipes 21, the third straight section 223 of the second row of heat pipes 22, and the fifth straight section 233 of the third heat pipe are sequentially passed through the heat dissipation fins on the left and right sides of the heat dissipation base plate 1 from top to bottom. These heat pipes can be dispersed to the end face of the heat dissipation fins, which is more conducive to the uniformity of heat dissipation of the radiator.

[0052] Further explanation is provided in the attached document. Figure 7 As shown, the interior of the heat dissipation fin assembly 3 has a clearance space 300 for the first bending section 222 and the second bending section 232 to accommodate these transition sections, so that the heat dissipation fin assembly can be well accommodated inside the heat dissipation fin assembly.

[0053] As attached Figure 7As shown, the lower part of the heat dissipation base plate 1 is provided with a plurality of third grooves 14 extending in the left-right direction at intervals. The top of the heat dissipation fin assembly 3 is provided with fourth grooves 32 corresponding to the positions of the third grooves 14. The third grooves 14 and the fourth grooves 32 together form a second through hole adapted to the fourth straight section 231 of the tube body unit of the third row of heat-conducting pipes 23. Similarly, the lower part of the heat dissipation base plate 1 can directly contact the heat dissipation fins, which is beneficial to increasing the heat dissipation efficiency of the heat dissipation base plate 1 and the heat dissipation fins. The lower part of the heat dissipation base plate 1 can also indirectly contact the heat dissipation fins through the third row of heat-conducting pipes 23 to improve the heat conduction efficiency of the heat dissipation base plate 1.

[0054] As attached Figure 8 As shown, the length L3 of the fourth straight segment 231 is less than or equal to the width of the heat dissipation base plate 1W in the left-right direction. The length of the fourth straight segment 231 is also less than the length L4 of the fifth straight segment 233. That is to say, the length of the fifth straight segment 233 is longer than the length of the fourth straight segment 231, so that more area of ​​the third row of heat pipes 23 contacts the heat dissipation fins, thereby increasing the contact area between the third row of heat pipes 23 and the heat dissipation fins.

[0055] As attached Figure 7 As shown, the tube body units of the third row of heat pipes 23 are respectively arranged between the tube body units of the adjacent second row of heat pipes 22, so that the tube body units of the second row of heat pipes 22 and the tube body units of the third row of heat pipes 23 are staggered, and the openings of the tube body units of the adjacent third row of heat pipes 23 face opposite directions, making the overall structure of the heat sink more compact and the design layout more rational.

[0056] As attached Figure 9 and attached Figure 10 As shown, a heat dissipation system includes a heat dissipation cavity 4 and a sealing cavity 5 inside the lamp body. The heat dissipation cavity 4 is equipped with a heat sink, which includes a heat dissipation base plate 1. The sealing cavity 5 is equipped with a light source mounted on the heat dissipation base plate 1. The sealing cavity 5 is fixedly equipped with a mounting plate 51 close to and above the light source. The mounting plate 51 has a light-transmitting hole that is directly opposite to the position of the light source. The upper end face and / or lower end face of the mounting plate 51 are provided with a first cooling fan 6 whose air outlet blows towards the center of the light source. The first cooling fan 6 can dissipate heat from the surface of the light source.

[0057] As attached Figure 9 and attached Figure 10As shown, the lower end face of the mounting plate 51 is provided with an air guide 7. The air guide 7 is provided with an air duct 71 that gradually slopes upward toward the center of the light source from bottom to top. The air duct 71 is connected to the air outlet of the first cooling fan 6 on the lower end face of the mounting plate 51. The air duct 71 is inclined upward, so that the first cooling fan 6 can dissipate heat for the surface of the light source while also dissipating heat for the light effect component pattern sheet, color wheel, etc. located directly above the light source.

[0058] As attached Figure 9 and attached Figure 10 As shown, multiple second cooling fans 8 are arranged side by side on the side end of the mounting plate 51. The air outlets of the second cooling fans 8 face the center of the light source. The second cooling fans 8 can further increase the gas flow rate inside the sealed cavity 5, so that the hot and cold air in the lamp body are fully mixed, and prevent the hot air from being too concentrated at the light source, thereby reducing the risk of the light source burning out due to overheating.

[0059] This invention provides a stage lamp that utilizes the above-described heat dissipation system.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radiator, characterized in that, It includes a heat dissipation base plate (1), a heat pipe group (2) consisting of at least two rows of tube units, and a heat dissipation fin group (3) consisting of several heat dissipation fins arranged side by side in a left-right direction. The top of the heat dissipation fin group (3) is provided with a receiving space (30) that is adapted to the shape of the heat dissipation base plate (1). A part of the tube unit in the heat pipe group (2) is thermally connected to the heat dissipation base plate (1). Another part of the tube unit in the heat pipe group (2) passes through the heat dissipation fin group (3) to at least one side of the heat dissipation fin group (3) in the left-right direction. At least one row of heat pipes in the heat pipe group (2) is bent so that the part of the tube unit in that row that is connected to the heat dissipation base plate (1) and the part of the tube unit that is connected to the heat dissipation fin group (3) are not on the same horizontal straight line.

2. The radiator according to claim 1, characterized in that, The heat pipe group (2) includes a first row of heat pipes (21). The tube body unit of the first row of heat pipes (21) is straight. The middle part of the tube body unit of the first row of heat pipes (21) is in close contact with the heat dissipation base plate (1). The two ends of the tube body unit of the first row of heat pipes (21) are respectively inserted into the left and right sides of the heat dissipation fin group (3).

3. The radiator according to claim 1, characterized in that, The heat pipe group (2) includes a first row of heat pipes (21). The tube units in the first row of heat pipes (21) are of different sizes and are U-shaped. The openings of the tube units are arranged in the same direction from large to small to form a layered surrounding structure. The tube unit has a U-shaped section (211) and a first straight section (212) integrally formed with both ends of the U-shaped section (211). The tube unit is in close contact with the heat dissipation base plate (1) through the U-shaped section (211). The tube unit is inserted through the first straight section (212) on the left or right side of the heat dissipation fin group (3).

4. The radiator according to claim 3, characterized in that, The first row of heat-conducting pipes (21) is symmetrically arranged in two groups, and the openings of the two groups of pipe units face the left and right sides respectively.

5. The radiator according to any one of claims 2 to 4, characterized in that, The heat dissipation base plate (1) includes a first heat-conducting plate (11) and a second heat-conducting plate (12), and the first row of heat-conducting pipes (21) is sandwiched between the first heat-conducting plate (11) and the second heat-conducting plate (12).

6. The radiator according to claim 1, characterized in that, The heat pipe group (2) includes a second row of heat pipes (22). The tube body unit of the second row of heat pipes (22) includes a second straight section (221), a first bent section (222) and a third straight section (223). The two ends of the second straight section (221) are integrally formed with the third straight section (223) through the first bent section (222) and the second straight section (221) is in close contact with the lower part of the heat dissipation base plate (1). The two third straight sections (223) are inserted on the left and right sides of the heat dissipation fin group (3).

7. The radiator according to claim 6, characterized in that, A portion of the tube body unit in the second row of heat pipes (22) is divided into a first heat pipe group (22a). The length of the second straight section (221) of the tube body unit of the first heat pipe group (22a) after connecting the two ends of the first bent section (222) is less than or equal to the width of the heat dissipation base plate (1) in the left and right directions, so that the third straight section (223) passes through the heat dissipation fins on the left and right sides of the heat dissipation base plate (1).

8. The radiator according to claim 7, characterized in that, The remaining two tube units in the second row of heat pipes (22) are divided into the second heat pipe group (22b). The two tube units in the second heat pipe group (22b) are distributed on the front and rear sides of the first heat pipe group (22a). The length of the second straight section (221) of the tube unit of the second heat pipe group (22b) is greater than or equal to the width of the heat dissipation base plate (1) in the left and right direction, so that the heat dissipation base plate (1) is tightly connected to the front and rear ends of each heat dissipation fin below the heat dissipation base plate (1) through the second straight section (221).

9. The radiator according to any one of claims 6 to 8, characterized in that, The lower part of the heat dissipation base plate (1) is provided with a plurality of first grooves (13) extending in the left and right directions. The top of the heat dissipation fin group (3) is provided with second grooves (31) corresponding to the positions of the first grooves (13). The first grooves (13) and the second grooves (31) are mutually enclosed to form a first through hole that is adapted to the second straight section (221) of the tube body unit of the second row of heat conduction pipes (22).

10. The radiator according to claim 1, characterized in that, The heat pipe group (2) includes a third row of heat pipes (23). The tube body unit of the third row of heat pipes (23) includes a fourth straight section (231), a second bent section (232) and a fifth straight section (233). The second bent section (232) is bent at 180 degrees. The fourth straight section (231) is integrally formed with the fifth straight section (233) through the second bent section (232). The fourth straight section (231) of the third row of heat pipes (23) is in close contact with the lower part of the heat dissipation base plate (1). The fifth straight section (233) of the third row of heat pipes (23) passes through the heat dissipation fin group (3).

11. The radiator according to claim 10, characterized in that, The lower part of the heat dissipation base plate (1) is provided with a number of third grooves (14) extending in the left and right directions. The top of the heat dissipation fin group (3) is provided with a fourth groove (32) corresponding to the position of the third groove (14). The third groove (14) and the fourth groove (32) are mutually enclosed to form a second through hole that is adapted to the fourth straight section (231) of the tube body unit of the third row of heat conduction pipes (23).

12. The radiator according to claim 10, characterized in that, The length of the fourth straight segment (231) is less than or equal to the width of the heat dissipation base plate (1) in the left-right direction, and the length of the fourth straight segment (231) is also less than the length of the fifth straight segment (233).

13. The radiator according to any one of claims 10 to 12, characterized in that, The heat pipe group (2) includes a second row of heat pipes (22). The tube body unit of the second row of heat pipes (22) includes a second straight section (221), a first bent section (222) and a third straight section (223). The two ends of the second straight section (221) are integrally formed with the third straight section (223) through the first bent section (222) and the second straight section (221). The second straight section (221) is in close contact with the lower part of the heat dissipation base plate (1). The two third straight sections (223) are inserted through the left and right sides of the heat dissipation fin group (3). The tube body units of the third row of heat pipes (23) are respectively arranged between the tube body units of the adjacent second row of heat pipes (22) so that the tube body units of the second row of heat pipes (22) and the tube body units of the third row of heat pipes (23) are staggered and the openings of the tube body units of the adjacent third row of heat pipes (23) face opposite directions.

14. A heat dissipation system, characterized in that, It includes a heat dissipation cavity (4) and a sealing cavity (5) inside the lamp body. The heat dissipation cavity (4) is equipped with a heat sink according to any one of claims 1 to 13. The heat sink includes a heat dissipation base plate (1). The sealing cavity (5) is provided with a light source installed on the heat dissipation base plate (1).

15. The heat dissipation system according to claim 14, characterized in that, A mounting plate (51) is fixedly installed in the sealed cavity (5) and is located close to and above the light source. A light-transmitting hole is opened on the mounting plate (51) and is directly opposite to the position of the light source. A first cooling fan (6) with its air outlet blowing towards the center of the light source is provided on the upper end surface and / or lower end surface of the mounting plate (51).

16. The heat dissipation system according to claim 15, characterized in that, The mounting plate (51) has an air guide (7) on its lower end face. The air guide (7) has an air duct (71) that gradually slopes towards the center of the light source from bottom to top. The air duct (71) is connected to the air outlet of the first cooling fan (6) on the lower end face of the mounting plate (51).

17. The heat dissipation system according to claim 15, characterized in that, Multiple second cooling fans (8) are arranged side by side on the side of the mounting plate (51), and the air outlets of the second cooling fans (8) face the center of the light source.

18. A stage light, characterized in that, It includes the heat dissipation system described in any one of claims 14 to 17.

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