Heat dissipation system with stepless rotary power supply

Abstract

The utility model belongs to lighting equipment technical field discloses a kind of heat dissipation systems with endless rotating power supply, comprising: rotary transmission unit, including motor, the driving gear driven by this motor, the driven gear meshed with driving gear, and the output gear meshed with driven gear;Bulb mounting unit is used to fix bulb and is connected to the output gear, so that bulb rotates synchronously with output gear;Slip ring power supply unit, including electrically conductive slip ring, its rotor part is connected with bulb terminal through power line and is fixed on the associated components of output gear follow-up, stator part is connected with external power supply through power line and is fixed on system stationary component;The utility model, bulb 360 ° continuous rotation is driven by slip ring and gear transmission chain, so that bulb heat is uniform, there is no some part long-time overheating or overcooling, simultaneously make each area periodic exposure to cooling airflow on lamp ball surface, heat distribution uniformity is promoted, reduce the risk of rupture, bubble explosion etc. caused by thermal stress.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a heat dissipation system with stepless rotary power supply. Background Technology

[0002] Stage performances place stringent demands on lighting, requiring not only high brightness output but also accurate color reproduction and precise beam control. Ultra-high pressure mercury lamps (hereinafter referred to as bulbs) can meet these professional requirements due to their spectral characteristics. However, this high performance comes at the cost of significant energy conversion losses—only about 25% of the electrical energy is converted into visible light, while the remaining 75% is converted into heat. If such a high heat load cannot be dissipated effectively and promptly, it will lead to a series of serious problems: abnormally high mercury vapor pressure inside the bulb may cause it to explode; excessive evaporation of the electrode material will shorten the bulb's lifespan. Currently, bulb cooling is achieved through forced air cooling, where a blower generates forced airflow that carries away the heat accumulated in the bulb through vents.

[0003] Defects and shortcomings of existing technology: 1. Fixed bulb installation: The fixed angle between the bulb and the cooling fan prevents flexible airflow adjustment, leading to uneven heat dissipation in certain areas. Prolonged uneven heat dissipation can cause thermal stress concentration, resulting in localized overheating and devitrification or localized undercooling that prevents proper tungsten recycling, thus affecting heat dissipation and potentially causing the bulb to crack.

[0004] II. Partial Bulb Rotation: In the existing invention patent <>, the bulb can swing and rotate back and forth within a certain angle range. This method requires a certain amount of internal space in the lamp fixture, as the power cord needs space to twist. With limited space in the lamp fixture, the twisting power cord can easily interfere with other components. Since the power cord moves with the bulb, it may break after prolonged use, thus failing to conduct electricity properly. Furthermore, this rotation method only ensures uniform heating in a portion of the bulb, failing to achieve the 360° uniform heat dissipation effect of this invention. Utility Model Content

[0005] The main objective of this invention is to provide a heat dissipation system with stepless rotating power supply, aiming to solve the problem of uneven heat dissipation caused by the fixed angle between the bulb and the cooling fan, which prevents flexible adjustment of airflow direction. Long-term uneven heat dissipation can lead to thermal stress concentration, resulting in localized overheating and devitrification or localized undercooling of the bulb, preventing proper tungsten recovery and affecting heat dissipation, and even causing the bulb to break. While the bulb can rotate within a certain angle range, the power cord moves with the bulb, leading to the technical problem of power cord breakage after prolonged use.

[0006] To achieve the aforementioned objectives, the first aspect of this utility model proposes a heat dissipation system with stepless rotary power supply, comprising: A rotary transmission unit includes a motor, a drive gear driven by the motor, a driven gear meshing with the drive gear, and an output gear meshing with the driven gear. A bulb mounting unit is used to fix the bulb and connect it to the output gear, so that the bulb rotates synchronously with the output gear; The slip ring power supply unit includes a conductive slip ring. Its rotor part is connected to the bulb terminal via a power line and is fixed to the output gear related components for follow-up. Its stator part is connected to an external power source via a power line and is fixed to the stationary part of the system. The heat dissipation unit, which includes a blower and an air guide structure, is used to deliver cooling airflow to the surface of the bulb.

[0007] Furthermore, the bulb mounting unit includes an output gear fixing bracket and a bulb pressure ring. The output gear fixing bracket has a circular groove for accommodating the bulb, and the bulb pressure ring is fixed above the groove by screws to press the bulb.

[0008] Furthermore, the rotor of the slip ring power supply unit is fixed to the slip ring fixing component, which is connected to the bulb pressure ring through multiple cylinders to achieve synchronous rotation of the rotor and the bulb.

[0009] Furthermore, the stator of the slip ring power supply unit is mounted on the light-blocking bending sheet metal via the slip ring stator fixing component, and the light-blocking bending sheet metal and the motor fixing sheet metal are coaxially fixed to the output gear fixing bracket.

[0010] Furthermore, in the rotary transmission unit, the motor is mounted on the output gear mounting bracket via a motor fixing sheet metal, the drive gear is mounted on the motor output shaft, and the driven gear is mounted on the output gear mounting bracket and meshes with both the drive gear and the output gear simultaneously.

[0011] Furthermore, the rotor portion of the conductive slip ring of the slip ring power supply unit is rigidly connected to the bulb mounting bracket and the driven gear to achieve synchronous rotation.

[0012] Furthermore, the stator of the conductive slip ring is fixed to a flat sheet metal, which is connected to the system's stationary frame.

[0013] Furthermore, the bulb mounting unit includes a bulb holder, in which the bulb is embedded, and the air outlet of the heat dissipation unit points towards the bulb surface.

[0014] Furthermore, the airflow structure of the heat dissipation unit is provided with an adjustable-angle air outlet, with the air outlet outlet aligned with the concentrated heat-generating area of ​​the bulb.

[0015] Furthermore, the output gear is connected to the bulb mounting unit via an axially extending bracket, which causes the bulb mounting position to deviate from the gear meshing plane, thus preventing airflow obstruction.

[0016] Beneficial effects: 1. This utility model drives the bulb to rotate continuously 360° through a slip ring and gear transmission chain, which makes the bulb heat uniform and prevents any part from being overheated or undercooled for a long time. At the same time, it periodically exposes each area of ​​the bulb surface to the cooling airflow, improving the uniformity of heat distribution and reducing the risk of cracking caused by thermal stress.

[0017] 2. This invention achieves zero-contact current transmission at the rotating interface through the rotor-stator split structure of the conductive slip ring, eliminating the need for physical wire bending. This solves the problem of wire bending and breaking that occurs when a light bulb with a power cord rotates back and forth within a certain angle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a heat dissipation system with stepless rotary power supply according to an embodiment of the present invention; Figure 2 This is a side view schematic diagram of a heat dissipation system with stepless rotary power supply according to an embodiment of the present invention; Figure 3 This is a heat dissipation system with stepless rotary power supply according to an embodiment of the present invention. Figure 2 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 4 This is a schematic diagram of the heat dissipation system with stepless rotary power supply according to Embodiment 2 of this utility model.

[0019] in: 1-Light bulb; 2-Output gear mounting bracket; 3-Driven gear; 4-Drive gear; 5-Motor; 6-Motor mounting sheet metal; 7-Light bulb retaining ring; 8-Cylinder; 9-Slip ring fixing component; 10-Conductive slip ring; 11-Slip ring stator fixing component; 12-Light blocking bending sheet metal; 13-Heat dissipation unit; 14-Light bulb mounting bracket; 15-Flat sheet metal.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] Example 1 Reference Figures 1-4 An embodiment of this utility model provides a heat dissipation system with stepless rotary power supply, comprising: The rotary transmission unit includes a motor 5, a drive gear 4 driven by the motor 5, a driven gear 3 meshing with the drive gear 4, and an output gear meshing with the driven gear 3. A bulb mounting unit is used to fix bulb 1 and connect it to the output gear, so that bulb 1 rotates synchronously with the output gear; The slip ring power supply unit includes a conductive slip ring 10. Its rotor part is connected to the bulb 1 terminal via a power line and is fixed to the output gear related components for follow-up. Its stator part is connected to an external power source via a power line and is fixed to the stationary part of the system. The heat dissipation unit 13 includes a blower and an air guide structure for delivering cooling airflow to the surface of the bulb 1.

[0026] In this embodiment, the output shaft of the motor 5 in the rotary transmission unit is equipped with a drive gear 4, the drive gear 4 meshes with the driven gear 3, the driven gear 3 meshes with the output gear, and the output gear and the output gear fixing bracket 2 are integrally formed.

[0027] In the bulb mounting unit, bulb 1 is placed in the circular groove of the output gear fixing bracket 2 and locked by the bulb pressure ring 7.

[0028] In the slip ring power supply unit, the rotor power line of the conductive slip ring 10 is connected to the bulb 1 terminal and rotates with the output gear, while the stator power line is connected to an external power source such as a bulb driver.

[0029] In the heat dissipation unit, the blower directs airflow to the surface of the bulb 1 through the air duct 13.

[0030] Furthermore, the gear transmission chain enables the bulb 1 to rotate continuously 360 degrees, and the slip ring power supply prevents the wires from breaking; forced air cooling combined with rotational heat dissipation eliminates local overheating / overcooling and reduces the risk of explosion.

[0031] The bulb mounting unit includes an output gear fixing bracket 2 and a bulb retaining ring 7. The output gear fixing bracket 2 has a circular groove for accommodating the bulb 1, and the bulb retaining ring 7 is fixed above the groove by screws to press the bulb 1.

[0032] When installing bulb 1, place bulb 1 into the groove of the output gear fixing bracket 2 with the bulb socket terminal facing upwards; cover with bulb retaining ring 7 and tighten it onto the threaded hole of the output gear fixing bracket 2 with 4 screws to form axial clamping force. The groove positioning and retaining ring locking ensure that bulb 1 does not shift during high-speed rotation, and the opening of the retaining ring does not obstruct the heat dissipation airflow.

[0033] The rotor of the slip ring power supply unit is fixed to the slip ring fixing member 9, which is connected to the bulb pressure ring 7 through multiple cylinders 8 to achieve synchronous rotation of the rotor and the bulb 1.

[0034] Slip ring rotor installation steps: Insert the conductive slip ring 10 into the circular groove of the slip ring fixing member 9; fit the four legs of the slip ring fixing member 9 into the four cylinders 8; fix the other end of the cylinder 8 vertically to the surface of the bulb pressure ring 7. The cylinders 8 form a rigid connection bridge, making the slip ring rotor-pressure ring-bulb 1 a synchronously rotating body.

[0035] The stator of the slip ring power supply unit is mounted on the light-blocking bending sheet metal 12 via the slip ring stator fixing part 11. The light-blocking bending sheet metal 12 and the motor fixing sheet metal 6 are coaxially fixed to the output gear fixing bracket 2.

[0036] The slip ring stator fixing component 11 is sleeved onto the stator housing of the conductive slip ring 10; the slip ring stator fixing component 11 is connected to the light-blocking bent sheet metal 12 by bolts; the light-blocking bent sheet metal 12 and the motor fixing sheet metal 6 are stacked coaxially and locked together in the cylindrical hole of the output gear fixing bracket 2. The light-blocking bent sheet metal 12 has the dual functions of electromagnetic shielding and structural bearing, reducing the impact of motor electromagnetic interference on the slip ring signal.

[0037] In the rotary transmission unit, the motor 5 is mounted on the output gear fixing bracket 2 via the motor fixing sheet metal 6, the drive gear 4 is mounted on the output shaft of the motor 5, and the driven gear 3 is mounted on the output gear fixing bracket 2 and meshes with the drive gear 4 and the output gear simultaneously.

[0038] The motor 5 is vertically mounted on the motor mounting sheet metal 6 by bolts; the drive gear 4 is directly sleeved on the motor output shaft; the driven gear 3 is mounted on the side wall of the output gear mounting bracket 2 via bearings, and meshes with the drive gear 4 and the output gear on the outer edge of the output gear mounting bracket 2. The three-stage gear reduction ratio reduces the load torque of the motor 5 and extends the life of the motor 5.

[0039] The airflow structure of the heat dissipation unit 13 is equipped with an adjustable-angle air outlet, and the air outlet outlet is directed towards the heat-concentrating area of ​​the bulb 1.

[0040] An adjustable air vent is hinged at the end of the air guide, allowing the vent to rotate ±15° around its axis (the vent itself has a fixed angle; this angle is determined by testing different wattage bulbs to find the optimal airflow angle for the bulbs to reach the appropriate temperature, and the vent is then manufactured with the appropriate sheet metal angle). The angle is fixed by tightening the side wall screws. This design accommodates the different hotspot positions of bulbs with varying wattages, preventing airflow waste.

[0041] The output gear is connected to the bulb mounting unit by an axially extending bracket, so that the mounting position of the bulb 1 is offset from the gear meshing plane.

[0042] The output gear fixing bracket 2 extends downward to form a cantilever with a length greater than or equal to the radius of the bulb 1; the bulb 1 is installed at the end of the cantilever, so that the center line of the bulb 1 is offset from the gear meshing plane.

[0043] Example 2 Reference Figures 1-4 An embodiment of this utility model provides a heat dissipation system with stepless rotary power supply, comprising: The rotary transmission unit includes a motor 5, a drive gear 4 driven by the motor 5, a driven gear 3 meshing with the drive gear 4, and an output gear meshing with the driven gear 3. A bulb mounting unit is used to fix bulb 1 and connect it to the output gear, so that bulb 1 rotates synchronously with the output gear; The slip ring power supply unit includes a conductive slip ring 10. Its rotor part is connected to the bulb 1 terminal via a power line and is fixed to the output gear related components for follow-up. Its stator part is connected to an external power source via a power line and is fixed to the stationary part of the system. The heat dissipation unit 13 includes a blower and an air guide structure for delivering cooling airflow to the surface of the bulb 1.

[0044] In this embodiment, the output shaft of the motor 5 in the rotary transmission unit is equipped with a drive gear 4, which meshes with the driven gear 3, and the driven gear 3 then meshes with the output gear.

[0045] In the bulb mounting unit, bulb 1 is embedded in bulb mounting bracket 14.

[0046] In the slip ring power supply unit, the rotor power line of the conductive slip ring 10 is connected to the bulb 1 terminal and rotates with the output gear, while the stator power line is connected to an external power source.

[0047] In the heat dissipation unit, the blower directs airflow to the surface of the bulb through the air duct.

[0048] The bulb 1 rotates continuously 360 degrees via a gear transmission chain, and the slip ring power supply prevents the wires from breaking; forced air cooling combined with rotational heat dissipation eliminates local overheating / overcooling and reduces the risk of explosion.

[0049] Optionally, the rotor portion of the conductive slip ring 10 of the slip ring power supply unit is rigidly connected to the bulb holder 14 and the driven gear 3 to achieve synchronous rotation.

[0050] The rotor flange of the conductive slip ring 10 is bolted to the driven gear 3. The driven gear 3 is also bolted to the bulb mounting bracket 14. When the drive gear 4 is driven by the motor 5, it drives the slip ring rotor-bulb 1 to rotate as a whole. By eliminating intermediate connecting parts, the structure is more compact and suitable for miniaturized lighting fixtures.

[0051] The stator of the conductive slip ring 10 is fixed to the flat sheet metal 15, which is connected to the system stationary frame.

[0052] Modular slip ring stator installation: The slip ring stator housing is snapped into the rectangular opening of the flat sheet metal 15; the flat sheet metal 15 is fixed to the system base by an L-shaped bracket. The flat sheet metal 15 serves as a universal installation platform, compatible with slip rings of different sizes.

[0053] The bulb mounting unit includes a bulb holder 14, in which the bulb 1 is embedded, and the air outlet of the heat dissipation unit 13 points towards the surface of the bulb 1.

[0054] The bulb 1 is inserted into the ceramic slot of the bulb holder 14; the annular air duct of the heat dissipation unit 13 surrounds the lower half of the bulb 1, and the airflow is directed towards the electrode area of ​​the bulb ball at a 30° angle. The directional airflow covers the highest temperature area, improving the heat dissipation efficiency by 35%.

[0055] The airflow structure of the heat dissipation unit 13 is equipped with an adjustable-angle air outlet, and the air outlet outlet is directed towards the heat-concentrating area of ​​the bulb 1.

[0056] The air vent and air guide are hinged at the end of an adjustable air vent, which can rotate ±15° around its axis; the angle is fixed by tightening the side wall screws. This accommodates the different hotspot positions of bulbs with different wattages, avoiding airflow waste.

[0057] The output gear is connected to the bulb mounting unit by an axially extending bracket, so that the mounting position of the bulb 1 is offset from the gear meshing plane.

[0058] The output gear fixing bracket 2 extends downward to form a cantilever; the bulb 1 is installed at the end of the cantilever, so that the center line of the bulb 1 is offset from the gear meshing plane. This leaves an unobstructed airflow path for the air vent, preventing the airflow from being blocked by the gear set.

[0059] Explanation: When the system starts, motor 5 drives the drive gear 4 to rotate, transmitting torque to the driven gear 3 through meshing, ultimately driving the output gear or the drive gear integrated with the bulb holder 14 in embodiment 2 to rotate. Since the bulb 1 is rigidly connected to the output gear through the groove press-fit structure of the output gear holder 2 or the slot of the bulb holder 14, the bulb 1 rotates continuously 360 degrees synchronously with the gear system. During this process, the core function of the conductive slip ring 10 is realized: its rotor part is directly connected to the bulb 1 terminal through a power line and rotates synchronously with the bulb 1; while the stator part is fixed to a stationary component, the light-blocking bent sheet metal 12 or the flat sheet metal 15, and connected to an external power source through wires, forming a lossless current transmission channel at the rotation-stationary interface, completely eliminating the risk of breakage caused by repeated bending of traditional power lines.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A heat dissipation system with stepless rotary power supply, characterized in that, include: The rotary transmission unit includes a motor (5), a drive gear (4) driven by the motor (5), a driven gear (3) meshing with the drive gear (4), and an output gear meshing with the driven gear (3). A bulb mounting unit is used to fix the bulb (1) and connect it to the output gear so that the bulb (1) rotates synchronously with the output gear; The slip ring power supply unit includes a conductive slip ring (10), whose rotor part is connected to the bulb (1) terminal via a power line and fixed to the output gear related components for follow-up, and whose stator part is connected to an external power source via a power line and fixed to the stationary parts of the system. The heat dissipation unit (13) includes a blower and an air guide structure for delivering cooling airflow to the bulb and front lead wire inside the bulb (1).

2. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The bulb mounting unit includes an output gear fixing bracket (2) and a bulb pressure ring (7). The output gear fixing bracket (2) is provided with a circular groove for accommodating the bulb (1). The bulb pressure ring (7) is fixed above the groove by screws to press the bulb (1) tightly.

3. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The rotor of the slip ring power supply unit is fixed to the slip ring fixing member (9), which is connected to the bulb pressure ring (7) through multiple cylinders (8) to realize the synchronous rotation of the rotor and the bulb (1).

4. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The stator of the slip ring power supply unit is mounted on the light-blocking bending sheet metal (12) by the slip ring stator fixing part (11), and the light-blocking bending sheet metal (12) and the motor fixing sheet metal (6) are coaxially fixed to the output gear fixing bracket (2).

5. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, In the rotary transmission unit, the motor (5) is mounted on the output gear fixing bracket (2) via the motor fixing sheet metal (6), the drive gear (4) is mounted on the output shaft of the motor (5), and the driven gear (3) is mounted on the output gear fixing bracket (2) and meshes with the drive gear (4) and the output gear simultaneously.

6. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The rotor portion of the conductive slip ring (10) of the slip ring power supply unit is rigidly connected to the bulb holder (14) and the driven gear (3) to achieve synchronous rotation.

7. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The stator of the conductive slip ring (10) is fixed to a flat sheet metal (15), which is connected to the system's stationary frame.

8. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The bulb mounting unit includes a bulb mounting bracket (14), in which the bulb (1) is embedded and secured by a pressure plate screw, and the air outlet of the heat dissipation unit (13) points to the surface of the bulb (1).

9. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The heat dissipation unit (13) has an adjustable air outlet in its air guide structure, with the air outlet outlet facing the heat concentration area of ​​the bulb (1).

10. The heat dissipation system with stepless rotary power supply according to claim 1, characterized in that, The output gear is connected to the bulb mounting unit by an axially extending bracket, so that the mounting position of the bulb (1) is offset from the gear meshing plane.

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