Lamp holder heat dissipation device

Abstract

The utility model relates to a lamp holder heat dissipation device which comprises a plurality of heat conduction plates connected with a lamp holder bottom plate. A plurality of high heat-conducting fins are arranged between the heat-conducting plate and the lamp holder bottom plate; the face, away from the lamp holder bottom plate, of the heat conduction plate is connected with a plurality of heat dissipation modules. A cooling fan is arranged on the side, away from the lamp holder bottom plate, of the cooling module. Air deflectors abutting against the inner wall of the lamp holder bottom shell are arranged on the two sides of the cooling fan. The heat conducting plates which are connected with the base plate of the lamp holder and are of a split structure are adopted, the cost control effect is remarkable, and it is ensured that the heat conducting plates are tightly attached to all heating points at the bottom of the lamp holder. The heat dissipation module is designed into a plurality of split structures, the size is reduced, and the cost is reduced. The shrunk heat dissipation module can be better attached to the heat conduction plate. The air deflector abuts against the inner wall of the lamp holder bottom shell, and the key air gathering effect is achieved. The air deflector abuts against the inner wall of the lamp holder bottom shell, reliable support is provided for the air suction type cooling fan, and the integrity of the lamp bottom structure is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lamps and lanterns especially, a lamp cap heat abstractor. BACKGROUND

[0002] In the professional technical field involved by searchlight and large size stage lamp, the key element of lamp size, especially the size change of lamp, can produce a series of problems.

[0003] Take the circular searchlight as a typical example which is common in the industry and is widely used to make in-depth analysis. Generally, the diameter of this kind of searchlight is mostly in the relatively conventional interval range of 20-40 centimeters. Under this specification, the heat sink located at the bottom of the lamp cap can be more convenient to adapt to the integrated heat dissipation module design. This integrated heat dissipation module is enough to ensure that the heat generated by the light-emitting lamp cap in the working process can be dissipated in time and effectively, so as to guarantee the stable operation of the lamp and prolong its service life.

[0004] However, once the size of the lamp is increased to 60-80 centimeters or even larger specifications, with the expansion of the overall size of the lamp, the size of the heat dissipation module also has to be increased to meet the heat dissipation requirements. The large size of the integrated heat dissipation module is difficult to manufacture; on the other hand, the cost also increases accordingly, whether it is the procurement cost of raw materials or the processing cost increased due to complex process, which makes the total cost of the lamp increase significantly.

[0005] More importantly, the size of the heat dissipation module after the increase will be affected when assembling with the bottom of the lamp cap, and some gaps may be produced, and the existence of these gaps undoubtedly becomes an obstacle to heat conduction, affecting the heat dissipation performance of the whole lamp. INVENTION CONTENTS

[0006] In order to solve the above problems of the prior art, the utility model provides a lamp cap heat dissipation device.

[0007] In order to achieve the above purpose, the utility model adopts the main technical scheme:

[0008] A lamp cap heat dissipation device, comprising a plurality of heat conduction plates connected with the lamp cap bottom plate; a plurality of high-thermal-conductivity sheets are arranged between the heat conduction plates and the lamp cap bottom plate; a plurality of heat dissipation modules are connected to one side of the heat conduction plates away from the lamp cap bottom plate; and a heat dissipation fan is arranged on the side of the heat dissipation module away from the lamp cap bottom plate.

[0009] Further, the heat conduction plate is an aluminum alloy plate, and the high-thermal-conductivity sheet is a heat-conducting copper sheet.

[0010] Further, the heat-conducting plate is provided with a limiting groove for mounting a high-heat-conducting sheet; the top surface of the high-heat-conducting sheet is flush with the top surface of the heat-conducting plate when the high-heat-conducting sheet is mounted in the limiting groove.

[0011] Further, the heat-dissipating module is formed by a plurality of heat-dissipating fins arranged at intervals; the heat-dissipating fins of the heat-dissipating module on the heat-conducting plate are arranged in the same direction.

[0012] Further, the heat-dissipating module is formed by a plurality of heat-dissipating fins arranged at intervals; the heat-dissipating fins of the heat-dissipating module on the heat-conducting plate are arranged in the same direction.

[0013] Further, the connecting plate and the lamp holder bottom plate are provided with a support column for fixing the connecting plate.

[0014] Further, the lamp holder bottom plate is fixedly connected with a lamp holder bottom shell; the lamp holder bottom shell is formed with a containing space for mounting the heat-dissipating module; the lamp holder bottom shell is provided with a heat-dissipating fan air inlet opposite to the heat-dissipating fan; and the lamp holder bottom shell is circumferentially provided with a heat-dissipating module air outlet opposite to the heat-dissipating module.

[0015] Further, the connecting plate is fixedly connected with the lamp holder bottom shell through the connecting column.

[0016] Further, the heat-dissipating fan is provided with a wind guide plate abutting against the inner wall of the lamp holder bottom shell on both sides.

[0017] Further, a plurality of heat-dissipating fans are arranged along the arrangement direction of the heat-conducting plate.

[0018] The utility model discloses a heat-dissipating module and a lamp holder bottom plate connected with the heat-dissipating module, which has remarkable effects in cost control. The heat-conducting plate can be flexibly adjusted according to the distribution characteristics of the core heating area at the bottom of the lamp holder, ensuring close contact with each heating point at the bottom of the lamp holder. The heat-dissipating module is designed as a plurality of split structures with reduced size and cost, which has obvious advantages in cost reduction. The reduced heat-dissipating module can be better combined with the heat-conducting plate. The improved degree of combination means that the thermal resistance is smaller during the heat transfer from the heat-conducting plate to the heat-dissipating module, and the heat transfer is smoother, avoiding heat retention caused by poor combination, ensuring the continuity and efficiency of the heat dissipation process, and further ensuring the stable operation of the lamp. The wind guide plate abutting against the inner wall of the lamp holder bottom shell plays a key role in wind gathering. The wind guide plate abutting against the inner wall of the lamp holder bottom shell provides reliable support for the suction-type heat-dissipating fan, enhancing the integrity of the lamp bottom structure. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope, for those skilled in the art, without creative labor, other related drawings can also be obtained from these drawings.

[0020] Figure 1 is the structure explosion Figure 1 of the present application

[0021] Figure 2 is the structure explosion Figure 2 of the present application

[0022] Mark explanation:

[0023] 10, lamp holder bottom plate; 20, heat conduction plate; 21, limiting groove; 30, high thermal conductivity sheet; 40, heat dissipation module; 50, heat dissipation fan; 51, connecting plate; 52, connecting column; 53, support column; 54, air deflector; 60, lamp holder bottom shell; 61, heat dissipation fan air inlet; 62, heat dissipation module air outlet. Specific implementation

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0025] In the description of the present application, it should be pointed out that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it is explained that, unless otherwise specified and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0027] Embodiment, please refer to Figures 1-2 As shown in the figure:

[0028] A lamp cap heat dissipation device, comprising a plurality of heat-conducting plates 20 connected with the lamp cap bottom plate 10;Adopt a plurality of split structure heat-conducting plates 20 connected with the lamp cap bottom plate 10, which is remarkable in cost control. Compared with the traditional integrated design, the split structure does not need to use large and expensive raw materials for integral machining, which reduces the raw material procurement cost. Moreover, in the manufacturing process, due to the small size of the single component, the processing difficulty is greatly reduced, which reduces the dependence on special large-scale processing equipment and high labor cost, thereby effectively reducing the production cost.

[0029] In terms of heat dissipation performance, the heat-conducting plate 20 can flexibly adjust the layout according to the distribution characteristics of the core heating area at the bottom of the lamp cap, and ensure close contact with each heating point at the bottom of the lamp cap. This close contact avoids the loss of heat at the initial stage of transmission, so that the heat can be more efficiently conducted from the bottom of the lamp cap to the heat-conducting plate 20, laying a solid foundation for the subsequent heat dissipation process.

[0030] In an embodiment, the heat-conducting plate 20 is provided with a plurality of high-thermal-conductivity sheets 30 between the lamp cap bottom plate 10;The high-thermal-conductivity sheet 30 is placed between the heat-conducting plate 20 and the lamp cap bottom plate 10, and its most prominent advantage is the super strong heat conduction performance. Because its thermal conductivity is higher than that of the heat-conducting plate 20, it can greatly accelerate the rate of heat transfer from the lamp cap bottom plate 10 to the heat-conducting plate 20;Generally, the cost of high-thermal-conductivity materials is higher, and through the combination of the two materials, the heat dissipation effect can be improved and the cost can be reasonably controlled.

[0031] In an embodiment, the heat-conducting plate 20 is an aluminum alloy plate; and the high-heat-conducting sheet 30 is a heat-conducting copper sheet. Aluminum alloy has many excellent properties as the material of the heat-conducting plate 20. First, the density of aluminum alloy is relatively low, which makes the entire heat-conducting plate 20 lighter under the premise of ensuring a certain strength. For lamps, especially large-sized stage lamps and searchlights, the lighter heat-conducting plate 20 helps to reduce the overall weight of the lamp, facilitates the installation, transportation and debugging of the lamp, reduces the load requirement on the supporting structure, and improves the convenience and flexibility of the lamp use. Aluminum alloy has good processability and is easy to be made into various shapes through conventional processing technologies such as stamping and cutting to adapt to the profile and heat distribution of the lamp base bottom plate 10. This good plasticity can ensure that the heat-conducting plate 20 is accurately fitted with the lamp base bottom, maximally improves the heat conduction efficiency, and guarantees the efficient operation of the initial link of the lamp heat dissipation process. From the cost point of view, aluminum alloy is a widely used and relatively controllable metal material in terms of raw material cost. Compared with some rare or high-cost heat-conducting materials, the selection of aluminum alloy can meet the basic heat dissipation demand while maintaining a low production cost, so that the lamp has better price competitiveness in the market. Copper has a very high heat conductivity, far exceeding that of aluminum alloy. The high-heat-conducting sheet 30 made of copper is placed between the heat-conducting plate 20 and the lamp base bottom plate 10, which can fully exert its excellent heat-conducting performance and further strengthen the rapid transfer of heat from the lamp base bottom plate 10 to the heat-conducting plate 20. Even under the working condition that a large amount of heat is generated in the lamp head at a moment, the heat-conducting copper sheet can quickly absorb and guide the heat to the heat-conducting plate 20, effectively preventing local overheating of the lamp head and guaranteeing the stability and reliability of the core components of the lamp. The chemical stability of copper material is good, and it is not easy to chemically react with substances in the surrounding environment during long-term operation of the lamp, avoiding the decline of heat-conducting performance due to corrosion, oxidation and other problems. This property ensures that the high-heat-conducting sheet 30 can continuously and stably play its role of high-efficiency heat conduction throughout the service life of the lamp, providing reliable protection for the heat dissipation of the lamp and reducing the risk of heat dissipation failure caused by material aging.

[0032] In an embodiment, the heat-conducting plate 20 is connected with a plurality of heat dissipation modules 40 away from the lamp base bottom plate 10; the heat dissipation modules 40 are designed as multiple split structures and have a reduced volume, and the cost reduction advantage is obvious. Traditional large-sized integrated heat dissipation modules 40 have a dramatic increase in processing complexity and uncontrolled cost as the size of the lamp increases. However, the use of split small-volume heat dissipation modules 40 simplifies the manufacturing process and reduces material loss, so that the procurement and processing costs can be effectively controlled. In terms of heat dissipation function, the reduced heat dissipation modules 40 can be more optimally fitted with the heat-conducting plate 20. The improvement of the fitting degree means that the thermal resistance is smaller and the heat transfer is smoother in the process of heat transfer from the heat-conducting plate 20 to the heat dissipation modules 40, avoiding heat retention caused by poor fitting, guaranteeing the continuity and efficiency of the heat dissipation process, and thus ensuring the stable operation of the lamp.

[0033] In an embodiment, the heat dissipation module 40 is provided with a heat dissipation fan 50 on the side away from the lamp holder bottom plate 10. The heat dissipation fan 50 is arranged on the side of the heat dissipation module 40 away from the lamp holder bottom plate 10, as the last link of the heat dissipation process, playing a key role in forcibly promoting heat dissipation. It accelerates the air flow around the heat dissipation module 40 by continuous operation, forming forced convection.

[0034] In an embodiment, the heat conduction plate 20 is provided with a limiting groove 21 for mounting the high-thermal-conductivity sheet 30; the top surface of the high-thermal-conductivity sheet 30 is flush with the top surface of the heat conduction plate 20 when the high-thermal-conductivity sheet 30 is mounted in the limiting groove 21. The limiting groove 21 provides precise positioning for the high-thermal-conductivity sheet 30, ensuring that it is firmly fixed in the predetermined position, so that the high-thermal-conductivity sheet 30 can always maintain the best contact state with the lamp holder bottom plate 10 and the heat conduction plate 20, regardless of the working condition of the lamp, and ensure the continuity and efficiency of heat conduction. From the perspective of processing technology, the presence of the limiting groove 21 helps to simplify the assembly process. The flush design ensures the uniformity of heat transfer. When heat is transferred from the lamp holder bottom plate 10 to the high-thermal-conductivity sheet 30, if the top surface of the high-thermal-conductivity sheet 30 is higher or lower than the top surface of the heat conduction plate 20, it will cause the heat to gather at the interface or unevenly flow, affecting the subsequent heat diffusion to the heat dissipation module 40. The flush installation enables seamless connection between the high-thermal-conductivity sheet 30 and the heat conduction plate 20, forming a flat and continuous heat conduction plane, allowing heat to be evenly and smoothly transferred from the high-thermal-conductivity sheet 30 to the heat conduction plate 20 and then to the heat dissipation module 40, optimizing the heat transfer efficiency of the entire heat dissipation link.

[0035] In an embodiment, the heat dissipation module 40 is formed by a plurality of heat dissipation fins arranged at intervals; the heat dissipation fins of the heat dissipation module 40 on the heat conduction plate 20 are arranged in the same direction. The structure of the heat dissipation fins arranged at intervals greatly increases the heat dissipation surface area, effectively improving the heat dissipation efficiency. The heat dissipation fins arranged at intervals also optimize the air flow characteristics. The heat dissipation fins arranged in the same direction help to form a unified heat flow direction. After the heat is transferred from the heat conduction plate 20 to the heat dissipation module 40, the fins arranged in the same direction can guide the heat to diffuse uniformly in the same direction, avoiding the situation where the heat interferes with and cancels each other out inside the heat dissipation module 40. This allows the heat to be transmitted in an orderly manner in the gaps between the heat dissipation fins;

[0036] In an embodiment, the bottom of the heat dissipation module 40 is provided with a connecting plate 51; the heat dissipation fan 50 is installed on the connecting plate 51; the connecting plate 51 provides a solid support foundation for the heat dissipation module 40. Since the heat dissipation module 40 is usually composed of a plurality of heat dissipation fins, the structure is relatively loose, and during the operation of the lamp, especially under the action of external forces such as vibration and transportation, it is easy to deform or displace. The connecting plate 51, which is equivalent to a skeleton, tightly connects the heat dissipation module 40 into a whole, enhances its mechanical strength, ensures that the heat dissipation module 40 can be stably fixed on the heat conduction plate 20, maintains good thermal conduction contact with the heat conduction plate 20, and guarantees the continuity and reliability of heat transfer.

[0037] In an embodiment, the connecting plate 51 and the lamp head bottom plate 10 are provided with a support column 53 for fixing the connecting plate 51. The presence of the support column 53 further enhances the connection rigidity between the connecting plate 51 and the entire heat dissipation module 40 and the lamp head bottom plate 10.

[0038] In an embodiment, the bottom of the lamp head bottom plate 10 is fixedly connected with a lamp head bottom shell 60; the lamp head bottom shell 60 forms a containing space for installing the heat dissipation module 40; the lamp head bottom shell 60 is provided with a heat dissipation fan air inlet 61 opposite to the heat dissipation fan 50; and the lamp head bottom shell 60 is circumferentially provided with a heat dissipation module air outlet 62 opposite to the heat dissipation module 40. The lamp head bottom shell is tightly fixed with the lamp head bottom plate 10, providing an additional protection for the bottom of the entire lamp. On the one hand, it enhances the integrity of the lamp head structure, and when the lamp is subjected to external collision, extrusion and other accidents, it can effectively disperse the impact force, protect the fragile heat dissipation module 40, heat conduction plate 20 and core components of the lamp head from damage, greatly improve the physical impact resistance of the lamp, and prolong the service life of the lamp.

[0039] In an embodiment, the connecting plate 51 is fixedly connected with the lamp head bottom shell 60 through a connecting column 52. The connecting column 52, as a fixed connecting piece between the connecting plate 51 and the lamp head bottom shell 60, greatly enhances the connection strength of the two.

[0040] In one embodiment, the cooling fan 50 has air guide plates 54 on both sides that abut against the inner wall of the lamp holder bottom shell 60. The air guide plates 54 abut against the inner wall of the lamp holder bottom shell 60 play a crucial role in concentrating airflow. The fan generates suction; without the air guide plates 54, the flow of outside air into the lamp would be chaotic, with only a small portion of the air actually being drawn in and directed to the heat dissipation module 40, significantly reducing heat dissipation efficiency. The air guide plates 54, however, can orderly guide a large area of ​​surrounding cool air to the vicinity of the fan, ensuring that the fan draws in sufficient air and smoothly blows it towards the heat dissipation module 40. The air guide plates 54 abut against the inner wall of the lamp holder bottom shell 60, providing reliable support for the suction-type cooling fan 50. During lamp operation, external forces such as vibration and shaking are unavoidable. Under the suction force, the fan may shift laterally, which can disrupt the precise alignment between the fan and the heat dissipation module 40, affecting the cooling effect. Meanwhile, the tight fit between the air guide plate 54 and the lamp head base shell 60 enhances the overall integrity of the lamp's bottom structure. When the lamp is subjected to external impacts, such as collisions during transport or unexpected vibrations during stage performances, the air guide plate 54 can help the lamp head base shell 60 distribute the force, protect the fragile internal heat dissipation components and fan from damage, improve the lamp's impact resistance, and ensure the lamp operates normally in complex and changing environments.

[0041] In one embodiment, multiple cooling fans 50 are arranged along the arrangement direction of the heat-conducting plates 20. For example... Figure 1 The heat-conducting plates 20 are arranged approximately through the paper, and the cooling fans 50 are arranged along this direction, which can ensure that there is high-speed airflow in each heat dissipation module 40 when the cooling fans 50 are working.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lamp cap heat sink, characterized by: The application relates to a lamp cap heat dissipation device which comprises a plurality of heat conduction plates (20) connected with a lamp cap bottom plate (10), a plurality of high-heat-conduction sheets (30) arranged between the heat conduction plates (20) and the lamp cap bottom plate (10), a plurality of heat dissipation modules (40) connected with the heat conduction plates (20) away from the lamp cap bottom plate (10), a heat dissipation fan (50) arranged on the side of the heat dissipation modules (40) away from the lamp cap bottom plate (10), and guide plates (54) arranged on the two sides of the heat dissipation fan (50) and abutting against the inner wall of a lamp cap bottom shell (60).

2. A lamp cap heat sink device according to claim 1, wherein: The heat conduction plates (20) are aluminum alloy plates, and the high-heat-conduction sheets (30) are heat conduction copper sheets.

3. A lamp cap heat sink device according to claim 2, wherein: The heat conduction plates (20) are provided with limiting grooves (21) for mounting the high-heat-conduction sheets (30), and the top surface of the high-heat-conduction sheets (30) is flush with the top surface of the heat conduction plates (20) when the high-heat-conduction sheets (30) are mounted in the limiting grooves (21).

4. A lamp cap heat dissipating device according to claim 1, characterized in that: The heat dissipation modules (40) are formed by a plurality of heat dissipation fins arranged at intervals, and the heat dissipation fins of the heat dissipation modules (40) on the heat conduction plates (20) are arranged in the same direction.

5. A lamp cap heat sink device according to claim 1, wherein: The heat dissipation modules (40) are provided with connecting plates (51) at the bottom, and the heat dissipation fan (50) is mounted on the connecting plates (51).

6. A lamp cap heat sink device according to claim 5, wherein: Support columns (53) for fixing the connecting plates (51) are arranged between the connecting plates (51) and the lamp cap bottom plate (10).

7. A lamp cap heat sink device according to claim 5, wherein: The lamp cap bottom plate (10) is fixedly connected with a lamp cap bottom shell (60) at the bottom, the lamp cap bottom shell (60) is formed with a containing space for mounting the heat dissipation modules (40), the lamp cap bottom shell (60) is provided with a heat dissipation fan air inlet (61) arranged opposite to the heat dissipation fan (50), and the lamp cap bottom shell (60) is circumferentially provided with heat dissipation module air outlets (62) arranged opposite to the heat dissipation modules (40).

8. A lamp cap heat sink device according to claim 7, wherein: The connecting plates (51) are fixedly connected with the lamp cap bottom shell (60) through connecting columns (52).

9. A lamp cap heat dissipating device as defined in claim 1, wherein: A plurality of heat dissipation fans (50) are arranged along the arrangement direction of the heat conduction plates (20).

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