Radiator and lamp

Abstract

The utility model relates to a radiator and a lamp, and relates to the field of radiators. The radiator is applied to the lamp and comprises a body part, a plurality of radiating fins, a plurality of second positioning parts and a plurality of second connecting parts. The body part is provided with a geometric center, the heat dissipation fins are radially distributed on the periphery of the body part at equal intervals with the geometric center of the body part as the center, and the central angle corresponding to every two adjacent heat dissipation fins with the geometric center as the circle center is alpha, the plurality of second positioning parts and the plurality of second connecting parts are arranged on at least two of the plurality of radiating fins and alternately surround the periphery of the body part, the central angle corresponding to the second positioning parts and the second connecting parts which are adjacent to each other by taking the geometric center as the circle center is beta, and beta is an integral multiple of alpha. According to the radiator, the radiating effect can be enhanced by arranging the second positioning parts, the second connecting parts and the angles between the second positioning parts and the second connecting parts, meanwhile, rapid positioning and mounting can be achieved, the assembling time is saved, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of radiators, and in particular to a radiator and a lamp. Background Art

[0002] During use, lamps generate high heat in a small volume, so radiators are often installed on lamps to conduct heat energy to the air through profile contact to dissipate heat, avoid heat accumulation that affects the performance of the lamp, and ensure the service life of the lamp. However, most radiators only include a center ring plate and cooling fins outside the ring plate. The connection between the radiator and the lamp is often connected through the holes on the center ring plate. However, opening holes in the center ring plate reduces the heat dissipation area, which is not conducive to heat dissipation. There is also a risk of low bonding strength and unreliable installation. Utility Model Content

[0003] In view of this, an embodiment of the present application provides a radiator that can be quickly positioned and installed to solve the above-mentioned technical problems.

[0004] In the first aspect, the embodiment of the present application provides a heat sink, which is applied to a lamp, and the lamp includes a base and a lamp board, and the base has a first positioning portion and a first connecting portion. The heat sink includes a main body, a plurality of heat dissipation fins, a plurality of second positioning portions, and a plurality of second connecting portions. The main body has a geometric center, and a plurality of heat dissipation fins are radially and evenly distributed on the periphery of the main body with the geometric center of the main body as the center, and the center angle corresponding to the geometric center of two adjacent heat dissipation fins is α. The plurality of second positioning portions are used to cooperate with the first positioning portion for positioning, and the plurality of second positioning portions are respectively arranged on at least two of the plurality of heat dissipation fins. The plurality of second connecting portions are used to be fixedly connected with the first connecting portion, and the plurality of second connecting portions are respectively arranged on at least two of the plurality of heat dissipation fins. The plurality of second positioning portions and the plurality of second connecting portions are alternately arranged around the periphery of the main body, and the center angle corresponding to the geometric center of adjacent second positioning portions and second connecting portions is β, and β is an integer multiple of α.

[0005] In some embodiments, the second positioning portion is provided with a mating through hole for plugging and mating with the first positioning portion.

[0006] In some embodiments, an inner wall of the mating through hole is provided with an internal thread.

[0007] In some embodiments, the second positioning portion is provided with a notch, which penetrates the peripheral wall of the second positioning portion along the radial direction of the matching through hole and is connected with the matching through hole, so that the second positioning portion has an open ring structure.

[0008] In some embodiments, the second positioning portion and the second connecting portion have the same structure, and the second positioning portion and the second connecting portion are arranged on the same circumference with the geometric center as the center.

[0009] In some embodiments, the lamp further comprises an adapter mounting member for mounting components. The sum of the number of the second positioning portions and the second connecting portions is greater than the sum of the number of the first positioning portions and the first connecting portions, and at least one of the second positioning portions and the second connecting portions is further used to be connected to the adapter mounting member.

[0010] In some embodiments, the lamp panel is provided with a fixing portion, and the heat sink further includes a plurality of third connecting portions for being fixedly connected to the fixing portion, and the plurality of third connecting portions are distributed on the periphery of the main body with the geometric center of the main body as the center.

[0011] In some embodiments, the third connection part is arranged at the connection between the heat sink fin and the main body and is located between two adjacent heat sink fins. A plurality of third connection parts are evenly spaced and distributed around the outer periphery of the main body, and the third connection part is provided with a connection through hole for connecting with the fixing part.

[0012] In some embodiments, two adjacent heat sink fins have a first surface and a second surface opposite to each other, and the main body has a third surface. The third surface is connected between the first surface and the second surface, and the connecting through hole passes through the first surface, the second surface and the third surface at the same time. Or,

[0013] The connecting through hole is defined by the surfaces of two adjacent heat dissipation fins and the concave structure on the surface of the main body, and the inner wall of the connecting through hole is provided with an internal thread.

[0014] In a second aspect, the embodiment of the present application further provides a lamp, comprising a base, the heat sink described above, and a lamp board. The base has a first positioning portion and a first connecting portion, the first positioning portion and at least one of the plurality of second positioning portions are matched for positioning, the first connecting portion and at least one of the plurality of second connecting portions are fixedly connected, and the lamp board is connected to the heat sink.

[0015] In some embodiments, the light board is located between the base and the heat sink and is attached to the heat sink. The lamp also includes a transfer mounting member for mounting components, the transfer mounting member is disposed on a side of the heat sink away from the light board and is connected to at least one of the plurality of second positioning portions or the plurality of second connecting portions.

[0016] Compared with the prior art, the heat sink provided in the embodiment of the present application includes a main body, a plurality of heat dissipation fins, a plurality of second positioning parts and a plurality of second connecting parts. A plurality of heat dissipation fins are arranged on the periphery of the main body, and the plurality of heat dissipation fins are radially distributed with equal spacing around the geometric center of the main body, and the central angle corresponding to the geometric center of two adjacent heat dissipation fins is α, which can avoid the problem of unsatisfactory overall heat dissipation effect and serious material waste caused by unreasonable arrangement of heat dissipation fins, thereby ensuring heat dissipation and ventilation in each area of ​​the heat sink to enhance the heat dissipation effect. In addition, a plurality of second positioning parts and a plurality of second connecting parts are arranged, and the plurality of second positioning parts and the plurality of second connecting parts are respectively arranged on at least two heat dissipation fins among the plurality of heat dissipation fins. On the one hand, the heat sink can be fastened to other mounting parts without damaging the heat sink, and the heat dissipation area can be fully utilized as much as possible to improve the heat dissipation efficiency. On the other hand, the second positioning part and the second connecting part have good connection firmness with other mounting parts, which can reduce the risk of the heat sink and the mounting part falling off during use of the lamp, thereby improving the reliability of installation. Further, the second positioning part and the second connecting part can both play a certain positioning role. Furthermore, multiple second positioning portions and multiple second connecting portions are alternately arranged around the outer circumference of the main body portion, and the central angle corresponding to the geometric center of adjacent second positioning portions and second connecting portions is β. During the installation process, only one second positioning portion and one second connecting portion need to be aligned to achieve rapid positioning of the radiator and other mounting parts, which can reduce the assembly steps, thereby improving the assembly speed and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of a radiator provided in one embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the structure of a lamp provided in one embodiment of the present application.

[0020] Figure 3 yes Figure 2 Schematic diagram of the structure of the lamp shown.

[0021] Figure 4 yes Figure 3 An orthographic diagram of the base of the lamp shown.

[0022] Figure 5This is another structural schematic diagram of a lamp provided in an embodiment of the present application.

[0023] Figure 6 yes Figure 5 The three-dimensional cross-sectional diagram of the lamp shown along line II.

[0024] Figure 7 yes Figure 1 Orthographic schematic diagram of the heat sink shown.

[0025] Figure 8 yes Figure 7 A partial enlarged schematic diagram of area A of the heat sink is shown. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that when an element / component is referred to as being "fixed to" another element / component, it may be directly on the other element / component or there may be an intermediate element / component. When an element / component is considered to be "connected" to another element / component, it may be directly connected to the other element / component or there may be an intermediate element / component at the same time; at the same time, when an element / component is considered to be "connected" to another element / component, it may be integrally formed or assembled with the other element / component. When an element / component is considered to be "set on" another element / component, it may be directly set on the other element / component or there may be an intermediate element / component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] See also Figure 1, the embodiment of the present application provides a heat sink 100. The heat sink 100 is a device for absorbing, conducting and dissipating the heat generated by electronic devices, ensuring that the temperature of the electronic devices is within a suitable operating temperature range. Electronic devices include light sources, resistors, chips, circuit boards, etc. Therefore, it can be understood that the heat sink provided in the embodiment of the present application can be applied not only to the field of lamps but also to the fields of computers, electronic equipment, medical equipment, etc. In this embodiment, the heat sink 100 is applied to the lamp 200 ( Figure 2 ) is used to dissipate the heat generated by the lamp 200 to prevent the lamp 200 from being damaged by high temperature.

[0030] See also Figures 2 to 4 The embodiment of the present application also provides a lamp 200 with a heat sink 100, the lamp 200 includes a base 10, a lamp board 20 and the heat sink 100, wherein the lamp board 20 is connected to the heat sink 100 and fixed to the base 10 as a whole. The base 10 serves as a mounting part for the heat sink 100, the lamp board 20 or other parts (not shown in the figure), and is used to support the weight of the lamp 200 to ensure the stability of the lamp 200 during use. The base 10 includes at least one first positioning portion 11 and at least one first connecting portion 12, the first positioning portion 11 and the first connecting portion 12 are basically arranged on the same circumference, and the first positioning portion 11 and the first connecting portion 12 are used to be detachably positioned and matched with the heat sink 100 to achieve a fixed effect, thereby realizing positioning and anti-slip. As an example, the base 10 also includes a substrate 13, the first positioning portion 11 and the first connecting portion 12 are both arranged on the surface of the substrate 13, the first positioning portion 11 is a positioning column, and the first connecting portion 12 is a screw column. The positioning column and the screw column both protrude relative to the substrate 13 and are plugged into the connecting parts corresponding to the heat sink 100. The connecting parts can be connecting holes or connecting grooves. Through the positioning and matching of the positioning column, the screw column and the connecting hole or the connecting groove, the connection process between the various components of the lamp 200 is simple, the assembly speed is fast, and the production efficiency and product yield can be improved.

[0031] It should be noted that, a first positioning portion 11 and a first connecting portion 12 or a plurality of first positioning portions 11 and a plurality of first connecting portions 12 may be provided on the base 10. Different numbers of first positioning portions 11 and first connecting portions 12 are provided in order to improve the connection tightness between the radiator 100 and the base 10. Different numbers of first positioning portions 11 and first connecting portions 12 may be provided as required, and this embodiment does not impose any limitation on this.

[0032] Please read again Figure 3 The lamp board 20 is located between the base 10 and the heat sink 100 and is attached to the heat sink 100. The lamp board 20 also includes a light source 21 ( Figure 6), the light source 21 can be a single light source 21 arranged on the light board 20 or a plurality of light sources 21 arranged around the light board 20 and radiating light toward the side away from the base 10. The light source 21 can be an LED lamp bead or a laser light source. In the present embodiment, the light source 21 is a laser light source, which can be used to realize the laser projection function. In other embodiments, the light source 21 can be an LED lamp bead, which can improve the efficiency of converting electrical energy into light energy and thus reduce energy waste. At the same time, the LED lamp bead generates less heat during lighting, which plays a role in energy saving and environmental protection. On the other hand, the LED lamp bead has a long service life, which reduces the frequency of light source replacement and thus reduces the cost of use.

[0033] The lamp board 20 is also provided with a plurality of fixing parts 22, which are used to fix the lamp board 20 and the radiator 100 and then install them as a whole to the base 10. In this embodiment, the fixing part 22 is a through hole, and a bolt 23 which is nested and matched with the fixing part 22 is provided on the side of the lamp board 20 away from the radiator 100. The bolt 23 is passed through the through hole and clamped on the corresponding connection part of the radiator 100, so as to realize the fixed connection between the lamp board 20 and the radiator 100, which can prevent the lamp board 20 and the radiator 100 from slipping or falling off during the use of the lamp 200, improve the connection tightness and thus improve the heat dissipation reliability. In addition, during the installation process, the connection between the bolt 23 and the fixing part 22 is simple, convenient and fast, which is convenient for the production and installation of the lamp 200, and can save assembly time and improve production efficiency.

[0034] See also Figure 5 and Figure 6 The lamp 200 further includes a transfer mounting member 30 for mounting components. The transfer mounting member 30 is disposed on a side of the heat sink 100 away from the lamp board 20 and connected to the heat sink 100. The transfer mounting member 30 can carry a buffering and anti-collision device, an electronic device, etc., which is not limited in this embodiment. For example, the transfer mounting member 30 can be used to fix a circuit board or a controller, etc.

[0035] The lamp 200 also includes a lens assembly 40, which includes a lens 41 and a lens barrel 42. The lens 41 is arranged in the lens barrel 42, and a light-transmitting hole 401 is opened on the lens barrel 42. The lens assembly 40 is arranged between the base 10 and the lamp board 20. The light source 21 of the lamp board 20 is directly opposite to the light-transmitting hole 401, and the distance between the light source 21 and the light-transmitting hole 401 is as small as possible, so that the light generated by the light source 21 can enter the light-transmitting hole 401 as much as possible and be emitted through the lens 41 in the lens barrel 42, thereby effectively improving the utilization rate of light energy. In addition, the lens assembly 40 is installed on the base 10 and abuts against the lamp board 20. The housing 41 has a large supporting area, which can evenly transmit the external force acting on the lamp board 20 to the base 10, and can improve the structural stability of the lamp 200 to a certain extent to ensure that the lamp 200 will not tip over during use.

[0036] See also Figure 7The heat sink 100 provided in the embodiment of the present application includes a main body 101, a plurality of heat dissipation fins 102, a plurality of second positioning portions 103, and a plurality of second connection portions 104. The main body 101 has a geometric center 1011, and the plurality of heat dissipation fins 102 are radially and evenly distributed on the periphery of the main body 101 with the geometric center 1011 of the main body 101 as the center. The central angle corresponding to two adjacent heat dissipation fins 102 with the geometric center 1011 as the center is α. The plurality of second positioning portions 103 cooperate with the first positioning portion 11 for positioning, and the plurality of second positioning portions 103 are respectively arranged on at least two heat dissipation fins 102 among the plurality of heat dissipation fins 102. The plurality of second connection parts 104 are fixedly connected to the first connection part 12, and the plurality of second connection parts 104 are respectively arranged on at least two of the plurality of heat dissipation fins 102. The plurality of second positioning parts 103 and the plurality of second connection parts 104 are alternately arranged around the outer periphery of the main body 101, and the central angle corresponding to the geometric center 1011 of the adjacent second positioning parts 103 and the second connection parts 104 is β, and β is an integer multiple of α. The plurality of heat dissipation fins 102 of the above-mentioned radiator 100 are evenly spaced, which can avoid the problem of unsatisfactory overall heat dissipation effect and serious material waste caused by unreasonable arrangement of the heat dissipation fins 102, thereby ensuring heat dissipation and ventilation of each area of ​​the radiator 100 to enhance the heat dissipation effect. In addition, multiple second positioning portions 103 and multiple second connecting portions 104 are provided, and the multiple second positioning portions 103 and multiple second connecting portions 104 are respectively provided on at least two heat dissipation fins 102 among the multiple heat dissipation fins 102. On the one hand, the connection firmness between the heat sink 100 and other mounting parts can be strengthened to a certain extent, and the reliability of the installation can be improved. On the other hand, it can play a certain positioning role. Further, the multiple second positioning portions 103 and multiple second connecting portions 104 are alternately arranged around the outer periphery of the main body 101, and the central angle corresponding to the geometric center 1011 of the adjacent second positioning portions 103 and second connecting portions 104 is β. During the installation process, only one second positioning portion 102 or one second connecting portion 104 needs to be aligned to realize the rapid positioning of the heat sink 100 and other mounting parts, which can reduce the assembly steps, thereby improving the assembly speed and improving the production efficiency.

[0037] Next, each component of the radiator 100 and the specific structure of each component will be introduced one by one.

[0038] See also Figure 3 and Figure 7 In this embodiment, the heat sink 100 is used to dissipate heat for the lamp 200 , and includes a main body 101 and a plurality of heat dissipation fins 102 .

[0039] The main body 101 is roughly plate-shaped, such as a circular plate, a long plate, etc. The main body 101 has a geometric center 1011. When the main body 101 is a regular geometric figure, its geometric center 1011 is the center of the geometric figure. For example, the geometric center 1011 can be the center of a circular plate, the center of gravity of a triangular plate, etc. Further, the main body 101 can also be an irregular geometric figure, and its geometric center 1011 is the center of gravity of the geometric figure. The two positions of the irregular geometric figure can be used as suspension points, and lines are drawn from the suspension points along the direction of gravity. The intersection of the two lines is the center of gravity. In this embodiment, the main body 101 is a circular plate, and the geometric center 1011 is the center of the circle. The main body 101 occupies a large area of ​​the radiator 100, so the main body 101 can cover most of the area of ​​the lamp board 20, thereby accelerating the heat dissipation speed of the lamp board 20 and improving the heat dissipation efficiency, avoiding heat accumulation of the lamp board 20, and maintaining the temperature of the lamp 200 within a suitable operating temperature range.

[0040] A plurality of heat sink fins 102 are radially and evenly distributed on the periphery of the main body 101 with respect to the geometric center 1011 of the main body 101. Specifically, the central angle between two adjacent heat sink fins 102 with respect to the geometric center 1011 is α. The plurality of heat sink fins 102 arranged evenly at intervals are used to increase the heat dissipation surface area. On the one hand, a heat dissipation channel 105 can be formed between the plurality of heat sink fins 102. The heat sink channel 105 can increase the contact area between the air and the radiator 100, thereby increasing the heat dissipation area and improving the heat dissipation effect. On the other hand, the evenly spaced arrangement of adjacent heat sink fins 102 can avoid the problem of unsatisfactory overall heat dissipation effect and serious waste of materials caused by unreasonable arrangement of the heat sink fins 102, thereby ensuring heat dissipation and ventilation in each area of ​​the radiator 100 to enhance the heat dissipation effect. It should be noted that the radiator 100 can be arranged in different models, and the values ​​of α corresponding to different models are different. As an example, the value range of α can be 15° to 90°, for example, the value of α can be 15°, 30°, 45°, 90°, etc., to meet the use requirements of the heat sink 100 at different positioning angles. It should be noted that the value range of α can also be other angles. This embodiment does not limit the value of α.

[0041] The heat sink 100 includes a second positioning portion 103, and a plurality of second positioning portions 103 are arranged on at least two heat sink fins 102 among the plurality of heat sink fins 102. It should be noted that the second positioning portion 103 can be arranged on each heat sink fin 102, so that each heat sink fin has the function of being positioned and connected with other mounting parts. The second positioning portion 103 can also be arranged at intervals on the heat sink fins 102, specifically, a second positioning portion 103 is arranged for each heat sink fin 102, or a second positioning portion 103 is arranged for each two, three or other number of heat sink fins 102. In this embodiment, a second positioning portion 103 is provided every three heat sink fins 102. At the same time, the fin length of the heat sink fin 102 provided with the second positioning portion 103 is greater than the length of the heat sink fin 102 without the second positioning portion 103. On the one hand, it is convenient to install and fix the second positioning portion 103, and provide a larger installation space; on the other hand, the heat sink fin 102 provided with the second positioning portion 103 has a longer fin length, which can increase the contact area between the air and the radiator and improve the heat dissipation efficiency. The second positioning portion 103 is used to cooperate with the first positioning portion 11 on the base 10 for positioning. Specifically, the second positioning portion 103 is integrally formed and fixedly connected with the heat sink fin 102, which can improve the firmness of the connection and reduce the occurrence of separation or slippage of the radiator 100 and the base 10 during the use of the lamp 200. It should be noted that the second positioning portion 103 can be set at any position of the heat sink fin 102, such as the middle, end or other position of the heat sink fin 102. As an example, the second positioning portion 103 is arranged at one end of the heat dissipation fin 102 away from the main body 101, which can avoid occupying the heat dissipation area, thereby maintaining the heat dissipation and ventilation of each area of ​​the heat sink 100 as much as possible to enhance the heat dissipation effect. At the same time, the second positioning portion 103 is located on the side of the heat dissipation fin 102 away from the main body 101, which can be free from space restrictions and facilitate the production and installation of the heat sink 100.

[0042] The second positioning portion 103 is provided with a matching through hole 106, and the matching through hole 106 is used to be detachably nested and matched with the first positioning portion 11. The axial direction of the matching through hole 105 intersects with the extension direction of the heat sink fin 102 (can be perpendicular) and is roughly parallel to the thickness direction of the main body 101. Specifically, the second positioning portion 103 is provided with a notch, and the notch penetrates the peripheral wall of the second positioning portion 103 along the radial direction of the matching through hole 106 and is connected to the matching through hole 106, so that the second positioning portion 103 presents an open-loop structure. The open-loop structure ensures that the radiator 100 is firmly connected to the base 10 while saving assembly materials, thereby saving production costs. At the same time, the open-loop structure can fine-tune the deformation to adapt to first positioning portions 11 of different sizes, thereby better meeting the connection requirements of the radiator and other mounting parts. Furthermore, an inner wall of the through hole 106 is provided with an internal thread 1061 , and threaded fixation can further improve the tightness of the connection, thereby reducing the possibility of separation or slipping of the heat sink 100 and the base 10 during use of the lamp 200 .

[0043] The heat sink 100 includes a second connection portion 104, and a plurality of second connection portions 104 are disposed on at least two heat sink fins 102 among the plurality of heat sink fins 102. It should be noted that the second connection portion 104 can be disposed on each heat sink fin 102, so that each heat sink fin has the function of being positioned and connected with other mounting parts. The second connection portion 104 can also be disposed on the heat sink fin 102 at intervals, specifically, a second connection portion 104 is disposed for each heat sink fin 102, or a second connection portion 104 is disposed for each two, three, or other number of heat sink fins 102. In this embodiment, a second connection portion 104 is provided every three heat fins 102, and at the same time, the fin length of the heat fin 102 provided with the second connection portion 104 is greater than the length of the heat fin 102 without the second connection portion 104, which is convenient for the installation and fixation of the second connection portion 104 and provides a larger installation space; on the other hand, the heat fin 102 provided with the second connection portion 104 has a longer fin length, which can increase the contact area between the air and the radiator and improve the heat dissipation efficiency. The second connection portion 104 is used to cooperate with the first connection portion 12 on the base 10 for positioning. Specifically, the second connection portion 102 is integrally formed and fixedly connected with the heat fin 102, which can improve the firmness of the connection between the second connection portion 104 and the heat fin 102, and reduce the occurrence of separation or slippage of the radiator 100 and the base 10 during the use of the lamp 200. It should be noted that the second connection portion 104 can be provided at any position of the heat fin 102, such as the middle, end or other position of the heat fin 102. As an example, the second connection portion 10 is arranged at one end of the heat dissipation fin 102 away from the main body 101, which can avoid occupying the heat dissipation area, thereby maintaining the heat dissipation and ventilation of each area of ​​the heat sink 100 as much as possible to enhance the heat dissipation effect. At the same time, the second connection portion 104 is located on the side of the heat dissipation fin 102 away from the main body 101, which can be free from space restrictions and facilitate the production and installation of the heat sink 100.

[0044] The second connection part 104 is provided with a matching through hole 106, and the matching through hole 106 is used to be detachably nested and matched with the first connection part 12. The axial direction of the matching through hole 105 intersects with the extension direction of the heat sink fin 102 (can be perpendicular) and is roughly parallel to the thickness direction of the main body 101. Specifically, the second connection part 104 is provided with a notch, and the notch penetrates the peripheral wall of the second connection part 104 along the radial direction of the matching through hole 106 and is connected with the matching through hole 106, so that the second connection part 104 presents an open ring structure. The open ring structure ensures that the heat sink 100 is connected and tightened with the base 10 while saving assembly materials, thereby saving production costs. At the same time, the open ring structure can fine-tune the deformation to adapt to the first positioning part 11 of different sizes, so as to better meet the connection requirements of the heat sink and other mounting parts. Further, the inner wall of the matching through hole 106 is provided with an internal thread 1061, and the threaded fixation can further improve the tightness of the connection, and reduce the occurrence of separation or slippage between the heat sink 100 and the base 10 during the use of the lamp 200. A threaded fastener 107 is also provided at one end of the second connection portion 104 away from the first connection portion 12, and the threaded fastener 107 is passed through the matching through hole 106 and connected to the first connection portion 12. The threaded fastener 107 may be a bolt or a screw. As an example, the first connection portion 12 is a screw column, and the threaded fastener 107 is a screw. After the screw column protrudes into the matching through hole 106, the head of the screw presses the matching through hole 106, and the other end of the screw is inserted into the inner wall of the screw column, so that the radiator 100 is fixed to the screw column. The threaded fastener 107 can further improve the connection tightness between the radiator 100 and the base 10, and reduce the occurrence of separation or slippage of the radiator 100 and the base 10 during the use of the lamp 200.

[0045] In this embodiment, a plurality of second connection parts 104 and a plurality of second positioning parts 103 are alternately arranged around the outer circumference of the main body 101, and the central angle corresponding to the geometric center 1011 of the adjacent second positioning parts 103 and the second connection parts 102 is β, and β is an integer multiple of α. That is, the central angle corresponding to the geometric center 1011 of the adjacent first positioning parts 11 and the first connection parts 12 is β. On the one hand, the provision of a plurality of second positioning parts 103 and a plurality of second connection parts 104 can strengthen the connection firmness between the heat sink 100 and the base 10 to a certain extent, and improve the reliability of the installation. On the other hand, both can play a certain positioning role. Furthermore, the central angle corresponding to the adjacent second positioning portion 103 and the second connecting portion 104 is β. During the installation process, multiple second positioning portions 103 are arranged on the same circumference, and multiple second connecting portions 104 are arranged on the same circumference. It is only necessary to align one second positioning portion 103 and one second connecting portion 104 to achieve rapid positioning of the radiator 100 and other mounting parts, which can reduce the assembly steps, thereby improving the assembly speed and improving production efficiency. It should be noted that the radiator 100 can be set to different models, and the values ​​of β corresponding to different models are different. Specifically, the value range of β can be 15° to 90°, for example, the value of β can be 15°, 30°, 45°, 60°, 90°, etc., to meet the use requirements of the radiator 100 at different angles. It should be noted that the value range of β can also be other angles, and the value of β is not limited in this embodiment.

[0046] Please refer again Figure 6 and Figure 7 It should be noted that, in this embodiment, the second connection portion 104 and the second positioning portion 103 have the same structure, and the second positioning portion 103 and the second connection portion 104 are arranged on the same circumference with the geometric center 1011 as the center, so the second connection portion 104 can also be used as the second positioning portion 103. In this embodiment, the sum of the number of the second positioning portion 103 and the second connection portion 104 is greater than the sum of the number of the first positioning portion 11 and the first connection portion 12. At least one of the second positioning portion 103 and the second connection portion 104 is also used to connect to the adapter mounting member 30 or other electronic devices. The adapter mounting member 30 is used to install parts. The adapter mounting member 30 is provided with at least one connecting through hole 31, and the fastener 32 is inserted into the connecting hole 31, so as to realize the connection and matching between the adapter mounting member 30 and the radiator 100, and the connection between the fastener 32 and the connecting hole 31 is simple and convenient, which is convenient for installation and disassembly.

[0047] See also Figure 3 , Figure 7 and Figure 8In this embodiment, the radiator 100 further includes a plurality of third connection portions 108. The third connection portions 108 are used to be connected to the consolidation portions 22 to achieve a fixed connection between the radiator 100 and the lamp board 20, and can prevent the lamp board 20 and the radiator 100 from slipping or falling off during use of the lamp 200, thereby improving the tightness of the connection and thus improving the heat dissipation reliability. The plurality of third connection portions 108 are distributed on the periphery of the main body 101 with the geometric center 1011 of the main body 101 as the center. Specifically, the third connection portion 108 is disposed at the connection between the heat dissipation fins 102 and the main body 101, and is located between two adjacent heat dissipation fins 102. It should be noted that the third connection portion 108 can be disposed between every two heat dissipation fins 102, so that the third connection portion 108 covers the entire periphery of the main body 101. The third connection parts 108 can also be distributed at equal intervals on the periphery of the main body 101. Specifically, a third connection part 108 is provided for every three heat dissipation fins 102, or a third connection part 108 is provided for every five, six or other number of heat dissipation fins 102. It should be noted that this embodiment does not limit the number of intervals between the heat dissipation fins 102 between adjacent third connection parts 108. The above-mentioned third connection part 108 can realize the fixed connection between the radiator 100 and the lamp board 20 without destroying the main body 101 and the heat dissipation fins 102 of the radiator 100 on a large scale. On the one hand, it can ensure the integrity of the radiator 100 and improve the structural strength of the radiator 100. On the other hand, the radiator 100 can make full use of the heat dissipation area and improve the heat dissipation rate in a limited heat dissipation area.

[0048] The third connection portion 108 is also provided with a connection through hole 1081 for connecting with the fixing portion 22. Specifically, in some embodiments, two adjacent heat dissipation fins 102 have a first surface 1021 and a second surface 1022 opposite to each other, and the main body 101 connected between the adjacent heat dissipation fins 102 has a third surface 1011, and the third surface 1011 is connected between the first surface 1021 and the second surface 1022. The connection through hole 1081 can be made to penetrate the first surface 1021, the second surface 1022 and the third surface 1011 at the same time by punching. The fixing portion 22 is penetrated through the connection through hole 1081, so as to realize the fixed connection between the radiator 100 and the lamp board 20, prevent the lamp board 20 and the radiator 100 from slipping and falling off during the use of the lamp 200, improve the connection tightness and thus improve the heat dissipation reliability. In other embodiments, the connection through hole 1081 can also be defined by the concave structure on the surface of the two adjacent heat dissipation fins 102 and the surface of the main body 101. Furthermore, the inner wall of the connecting through hole 1081 is also provided with an internal thread (not shown in the figure), and the threaded fixation can further improve the reliability of the connection and tightening, thereby reducing the occurrence of separation or slippage between the heat sink 100 and the base 10 during use of the lamp 200.

[0049] In summary, the embodiment of the present application provides a heat sink 100, including a main body 101, a plurality of heat sink fins 102, a plurality of second positioning portions 103, and a plurality of second connecting portions 104. A plurality of heat sink fins 102 are arranged on the periphery of the main body 101, and the plurality of heat sink fins 102 are radially distributed with equal intervals around the geometric center 1011 of the main body 101, and the central angle of two adjacent heat sink fins 102 with the geometric center 1011 as the center is α, which can avoid the problem of unsatisfactory overall heat dissipation effect and serious material waste caused by unreasonable arrangement of the heat sink fins 102, thereby ensuring heat dissipation and ventilation in each area of ​​the heat sink 100 to enhance the heat dissipation effect. In addition, multiple second positioning parts 103 and multiple second connecting parts 104 are provided, and the multiple second positioning parts 103 and multiple second connecting parts 104 are respectively provided on at least two heat sinks 102 of the multiple heat sinks 102. On the one hand, the heat sink 100 can be fastened to other mounting parts without damaging the heat sink 100, and the heat dissipation area can be fully utilized as much as possible to improve the heat dissipation efficiency. On the other hand, the second positioning part 103 and the second connecting part 104 have good connection firmness with other mounting parts, which can reduce the risk of the heat sink 100 and the mounting part falling off during the use of the lamp 200, thereby improving the reliability of the installation. Furthermore, the second positioning part 103 and the second connecting part 104 can both play a certain positioning role. Furthermore, multiple second positioning portions 103 and multiple second connecting portions 104 are alternately arranged around the outer circumference of the main body 101, and the central angle corresponding to the geometric center 1011 of adjacent second positioning portions 103 and second connecting portions 104 is β. During the installation process, only one second positioning portion 103 and one second connecting portion 104 need to be aligned to achieve rapid positioning of the heat sink 100 and other mounting parts, which can reduce the assembly steps, thereby improving the assembly speed and improving production efficiency.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A radiator, characterized in that: The heat sink is applied to a lamp, the lamp comprising a base and a lamp panel, the base having a first positioning portion and a first connecting portion; the heat sink comprises: a main body portion, the main body portion having a geometric center; A plurality of heat dissipation fins, wherein the plurality of heat dissipation fins are radially distributed around the periphery of the main body at equal intervals with the geometric center of the main body as the center; a central angle α is defined between two adjacent heat dissipation fins with the geometric center as the center; a plurality of second positioning portions for cooperating with the first positioning portion for positioning, wherein the plurality of second positioning portions are respectively disposed on at least two of the plurality of heat dissipation fins; and a plurality of second connection parts for fixedly connecting to the first connection part, wherein the plurality of second connection parts are respectively provided on at least two heat dissipation fins among the plurality of heat dissipation fins; A plurality of second positioning portions and a plurality of second connecting portions are alternately arranged around the outer circumference of the main body. A central angle β corresponding to adjacent second positioning portions and second connecting portions with the geometric center as the circle center is formed, and β is an integer multiple of α.

2. The radiator according to claim 1, wherein The second positioning portion is provided with a matching through hole for plugging and matching with the first positioning portion.

3. The radiator according to claim 2, wherein: The inner wall of the matching through hole is provided with an internal thread.

4. The radiator according to claim 2, wherein: The second positioning portion is provided with a notch, and the notch penetrates the peripheral wall of the second positioning portion along the radial direction of the matching through hole and is communicated with the matching through hole, so that the second positioning portion has an open ring structure.

5. The radiator according to any one of claims 1 to 4, characterized in that The second positioning portion and the second connecting portion have the same structure, and the second positioning portion and the second connecting portion are arranged on the same circumference with the geometric center as the center.

6. The heat sink according to claim 5, wherein: The lamp also includes an adapter mounting member for installing components; the sum of the number of the second positioning portions and the second connecting portions is greater than the sum of the number of the first positioning portions and the first connecting portions, and at least one of the second positioning portions and the second connecting portions is also used to connect to the adapter mounting member.

7. The radiator according to any one of claims 1 to 4, characterized in that The lamp board is provided with a fixing portion, and the heat sink further includes a plurality of third connecting portions for being fixedly connected to the fixing portion, and the plurality of third connecting portions are distributed on the periphery of the main body with the geometric center of the main body as the center.

8. The heat sink according to claim 7, wherein: The third connection portion is arranged at the connection between the heat dissipation fins and the main body, and is located between two adjacent heat dissipation fins. Multiple third connection portions are evenly distributed on the periphery of the main body, and the third connection portion is provided with a connecting through hole for connecting with the fixing portion.

9. The heat sink according to claim 8, wherein Two adjacent heat dissipation fins have a first surface and a second surface facing each other, the main body has a third surface, the third surface is connected between the first surface and the second surface, and the connecting through hole simultaneously passes through the first surface, the second surface and the third surface; or, The connecting through hole is defined by the surfaces of the two adjacent heat dissipation fins and the recessed structures on the surface of the main body, and the inner wall of the connecting through hole is provided with an internal thread.

10. A lamp, characterized in that: include: a base, the base having a first positioning portion and a first connecting portion; The radiator according to any one of claims 1 to 9; The first positioning portion cooperates with at least one of the plurality of second positioning portions for positioning; the first connecting portion is fixedly connected to at least one of the plurality of second connecting portions; and A lamp board is connected to the heat sink.

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