TWI411748B - Lamp device - Google Patents

Abstract

The utility model relates to a lamp, which comprises a casing, a radiator, a radiating fan and a luminous module. An assembly opening and an electrical connection piece are respectively arranged at two ends of the casing. The radiator is arranged in the assembly opening and provided with a substrate, and at least one blocking plate are arranged on the substrate to form a first air flow channel to be communicated with the assembly opening. The radiating fan is contained in the casing and combined with the radiator, at least one flow guide face is arranged on the radial lateral wall of the radiating fan, the flow guide face is opposite to the blocking plate of the radiator, a second air flow channel communicated with the assembly opening is formed between the flow guide face and the inner wall face of the casing, and the lighting module is combined with the substrate and electrically connected with the electrical connection piece. The lamp utilizes the first air flow channel and the second air flow channel to communicate the assembly opening, thereby having the advantages of being low in structure complexity, low in manufacture cost and high in radiating performance.

Description

Lamp

The present invention relates to a luminaire, and more particularly to a luminaire having both low turbulence and aesthetics.

The conventional lamp structure is, for example, the "Lamp" patent of the invention of the Republic of China, I316121, please refer to Fig. 1, the conventional lamp 9 includes a first casing 91, a second casing 92, and a radiator. 93. A light-emitting element 94 and a heat dissipation fan 95. The first housing 91 and the second housing 92 are combined to form an outer casing of the lamp 9. The first housing 91 is provided with an air outlet portion 911, and the second housing 92 is provided with an air inlet portion 921. The heat sink 93, the light-emitting element 94, and the heat-dissipating fan 95 are disposed in a casing formed by the first casing 91 and the second casing 92, and the heat sink 93 is located in the light-emitting component 94 and the heat-dissipating fan 95. between. Therefore, when the cooling fan 95 is in operation, the external airflow can be sucked into the conventional lamp 9 through the air inlet portion 921 of the second casing 92, and the airflow is guided through the radiator 93 and then the air outlet portion. The 911 blows the conventional luminaire 9 to dissipate the thermal energy generated by the illuminating element 94 during operation.

However, the outer casing of the conventional lamp 9 is composed of the first casing 91 and the second casing 92, which not only causes an increase in the number of components, but also makes the overall structure relatively complicated, and may also be in the first casing 91 and The assembly of the second casing 92 causes insufficient structural strength and assembly tightness. In addition, since the heat sink 93, the light-emitting element 94, and the heat-dissipating fan 95 are completely covered in the outer casing of the conventional lamp 9, the first casing 91 and the second casing must be respectively opened in the manner of opening holes. The ventilating portion 911 and the air inlet portion 921 are formed, which causes the conventional luminaire 9 to have not only disadvantages such as inconvenience in processing and improvement in manufacturing cost, but also on the side where the illuminating member 9 is provided with the illuminating member 94. Holes affect the appearance and are not able to provide further waterproof and dustproof functions.

In addition, when the cooling fan 95 drives the airflow from the heat sink 93 through the air outlet portion 911 of the first casing 91 to flow out of the conventional lamp 9, the airflow that is laterally moved due to the driving may hit the first casing. 91 is adjacent to the wall surface of the air outlet portion 911, and the wall surface of the portion is not correspondingly provided with a flow guiding structure, so that it is easy to generate a spoiler at the wall surface.

Furthermore, when the conventional lamp 9 is actually installed, in order to meet the overall aesthetic requirements of the decoration, the conventional lamp 9 must be embedded in the rear of the ceiling of the decorative compartment. However, once the conventional lamp 9 is disposed in an in-line hidden manner, the air outlet portion 911 and the air inlet portion 921 are also buried above the ceiling of the decorative compartment, and only the light-emitting element 94 remains exposed to the ceiling. surface. Since the space between the ceiling and the concrete floor panel of the building itself is generally closed, the air in the space is not easily circulated with the outside air, so the circulation of the air around the conventional lamp is not good, and the system will The heat dissipation performance of the conventional lamp 9 is reduced, thereby generating heat accumulation problems, which affect the service life of the conventional lamp 9.

For the above reasons, it is necessary to further improve the above-mentioned conventional lamp 9 in order to have the effects of beautiful appearance, high flow guiding smoothness, low manufacturing cost, and high heat dissipation efficiency.

The main object of the present invention is to provide a lamp, wherein at least one flow guiding surface is formed on a radial side wall of a heat dissipating fan, and an air flow channel is formed between the guiding surface and a casing to smoothly guide the airflow by the lamp. The assembly port flows into or out of the luminaire.

Another object of the present invention is to provide a lamp with a flow guiding portion at a junction of a heat dissipating fan and a heat sink for smoothly guiding the air flow, thereby reducing the effect of turbulence.

A further object of the present invention is to provide a luminaire that does not require any additional air inlet holes or air outlet holes to be separately fabricated in the outer casing, and has the effects of reducing structural complexity and manufacturing cost while maintaining high heat dissipation performance.

Another object of the present invention is to provide a lamp which does not form a hole on the side where the light-emitting module is provided to enhance the appearance of the exterior.

Another object of the present invention is to provide a lamp having a recessed portion disposed at a hub position of a fan wheel of a heat dissipating fan, and having the effect of maintaining the smooth operation of the fan wheel.

Another object of the present invention is to provide a lamp, which can be combined with a casing, a cooling fan and a radiator with only one screwing component, which has the advantages of reducing the overall structure complexity, improving the ease of assembly and disassembly, and reducing the manufacturing process and cost. The effect.

The lamp according to the present invention comprises a casing, a radiator, a cooling fan and a lighting module. The two ends of the outer casing are respectively provided with an assembly port and an electrical connector; the heat sink is disposed on the assembly port, the heat sink has a substrate, and at least one barrier plate is disposed on the substrate to form a first air flow passage and the The heat dissipating fan is disposed in the outer casing and coupled to the heat sink, and the radial sidewall of the heat dissipating fan forms at least one flow guiding surface opposite to the blocking plate of the heat sink, and A second air flow channel is formed between the air flow surface and the inner wall surface of the outer casing, and the second air flow channel is connected to the assembly port. The light emitting module is coupled to the substrate and electrically connected to the electrical connector.

The baffle plate is disposed flush with the flow guiding surface toward the surface of the second air flow channel.

The air-dissipating fan has a fan-flow passage that accommodates a fan wheel. The fan-flow channel has one end aligned with the first airflow channel, and the end is provided with a flow guiding portion to form a fan-shaped flow channel toward the heat sink. Trail structure.

The heat sink has at least one flow guiding portion, and the flow guiding portion is coupled to at least the blocking plate of the heat sink, and the first air flow passage has a reduced diameter structure toward the heat dissipation fan.

The above and other objects, features and advantages of the present invention will become more <RTIgt; The first embodiment of the lamp of the present invention is shown, and the lamp comprises at least a casing 1, a radiator 2, a cooling fan 3 and a lighting module 4. The housing 1 is used to couple at least one of the heat sink 2 and the heat dissipation fan 3, and the heat dissipation fan 3 is disposed inside the housing 1; the light module 4 is combined with the heat sink 2.

The housing 1 is a hollow housing, and the housing 1 has an assembly opening 11 , an electrical connector 12 , and at least one set of contacts 13 . The assembly opening 11 and the electrical connector 12 are respectively disposed on the housing 1 . The two ends are preferably located at opposite ends of the outer casing 1 as shown in FIG. The assembly port 11 communicates with the space inside the outer casing 1 for the heat dissipating fan 3 to be smoothly assembled inside the outer casing 1; the electrical connector 12 is for receiving electric power as a power source of the lamp of the invention; the assembly portion 13 It is provided in contact with at least one of the heat sink 2 and the heat radiating fan 3.

The heat sink 2 is made of a heat conductive material, and the heat sink 2 has a substrate 21, at least one barrier baffle 22, a first air flow passage 23 and at least one joint portion 24. The substrate 21 is disposed adjacent to the assembly opening 11 of the outer casing 1. The substrate 21 has an opposite first surface 211 and a second surface 212. When the heat sink 2 is combined with the outer casing 1, the first The surface 211 is facing away from the assembly opening 11 , and the second surface 212 faces the assembly opening 11 , and the substrate 21 completely covers the assembly opening 11 in the axial direction of the assembly opening 11 . The at least one barrier layer 22 is disposed on the second surface 212 of the substrate 21 and extends away from the first surface 211 to form the second surface 212 of the substrate 21 by the at least one barrier spacer 22 The first air flow passage 23 communicates with the inside of the outer casing 1 through the assembly opening 11. The at least one joint portion 24 is formed on at least one of the substrate 21 and the at least one barrier baffle 22 for abutting engagement with the joint portion 13 of the outer casing 1. In addition, the heat sink 2 preferably has at least one flow guiding fin 25 located in the first air flow channel 23 and having a protruding height relative to the second surface 212. Thereby, the at least one flow guiding fin 25 can not only increase the heat dissipation surface area of the heat sink 2, but also can guide the airflow in the first air flow passage 23 to move in a predetermined direction. In this embodiment, the number of the at least one baffle plate 22 is two, and the first air flow channel 23 is located between the two baffle plates 22. In addition, the joint portion 24 and the joint portion 13 are firmly coupled by a first screwing member F1.

The cooling fan 3 can be selected as an axial fan or a centrifugal fan, and is preferably an axial fan. The heat dissipation fan 3 is coupled to the heat sink 2 , and the heat dissipation fan 3 has a wind flow passage 31 , a fan wheel 32 , at least one flow guiding surface 33 , and a flow guiding portion 34 . In detail, the air flow channel 31 has a first end 311 and a second end 312, wherein the first end 311 is spaced apart from the second end 312, and the first end 311 faces and is located at the heat sink. a first air flow passage 23; the fan wheel 32 is disposed in the air flow passage 31 to drive the airflow in the lamp of the present invention to drive the air flow passage 31 by rotating the fan wheel 32; the at least one flow guiding surface 33 is formed on the radially outer side wall of the heat dissipation fan 3 and disposed opposite to the at least one blocking plate 22, wherein a second air flow channel C is formed between the at least one flow guiding surface 33 and the inner wall surface of the outer casing 1 The assembly port 11 is in communication with each other; the flow guiding portion 34 is disposed at the first end 311 of the driving air flow path 31, and the air guiding portion 34 is such that the portion of the driving air flow path 31 is provided by the portion where the fan wheel 32 is provided One end 311 forms an expanded diameter structure, that is, the expanded diameter structure is formed toward the heat sink 2. Preferably, the at least one flow guiding surface 33 is disposed flush with the surface of the at least one baffle plate 22 facing the second air flow channel C, and the flow guiding portion 34 is preferably formed in a curved shape to form a The concave surface 341 faces the first air flow passage 23. Therefore, by providing the flow guiding surface 33 and the flow guiding portion 34, the airflow can be smoothly guided to flow through the first airflow passage 23, the air flow passage 31, and the second air flow passage C, thereby improving the smooth flow. degree. In addition, according to the rotation direction of the fan wheel 32, the first end 311 can be used as the air outlet side of the heat dissipation fan 3, and the second end 312 corresponds to the air inlet side of the heat dissipation fan 3, or the first end. 311 is the inlet side and the second end 312 is the outlet side. In addition, as shown in FIG. 3 , the heat dissipation fan 3 preferably has at least one fixing portion 35 , and the fixing portion 35 is opposite to the coupling portion 24 and the assembly portion 13 . Therefore, the heat sink 2 and the heat dissipation fan 3 can be stably assembled to the outer casing 1 by using the joint portion 24, the fixing portion 35, and the joint portion 13 only by the screwing member F1. The overall structural complexity of the luminaire of the invention is reduced, the ease of disassembly and assembly is improved, and the manufacturing process and cost are also reduced.

The light-emitting module 4 is coupled to the first surface 211 of the substrate 21 of the heat sink 2 and exposed to the outer casing 1 , and the light-emitting module 4 includes a light-emitting element 41 and a control substrate 42 . The light-emitting element 41 can be a light-emitting diode (LED), a light bulb or other components having the same light-emitting function; the control substrate 42 is electrically connected to the light-emitting element 41 and the electrical connector 12 of the outer casing 1 and is attached thereto. The first surface 211 is convenient for the heat sink 2 to effectively lower the temperature of the light-emitting module 4 during operation, thereby achieving better heat dissipation.

The lamp of the present invention can be installed in a place such as a wall, a ceiling or other place for illumination when it is actually used; for example, the casing 1 of the lamp can be buried above the ceiling of the decorative compartment, only the The assembly port 11 of the outer casing 1 , the substrate 21 of the heat sink 2 and the light-emitting module 4 are exposed on the ceiling surface; in addition, the electrical connector 12 of the outer casing 1 can be electrically connected to a general power supply system to provide power to the The control substrate 42 of the light-emitting module 4 further controls the light-emitting element 41 to generate light. When the cooling fan 3 is in operation, since the first air flow channel 23 and the second air flow channel C are connected to the assembly port 11, the lower temperature of the first and second air flow channels 23, C can be used first. The air is introduced into the outer casing 1 from the assembly port 11, and the warm air with the heat of the light-emitting module 4 is discharged from the assembly port 11 through the outer casing through the other of the first and second air flow passages 23, C. 1. The heat of the light-emitting module 4 is first transmitted to the heat sink 2, and then transmitted to the air around the heat sink 2 by heat conduction to form the higher-temperature air.

With the structural features disclosed above, the luminaire of the present invention can directly connect the first and second air flow passages 23, C by the assembly port 11 as an assembly function, so that the outer casing 1 does not need to be separately processed to open any air inlet or outlet. The air hole can effectively reduce the overall structural complexity, thereby improving the processing convenience and reducing the manufacturing cost, and the hole on the side where the light-emitting module 4 is disposed does not form a hole, and does not affect the appearance of the lamp of the present invention. Furthermore, since the heat dissipation fan 3 has the flow guiding surface 33 disposed opposite the blocking plate 22, the airflow can be smoothly flowed along the second air flow channel C between the assembly port 11 and the fan wheel 32; The heat dissipation fan 3 has the flow guiding portion 34 disposed at the first end 311 of the driving air flow path 31. Therefore, when the cooling fan 3 drives the airflow to flow between the first air flow channel 23 and the fan wheel 32, The air flow can be smoothly guided by the concave surface 341 of the flow guiding portion 34, thereby preventing turbulence between the first air flow passage 23 and the fan wheel 32. In addition, since the first airflow channel 23 and the second airflow channel C for introducing and deriving the airflow of the lamp of the present invention are connected to the assembly port 11, the heat dissipation fan 3 can smoothly introduce and discharge the airflow to improve the overall heat dissipation performance. Thereby, the service life of the lamp of the invention is effectively improved.

Referring to Figures 5 through 7, there is shown a second embodiment of the luminaire of the present invention. Compared with the first embodiment, the present embodiment replaces the heat sink 2 of the first embodiment with another heat sink 5, and still houses the heat sink 5, the heat dissipation fan 3 and the light-emitting module with the outer casing 1. In the group 4, the structure of the casing 1, the heat dissipation fan 3, and the light-emitting module 4 will not be described below. The heat sink 5 also has a substrate 51, at least one blocking plate 52, a first air flow passage 53 and at least one joint portion 54. The substrate 51 is disposed on the assembly port 11 , and the substrate 51 has an opposite first surface 511 and a second surface 512 . The substrate 51 further has at least a first side edge 513 and at least a second side edge 514 . Connected between the first and second surfaces 511, 512, wherein the first side edge 513 and the second side edge 514 are spaced apart from the wall surface of the outer casing 1 forming the assembly opening 11. The at least one baffle plate 52 is disposed on the second surface 512 adjacent to the second side edge 514 to form the first air flow channel 53 on the two surfaces 512. The baffle plate 52 is coupled to the heat dissipating fan 3 The flow surface 33 is opposite, and the surface of the baffle plate 52 facing the second air flow passage C is preferably flush with the flow guiding surface 33, thereby passing through the assembly opening 11 of the outer casing 1, the first air flow passage 53 And the second air flow passage C is connected to the outside of the outer casing 1. The at least one joint portion 54 is formed on at least one of the substrate 51 and the at least one barrier baffle 52 for abutting engagement with the joint portion 13 of the outer casing 1. In addition, the heat sink 5 can have at least one flow guiding fin 55 located in the first air flow channel 53 and have a protruding height relative to the second surface 512, and the at least one guiding fin 55 is compared. Preferably, the inner wall of the outer casing 1 protrudes beyond the first side edge 513. Thereby, the heat sink 5 of the present embodiment can be completely accommodated inside the outer casing 1. The light-emitting cover 6 of the present invention may further include a light-transmissive cover 6 having an opening 61 coupled to the heat sink 2 for the light-emitting module 4 to pass through. The opening portion 61 is housed in the light transmissive cover 6. The light transmissive cover 6 further has a flow guiding wall 62 facing the assembly opening 11 to form an air flow path between the guiding wall 62 and the wall surface of the outer casing 1 forming the assembly opening 11, and the air flow path is connected to The assembly opening 11 , wherein the translucent cover 6 preferably completely covers the assembly opening 11 in the axial direction of the assembly opening 11 . Therefore, a light mask of different colors or types can be selected as the light transmissive cover 6 according to the requirements to generate different light effects, and the effect of protecting the light emitting module 4 can be combined. In addition, if the light-transmissive cover 6 completely covers the assembly opening 11 in the axial direction of the assembly opening 11, the lamp of the present invention can be prevented from forming a hole on the side where the light-emitting module 4 is disposed to enhance the appearance. Beautiful.

Referring to Figures 8 and 9, there is shown a third embodiment of the luminaire of the present invention. Compared with the luminaire of the second embodiment, the luminaire of the third embodiment of the present invention replaces the heat sink 5 of the second embodiment with another heat sink 7, and the heat sink 7 and the heat dissipation fan 3 are accommodated by the outer casing 1. And the light-emitting module 4, the structure of the outer casing 1, the heat-dissipating fan 3, and the light-emitting module 4 will not be described below. The heat sink 7 has a substrate 71, at least one blocking plate 72, a first air flow channel 73 and at least one joint portion 74. The substrate 71 also has a first surface 711, a second surface 712, and at least a first surface. The side edge 713 and the at least one second side edge 714; the connection relationship and the arrangement type of each of the above structures are combined with the substrate 51 of the heat sink 5 of the second embodiment, the baffle plate 52, and the first air flow channel 53 The portion 54 is similar. The difference between the heat sink 7 and the heat sink 5 of the second embodiment is mainly that the heat sink 75 of the heat sink 7 is scattered, and the heat sink 7 is further provided with at least one drain piece 76. In detail, please refer to FIG. 11 at the same time, the flow guiding fin 75 includes a central portion 751 and a scroll-shaped drain portion 752. The central portion 751 is preferably located in the light-emitting module 4, so that the waste heat generated by the light-emitting module 4 is quickly transmitted to the flow-conducting fins 75; the scroll-shaped drain portion 752 is centered on the central portion 751 The arc-shaped scattering shape is such that when the fan wheel 32 of the heat dissipation fan 3 drives the airflow from the heat dissipation fan 3 through the heat sink 7 to the assembly port 11, the swirling airflow sent by the first end 311 of the heat dissipation fan 3 The first air flow passage 73 can be smoothly introduced by the scroll-shaped drain portion 752; or when the fan wheel 32 of the heat-dissipating fan 3 drives the airflow from the assembly port 11 through the heat sink 7 to the heat-dissipating fan 3, The airflow in the first airflow passage 73 can be guided by the scroll-shaped draining portion 752 to form a vortex pattern, and is more smoothly pulled by the fan wheel 32 into the heat-dissipating fan 3.

The drainage piece 76 of the heat sink 7 is coupled to the at least one blocking plate 72, extends along the first side edge 713 across the first air flow path 73, and the drainage piece 76 is preferably located in the cooling fan 3 The flow guiding portion 34. Therefore, by the flow guiding portion 34 and the drainage piece 76, the airflow can smoothly flow between the fan wheel 32 and the assembly port 11 without causing turbulence at the intersection of the heat sink 2 and the heat dissipation fan 3. . In addition, as shown in FIG. 11 , in order to enhance the bonding stability of the drainage piece 76 , the heat sink 7 may be additionally provided with a plurality of flow guiding connectors 77 connected between the drainage piece 76 and the substrate 71; As shown in FIG. 12, the scroll-shaped drain portion 752 of the flow guiding fins 75 can also extend along the second surface 712 to protrude from the first side edge 713, and connect the draining piece 76, thereby strengthening the structure. Together to improve heat dissipation and drainage effects.

Referring to Figures 13 through 15, there is shown a fourth embodiment of the luminaire of the present invention. Compared with the luminaire of the foregoing embodiments, the luminaire of the fourth embodiment of the present invention houses a heat dissipation fan 3 ′ and a heat sink 8 , and the heat sink 8 also has a surface for the illuminating mode. The group 4 is set, so the structure of the outer casing 1 and the light-emitting module 4 will not be described below. The structure of the heat dissipating fan 3' is similar to that of the heat dissipating fan 3 of the foregoing embodiments. It also has a driving air flow path 31', a fan wheel 32', at least one flow guiding surface 33' and a fixing portion 35'. The heat dissipation fan 3' of the embodiment is not provided with a flow guiding portion at the first end 311' of the air blowing flow path 31'. The heat sink 8 has a substrate 81, at least one barrier plate 82, a first air flow channel 83, and at least one joint portion 84. The substrate 81 also has a first surface 811, a second surface 812, and at least one The first side edge 813 and the at least one second side edge 814; the connection relationship and the arrangement type of each of the above structures are the substrate 51, the baffle plate 52, and the first air flow path 53 of the heat sink 5 of the second embodiment. The joint portion 54 is similar. The difference between the heat sink 8 and the heat sink 5 of the second embodiment is mainly that the heat sink 85 of the heat sink 8 has a recess 851, and the heat sink 8 is further provided with at least one flow guiding portion 86. . Therefore, even if the heat dissipation fan 3 having the flow guiding portion 34 in each of the foregoing embodiments is not used, the flow guiding portion 86 of the heat sink 8 can be smoothly guided to the fan wheel 32' and the substrate 81. The airflow between.

In detail, the recessed portion 851 of the heat sink 8 is positioned at the hub of the fan wheel 32' of the heat radiating fan 3' to prevent the flow guiding fin 85 from affecting the rotation of the fan wheel 32'. The flow guiding fin 85 has a plurality of protruding heights, and the protruding height of the recessed portion 851 is small, and the protruding height outside the recessed portion 851 is large. The flow guiding portion 86 is coupled to at least the baffle 82 of the heat sink 8, and the first air flow passage 83 has a reduced diameter structure, that is, the reduced diameter structure is formed by the substrate 81 toward the heat radiating fan 3'. The flow guiding portion 86 preferably extends along the first side edge 813 across the first air flow passage 83 and has a curved shape to form a concave surface 861 toward the first air flow passage 83. The airflow is smoothly guided to flow between the fan wheel 32' and the assembly port 11, so as to improve the diversion effect. In addition, the flow guiding fin 85 is extendably coupled to the concave surface 861 of the flow guiding portion 86. In addition, the heat dissipating fan 3' may be fixed to the heat sink 8 by a second screwing element F2, and the first screwing element F1 is only for fixing and fixing the joint portion 84 and the joint portion 13.

In summary, the illuminating device of the present invention can have low structural complexity, low manufacturing cost, and high heat dissipation performance by connecting the first air flow passages 23, 53, 73, 83 and the second air flow passage C to the assembly port 11; In addition, the flow guiding surfaces 33, 33' and the flow guiding portions 34, 86 can be smoothly guided in the first air flow passages 23, 53, 73, 83, the air flow passages 31, 31' and the second air flow passage C. The flow of air in the middle of the assembly port 11 completely covers the substrate 21 or the transparent cover 6 of the assembly port 11 to improve the appearance of the lamp of the present invention; the recess 851 The flow guiding fins 85 can be prevented from affecting the rotation of the fan wheel 32 ′, and the operation smoothness of the fan wheel 32 ′ can be maintained. Moreover, the fixing portion 35 of the cooling fan 3 and the assembly portion 13 and the joint portion are maintained. The alignment relationship of 24, 54, and 74 can further improve the ease of assembly and disassembly of the lamp of the present invention.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

[this invention]

1. . . shell

11. . . Assembly port

12. . . Electrical connector

13. . . Group

2. . . heat sink

twenty one. . . Substrate

211. . . First surface

212. . . Second surface

twenty two. . . Barrier

twenty three. . . First air channel

twenty four. . . combination

25. . . Diversion fin

3. . . Cooling fan

3’. . . Cooling fan

31. . . Wind tunnel

31’. . . Wind tunnel

311. . . First end

311’. . . First end

312. . . Second end

312’. . . Second end

32. . . Fan wheel

32’. . . Fan wheel

33. . . Diversion surface

33’. . . Diversion surface

34. . . Diversion department

341. . . Concave surface

35. . . Fixed part

35’. . . Fixed part

4. . . Light module

41. . . Light-emitting element

42. . . Control substrate

5. . . heat sink

51. . . Substrate

511. . . First surface

512. . . Second surface

513. . . First side edge

514. . . Second side edge

52. . . Barrier

53. . . First air channel

54. . . combination

55. . . Diversion fin

6. . . Transmissive cover

61. . . Opening

62. . . Diversion wall

7. . . heat sink

71. . . Substrate

711. . . First surface

712. . . Second surface

713. . . First side edge

714. . . Second side edge

72. . . Barrier

73. . . First air channel

74. . . combination

75. . . Diversion fin

751. . . Central department

752. . . Vortex drainage

76. . . Drainage sheet

77. . . Diversion connector

8. . . heat sink

81. . . Substrate

811. . . First surface

812. . . Second surface

813. . . First side edge

814. . . Second side edge

82. . . Barrier

83. . . First air channel

84. . . combination

85. . . Diversion fin

851. . . Depression

86. . . Diversion department

861. . . Concave surface

C. . . Second air channel

F1. . . First screw element

F2. . . Second screw element

[知知]

9. . . Lamp

91. . . First housing

911. . . Ventilation department

92. . . Second housing

921. . . Air intake

93. . . heat sink

94. . . Light-emitting element

95. . . Cooling fan

Figure 1: A cross-sectional view of a combination of conventional lamps.

Fig. 2 is an exploded perspective view showing the first embodiment of the lamp of the present invention.

Figure 3 is a cross-sectional view showing the first embodiment of the lamp of the present invention taken along line 3-3 of Figure 2;

Figure 4 is a cross-sectional view showing the first embodiment of the lamp of the present invention taken along line 4-4 of Figure 2;

Figure 5 is an exploded perspective view of a second embodiment of the lamp of the present invention.

Figure 6 is a cross-sectional view showing the second embodiment of the lamp of the present invention taken along line 6-6 of Figure 5;

Figure 7 is a cross-sectional view showing the second embodiment of the lamp of the present invention taken along line 7-7 of Figure 5;

Figure 8 is an exploded perspective view of a third embodiment of the lamp of the present invention.

Fig. 9 is a sectional view, taken along line 9-9 of Fig. 8, of a third embodiment of the lamp of the present invention.

Figure 10 is a cross-sectional view showing the third embodiment of the lamp of the present invention taken along line 10-10 of Figure 8;

Figure 11 is a cross-sectional view showing the third embodiment of the lamp of the present invention taken along line 11-11 of Figure 9.

Figure 12 is a cross-sectional view showing another configuration of a flow guiding fin of the third embodiment of the lamp of the present invention.

Figure 13 is an exploded perspective view of a fourth embodiment of the lamp of the present invention.

Figure 14 is a cross-sectional view showing the fourth embodiment of the lamp of the present invention taken along line 14-14 of Figure 13;

Figure 15 is a cross-sectional view showing the fourth embodiment of the lamp of the present invention taken along line 15-15 of Figure 13;

1. . . shell

11. . . Assembly port

12. . . Electrical connector

13. . . Group

2. . . heat sink

twenty one. . . Substrate

211. . . First surface

212. . . Second surface

twenty two. . . Barrier

twenty three. . . First air channel

twenty four. . . combination

25. . . Diversion fin

3. . . Cooling fan

31. . . Wind tunnel

311. . . First end

312. . . Second end

32. . . Fan wheel

33. . . Diversion surface

34. . . Diversion department

35. . . Fixed part

4. . . Light module

41. . . Light-emitting element

42. . . Control substrate

F1. . . First screw element

Claims (15)

A lamp comprising: a casing, the two ends of the casing are respectively provided with an assembly port and an electrical connector; a heat sink is disposed at the assembly port, the heat sink has a substrate, and at least one barrier plate is disposed on the substrate Forming a first air flow passage to communicate with the assembly port; a heat dissipation fan is disposed in the outer casing and coupled to the heat sink, and the radial sidewall of the heat dissipation fan forms at least one flow guiding surface, the flow guiding surface a second air flow passage is formed between the flow guiding surface and the inner wall surface of the outer casing, and the second air flow passage is connected to the assembly port; and a light emitting module is Bonding to the substrate and electrically connecting the electrical connector. The luminaire of claim 1, wherein the baffle plate is disposed flush with the flow guiding surface toward a surface of the second air flow passage. The luminaire of claim 1, wherein the cooling fan has a driving flow passage for accommodating a fan wheel, the driving air flow channel has one end aligned with the first air flow channel, and the end is provided with a guiding portion The wind tunnel is formed with an expanded diameter structure toward the heat sink. The luminaire of claim 1, wherein the heat sink has at least one flow guiding portion, and the guiding portion is coupled to at least the blocking plate of the heat sink, and the first air flow passage is directed toward the cooling fan. A reduced diameter structure. The luminaire of claim 3, wherein the flow guiding portion has a curved shape to form a concave surface facing the first air flow passage. The luminaire of claim 1, wherein the substrate of the heat sink is provided with at least one flow guiding fin in the first air flow channel. The luminaire of claim 6, wherein the substrate is disposed at the assembly opening, and the at least one flow guiding fin protrudes toward an inner wall surface of the outer casing beyond a side edge of the substrate. The luminaire of claim 6, wherein the at least one flow guiding fin is in a scattering shape. The luminaire of claim 8, wherein the at least one flow guiding fin comprises a central portion and a scroll-shaped drain portion, and the scroll-shaped drain portion is curved in a shape of a center around the central portion. The luminaire of claim 6, wherein the at least one flow guiding fin has a plurality of protruding heights with respect to a surface of the substrate, and a recess is formed at a small protruding height, the recess The pair is located at the hub position of the fan wheel of the cooling fan. The luminaire of claim 3, wherein the heat sink further has a drainage piece coupled to the at least one barrier and located at the flow guiding portion of the cooling fan. The luminaire of claim 11, wherein the louver extends across the first airflow passage. The luminaire of claim 11, wherein the heat sink further has a plurality of flow guiding connectors connected between the draining sheet and the substrate. The luminaire of claim 11, wherein the substrate of the heat sink is provided with at least one flow guiding fin in the first air flow channel, and the at least one guiding heat sink is connected to the draining piece. The luminaire of claim 1, wherein the housing has a plurality of connecting portions, the cooling fan has a fixing portion, and the heat sink has a joint portion, wherein the fixing portion is opposite to the joint portion and the joint portion Bit combination.