CN201434253Y - Lamp fitting - Google Patents

Abstract

A lamp comprises a housing, a heat sink, a light emitting device, a heat dissipation fan and a blocking ring. The shell is provided with an air inlet part and an air outlet part; the radiator is provided with a fixed part at one side and a plurality of fins and an accommodating space at the other side, each fin is provided with a first end and a second end respectively, the first end faces the air inlet part, the second end faces the fixed part, and each fin surrounds the periphery of the accommodating space; the light-emitting element is combined with the fixing part; the heat radiation fan is arranged in the accommodating space; the blocking ring is positioned between the air inlet part and the radiator. Therefore, the blocking ring can be utilized to reduce the backflow of partial air flow towards the air inlet part and form a turbulent flow phenomenon, so that the external air flow introduced by the heat radiation fan can smoothly transfer heat to the external space through the air outlet part, and the heat radiation effect is improved.

Description

lamps

technical field

The utility model relates to a lamp, in particular to a lamp capable of cooling the lamp itself.

Background technique

Please refer to FIG. 1 , the existing lamp 9 with heat dissipation function includes a housing 91 , a light emitting element 92 , a heat sink 93 and a heat dissipation fan 94 . One end of the casing 91 forms a light-transmitting portion 911, and the other end forms an electrical connection portion 912, and the outer peripheral wall of the casing 91 is provided with an air inlet portion 913 and an air outlet portion 914; The fan 94 is arranged inside the casing 91, wherein the light-emitting element 92 is attached to one side of the heat sink 93, and the side of the heat sink 93 facing away from the light-emitting element 92 forms several fins 931 and a housing The space 932 , the cooling fan 94 is disposed in the containing space 932 .

In actual use, the existing lamp 9 is connected to a lamp holder (not shown) such as a wall, a ceiling or a table, etc. by means of the electrical connection part 912, so as to form an electrical connection with a general power supply system through the lamp holder, Furthermore, the light-emitting element 92 can be energized to generate light, and project the light to the outside through the light-transmitting portion 911 of the casing 91 . In addition, when the light-emitting element 92 generates heat due to electrification, the heat conduction of the fins 931 of the radiator 93 and the work of the cooling fan 94 are used to introduce the external airflow A through the air inlet 913, and further Guide the external airflow A to pass through the gaps of the fins 931, and then transfer the heat to the external space through the air outlet 914 by the external airflow A, so as to achieve a predetermined heat dissipation effect, so that the use of the light emitting element 92 can be extended life.

However, the existing lamp 9 can utilize the design of the heat sink 93 and the heat dissipation fan 94 to provide a predetermined heat dissipation effect for the light emitting element 92 . However, as shown in FIG. 1 , when the cooling fan 94 introduces the external airflow A from the air inlet portion 913 and guides the external airflow A into the accommodating space 932, part of the airflow a of the external airflow A easily passes through each The gaps of the fins 931 flow back toward the air inlet portion 913. In addition to causing the external airflow A to fail to transfer heat to the outside space through the air outlet portion 914, the part of the airflow a may also pass through the fins 931. One end close to the air inlet portion 913 forms a turbulence phenomenon with the subsequent external airflow A introduced from the air inlet portion 913, which affects the overall heat dissipation effect of the radiator 93 and the cooling fan 94, so the existing lamp 9 still cannot The service life of the light emitting element 92 is effectively extended.

Utility model content

In order to improve the above-mentioned shortcomings of the existing lamps having poor heat dissipation effect, the utility model provides a lamp to further improve the overall heat dissipation effect, which is the main purpose of the invention.

In order to achieve the aforementioned purpose of the utility model, the technical means used in the utility model and the effects that can be achieved by means of the technical means include:

A lamp comprises a shell, a radiator, a light-emitting element, a cooling fan and a barrier ring. One end of the casing is provided with a light-transmitting part, the other end is provided with an electrical connection part, and an air inlet part and an air outlet part are respectively provided on the outer peripheral wall of the casing; the radiator is arranged inside the casing, and the radiator has a One side has a fixing part, and the other side forms several fins and an accommodating space adjacent to the air outlet part, and each of the fins has a first end and a second end respectively, and the first end faces to the side of the shell. The air inlet part, the second end faces the fixing part, and each of the fins is arranged around the periphery of the accommodating space; the light emitting element is combined with the fixing part of the heat sink, and the light emitting element is aligned with the light-transmitting part of the housing part and is electrically connected to the electrical connection part; the heat dissipation fan is arranged in the accommodation space of the radiator; It has an air inlet hole, and the air inlet hole is aligned with the accommodating space of the radiator. In this way, the barrier ring can effectively reduce part of the air flow back toward the air inlet part and form a turbulence phenomenon, so that the external air flow introduced by the cooling fan can smoothly transfer heat to the outside space through the air outlet part, thereby achieving Improve the effect of heat dissipation.

The outer diameter of the barrier ring of the lamp can be larger than the outer diameter of the heat sink; thereby, in order to reduce the gap between the inner peripheral wall of the housing and the outer peripheral edge of the first end of each fin, and then achieve more Further enhance the efficiency of heat dissipation.

The outer peripheral edge of the blocking ring of the lamp is axially extended to one side with a fitting portion, and the blocking ring is combined with the first end of each fin of the radiator through the fitting portion; thereby, it is convenient to install The barrier ring is assembled with the heat sink to achieve the effect of improving the convenience of assembly.

The outer peripheral edge of the barrier ring of the lamp extends a first joint part and a second joint part respectively in the axial direction to both sides, and the shell is composed of a first shell and a second shell. The first joint part and the second joint part can be used for the joint of the first shell and the second shell; thereby, the first shell and the second shell can clamp and fix the barrier ring together, so as to make the first shell The first casing, the second casing and the blocking ring have a more stable combination effect.

A buffer pad is provided in the accommodating space of the radiator of the lamp, and the cooling fan is combined with the buffer pad; thereby, the vibration generated during the working process of the cooling fan can be effectively reduced to achieve the effect of reducing noise.

One side of the blocking ring forms a blocking ring, the blocking ring extends toward the light-transmitting portion, and the blocking ring surrounds the outer periphery of each fin of the heat sink. Thereby, when the external airflow has not fully absorbed the heat conducted from the light-emitting element to the fins, it can be prevented from dissipating in the direction of the air outlet through the gaps of the fins, and the effect of improving the heat dissipation effect can also be achieved .

The outer peripheral edge of the barrier ring is integrally combined with the inner peripheral surface of the shell. Thereby, the convenience of overall assembly can be effectively improved.

Description of drawings

Figure 1: Assembled cutaway view of an existing luminaire.

Fig. 2: A three-dimensional exploded view of the lamp of the first embodiment of the present invention.

Fig. 3: A combined cross-sectional view of the lamp of the first embodiment of the present invention.

Fig. 4: A three-dimensional exploded view of the lamp of the second embodiment of the present invention.

Fig. 5: A combined sectional view of the lamp of the second embodiment of the present invention.

Fig. 6: A three-dimensional exploded view of the lamp of the third embodiment of the present invention.

Fig. 7: A combined sectional view of the lamp of the third embodiment of the present invention.

Fig. 8: A combined cross-sectional view of the lamp of the third embodiment of the present invention when the retaining ring is formed.

Fig. 9: A three-dimensional exploded view of the lamp of the fourth embodiment of the present invention.

Fig. 10: A combined cross-sectional view of the lamp of the fourth embodiment of the present invention.

Description of main component symbols:

1 shell 11 first shell 111 light-transmitting part 112 first joint part

113 Air outlet part 12 Second housing 121 Second joint part 122 Electrical connection part

123 Air intake part 124 Positioning column 2 Radiator 21 Fixed part

22 fins 221 first end 222 second end 223 positioning hole

224 Perforation 23 Accommodating space 24 Fixing element 25 Cushion pad

3 Light-emitting element 4 Cooling fan 5 Blocking ring 51 Air inlet hole

52 first through hole 53 second through hole 54 coupling element 6 barrier ring

61 Air inlet hole 62 Through hole 63 Fitting part 7, 7' barrier ring

71 Air inlet hole 72 Through hole 73 First joint part 74 Second joint part

75 retaining ring 8 barrier ring 81 air inlet hole 82 through hole

83 retaining ring 9 lamps 91 shell 911 light-transmitting part

912 Electrical connection part 913 Air inlet part 914 Air outlet part 92 Light emitting element

93 radiator 931 fins 932 accommodation space 94 cooling fan

Detailed ways

In order to make the above-mentioned and other purposes, features and advantages of the present utility model more obvious and easy to understand, the preferred embodiments of the present utility model are specially cited below, together with the accompanying drawings, for detailed description as follows:

Please refer to FIGS. 2 and 3 , the lamp of the first embodiment of the present invention includes a housing 1 , a heat sink 2 , a light emitting element 3 , a cooling fan 4 and a barrier ring 5 . in:

The casing 1 can be a hollow casing or a combination of several casings that are docked with each other, and the principle is that relevant components can be assembled inside the casing 1 . In this embodiment, the housing 1 is composed of a first shell 11 and a second shell 12 . One end of the first casing 11 is provided with a light-transmitting portion 111, and the other end forms a first joint portion 112, and the outer peripheral wall of the first casing 11 has an air outlet portion 113, which is preferably the air outlet portion 113. It is composed of several slots through the outer peripheral wall of the first housing 11; one end of the second housing 12 forms a second joint portion 121, and the other end is provided with an electrical connection portion 122, and the second housing 12 The outer peripheral wall of the body 12 has an air inlet 123, and the air inlet 123 is preferably formed by several through holes passing through the outer peripheral wall of the second housing 12; and the inner peripheral wall of the second housing 12 forms A plurality of positioning posts 124 each extend toward the direction of the second engaging portion 121 . Thereby, the first joint portion 112 of the first housing 11 and the second joint portion 121 of the second housing 12 can be engaged with each other to form the housing 1 .

The radiator 2 is disposed inside the casing 1, and the radiator 2 is made of heat-conducting material. One side of the heat sink 2 has a fixed portion 21, and the other side forms a plurality of fins 22 arranged at intervals in a ring and an accommodating space 23, each of the fins 22 is adjacent to the air outlet portion 113 of the housing 1, and Each of the fins 22 has a first end 221 and a second end 222 respectively, the first end 221 faces the air inlet portion 123 of the casing 1, the second end 222 faces the fixing portion 21, and each of the fins The sheet 22 is disposed around the accommodating space 23 . Also, a plurality of positioning holes 223 and a plurality of through holes 224 are respectively arranged on part of the fins 22 of the radiator 2, wherein the positioning holes 223 are formed in the first end 221 of the fins 22; The first end 221 penetrates to the second end 222, whereby several fixing elements 24 (such as screws, bolts or positioning pins, etc.) can be used to respectively penetrate each of the through holes 224, and then one end of each of the fixing elements 24 The positioning posts 124 fixed on the second casing 12 allow the radiator 2 to be fixed inside the casing 1 . In addition, a buffer pad 25 is preferably disposed in the accommodating space 23 .

The light-emitting element 3 is preferably selected from a light-emitting diode (LED), a light bulb or other components that can generate light after being energized. The light-emitting element 3 is combined with the fixing portion 21 of the heat sink 2, and the light-emitting element 3 faces the light-transmitting portion 111 of the housing 1, and can be electrically connected to the electrical circuit of the housing 1 by several power lines (not shown). Connecting part 122 .

The cooling fan 4 is combined in the accommodating space 23 of the radiator 2, and the cooling fan 4 is preferably combined on the buffer pad 25, so that the vibration generated by the cooling fan 4 can be reduced by using the buffer pad 25 , so as to achieve the function of reducing noise.

The barrier ring 5 is disposed inside the casing 1 and between the air inlet portion 123 and the radiator 2 . The center of the barrier ring 5 has an air inlet hole 51 axially penetrating, and the air inlet hole 51 is aligned with the accommodating space 23 of the radiator 2; The first through hole 52 and several second through holes 53, wherein each of the first through holes 52 can pass through the aforementioned fixing elements 24 respectively; Screws, bolts or positioning pins, etc.) are combined with each positioning hole 223 of the radiator 2 after being stretched, so that the barrier ring 5 is directly fixed to the first end 221 of each fin 22 of the radiator 2 . In addition, as shown in FIG. 3 , the outer diameter of the barrier ring 5 can preferably be designed to be larger than the outer diameter of the radiator 2, so as to reduce the inner peripheral wall of the housing 1 and the outer peripheral edge of the first end 221 of each fin 22. gap between each other.

In actual use, the lamp of the present utility model can be connected to a lamp holder (not shown) such as a wall, a ceiling or a table, etc. by means of the electrical connection part 122, so that the light-emitting element 3 can be energized to generate light by using a general power supply system. And through the light-transmitting part 111, the light is projected to the outside world. Furthermore, the light-transmitting part 111 can be designed to have different colors (such as green, yellow or red, etc.), so that the light-emitting element 3 can be illuminated by the light-transmitting part. 111 project lights of different colors. In addition, when the light-emitting element 3 generates heat due to electrification, the heat conduction effect of the fins 22 of the heat sink 2 and the work of the cooling fan 4 can be used to introduce the external airflow from the air inlet 123 and guide it. The external air flow passes through the air inlet holes 51 of the barrier ring 5 and the gaps between the fins 22 in sequence, and finally the external air flow passes through the air outlet portion 113 to transfer heat to the external space to achieve a predetermined heat dissipation effect.

Please refer to FIG. 3 , with the help of the design of the barrier ring 5, when the heat dissipation fan 4 introduces the external airflow from the air inlet portion 123, and guides the external airflow through the air inlet hole 51 of the barrier ring 5 After entering the accommodating space 23, the blocking ring 5 can be used to effectively block part of the airflow passing through the gap between the first ends 221 of any two adjacent fins 22, so as to prevent the partial airflow with heat from moving toward the air inlet portion 123. directional reflow and form a turbulence phenomenon, so that the external airflow can smoothly transfer heat to the external space through the air outlet 113, thereby improving the overall heat dissipation effect of the radiator 2 and the cooling fan 4, so as to effectively prolong the use of the light emitting element 3 life.

Please refer to Figures 4 and 5, the lamp of the second embodiment of the present invention also includes a housing 1, a heat sink 2, a light emitting element 3, a heat dissipation fan 4 and a barrier ring 6, wherein the housing 1, heat dissipation The overall structure of the radiator 2, the light emitting element 3 and the cooling fan 4 is the same as that of the aforementioned first embodiment (only the radiator 2 omits the design of the positioning hole 223), so it will not be repeated. In addition, the barrier ring 6 is also disposed inside the casing 1 and between the air inlet portion 123 and the radiator 2; the barrier ring 6 has an air inlet hole 61, and the air inlet hole 61 is opposite to the radiator 2; the barrier ring 6 is provided with several through holes 62 around the air inlet hole 61, and each of the through holes 62 can pass through the aforementioned fixing elements 24; A fitting portion 63 extends from the edge to one side in the axial direction, whereby the blocking ring 6 can be combined with the first end 221 of each fin 22 of the heat sink 2 by using the fitting portion 63, so as to facilitate the blocking The ring 6 is assembled with the heat sink 2 . In this way, the lamp of the second embodiment of the present invention can also use the design of the barrier ring 6 to reduce the flow of part of the air flow towards the air inlet 123 through the gap between the first ends 221 of any two adjacent fins 22 directional backflow and form a turbulence phenomenon, thereby effectively improving the overall heat dissipation effect of the radiator 2 and the cooling fan 4 .

Please refer to Figures 6 and 7, the lamp of the third embodiment of the present invention also includes a housing 1, a heat sink 2, a light emitting element 3, a heat dissipation fan 4 and a barrier ring 7, wherein the housing 1, heat dissipation The overall structure of the radiator 2, the light emitting element 3 and the cooling fan 4 is the same as that of the aforementioned first embodiment (only the radiator 2 omits the design of the positioning hole 223), so it will not be repeated. In addition, the blocking ring 7 is located between the air inlet portion 123 and the radiator 2; the blocking ring 7 has an air inlet hole 71, and the air inlet hole 71 is aligned with the accommodating space 23 of the radiator 2; The ring 7 is also provided with several through holes 72 around the air inlet hole 71, and each of the through holes 72 can respectively pass through the above-mentioned fixing elements 24; again, the outer peripheral edge of the barrier ring 7 extends towards both sides in the axial direction. A first joint portion 73 and a second joint portion 74 are provided. Thereby, the first joint portion 112 of the first shell 11 can be directly combined with the first joint portion 73 of the barrier ring 7 in a manner such as clamping, buckling or screwing, while the second shell 12 The second joint portion 121 can also be directly coupled to the second joint portion 74 of the barrier ring 7 in a manner such as clamping, buckling or screwing. Overall, the barrier ring 7 can be combined with the first housing 11 and the second housing 12, and the first housing 11 and the second housing 12 can also clamp and fix the barrier ring 7 together, so that the The first casing 11 , the second casing 12 and the blocking ring 7 have a more stable combination effect. In this way, the lamp of the third embodiment of the present invention can also use the design of the barrier ring 7 to reduce part of the airflow passing through the gap between the first ends 221 of any two adjacent fins 22 toward the direction of the air inlet 123 The flow is recirculated and a turbulence phenomenon is formed, thereby effectively improving the overall heat dissipation effect of the radiator 2 and the heat dissipation fan 4 .

Also, please refer to FIG. 8 , taking the aforementioned lamp of the third embodiment as an example, to reveal another preferred implementation structure state of the blocking ring 7 ′, wherein one side of the blocking ring 7 ′ forms a blocking ring 75, the baffle ring 75 extends a predetermined distance toward the light-transmitting portion 111 in the axial direction of the cooling fan 4 , for example: when the baffle ring 75 extends toward the light-transmitting portion 111 , in the axial direction of the cooling fan 4 On, preferably slightly beyond one side end of the heat dissipation fan 4 (the side end refers to the end of the heat dissipation fan 4 adjacent to the air inlet hole 71); or, in the axial direction of the heat dissipation fan 4, the retaining ring 75 It can also extend to about one half of the radiator 2; therefore, the external airflow can still pass through the gaps of the fins 22 smoothly, and the retaining ring 75 can surround the fins 22 of the radiator 2 outer perimeter. In this way, when the cooling fan 4 introduces the external airflow from the air inlet portion 123 and guides the external airflow into the accommodating space 23 through the air inlet hole 71 of the barrier ring 7 ′, the barrier ring 7 ′ can be used to 'Effectively block part of the airflow from passing through the gap between the first ends 221 of any two adjacent fins 22, and prevent the external airflow from passing through when the heat conducted from the light-emitting element 3 to each of the fins 22 has not been fully absorbed. The gaps between the fins 22 spread toward the air outlet 113 (please refer to the area marked a in Figure 8), therefore, the overall heat dissipation effect of the heat sink 2 and the cooling fan 4 can be effectively improved to extend the light emitting element 3 service life. In addition, the retaining ring 75 disclosed in this embodiment can also be applied to the lamps of the aforementioned first and second embodiments.

9 and 10, the lamp of the fourth embodiment of the present invention also includes a housing 1, a heat sink 2, a light emitting element 3, a heat dissipation fan 4 and a barrier ring 8, wherein the housing 1, heat dissipation The overall structure of the radiator 2, the light emitting element 3 and the cooling fan 4 is the same as that of the aforementioned first embodiment (only the radiator 2 omits the design of the positioning hole 223), so it will not be repeated. In addition, the blocking ring 8 is located between the air inlet portion 123 and the radiator 2; the blocking ring 8 has an air inlet hole 81, and the air inlet hole 81 is aligned with the accommodating space 23 of the radiator 2; The ring 8 is also provided with a plurality of through holes 82 around the air inlet hole 81 , and each of the through holes 82 can allow the aforementioned fixing elements 24 to pass through.

The difference between the barrier ring 8 of the fourth embodiment of the present utility model and the barrier rings 5, 6, 7, 7' of the foregoing embodiments is that the outer peripheral edge of the barrier ring 8 can be integrally combined with the inner peripheral surface of the shell 1 , that is, the shell 1 and the barrier ring 8 can be made by integral molding; in a preferred embodiment as shown in FIG. 9 , the barrier ring 8 is integrally formed on the first housing 11 Therefore, compared with the lamps of the aforementioned first, second and third embodiments, the lamp of the fourth embodiment of the present utility model undoubtedly has better assembly convenience. In addition, in this embodiment, a baffle ring 83 can also be formed on one side of the barrier ring 8, and the baffle ring 83 surrounds the outer periphery of each fin 22 of the heat sink 2, and can also avoid that the external airflow is not sufficient. When absorbing the heat transmitted from the light-emitting element 3 to each of the fins 22 , it is dissipated toward the air outlet 113 through the gaps of each of the fins 22 , so as to achieve a better heat dissipation effect.

As mentioned above, the lamps of the present utility model can indeed utilize the barrier effect formed by the barrier rings 5, 6, 7, 7', 8 to reduce the return of part of the hot air flow towards the direction of the air inlet 123 and form the turbulence phenomenon. The external airflow introduced by the heat dissipation fan 4 can smoothly transfer heat to the external space through the air outlet portion 113 to further improve the heat dissipation effect, thereby effectively increasing the service life of the light emitting element 3 .

Claims (15)

1, a kind of light fixture is characterized in that, comprises:

A shell, an end are provided with a transmittance section, and the other end is provided with an electrical connection section, and the periphery wall of this shell has an inlet section and an outlet section respectively;

A radiator, be arranged at this enclosure, this radiator one side has a fixed part, opposite side forms several fins and accommodation space of contiguous this outlet section, respectively this fin has one first end and one second end respectively, this first end is towards the inlet section of this shell, and this second end is towards this fixed part, and respectively this fin around the periphery that is arranged at this accommodation space;

A light-emitting component is incorporated into the fixed part of this radiator, and this light-emitting component is towards the transmittance section of this shell and be electrically connected to this electrical connection section;

A radiator fan is arranged in the accommodation space of this radiator; And

A barrier ring is arranged at the inside of this shell and between this inlet section and this radiator, this barrier ring has an inlet air hole, and this inlet air hole is relative with the accommodation space position of this radiator.

2, light fixture as claimed in claim 1 is characterized in that, the external diameter of this barrier ring is greater than the external diameter of this radiator.

3, light fixture as claimed in claim 2, it is characterized in that, the internal perisporium of this shell forms several reference columns, this barrier ring is provided with several first through holes in this inlet air hole periphery, the part fin of this radiator is provided with several perforation, and this perforation is through to second end by first end of this fin, and other is provided with respectively this perforation that stretches through respectively of several retaining elements and reaches respectively this first through hole, respectively an end of this retaining element is fixed in respectively this reference column, and respectively this retaining element is fixed this radiator in this enclosure.

4, light fixture as claimed in claim 3, it is characterized in that, the part fin of this radiator is provided with locating hole, this barrier ring is provided with several second through holes in this inlet air hole periphery, other is provided with several binding members respectively this second through hole that stretches through, and respectively an end of this binding member is incorporated into respectively this locating hole, and respectively this binding member is fixed first end of this barrier ring in each fin of this radiator.

5, light fixture as claimed in claim 1 is characterized in that, the outer peripheral edges of this barrier ring are axially to extend a fit portion towards a side, and this barrier ring is incorporated into first end of each fin of this radiator with this fit portion.

6, light fixture as claimed in claim 5, it is characterized in that, the internal perisporium of this shell forms several reference columns, this barrier ring is provided with several through holes in this inlet air hole periphery, the part fin of this radiator is provided with perforation, and this perforation is through to second end by first end of this fin, and other is provided with several retaining elements stretch through respectively respectively this perforation and this through hole respectively, respectively an end of this retaining element is incorporated into respectively this reference column, and respectively this retaining element is fixed this radiator in this enclosure.

As claim 1,2,3,4,5 or 6 described light fixtures, it is characterized in that 7, a side of this barrier ring forms a baffle ring, this baffle ring extends towards this transmittance section direction, and this baffle ring is around the neighboring of each fin of this radiator.

8, as claim 1,2,3,4,5 or 6 described light fixtures, it is characterized in that the outer peripheral edges one of this barrier ring is incorporated into the inner peripheral surface of this shell.

As claim 1,2,3,4,5 or 6 described light fixtures, it is characterized in that 9, this shell is made up of one first housing and one second housing.

As claim 1,2,3,4,5 or 6 described light fixtures, it is characterized in that 10, a cushion pad is set in the accommodation space of this radiator, and this radiator fan is in conjunction with this cushion pad.

11, a kind of light fixture is characterized in that, comprises:

A shell, formed by one first housing and one second housing, one end of this first housing is provided with a transmittance section, the other end forms one first junction surface, and the periphery wall of this first housing has an outlet section, one end of this second housing forms one second junction surface, and the other end is provided with an electrical connection section, and the periphery wall of this second housing has an inlet section;

A radiator, be arranged at this enclosure, this radiator one side has a fixed part, opposite side forms several fins and accommodation space of contiguous this outlet section, respectively this fin has one first end and one second end respectively, this first end is towards the inlet section of this shell, and this second end is towards this fixed part, and respectively this fin around the periphery that is arranged at this accommodation space;

A light-emitting component is incorporated into the fixed part of this radiator, and this light-emitting component is towards the transmittance section of this shell and be electrically connected to this electrical connection section;

A radiator fan is arranged in the accommodation space of this radiator; And

Form the barrier ring that intercepts between first end that makes this fin respectively and this inlet section, be arranged at the inside of this shell and between this inlet section and this radiator, this barrier ring has an inlet air hole, this inlet air hole is relative with the accommodation space position of this radiator, the outer peripheral edges of this barrier ring are axially to extend one first joint portion and one second joint portion respectively towards both sides in addition, this first joint portion combines with first junction surface of this first housing, and this second joint portion combines with second junction surface of this second housing.

12, light fixture as claimed in claim 11, it is characterized in that, the second housing internal perisporium of this shell forms several reference columns, this barrier ring is provided with several through holes in this inlet air hole periphery, the part fin of this radiator is provided with several perforation, and this perforation is through to second end by first end of this fin, and other is provided with respectively this perforation that stretches through respectively of several retaining elements and reaches respectively this through hole, respectively an end of this retaining element is fixed in respectively this reference column, and respectively this retaining element is fixed this radiator in this enclosure.

As claim 11 or 12 described light fixtures, it is characterized in that 13, a side of this barrier ring forms a baffle ring, this baffle ring extends towards this transmittance section direction, and this baffle ring is around the neighboring of each fin of this radiator.

14, as claim 11 or 12 described light fixtures, it is characterized in that the outer peripheral edges one of this barrier ring is incorporated into the inner peripheral surface of this shell.

As claim 11 or 12 described light fixtures, it is characterized in that 15, a cushion pad is set in the accommodation space of this radiator, and this radiator fan is in conjunction with this cushion pad.

Images