CN111578238A

CN111578238A - Lamp fitting

Info

Publication number: CN111578238A
Application number: CN202010464882.2A
Authority: CN
Inventors: 周明杰; 刘月舫
Original assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Current assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-08-25

Abstract

The embodiment of the invention discloses a lamp. The lamp comprises a radiating shell, a light distribution module and a dimming drive, wherein the radiating shell is used for radiating the light distribution module, the light distribution module comprises a light emitting element, and the dimming drive is electrically connected with the light emitting element; the circumference of heat dissipation casing is provided with the erection column, the one end and the heat dissipation casing fixed connection of erection column, the other end and the jib subassembly of erection column or inhale a subassembly and be connected, and the erection column is kept away from heat dissipation casing one side and is provided with the installation piece, and the installation piece is used for being connected with the spring buckle. Above-mentioned lamps and lanterns, the circumference that adopts at the heat dissipation casing sets up the erection column, and this erection column can be connected in order to realize the jib formula installation of lamps and lanterns with the jib subassembly, and this erection column can be connected in order to realize the ceiling type installation of lamps and lanterns with the ceiling type subassembly, and this erection column can be connected in order to realize the embedded installation of lamps and lanterns with the spring buckle to the mounting means of lamps and lanterns has been richened, can satisfy the installation under the different installation conditions fixed.

Description

Lamp fitting

Technical Field

The invention relates to the field of illumination, in particular to a lamp.

Background

When the lamp is used, the lamp needs to be installed and fixed firstly, and the installation and fixing modes mainly comprise an embedded type, a hanging rod type and a ceiling type. At present, most of the conventional lamps only have one installation and fixation mode, and therefore, a lamp satisfying the three installation and fixation modes needs to be researched and developed urgently.

Disclosure of Invention

The invention aims to provide a lamp for solving the technical problem of single installation and fixing mode of the traditional lamp when the lamp is used for lighting.

In order to solve the technical problems, the invention adopts the technical scheme that:

a lamp comprises a heat dissipation shell, a light distribution module and a dimming drive, wherein the heat dissipation shell is used for dissipating heat of the light distribution module, the light distribution module comprises a light emitting element, and the dimming drive is electrically connected with the light emitting element;

the circumference of heat dissipation casing is provided with the erection column, the one end of erection column with heat dissipation casing fixed connection, the other end and the jib subassembly of erection column or inhale a subassembly and be connected, the erection column is kept away from heat dissipation casing one side is provided with the installation piece, the installation piece is used for being connected with the spring buckle.

The embodiment of the invention has the following beneficial effects:

above-mentioned lamps and lanterns, the circumference that adopts at the heat dissipation casing sets up the erection column, and this erection column can be connected in order to realize the jib formula installation of lamps and lanterns with the jib subassembly, and this erection column can be connected in order to realize the ceiling type installation of lamps and lanterns with the ceiling type subassembly, and this erection column can be connected in order to realize the embedded installation of lamps and lanterns with the spring buckle to the mounting means of lamps and lanterns has been richened, can satisfy the installation under the different installation conditions fixed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram of a lamp in one embodiment.

FIG. 2 is a front view of a heat dissipation housing in one embodiment.

Fig. 3 is a perspective axial view of the heat dissipation housing shown in fig. 1.

Fig. 4 is an enlarged schematic view of a portion a in fig. 2.

Fig. 5 is another perspective axial view of the heat dissipation housing shown in fig. 1.

FIG. 6 is a schematic view of a lens with a lens angle of 45 in one embodiment.

Fig. 7 is a half sectional view of the lens shown in fig. 6.

FIG. 8 is a schematic view of a lens with a lens angle of 90 in one embodiment.

Fig. 9 is a half sectional view of the lens shown in fig. 8.

Fig. 10 is a schematic spatial structure diagram of a light distribution module in one embodiment.

Fig. 11 is a half sectional view of the light distribution module shown in fig. 10.

Fig. 12 is an enlarged view of the portion B in fig. 11.

Fig. 13 is a schematic spatial structure diagram of a light distribution module in another embodiment.

Fig. 14 is a light distribution curve of a light distribution module having a lens angle of 45 °.

Fig. 15 shows the illuminance at three meters of the light distribution module shown in fig. 10.

Fig. 16 shows the light distribution UGR of the light distribution module shown in fig. 10.

Fig. 17 is a schematic spatial structure diagram of a light distribution module in another embodiment.

Fig. 18 is a schematic spatial structure diagram of a light distribution module in another embodiment.

Fig. 19 is a light distribution curve of a light distribution module having a lens angle of 90 °.

Fig. 20 shows the illuminance at three meters of the light distribution module shown in fig. 13.

FIG. 21 is a schematic view of a lamp and hanger assembly connection according to one embodiment.

Fig. 22 is a schematic view of the hanger bar of fig. 21.

FIG. 23 is a schematic view of a lamp and ceiling assembly in one embodiment.

Figure 24 is a schematic view of the suction tip member of figure 23.

FIG. 25 is a schematic view of one embodiment of a light fixture with spring snap and front panel connection.

Fig. 26 is a schematic view of the spring catch of fig. 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to fig. 26, a lamp 10 according to the present invention will now be described. The lamp 10 includes a heat dissipation housing 100, a light distribution module 200, and a dimming driver 300, where the heat dissipation housing 100 is used to dissipate heat from the light distribution module 200, the light distribution module 200 includes a light emitting element 220, and the dimming driver 300 is electrically connected to the light emitting element 220. The circumference of the heat dissipation housing 100 is provided with a mounting column 400, one end of the mounting column 400 is fixedly connected with the heat dissipation housing 100, the other end of the mounting column 400 is connected with a suspender component 410 or a ceiling component 420, one side of the mounting column 400 far away from the heat dissipation housing 100 is provided with a mounting block 430, and the mounting block 400 is used for being connected with a spring buckle 440. The mounting post 400 can be coupled with a hanger assembly 410 to enable hanger bar mounting of the light fixture 10. The mounting post 400 can be coupled to a ceiling assembly 420 to enable ceiling mounting of the light fixture 10. The mounting post 400 can be connected with the spring buckle 440 to realize the embedded mounting of the lamp 10, thereby enriching the mounting manner of the lamp and satisfying the mounting and fixing under different mounting conditions.

With reference to fig. 2 to 5, further, the heat dissipation housing 100 has a first surface 101 and a second surface 102 oppositely disposed along a first direction, the light distribution module 200 is attached to the first surface 101, and the second surface 102 is provided with a plurality of sets of fins. At least one fin in other fin groups is arranged between adjacent fins in each fin group. I.e., fins in the same set of fins are not adjacent. Further, the tops 103 of the fins in the same fin group are equidistant from the second surface 102, and the tops 103 of the fins in different fin groups are unequal from the second surface 102. In this embodiment, the top 103 of each fin group is parallel to the second surface 102.

Further, the fins in each fin group have a first end 104 close to the axis of the heat dissipation housing 100 and a second end 105 away from the axis. The first ends 104 of the different sets of fins are at unequal distances from the axis, i.e., at different distances from the axis. The first ends 104 in different sets of fins are formed with different chamfers, i.e., the chamfers are different in shape. The second ends 105 of the different sets of fins are at unequal distances from the axis. Through the arrangement of the fin groups, air can generate turbulent flow in the flow channel formed between the fins in each fin group and the second surface 102, and the heat dissipation effect of the light distribution module 200 is improved.

Further, each fin group at least comprises two types of fins, and the distance from the first end 104 to the axis in each type of fin is at least different from that in the chamfer. Specifically, in the present embodiment, the number of the fin groups is three, and the fin groups include a first fin group, a second fin group, and a third fin group. The fins in each fin group are distributed along the circumference of the heat dissipation housing 100. The first set of fins includes a first type of fins 110 and a second type of fins 120. The second set of fins includes a third type of fins 130 and a fourth type of fins 140. The third set of fins includes a fifth type of fins 150, a sixth type of fins 160, and a seventh type of fins 170.

Further, both sides of the first type fins 110 and both sides of the second type fins 120 are provided with the fifth type fins 150, both sides of the first type fins 110 are provided with the third type fins 130 by spacing one of the fifth type fins 150, both sides of the second type fins 120 are provided with the fourth type fins 140 by spacing one of the fifth type fins 150, and by the above arrangement, a plurality of adjacent third type fins 130 and fourth type fins 140 are formed, and the sixth type fins 160 and the seventh type fins 170 are alternately arranged between each adjacent third type fins 130 and fourth type fins 140. For example, it is assumed that the sixth type fins 160 are disposed between adjacent third type fins 130 and fourth type fins 140, the seventh type fins 170 are disposed between next adjacent third type fins 130 and fourth type fins 140, and the sixth type fins 160 are disposed between next adjacent third type fins 130 and fourth type fins 140.

Further, the distance of the first ends 104 of the various types of fins from the axis satisfies the following relationship:

L₅＞L₃＝L₄＞L₁＞L₆＝L₇＞L₂wherein L is₁Refers to the distance, L, of the first end 104 of the first type of fin 110 from the axis₂Refers to the distance, L, of the first ends 104 of the second type fins 120 from the axis₃Refers to the distance, L, of the first ends 104 of the third type fins 130 from the axis₄Refers to the distance, L, from the axis of the first ends 104 of the fourth type fins 140₅Refers to the distance, L, from the axis of the first ends 104 of the fifth type fins 150₆Refers to the distance, L, from the axis of the first ends 104 of the sixth type of fins 160₇Refers to the distance of the first end 104 of the seventh type of fin 170 from the axis. Specifically, in the present embodiment, L₁＝37mm，L₂＝26mm，L₃＝40，L₄＝40，L₅＝50mm，L₆＝30mm，L₇＝30。

Further, the distance from the top 103 in each fin group to the heat dissipation housing 100 satisfies the following relationship:

H₁＞H₃＞H₂wherein H is₁Refers to the distance, H, from the top 103 of the first set of fins to the second surface 102₂Refers to the distance, H, from the top 103 of the second set of fins to the second surface 102₃Refers to the distance from the top 103 of the third set of fins to the second surface 102. Specifically, in the present embodiment, H₂＝H₁-5mm，H₃＝H₁-2mm。

As shown in fig. 4, further, the chamfer of the first type fin 110 includes a first end surface 111, the first end surface 111 is perpendicular to the second surface 102, and the top 103 of the first type fin 110 is in arc transition with the first end surface 111. The chamfer of the second type fin 120 comprises a first end surface 121 and a third end surface 122 which are sequentially connected, the first end surface 121 is perpendicular to the second surface 102, the third end surface 122 is obliquely arranged relative to the second surface 102, and the top 103 of the second type fin 120 is in arc transition with the third end surface 122. The chamfer of the third type fin 130 comprises a fourth end surface 131 and a fifth end surface 132 which are sequentially connected, the fourth end surface 131 is perpendicular to the second surface 102, the fifth end surface 132 is obliquely arranged relative to the second surface 102, and the top 103 of the third type fin 130 is in arc transition with the fifth end surface 132. The chamfer of the fourth type fin 140 includes a sixth end surface 141, the sixth end surface 141 is obliquely arranged relative to the second surface 102, and the top 103 of the fourth type fin 140 is in arc transition with the sixth end surface 141. The chamfer of the fifth type fin 150 comprises a seventh end surface 151 and an eighth end surface 152 which are sequentially connected, wherein the seventh end surface 151 is perpendicular to the second surface 102, the eighth end surface 152 is obliquely arranged relative to the second surface 102, and the top 103 of the fifth type fin 150 is in arc transition with the eighth end surface 152. The chamfer of the sixth type of fin 160 includes a ninth end surface 161 and a tenth end surface 162 connected in sequence, the ninth end surface 161 is perpendicular to the second surface 102, the tenth end surface 162 is obliquely arranged relative to the second surface 102, and the top 103 of the sixth type of fin 160 is in arc transition with the tenth end surface 162. The chamfer of the seventh type fin 170 comprises an eleventh end surface 171 and a twelfth end surface 172 which are sequentially connected, wherein the eleventh end surface 171 is perpendicular to the second surface 102, the twelfth end surface 172 is obliquely arranged relative to the second surface 102, and the top 103 of the seventh type fin 170 is in arc transition with the twelfth end surface 172. The distances from the tips of the first end surface 111, the first end surface 121, the fourth end surface 131, the seventh end surface 151, the ninth end surface 161, and the eleventh end surface 171 to the second surface 102 are not all the same. The third end surface 122, the fifth end surface 132, the sixth end surface 141, the eighth end surface 152, the tenth end surface 162, and the twelfth end surface 172 do not all have the same inclination angle.

In this embodiment, the various fins extend along the radial direction of the heat dissipation housing 100. All the fins are uniformly distributed by taking the axis as an axis. The first fin group includes two first type fins 110 and two second type fins 120, and the two first type fins 110 and the two second type fins 120 are uniformly distributed and spaced with the axis as the axis, and equally divide the second surface. The first surface 101 is provided with a first groove 106 to form a first protrusion 107 on the second surface 102, the bottoms of the various fins are attached to the first protrusion 107, and the second ends 105 of the various fins extend from the first protrusion 107 to the outer edge of the second surface 102. The light distribution module 200 is attached to the bottom of the first groove 106.

Specifically, the distance of the second ends 105 of the various types of fins from the axis satisfies the following relationship:

l₁＞l₃＝l₄＞l₅＞l₆＝l₇＞l₂wherein l is₁Refers to the distance, l, of the second end 105 of the first type of fin 110 from the axis₂Refers to the distance, l, of the second ends 105 of the second type fins 120 from the axis₃Refers to the distance, l, from the second end 105 of the third type fin 130 to the axis₄Refers to the distance, l, from the second end 105 of the fourth type of fin 140 to the axis₅Refers to the distance, l, from the second end 105 of the fifth type of fin 150 to the axis₆Refers to the distance, l, from the second end 105 of the sixth type of fin 160 to the axis₇Refers to the distance of the second end 105 of the seventh type of fin 170 from the axis. Specifically, in the present embodiment,/₁＝75mm，l₂＝47.5mm，l₃＝68mm，l₄＝68mm，l₅＝66mm，l₆＝65mm，l₇＝65mm。

In this embodiment, the second surface 102 is further provided with a plurality of connection posts 500, and the connection posts 500 are used for mounting the dimming driver 300. In this embodiment, the connection column 500 is a threaded column, and the dimming driver 300 is fixed on the connection column 500 by a first bolt.

Referring to fig. 6 to 20, the light distribution module 200 further includes a first mounting plate 230 and a second mounting plate 240 disposed opposite to each other along the first direction, and a plurality of lenses 210, wherein the lenses 210 are disposed on the first mounting plate 230, and the second mounting plate 240 is used for mounting the light emitting element 220. Specifically, the lens 210 is used for controlling the light distribution of the light emitted from the light emitting element 220, and in this embodiment, the light emitting element 220 is an LED lamp 220, but it should be understood that in other embodiments, the light emitting element 220 may also be an element capable of emitting light by temperature radiation or other light emitting forms. The lens 210 is made of optical PC.

Further, the lens angle of the lens 210 is less than 90 °. Specifically, the lens 210 includes a first curved surface 211 and a second curved surface 212. The first curved surface 211 is disposed at one side of the lens 210 to allow light emitted from the light emitting element 220 to enter the lens 210, the first curved surface 211 is formed by a first curve rotating around the optical axis OO' of the lens 210, a second groove 213 is formed in the lens 210, and the second groove 213 is used to accommodate the light emitting element 220. The second curved surface 212 is disposed on the other side of the lens 210 to transmit light incident from the first curved surface 211, and the first curved surface 211 is formed by rotating the second curved surface one turn around the optical axis OO' of the lens 210. That is, the light emitted from the light emitting element 220 passes through the first curved surface 211 and the second curved surface 212 in sequence and then is transmitted out of the lens 210. Further, the curvature of the first curved surface 211 is different from the curvature of the second curved surface 212. Because of the optical path difference, the optical path is deflected to different degrees, the original optical path distribution is changed, and a new transmission angle is formed, so that the lens angle of the lens 210 is smaller than 90 degrees, the lighting effect of the light-emitting element 220 is improved, the light intensity in a large angle is reduced, the glare is effectively reduced, and the lighting comfort is better. In this embodiment, the first direction is parallel to the optical axis OO'.

Referring to fig. 6 and 7 together, in one embodiment, the first curve satisfies the following formula: y is-0.0016X 3+ 0.0652X 2-0.0049X-2.7497, wherein X is more than or equal to 0 and less than or equal to 7.2; the second curve satisfies the following formula: y is 0.0049X ^3+ 0.0764X ^2+ 0.0160X-10.0157, wherein X is not less than 0 and not more than 8, and the lens angle of the obtained lens 210 is 45 degrees. Further, the lens 210 further includes a mounting surface 114, the optical axis OO' is coaxial with the mounting surface 214, in this embodiment, the mounting surface 214 is a cylindrical surface, and an outer edge of the second curved surface 212 forms one end of the mounting surface 214. The other end of the mounting surface 214 is connected to the outer edge of the first curved surface 211 via a circular ring surface 215, and the circular ring surface 215 is coaxial with the optical axis OO'.

Referring to fig. 8 and 9 together, in another embodiment, the first curve satisfies the following formula: y is-0.0019X 3+ 0.0650X 2-0.0021X-2.7077, wherein X is more than or equal to 0 and less than or equal to 5.8; the second curve satisfies the following formula: y is 0.0071X ^3+ 0.0229X ^2+ 0.0803X-6.9558, X is more than or equal to 0 and less than or equal to 7.2, and the lens angle of the obtained lens 210 is 45 degrees. Further, the lens 210 further includes a mounting surface 214, the optical axis OO' is coaxial with the mounting surface 214, in this embodiment, the mounting surface 214 is a cylindrical surface, and an outer edge of the second curved surface 212 forms one end of the mounting surface 214. The other end of the mounting surface 214 is connected to the outer edge of an annular surface 216, and the inner edge of the annular surface 216 is connected to the outer edge of the first curved surface 211 via a tapered surface.

Further, the first mounting plate 230 includes a first surface 231 and a second surface 232 which are oppositely disposed along the first direction, the first surface 231 is formed with a third groove 233, a plurality of through holes are formed at the bottom of the third groove 233, the through holes penetrate through the first mounting plate 230, and the lenses 210 are correspondingly disposed in the through holes. Specifically, the hole wall of the through hole matches with the mounting surface 214, the circular ring surface 215/the circular ring surface 216 is coplanar with the second surface 232, the second curved surface 212 protrudes out of the groove bottom of the third groove 233 and partially protrudes out of the first surface 231, that is, the lens 210 is partially accommodated in the third groove 233. The groove wall of the third groove 233 is a tapered surface and its diameter gradually increases along the optical path direction.

Further, a second mounting plate 240 is disposed on the second face 232. The second mounting plate 240 fits the bottom of the first groove 106. Specifically, the second surface 232 is formed with a fourth groove 2321, the second mounting plate 240 is received in the fourth groove 2321, a fourth groove is formed at the bottom of the fourth groove 2321, and the third groove 233 is formed with a second protrusion 234 at the bottom of the fourth groove, so as to form a receiving groove 235 between the groove wall of the fourth groove and the second protrusion 234. The receiving groove 235 is circular. The receiving groove 235 receives a sealing member. In this embodiment, the sealing member is a sealing ring. The seal member is used to seal between the first mounting plate 230 and the second mounting plate 240.

Further, the light emitting element 220 is disposed on the second mounting board 240 by a fixing member. The second protrusion 234 is circumferentially provided with an annular protrusion 2341 abutting on the second mounting plate 240 to set the light emitting element 220 at the origin of the first curve and the second curve. In this embodiment, the fixing member is a silicon-based circuit, and the light emitting device 220 protrudes from the second mounting board 240 through the mounting thereof, so that the light emitting device 220 is disposed at the origin of the first curve and the second curve by disposing the annular protrusion 2341 such that a gap is formed between the second mounting board 240 and the second protrusion 234. The receiving groove 235 is located outside of the annular protrusion 2341 and its inner seal seals between the annular protrusion 2341 and the second mounting plate 240.

As shown in fig. 10, in an embodiment, the lens angle of the lens 210 is 45 °, the plurality of lenses 210 are distributed on a plurality of rings coaxial with the third groove 233, the innermost ring is the first ring, each ring is provided with three 2n +1 lenses 210, n is the second ring, and the arrangement of the lenses 210 is loose, so that the lenses 210 emit light more uniformly while the positions of the wire holding grooves are reserved. Wire receiving channel 236 is located within third recess 233. In this embodiment, the light emitting element 220 is an LED lamp 220, the LED lamp 220 is an 5050LED lamp 220 with a color rendering index of 80 and a luminous efficiency of 170lm/W, and the power of the obtained light distribution module 200 is 50W. The obtained light distribution curve is shown in fig. 14. The obtained three-meter illuminance is shown in fig. 15, and it is understood from fig. 15 that the maximum illuminance at three meters of the light distribution module 200 is 688lx, and the obtained light distribution UGR is shown in fig. 16, and the maximum value of the light distribution UGR is 19 as shown in fig. 16.

As shown in fig. 13, in one embodiment, the lens angle of the lens 210 is 45 °, and the plurality of lenses 210 are distributed on a plurality of circular rings coaxial with the third grooves 233, and the arrangement of the lenses 210 is relatively loose. In this embodiment, the light emitting element 220 is an LED lamp 220, the LED lamp 220 is an 5050LED lamp 220 with a color rendering index of 80 and a luminous efficiency of 170lm/W, and the power of the obtained light distribution module 200 is 100W.

As shown in fig. 17, in an embodiment, the lens angle of the lens 210 is 90 °, the plurality of lenses 210 are distributed on a plurality of rings coaxial with the third groove 233, the innermost ring is the first ring, each ring is provided with three 2n +1 lenses 210, n is the second ring, and the arrangement of the lenses 210 is loose, so that the lenses 210 emit light more uniformly while preserving the position of the line accommodating groove 236. Wire receiving channel 236 is located within third recess 233. In this embodiment, the light emitting element 220 is an LED lamp 220, the LED lamp 220 is an 5050LED lamp 220 with a color rendering index of 80 and a luminous efficiency of 170lm/W, and the power of the obtained light distribution module 200 is 50W. The obtained light distribution curve is shown in fig. 19.

As shown in fig. 18, in one embodiment, the lens angle of the lens 210 is 90 °, and the plurality of lenses 210 are distributed on a plurality of circular rings coaxial with the third grooves 233, and the arrangement of the lenses 210 is relatively loose. In this embodiment, the light emitting element 220 is an LED lamp 220, the LED lamp 220 is an 5050LED lamp 220 with a color rendering index of 80 and a luminous efficiency of 170lm/W, and the power of the obtained light distribution module 200 is 100W. The obtained three-meter illuminance is shown in fig. 20, and it can be seen from fig. 20 that the maximum illuminance at three meters of the light distribution module 200 is 508 lx.

Referring to fig. 1, 21 and 22, in one embodiment, the light fixture 10 is mounted and secured by a hanger bar assembly 410. Specifically, the suspension rod assembly 410 includes a suspension rod 411 and a second bolt 412, the suspension rod 411 is bridged on the two mounting posts 400 through the second bolt 412, and an installation space of the dimming driving 300 is formed between the suspension rod 411 and the heat dissipation housing 100, so that the lamp body 10 is more compact, and the space for installing and fixing the lamp 10 is reduced. It is understood that in other embodiments, the hanger bar may be a split structure, i.e., the hanger bar assembly 410 includes two rod-like hanger bars, one for each of the two mounting posts 400.

Referring to fig. 1, 23 and 24, in another embodiment, the lamp 10 is fixed by a ceiling assembly 420. Specifically, the ceiling assembly 420 includes ceiling members 421 and third bolts 422, the ceiling members 421 are Z-shaped plates, in this embodiment, the number of the ceiling members 421 is two, and each ceiling member 421 is connected to each mounting post 400 through the third bolts 422 in one-to-one correspondence.

Referring to fig. 1, 25 and 26, in another embodiment, the lamp 10 is fixed by a snap fastener 440. Specifically, the spring catch 440 is connected to the mounting post 400 through the mounting block 430, the heat dissipation housing 100 is further provided with a front panel 600, and the spring catch 440 cooperates with the front panel 600 to embed the lamp 10 into a mounting position. The spring buckle 440 and the mounting block 430 can be connected through a threaded assembly, an embedded connection, a welding clamping connection and the like. The mounting post 400 is further provided with a stop 450, and the spring of the spring catch 440 cooperates with the stop 450 to generate elastic force.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. A lamp is characterized by comprising a heat dissipation shell, a light distribution module and a dimming drive, wherein the heat dissipation shell is used for dissipating heat of the light distribution module, the light distribution module comprises a light emitting element, and the dimming drive is electrically connected with the light emitting element;

2. The lamp according to claim 1, wherein the heat dissipation housing has a first surface and a second surface opposite to each other along a first direction, the light distribution module is attached to the first surface, and the second surface is provided with a plurality of sets of fins;

at least one fin in other fin groups is arranged between adjacent fins in each fin group;

distances from the tops of the fins in the same fin group to the second surface are equal, and distances from the tops in different fin groups to the second surface are unequal;

the fins in each fin group are provided with first ends close to the axis of the heat dissipation shell and second ends far away from the axis, the distances from the first ends in different fin groups to the axis are unequal, different chamfers are formed at the first ends in different fin groups, and the distances from the second ends in different fin groups to the axis are unequal.

3. The luminaire of claim 2 wherein each fin group comprises at least two types of fins, each type of fin having at least one of a different distance from said axis from said first end and a different distance from said chamfer.

4. A light fixture as recited in claim 3, wherein each type of fin extends radially of the heat sink housing.

5. A lamp as recited in claim 4, wherein the various types of fins are evenly distributed about the axis.

6. The lamp of claim 5, wherein the first surface is provided with a first groove to form a first protrusion on the second surface, wherein the bottom of each of the fins is attached to the first protrusion, and the second end of each of the fins extends from the first protrusion to the outer edge of the second surface;

the light distribution module is attached to the bottom of the first groove.

7. A lamp as recited in any one of claims 1-6, wherein the light distribution module further comprises a first mounting plate and a second mounting plate disposed opposite to each other along the first direction, and a plurality of lenses, the lenses being disposed on the first mounting plate, the second mounting plate being adapted to mount the light emitting elements, and the lenses being adapted to control the distribution of light emitted from the light emitting elements.

8. The light fixture of claim 7 wherein the lens has a lens angle of less than 90 °, the lens comprising:

a first curved surface disposed on one side of the lens, for allowing light emitted from the light emitting element to enter the lens, the first curved surface being formed by rotating a first curved line around an optical axis of the lens and forming a second recess in the lens, the second recess being for accommodating the light emitting element; and

and a second curved surface disposed on the other side of the lens, for transmitting light incident from the first curved surface, wherein the first curved surface is formed by rotating a second curved surface around the optical axis of the lens by one rotation, the curvature of the first curved surface is different from that of the second curved surface, and the first direction is parallel to the optical axis.

9. The luminaire of claim 8, wherein the first curve satisfies the following formula:

y is-0.0016X 3+ 0.0652X 2-0.0049X-2.7497, wherein X is more than or equal to 0 and less than or equal to 7.2;

the second curve satisfies the following formula:

y is 0.0049X ^3+ 0.0764X ^2+ 0.0160X-10.0157, wherein X is more than or equal to 0 and less than or equal to 8.

10. The luminaire of claim 8, wherein the first curve satisfies the following formula:

y is-0.0019X 3+ 0.0650X 2-0.0021X-2.7077, wherein X is more than or equal to 0 and less than or equal to 5.8;

the second curve satisfies the following formula:

Y＝0.0071*X^3+0.0229*X^2+0.0803*X-6.9558，0≤X≤7.2。