Lamp

Abstract

The utility model belongs to the technical field of lighting, and discloses a lamp which comprises a lampshade, a mounting seat, an upper lamp panel and a lower lamp panel. The mounting base comprises an upper base body and a lower base body which are arranged in the lampshade at intervals in the first direction, the opposite end faces of the upper base body and the lower base body are provided with an upper lamp panel and a lower lamp panel respectively, and the opposite end faces of the upper base body and the lower base body are provided with a plurality of first cooling fins distributed at intervals and a plurality of second cooling fins distributed at intervals respectively. The lower base body is provided with an air inlet channel, the lampshade is provided with an air outlet channel, and the first cooling fins and the second cooling fins are arranged between the air inlet channel and the air outlet channel. According to the lamp, when cold air enters through the air inlet channel and is exhausted through the air outlet channel, the cold air can take away heat of the first cooling fins and the second cooling fins, so that the heat dissipation effect is improved; the upper lamp panel and the lower lamp panel are arranged on the upper base body and the lower base body correspondingly so that the first cooling fins can dissipate heat of the upper lamp panel, and the second cooling fins can dissipate heat of the lower lamp panel.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting technical field especially relates to a lamp. BACKGROUND

[0002] A kind of LED lamp structure of up and down light emission in prior art, it includes transparent cover, radiator, upper light plate and lower light plate. Among them, radiator, upper light plate and lower light plate are all arranged in transparent cover, upper light plate is arranged on the upper end surface of radiator, the lower end surface of radiator is provided with multiple radiating fins, and lower light plate is arranged below radiator. In the structure, upper light plate and lower light plate share a radiator for heat dissipation, the heat of lower light plate cannot be directly transmitted to strip-shaped radiating fin, resulting in poor heat dissipation effect, and air circulation channel is not formed inside transparent cover, resulting in low heat dissipation efficiency of strip-shaped radiating fin. SUMMARY

[0003] The utility model discloses a kind of lamps, which can effectively improve heat dissipation efficiency.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] Lamp, including lampshade, mounting seat, upper light plate and lower light plate, the mounting seat includes the upper seat body and the lower seat body that are spaced apart in the lampshade along the first direction, the end face of the upper seat body and the lower seat body is respectively installed the upper light plate and the lower light plate, the end face of the upper seat body and the lower seat body is respectively provided with multiple first radiating fins and multiple second radiating fins that are spaced apart;

[0006] The lower seat body is provided with air inlet channel, the lampshade is provided with air outlet channel, the first radiating fin and the second radiating fin are arranged between the air inlet channel and the air outlet channel, and cold air enters the air inlet channel along the first direction and is discharged through the air outlet channel.

[0007] As an optional solution, the lampshade includes cover body and annular blocking portion arranged in the cover body, the upper end of the annular blocking portion along the first direction is connected with the cover body by first connecting rib, the lower end of the annular blocking portion along the first direction is connected with the upper seat body, the outer wall of the annular blocking portion and the inner wall of the cover body form the air outlet channel, and the upper light plate is located in the annular blocking portion.

[0008] As an optional solution, the lamp further includes air outlet cover arranged at the outlet of the air outlet channel, the air outlet cover is arranged between the cover body and the annular blocking portion, and the air outlet cover is provided with a plurality of air outlet holes.

[0009] As an option, the annular blocking part is tapered, and the cross-sectional area of the annular blocking part gradually decreases from the upper seat body to the lower seat body.

[0010] As an option, the lower seat body comprises a cylinder and an annular plate connected to each other along the first direction, the cylinder is provided with the air inlet channel, the annular plate is arranged at the edge of the cylinder facing the upper seat body, a plurality of the second heat sinks are arranged at the upper end surface of the annular plate away from the cylinder and located at the bottom of the air outlet channel, and the lower lamp plate is arranged at the lower end surface of the annular plate facing the cylinder.

[0011] As an option, the upper seat body comprises a seat plate, the seat plate is arranged at the lower end surface of the cylinder, a plurality of the first heat sinks are arranged at the lower end surface of the seat plate facing the cylinder, and the upper lamp plate is arranged at the upper end surface of the seat plate away from the cylinder.

[0012] As an option, an air inlet cover is arranged at the inlet of the air inlet channel, the air inlet cover is arranged at the lower end of the cylinder, and the air inlet cover is provided with an air inlet hole.

[0013] As an option, a plurality of the first heat sinks are arranged along the circumferential direction of the upper seat body, and the first heat sinks extend along the radial direction of the upper seat body.

[0014] A plurality of the second heat sinks are arranged along the circumferential direction of the lower seat body, and the second heat sinks extend along the radial direction of the lower seat body.

[0015] As an option, a plurality of the second heat sinks are arranged outside a plurality of the first heat sinks.

[0016] As an option, a plurality of the first heat sinks and a plurality of the second heat sinks are arranged in a staggered manner.

[0017] The utility model discloses beneficial effects:

[0018] The utility model provides a lamp, through setting up air inlet channel in lower seat body and setting up air outlet channel in lamp shade, and setting up first heat sink and second heat sink between air inlet channel and air outlet channel, so that when the cold air of outside enters through air inlet channel and discharges through air outlet channel, the cold air can take away the heat of first heat sink and second heat sink, to improve the heat dissipation effect, and the upper lamp plate and lower lamp plate are arranged in upper seat body and lower seat body respectively, so that first heat sink can radiate the upper lamp plate, and second heat sink can radiate the lower lamp plate, which can effectively reduce the temperature of the upper lamp plate and the lower lamp plate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a sectional view of the lamp provided by the embodiment of the utility model;

[0020] Figure 2 is structural schematic view of lamp cover body provided by the embodiment of the utility model;

[0021] Figure 3 is structural schematic view of upper seat body related by the embodiment of the utility model;

[0022] Figure 4 is structural schematic view of lower seat body related by the embodiment of the utility model;

[0023] Figure 5 is structural schematic view of inner cover body related by the embodiment of the utility model;

[0024] Figure 6 is structural schematic view of upper lamp plate related by the embodiment of the utility model;

[0025] Figure 7 is structural schematic view of lower lamp plate related by the embodiment of the utility model.

[0026] In the drawing:

[0027] 1, lampshade;11, cover body;111, inner cover body;1111, annular blocking portion;1112, first connecting rib;112, outer cover body;12, upper light outlet cover;13, lower light outlet cover;14, air outlet passage;

[0028] 2, mounting seat;21, upper seat body;211, seat plate;2111, first radiating fin;212, connecting column;22, lower seat body;221, cylinder;2211, connecting portion;2212, second connecting rib;2213, air inlet passage;222, annular plate;2221, second radiating fin;

[0029] 3, upper lamp plate;31, upper light source;

[0030] 4, lower lamp plate;41, first lower light source;42, second lower light source;

[0031] 5, texture sheet;51, driving motor;

[0032] 6, air outlet cover;

[0033] 7, air inlet cover;

[0034] 8, fixing ring;

[0035] 9, support rod. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar components or components having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0037] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the description of the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include the first feature and the second feature in direct contact, or the first feature and the second feature not in direct contact but in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] The technical scheme of the present application is further illustrated below by combining the drawings and through specific embodiments.

[0040] As Figures 1-5As shown, the utility model embodiment provides a lamp (can be floor lamp, ceiling lamp or track lamp, floor lamp is arranged on ground, ceiling lamp and track lamp are hung in roof), it includes lampshade 1, mounting seat 2, upper light plate 3 and lower light plate 4. Among them, mounting seat 2 includes the upper seat body 21 and lower seat body 22 that are spaced apart in lampshade 1 along the first direction, the end face of upper seat body 21 and lower seat body 22 opposite, i.e. along the first direction, the upper end face of upper seat body 21 and the lower end face of lower seat body 22 are installed upper light plate 3 and lower light plate 4 respectively, the end face of upper seat body 21 and lower seat body 22 is opposite, i.e. along the first direction, the lower end face of upper seat body 21 and the upper end face of lower seat body 22 are provided with a plurality of interval distribution's first radiating fin 2111 and a plurality of interval distribution's second radiating fin 2221 respectively. Lower seat body 22 is provided with air inlet passage 2213, lampshade 1 is provided with air outlet passage 14, and first radiating fin 2111 and second radiating fin 2221 are arranged between air inlet passage 2213 and air outlet passage 14. It can be understood that there is a gap between any adjacent two first radiating fins 2111 in the plurality of first radiating fins 2111 and between any adjacent two second radiating fins 2221 in the plurality of second radiating fins 2221. Cold air outside lampshade 1 can enter through air inlet passage 2213, enter air outlet passage 14 through the gap of the plurality of first radiating fins 2111 and the gap of the plurality of second radiating fins 2221, and be discharged through air outlet passage 14.

[0041] The lamp passes through the air inlet passage 2213 of the lower seat body 22 and the air outlet passage 14 in the lampshade 1, and the first radiating fin 2111 and the second radiating fin 2221 are arranged between the air inlet passage 2213 and the air outlet passage 14, so that when the cold air enters through the air inlet passage 2213 and is discharged through the air outlet passage 14, the cold air can take away the heat of the first radiating fin 2111 and the second radiating fin 2221, so as to improve the heat dissipation effect; and the upper light plate 3 and the lower light plate 4 are arranged on the upper seat body 21 and the lower seat body 22 respectively, so that the first radiating fin 2111 can dissipate heat for the upper light plate 3, the second radiating fin 2221 can dissipate heat for the lower light plate 4, and the temperature of the upper light plate 3 and the lower light plate 4 can be effectively reduced.

[0042] Specifically, the first fins 2111 are located at the outlet of the air inlet channel 2213 and are arranged towards the air inlet channel 2213. This arrangement allows the cold air to first enter the gaps between the first fins 2111 and take away the heat of the first fins 2111 when the cold air enters the air outlet channel 14 through the air inlet channel 2213, thereby improving the heat dissipation speed of the first fins 2111. The second fins 2221 are located at the bottom of the air outlet channel 14. This arrangement allows the cold air to flow into the air outlet channel 14 after being blocked by the upper seat body 21 and then flow around the second fins 2221. The cold air entering the air outlet channel 14 can take away the heat of the second fins 2221 when the cold air flows out through the air outlet channel 14, thereby improving the heat dissipation speed of the second fins 2221.

[0043] It should be noted that a portion of the cold air entering the air outlet channel 14 will enter the gaps between the second fins 2221 when the cold air flows out through the air outlet channel 14, thereby taking away the heat of the second fins 2221. Even if the cold air does not enter the gaps between the second fins 2221, the cold air will still take away the heat of the second fins 2221 when the cold air flows out through the air outlet channel 14, thereby improving the heat dissipation speed of the second fins 2221.

[0044] Specifically, as shown in Figure 3 and in combination with Figure 1 The lower seat body 22 includes a cylindrical body 221 and an annular plate 222 connected to each other in the first direction. The cylindrical body 221 is a hollow structure, and the hollow structure is the air inlet channel 2213. The annular plate 222 is arranged at the end edge of the cylindrical body 221 facing the upper seat body 21. The annular plate 222 constitutes the bottom of the air outlet channel 14. The second fins 2221 are arranged around the center of the air inlet channel 2213 on the upper end surface of the annular plate 222 facing away from the cylindrical body 221 (i.e., the second fins 2221 are located at the bottom of the air outlet channel 14). The lower lamp plate 4 is arranged on the lower end surface of the annular plate 222 facing the cylindrical body 221. This structure allows the heat of the lower lamp plate 4 to quickly flow to the second fins 2221 by arranging the second fins 2221 and the lower lamp plate 4 on the upper end surface and the lower end surface of the annular plate 222, respectively, thereby improving the heat dissipation efficiency of the lower lamp plate 4. Moreover, the lower lamp plate 4 is located outside the air outlet channel 14, thereby ensuring that the lower lamp plate 4 is not affected by the flow of cold air.

[0045] Further, as shown in Figure 4 and in combination with Figure 1As shown, the upper seat body 21 further comprises a seat plate 211, the seat plate 211 and the cylinder body 221 are spaced apart along the first direction, a plurality of first radiating fins 2111 are arranged around the center of the seat plate 211 and are arranged on the lower end surface of the seat plate 211 and face the air inlet channel 2213, and the upper lamp plate 3 is arranged on the upper end surface of the seat plate 211. The structure is arranged so that the heat generated by the upper lamp plate 3 can quickly flow to the first radiating fins 2111, thereby improving the heat dissipation efficiency of the upper lamp plate 3.

[0046] Optionally, the lower end surface of the seat plate 211 is provided with a plurality of connecting columns 212, the connecting columns 212 are integrally formed with the seat plate 211, and the end of the connecting column 212 away from the seat plate 211 is connected to the upper end surface of the annular plate 222 by a screw.

[0047] Optionally, the center of the air inlet channel 2213 coincides with the center of the seat plate 211, and the structure makes the seat plate 211 face the outlet of the air inlet channel 2213, that is, the plurality of first radiating fins 2111 arranged around face the outlet of the air inlet channel 2213, so that the heat dissipation is more uniform.

[0048] Optionally, as shown in the first embodiment, Figure 5 and in combination with Figure 1 As shown, the lampshade 1 comprises a cover body 11 and an annular blocking portion 1111 arranged in the cover body 11, the upper end of the annular blocking portion 1111 along the first direction is connected to the cover body 11 by a first connecting rib 1112, the lower end of the annular blocking portion 1111 along the first direction is connected to the seat plate 211 of the upper seat body 21, the outer wall of the annular blocking portion 1111 and the inner wall of the cover body 11 form an air outlet channel 14, the annular plate 222 is the bottom of the air outlet channel 14, and the upper lamp plate 3 is located in the annular blocking portion 1111. The structure makes the upper lamp plate 3 located outside the air outlet channel 14, so as to ensure that the upper lamp plate 3 is not affected by the flow of cold air, that is, the cold air cannot enter the annular blocking portion 1111 during the heat flow with the cold air, and the annular blocking portion 1111 has a light shielding effect to prevent the light of the upper light source 31 from being scattered around.

[0049] Optionally, as shown in the first embodiment, Figures 1-2 As shown, the lamp further comprises an air inlet cover 7 arranged in the air inlet channel 2213 and an air outlet cover 6 arranged at the outlet of the air outlet channel 14, the air inlet cover 7 is arranged at the lower end of the cylinder body 221, and the air inlet cover 7 is provided with a plurality of air inlet holes, the air outlet cover 6 is arranged between the cover body 11 and the annular blocking portion 1111 and is supported on the first connecting rib 1112, and the air outlet cover 6 is provided with a plurality of air outlet holes. The structure design can increase the overall aesthetic appearance and does not affect the heat dissipation.

[0050] Optionally, the annular barrier 1111 is tapered, and the cross-sectional area of the annular barrier 1111 gradually decreases from the upper seat body 21 to the lower seat body 22. In the first direction, this structure causes the air outlet channel 14 to gradually decrease, that is, the area of the lower part of the air outlet channel 14 near the air inlet channel 2213 is greater than the area at the outlet of the air outlet channel 14, which can increase the setting area of the second heat dissipation fins 2221 and improve the heat dissipation capacity.

[0051] Optionally, referring again to Figures 3-4 As shown, the plurality of first heat dissipation fins 2111 are distributed along the circumferential direction of the upper seat body 21 (that is, distributed around the center of the seat plate 211), and the first heat dissipation fins 2111 extend along the radial direction of the upper seat body 21; the plurality of second heat dissipation fins 2221 are distributed along the circumferential direction of the lower seat body 22 (that is, distributed around the center of the air inlet channel 2213), and the second heat dissipation fins 2221 extend along the radial direction of the lower seat body 22. This structure allows cold air to flow without any obstruction, effectively preventing heat cross.

[0052] Optionally, the plurality of second heat dissipation fins 2221 are circumferentially arranged outside the plurality of first heat dissipation fins 2111, so that the cold air can carry away more heat.

[0053] Further, the plurality of first heat dissipation fins 2111 and the plurality of second heat dissipation fins 2221 are distributed in a staggered manner, so that the cold air flows more smoothly after passing through the first heat dissipation fins 2221 and entering the plurality of second heat dissipation fins 2221, further improving the heat dissipation efficiency.

[0054] In this embodiment, as Figures 6-7 and in combination with Figures 1-2 As shown, the upper lamp plate 3 is provided with an upper light source 31, which can emit light through the upper end of the lampshade 1 to light the ceiling and achieve an atmosphere lamp effect; the lower lamp plate 4 is provided with a plurality of first lower light sources 41 and a plurality of second lower light sources 42, which are distributed around the center of the lower lamp plate 4 (coinciding with the center of the air inlet channel 2213). The distance between the first lower light source 41 and the center of the lower lamp plate 4 is greater than the distance between the second lower light source 42 and the center of the lower lamp plate 4, that is, the first lower light source 41 is arranged close to the inner wall of the circumferential side of the lampshade 1, and the second lower light source 42 is arranged close to the center of the lower lamp plate 4, so that the first lower light source 41 can emit light through the circumferential side of the lampshade 1 and the second lower light source 42 can emit light through the lower end of the lampshade 1, thereby achieving the first lower light source 41 to light the periphery of the use space to form a light effect and beautify the use space, and the second lower light source 42 to light downward to provide illumination for the use space.

[0055] The lamp realizes three-side light emission, is rich in function, saves floor space, and improves use convenience by arranging the upward light-emitting source 31 on the upper lamp plate 3, and arranging the first downward light-emitting source 41 and the second downward light-emitting source 42 on the lower lamp plate 4.

[0056] Optionally, the upper light-emitting source 31 is arranged in a plurality of forms, the plurality of upper light-emitting sources 31 are arranged around the center of the upper lamp plate 3, and a part of the plurality of upper light-emitting sources 31 are white LED lamps, and the other part are colored LED lamps, and the plurality of white LED lamps and the plurality of colored LED lamps are arranged in an interlaced manner. By arranging the white LED lamps and the colored LED lamps in an interlaced manner, the atmosphere lamp effect can be better.

[0057] Optionally, as shown in Figure 7 the plurality of first downward light-emitting sources 41 are arranged in a circle around the center of the lower lamp plate 4, the first downward light-emitting sources 41 are all colored LED lamps, so as to improve the beautifying effect; the plurality of second downward light-emitting sources 41 are arranged in a plurality of circles around the center of the lower lamp plate 4, the plurality of circles are arranged in a radial direction of the lower lamp plate 4 and are arranged at equal intervals, and the second downward light-emitting sources 41 are all white LED lamps, so as to improve the lighting effect. In the embodiment, the second downward light-emitting sources 41 are arranged in three circles, and the first downward light-emitting sources 41 are located at the outermost side.

[0058] Optionally, the lampshade 1 further comprises an upper light-emitting cover 12 arranged on the upper end of the cover body 11, and the mounting seat 2 is arranged in the cover body 11, and the upper light-emitting source 31 emits light through the upper light-emitting cover 12. By arranging the upper light-emitting cover 12, the light emitted by the upper light-emitting source 31 can be processed, so as to improve the effect.

[0059] Further, the inner side of the upper light-emitting cover 12 facing the upper light-emitting source 31 is provided with a corrugated structure. By arranging the upper light-emitting cover 12 in a corrugated structure, the light emitted from the upper light-emitting cover 12 can brighten the ceiling of the use space.

[0060] In order to further improve the atmosphere lamp effect, the lamp further comprises a texture sheet 5, the texture sheet 5 is located above the upper light-emitting source 31, the upper light-emitting source 31 emits light through the texture sheet 5 and the upper light-emitting cover 12 in sequence, and the side of the texture sheet 5 away from the upper light-emitting source 31 is provided with a concave-convex structure.

[0061] Specifically, the texture sheet 5 is arranged above the upper light source 31 by a driving motor 51, the driving motor 51 is fixedly arranged in the air inlet channel 2213 and connected with the lower end surface of the seat plate 211 through a connecting rod, the output shaft of the driving motor 51 protrudes from the seat plate 211 and penetrates the center of the upper lamp plate 3, and the texture sheet 5 is fixedly arranged at the end of the output shaft of the driving motor 51 and arranged in a spaced manner with the upper lamp plate 3. The driving motor 51 can drive the rotation of the texture sheet 5, so that the concave-convex structure of the texture sheet 5 matches the corrugated structure of the upper light-shielding cover 12, a dynamic light effect can be produced, the water ripples effect is more vivid, and the atmosphere lamp effect is further improved.

[0062] Optionally, the cover body 11 comprises an inner cover body 111 and an outer cover body 112, the mounting seat 2 is arranged in the inner cover body 111, and the outer cover body 112 is sleeved outside the inner cover body 111. The inner cover body 111 can be arranged as required, so that the first lower light source 41 can emit the required light effect when passing through the circumferential side of the inner cover body 111. The outer cover body 112 is used for protecting the inner cover body 111.

[0063] Further, in order to enable the first lower light source 41 to provide a flame light effect for a use space, the side wall of the lower part of the inner cover body 111 for light emission is arranged as a gradient layer. In the embodiment, the inner cover body 111 and the outer cover body 112 are both cylindrical structures.

[0064] Further, the gradient layer is gradually lightened from the upper part to the lower part of the inner cover body 111.

[0065] Optionally, the lower part of the inner cover body 111 can be processed into the gradient layer by means of gradient injection molding or gradient spraying.

[0066] Optionally, the side wall of the upper part of the inner cover body 111 can be arranged as a light-shielding color to prevent light leakage.

[0067] Optionally, the lamp cover 1 further comprises a lower light-shielding cover 13, the lower light-shielding cover 13 is arranged at the lower end of the cover body 11 and connected with the cylinder body 221, and the second lower light source 41 emits light through the lower light-shielding cover 13. By enabling the second lower light source 41 to emit light downward through the lower light-shielding cover 13, the light emission is uniform, and the illumination effect is improved without being dazzling.

[0068] In the embodiment, the lamp further comprises a fixing ring 8, the lower light-shielding cover 13 is connected with the cylinder body 221, the fixing ring 8 is connected with the lower light-shielding cover 13, the lower end of the inner cover body 111 is supported on the lower light-shielding cover 13, and the lower end of the outer cover body 112 is supported on the fixing ring 8.

[0069] The lamp further comprises a supporting rod 9, the cylinder 221 is provided with a connecting portion 2211 on the inner wall of the air inlet channel 2213, the connecting portion 2211 is connected with the inner wall of the air inlet channel 2213 through a second connecting rib 2212, and the supporting rod 9 is rotationally connected with the connecting portion 2211. The structure is arranged so that the lower seat body 22 can rotate relative to the supporting rod 9, so as to realize the rotation of the upper lamp plate 3 and the lower lamp plate 4.

[0070] Specifically, the end of the supporting rod 9 is provided with a spherical head, the connecting portion 2211 is provided with a universal bearing, and the spherical head is arranged in the universal bearing.

[0071] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A luminaire, characterized by The lamp includes a lampshade (1), a mounting base (2), an upper lamp plate (3) and a lower lamp plate (4), the mounting base (2) includes an upper seat body (21) and a lower seat body (22) which are spaced apart in a first direction within the lampshade (1), the end faces of the upper seat body (21) and the lower seat body (22) away from each other are respectively provided with the upper lamp plate (3) and the lower lamp plate (4), and the end faces of the upper seat body (21) and the lower seat body (22) facing each other are respectively provided with a plurality of first heat dissipation fins (2111) and a plurality of second heat dissipation fins (2221) which are spaced apart; The lower seat body (22) is provided with an air inlet channel (2213), the lampshade (1) is provided with an air outlet channel (14), the first heat dissipation fins (2111) and the second heat dissipation fins (2221) are arranged between the air inlet channel (2213) and the air outlet channel (14), and cold air enters the air inlet channel (2213) along the first direction and is discharged through the air outlet channel (14).

2. The luminaire of claim 1, wherein, The lampshade (1) includes a cover body (11) and an annular blocking portion (1111) arranged in the cover body (11), the upper end of the annular blocking portion (1111) in the first direction is connected with the cover body (11) through a first connecting rib (1112), the lower end of the annular blocking portion (1111) in the first direction is connected with the upper seat body (21), the outer wall of the annular blocking portion (1111) and the inner wall of the cover body (11) form the air outlet channel (14), and the upper lamp plate (3) is located in the annular blocking portion (1111).

3. The luminaire of claim 2, wherein, The lamp further includes an air outlet cover (6) arranged at the outlet of the air outlet channel (14), the air outlet cover (6) is arranged between the cover body (11) and the annular blocking portion (1111), and the air outlet cover (6) is provided with a plurality of air outlet holes.

4. The luminaire of claim 2, wherein, The annular blocking portion (1111) is tapered, and the cross-sectional area of the annular blocking portion (1111) gradually decreases in the direction from the upper seat body (21) to the lower seat body (22).

5. The luminaire of claim 1, wherein, The lower seat body (22) includes a cylinder body (221) and an annular plate (222) which are connected with each other in the first direction, the cylinder body (221) is provided with the air inlet channel (2213), the annular plate (222) is arranged at the one end edge of the cylinder body (221) facing the upper seat body (21), a plurality of the second heat dissipation fins (2221) are arranged at the upper end face of the annular plate (222) away from the cylinder body (221) and surround the center of the air inlet channel (2213), and the lower lamp plate (4) is arranged at the lower end face of the annular plate (222) facing the cylinder body (221).

6. The luminaire of claim 5, wherein, The upper seat body (21) comprises a seat plate (211) which is arranged along the first direction away from the barrel body (221), a plurality of first heat dissipation fins (2111) are arranged on the lower end surface of the seat plate (211) towards the barrel body (221), and the upper lamp plate (3) is arranged on the upper end surface of the seat plate (211) away from the barrel body (221).

7. The luminaire of claim 5, wherein, The lamp further comprises an air inlet cover (7) arranged at the inlet of the air inlet channel (2213), the air inlet cover (7) is arranged at the lower end of the barrel body (221), and the air inlet cover (7) is provided with an air inlet hole.

8. The lamp according to any one of claims 1-7, characterized in that, The plurality of first heat dissipation fins (2111) are distributed along the circumferential direction of the upper seat body (21), and the first heat dissipation fins (2111) extend along the radial direction of the upper seat body (21); The plurality of second heat dissipation fins (2221) are distributed along the circumferential direction of the lower seat body (22), and the second heat dissipation fins (2221) extend along the radial direction of the lower seat body (22).

9. The luminaire of claim 8, wherein, The plurality of second heat dissipation fins (2221) are arranged outside the plurality of first heat dissipation fins (2111).

10. The luminaire of claim 8, wherein, The plurality of first heat dissipation fins (2111) and the plurality of second heat dissipation fins (2221) are distributed in a staggered manner.

Images