CN210687964U - Lamp set - Google Patents

Abstract

The utility model discloses a lamp, which comprises a lampshade, a radiating element and a cover body; the bottom of the mounting cavity of the lampshade is provided with a mounting part, and the bottom of the mounting cavity is circumferentially provided with a plurality of first through holes along the outer side of the mounting part; the heat dissipation element comprises a bottom plate and a side wall plate; the side enclosing plate is arranged along the circumferential direction of the bottom plate and encloses a first groove with the bottom plate; the bottom plate is arranged on the back side of the lampshade and is positioned at a position opposite to the mounting part, a second through hole is formed at a position of the bottom plate opposite to the first through hole, and the second through hole is communicated with the first groove; the cover body is arranged at the notch of the first groove and forms a closed cavity with the first groove, and the cover body is provided with a third through hole communicated with the closed cavity; and a fluid channel communicated with the outside is formed among the mounting chamber, the first through hole, the second through hole, the closed chamber and the third through hole. Above-mentioned scheme can solve the radiating efficiency that present dome lamp's radiator structure exists and lower and increase dome lamp's whole weight and production manufacturing cost's problem.

Description

Lamp set

Technical Field

The utility model relates to a lighting apparatus technical field especially relates to a lamp.

Background

The lamp is used as lighting equipment and widely applied to daily life of people; moreover, with the continuous development and change of the technology in the LED lighting industry, the variety of the lamps is more and more. In which, a ceiling lamp is an example of a lighting device generally used in large-scale places.

In the lighting work of the ceiling lamp, the requirement on the lighting brightness of the ceiling lamp is higher, so the working power of a light source of the ceiling lamp is higher, and more heat sources are emitted by the light source; therefore, in order to dissipate these heat sources in the lamp body, a heat sink is provided in the dome lamp to dissipate the heat.

However, the heat sink structure adopted by the existing ceiling lamp not only has the problem of low heat dissipation efficiency, but also increases the weight and the production and manufacturing cost of the ceiling lamp.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a lamp to solve the problem that the radiating efficiency that the radiator structure of present dome lamp exists is lower and increase the weight and the manufacturing cost of dome lamp.

In order to solve the above problem, the utility model adopts the following technical scheme:

a lamp comprises a lampshade, a heat dissipation element and a cover body; the lampshade is provided with an installation cavity with a light outlet, the bottom of the installation cavity is provided with an installation part for installing a light source assembly, and the bottom of the installation cavity is circumferentially provided with a plurality of first through holes along the outer side of the installation part; the heat dissipation element comprises a bottom plate and a side wall plate; the side enclosing plates are arranged along the circumferential direction of the bottom plate and enclose with the bottom plate to form a first groove; the bottom plate is arranged on the back side of the lampshade and is positioned at a position opposite to the mounting part, a plurality of second through holes are arranged at positions of the bottom plate opposite to the first through holes in a surrounding manner, and the second through holes are communicated with the first grooves; the cover body is arranged on the notch of the first groove and forms a closed cavity with the first groove, and the cover body is surrounded with a plurality of third through holes communicated with the closed cavity; and a fluid channel communicated with the outside is formed among the mounting chamber, the first through hole, the second through hole, the closed chamber and the third through hole.

Optionally, an end surface of the side wall plate, which is away from the bottom plate, is a first end surface, the edge portion of the cover body is provided with a first step surface matched with the first end surface, and the first end surface abuts against the first step surface.

Optionally, the bottom plate with be provided with positioning mechanism between the installation department, just the bottom plate passes through positioning mechanism with installation department location fit.

Optionally, the positioning mechanism includes at least two positioning bolts, a first positioning hole disposed in the mounting portion, and a second positioning hole disposed in the bottom plate, and the number of the first positioning hole and the number of the second positioning hole are the same as the number of the positioning bolts; and the screw rod of one positioning bolt penetrates through the corresponding second positioning hole and the corresponding first positioning hole and is fixedly connected with the mounting part.

Optionally, the bottom plate with the installation department laminating, just the bottom plate with laid the heat-conducting layer between the binding face of installation department.

Optionally, the thermally conductive layer is a thermally conductive pad or a silicone layer.

Optionally, one surface of the cover body facing the first groove is a front surface of the cover body, a second groove for accommodating a driving power supply is arranged on the front surface of the cover body, and the notch of the second groove and the notch of the first groove are opposite to form the closed cavity.

Optionally, one surface of the cover body, which is away from the first groove, is a back surface of the cover body, and the back surface of the cover body is provided with a mounting bracket; the mounting bracket comprises a mounting plate and a hook, the mounting plate is detachably connected with the cover body, and the hook is pivoted on the mounting plate.

Optionally, the lamp further comprises a fastening bolt and a fastening nut; the both ends of mounting panel are provided with first mounting hole, the lid with the position that first mounting hole is relative is provided with the second mounting hole, the bottom plate with the position that the second mounting hole is relative is provided with the third mounting hole, the installation department with the position that the third mounting hole is relative sets up the fourth mounting hole, fastening bolt's screw rod passes first mounting hole the second mounting hole the third mounting hole with the fourth mounting hole and with fastening nut fastening cooperation.

Optionally, the light fixture further comprises a face mask; the mask is positioned in the mounting cavity and covers the mounting part; and a third groove is formed in the position, opposite to the fastening nut, of the mask, and the fastening nut is positioned in the third groove.

The utility model discloses a technical scheme can reach following beneficial effect:

the utility model discloses a lamp which improves the radiator structure of the prior ceiling lamp; the back side of the lampshade is provided with a radiating element comprising a bottom plate and a side enclosing plate, the bottom of an installation cavity of the lampshade is circumferentially provided with a plurality of first through holes along the outer side of an installation part, the bottom plate is circumferentially provided with a plurality of second through holes, and the cover body is circumferentially provided with a plurality of third through holes, so that a fluid channel communicated with the outside is formed among the installation cavity, the first through holes, the second through holes, the closed cavity and the third through holes; therefore, in the heat source generated by the light source assembly arranged in the mounting part in the lampshade in the lighting working process, one part of the heat source can be transmitted to the bottom plate through the mounting part, and is transmitted to the side coaming plate through the heat absorption and heat soaking action of the bottom plate, and is then dispersed to the outside through the heat dissipation action of the side coaming plate, the other part of the heat source is rapidly led out of the outside from the third perforation along the fluid channel through the chimney effect generated by the fluid channel, and the side coaming plate can also play a role in heat dissipation on the heat source passing through the closed cavity; therefore, the utility model discloses a lamps and lanterns not only can avoid the gathering of heat source in the lamp shade, improve the radiating effect of lamps and lanterns effectively through adopting radiating element including basic and side bounding wall and fluid passage to form cooperative heat radiation structure, but also reduced the complexity of radiator structure, be favorable to alleviateing the weight of lamps and lanterns and reduce the manufacturing cost of lamps and lanterns.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is an exploded schematic view of a lamp disclosed in an embodiment of the present invention;

fig. 2 is a bottom view of a lamp disclosed in an embodiment of the present invention;

fig. 3 is a top view of a lamp disclosed in an embodiment of the present invention;

fig. 4 is a cross-sectional view of a lamp disclosed in an embodiment of the present invention (the straight line with the arrow in the figure indicates the flow direction of the heat source);

FIG. 5 is a partial enlarged view of portion A of FIG. 4;

fig. 6 is a schematic structural view of a lamp shade disclosed in the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a heat dissipation element disclosed in an embodiment of the present invention;

fig. 8 is a schematic structural view of a cover body disclosed in an embodiment of the present invention;

fig. 9 is a schematic structural view of a mounting plate disclosed in an embodiment of the present invention;

fig. 10 is a schematic structural view of a mask disclosed in an embodiment of the present invention;

description of reference numerals:

100-lampshade, 101-mounting chamber, 110-mounting part, 111-first through hole, 112-first positioning hole, 120-LED light source plate, 130-face mask, 131-third groove,

200-heat dissipation element, 210-bottom plate, 211-second through hole, 212-second positioning hole, 220-side enclosing plate, 230-first groove,

300-cover body, 301-first step surface, 310-third through hole, 320-through groove, 321-step part, 322-second step surface, 323-first wiring hole, 330-second groove,

400-closed chamber, 410-driving power supply, 411-electric wire,

500-mounting bracket, 510-mounting plate, 511-first attaching part, 512-second attaching part, 513-first circuitous part, 514-first mounting hole, 515-second wiring hole, 520-hook,

600-fastening bolts.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 10, an embodiment of the present invention discloses a lamp, which includes a lamp cover 100, a heat dissipation element 200, and a cover 300.

The lampshade 100 is provided with an installation chamber 101 with a light outlet, the bottom of the installation chamber 101 is provided with an installation part 110 for installing a light source assembly, generally, the light source assembly is an LED light source plate 120 with light emitting diodes, and is fixed on the installation part 110 of the installation chamber 101 through fasteners such as screws, so that light rays emitted by the LED light source plate 120 during power-on operation can be emitted from the light outlet of the installation chamber 101 for illumination; the bottom of the mounting chamber 101 is circumferentially provided with a plurality of first through holes 111 along the outer side of the mounting portion 110, that is, the plurality of first through holes 111 are arranged around the mounting portion 110, so as to avoid the light source assembly arranged on the mounting portion 110 from shielding the first through holes 111.

The heat dissipating element 200 includes a bottom plate 210 and a side wall plate 220; the side enclosing plate 220 is disposed along the circumferential direction of the bottom plate 210 and encloses the bottom plate 210 to form a first groove 230, so that the first groove 230 not only facilitates the layout of electrical components such as the driving power source 410 disposed on the cover 300, but also the first groove 230 can be used as a part of the fluid channel.

The bottom plate 210 and the side wall plate 220 can be made of heat conducting materials with high heat conducting coefficients such as aluminum, iron, aluminum alloy or iron alloy, so that the bottom plate and the side wall plate have good heat conducting performance; the bottom plate 210 is disposed on the back side of the lamp shade 100 and located at a position opposite to the mounting portion 110, so that a part of heat generated by the light source assembly disposed on the mounting portion 110 during the lighting operation can be transmitted to the bottom plate 210 through the mounting portion 110, and transmitted to the side wall plate 220 through the heat absorption and heat soaking effect of the bottom plate 210, and then dissipated to the outside through the heat dissipation effect of the side wall plate 220.

A plurality of second through holes 211 are arranged around the position of the bottom plate 210 opposite to the first through holes 111, and the second through holes 211 are communicated with the first groove 230; the cover 300 is disposed in the notch of the first groove 230 and forms a closed chamber 400 with the first groove 230, and the cover 300 encloses a plurality of third through holes 310 communicated with the closed chamber 400; a fluid channel communicated with the outside is formed among the mounting chamber 101, the first through hole 111, the second through hole 211, the closed chamber 400 and the third through hole 310, so that another part of heat sources generated by the light source assembly arranged on the mounting portion 110 in the illumination working process can be rapidly led out of the outside from the third through hole 310 along the fluid channel through a chimney effect generated by the fluid channel; moreover, the side wall plates 220 can also perform a heat dissipation function on a heat source passing through the closed chamber 400; the first through holes 111 and the second through holes 211 may be opposite to each other to form a plurality of fluid channel inlets, and the third through holes 310 may form a plurality of fluid channel outlets, so that the heat source may be rapidly and smoothly discharged through the fluid channel.

Therefore, compare in the radiator structure of current dome lamp, the utility model discloses a lamps and lanterns not only can avoid the heat source to gather in lamp shade 100, improve the radiating effect of lamps and lanterns effectively through adopting radiating element 200 including bottom plate 210 and side bounding wall 220 and form cooperating heat radiation structure with fluid passage, but also reduced the complexity of radiator structure, be favorable to alleviateing the weight of lamps and lanterns and reduce the manufacturing cost of lamps and lanterns.

As shown in fig. 4 and 5, an end surface of the side wall plate 220 facing away from the bottom plate 210 is a first end surface, and the edge portion of the cover 300 may be provided with a first step surface 301 adapted to the first end surface, so that the first end surface abuts against the first step surface 301, thereby playing a limiting role and facilitating the covering and assembling of the cover 300 and the first groove 230.

Meanwhile, a positioning mechanism may be further disposed between the bottom plate 210 and the mounting portion 110, and the bottom plate 210 is in positioning fit with the mounting portion 110 through the positioning mechanism, so that relative movement between the heat dissipation element 200 and the mounting portion 110 may be prevented, and blockage of a fluid channel due to misalignment of the first through hole 111 and the second through hole 211 is avoided.

Specifically, the positioning mechanism includes at least two positioning bolts, a first positioning hole 112 disposed in the mounting portion 110 and a second positioning hole 212 disposed in the bottom plate 210, and the number of the first positioning hole 112 and the number of the second positioning hole 212 are the same as the number of the positioning bolts; the screw of one positioning bolt passes through the corresponding second positioning hole 212 and the corresponding first positioning hole 112 and is in fastening fit with the fastening nut, so that the positioning bolt is fastened and connected with the mounting portion 110.

Of course, the first through hole 111 may also be provided with an internal thread, so that the screw of the positioning bolt is in threaded fit with the first through hole 111, and the positioning bolt is fastened to the mounting portion 110; meanwhile, the positioning mechanism can also be in other structures, such as a positioning column and a positioning groove structure which are matched in positioning; the embodiment of the utility model provides a do not restrict positioning bolt and the concrete fastening connection mode of installation department 110 and positioning mechanism's specific structure kind.

In order to improve the heat conduction efficiency between the bottom plate 210 and the mounting portion 110, the bottom plate 210 is attached to the mounting portion 110, and a heat conduction layer can be laid between the attaching surfaces of the bottom plate 210 and the mounting portion 110, so that the heat resistance between the bottom plate 210 and the mounting portion 110 is reduced through the heat conduction layer, the heat source of the mounting portion 110 can be quickly transferred to the bottom plate 210, and the heat dissipation efficiency of the heat dissipation component 200 is too high; the heat conduction layer can be a structural layer with higher heat conduction coefficient, such as a heat conduction pad or a silicone layer.

In the embodiment of the present invention, the surface of the cover 300 facing the first groove 230 is a front surface of the cover, the front surface of the cover may be provided with a second groove 330 for accommodating electrical components such as the driving power source 410, and the notch of the second groove 330 and the notch of the first groove 230 form a closed cavity 400 relatively, so as to increase the accommodating space of the closed cavity 400, and facilitate the layout of the electrical components such as the driving power source 410; the driving power source 410 is preferably disposed at a side where the second recess 330 is located so as to be away from the heat dissipating element 200, i.e., not at a side where the heat dissipating element 200 is located.

The first through hole 111 may be disposed on the bottom surface of the cover 300, and the first through hole 111 is communicated with the second groove 330; of course, the sidewalls of the second groove 330 may be provided in a hollow sandwich structure, and the hollow sandwich is respectively communicated with the first groove 230 and the third through hole 310, and a fluid passage communicated with the outside is formed between the installation chamber 101, the first through hole 111, the second through hole 211, the first groove 230, the hollow sandwich, and the third through hole 310.

The embodiment of the utility model provides an in, the one side that lid 300 deviates from first recess 230 is the lid back, and the lid back is provided with installing support 500 to be convenient for install the position department of lamps and lanterns waiting to install lamps and lanterns in lighting environment through installing support 500, so that lamps and lanterns satisfy lighting environment's user demand.

The mounting bracket 500 may include a mounting plate 510 and a hook 520, the mounting plate 510 is detachably connected to the cover 300, so that the mounting bracket 500 is conveniently detached from and assembled to the lamp through the mounting plate 510; the hook 520 is pivotally connected to the mounting plate 510, thereby facilitating rotational adjustment of the hook 520 so that the hook 520 can be better adapted to the mounting location of the lamp.

Specifically, the two opposite ends of the mounting plate 510 are respectively a first attaching portion 511 and a second attaching portion 512, the first attaching portion 511 and the second attaching portion 512 are provided with first mounting holes 514, the first attaching portion 511 and the second attaching portion 512 are attached to the back of the cover body and are connected with the cover body 300 through a fastener matched with the first mounting, so that the attaching area of the mounting plate 510 and the cover body 300 can be increased through the first attaching portion 511 and the second attaching portion 512, and the improvement of the fixing stability of the mounting plate 510 and the cover body 300 is facilitated.

The mounting plate 510 is bent or bent at a portion between the first attaching portion 511 and the second attaching portion 512 to a side away from the cover 300 to form a first roundabout portion 513, and pivot holes are respectively formed at two opposite sides of the first roundabout portion 513, so that two free ends of the hook 520 can penetrate into the pivot holes to be rotatably disposed; the hook 520 has a second winding part bent or curved, and two free ends of the hook 520 respectively pass through the corresponding pivot holes and are bent to form a limiting part, so that the two free ends of the hook 520 can be prevented from being separated from the pivot holes to affect the normal use of the hook 520.

In order to better improve the stability of the assembly of the mounting plate 510 and the cover body 300, the back of the cover body can be provided with a through groove 320 matched with the mounting plate 510; the mounting plate 510 is disposed in the through groove 320, so that the mounting plate 510 disposed therein can be generally limited and fixed, which is beneficial to improving the stability of the assembly of the mounting plate 510 and the cover 300; moreover, the first winding part 513 protrudes out of the through groove 320, and the pivot hole is disposed at a portion of the first winding part 513 outside the through groove 320, so as to ensure that the hook 520 can be smoothly adjusted in rotation.

Preferably, as shown in fig. 4, 8 and 9, the bottom of the through groove 320 may have a raised step 321, and bottom surfaces of the through groove 320 at both sides of the step 321 form second step surfaces 322, respectively; first laminating portion 511 and second laminating portion 512 buckle respectively and form the third step face, and third step face and second step face 322 adaptation to third step face and second step face 322 through the adaptation can form spacing location structure, prevent that mounting panel 510 from sending relative movement along leading to 320 directions of groove and lid 300, and then are favorable to improving the stability of mounting panel 510 and lid 300 assembly.

As shown in fig. 1 and 3, the lamp disclosed in the embodiments of the present invention may further include a fastening bolt 600 and a fastening nut; the cover body 300 is provided with a second mounting hole at a position opposite to the first mounting hole 514, a third mounting hole is provided at a position opposite to the second mounting hole at the bottom plate 210, a fourth mounting hole is provided at a position opposite to the third mounting hole at the mounting part 110, a screw of the fastening bolt 600 passes through the first mounting hole 514, the second mounting hole, the third mounting hole and the fourth mounting hole, and is fastened and matched with a fastening nut, thereby realizing the simultaneous fixation between the mounting plate 510, the cover body 300, the heat dissipation element 200 and the lamp shade 100, and reducing the number of the fasteners.

The specific number of the fastening bolts 600 may be four, and the fastening bolts are uniformly arranged along the circumferential direction of the edge of the lamp, and the number of the fastening nuts, the first mounting holes 514, the second mounting holes, the third mounting holes and the fourth mounting holes is the same as that of the fastening bolts 600, and the fastening nuts, the first mounting holes, the second mounting holes, the third mounting holes and the fourth mounting holes correspond to the fastening bolts 600 one to one. Of course, the number and the position of the fastening bolts 600 may be adjusted according to the specific assembly condition, but the number of the fastening bolts 600 should be at least two to ensure the fixing reliability.

The lamp disclosed in the embodiment of the present invention may further include a face mask 130; the face shield 130 is located in the mounting chamber 101 and covers the mounting portion 110, so that the light emitting diodes or lamp beads on the LED light source plate 120 can be shielded and hidden by the face shield 130, and the anti-glare effect can be achieved, and the attractiveness of the lamp can be considered; typically, the mask 130 is secured to the mounting portion 110 by fasteners such as screws.

Meanwhile, the edge portion for fixing the mask 130 and the mounting portion 110 can be attached and the effect of hiding the fastening nut is achieved; the third groove 131 may be disposed at a position opposite to the fastening nut on the edge of the mask 130, and when the mask 130 is covered on the mounting portion 110, the fastening nut may be just located in the third groove 131, so that the mask 130 may not only avoid the fastening nut through the third groove 131, so as to attach the mask 130 to the mounting portion 110, but also hide the fastening nut in the third groove 131.

Specifically, as shown in fig. 10, the edge portion of the mask 130 is provided with first and second ear portions that are convex outward; the first ear part is provided with a mounting hole, so that fasteners such as screws can conveniently fix the mask 130 on the mounting part 110 through the mounting hole of the first ear part; third groove 131 is located on the second ear; therefore, the first ear part and the second ear part are convenient for the fixed assembly of the mask 130 and the mounting part 110, and the shielding of the edge part of the mask 130 on the first through hole 111 of the mounting part 110 can be avoided, so that the smoothness of the first through hole 111 is ensured.

The specific number of the first ear portions may be four, the specific number of the second ear portions may be four, and the first ear portions and the second ear portions are uniformly and alternately distributed along the circumferential direction of the edge portion of the mask 130; of course, according to actual design in service behavior, the specific quantity and the mode of setting of second ear and second ear can adjust adaptively, the embodiment of the utility model provides a do not restrict the specific shape structure of face guard 130.

In the embodiment of the present invention, in order to facilitate the wiring of the driving power source 410, as shown in fig. 1, fig. 4, fig. 8 and fig. 9, the step 321 can be provided with the first wire hole 323 that the electric wire 411 of the driving power source 410 passes, the first roundabout portion 513 can be provided with the second wire hole 515 with the position that the first wire hole 323 is relative, so that the electric wire 411 of the driving power source 410 can pass through the first wire hole 323 and the second wire hole 515 to be electrically connected with the power supply lines or the power supply apparatuses such as the utility power supply line. Certainly, the drive power supply 410 of lamps and lanterns can also adopt other to walk the line mode of setting, the embodiment of the utility model provides a do not restrict the drive power supply 410 of lamps and lanterns specifically walk line mode structure of setting.

The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A lamp is characterized by comprising a lampshade (100), a heat dissipation element (200) and a cover body (300); the lampshade (100) is provided with an installation chamber (101) with a light outlet, the bottom of the installation chamber (101) is provided with an installation part (110) for installing a light source assembly, and the bottom of the installation chamber (101) is circumferentially provided with a plurality of first through holes (111) along the outer side of the installation part (110);

the heat dissipation element (200) comprises a bottom plate (210) and a side wall plate (220); the side enclosing plate (220) is arranged along the circumferential direction of the bottom plate (210) and encloses a first groove (230) with the bottom plate (210); the bottom plate (210) is arranged on the back side of the lampshade (100) and located at a position opposite to the mounting part (110), a plurality of second through holes (211) are arranged in a surrounding manner at a position of the bottom plate (210) opposite to the first through holes (111), and the second through holes (211) are communicated with the first groove (230);

the cover body (300) is arranged at the notch of the first groove (230) and forms a closed chamber (400) with the first groove (230), and the cover body (300) is surrounded with a plurality of third through holes (310) communicated with the closed chamber (400); a fluid passage communicated with the outside is formed among the installation chamber (101), the first through hole (111), the second through hole (211), the closed chamber (400), and the third through hole (310).

2. A lamp as claimed in claim 1, wherein an end surface of the side enclosing plate (220) facing away from the bottom plate (210) is a first end surface, the edge portion of the cover body (300) is provided with a first step surface (301) matching with the first end surface, and the first end surface abuts against the first step surface (301).

3. A light fixture as claimed in claim 1 or 2, characterized in that a positioning mechanism is arranged between the base plate (210) and the mounting portion (110), and the base plate (210) is in positioning fit with the mounting portion (110) by means of the positioning mechanism.

4. A lamp as claimed in claim 3, wherein the positioning mechanism comprises at least two positioning bolts, and a first positioning hole (112) provided in the mounting portion (110) and a second positioning hole (212) provided in the base plate (210), and the number of the first positioning holes (112) and the number of the second positioning holes (212) are the same as the number of the positioning bolts; the screw rod of one positioning bolt penetrates through one corresponding second positioning hole (212) and one corresponding first positioning hole (112) and is fixedly connected with the mounting part (110).

5. A lamp as recited in claim 1 or claim 2, wherein the base plate (210) abuts the mounting portion (110), and a heat conducting layer is applied between abutting surfaces of the base plate (210) and the mounting portion (110).

6. A lamp as recited in claim 5, wherein the thermally conductive layer is a thermal pad or a silicone layer.

7. A lamp as claimed in claim 1 or 2, wherein a surface of the cover (300) facing the first groove (230) is a front surface of the cover, the front surface of the cover is provided with a second groove (330) for accommodating a driving power source, and a notch of the second groove (330) and a notch of the first groove (230) are opposite to form the closed chamber (400).

8. A lamp as claimed in claim 7, characterized in that a side of the cover (300) facing away from the first recess (230) is a cover back side, and the cover back side is provided with a mounting bracket (500); the mounting bracket (500) comprises a mounting plate (510) and a hook (520), the mounting plate (510) is detachably connected with the cover body (300), and the hook (520) is pivoted on the mounting plate (510).

9. A luminaire as claimed in claim 8, characterized in that the luminaire further comprises a fastening bolt (600) and a fastening nut; the both ends of mounting panel are provided with first mounting hole (514), lid (300) with the position that first mounting hole (514) is relative is provided with the second mounting hole, bottom plate (210) with the position that the second mounting hole is relative is provided with the third mounting hole, installation department (110) with the position that the third mounting hole is relative sets up the fourth mounting hole, the screw rod of fastening bolt (600) passes first mounting hole (514), the second mounting hole the third mounting hole with the fourth mounting hole and with fastening nut fastening cooperation.

10. A light fixture as recited in claim 9, further comprising a face mask (130); the mask (130) is positioned in the mounting chamber (101) and covers the mounting part (110); and a third groove (131) is formed in the position, opposite to the fastening nut, of the face mask (130), and the fastening nut is positioned in the third groove (131).

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