CN212408420U

CN212408420U - a downlight

Info

Publication number: CN212408420U
Application number: CN202020957919.0U
Authority: CN
Inventors: 傅明燕; 陈小波; 曹亮亮; 林立平
Original assignee: Leedarson Lighting Co Ltd
Current assignee: Leedarson Lighting Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-26
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a down lamp, based on the high characteristics of the horizontal coefficient of heat conductivity of base plate, utilize the side and the lamp body contact of light source board to carry out heat-conduction, can conduct the heat of light source board to the lamp body fast to the outdiffusion improves heat dispersion, and then only utilizes the lamp body can accomplish the heat dissipation demand, need not additionally to set up the radiating piece, can satisfy the heat dissipation demand through plastic lamp body, whole lamp cost reduction. Further, the lateral wall of mounting groove passes through bellied cockscomb structure lug and light source board interference fit, guarantees the good heat-conduction of side of light source board, and does not influence the assembly, promotes the radiating effect greatly, can realize powerful plastic down lamp. The utility model discloses in, the distance of light source board and face ring is more nearly, and the play plain noodles is raised, need not set up reflection of light cup and also can satisfy the facula requirement, and the frivolousization is realized to whole lamp. The technical scheme of the utility model, the part is few, and the assembly is simple, and then simplifies the assembly process, is applicable to automatic assembly.

Description

Down lamp

Technical Field

The utility model relates to a light technical field, more specifically says, relates to a down lamp.

Background

The down lamp in the prior art usually needs to be provided with an independent or integrated metal radiating piece for heat dissipation, so that the cost is high and the structure is complex. The contact mode of the light source plate and the lamp body or the radiating piece is surface contact, namely the light source plate and the lamp body or the radiating piece are in surface contact along the thickness direction, and both surfaces of the substrate are covered with insulating layers based on the structure of the substrate of the light source plate, so that the heat conductivity coefficient of the substrate in the thickness direction is only about 1 and usually cannot exceed 1.5; therefore, the heat of the substrate cannot be transmitted to the heat dissipation part in time, so that the heat dissipation part as large as possible needs to be arranged for heat dissipation, the heat dissipation requirement cannot be met only through the all-plastic lamp body, and the cost of the whole lamp is overhigh; and parts are increased, the process is complicated, and automatic assembly is difficult to realize.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a down lamp, the horizontal heat conductivility of make full use of base plate, the heat of light source board spreads fast to the lamp body, utilizes the lamp body to dispel the heat, does not need additionally to set up the radiating piece, and overall structure simplifies, is applicable to automatic assembly.

The technical scheme of the utility model as follows:

a down lamp comprises a lamp body, a light source assembly, a light-transmitting plate and an installation assembly, wherein the light source assembly comprises a light source plate, a driving circuit element and a plug-in terminal, and the driving circuit element and the plug-in terminal are arranged on one surface, back to a light-emitting surface, of the light source plate; the inboard bottom surface of lamp body sets up the mounting groove, and the light source subassembly sets up in the mounting groove, and the side of light source board carries out horizontal heat conduction with the lateral wall contact of mounting groove.

Preferably, the side wall of the mounting groove is provided with a fastening portion protruding inward, and the light source plate is interference-fitted in the mounting groove through the fastening portion.

Preferably, the fastening portion is a plurality of saw-toothed projections provided on a side wall of the mounting groove along the circumference.

Preferably, the lamp body is of an all-plastic one-piece construction.

Preferably, the lamp body extends out of the surface ring through the curved surface transition.

Preferably, the groove bottom of the mounting groove is provided with a recessed yielding groove corresponding to the driving circuit component and the plug terminal, the yielding groove is provided with a through hole, and the plug terminal is exposed outwards through the through hole.

Preferably, the driving circuit component and the plug-in terminal are respectively close to the edge of the light source plate and are arranged at two ends of the light source plate; the middle part of the yielding groove extends towards the light source board to form a supporting board, the yielding groove is positioned on two sides of the supporting board, the corresponding driving circuit component and the inserting terminal respectively form a device yielding groove and a terminal yielding groove, and the through hole is formed in the terminal yielding groove.

Preferably, the mounting assembly comprises a clamping torsion spring and a mounting plate, the clamping torsion spring comprises a torsion spring main body and elastic arms positioned at two ends of the torsion spring main body, the inward end of the mounting plate is a mounting end, the outward end of the mounting plate is a limiting end, the limiting end is wider than the mounting end, and a middle through hole of the torsion spring main body is sleeved on the mounting plate from the mounting end and is limited by the limiting end; after the torsion spring sleeve is clamped and arranged on the mounting plate, the mounting end is fixed on the lamp body.

Preferably, the limiting end of the mounting plate comprises an anti-drop block, a reducing part and a limiting block which are sequentially arranged, the limiting block is arranged on two sides of the end part of the limiting end, the anti-drop block is arranged on two sides of the limiting end close to the mounting end, and the reducing part is positioned between the limiting block and the anti-drop block; the width of the anti-falling block is smaller than that of the limiting block.

Preferably, the outer side of the lamp body is provided with a mounting seat corresponding to the mounting component, the mounting end of the mounting plate is provided with a mounting hole, and the mounting plate is locked on the mounting seat through the mounting hole by a screw.

Preferably, the clamping device comprises two mounting assemblies, wherein each mounting assembly comprises a clamping torsion spring and a locking part, and each clamping torsion spring comprises a torsion spring main body and elastic arms positioned at two ends of the torsion spring main body; one end of the locking piece is a threaded section, and the other end of the locking piece is a limiting plate; the outer side of the lamp body is provided with a mounting seat corresponding to the mounting component; the screw thread section of the locking part penetrates through the middle through hole of the torsion spring main body and is locked on the mounting seat, the limiting plate of the locking part and the torsion spring main body form abutting limiting, and the torsion spring main body is tightly pressed on the mounting seat.

Preferably, a supporting section is arranged between the threaded section of the locking part and the limiting plate, the outer diameter of the supporting section is approximately matched with the inner diameter of the middle through hole of the torsion spring main body, and the outer diameters of the threaded section, the supporting section and the limiting plate are gradually increased.

The utility model has the advantages as follows:

down lamp, based on the characteristics that the horizontal coefficient of heat conductivity of base plate is high, utilize the side and the lamp body contact of light source board to carry out heat-conduction, can conduct the heat of light source board to the lamp body fast to outdiffusion improves heat dispersion, and then only utilize the lamp body can accomplish the heat dissipation demand, need not additionally to set up the radiating piece, can satisfy the heat dissipation demand through plastic lamp body, whole lamp cost reduction. Further, the lateral wall of mounting groove passes through bellied cockscomb structure lug and light source board interference fit, guarantees the good heat-conduction of side of light source board, and does not influence the assembly, promotes the radiating effect greatly, can realize powerful plastic down lamp. The utility model discloses in, the distance of light source board and face ring is more nearly, and the play plain noodles is raised, need not set up reflection of light cup and also can satisfy the facula requirement, and the frivolousization is realized to whole lamp.

The technical scheme of the utility model, the part is few, and the assembly is simple, and then simplifies the assembly process, is applicable to automatic assembly.

Drawings

FIG. 1 is a schematic structural view (from the bottom) of the first embodiment;

FIG. 2 is an exploded view (from below) of the structure of the first embodiment;

FIG. 3 is a schematic structural diagram (top view) according to the first embodiment;

FIG. 4 is an exploded view (top view) of the structure of the first embodiment;

FIG. 5 is a cross-sectional view of the first embodiment;

fig. 6 is a schematic structural view of a lamp body according to the first embodiment;

FIG. 7 is a partial enlarged view of the position A of FIG. 5;

FIG. 8 is a schematic structural view of a mounting assembly according to the first embodiment;

FIG. 9 is a schematic structural view of a mounting plate according to the first embodiment;

FIG. 10 is an exploded view of the structure of the second embodiment;

fig. 11 is a schematic structural diagram of a locking piece according to the second embodiment;

in the figure: 10 is a lamp body, 11 is a mounting groove, 12 is a fastening part, 121 is a saw-toothed convex block, 13 is a device abdicating groove, 14 is a terminal abdicating groove, 141 is a through hole, 15 is a support plate, 16 is a face ring, 17 is a mounting seat, 20 is a light source assembly, 21 is a light source plate, 22 is a driving circuit component, 23 is a plug-in terminal, 30 is a light transmitting plate, 40 is a mounting assembly, 41 is a clamping torsion spring, 411 is a torsion spring main body, 412 is an elastic arm, 42 is a mounting plate, 421 is a mounting end, 422 is a limiting end, 423 is an anti-falling block, 424 is a reducing part, 425 is a limiting block, 426 is a mounting hole, 43 is a locking part, 431 is a threaded section, 432 is a limiting plate, and 433 is.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The utility model discloses a solve the light source board heat-conduction inefficiency that prior art exists, need additionally set up the radiating piece, overall cost is high, the part is many, be difficult to carry out not enough such as automatic assembly, a down lamp is provided, based on the characteristics that the horizontal coefficient of heat conductivity of base plate is high, utilize the side and the lamp body contact of light source board to carry out heat-conduction, improve heat dispersion, and then only utilize the lamp body can accomplish the heat dissipation demand, need not additionally to set up the radiating piece, lamp body through plastic can satisfy the heat dissipation demand.

Example one

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, the down lamp of the quick heat conduction of light source board 21, including lamp body 10, light source subassembly 20, light-passing board 30, installation component 40, light source subassembly 20 includes light source board 21, drive circuit components and parts 22, plug terminals 23, and the LED chip sets up in the one side of light source board 21, light emitting area promptly, and drive circuit components and parts 22 and plug terminals 23 set up in the one side of light source board 21 dorsad light emitting area, and light source board 21 implements as DOB light source board 21 promptly. The inboard bottom surface of lamp body 10 sets up mounting groove 11, and light source subassembly 20 sets up in mounting groove 11, and the side of light source board 21 and the lateral wall contact of mounting groove 11 carry out horizontal heat conduction. The lateral thermal conductivity of the substrate of the light source board 21 can usually reach at least 200, and compared with the thermal conductivity in the thickness direction, the lateral thermal conductivity has the advantage of hundreds of times, so that the heat of the light source board 21 can be quickly and timely conducted to the lamp body 10, and the lamp body 10 can timely dissipate the heat. Furthermore, the utility model discloses do not need additionally to set up the radiating piece, especially aluminium system radiating piece to plastic material's lamp body 10 can reach the heat dissipation demand, not only reduces the part of whole lamp, reduces the cost of whole lamp moreover. In this embodiment, the lamp body 10 is an all-plastic integrated structure, i.e. no additional heat sink is provided.

In order to ensure that the side edge of the light source plate 21 is in closer contact with the side wall of the mounting groove 11, as shown in fig. 6 and 7, in the present embodiment, the side wall of the mounting groove 11 is provided with the fastening portion 12 protruding inward, and the light source plate 21 is interference-fitted into the mounting groove 11 through the fastening portion 12 to ensure that the side edge of the light source plate 21 is effectively in contact with the side wall of the mounting groove 11 for heat conduction. During specific implementation, fastening portion 12 sets up in a plurality of serration lugs 121 of the lateral wall of mounting groove 11 along the periphery, and serration lug 121 can enough keep sufficient installation intensity with the side of light source board 21, and the light source board 21 of being convenient for assembles to mounting groove 11 in addition, does not influence the assembly degree of difficulty, is convenient for realize automatic assembly. The fastening portion 12 may also be a wavy curved protrusion instead of the saw-toothed protrusion 121 according to practical implementation requirements.

The utility model discloses in, lamp body 10 extends face ring 16 through the curved surface transition, on the one hand, provide the inherent function of face ring 16, on the other hand, the position of curved surface transition is avoided blockking the light-emitting formation of light source board 21, and then need not to set up anti-light cup, can satisfy the facula requirement, and then realize holistic frivolousization, lamp body 10 dwarfing promptly, make light source board 21 nearer with the distance of face ring 16, it raises to go out the plain noodles promptly, further under the condition that need not set up anti-light cup, also can satisfy the facula requirement.

The utility model discloses in, the light-passing board 30 realizes exempting from the nail installation through clamping the structure with lamp body 10, guarantees the implementation of automatic assembly. In specific implementation, the transparent plate 30 can be implemented as a flat mirror or a lens; and the surface height of the light-transmitting panel 30 may be close to the height of the face ring 16.

In order to meet the overall safety regulations, the driving circuit component 22 is disposed in the lamp body 10, in this embodiment, the groove bottom of the mounting groove 11 is provided with a recessed yielding groove corresponding to the driving circuit component 22 and the plug terminal 23, the yielding groove is provided with a through hole 141, the plug terminal 23 is exposed outwards through the through hole 141, and an external connection wire is conveniently connected with the plug terminal 23. In general, the relief groove only occupies a part of the area of the groove bottom of the mounting groove 11, and the groove bottom except the relief groove can be used for supporting and fixing the light source plate 21 and providing a certain heat dissipation performance.

In a specific implementation, the LED chips are collectively disposed at the center of the light source board 21, and the driving circuit component 22 and the plug-in terminal 23 are disposed at two ends of the light source board 21 near the edge of the light source board 21, that is, the driving circuit component 22 and the plug-in terminal 23 are disposed around the LED chips. The middle part of the yielding groove extends towards the light source plate 21 to form a support plate 15, the yielding groove is positioned on two sides of the support plate 15, a component yielding groove 13 and a terminal yielding groove 14 are respectively formed corresponding to the driving circuit component 22 and the plug-in terminal 23, the through hole 141 is formed in the terminal yielding groove 14, and the plug-in terminal 23 is exposed outwards through the through hole 141. Specifically, the yielding groove is arranged along the central axis of the mounting groove 11, the support plate 15 is arranged at the central position of the mounting groove 11, and the support plate 15 is formed through a columnar channel which divides the yielding groove into a device yielding groove 13 and a terminal yielding groove 14. In this embodiment, the bottom of the supporting plate 15 is flush with the bottom of the mounting groove 11, the light source plate 21 is locked on the supporting plate 15 by screws, and the supporting plate 15 contacts with the light source plate 21 to further promote heat dissipation.

The utility model discloses a two installation component 40, as shown in fig. 8, fig. 9, installation component 40 clamps torsional spring 41, mounting panel 42 including clamping torsional spring 41, and the torsional spring 41 includes torsional spring main part 411, is located the bullet arm 412 at torsional spring main part 411 both ends, and torsional spring main part 411 forms for the elasticity wire rod coiling to through-hole in the middle of forming. The inward end of the mounting plate 42 is a mounting end 421, the outward end is a limiting end 422, the limiting end 422 is wider than the mounting end 421, and the middle through hole of the torsion spring main body 411 is sleeved on the mounting plate 42 from the mounting end 421 and is limited by the limiting end 422; after the torsion spring 41 is sleeved on the mounting plate 42, the mounting end 421 is fixed to the lamp body 10. During assembly, the clamping torsion spring 41 is sleeved and pushed to the limiting end 422 from the mounting end 421 of the mounting plate 42, and is positioned through the limiting end 422.

In this embodiment, the limiting end 422 of the mounting plate 42 includes an anti-drop block 423, a diameter-reducing portion 424, and a limiting block 425 that are sequentially disposed, the limiting block 425 is disposed at two sides of an end portion of the limiting end 422, the anti-drop block 423 is disposed at two sides of the limiting end 422 close to the mounting end 421, and the diameter-reducing portion 424 is located between the limiting block 425 and the anti-drop block 423; the width of the anti-falling block 423 is smaller than that of the limiting block 425. The anti-falling block 423, the reducing part 424 and the limiting block 425 form an approximately I-shaped structure, and the size of the torsion spring main body 411 for clamping the torsion spring 41 is smaller than the width of the anti-falling block 423. Clamping the torsional spring 41 cover and establishing to spacing end 422 in-process, torsional spring main part 411 receives the extrusion formation elastic deformation of anticreep piece 423 earlier and expands, and then crosses anticreep piece 423 to undergauge portion 424, and torsional spring main part 411 resets, and at the both ends of undergauge portion 424, torsional spring main part 411 receives anticreep piece 423 and stopper 425's spacing respectively, prevents to break away from the both ends of undergauge portion 424. After the assembly of the clamping torsion spring 41 and the mounting plate 42 is completed, the mounting plate 42 is mounted on the lamp body 10. Compared with the prior art, the torsion spring main body 411 does not need to be manually unfolded and clamped into the mounting plate 42, the assembly difficulty is high, and the clamped torsion spring 41 is easy to fall off. The mounting assembly 40 of the present embodiment is simple in structure and facilitates automated assembly.

In this embodiment, the outer side of the lamp body 10 is provided with a mounting seat 17 corresponding to the mounting assembly 40, the mounting end 421 of the mounting plate 42 is provided with a mounting hole 426, and the mounting plate 42 is locked on the mounting seat 17 by a screw through the mounting hole 426. In specific implementation, the mounting holes 426 are long holes formed along the length direction of the mounting plate 42, so that the mounting position of the mounting plate 42 can be adjusted according to implementation requirements, that is, the distance between the two clamping torsion springs 41 is adjusted to meet the mounting holes with different sizes.

Example two

The difference between the first embodiment and the second embodiment is that the mounting assembly 40 has a different structure, in the present embodiment, as shown in fig. 10 and 11, the mounting assembly 40 includes a clamping torsion spring 41 and a locking member 43, the clamping torsion spring 41 includes a torsion spring main body 411 and elastic arms 412 located at two ends of the torsion spring main body 411, and the torsion spring main body 411 is formed by winding an elastic wire and forms a middle through hole. One end of the locking member 43 is a threaded section 431, the other end is a stop plate 432, and the locking member 43 is a mounting member with a screw-like structure. In this embodiment, the outer side of the lamp body 10 is provided with a mounting seat 17 corresponding to the mounting assembly 40, and the mounting seat 17 is provided with a lateral screw hole corresponding to the locking member 43 for matching with the threaded section 431 of the locking member 43 for screwing. During assembly, the threaded section 431 of the locking member 43 penetrates through the middle through hole of the torsion spring main body 411 and is locked on the mounting seat 17, the limiting plate 432 of the locking member 43 forms a top abutting limit with the torsion spring main body 411, and the torsion spring main body 411 is tightly pressed on the mounting seat 17. In this embodiment, the clamping torsion spring 41 is assembled by the locking member 43 in a screwed manner, so that the operation is simple, and the automatic assembly is facilitated.

In this embodiment, a supporting section 433 is disposed between the threaded section 431 of the locking member 43 and the limiting plate 432, an outer diameter of the supporting section 433 is approximately adapted to an inner diameter of the middle through hole of the torsion spring main body 411, and outer diameters of the threaded section 431, the supporting section 433, and the limiting plate 432 are increased progressively. Because the support section 433 is in size adaptation with the middle through-hole of torsional spring main part 411, a minimum clearance is formed between the support section 433 and the torsional spring main part 411, the stability of torsional spring main part 411 in the assembling process can be guaranteed, and the position deviation of the clamped torsional spring 41 in the assembling process is prevented. Meanwhile, the threaded section 431 may be implemented to have a small size, i.e., the torsion spring main body 411 does not need to be supported by the threaded section 431, and correspondingly, the screw hole of the mount 17 is implemented to have a small size. In the case where the size of the mount 17 is the same, the larger the screw hole is, the thinner the wall thickness of the mount 17 is, and the lower the strength is, and the more inconvenient the screwing operation is.

The other parts are the same as the first embodiment.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Changes, modifications, etc. to the above-described embodiments are intended to fall within the scope of the claims of the present invention, as long as they are in accordance with the technical spirit of the present invention.

Claims

1. A downlight, characterized in that it comprises a lamp body, a light source assembly, a light-transmitting plate, and a mounting assembly, and the light source assembly includes a light source plate, a drive circuit component, and a plug-in terminal, and the drive circuit component and the plug-in terminal are arranged on the The side of the light source board facing away from the light-emitting surface; the inner bottom surface of the lamp body is provided with a mounting groove, the light source assembly is arranged in the mounting groove, and the side edge of the light source board is in contact with the side wall of the mounting groove to conduct lateral heat conduction.

2 . The downlight according to claim 1 , wherein the side wall of the installation groove is provided with a fastening portion that protrudes inward, and the light source board is interference-fitted in the installation groove through the fastening portion. 3 .

3 . The downlight according to claim 2 , wherein the fastening portion is a plurality of serrated protrusions arranged on the side wall of the installation groove along the circumference. 4 .

4. The downlight according to claim 1, wherein the lamp body is an all-plastic one-piece structure.

5 . The downlight according to claim 4 , wherein the lamp body extends out of the face ring through a curved surface transition. 6 .

6. The downlight according to any one of claims 1 to 5, wherein the groove bottom of the installation groove is provided with a recessed let-away groove corresponding to the drive circuit components and the plug-in terminals, and the let-away groove is provided with a through hole. , the plug terminals are exposed through the through holes.

7 . The downlight according to claim 6 , wherein the driving circuit components and the plug-in terminals are respectively close to the edge of the light source board, and are arranged at both ends of the light source board; the middle part of the spaced slot extends toward the light source board to form In the support plate, the let-away grooves are located on both sides of the support plate, corresponding to the drive circuit components and the plug-in terminals to form a device let-off groove and a terminal let-off groove, respectively, and through holes are opened in the terminal let-off grooves.

8. The downlight according to claim 1, characterized in that it comprises two mounting components, the mounting components comprise a snap-on torsion spring and a mounting plate, the snap-on torsion spring comprises a torsion spring main body and elastic arms located at both ends of the torsion spring main body , the inward end of the installation plate is the installation end, the outward end is the limit end, and the limit end is wider than the installation end. Limit; the snap-fit torsion spring is sleeved on the mounting plate, and the mounting end is fixed on the lamp body.

9 . The downlight according to claim 8 , wherein the limit end of the mounting plate comprises an anti-separation block, a diameter reducing portion and a limit block arranged in sequence, and the limit blocks are arranged on both sides of the end of the limit end. 10 . , the anti-separation block is arranged on both sides of the limit end close to the installation end, and the diameter reducing part is located between the limit block and the anti-separation block; the width of the anti-separation block is smaller than the width of the limit block.

10. The downlight according to claim 8 or 9, characterized in that, the outer side of the lamp body is provided with a mounting seat corresponding to the mounting component, the mounting end of the mounting plate is provided with a mounting hole, and the screw locks the mounting plate on the mounting plate through the mounting hole. on the mount.

11. The downlight according to claim 1, characterized in that it comprises two mounting components, the mounting components comprise a torsion spring and a locking member, and the torsion spring comprises a torsion spring body and elastic arms located at both ends of the torsion spring body ; One end of the locking member is a threaded section, and the other end is a limit plate; the outer side of the lamp body is provided with a mounting seat corresponding to the installation component; the threaded section of the locking member is penetrated through the middle through hole of the torsion spring main body, and is locked to the mounting seat , the limit plate of the locking piece and the torsion spring main body form an abutment limit, and the torsion spring main body is pressed against the mounting seat.

12 . The downlight according to claim 11 , wherein a support section is provided between the threaded section of the locking member and the limiting plate, and the outer diameter of the support section roughly matches the inner diameter of the middle through hole of the torsion spring main body, 12 . The outer diameter of the threaded section, support section, and limit plate increases.