CN212408422U - a downlight - Google Patents

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. 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, promotes the radiating effect greatly, can realize powerful plastic down lamp. The distance of light source board and face ring is closer, 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 bottom of the lamp body is provided with an opening, and the light source plate is exposed at the position of the opening and can directly radiate heat to the atmosphere; and get rid of inclosed lamp body structure, the heat can in time spread, reduces holistic temperature rise.

Description

Down lamp

Technical Field

The utility model relates to a down lamp technical field, more specifically say, relate to a down lamp.

Background

The down lamp of prior art inevitably must include a plurality of parts of independent setting, including face ring, light source subassembly, light-passing board, anti-light cup, installation component etc. the structure is comparatively complicated, and spare part is more, and consuming time and wasting force on the equipment, the cost is higher. Meanwhile, when the assembly is carried out automatically, the automatic process is relatively complicated, and meanwhile, the heat dissipation effect is not ideal.

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 initiative heat dissipation of reinforcing light source board to the horizontal heat conductivility of make full use of base plate, the heat of light source board diffuses fast to the lamp body, utilizes the lamp body to dispel the heat, does not need additionally to set up the radiating piece, can realize the plastic and the integration of lamp body and light-passing board, spare part is few, and the assembly is simple, is favorable to realizing the automation.

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 and a driving circuit, the lamp body and the light-transmitting plate are molded into an integrated structure, the bottom of the lamp body is open and is provided with an installation groove inwards, and a light through hole is formed in the bottom of the installation groove corresponding to the light emitting range of the light source plate; the light source board sets up in the mounting groove, and the side of light source board and the lateral wall contact of mounting groove carry out horizontal heat conduction.

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 light through hole is formed in the middle of the bottom of the mounting groove, the bottom of the mounting groove forms a limiting ring on the outer edge of the light through hole, and the outer edge of the light source plate abuts against the limiting ring.

As the preferred, the lateral wall of mounting groove is a plurality of buckles that extend inwards, and the tank bottom interval of buckle and mounting groove sets up, and the light source board is located between the tank bottom of buckle and mounting groove.

Preferably, the top surface of the clip is a guide slope inclined toward the mounting groove.

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

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.

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.

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 bottom of the lamp body is provided with an opening, the light source plate is exposed at the position of the opening, and the light source plate can directly radiate heat to the atmosphere, so that the heat radiation performance is improved; and get rid of inclosed lamp body structure, the heat can in time spread, reduces holistic temperature rise, 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. Based on plastic's lamp body, the utility model discloses can further mould plastics lamp body and light-passing board as integral structure, the light source board is direct carries on one's back the dress from open position, and integral structure's lamp body and light-passing board reduce holistic spare part, simplify the assembly. The light source board is installed and positioned through the clamping portion and the limiting portion, nail-free installation is achieved, and automatic assembly is achieved.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is an exploded view of the structure of the first embodiment;

FIG. 3 is a partial enlarged view of the location A of FIG. 2;

FIG. 4 is a cross-sectional view of the first embodiment;

FIG. 5 is a schematic structural diagram of a locking member according to the first embodiment;

fig. 6 is an exploded view of the structure of the lamp body of the second embodiment;

FIG. 7 is a schematic structural view of a mounting assembly according to the first embodiment;

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

in the figure: 10 is a lamp body, 101 is open, 11 is a mounting groove, 12 is a fastening part, 121 is a saw-toothed convex block, 13 is a light through hole, 14 is a limiting ring, 15 is a face ring, 16 is a mounting seat, 17 is a clamping block, 171 is a guide inclined plane, 20 is a light source plate, 21 is a plug 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, 433 is a supporting section, 50 leads and 51 is a plug pin.

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 automation assembly etc. not enough, provide a down lamp, based on the characteristics that the horizontal coefficient of heat conductivity of base plate is high, utilize the side of light source board and lamp body contact to carry out heat-conduction, and through exposing the light source board and promote heat dispersion, improve heat dispersion, and then do not need the dedicated radiating piece of equipment, and can realize plastic lamp body, do benefit to and realize automatic assembly.

Example one

As shown in fig. 1 to 5, the tube light of the present embodiment includes a light body 10, a light source assembly, a transparent plate 30, and a mounting assembly 40, wherein the light source assembly includes a light source plate 20 and a driving circuit. The bottom of the lamp body 10 is provided with an opening 101, and an installation groove 11 is arranged inwards, and a light through hole 13 is arranged at the bottom of the installation groove 11 corresponding to the light emitting range of the light source plate 20; the light source plate 20 is disposed in the mounting groove 11. The LED chip of the light source plate 20 is located within the range of the light passing hole 13, and thus light can be emitted from the light passing hole 13. The side edge of the light source plate 20 is in contact with the side wall of the mounting groove 11 to conduct lateral heat conduction. The lateral thermal conductivity of the substrate of the light source board 20 can usually reach at least 200, which has a hundred-fold advantage compared to the thermal conductivity in the thickness direction thereof, so that the heat of the light source board 20 can be quickly and timely conducted to the lamp body 10, and the heat can be timely dissipated through the lamp body 10. 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.

During the assembly, light source board 20 can be installed from the lamp body 10 outside, carries out the dress from the bottom of lamp body 10 promptly, and operating space is sufficient, the automatic assembly of being convenient for. Based on the utility model discloses a back of body dress mode can mould plastics lamp body 10 and light-passing board 30 as integral structure, further reduces holistic spare part, correspondingly, simplifies assembly process, more is favorable to adopting automatic assembly.

In order to ensure that the contact between the side edge of the light source plate 20 and the side wall of the mounting groove 11 is tighter, as shown in the figure, in the present embodiment, the side wall of the mounting groove 11 is provided with the fastening portion 12 protruding inwards, and the light source plate 20 is interference-fitted in the mounting groove 11 through the fastening portion 12 to ensure that the side edge of the light source plate 20 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 20, and the light source board 20 of being convenient for moreover assembles to mounting groove 11 in, 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 15 through the curved surface transition, on the one hand, provide the inherent function of face ring 15, on the other hand, the position of curved surface transition is avoided blockking the light-emitting formation of light source board 20, 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 20 nearer with the distance of face ring 15, go out the plain noodles promptly and raise, further under the condition that need not set up anti-light cup, also can satisfy the facula requirement.

In order to realize the nail-free installation of light source board 20, the lateral wall of mounting groove 11 is provided with a plurality of buckles 17 that extend inwards, and buckle 17 sets up with the tank bottom interval of mounting groove 11, and light source board 20 is located between buckle 17 and the tank bottom of mounting groove 11. During the installation, push into light source board 20 from the outside of lamp body 10 towards mounting groove 20 for light source board 20 crosses buckle 17, and is located mounting groove 11, and then light source board 20 is the tight fit just between the tank bottom of buckle 17 and mounting groove 11, realizes light source board 20's the nail-free installation. When people assemble the product, the product can be assembled by hands without tools; when carrying out automatic assembly, the straight line assembly action makes the automation process extremely simplify.

In order to facilitate the assembly of the light source board 20, the top surface of the catch 17 is a guide slope 171 inclined toward the mounting groove 11, and the light source board 20 can more easily pass over the catch 17 when the light source board 20 is pressed with the guide slope 171. Meanwhile, the inclined guide surface 171 is arranged so that the thickness of the inward side of the buckle 17 is smaller, and when the buckle is extruded with the light source board 20, elastic deformation is formed more easily, which is more favorable for assembling the light source board 20.

During specific implementation, the light through hole 13 is formed in the middle of the bottom of the mounting groove 11, the bottom of the mounting groove 11 forms a limiting ring 14 on the outer edge of the light through hole 13, and the outer edge of the light source plate 20 abuts against the limiting ring 14 and is tightly fitted between the limiting ring 14 and the buckle 17. The size of the light through hole 13 can be designed to be as large as possible, and only the limiting ring 14 with a certain width is required to be preset at the bottom of the installation groove 11. The light source board 20 of back of the body dress is stably positioned in predetermined position, and when the wire was pegged graft, under the fixed action of spacing ring 14 and buckle 17, help carrying out wire 50 and peg graft. In this embodiment, the light source board 20 is provided with a plug terminal 21, and the plug pin 51 of the wire 50 is plugged with the plug terminal 21. In specific implementation, the light source module can be implemented as a DOB light source board 20, that is, the driving circuit is integrated on the light emitting surface of the light source board 20, and then the light source module can be connected to an external power source through a wire 50. Alternatively, the light source module is implemented as an external driving circuit, and the driving circuit is connected to the light source board 20 through the conducting wire 50, and meanwhile, the driving circuit is further connected to an external power source.

The utility model discloses a two installation component 40, installation component 40 including clamping torsional spring 41, locking part 43, clamp torsional spring 41 and include torsional spring main part 411, be located the bullet arm 412 at torsional spring main part 411 both ends, torsional spring main part 411 forms for the elasticity wire rod coiling to through-hole in the middle of forming. 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.

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. 6 to 8, the mounting assembly 40 includes a clamping torsion spring 41 and a mounting plate 42, 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. 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.

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 (12)

1. A down lamp comprises a lamp body, a light source component, a light-transmitting plate and a mounting component, wherein the light source component comprises a light source plate and a driving circuit; the light source board sets up in the mounting groove, and the side of light source board and the lateral wall contact of mounting groove carry out horizontal heat conduction.

2. A downlight according to claim 1, wherein a side wall of the mounting groove is provided with a fastening portion that protrudes inward, and the light source plate is interference-fitted into the mounting groove through the fastening portion.

3. A downlight as claimed in claim 2 wherein the fastening portion is a plurality of serrated projections provided along the circumference on the side wall of the mounting slot.

4. A downlight according to claim 1, wherein the light-passing hole is provided at a middle position of a bottom of the mounting groove, the bottom of the mounting groove forms a limit ring at an outer edge of the light-passing hole, and an outer edge of the light source plate abuts against the limit ring.

5. A downlight according to any one of claims 1 to 4, wherein the side wall of the mounting slot has a plurality of inwardly extending catches, the catches being spaced from the base of the mounting slot, the light source board being located between the catches and the base of the mounting slot.

6. A downlight according to claim 5 wherein the top surface of the catch is a guide ramp which slopes towards the mounting slot.

7. A downlight according to claim 1 wherein the body extends beyond the face ring through a curved transition.

8. The down lamp according to claim 1, comprising two mounting assemblies, wherein the mounting assemblies comprise a clamping torsion spring and a locking part, the 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.

9. A down lamp according to claim 8, wherein a support section is provided between the threaded section of the locking member and the limit plate, the outer diameter of the support section substantially matches the inner diameter of the middle through hole of the torsion spring body, and the outer diameters of the threaded section, the support section and the limit plate increase progressively.

10. The down lamp according to claim 1, comprising two mounting assemblies, wherein the mounting assemblies comprise 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.

11. A down lamp as claimed in claim 10, wherein the limiting end of the mounting plate comprises an anti-drop block, a reducing part and a limiting block which are arranged in sequence, the limiting block is arranged at two sides of the end part of the limiting end, the anti-drop block is arranged at two sides of the limiting end close to the mounting end, and the reducing part is arranged between the limiting block and the anti-drop block; the width of the anti-falling block is smaller than that of the limiting block.

12. A downlight according to claim 10 or claim 11 wherein the outer side of the lamp body is provided with a mounting socket corresponding to the mounting assembly, the mounting end of the mounting plate being provided with a mounting hole through which a screw passes to lock the mounting plate to the mounting socket.

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