CN210373123U

CN210373123U - Cylinder lamp

Info

Publication number: CN210373123U
Application number: CN201921635963.3U
Authority: CN
Inventors: 金子焯
Original assignee: Taizhou Hemi Electronic Technology Co Ltd
Current assignee: Taizhou Hemi Electronic Technology Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-04-21
Anticipated expiration: 2029-09-26

Abstract

The utility model provides a down lamp, which comprises a lamp body, wherein one end of the lamp body is provided with a light source, the other end of the lamp body is provided with an outer cover, a cavity is formed between the outer cover and the lamp body, and a circuit board is arranged in the cavity; the cavity is internally provided with a bracket connected with the lamp body, the circuit board is arranged on the end part of the bracket far away from the lamp body, and a gap is formed between the circuit board and the bracket. When the heat dissipation structure is used, air can flow in the gap, so that heat dissipation is carried out on the circuit board, the temperature of the circuit board is not easy to rise, and the service life of the circuit board are not easy to be affected. The lamp body is separated from the circuit board through the support, so that heat generated by the light source is not easily transferred to the circuit board. The support mounting is on the tip of lamp body for support protrusion in the outer wall of lamp body, user like this when connecting the circuit board on the support, user's hand or the work piece that uses all are difficult for touching the outer wall of lamp body, make the installation of circuit board become comparatively convenient.

Description

Cylinder lamp

Technical Field

The utility model relates to a lamps and lanterns, especially, relate to a down lamp.

Background

At present, chinese patent with publication number CN206093764U discloses a LED lamp tube, including the lamp body and with lamp body complex lid, the bottom of lamp body is provided with the lamp plate, is provided with the LED lamp on the lamp plate, the sunken cavity that is formed with in top of lamp body, the inside circuit board that is provided with of cavity, and the circuit board is contradicted with the bottom of cavity, the lid closes the opening part of cavity. In the use, the LED lamp can produce a large amount of heats, in order to reduce the thermal accumulation, generally can select the metal lamp body that the heat conductivity is good for use, and the metal lamp body that the heat conductivity is good can directly conduct the partial heat that LED produced to the circuit board on for the temperature rise of circuit board causes great influence to the use and the life-span of circuit board.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a down lamp, its advantage that has the use and the life-span of circuit board and is difficult for receiving the influence.

In order to solve the technical problem, the technical scheme of the utility model is that: a down lamp comprises a lamp body, wherein a light source is arranged at one end of the lamp body, an outer cover is arranged at the other end of the lamp body, a cavity is formed by buckling the outer cover and the lamp body, a circuit board is arranged in the cavity, and the circuit board is electrically connected with the light source; the lamp body is arranged in the cavity, the bracket is installed on the lamp body, the circuit board is arranged on the end part, away from the lamp body, of the bracket, and a gap is formed between the circuit board and the bracket.

Through above-mentioned technical scheme, separate lamp body and circuit board through the support, the support of the poor plastics material of heat conductivity can be chooseed for use to the support, and the heat that the light source produced is difficult for transmitting to the circuit board like this for the life and the life-span of circuit board are difficult for receiving the influence. A gap is formed between the support and the circuit board, and when the heat dissipation device is used, air can flow in the gap, so that the circuit board is cooled, the temperature of the circuit board is not easy to rise, and the service life of the circuit board is further ensured. The support is arranged at the end part of the lamp body and protrudes out of the outer wall of the lamp body, so that when a user connects the circuit board to the support, the hand of the user or a workpiece used by the user is not easy to touch the outer wall of the lamp body, and the installation process of the circuit board is more convenient.

Preferably, the support includes connecting plate and pillar, the connecting plate is installed on the lamp body, the pillar set up in the connecting plate deviates from on the tip of lamp body, the circuit board is installed the pillar is kept away from on the tip of connecting plate.

Through above-mentioned technical scheme, can have great area of contact between connecting plate and the lamp body for the connecting plate can comparatively stable connection on the lamp body. The support column is used for supporting the circuit board away from the connecting board, so that a gap for air circulation is formed between the circuit board and the connecting board. And when in use, the control screw penetrates through the circuit board and is in threaded connection with the support column, so that the circuit board is pressed on the support column. The setting of pillar makes to have longer screw thread length of closure between support and the screw for be connected between circuit board and the support more stable.

Preferably, a positioning column is arranged at the end part of the supporting column facing the circuit board, and a positioning hole for the positioning column to extend into is formed in the circuit board.

Through the technical scheme, in the process of installing the circuit board on the support, the positioning column is firstly controlled to penetrate through the positioning hole, and the circuit board can be limited to rotate at a large angle relative to the support by the cooperation of the positioning column and the positioning hole, so that the installation process of the circuit board is more convenient and more accurate.

Preferably, the support further comprises a convex column, one end of the convex column is connected to the end, deviating from the lamp body, of the connecting plate, the other end of the convex column abuts against the circuit board, and the support is in screw connection with the lamp body through the convex column.

Through above-mentioned technical scheme, control screw passes the lamp body and with projection threaded connection to this compresses tightly lamp body and support and links together. The setting of post makes to have longer screw thread length of screwing between support and the screw for be connected between support and the lamp body more stable.

Preferably, the outer wall of the pillar is connected to the outer wall of the convex pillar, and the pillar and the convex pillar are integrally formed.

Through above-mentioned technical scheme, link together pillar and projection to this structural strength who increases pillar and projection, and then can stable connection between assurance lamp body, support and the circuit board.

Preferably, a connecting column is arranged on the inner wall of the outer cover, the outer wall of the connecting column is connected with the inner wall of the outer cover, and the outer cover is connected with the lamp body through the connecting column and the lamp body through screws.

Through above-mentioned technical scheme, during the equipment, control screw passes and threaded connection on the spliced pole from the lamp body for compress tightly between lamp body and the dustcoat and link together. The bolt is connected to the connecting column, so that the situation that the strength of the outer cover is reduced due to threaded connection with the bolt is avoided. The outer wall of the connecting column is connected with the inner wall of the outer cover together, so that the structural strength of the connecting column and the structural strength of the outer cover are improved.

Preferably, the inner wall of the outer cover is provided with a heat dissipation structure, and the heat dissipation structure comprises a plurality of channels which are arranged on the inner wall of the outer cover and are arranged in a staggered manner.

Through above-mentioned technical scheme, set up a plurality of passageways on the inner wall of dustcoat, help increasing the area of contact of dustcoat and cavity in air for heat in the cavity can transmit to the dustcoat fast, and the heat that contains on the dustcoat afterwards can be via in outer wall transmission to the outside air.

Preferably, the outer wall of the outer cover is provided with reinforcing ribs which correspond to the channels one to one.

Through above-mentioned technical scheme, set up the strengthening rib on the dustcoat outer wall and can play the intensive effect to the structural strength of dustcoat for the dustcoat is difficult for taking place to damage. Simultaneously the setting of strengthening rib can increase the area of contact of lamp body and outside air for the heat that contains on the lamp body can comparatively transmit to the external world fast.

Preferably, the light source includes lamp plate and a plurality of LED lamp, and is a plurality of the LED lamp with the axis of lamp plate is central circumference evenly distributed.

Through above-mentioned technical scheme, the illuminating effect of the LED that circumference evenly set up is better.

Preferably, the lamp body deviates from a groove is formed in the end part of the circuit board, the light source is installed in the groove, an annular groove is formed in the position, close to the inner wall of the groove opening, of the groove, and a light-passing plate is connected in the annular groove in a clamping mode.

Through above-mentioned technical scheme, install the light source in the recess for the light source is difficult for touching external article at the in-process of transportation, makes the light source be difficult for taking place to damage, uses the light-passing board to cover the notch of recess, makes external dust be difficult for entering into in the recess and attached to on the light source.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for showing the appearance of the embodiment;

FIG. 2 is a schematic cross-sectional view of an embodiment, primarily used to show the connections of the embodiment;

FIG. 3 is an exploded view of the embodiment, primarily to show the components of the embodiment;

FIG. 4 is an exploded view of the embodiment, primarily used to show the internal shape of the housing;

fig. 5 is a schematic structural diagram of the bracket, which is mainly used for showing the appearance of the bracket.

Reference numerals: 1. a lamp body; 2. a light source; 3. a housing; 4. a cavity; 5. a circuit board; 6. a support; 61. a connecting plate; 62. a pillar; 63. a convex column; 7. a void; 8. connecting columns; 9. a heat dissipation structure; 91. a channel; 10. reinforcing ribs; 11. a groove; 12. a ring groove; 13. a light-transmitting plate; 14. a wire passing hole; 15. threading holes; 16. a through hole; 17. connecting grooves; 18. a wire outlet hole; 19. a through hole; 20. heat dissipation holes; 21. a lamp panel; 22. an LED lamp; 23. a positioning column; 24. and (7) positioning the holes.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

A down lamp, as shown in fig. 1 and 2, comprises a lamp body 1, a light source 2 arranged on one end of the lamp body 1, a circuit board 5 arranged on the end part of the lamp body 1 far away from the light source 2, and an outer cover 3.

As shown in fig. 3 and 4, the lamp body 1 is made of a metal material with good thermal conductivity, and a wire passing hole 14 through which a power supply wire passes is formed in the center of the lamp body 1. Offer recess 11 on the tip that lamp body 1 deviates from circuit board 5, and the central line of recess 11 and the coincidence of the central line of lamp body 1, offer annular 12 on the inner wall that recess 11 is close to notch one side, and the central line of annular 12 and the coincidence of the central line of recess 11, the card has light-passing board 13 in the annular 12, light-passing board 13 seals the notch of recess 11.

The light source 2 is arranged in the groove 11, and the light source 2 is connected on the inner wall of the groove 11 close to the circuit board 5 through screw compression. In this embodiment, light source 2 includes lamp plate 21 and the LED lamp 22 of electricity connection on lamp plate 21, and lamp plate 21's center department is provided with and crosses the through wires hole 15 of wire hole 14 UNICOM, and the electric wire on lamp plate 21 passes through wires hole 15 in proper order and crosses wire hole 14 and finally the electricity is connected on circuit board 5, is provided with a plurality of locating holes 24 on lamp plate 21, and a plurality of locating holes 24 use through wires hole 15 as central circumference evenly distributed. The number of the LED lamps 22 is a plurality and the LED lamps are circumferentially and uniformly distributed by taking the threading hole 15 as a center.

As shown in fig. 3 and 5, a bracket 6 is disposed between the lamp body 1 and the circuit board 5, the bracket 6 is made of plastic with poor thermal conductivity, and the bracket 6 includes a connecting plate 61, a pillar 62 and a convex pillar 63. The connecting plate 61 is installed on the end face of the lamp body 1 departing from the light source 2, and the center of the connecting plate 61 is provided with a through hole 16 for the electric wire of the light source 2 to pass through. The support posts 62 are fixedly connected to the end surface of the connecting plate 61 facing away from the lamp body 1, and the support posts 62 extend in the axial direction of the connecting plate 61, in this embodiment, the number of the support posts 62 is three, and the three support posts 62 are circumferentially and uniformly distributed by taking the through hole 16 as a center. The end of the pillar 62 departing from the connecting plate 61 is coaxially and integrally formed with a positioning column 23, the end of the positioning column 23 away from the pillar 62 is coaxially provided with a connecting groove 17 with a circular notch, and the connecting groove 17 extends into the protruding column 62. Convex column 63 fixed connection is on the terminal surface that connecting plate 61 deviates from lamp body 1, and convex column 63 extends along the axial of connecting plate 61, and in this embodiment, the quantity of convex column 63 is three, and three convex columns 63 use lead to line hole 16 as central circumference evenly distributed, and the lateral wall of convex column 63 links together with the lateral wall of pillar 62 to this promotes the structural strength of convex column 63 and pillar 62. The protruding column 63 is used for connecting a screw passing through the light source 2 and the lamp body 1, a connecting groove 17 is coaxially formed on an end portion of the protruding column 63 facing the lamp body 1, and the connecting plate 61 is penetrated through the connecting groove 17.

As shown in fig. 2 and 3, the circuit board 5 is disposed on an end portion of the bracket 6 away from the lamp body 1, a gap 7 for heat dissipation is formed between the circuit board 5 and the bracket 6, the circuit board 5 abuts against end portions of the pillar 62 and the boss 63, a screw in threaded connection with the pillar 62 penetrates through the circuit board 5, and the screw is used for pressing the circuit board 5 on the bracket 6. An outlet hole 18 is arranged at the center of the circuit board 5, and the electric wire of the light source 2 passes through the outlet hole 18 and is electrically connected on the circuit board 5.

As shown in fig. 2 and 4, the cover 3 is fastened to the end of the lamp body 1 where the circuit board 5 is mounted, and the cover 3 is fastened to the lamp body 1 to form a cavity 4, and the circuit board 5 and the bracket 6 are located inside the cavity 4. The side wall of the outer cover 3 is provided with a through hole 19, the through hole 19 penetrates through the end part of the outer cover 3 close to the lamp body 1, and the electric wire connected with the circuit board 5 penetrates through the through hole 19 and is electrically connected with an external power supply. Be provided with spliced pole 8 on the inner wall of dustcoat 3, spliced pole 8 extends along the axial of dustcoat 3, the outer wall of spliced pole 8 and the inner wall integrated into one piece of dustcoat 3, and dustcoat 3 passes through spliced

pole

8 and 1 screw connection of lamp body. A plurality of louvres 20 have been seted up on the dustcoat 3, are provided with a plurality of circumference evenly distributed's heat radiation structure 9 on the inner wall of dustcoat 3, and every heat radiation structure 9 all includes the passageway 91 of a plurality of crisscross settings, and integrated into one piece has the strengthening rib 10 with passageway 91 one-to-one on the outer wall of dustcoat 3.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A down lamp comprises a lamp body (1), wherein a light source (2) is arranged at one end of the lamp body (1), an outer cover (3) is arranged at the other end of the lamp body (1), the outer cover (3) and the lamp body (1) are buckled to form a cavity (4), a circuit board (5) is installed in the cavity (4), and the circuit board (5) is electrically connected with the light source (2); the method is characterized in that: be provided with support (6) in cavity (4), support (6) are installed on lamp body (1), circuit board (5) set up in support (6) are kept away from on the tip of lamp body (1), just circuit board (5) with be formed with space (7) between support (6).

2. A downlight according to claim 1, wherein: support (6) are including connecting plate (61) and pillar (62), connecting plate (61) are installed on lamp body (1), pillar (62) set up in connecting plate (61) deviate from on the tip of lamp body (1), circuit board (5) are installed pillar (62) are kept away from on the tip of connecting plate (61).

3. A downlight according to claim 2, wherein: the end part, facing the circuit board (5), of the support column (62) is provided with a positioning column (23), and the circuit board (5) is provided with a positioning hole (24) for the positioning column (23) to extend into.

4. A downlight according to claim 2, wherein: the support (6) further comprises a convex column (63), one end of the convex column (63) is connected to the end, deviating from the lamp body (1), of the connecting plate (61), the other end of the convex column (63) abuts against the circuit board (5), and the support (6) is connected with the lamp body (1) through the convex column (63) in a screw mode.

5. A downlight according to claim 4, wherein: the outer wall of the strut (62) is connected to the outer wall of the convex column (63), and the strut (62) and the convex column (63) are integrally formed.

6. A downlight according to claim 1, wherein: the lamp is characterized in that a connecting column (8) is arranged on the inner wall of the outer cover (3), the outer wall of the connecting column (8) is connected with the inner wall of the outer cover (3), and the outer cover (3) is connected with the lamp body (1) through the connecting column (8) in a screw mode.

7. A downlight according to claim 1, wherein: be provided with heat radiation structure (9) on the inner wall of dustcoat (3), heat radiation structure (9) include a plurality of set up on the inner wall of dustcoat (3) and be passageway (91) of crisscross setting.

8. A downlight according to claim 7, wherein: and reinforcing ribs (10) which correspond to the channels (91) one by one are arranged on the outer wall of the outer cover (3).

9. A downlight according to claim 1, wherein: light source (2) include lamp plate (21) and a plurality of LED lamp (22), a plurality of LED lamp (22) with the axis of lamp plate (21) is central circumference evenly distributed.

10. A downlight according to claim 1, wherein: the lamp body (1) deviates from set up on the tip of circuit board (5) fluted (11), install light source (2) in recess (11), annular (12) have been seted up to inner wall department that recess (11) are close to the notch, the joint has light-passing board (13) in annular (12).