CN209909710U - LED down lamp with heat dissipation function - Google Patents

Abstract

The utility model discloses a LED down lamp with heat dissipation function relates to the technical field of lamps and lanterns, including base and lamp body, the base is the barrel that cavity set up including inside to and set up the power apron at the barrel top, the lamp body sets up in the barrel bottom, barrel week side is provided with the fin along its length direction, the one end that the barrel was kept away from to the fin is provided with the conducting strip, the conducting strip with the fin sets up perpendicularly, and has the space between the two adjacent conducting strips. Due to the fact that the radiating fins and the heat conducting fins perpendicular to the radiating fins are arranged, gaps exist between every two adjacent radiating fins, the radiating area is increased, meanwhile, convection of air is facilitated, and therefore the radiating effect of the LED down lamp is improved.

Description

LED down lamp with heat dissipation function

Technical Field

The utility model relates to a technical field of lamps and lanterns, more specifically say, it relates to a LED down lamp with heat dissipation function.

Background

The down lamp is embedded into a ceiling, emits light which radiates downwards, is mainly matched with a main illuminating lamp for lighting the weak position of the main illuminating lamp in the corner of a room under the action of light radiation, and is sometimes used for creating dim and warm visual effects, so that the down lamp is widely applied to the field of house decoration.

Because LED down lamp can produce the heat when using, if can not make the heat to external diffusion effectively, not only can influence its life, can appear the problem of light decay etc. moreover.

Traditional LED down lamp is CN 204345484U's chinese utility model patent as the bulletin number of authorizing, discloses a LED lamp, and this lamp mainly forms by lamp body and power lid combination, the lamp body top is equipped with built-in power, forms a whole with the lamp body, the power lid with the lamp body is connected, just still be equipped with in the lamp body and be used for radiating reflection of light paper, lamp plate and diffuser plate, lamp body shell inlays high heat conduction pure aluminum material for the heat dissipation plastic.

The heat dissipation of LED down lamp among the prior art is through giving off the heat that will produce in to the air along heat dissipation plastic and its inside pure aluminium material to reach the radiating effect.

But the heat conductivility of heat dissipation plastic is relatively poor, and the pure aluminium material that wherein packs also can not be many, and when down lamp power was great, the heat that the down lamp produced can't be in time lost to influence its time life.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a LED down lamp with heat dissipation function, through be provided with the fin and with the perpendicular conducting strip that sets up of fin, and there is the clearance between the two adjacent fins, when increasing heat radiating area, also is favorable to the air to form the convection current to improve the radiating effect of LED down lamp.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a LED down lamp with heat dissipation function, includes base and lamp body, the base is the barrel that cavity set up including inside to and set up the power apron at the barrel top, the lamp body sets up in the barrel bottom, barrel week side is provided with the fin along its length direction, the one end that the barrel was kept away from to the fin is provided with the conducting strip, the conducting strip with the fin sets up perpendicularly, and has the space between two adjacent conducting strips.

Through adopting above-mentioned technical scheme, through being provided with the fin and with the perpendicular conducting strip that sets up of fin for the radiating mode is by original along heat dissipation plastic and its inside pure aluminium material give off in to the air, changes into the heat and is transmitted to the fin along the barrel, is transmitted to the conducting strip along the fin again, has increased air and thermal area of contact, thereby has improved the radiating effect of LED down lamp, makes the life of LED down lamp improve.

Because there is the space between two adjacent conducting strips for external low temperature air and inside high temperature air easily exchange, be favorable to the air flow to form the convection current, thereby improved the radiating effect of LED down lamp, make the life of LED down lamp improve.

The utility model discloses further set up to: the fin is arc setting, and winds barrel circumference syntropy bending.

Through adopting above-mentioned technical scheme for carry out the water conservancy diversion to the air current for external low temperature air and inside high temperature air can not collide in the exit, lead to the unable fine exchange of air, thereby influence the radiating effect of LED down lamp.

Be the arc setting through the fin for carry out the water conservancy diversion to the air current, be favorable to external low temperature air and inside high temperature air easily to exchange, thereby easy air flow forms the convection current, thereby has improved the radiating effect of LED down lamp, makes the life of LED down lamp improve.

The utility model discloses further set up to: the heat-conducting fin is arranged in an arc shape, and the arc shape is matched with the arc shape of the barrel body.

Through adopting above-mentioned technical scheme for carry out the water conservancy diversion to the air current, make things convenient for between external air enters into the fin, improve the mobility of air to easily air current forms the convection current, thereby improved the radiating effect of LED down lamp, make the life of LED down lamp improve.

The utility model discloses further set up to: and two ends of the heat conducting sheet are provided with fillets.

Through adopting above-mentioned technical scheme, prevent that the workman from being cut by the both sides of conducting strip at installation LED down lamp, improve workman's operational safety.

The utility model discloses further set up to: the heat transfer plates are arranged on two side walls of the radiating fin, the heat transfer plates are arranged in an inclined mode, and one ends, far away from the radiating fin, of the heat transfer plates are arranged close to the heat conducting fins.

Through adopting above-mentioned technical scheme, further improve air and thermal area of contact, improve the radiating efficiency and the effect of down lamp.

The utility model discloses further set up to: the side walls of the periphery of the barrel are provided with heat dissipation holes, and a filter screen is arranged in the barrel.

Through adopting above-mentioned technical scheme, prevent that the heat from piling up in the barrel, make things convenient for the heat to give off in the air, improve the radiating effect of down lamp.

Through being provided with the filter screen, prevent that the dust from entering into and piling up in a large number in the inherent barrel of barrel, improve the radiating effect and the security of down lamp.

The utility model discloses further set up to: the number of the heat dissipation holes at the top and the bottom of the cylinder is more than that of the heat dissipation holes at the middle position of the cylinder.

Through adopting above-mentioned technical scheme, because the lamp body sets up in the barrel bottom, the temperature that consequently is located the barrel bottom is higher, and the heat easily rises, and the temperature that consequently is located the enemy top is higher, and the louvre quantity that is located barrel intermediate position department is more than through the louvre quantity that is located barrel top and bottom, and the heat in the barrel of being convenient for scatters and disappears, improves the radiating effect of down lamp.

The utility model discloses further set up to: all be provided with the fixing subassembly on two heat conduction pieces with the barrel centre of a circle as the symmetric center, the fixing subassembly including connect with connection piece, the fixed pivot that sets up on the connection piece of the adjacent heat conduction piece of heat conduction piece, and the cover is established change epaxial torsional spring, connection piece and two be formed with between the heat conduction piece and hold the chamber, it has seted up the mounting hole to hold the intracavity, the pivot both ends are fixed respectively on the both ends wall of mounting hole, just torsional spring one end is connected on holding the chamber, and the other end is connected with the butt plate, just the butt plate is close to the lamp body setting in the one end of keeping away from the torsional spring under natural state.

By adopting the technical scheme, the down lamp is convenient to install and the operation convenience for installing the down lamp is improved by arranging the fixing component. Through the mutual cooperation between torsional spring and the tight board of support for after the down lamp installation is accomplished, the butt board supports tightly on the ceiling, thereby accomplishes the fixed to the down lamp.

The utility model discloses further set up to: the butt joint board is the setting of U type, and U type open-ended wherein one end with the torsional spring is connected, other end an organic whole be provided with pivot parallel arrangement's connecting block, just the connecting block stretches into inside and the torsional spring looks joint of torsional spring.

Through adopting above-mentioned technical scheme, make things convenient for the installation of torsional spring and butt board, improve workman's installation maneuverability.

The utility model discloses further set up to: the one end that the torsional spring was kept away from to butt joint board is pasted and is provided with the elasticity rubber layer, just butt joint board inside still is provided with the strengthening rib.

Through adopting above-mentioned technical scheme, improve the frictional force between butt joint board and the ceiling to he improves the fastness that LED down lamp is fixed.

Be provided with the strengthening rib for improve the intensity of butt joint board, thereby improve butt joint board and to the fixing power of down lamp, improve the fixed fastness of down lamp.

Compared with the prior art, the utility model has the advantages that:

1. the radiating fins and the heat conducting fins which are perpendicular to the radiating fins are arranged, and a gap is formed between every two adjacent radiating fins, so that the radiating area is increased, and meanwhile, convection of air is facilitated, and the radiating effect of the LED down lamp is improved;

2. through being provided with the louvre, and the louvre quantity that is located barrel top and bottom is more than the louvre quantity that is located barrel intermediate position department, makes things convenient for the heat to give off in the air, improves the radiating effect of down lamp.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic diagram of the internal structure of the present invention.

Reference numerals: 100. a base; 110. a barrel; 120. a power supply cover plate; 121. a plug wire seat; 111. a card slot; 112. a heat sink; 113. a heat conductive sheet; 114. a heat transfer plate; 115. heat dissipation holes; 116. a filter screen; 200. a holding assembly; 210. a rotating shaft; 220. a torsion spring; 230. a butt joint plate; 231. connecting blocks; 232. reinforcing ribs; 233. an elastic rubber layer; 300. a lamp body; 310. a power supply assembly.

Detailed Description

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

Referring to fig. 1 and 2, an LED tube lamp with a heat dissipation function includes a base 100 and a lamp body 300, the base 100 includes a cylinder 110 with a hollow interior, and a power cover plate 120 fixed on the top of the cylinder 110 by screws. The lamp body 300 is fixed to the bottom end of the barrel 110 by screws, and the top end of the lamp body 300 is provided with a built-in power module 310 integrally formed with the lamp body 300. The power cover is provided with the plug wire seat 121 through the screw fixation, the plug wire seat 121 is electrically connected with the power supply component 310, and the electric wire is stored in the barrel 110, so that the installation of the down lamp is facilitated.

Referring to fig. 1 and 2, in the present embodiment, the plug wire holder 121 is disposed at one side of the power cover 120 and close to the side, and the barrel 110 is provided with a slot 111 engaged with the plug wire holder 121.

Referring to fig. 2 and 3, the heat dissipation fins 112 are welded to the circumferential side of the cylinder 110, and the heat dissipation fins 112 are disposed along the length direction of the cylinder 110, that is, the heat dissipation fins 112 are disposed at equal length to the cylinder 110. In the present embodiment, the heat dissipation fins 112 are disposed in an arc shape and are bent in the same direction around the circumference of the cylinder 110.

Referring to fig. 2 and 3, the heat-conducting fins 113 are integrally disposed at one end of the heat sink 112 away from the cylinder 110, the heat-conducting fins 113 are perpendicular to the heat sink 112, and a gap is formed between two adjacent heat-conducting fins 113. In this embodiment, the heat-conducting plate 113 is disposed in an arc shape, and the arc shape is matched with the arc shape of the cylinder 110. Meanwhile, the two ends of the heat-conducting fin 113 are rounded.

Referring to fig. 2 and 3, heat transfer plates 114 are integrally provided on both side walls of the heat sink 112, and the heat transfer plates 114 are disposed obliquely. In the present embodiment, an end of the heat transfer plate 114 away from the heat sink 112 is disposed close to the heat conductive fin 113.

In the present embodiment, the heat sink 112, the heat conducting fins 113 and the heat conducting plate 114 are all made of aluminum heat sink 112 commonly used in the market, and the barrel 110 is made of aluminum, so as to reduce the weight of the downlight and improve the heat dissipation effect of the downlight.

Referring to fig. 2 and 3, heat dissipation holes 115 are formed in the circumferential side wall of the cylinder 110, and a filter screen 116 is disposed inside the cylinder 110. The two ends of the filter screen 116 are connected to form a circular ring matched with the inner diameter of the cylinder 110, so that the filter screen 116 can be directly placed in the cylinder 110, the installation by workers is convenient, and the power module 310 and the electric wire are accommodated in the circular ring.

In this embodiment, the number of the heat dissipation holes 115 at the top and the bottom of the barrel 110 is greater than the number of the heat dissipation holes 115 at the middle position of the barrel 110, so as to improve the heat dissipation performance of the LED tube lamp.

Referring to fig. 2 and 3, the two heat-conducting fins 113 having the center of the circle of the cylinder 110 as the symmetry center are both provided with the holding assembly 200, and the holding assembly 200 includes a rotating shaft 210 fixedly disposed on the heat-conducting fins 113 and a torsion spring 220 sleeved on the rotating shaft 210. One end of the torsion spring 220 is clamped on the cylinder 110, and the other end is connected with a contact plate 230. And under natural state, the one end that torsional spring 220 was kept away from to butt board 230 is close to the setting of lamp body 300 for after the down lamp installation is accomplished, the one end and the ceiling looks butt that torsional spring 220 was kept away from to butt board 230, is used for fixed LED down lamp, accomplishes the installation and the fixed of LED down lamp.

Referring to fig. 2 and 3, the abutting plate 230 is U-shaped, one end of the U-shaped opening is welded to the torsion spring 220, the other end of the U-shaped opening is integrally provided with a connecting block 231 parallel to the rotating shaft 210, and the connecting block 231 extends into the torsion spring 220 and is clamped to the torsion spring 220. Simultaneously, the inside still an organic whole of butt plate 230 is provided with torsional spring 220 parallel arrangement's strengthening rib 232 for improve butt plate 230's intensity, improve the fixed fastness of LED down lamp.

Referring to fig. 2 and 3, the rotating shaft 210 is divided into two sections, one of the rotating shafts 210 is welded to any one of the heat-conducting fins 113, the other rotating shaft 210 is welded to the heat-conducting fin 113 adjacent to the one heat-conducting fin 113, and the two heat-conducting fins 113 on the same side and the two heat-conducting fins 113 on the other side are symmetrically arranged with the center of the circle of the cylinder 110 as the center of symmetry, so that the torsion spring 220 can be conveniently installed and replaced by a worker. When the torsion spring 220 is to be installed, the end, provided with the connecting block 231, of the abutting plate 230 is firstly arranged to play a role outwards, the connecting block 231 is arranged in the torsion spring 220 in a penetrating mode and is in clamping connection with the torsion spring 220, one end of the torsion spring 220 is sleeved on the rotating shaft 210 on one side of the torsion spring, the torsion spring 220 is then extruded inwards, after the torsion spring 220 is compressed to be shortened, the other end of the torsion spring 220 is clamped on the other rotating shaft 210, and therefore installation of the torsion spring 220 is achieved.

Referring to fig. 2 and 3, an elastic rubber layer 233 is adhered to one end of the abutting plate 230, which is far away from the torsion spring 220, so as to improve the friction between the abutting plate 230 and the ceiling, thereby improving the firmness of fixing the LED tube lamp.

The working process is as follows:

when the LED down lamp is to be installed, the power line in the ceiling is connected with the wire inserting seat 121, and then the abutting plates 230 on two sides are rotated, so that the abutting plates 230 move away from the lamp body 300. The base is then passed through a mounting opening in the ceiling and the abutment plate 230 is released when the shaft 210 is positioned above the ceiling. The elastic potential energy of the torsion spring 220 is released when the abutting plate 230 is not subjected to the acting force of the operator, so that the abutting plate 230 moves close to the lamp body 300, the abutting plate 230 is opened and abuts against the upper surface of the ceiling, and the down lamp is fixed on the ceiling.

After the abutting plate 230 abuts against the ceiling, the LED down lamp is pushed upwards, so that the lamp body 300 abuts against the lower surface of the ceiling, and the LED down lamp is installed.

When the LED tube light is used, since the power supply module 310 is disposed in the barrel 110, heat is dissipated from the inside of the barrel 110 to the outside, and the heat is primarily dissipated through the heat dissipating holes 115 formed in the barrel 110. The heat on the cylinder 110 is transferred to the heat sink 112 through the heat sink 112 and the heat conducting fin 113, and then the heat is transferred to the heat conducting fin 113 along the heat sink 112, so that the contact area between the air and the heat is increased, and secondary heat dissipation is performed. And finally, through the gap between two adjacent heat-conducting fins 113, the external low-temperature air and the internal high-temperature air are easy to exchange, thereby being beneficial to the air flow to form convection and carrying out tertiary heat dissipation.

The triple heat dissipation has progressive effect, the temperature in the down lamp is effectively reduced, the heat dissipation effect of the LED down lamp is improved, and the service life of the LED down lamp is prolonged.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a LED down lamp with heat dissipation function, includes base (100) and lamp body (300), its characterized in that, base (100) are barrel (110) that the cavity set up including inside to and set up power apron (120) at barrel (110) top, lamp body (300) set up in barrel (110) bottom, barrel (110) week side is provided with fin (112) along its length direction, the one end that barrel (110) were kept away from in fin (112) is provided with conducting strip (113), conducting strip (113) with fin (112) set up perpendicularly, and have the space between two adjacent conducting strip (113).

2. The LED down lamp with the heat dissipation function according to claim 1, wherein the heat dissipation fins (112) are arranged in an arc shape and are bent in the same direction around the circumference of the barrel (110).

3. The LED down lamp with the heat dissipation function according to claim 2, wherein the heat-conducting fins (113) are arranged in an arc shape, and the arc shape is matched with the arc shape of the barrel (110).

4. The LED down lamp with the heat dissipation function according to claim 3, wherein both ends of the heat-conducting fin (113) are provided with rounded corners.

5. The LED down lamp with the heat dissipation function according to claim 3, wherein heat transfer plates (114) are arranged on two side walls of the heat dissipation fin (112), the heat transfer plates (114) are arranged obliquely, and one end of each heat transfer plate (114) far away from the heat dissipation fin (112) is arranged close to the heat conduction fin (113).

6. The LED tube light with the heat dissipation function according to claim 1, wherein heat dissipation holes (115) are formed in the circumferential side wall of the tube body (110), and a filter screen (116) is disposed in the tube body (110).

7. The LED down lamp with the heat dissipation function according to claim 6, wherein the number of the heat dissipation holes (115) at the top and the bottom of the barrel (110) is greater than the number of the heat dissipation holes (115) at the middle position of the barrel (110).

8. The LED down lamp with the heat dissipation function according to claim 1, wherein the two heat-conducting fins (113) taking the circle center of the barrel (110) as the symmetry center are both provided with a fixing component (200), the fixing component (200) comprises a rotating shaft (210) fixedly arranged on the heat-conducting fins (113) and a torsion spring (220) sleeved on the rotating shaft (210), one end of the torsion spring (220) is connected to the barrel (110), the other end of the torsion spring is connected with a butt plate (230), and one end of the butt plate (230) far away from the torsion spring (220) in a natural state is arranged close to the lamp body (300).

9. The LED down lamp with the heat dissipation function according to claim 8, wherein the abutting plate (230) is provided in a U shape, one end of the U-shaped opening is connected with the torsion spring (220), a connecting block (231) which is parallel to the rotating shaft (210) is integrally arranged at the other end of the U-shaped opening, and the connecting block (231) extends into the torsion spring (220) and is clamped with the torsion spring (220).

10. The LED down lamp with the heat dissipation function according to claim 9, wherein an elastic rubber layer (233) is adhered to one end of the abutting plate (230) far away from the torsion spring (220), and a reinforcing rib (232) is further arranged inside the abutting plate (230).

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