CN203585843U - LED lamp with heat sink device located inside lampshade - Google Patents

Abstract

The utility model relates to a LED lamp with be located inside radiator device of lamp shade, the lamp includes lamp shade (1), is used for radiating radiator device (2), radiator base (3), lamp base (4) and a plurality of LED luminous element (5), radiator device (2) are connected to through radiator base (3) lamp base (4), LED luminous element (5) set up on radiator device (2), its characterized in that, radiator device (2) together with LED luminous element (5) are located inside lamp shade (1) together, wherein radiator base (3) are equipped with the convection current drill way that is used for making the inside and external atmosphere of lamp shade carry out the intercommunication, wherein lamp shade (1) is including the convection current opening that is used for making the inside and external atmosphere intercommunication of lamp shade. The LED lamp can realize quick and effective heat dissipation, and the overall size of the LED lamp is reduced and the appearance is attractive.

Description

LED lamp with heat sink device located inside lampshade

technical field

The utility model relates to an LED lamp, in particular to an LED lamp with a radiator device located inside the lampshade.

Background technique

With the rapid development of LED technology, LED lights have gradually become the first choice for new green lighting. However, an important factor affecting the quality of LED lights is heat dissipation. The accumulated heat not only affects the electrical performance of the LED, but eventually causes the LED to fail. Therefore, in order to prolong the service life of the LED lamp, it becomes particularly important for the design of the LED lamp to quickly and effectively dissipate the heat generated by the LED.

LED lights generate a lot of heat during use. To remove heat, manufacturers typically use heat sinks to dissipate heat. Various technical solutions for dissipating the heat generated by LEDs have been proposed in the prior art.

Chinese utility model patent CN201220142096U discloses a LED spherical bulb. A radiator is arranged between the lamp holder of the light bulb and the LED illuminant. The LED illuminant is provided with a spherical lampshade. An aluminum substrate is arranged on the upper end surface of the radiator, and the spherical lampshade and the LED illuminant are respectively fixed on the aluminum substrate.

Patent application US2013176744A1 discloses an LED lamp. The LED lamp has a heat sink between the lampshade and the lamp base. The heat sink is partitioned into an upper partition adjacent to the lamp housing and a lower partition adjacent to the lamp base.

Patent application WO2013097291 discloses a large-angle LED bulb with natural internal and external convection heat dissipation. The LED ball bulb performs convection and radiation heat dissipation through the holes arranged at the bottom and top of the lampshade.

Patent application WO2013035940 discloses an LED light bulb. The heat sink of the LED bulb is installed on the rear side of the LED base, and has circular radial heat transfer pipes for dissipating radiant heat generated on the rear surface to the outside.

Although the above-mentioned patents or patent applications have proposed a variety of heat dissipation methods, the heat sink devices in the prior art are all arranged outside the lampshade rather than inside the lampshade, so that the heat generated by the LED illuminant cannot be quickly and effectively dissipated from the surrounding LED illuminant. The heat is transmitted away, causing a large amount of heat to gather around the LED luminous body, so that the LED luminous body is in a high-temperature environment for a long time, which affects the electrical performance and service life of the LED luminous body. This is especially unfavorable for high-power LED lights.

Furthermore, the radiator device is arranged outside the lampshade, which can also make the overall size of the LED lamp larger, and the appearance is not beautiful enough.

Contents of utility models

In order to solve the above-mentioned problems in the prior art, the utility model provides a novel LED lamp.

An object of the present utility model is to provide an LED lamp with fast and effective heat dissipation.

Another object of the present utility model is to provide an LED lamp suitable for higher luminous power and smaller in size.

Another object of the present utility model is to provide an LED lamp with a beautiful appearance.

The above purpose of the utility model is achieved through the following technical solutions.

The utility model provides an LED lamp with a radiator device located inside the lampshade. The lamp includes a lampshade, a radiator device for heat dissipation, a radiator base, a lamp base and a plurality of LED illuminants. The radiator device is connected to the lamp base through the radiator base, the LED illuminant is arranged on the radiator device, and it is characterized in that the radiator device together with the LED luminous body is located inside the lampshade, wherein the The radiator base is provided with a convection hole for communicating the inside of the lampshade with the outside atmosphere, wherein the lampshade includes a convection opening for communicating the inside of the lampshade with the outside atmosphere.

As a result, the heat generated by the LED illuminant can be quickly and efficiently dissipated from the lamp housing, and the overall size of the LED lamp becomes smaller.

Preferably, the radiator device comprises a radiator body and a plurality of radiator sections spaced apart from each other with a gap, wherein the radiator body is coupled to a radiator base, and the plurality of radiator sections surround the radiator The body is arranged and connected with the radiator body through the connecting portion.

Preferably, each radiator section is provided with a plurality of fins.

Preferably, the radiator body is in the shape of a regular hexagonal prism, and the plurality of radiator segments are three radiator segments arranged around the radiator body.

Preferably, said radiator base comprises an upper section connected to the radiator body and a lower section, said convection opening comprising at least one top vent provided on a top surface of said lower section holes and at least one side vent provided on the side of the lower section and communicating with the at least one top vent.

Preferably, said at least one top ventilation hole comprises a plurality of circumferentially disposed radially elongated holes, and said at least one side ventilation hole comprises a plurality of axially elongated holes.

Preferably, a protective cover is provided on the outside of each radiator segment.

Preferably, a plurality of LED light emitters are arranged on the heat sink body, facing the gap.

Preferably, the lampshade is a conventional bulbshade having an enlarged end at which the convection opening is provided.

Preferably, the lampshade has a tulip shape as a whole, the lampshade is formed by a plurality of tulip-shaped segments, wherein the convection opening is arranged between the plurality of tulip-shaped segments.

Preferably, the lampshade is in the shape of a twisted tulip, the lampshade being formed from a plurality of twisted tulip-shaped segments, wherein the convection openings are arranged between the plurality of twisted tulip-shaped segments.

The utility model has the following beneficial effects: since the radiator device and the LED illuminant are located inside the lampshade, the overall size of the LED lamp is reduced and the appearance is beautiful. Since the radiator device is located inside the lampshade and the convection passage formed by the convection holes and convection openings, the heat can be quickly and effectively transferred away from the surroundings of the LED illuminant. The tulip-shaped lampshade with the convection opening makes the appearance of the LED lamp streamlined, which not only provides better heat dissipation performance but also has a beautiful appearance. The protective cover prevents users from accidentally touching each radiator section and causing burns.

Description of drawings

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying non-limiting drawings, in which:

Fig. 1 shows a schematic diagram of an LED lamp with a heat sink device located inside a lampshade according to an embodiment of the present invention, wherein the lampshade part is partially cut away and the protective cover is removed to expose the internal components;

Fig. 2 shows the view along A-A direction of the LED lamp shown in Fig. 1;

Figure 3 shows a top view of the radiator base;

Figure 4 shows a front view of the radiator base;

Fig. 5 shows a schematic diagram of an LED lamp provided with a traditional lampshade according to the first embodiment of the present utility model;

Fig. 6 shows a schematic diagram of an LED lamp provided with a tulip-shaped lampshade according to a second embodiment of the present invention; and

Fig. 7 shows a schematic diagram of an LED lamp provided with a twisted tulip-shaped lampshade according to a third embodiment of the present invention.

Detailed ways

FIG. 1 generally shows an LED lamp 10 , which includes a lampshade 1 , a radiator device 2 for heat dissipation, a radiator base 3 , a lamp base 4 and an LED illuminant 5 . The heat sink device 2 is connected to the lamp base 4 via the heat sink base 3 . The lamp base 4 is of conventional type and thus will not be discussed in detail here. A plurality of LED illuminants 5 represented by small circles are arranged on the radiator device 2 . The lampshade 1 covers the radiator device 2 together with the LED illuminant 5 inside, thereby forming a general appearance of a light bulb. The radiator base 3 is provided with convection holes for communicating the inside of the lampshade with the outside atmosphere. The lampshade 1 includes a convection opening for communicating the interior of the lampshade with the outside atmosphere.

Thus, outside air can enter the lampshade 1 through the convection opening of the radiator base 3 , flow through the radiator device 2 and flow out through the convection opening 16 to take away the heat in the lampshade, thereby providing a good convection cooling effect. In contrast, outside air can also flow into the lampshade 1 through the convection opening 16 , flow through the radiator device 2 , and flow out through the convection hole of the radiator base 3 . Therefore, even for a high-power LED illuminant, rapid and effective heat dissipation can be achieved, so that the LED illuminant can better exert its electrical performance and prolong its service life.

Since the radiator device 2 and the LED illuminant 5 are located inside the lampshade 1, the overall size of the LED lamp is reduced and the appearance is beautiful. Since the heat sink device 2 is located inside the lampshade 1 and the convection passage formed by the convection holes and convection openings, the heat can be quickly and effectively transferred away from the surroundings of the LED illuminant.

As shown in FIG. 1 , the lampshade 1 includes a convection opening 16 for communicating the interior of the lampshade 1 with the outside atmosphere to better dissipate heat. This arrangement is especially useful in situations where the LED lamp is mounted with the base down and the shade up. In this case, hot air can pass through the convection openings to the surrounding atmosphere without collecting in the bulb.

As shown in FIG. 4 , the radiator base 3 includes an upper section 32 and a lower section 38 . The upper section 32 is in the shape of a regular hexagonal prism. The lower section 38 has the shape of a cylinder with one end rounded off. The convection openings of the radiator base 3 include at least one top vent 34 provided on the top surface of the lower section 38 and at least one side vent 36 provided on the side of the lower section 38, the at least one The top vent communicates with the corresponding at least one side vent.

Preferably, the at least one top ventilation hole is a plurality of holes arranged at equal intervals along the circumference. Preferably, said at least one top ventilation hole is a radially elongated hole. Preferably, the at least one side ventilation hole is a plurality of holes equally spaced on the side of the lower section 38 . Preferably, the side ventilation holes are axially elongated holes.

The radiator device 2 may include a radiator body and a plurality of radiator sections spaced apart from each other.

Referring to FIGS. 1 and 2 , the radiator device 2 includes a radiator body 22 in the shape of a regular hexagonal prism and three radiator sections 20 spaced apart from each other by gaps 14 . The radiator body 22 is coupled to an upper section 32 of the radiator base. Preferably, the radiator body 22 is coaxially coupled to the upper section 32 . Preferably, the upper section is provided with a notch, and the radiator body 22 is provided with a corresponding protrusion engaging with the notch. The cross-section of the notches may be circular. The notch can also be threaded if desired. Other joining methods may also be used. The three radiator segments 20 are arranged around the radiator body and are all connected to the radiator body via connecting portions 25 . Preferably, three radiator segments 20 are arranged concentrically around the radiator body.

Each radiator section may be provided with a plurality of fins 27 for heat dissipation. Preferably, each radiator section is provided with a plurality of fins 27 inside for heat dissipation.

The cross-section of the radiator body 22 can also be other polygonal shapes or circular. A plurality of heat sink segments are conformally arranged about the heat sink body 22 spaced apart from one another with appropriate clearances. A plurality of LED illuminants 5 are disposed on the heat sink body 22 facing the gap 14 . Advantageously, a plurality of LED illuminants 5 are arranged on the heat sink body 22 at intervals. The size of the gap 14 is suitable for not blocking the light emitting path of the LED illuminant. The gap 14 can also provide a communication path between the inner space surrounded by the plurality of radiator sections and the outside thereof, so as to facilitate heat dissipation.

A protective cover 26 can also be provided on the outside of each radiator section to prevent users from accidentally touching each radiator section and causing burns.

The radiator body 22 , the radiator section 20 and the connection part 25 of the radiator device can be made of plastic or metal with heat transfer performance. Preferably, the metal is aluminum because it is lightweight, has a high heat dissipation rate and is durable. The protective cover 26 may be made of optical plastic.

In the first embodiment of the present invention, the lampshade may be a traditional lampshade with an enlarged end portion 17 (see FIG. 5 ). The convection opening 16 is provided at the enlarged end 17 .

According to the second embodiment of the present utility model, the lampshade may be in the shape of a tulip as a whole (see FIG. 6 ), formed by a plurality of sections in the shape of a tulip. Convection openings 16 are provided between the plurality of tulip-shaped segments.

According to a third embodiment of the present invention, the lampshade may be in the shape of a twisted tulip (see FIG. 7 ), formed by a plurality of segments in the shape of a twisted tulip. Convection openings 16 are provided between the plurality of twisted tulip-shaped segments.

The tulip-shaped lampshade provided with the convection opening makes the appearance of the LED lamp streamlined, which not only provides better heat dissipation performance but also provides an aesthetic appearance.

The lampshade 1 can be made of glass, plastic or any other optical material. The lampshade may simply be adhered to the radiator base, or may be connected to the radiator base via a notch-tab locking arrangement.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the embodiments shown and described above, but can be implemented in various ways within the scope of the appended claims.

Claims (9)

1. a LED lamp with the heat sink arrangement that is positioned at lampshade inside, described lamp comprises lampshade (1), for the heat sink arrangement (2) dispelling the heat, foot of radiator (3), lamp seat (4) and a plurality of LED illuminator (5), described heat sink arrangement (2) is connected to described lamp seat (4) by foot of radiator (3), described LED illuminator (5) is arranged on described heat sink arrangement (2), it is characterized in that, described heat sink arrangement (2) is positioned at lampshade (1) inside together with described LED illuminator (5), wherein said foot of radiator (3) is provided with for making the inner convection current aperture being communicated with ambient atmosphere of lampshade, wherein said lampshade (1) comprises for making the inner convection current opening being communicated with ambient atmosphere of lampshade.

2. LED lamp as claimed in claim 1, it is characterized in that, described heat sink arrangement comprises radiator body (22) and with a gap (14) spaced a plurality of radiator portion's sections (20), wherein said radiator body is attached to foot of radiator (3), and described a plurality of radiator portion's sections (20) are arranged and all by connecting portion (25), are connected with radiator body around radiator body (22).

3. LED lamp as claimed in claim 2, is characterized in that, each radiator portion section is provided with a plurality of fins (27).

4. LED lamp as claimed in claim 2, is characterized in that, described radiator body (22) is positive hexagon, and described a plurality of radiator portion section is three radiator portion sections of arranging around radiator body.

5. the LED lamp as described in any one in claim 1-4, it is characterized in that, described foot of radiator (3) comprises top portion section (32) and bottom portion section (38), described top portion section is connected with radiator body (22), and described convection current aperture comprises at least one the top portion ventilation hole (34) on the top surface that is arranged on described bottom portion section and is arranged on the side of described bottom portion's section (38) and corresponding at least one the sidepiece air vent (36) being communicated with described at least one top portion ventilation hole.

6. LED lamp as claimed in claim 5, is characterized in that, described at least one top portion ventilation hole comprises the radially longilineal a plurality of holes that arrange along circumference, and described at least one sidepiece air vent comprises longilineal a plurality of hole vertically.

7. the LED lamp as described in any one in claim 2-4, is characterized in that, in each radiator portion section, is provided with protective cover (26) in outside.

8. the LED lamp as described in any one in claim 2-4, is characterized in that, a plurality of LED illuminators are arranged on described radiator body, in the face of described gap (14).

9. the LED lamp as described in any one in claim 1-4, is characterized in that, described lampshade expands the bulb shield of end (17) for having, and expands end (17) to locate described in described convection current opening (16) is arranged on.

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