CN212481023U - In-shell radiation heat dissipation type LED street lamp - Google Patents

Abstract

The utility model relates to an in-shell radiation heat dissipation type LED street lamp, which comprises a lamp shell, a power supply module and an LED module; the lamp shell comprises a first lamp shell part, the first lamp shell part comprises a downward opening and a first cavity used for containing the LED module, the first cavity comprises a plurality of heat dissipation ribs extending downwards from the first lamp shell part, the lower ends of the heat dissipation ribs are in contact with the LED module, and the first lamp shell part and the heat dissipation ribs are integrally formed by a heat conduction metal material. Through at the inside heat dissipation muscle that sets up of LED street lamp, directly transmit the lamp body outer wall through the heat dissipation muscle rapidly to the heat, satisfying radiating prerequisite under, in inclosed street lamp cavity space, adopt radiation heat radiation structure to replace traditional convection current heat radiation structure, the lamp body outward appearance has both been optimized by a wide margin, avoid exposing phenomenons such as radiating fin's setting and pit, the laying dust phenomenon when also having reduced the street lamp and using under external environment, thereby effectively avoided because the lamps and lanterns heat dispersion that the laying dust leads to reduces, influence lamps and lanterns life's the condition appearance.

Description

In-shell radiation heat dissipation type LED street lamp

Technical Field

The utility model relates to a LED street lamp, concretely relates to radiating heat formula LED street lamp in shell belongs to the technical field that the LED street lamp used.

Background

In the lighting process of the LED street lamp, a plurality of LED lamp beads can generate a large amount of heat together. If the heat can not be effectively dissipated in time, the accumulated heat can quickly attenuate the LED lamp beads, so that the energy consumption is increased and the service life and the stability of the LED lamp beads are influenced.

The heat dissipation of the LED street lamp can be divided into active heat dissipation and passive heat dissipation. The active heat dissipation can improve the heat dissipation efficiency through active heat dissipation methods such as water cooling, air cooling and the like. These active heat dissipation methods require more complicated piping or structures and also require more energy to drive the water-cooled and air-cooled medium, thereby making the street lamp complicated in structure and high in energy consumption. Therefore, the use is less in practice, and passive heat dissipation is mostly adopted.

At present, the passive heat dissipation mode of the LED street lamp is mainly convection heat dissipation, however, the adoption of the convection heat dissipation mode needs to arrange heat dissipation fins exposed out of the LED street lamp, which not only affects the appearance of a lamp body, but also causes a large amount of dust accumulation outside the lamp, further affects the heat dissipation performance of the lamp, and reduces the service life of the lamp. On the other hand, along with the development of the optical technology of the LED street lamp, the power is higher and higher, the requirement on the heat dissipation efficiency is higher and higher, and the efficiency of the convection heat dissipation cannot sufficiently meet the heat dissipation requirement of the LED module.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problem of the prior art, the utility model provides an in-shell radiation heat dissipation formula LED street lamp not only can not produce outward appearances such as pit to the lamp body and have adverse effect owing to expose in the setting of the radiating fin of LED street lamp, also effectively avoided the laying dust of street lamp to lead to the technical problem that lamps and lanterns life descends, fully satisfied the heat dissipation demand of LED module simultaneously.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

an in-shell radiation heat dissipation type LED street lamp comprises a lamp shell, a power supply module and an LED module;

the lamp shell comprises a first lamp shell part, the first lamp shell part comprises a downward opening and a first cavity used for containing the LED module, the first cavity comprises a plurality of heat dissipation ribs extending downwards from the first lamp shell part, the lower ends of the heat dissipation ribs are in contact with the LED module, and the first lamp shell part and the heat dissipation ribs are integrally formed by a heat conduction metal material.

Preferably, the lamp housing further comprises a second lamp housing portion including a second cavity opened upward for accommodating the power supply module.

Preferably, the heat dissipation muscle includes a plurality of first heat dissipation muscle and a plurality of second heat dissipation muscle of mutually perpendicular, first heat dissipation muscle with the second heat dissipation muscle is alternately the grid form.

Preferably, the thermally conductive metal material comprises aluminum.

Preferably, the LED module comprises a packaging LED light-emitting component and an optical lens component which are sequentially arranged from top to bottom, and the packaging LED light-emitting component is connected with part of the lower end of the heat dissipation rib through a threaded fastener.

Preferably, the lower end of each heat dissipation rib is located on the same horizontal plane, and the lower end of each heat dissipation rib orthogonally contacts with the packaged LED light-emitting component.

Preferably, the thickness of the heat dissipation rib connected to the threaded fastener is greater than the thickness of the heat dissipation rib not connected to the threaded fastener.

Preferably, the opening of the first cavity is closed by means of a face frame and tempered glass, the face frame tightly presses and fixes the tempered glass to the peripheral side edge of the first cavity, and a waterproof adhesive tape is arranged between the tempered glass and the peripheral side edge of the first cavity, so that the LED module is sealed in the first cavity.

Preferably, the opening of the second cavity is closed by means of a top cover which can be pivoted to open and close around a pivot located at the joint of the first lamp housing part and the second lamp housing part; the power module arranged in the second cavity is connected with an external power supply through an external wire.

Preferably, one end of the second lamp housing part is connected with the first lamp housing part in an integrally formed manner, and the other end of the second lamp housing part is provided with a lamp post mounting part.

(III) advantageous effects

The utility model has the advantages that: the utility model provides a radiating heat formula LED street lamp in shell, through setting up vertical heat dissipation muscle inside the street lamp, directly transmit the lamp body outer wall through vertical heat dissipation muscle rapidly to the heat, satisfying under the radiating prerequisite, in inclosed street lamp cavity space, adopt radiating heat structure to replace traditional convection current heat radiation structure, the lamp body outward appearance has both been optimized by a wide margin, avoid exposing radiating fin's phenomenons such as setting and pit, the laying dust phenomenon when also having reduced the street lamp and using under external environment, thereby effectively avoided because the lamps and lanterns heat dispersion that the laying dust leads to reduces, influence lamps and lanterns life's the condition appearance.

Drawings

Fig. 1 is a schematic side view of an in-shell radiation heat dissipation type LED street lamp provided by the present invention;

fig. 2 is a schematic bottom view of a lamp housing of an in-shell radiation heat dissipation LED street lamp provided by the present invention;

fig. 3 is a schematic sectional view of an in-shell radiation heat dissipation LED street lamp according to the present invention, taken along the direction of a-a in fig. 2;

fig. 4 is an explosion schematic diagram of the first cavity of the shell radiation heat dissipation type LED street lamp provided by the present invention.

[ description of reference ]

1: heat dissipation ribs;

2-1: a first lamp housing portion;

2-2: a second lamp housing portion;

2-3: a top cover;

3: packaging the LED light-emitting component;

4: mounting screws;

5: an optical lens assembly;

6: a waterproof adhesive tape;

7: tempering the glass;

8: a face frame;

9: a second chamber;

10: a first chamber;

11: a power supply module;

12: a lamp post joint;

13: a light pole mounting part;

14: a first heat dissipation rib;

15: and the second heat dissipation ribs.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. However, these specific embodiments do not limit the scope of the present invention in any way.

As shown in fig. 1, the invention provides an in-shell radiation heat dissipation type LED street lamp, which includes a lamp shell, a power module 11 and an LED module; the lamp housing comprises a first lamp housing part 2-1, the first lamp housing part 2-1 comprises a first cavity 10 which is opened downwards and used for accommodating the LED module, the first cavity 10 comprises a plurality of heat dissipation ribs 1 which extend downwards from the first lamp housing part 2-1, the lower ends of the heat dissipation ribs 1 are in contact with the LED module, and the first lamp housing part 2-1 and the heat dissipation ribs 1 are integrally formed by a heat-conducting metal material.

According to the technical scheme, the utility model provides a pair of radiating heat formula LED street lamp in shell, including setting up at the inside heat dissipation muscle 1 of street lamp, the heat that the LED street lamp produced when the illumination can transmit the lamp body outer wall rapidly through the heat dissipation muscle 1 of vertical setting. Therefore, the LED street lamp does not need to be provided with exposed radiating fins outside the street lamp, so that the phenomena of pits and the like are avoided, the dust accumulation amount of the street lamp when the street lamp is used in an external environment is reduced, the conditions that the heat radiation performance of the lamp is reduced and the service life of the lamp is influenced due to the dust accumulation are avoided, and meanwhile, the requirement on the heat radiation efficiency is fully met.

Specifically, referring to fig. 1 to 4, the cross section of the interior of the shell radiation heat dissipation type LED street lamp provided in this embodiment is substantially wedge-shaped, but may also be a street lamp with other cross-sectional shapes. The street lamp comprises a lamp shell, a power supply module 11 and an LED module;

the lamp shell comprises a first lamp shell part 2-1 and a second lamp shell part 2-2 which are integrally formed; this integrated into one piece's lamp body can select aluminium die-casting lamp body, or other metal material that have higher heat conduction efficiency. The first lamp housing part 2-1 comprises a first cavity 10 with a downward opening, an LED module is arranged in the first cavity 10, a plurality of heat dissipation ribs 1 extend downwards from the top wall of the first lamp housing part 2-1, and the opening of the first cavity 10 can be sealed by a glass light-transmitting cover.

It should be noted that, as shown in fig. 1, the lamp housing may have a shape, that is, the first lamp housing portion 2-1 does not have a completely rounded downward opening three-dimensional structure, and a top wall thereof is substantially horizontal, two sides thereof extend obliquely downward, and then two substantially vertical sidewalls extending downward are formed. The second housing portion 2-2 may also be a structure with a similar shape, i.e. the lower portion is substantially horizontal, therefore, from the side view shown in fig. 1, some lines on the first and second housing portions are only lines that the first housing portion 2-1 and the second housing portion 2-2 present due to the shape that is not completely rounded, it should be clear that the illustration in fig. 1 is not a limitation to the structure or shape of the LED street lamp of the present application.

The second lamp housing part 2-2 includes a second cavity 9 opened upward, and a power module 11 is disposed in the second cavity 9, as shown in fig. 3. The opening of the second chamber 9 can be closed by means of a cover 2-3, which cover 2-3 can be pivoted open and closed about a pivot (not shown) located at the connection of the first lamp housing part 2-1 and the second lamp housing part 2-2; the power module 11 built in the second chamber 9 is connected to an external power source through an external wire.

The material of the top cover 2-3 can be selected from the same material as the lamp housing, and can also be selected from the material different from the lamp housing. Because the LED module is disposed in the first cavity 10 formed by the first housing portion 2-1, the heat dissipation requirement for the first cavity 10 is higher, and accordingly, the material of the lamp housing should be made of a heat conductive metal material, such as aluminum, which is easy to dissipate heat and has high heat conduction efficiency. The heat radiation of the LED module of street lamp in inclosed first chamber 10 is owing to have the temperature and radiate the electromagnetic wave's phenomenon, and the temperature will be through inside rib, promptly the utility model provides a heat dissipation muscle 1 transmits electromagnetic wave or heat energy, so the heat radiation is the only heat transfer mode in this inclosed first chamber 10. In other words, the utility model provides a LED street lamp is owing to set up heat dissipation muscle 1 in the lamp body and carry out the radiation heat dissipation, need not coat any promotion radiation heat dissipation's coating again in the lamp body outside, can be in order to satisfy the heat dissipation demand of this street lamp.

The top cover 2-3 is used for sealing the second cavity 9 of the built-in power module 11, so the material selection of the top cover does not take the heat conduction efficiency as the first factor.

Similarly, based on the above consideration, the heat dissipation rib 1 is disposed in the first cavity 10 and includes a plurality of first heat dissipation ribs 14 and a plurality of second heat dissipation ribs 15 that are perpendicular to each other, and the first heat dissipation ribs 14 and the second heat dissipation ribs 15 intersect to form a grid shape, as shown in fig. 2, so as to increase a heat dissipation area for guiding out heat inside the first cavity 10.

The height of the heat dissipation ribs 1 can be determined according to the specific shape of the street lamp, especially the internal stroke of the first cavity 10, that is, the heights of the plurality of heat dissipation ribs 1 can be different, but the height of the heat dissipation ribs 1 should be as large as possible under the condition that the structure allows, so as to increase the heat dissipation area.

However, it should be noted that, since the lower ends of the plurality of heat dissipation ribs 1 are in contact with the LED module to ensure that the heat generated by the LED module can be conducted to the outside of the street lamp more quickly, the lower ends of the plurality of heat dissipation ribs 1 should be ensured to be located on the same horizontal plane. For this purpose, inside the housing a radiant street light, a level gauge (not shown) may be arranged accordingly.

In the illustrated embodiment, in the first cavity 10, the heat dissipation rib 1 near one end of the second cavity 9 has a larger height, and the height of the heat dissipation rib 1 is gradually reduced in a direction away from the second cavity 9, and the plurality of heat dissipation ribs 1 are arranged approximately in a triangular shape as viewed along the cross section of the central line of the lamp housing, and the lower end surfaces of all the heat dissipation ribs 1 are ensured to be in the same horizontal plane, so as to ensure that the heat dissipation ribs are in good contact with the LED module below.

Due to the arrangement of the heat dissipation ribs 1, heat generated by the LED module can be rapidly transmitted to the outer wall of the upper lamp shell, heat dissipation fins do not need to be arranged outside the street lamp, the appearance of the lamp body is greatly optimized, and the dust accumulation phenomenon of the street lamp when the street lamp is used in the external environment is also reduced, so that the situations that the heat dissipation performance of the lamp is reduced and the service life of the lamp is influenced due to the dust accumulation are effectively avoided.

The LED module positioned in the first cavity 10 comprises a packaged LED light-emitting component 3 and an optical lens component 5 which are sequentially arranged from top to bottom; the packaged LED light-emitting component 3 is connected with the lower end of part of the heat dissipation rib 1 through a threaded fastener such as a mounting screw 4. And the packaged LED light-emitting component 3 is in orthogonal contact with the lower end of each heat dissipation rib 1.

Similar to the prior art, the packaged LED light emitting component 3 may include a PCB board and a LED lamp bead packaged on the PCB board, and certainly, the specific structure of the packaged LED light emitting component 3 is not further limited in the present application, and any structure of the packaged LED light emitting component 3 suitable for a street lamp can be used for the in-shell radiation heat dissipation type LED street lamp provided in the present application.

The packaged LED light-emitting component 3 is located below the heat dissipation rib 1, and the packaged LED light-emitting component 3 is electrically connected with a power module 11 arranged in the second cavity 9 through an electric wire. As shown in fig. 1, the packaged LED light emitting component 3 may be connected to the lower end of the heat dissipation rib 1 by a fastener such as a mounting screw 4. Considering the strength problem after the connection of the fastener, the thickness of the heat dissipation rib 1 connected with the fastener is slightly larger than that of the rest heat dissipation ribs 1 not connected with the fastener. The advantage of adopting fasteners such as mounting screws 4 to connect the encapsulated LED light emitting assembly 3 to the lower end of the heat dissipation rib 1 is that the encapsulated LED assembly 3 is convenient to disassemble, thereby facilitating maintenance and replacement. Of course, the connection method for connecting the packaged LED light emitting assembly 3 to the lower end of the heat dissipation rib 1 is not limited to the mounting screw 4 mentioned in this embodiment, and the packaged LED assembly 3 may be mounted by another connection method such as bonding.

As shown in fig. 4, the opening of the first cavity 10 is closed by means of a face frame 8 and a tempered glass 7, the face frame 8 tightly fixes the tempered glass 7 to the peripheral side edge of the first cavity 10, and a waterproof adhesive tape 6 is disposed between the tempered glass 7 and the peripheral side edge of the first cavity 10, so as to seal the LED module in the first cavity 10.

Specifically, be provided with toughened glass 7 in the below of the optical lens subassembly 5 of LED module, in view of the required leakproofness of encapsulation LED light-emitting component 3, the week side edge that toughened glass 7 and first lamp shell portion 2-1 lower extreme opening part are connected, also is the week side edge in first chamber 10, is provided with waterproof rubber strip 6 to avoid rainwater, outside steam etc. to enter into first chamber 10 in, cause the damage of LED module.

A face frame 8 is arranged below the tempered glass 7, namely the bottommost end of the first cavity 10, the face frame 8 can penetrate through the face frame 8 from the bottom of the face frame 8 through threaded fasteners such as mounting screws 4, and the face frame 8 can be detachably connected to the lower end of the opening of the first lamp shell part 2-1.

As can be seen from the schematic bottom view of the lamp housing of the in-shell radiation heat dissipation LED street lamp in fig. 2, the planar projection of the first cavity 10 is substantially rectangular, and therefore, the surface frame 8 is also a rectangular surface frame, however, the illustrated embodiment does not limit the street lamp and the surface frame 8 to be only in the illustrated shape, and it should be understood that any shape suitable for the street lamp and the surface frame 8 matching with the street lamp are encompassed by the scope of the present invention.

In addition, in addition to the above manner of detachable connection through the threaded fastener, a pivot structure may be further provided at one side of the lower end of the first cavity 10, around which the face frame 8 may pivot to open the first cavity 10, so that when the LED module needs to be replaced or repaired, the face frame 8 may be conveniently pivoted to open, or the entire optical lens assembly may be pivoted to open, thereby omitting a process that the face frame 8 or the entire optical lens assembly needs to be completely detached, and greatly improving the efficiency of replacement and repair of the LED module.

As shown in fig. 1 and 3, the second cavity 9 of the LED street lamp is substantially arranged side by side with the first cavity 10, and the power module 11 is located in the second cavity. One end of the second lamp housing part 2-2 may be integrally connected with the first lamp housing part 2-1, and the other end of the second lamp housing part 2-2 is provided with a lamp post mounting part 13.

The opening of the second chamber 9 is closed by means of a top cover 2-3, the top cover 2-3 being pivotally openable about a pivot located at the junction of the first lamp housing part 2-1 and the second lamp housing part 2-2; the power module 11 built in the second chamber 9 is connected to an external power source through an external wire.

In particular, for example at the junction of the first chamber 10 and the second chamber 9, a pivot may be provided for pivoting the lid 2-3 of the second chamber 9, so that the lid 2-3 closing the second chamber 9 may be conveniently pivoted open and closed when required; the power module 11 built in the second chamber 9 may include electric devices configured with a common LED street lamp, which is connected to an external power source through an external wire.

Taking the direction shown in fig. 1 as an example, on the left side of the second cavity 9, in order to connect a lamp post connector 12 of a lamp post mounting portion 13 of the LED street lamp, an external wire connecting an external power source and the LED street lamp passes through the lamp post connector 12 to be connected with a power module 11 in the second cavity 9, and the lamp post connector 12 mounts the LED street lamp on a lamp post (not shown). The external electric wire extends out of the second cavity 9 and then passes through the lamp post connector 12 to be connected with an external power supply.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An in-shell radiation heat dissipation type LED street lamp comprises a lamp shell, a power supply module (11) and an LED module; the method is characterized in that:

the lamp shell comprises a first lamp shell part (2-1), the first lamp shell part comprises a downward opening and a first cavity (10) used for accommodating the LED module, the first cavity (10) internally comprises a plurality of heat dissipation ribs (1) extending downwards from the first lamp shell part (2-1), the lower ends of the heat dissipation ribs (1) are in contact with the LED module, and the first lamp shell part (2-1) and the heat dissipation ribs (1) are integrally formed by a heat-conducting metal material.

2. The LED street lamp according to claim 1, characterized in that: the lamp housing further comprises a second lamp housing part (2-2), the second lamp housing part (2-2) comprising a second cavity (9) open upwards for accommodating a power supply module (11).

3. The LED street lamp according to claim 1, characterized in that:

the heat dissipation rib (1) comprises a plurality of first heat dissipation ribs (14) and a plurality of second heat dissipation ribs (15) which are perpendicular to each other, and the first heat dissipation ribs (14) and the second heat dissipation ribs (15) are crossed to form a grid.

4. The LED street lamp according to claim 1, characterized in that: the thermally conductive metallic material comprises aluminum.

5. The LED street lamp according to claim 1, characterized in that:

the LED module comprises a packaging LED light-emitting component (3) and an optical lens component (5) which are sequentially arranged from top to bottom, wherein the packaging LED light-emitting component (3) is connected with the lower end of the heat dissipation rib (1) through a threaded fastener.

6. The LED street lamp according to claim 5, characterized in that:

the lower end of each heat dissipation rib (1) is located on the same horizontal plane, and the lower end of each heat dissipation rib (1) is in orthogonal contact with the packaged LED light-emitting component (3).

7. The LED street lamp according to claim 6, characterized in that:

the thickness of the heat dissipation rib (1) connected with the threaded fastener is larger than the thickness of the heat dissipation rib (1) not connected with the threaded fastener.

8. The LED street lamp according to claim 1, characterized in that:

the opening of first chamber (10) is sealed with the aid of face frame (8) and toughened glass (7), face frame (8) will toughened glass (7) compress tightly to be fixed in week side edge of first chamber (10), toughened glass (7) with set up waterproof stripe (6) between week side edge of first chamber (10), thereby will the LED module is sealed in first chamber (10).

9. The LED street lamp according to claim 2, characterized in that:

the opening of the second chamber (9) is closed by means of a cover (2-3), the cover (2-3) being pivotally openable about a pivot located at the connection of the first lamp housing part (2-1) and the second lamp housing part (2-2); the power supply module (11) arranged in the second cavity (9) is connected with an external power supply through an external wire.

10. The LED street lamp according to claim 2, characterized in that:

one end of the second lamp shell part (2-2) is connected with the first lamp shell part (2-1) in an integrated forming mode, and the other end of the second lamp shell part is provided with a light pole mounting part (13).

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