CN218720800U

CN218720800U - Street lamp with good heat dissipation

Info

Publication number: CN218720800U
Application number: CN202220062084.1U
Authority: CN
Inventors: 瞿承蔚; 瞿莹
Original assignee: Shenzhen Shijia Technology Co ltd
Current assignee: Shenzhen Shijia Technology Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2023-03-24
Anticipated expiration: 2032-01-11

Abstract

The utility model belongs to the technical field of lamp lighting, and relates to a street lamp with good heat dissipation, which comprises a cover body, a COB light source component, a power supply component and a heat dissipation plate, wherein the cover body is arranged on the back surface of the heat dissipation plate, the cover body and the heat dissipation plate form a shell of the street lamp, the COB light source component is arranged on the front surface of the heat dissipation plate, and the power supply component is arranged in the shell and is electrically connected with the COB light source component; the heat dissipation plate is provided with at least one pipeline, and a heat-conducting medium is filled in the pipeline; the power supply assembly comprises a power supply body and a mounting plate; the mounting plate comprises a plate body, the edges of two sides of the plate body are bent to form fixing parts, the fixing parts are connected with the heat dissipation plate, and gaps are formed between the mounting plate and the heat dissipation plate so that the power supply body and the heat dissipation plate are arranged alternately; the LED street lamp has the advantages that the heat transfer and heat dissipation performance of the heat dissipation plate is greatly improved, the junction temperature of the integrated light source chip is reduced, the light attenuation of the street lamp is delayed, and the service life of the street lamp is prolonged.

Description

Street lamp with good heat dissipation

Technical Field

The utility model relates to a lamps and lanterns lighting technology field especially relates to a street lamp that heat dissipation is good.

Background

COB light source is the integrated area source technique of high light efficiency with the direct mirror surface metal substrate of pasting the LED chip on high reflectance, and the COB light source is the integrated area source of high power, because its process is simple, with low costs, so by wide application in the high-pole lamp field. However, when working for a long time, the COB light source generates considerable heat, and if the heat cannot be discharged in time, the service life of the COB light source, that is, the service life of the high-pole lamp, is directly affected.

The conventional street lamp radiates a COB light source through an aluminum-based radiator, but the aluminum-based radiator is large in size, heavy in mass and poor in heat conduction and radiating effects.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the above shortcoming, the not enough of prior art, the utility model provides a street lamp that heat dissipation is good can carry out high-efficient heat dissipation to the COB light source, and it has solved current street lamp heat conduction and the not good technical problem of radiating effect.

(II) technical scheme

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

the embodiment of the utility model provides a good street lamp dispels heat, including lid, COB light source subassembly, power supply module and heating panel, the lid is installed at the back of heating panel, and both constitute the casing of street lamp, and the COB light source subassembly sets up in the front of heating panel, and power supply module sets up in the casing and is connected together with COB light source subassembly electricity; the heat dissipation plate is provided with at least one pipeline, and a heat-conducting medium is filled in the pipeline; the power supply assembly comprises a power supply body and a mounting plate; the mounting plate comprises a plate body, two side edges of the plate body are bent to form fixing portions, the fixing portions are connected with the heat dissipation plate, and gaps are formed between the mounting plate and the heat dissipation plate, so that the power supply body and the heat dissipation plate are arranged alternately.

Optionally, the pipe is bent to form a medium storage region, an evaporation region, a condensation region and a reflux region; the medium storage area is located at the bottom of the heat dissipation plate and used for storing the heat conducting medium and enabling the heat conducting medium to absorb heat and vaporize in the medium storage area, the evaporation area is located in the middle of the heat dissipation plate, the vaporized heat conducting medium enters the condensation area through the evaporation area, the condensation area is located at the top of the heat dissipation plate and used for receiving the vaporized heat conducting medium and condensing and liquefying the vaporized heat conducting medium, and the backflow area receives the liquefied heat conducting medium and reflows the liquefied heat conducting medium to the medium storage area, so that the heat conducting medium completes one-time large circulation in a pipeline.

Optionally, the pipe arrangement branches form a mesh structure; the evaporation zone is provided with a plurality of evaporation branches which are communicated with each other, the condensation zone is provided with a plurality of condensation branches which are communicated with each other, the reflux zone is provided with a plurality of reflux branches which are communicated with each other, the evaporation branches converge into the condensation zone, the condensation branches converge into the reflux zone, and the reflux branches converge into the medium storage zone; at least one group of connecting channels are arranged between the evaporation branch and the reflux branch from top to bottom. The netted pipeline improves the heat transfer efficiency of the pipeline and ensures the working stability of a circulating system of the pipeline; in addition, the heat-conducting medium vaporized in the evaporation region enters the reflux region through the connecting channel for condensation and liquefaction and then flows back to the medium storage region, so that the heat-conducting medium completes one-time intermediate-stage circulation, a shorter circulation path is provided for the heat-conducting medium, the condensation of the heat-conducting medium is accelerated, and the heat dissipation is fast.

Optionally, each group of connecting channels is arranged along the horizontal direction, or is arranged obliquely, and one end close to the backflow area is positioned above the other end; each group of connecting channels comprises a condensing channel and an evaporating channel positioned below the condensing channel; the evaporation channel of the upper group of connecting channels is communicated with the condensation channel of the lower group of connecting channels to form a circulation branch, so that the heat-conducting medium completes one small circulation in the circulation branch, the heat transfer speed between the evaporation area and the reflux area is accelerated, and the heat dissipation performance of the pipeline is improved.

Optionally, the heating panel is provided with two layers, the pipeline is arranged at a position between the two layers of the heating panel, and at least one surface of the heating panel is a plane, so that a COB light source assembly is convenient to install.

Optionally, the front surface and the back surface of the heat dissipation plate are both sprayed with graphite oil, so that the heat dissipation performance of the heat dissipation plate is greatly improved.

Optionally, the cover body is provided with a ventilation and heat dissipation hole, so that heat in the street lamp can be dissipated into the outside air from the ventilation and heat dissipation hole.

Optionally, the street lamp still includes the staple bolt, and the bottom of lid is provided with staple bolt installation through-hole, and the staple bolt setting is in staple bolt installation through-hole and link together with the heating panel, and the lamp pole of street lamp inserts in the staple bolt, and is together fixed with the staple bolt, convenient operation, the high altitude installation of being convenient for and maintenance operation.

Optionally, the street lamp further comprises a controller, a plurality of mounting grooves are formed in the plate body of the mounting plate, the controller and the power supply body are mounted on the mounting grooves side by side, and the controller is arranged to remotely control the switch of the street lamp through software to adjust the output power of the street lamp.

Optionally, the street lamp still includes the plunger, corresponds on the heating panel and is provided with plunger installation through-hole, and the power cord passes the plunger and links together with COB light source subassembly, prevents that the rainwater from causing the short circuit in getting into the COB light source subassembly along the power cord.

(III) advantageous effects

The utility model has the advantages that: the utility model discloses a street lamp that heat dissipation is good, for prior art, have following advantage:

1. the edges of two sides of the plate body of the mounting plate are bent to form fixing parts, so that a gap is formed between the mounting plate and the heat dissipation plate, and the power supply body and the heat dissipation plate are arranged alternately, so that the heat dissipation workload of the heat dissipation plate is reduced; set up the pipeline on the heating panel to wherein fill heat-conducting medium, improved the heat dispersion of heating panel by a wide margin, can carry out high-efficient heat dissipation to the COB light source, it has solved current street lamp heat conduction and the not good technical problem of radiating effect.

2. The pipeline is bent to form a medium storage area, an evaporation area, a condensation area and a reflux area, a heat-conducting medium is stored in the medium storage area, the liquid heat-conducting medium absorbs heat generated by the COB light source assembly and is vaporized, a large amount of steam is formed in the evaporation area, the steam enters the condensation area to be condensed and liquefied, the liquefied heat-conducting medium flows into the reflux area and returns to the medium storage area, a complete large cycle is completed, and the cycle is repeated, the heat-conducting medium can rapidly conduct the heat generated by the COB light source assembly and can radiate the heat to the outside, the technical effect of improving the heat dissipation performance of the heat dissipation plate is achieved, the junction temperature of a chip of the COB light source is reduced, the light attenuation of the street lamp is delayed, and the service life of the street lamp is prolonged; and the heat can be automatically dissipated only by the temperature difference in the pipeline, so that the energy is saved and the environment is protected.

3. The pipeline is provided with branches to form a net structure, and a connecting channel is arranged between the evaporation area and the reflux area, so that a path for medium-level circulation is provided for the heat-conducting medium, the condensation of the heat-conducting medium is accelerated, and the heat dissipation is fast. The pipeline is arranged to be of a net structure, so that the heat transfer efficiency of the pipeline is improved, and the working stability of a circulating system of the pipeline is ensured.

4. Each group of connecting channels comprises a condensing channel and an evaporating channel, the evaporating channel of the previous group of connecting channels is communicated with the condensing channel of the next group of connecting channels to form a circulating branch, so that the heat-conducting medium is subjected to small circulation in the circulating branch, and the heat transfer speed between the evaporating area and the reflux area is increased.

5. The street lamp includes lid, power supply module, controller, heating panel and COB light source subassembly, and the structure is retrencied, and is whole small and exquisite light, be convenient for transportation and installation.

Drawings

Fig. 1 is one of schematic perspective views of a street lamp according to an embodiment of the present invention with good heat dissipation;

fig. 2 is a second perspective view of the street lamp according to the embodiment of the present invention;

fig. 3 is an exploded view of a street lamp according to an embodiment of the present invention with good heat dissipation;

fig. 4 is a schematic cross-sectional view of a heat dissipating plate of an embodiment of the street lamp with good heat dissipation of the present invention;

fig. 5 is an enlarged schematic view of a point a in fig. 4.

[ description of reference ]

1: a cover body; 11: ventilating and radiating holes;

2: a power supply component; 21: a power supply body; 22: mounting a plate;

3: a controller;

4: hooping;

5: a heat dissipation plate; 51: a pipeline; 511: a media storage area; 512: an evaporation zone; 513: a condensation zone; 514: a reflux zone; 52: a connecting channel; 521: a condensing channel; 522: an evaporation channel;

6: a COB light source assembly; 61: LED lamp beads; 62: a silica gel pad; 63: a lamp bead pressing plate; 64: an optical lens; 65: a waterproof silica gel ring; 66: a lens pressing block;

7: and a plunger.

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. In this specification, the terms "up" and "down" refer to the orientation of fig. 1, the direction of the heat dissipation plate 5 is "front", the direction of the cover 1 is "back", the direction of the COB light source assembly 6 is "up", and the direction of the hoop 4 is "down".

The utility model provides a street lamp that dispels heat well has solved the slower technical problem of current street lamp heat dissipation, and it includes lid, COB light source subassembly, power supply module and heating panel, and the lid is installed at the back of heating panel, and both constitute the casing of street lamp, and COB light source subassembly sets up in the front of heating panel, and power supply module sets up in the casing and is connected together with COB light source subassembly electricity; the heat dissipation plate is provided with at least one pipeline, and a heat-conducting medium is filled in the pipeline; the power supply assembly comprises a power supply body and a mounting plate; the mounting panel package rubbing board body, the both sides edge of plate body is bent and is formed the fixed part, the fixed part links together with the heating panel, form the space between mounting panel and the heating panel, so that power supply body and heating panel alternate setting, the heat dissipation burden of heating panel has been alleviateed, the pipeline that has filled heat-conducting medium can conduct the produced heat of COB light source subassembly fast, reduce the junction temperature of integrated light source chip, improve the heat dispersion of heating panel, delay the light decay of street lamp, the life of extension street lamp.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As can be seen from fig. 3, the utility model provides a street lamp that heat dissipation is good includes lid 1, power supply module 2, controller 3, heating panel 5 and COB light source subassembly 6.

As can be seen from fig. 1 to 3, the cover 1 and the heat sink 5 are connected together by bolts to form a housing of the street lamp. The cover body 1 is fixed on the back of the heat dissipation plate 5, and is provided with a ventilation heat dissipation hole 11, so that heat generated by the COB light source assembly 6 can be dissipated to the outside air from the ventilation heat dissipation hole 11; the lid 1 can select the good material of heat conduction thermal diffusivity for use, like the aluminum product etc. on the heat conduction of heating panel 5 lid 1, can further increase radiating area. The COB light source assembly 6 is arranged on the front surface of the heat dissipation plate 5 and connected with the heat dissipation plate 5 through bolts. The power supply module 2 and the controller 3 are both arranged in the shell, and the power supply module 2, the controller 3 and the COB light source module 6 are electrically connected together.

Referring to fig. 3, the power supply module 2 includes a power supply body 21 and a mounting plate 22, the mounting plate 22 includes a plate body, a plurality of mounting grooves are formed on the plate body, and the power supply body 21 is mounted on the mounting grooves; the both sides edge of plate body is bent and is formed the fixed part, and the fixed part passes through bolted connection together with heating panel 5, fixes mounting panel 22 on heating panel 5, consequently, forms certain space between mounting panel 22 and the heating panel 5, makes power body 21 and heating panel 5 alternate setting, avoids the produced heat of power body 21 directly to transmit the heat dissipation work load that aggravates heating panel 5 on heating panel 5.

Referring to fig. 3 and 4, at least one pipe 51 is disposed on the heat dissipation plate 5, and the pipe 51 is filled with a heat transfer medium. The pipeline 51 filled with the heat-conducting medium can quickly conduct heat generated by the COB light source assembly 6, reduce junction temperature of the integrated light source chip, improve heat dissipation performance of the heat dissipation plate 5, delay light attenuation of the street lamp and prolong service life of the street lamp.

In order to make the heat radiating area of heat radiating plate 5 bigger, heat radiating plate 5 is equipped with two-layerly, adopts 1 to be the aluminum product and 6 to be the aluminum product respectively, and pipeline 51 sets up on one deck aluminum plate wherein, and two-layer aluminum plate passes through the hot-pressing and combines together, and pipeline 51 is located between two-layer aluminum plate, therefore heat radiating plate 5 has at least one side to be the plane, is convenient for install COB light source subassembly 6. The front and the back of the heat dissipation plate 5 are both coated with graphite oil, so that the heat dissipation performance of the heat dissipation plate 5 is greatly improved. The material of the heat sink 5 is not limited, and the heat sink has good heat conductivity and heat dissipation.

Referring to fig. 4, the pipe 51 is bent to form a medium storage region 511, an evaporation region 512, a condensation region 513, and a reflux region 514; the pouring opening of the pipe 51 is closed after the completion of the pouring operation. The medium storage area 511 is located at the bottom of the heat dissipation plate 5, the evaporation area 512 is located in the middle of the heat dissipation plate 5, the condensation area 513 is located at the top of the heat dissipation plate 5, two backflow areas 514 are arranged, and the two backflow areas 514 are arranged below two ends of the condensation area 513 and are located on two sides of the evaporation area 512 respectively.

Further, in order to improve the heat conduction efficiency of the pipeline 51, the pipeline 51 is provided with branches to form a mesh structure, wherein the evaporation area 512 is provided with a plurality of evaporation branches which are communicated with each other, the condensation area 513 is provided with a plurality of condensation branches which are communicated with each other, the reflux area 514 is provided with a plurality of reflux branches which are communicated with each other, the evaporation branches converge into the condensation area 513, the condensation branches converge into the reflux area 514, and the reflux branches converge into the medium storage area 511, therefore, the cross-sectional structures of the circulation areas of the heat conduction medium are all mesh structures, the heat dissipation area is larger, and the heat dissipation capacity of the pipeline 51 is stronger.

The medium storage area 511 is used for storing a heat conducting medium, the heat conducting medium absorbs heat generated by the COB light source assembly 6 in the medium storage area 511 to be vaporized, the evaporation area 512 is used for communicating the medium storage area 511 with the condensation area 513, the vaporized heat conducting medium enters the condensation area 513 through the evaporation area 512, the condensation area 513 is used for receiving the vaporized heat conducting medium and condensing and liquefying the vaporized heat conducting medium, and the reflux area 514 is used for receiving the liquid heat conducting medium in the condensation area 513 and refluxing the liquid heat conducting medium to the medium storage area 511; therefore, the heat transfer medium completes a complete large cycle including evaporation, condensation, and reflux processes in the pipe 51; only need to have the difference in temperature among the pipeline 51, the heat-conducting medium can carry out the macrocycle heat dissipation by oneself continuously, has promoted the heat dispersion of heating panel 5 greatly, and is more energy-concerving and environment-protective.

The medium storage area 511 is arranged, the heat-conducting medium is condensed and flows back to the medium storage area 511, and then is evaporated into the evaporation area 512, so that the dry burning phenomenon of the pipeline 51 can be prevented, and the working performance of the pipeline 51 is more reliable.

It should be noted that, in order to improve the heat dissipation effect of the heat dissipation plate 5, the COB light source assembly 6 is disposed at the bottom of the front surface of the heat dissipation plate 5 and corresponds to the position of the medium storage area 511 of the heat dissipation plate 5. Furthermore, a plurality of groups of radiating fins can be arranged on the back surface of the radiating plate 5, and the radiating fins are fixed on the radiating plate 5 and are abutted against the cover body 1, so that the heat conduction and radiating area is increased.

As shown in fig. 4, in practical applications, at least one set of connecting channels 52 is disposed between the evaporation region 512 and the return region 514 from top to bottom, and the vaporized heat transfer medium directly enters the return region 514 from the connecting channels 52 to be condensed and flows back to the medium storage region 511, thereby completing a middle-stage cycle. The connecting channel 52 is arranged to provide a shorter circulating heat dissipation path for the heat-conducting medium, so that condensation of the heat-conducting medium is accelerated, and heat dissipation is fast.

The heat-conducting medium carries out the major-circle and the intermediate cycle at pipeline 51, and the constant heat absorption vaporization and the liquefaction are exothermic, and the heat that will generate heat the piece production is conducted on heating panel 5 and is given off the heat to the external world, consequently, pipeline 51 can heat conduction fast, has promoted the radiating rate of heating panel 5 by a wide margin, and its heat dispersion is more excellent.

Referring to fig. 4 and 5, each group of the connecting channels 52 is arranged along the horizontal direction and includes a condensing channel 521 and an evaporating channel 522 arranged right below the condensing channel 521, the evaporating channel 522 of the upper group of the connecting channels 52 is communicated with the condensing channel 521 of the lower group of the connecting channels 52 to form a circulation branch, the vaporous heat-conducting medium in the evaporating area 512 enters the evaporating channel 522 to complete a small circulation in the circulation branch, the small circulation provides the shortest circulation path for the heat-conducting medium, the area surrounded by the small circulation forms a plurality of mutually independent heat dissipation centers, and the evaporating area 512 and the return area 514 perform heat exchange around the heat dissipation centers, so that the heat dissipation of the heat dissipation fins 51 becomes more dispersed, and the heat dissipation efficiency is higher.

Further, the connecting passage 52 arranged in the horizontal direction is changed to be arranged obliquely, and one end of the connecting passage 52 near the return flow region 514 is located at an upper position of the other end. Therefore, when the circulation is small, the liquid heat transfer medium in the return region 514 can flow into the evaporation region 512 along the condensation channel 521 in the circulation branch, and the heat exchange speed between the evaporation region 512 and the return region 514 is greatly improved.

It is to be noted that the space between the condensation passages 521 and the evaporation passages 522 of each set of the connection passages 52 is smaller than the space between the evaporation passages 522 of the previous set of the connection passages 52 and the condensation passages 521 of the next set of the connection passages 52.

Under the effect of the temperature difference, the large, medium and small cycles in the fin 51 will be continuously performed. It should be noted that, because the large cycle, the middle cycle and the small cycle are performed simultaneously, each part of the heat dissipation plate 51 is utilized fully, the working efficiency of the heat dissipation plate 51 is greatly improved, the heat dissipation performance is good, and the heat generated by the heat generating component can be quickly conducted to the heat dissipation plate 5. The pipeline 51 including the major cycle, the middle-level cycle and the minor cycle forms a complete circulation system, has higher working stability, is not easy to block the pipeline 51, solves the problem that the circulation reflux of the heat-conducting medium is influenced by the individual branch blocking, has higher heat-conducting speed, and further improves the heat-radiating performance of the heat-radiating plate 5.

Referring to fig. 2 and 3, in order to facilitate high-altitude installation and repair work, the bottom end of the cover body 1 is provided with the hoop 4 and the hoop installation through hole, the hoop 4 is arranged in the hoop installation through hole, one side of the hoop 4 is connected with the heat dissipation plate 5 through the bolt, the other side of the hoop is provided with the fixing through hole, the lamp post of the street lamp is inserted into the hoop 4, the jacking screw penetrates through the cover body 1 to be matched with the fixing through hole to fix the lamp post in the hoop 4, the installation of the street lamp can be completed, and the operation is simple and convenient. The hoop 4 is connected with the mounting plate 22 through a connecting angle iron, so that the stability of the whole structure of the street lamp is improved.

Referring to fig. 3, the controller 3 is fixed on the mounting groove of the mounting plate 22 and arranged side by side with the power supply body 21. Power body 21 is COB light source subassembly 6 and the power supply of controller 3, and power body 21 and controller 3 are waterproof design.

In actual use, the controller 3 can be remotely controlled through software, the operation of opening and closing the street lamp and adjusting the output power of the street lamp according to requirements is completed, and time and labor are saved. The controller 3 is used for adjusting the output power of the street lamp according to the actual lighting requirement, adjusting the brightness of the street lamp, and saving energy and protecting environment.

As can be seen from fig. 1 and 3, the COB light source assembly 6 is disposed on the front surface of the heat sink 5, and is connected to the heat sink 5 by bolts. Wherein, COB light source subassembly 6 includes LED lamp pearl 61, silica gel pad 62, lamp pearl clamp plate 63, optical lens 64, waterproof silica gel circle 65 and lens briquetting 66. The lamp bead pressing plate 63 fixes the LED lamp beads 61 on the front face of the heat dissipation plate 5 through the silica gel pad 62, the optical lens 64 is used for covering the LED lamp beads 61, the lens pressing block 66 is used for fixing the optical lens 64 on the heat dissipation plate 5, and the waterproof silica gel ring 65 is sleeved between the optical lens 64 and the lens pressing block 66. Adopt COB light source subassembly 6, the light source is more concentrated, makes the street lamp shine farther, even in rain and fog weather, the illuminating effect is also very good, adapts to changeable outdoor environment.

In practical application's in-process, in order to prevent when raining that COB light source subassembly 6 internal line is intake, be provided with plunger installation through-hole and plunger 7 on heating panel 5, plunger 7 cover is established in plunger installation through-hole, is equipped with the through-hole in the plunger 7, and the power cord that communicates with power body 21 passes on plunger 7's through-hole is connected to LED lamp pearl 61, and waterproof nature is good.

The utility model discloses a good street lamp dispels heat includes lid 1, power supply module 2, controller 3, heating panel 5 and COB light source subassembly 6, and the structure is retrencied, and manufacturing cost is lower, and is whole small and exquisite light, and transportation, storage and installation are all very convenient.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

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.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a street lamp that heat dissipation is good, includes lid (1) and COB light source subassembly (6), its characterized in that: the power supply module also comprises a power module (2) and a heat dissipation plate (5); the cover body (1) is arranged on the back face of the heat dissipation plate (5), the cover body and the heat dissipation plate form a shell of the street lamp, the COB light source assembly (6) is arranged on the front face of the heat dissipation plate (5), and the power supply assembly (2) is arranged in the shell and is electrically connected with the COB light source assembly (6);

the heat dissipation plate (5) is provided with at least one pipeline (51), and a heat conducting medium is filled in the pipeline (51);

the power supply assembly (2) comprises a power supply body (21) and a mounting plate (22); the mounting panel (22) includes the plate body, the both sides edge of plate body is bent and is formed the fixed part, the fixed part with heating panel (5) link together, mounting panel (22) with form the space between heating panel (5), so that power body (21) with heating panel (5) alternate the setting.

2. The street lamp with good heat dissipation as set forth in claim 1, wherein: the pipeline (51) is bent to form a medium storage area (511), an evaporation area (512), a condensation area (513) and a reflux area (514); the medium storage area (511) is located at the bottom of the heat dissipation plate (5) and used for storing a heat conduction medium and enabling the heat conduction medium to absorb heat and vaporize in the medium storage area (511), the evaporation area (512) is located in the middle of the heat dissipation plate (5), the vaporized heat conduction medium enters the condensation area (513) through the evaporation area (512), the condensation area (513) is located at the top of the heat dissipation plate (5) and used for receiving the vaporized heat conduction medium and condensing and liquefying the vaporized heat conduction medium, and the backflow area (514) receives the liquefied heat conduction medium and flows the liquefied heat conduction medium back to the medium storage area (511).

3. A street lamp with good heat dissipation as set forth in claim 2, wherein: the pipeline (51) is provided with branches to form a net structure;

the evaporation area (512) is provided with a plurality of evaporation branches which are communicated with each other, the condensation area (513) is provided with a plurality of condensation branches which are communicated with each other, the reflux area (514) is provided with a plurality of reflux branches which are communicated with each other, the evaporation branches converge into the condensation area (513), the condensation branches converge into the reflux area (514), and the reflux branches converge into the medium storage area (511); at least one group of connecting channels (52) are arranged between the evaporation branch and the reflux branch from top to bottom.

4. A street lamp with good heat dissipation as set forth in claim 3, wherein: each set of said connecting channels (52) being arranged horizontally or obliquely with one end near said recirculation zone (514) above the other end;

each group of the connecting channels (52) comprises a condensation channel (521) and an evaporation channel (522) positioned below the condensation channel (521), and the evaporation channel (522) of the upper group of the connecting channels (52) is communicated with the condensation channel (521) of the lower group of the connecting channels (52) to form a circulating branch.

5. The street lamp with good heat dissipation as set forth in claim 1, wherein: heating panel (5) are provided with two-layerly, pipeline (51) set up position between the two-layer of heating panel (5), heating panel (5) have at least one side to be the plane, so that the installation COB light source subassembly (6).

6. The street lamp with good heat dissipation as set forth in claim 1, wherein: the front and the back of the heat dissipation plate (5) are both sprayed with graphite oil.

7. The street lamp with good heat dissipation as set forth in claim 1, wherein: the cover body (1) is provided with a ventilating and radiating hole (11).

8. The street lamp with good heat dissipation as set forth in claim 1, wherein: the street lamp further comprises a hoop (4), the bottom of the cover body (1) is provided with a hoop mounting through hole, the hoop (4) is arranged in the hoop mounting through hole and connected with the heat dissipation plate (5), and a lamp post of the street lamp is inserted into the hoop (4) and connected with the hoop (4).

9. The street lamp with good heat dissipation as set forth in claim 1, wherein: the street lamp further comprises a controller (3), wherein the mounting plate (22) is provided with a plurality of mounting grooves, and the controller (3) and the power body (21) are mounted on the mounting grooves side by side.

10. The street lamp with good heat dissipation as claimed in any one of claims 1 to 9, wherein: the street lamp still includes plunger (7), the correspondence is provided with plunger installation through-hole on heating panel (5), and the power cord passes plunger (7) with COB light source subassembly (6) link together to prevent that the rainwater is followed the power cord gets into in COB light source subassembly (6).