CN101776234B

CN101776234B - Modular street lamp

Info

Publication number: CN101776234B
Application number: CN2010101428244A
Authority: CN
Inventors: 马强
Original assignee: BEIJING LAMPEARL PHOTOELECTRIC CO LTD
Current assignee: Liangye Technology Group Co ltd
Priority date: 2010-03-09
Filing date: 2010-03-09
Publication date: 2012-02-29
Anticipated expiration: 2030-03-09
Also published as: CN101776234A

Abstract

The invention provides a modular street lamp, which comprises a lamp cap, wherein the lamp cap comprises at least one group of street lamp modules and dustproof covers, and the dustproof covers cover the street lamp modules; wiring ducts and cover plates of the dustproof covers are arranged on the dustproof covers, and the dustproof covers and the cover plates of the dustproof covers form cavities to accommodate cables. The invention has wide application range, adopts modular design, facilitates maintenance and replacement, can prevent the accumulation of large-particle dust, falling leaves, wastepaper, fabrics, droppings and the like on the heat dissipating body of the lamp, and ensures that the LED street lamp has long service life and normally works in outdoor harsh environments.

Description

Module street lamp

Technical Field

The invention relates to the technical field of semiconductor lighting, in particular to a lamp holder structure of an LED (Light Emitting Diode) module street lamp, belonging to the field of module street lamps.

Background

The light source commonly adopted in the prior road lamp is a high-pressure sodium lamp or a metal halide lamp, but the road surface illumination and the uniformity of the illumination are not enough. The industry has gradually begun to use LEDs as street light sources. In the technical field of semiconductor illumination, the LED as a fourth generation energy source has the following advantages: the LED lamp has the advantages of high luminous efficiency, low lamp reflection loss, power and energy saving, no need of high voltage, high safety, long service life and the like.

However, heat dissipation is always one of the problems that the LED street lamp needs to be mainly solved, and because the LED street lamp has high brightness requirement, large heat productivity, and harsh outdoor use environment, if the heat dissipation is not good, rapid aging and stability of the LED can be directly caused.

For example, a street lamp using a 250W high-pressure sodium lamp has a mature technology and a good heat dissipation control, so that even if the street lamp works for 5000 hours, the light decay can be kept small, and the luminous efficiency can reach more than 70%. In the prior art, the high-power LED street lamp under the same condition has the defects of difficult solution of the heat dissipation problem, larger light attenuation and doubled reduction of the service life of the lamp. If the light efficiency is improved by increasing the voltage and the current, the LED chip is likely to be damaged. It is clear that the heat dissipation problem is a technical problem to be solved urgently in the technical field of semiconductor illumination.

In addition, the LED street lamp is to avoid accumulation of large-particle dust, leaves, paper scraps, braided fabrics, bird droppings and the like on the lamp radiator so as to ensure normal heat dissipation of the lamp radiator and ensure long-life normal work of the LED street lamp in outdoor severe environment. However, most manufacturers only consider the surface area of the heat sink required by the LED light source when designing the LED street lamp, and do not consider the environmental factors in the practical application of the LED street lamp at all, so that a large amount of large-particle dust, leaves, paper scraps, braided fabrics, bird droppings and the like are accumulated on the heat sink of the lamp body during the use of the lamp, and the heat generated by the LED light source cannot be dissipated in time even if the lamp is washed away by rain, so that the junction temperature of the LED light source is rapidly increased, the light attenuation is accelerated, the luminous flux is rapidly reduced, the illumination requirement of the road surface is influenced, and the service life of the LED lamp is greatly reduced.

Besides the requirement of the heat dissipation performance of the LED, how to flexibly adjust the light source of the street lamp according to the requirement of the road surface illumination to realize the illumination requirements of different powers for one LED street lamp is also a technical problem to be solved urgently.

Disclosure of Invention

The invention aims to provide a module street lamp which can overcome the defects of the prior art, has wide application range, adopts a modular design and is convenient for maintenance, replacement and illumination adjustment; the accumulation of large-particle dust, leaves, paper scraps, braided fabrics, bird droppings and the like on the lamp heat dissipation body can be avoided, and the long-life normal work of the LED street lamp in an outdoor severe environment is ensured; and simultaneously takes account of the heat dissipation effect and the convenience degree of the process

In order to solve the above technical problem, the present invention discloses a modular street lamp, which comprises a lamp cap, and is characterized in that the lamp cap comprises: the street lamp comprises at least one group of street lamp modules and a dust cover, wherein the dust cover covers the street lamp modules, the dust cover is provided with a wire passing groove and a dust cover plate, and the dust cover plate form a cavity to accommodate a cable.

Furthermore, still install middle ventilating board between per two street lamp modules, still install the end ventilating board on first and last street lamp module, be equipped with a plurality of ventilation holes on middle ventilating board and the end ventilating board.

Further, still include: the lamp post pressing plate comprises a front end cover, a front end cover connecting plate, an upper cover, a rear cover, a lamp post pressing plate, a wire pressing plate, a lower cover, a power supply mounting plate, a module support pressing plate, a module support and a driving power supply; wherein, the upper cover and the rear cover are arranged on the lower cover; the wire pressing plate, the power supply mounting plate and the lamp post pressing plate are fixed on the lower cover and are positioned in a cavity formed by the upper cover, the rear cover and the lower cover; the driving power supply is fixed on the power supply mounting plate; the module support pressing plate is pressed on the module support and is locked with the lower cover to fix one end of the module support; the front end cover connecting plate is used for fixing the other end of the module bracket; the street lamp modules are sequentially arranged between the module brackets through the connectors at the two ends of the street lamp modules; the front end cover is assembled on the front end cover connecting plate.

Furthermore, the dust cover is also provided with a wire hole and a plurality of ventilation holes.

Further, the street lamp module includes: the LED lamp comprises a lamp body section, a circuit substrate and a light source, wherein the light source is connected to the circuit substrate, the circuit substrate is fixed to the lower surface of the lamp body section, heat dissipation ribs are arranged on the upper surface of the lamp body section, and the light source, the circuit substrate and the lamp body section are in thermal contact.

Further, the street lamp module still includes: connector, water joint and respirator, wherein, the connector install in the both ends of lamp body section bar upper surface, water joint and respirator are installed respectively in the mounting hole that corresponds on the lamp body section bar, the cable conductor passes water joint with the circuit substrate is connected.

Furthermore, two cables are led out from the waterproof connector of each street lamp module, the cables extend into the cavity formed by the dust cover plate and the dust cover through the wire holes and are respectively in butt joint with the cables led out from the street lamp modules on two adjacent sides, so that each street lamp module is electrically connected, and finally one cable is led out and is connected with the driving power supply.

Furthermore, cables of all the street lamp modules are led out from the waterproof connectors and respectively extend into the cavity formed by the dust cover plate and the dust cover through the wire holes to be directly connected with corresponding power wires led out from the driving power supply.

Furthermore, a set of heat dissipation ribs is arranged on two sides of the connecting line direction of the connectors arranged at two ends of the lamp body section bar, and a set of heat dissipation ribs with the height lower than that of the heat dissipation ribs on the two sides is arranged at the position between the connectors at the two ends to form a wire slot for wiring.

Furthermore, the screw position that sets up on the connecting head openly sets up upwards.

Furthermore, the lamp body section bar and the circuit substrate are made of aluminum.

Further, the street lamp module still includes: the lamp body section bar comprises a light source, a sealing ring and a lens, wherein the lens covers the light source and is arranged on the lower surface of the lamp body section bar, and the lens and the lamp body section bar are sealed through the sealing ring.

Further, the lens is composed of a plurality of optical-grade Polycarbonate (PC) or polymethyl methacrylate (PMMA) lens units with independent optical functions.

Compared with other LED lamps of the same type, the LED lamp has the following advantages:

1) according to the LED module street lamp, the design of the dust cover with the vent holes is added on the light source module, so that the accumulation of large-particle dust, leaves, paper scraps, braided fabrics, bird droppings and the like on the lamp body section bar of the lamp can be avoided on the premise of ensuring smooth ventilation required by the heat dissipation of the lamp, and the long-life normal work of the LED street lamp in an outdoor severe environment is ensured;

2) the LED module street lamp adopts the modularized combination design, realizes the illumination requirements of different powers by increasing or reducing the light source modules according to the requirement of the road surface illumination, has wide application range, and is convenient for maintenance and replacement and illumination adjustment.

3) The LED street lamp module has the advantages that the heat dissipation effect and the convenience in process are simultaneously considered in the design scheme.

Drawings

FIG. 1 is a schematic perspective view of an LED module street lamp according to the present invention;

FIG. 2 is a schematic perspective view of an LED module street lamp according to the present invention;

FIG. 3 is a front view of the light emitting surface of the LED module street lamp of the present invention;

FIG. 4 is an exploded view of the LED module street lamp according to the present invention;

FIG. 5 is a schematic diagram of a transverse cross-sectional structure of the LED module street lamp of the present invention;

FIG. 6 is a schematic longitudinal cross-sectional structure view of the LED module street lamp of the present invention;

FIG. 7 is a schematic cross-sectional view of the light source module (3) of the LED module street lamp according to the present invention;

fig. 8 is an exploded view of the light source module (3) of the LED module street lamp according to the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided in conjunction with the drawings and examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present invention can be fully understood and implemented.

The module street lamp in this scheme, including lamp holder and lamp pole, the design of this scheme is done and is mainly concentrated on traditional scheme's improvement the lamp holder part, the lamp holder includes: the street lamp comprises at least one group of street lamp modules (mainly light source modules hereinafter), a driving power supply and a shell with a light source cavity and an electrical appliance cavity, wherein a certain number of street lamp modules can be selected to be installed in the light source cavity according to illumination requirements, the driving power supply is installed in the electrical appliance cavity, and the light source cavity and the electrical appliance cavity are arranged in parallel or the electrical appliance cavity is arranged at the back of the light source cavity; the shell comprises a front end cover, a front end cover connecting plate, an upper cover, a rear cover, a lamp post pressing plate, a line pressing plate, a lower cover, a power supply mounting plate, a module support pressing plate, a module support and the like, wherein a light source cavity and an electric appliance cavity are formed by the parts.

The embodiment of the present invention will be described below with reference to an example.

As shown in fig. 1-6, an LED module street lamp with six light source modules (3) is composed of a front end cover (1), a front end cover connecting plate (2), the light source modules (3), a dust cover (4), a dust cover plate (5), an upper cover (6), a rear cover (7), a lamp pole pressing plate (8), a wire pressing plate (9), a driving power supply (10), a lower cover (11), a power supply mounting plate (12), a module support pressing plate (13), a module support (14), a middle ventilating plate (15), an end ventilating plate (16), a plurality of cables, screws and the like.

The upper cover (6) and the rear cover (7) are arranged on the lower cover (11) through screws; the wire pressing plate (9), the power supply mounting plate (12) and the lamp pole pressing plate (8) are fixed on the lower cover (11) through screws and are positioned in a cavity formed by the combination of the upper cover (6), the rear cover (7) and the lower cover (11); the driving power supply (10) is fixed on the power supply mounting plate (12); the module support pressing plate (13) is pressed on the module supports (14) and is locked and fixed at one end of each of the two module supports (14) through a screw and the lower cover (11); the front end cover connecting plate (2) is used for fixing the other ends of the two module supports (14); the light source module (3) is sequentially arranged between the two module brackets (14) through the connectors (3-1) at the two ends of the light source module; the front end cover (1) is assembled on the front end cover connecting plate (2); the dust cover (4) is arranged above the two module brackets (14) to cover the light source module (3); the dust cover plate (5) is arranged on the dust cover (4) and forms a cavity with the dust cover plate; a middle ventilating plate (15) is arranged between every two light source modules (3); the head ventilation plates (16) are mounted on the first and last light source modules (3).

The following describes the core module-light source module in the solution of the present invention with an embodiment.

As shown in the attached figures 7-8, the light source module (3) mainly comprises a connector (3-1), a waterproof connector (3-2), a lamp body section bar (3-3), a respirator (3-4), a circuit substrate (3-5), an LED light source (3-6), a sealing ring (3-7) and an array type integrated lens (3-8). The connector (3-1) is arranged at two ends of the upper surface of the lamp body section bar (3-3), the waterproof connector (3-2) and the respirator (3-4) are respectively arranged in corresponding mounting holes on the lamp body section bar (3-3), the cable passes through the waterproof connector (3-2) and is connected with the circuit substrate (3-5), the LED light sources (3-6) are welded on the circuit substrate (3-5) in an array manner, the circuit substrate (3-5) is fixed on the lower surface of the lamp body section bar (3-3) through screws, and the LED light sources (3-6), the circuit substrate (3-5) and the lamp body section bar (3-3) are in thermal contact through heat-conducting silicone grease; the array type integrated lens (3-8) covers the LED light source (3-6) and is installed on the lower surface of the lamp body section bar (3-3) through a screw, and the array type integrated lens (3-8) and the lamp body section bar (3-3) are sealed through a sealing ring (3-7).

The array type integrated lens (3-8) adopted by the lamp is an integrated lens formed by a plurality of lens units with independent optical functions; the upper surface of the lamp body section bar (3-3) is provided with a heat dissipation rib; the dust cover (4), the middle ventilating plate (15) and the end ventilating plate (16) are provided with a plurality of ventilating holes, and the back of the dust cover (4) is provided with a wire passing groove.

The light source module (3) and the driving power supply (10) adopted by the lamp are independent sealing components, and the protection grade reaches more than IP 65.

The heat dissipated between the heat dissipation ribs on the upper surface of the lamp body section bar (3-3) of the lamp realizes the convection with the outside air in the left-right direction through the ventilation holes on the two sides of the dust cover (4), and realizes the convection between the hot air in the lamp and the outside cold air in the up-down direction through the ventilation holes on the middle ventilation plate (15) between the light source modules (3) and the ventilation holes on the upper side of the dust cover (4). In addition, because the dust cover (4) is fully distributed with the small-diameter vent holes, large-particle dust, leaves, paper scraps, braided fabrics, bird droppings and the like can be prevented from being accumulated on the lamp body section bars (3-3), and because the dust cover (4) adopts a streamline shape design, the large-particle dust, the leaves, the paper scraps, the braided fabrics, the bird droppings and the like accumulated on the dust cover can be easily washed clean by wind and rain, so that the junction temperature of the LED light source is maintained within a reasonable range, the light attenuation is small, the luminous flux is stable, and the service life of the LED lamp is greatly ensured.

The present embodiment can eliminate the use of the intermediate ventilation board (15) and the end ventilation board (16) to increase the air circulation to a greater extent.

The following further describes the improved details of the present invention with several application examples, in conjunction with the attached drawings.

Particularly, as shown in fig. 4 and 5, the dust cover (4) is further provided with a wire hole and a recessed wire passing groove, the dust cover plate (5) is mounted on the dust cover (4), and the dust cover plate (5) and the dust cover (4) form a cavity so as to accommodate a cable; the driving power supply (10) is an integrated power supply integrating constant voltage and constant current functions, and an external power line is connected to one end of the driving power supply (10);

in the first mode implemented in the current embodiment, the cable of each light source module (3) is led out through a waterproof connector, the cable is led into a wire passing groove on the back surface of the dust cover (4) through the wire hole, and the cable of each light source module (3) is correspondingly connected with a plurality of power wires led out from the other end of the driving power supply (10);

in addition, the second mode can be adopted, cables are led out from the waterproof joints (3-2) of each group of light source modules (3), the cables are led into a cavity formed by the dust cover plate (5) and the dust cover (4) and are respectively in butt joint with the cables led out from the light source modules at two adjacent sides, so that the light source modules (3) of each group are electrically connected, and finally, one cable is led out from the light source module adjacent to the driving power supply and is connected with the driving power supply (10).

In a relatively simple manner, the second wiring design is significantly more convenient for assembly, and the wiring arrangement is simpler.

Specifically, as shown in fig. 4, the module support pressing plate (13) presses on the module support (14) and is locked with the lower cover (11) through screws to fix one end of each of the two module supports (14); the wire pressing plate (9), the power supply mounting plate (12) and the lamp pole pressing plate (8) are fixed on the lower cover (11) through screws, and the driving power supply (10) is fixed on the power supply mounting plate (12); the upper cover (6), the rear cover (7) and the lower cover (11) are combined to form a cavity to accommodate the driving power supply (10).

In the traditional scheme, a module bracket (14) and a lower cover (11) are made of cast iron section bars which are integrated, a driving power supply is clamped by a formed cavity, and the wall of the cavity is fixed with the driving power supply by welding; the design scheme of the invention is obviously more convenient to install, and the installation mode of the driving power supply is more stable; in addition, the aluminum material is used, and the aluminum material is installed through screws, so that the cast iron weld repair has better fracture toughness, fatigue strength, heat dissipation and corrosion resistance stability compared with the cast iron weld repair of the traditional scheme.

Particularly, as shown in fig. 7 and 8, the circuit substrate (3-5) made of an aluminum substrate is fixed to the LED light source (3-6), and the LED light source (3-6), the circuit substrate (3-5) and the lamp body profile (3-3) are in thermal contact with each other through heat-conducting silicone grease, wherein the lamp body profile (3-3) may also be made of aluminum, and heat dissipation ribs are further disposed on the upper surface of the lamp body profile.

Particularly, as shown in fig. 7 and 8, the connectors (3-1) (i.e. the lead positions) are disposed at two ends of the back of the lamp body profile (3-3) of each light source module (3), and two sets of heat dissipation ribs are disposed at two sides of the connecting line direction of the two connectors (3-1), and the two sets of heat dissipation ribs may be arranged in a shape with the rib heights sequentially from high to low as shown in fig. 7 for aesthetic reasons, but the invention is not limited thereto; a group of heat dissipation ribs with the height lower than that of the heat dissipation ribs on the two sides are arranged between the two connectors (3-1), the ribs of the group of heat dissipation ribs are uniform in height, a wire groove (shown in figure 7) convenient for wiring is formed, the processing technology and the wiring design are convenient, and meanwhile, the heat dissipation effect of the lamp body section bar (3-3) is not influenced.

Specifically, as shown in fig. 8, the screw position of the connector (3-1) is partially upward in front and partially outward in side; with reference to fig. 4, when the screw-fixing position of the side-out is located in the groove of the module holder (14), there is inconvenience in disassembly and assembly;

therefore, in another application example, the screw positions of the connectors (3-1) can be arranged in a whole front-up mode, so that tools with special shapes are not needed during installation, and the work of installation personnel is facilitated.

Although the embodiments of the present invention have been described, the description is not intended to limit the scope of the invention. Workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the disclosure. The scope of the present invention is defined by the appended claims.

Claims

1. A modular street lamp, includes the lamp holder, its characterized in that, the lamp holder includes: at least one group of street lamp modules and a dust cover, wherein,

the dust cover covers the street lamp module, a wire passing groove is formed in the dust cover, a dust cover plate is further installed on the dust cover, and a cavity is formed by the dust cover and the dust cover plate to accommodate a cable;

further comprising: the lamp post pressing plate comprises a front end cover, a front end cover connecting plate, an upper cover, a rear cover, a lamp post pressing plate, a wire pressing plate, a lower cover, a power supply mounting plate, a module support pressing plate, a module support and a driving power supply; wherein,

the upper cover and the rear cover are arranged on the lower cover; the wire pressing plate, the power supply mounting plate and the lamp post pressing plate are fixed on the lower cover and are positioned in a cavity formed by the upper cover, the rear cover and the lower cover; the driving power supply is fixed on the power supply mounting plate; the module support pressing plate is pressed on the module support and is locked with the lower cover to fix one end of the module support; the front end cover connecting plate is used for fixing the other end of the template bracket; the street lamp modules are sequentially arranged between the module brackets through the connectors at the two ends of the street lamp modules; the front end cover is assembled on the front end cover connecting plate.

2. The modular street light as claimed in claim 1, wherein an intermediate vent panel is further installed between every two street light modules, and end vent panels are further installed on the first and last modules, the intermediate vent panel and the end vent panel being provided with a plurality of vent holes.

3. The modular street light as recited in claim 1,

the dust cover is also provided with a wire hole and a plurality of ventilation holes.

4. The modular street light as claimed in claim 3, wherein the street light module comprises: lamp body section bar, circuit substrate and light source, wherein,

the light source is connected to the circuit substrate, the circuit substrate is fixed to the lower surface of the lamp body section, the upper surface of the lamp body section is provided with heat dissipation ribs, and the light source, the circuit substrate and the lamp body section are in thermal contact.

5. The modular street light as recited in claim 4, wherein the street light module further comprises: a connector, a waterproof connector and a respirator, wherein,

the connector install in the both ends of lamp body section bar upper surface, water joint and respirator are installed respectively in the mounting hole that corresponds on the lamp body section bar, the cable conductor passes water joint with circuit substrate connects.

6. The modular street light as recited in claim 5,

two cables are led out from the waterproof connector of each street lamp module, extend into the cavity formed by the dust cover plate and the dust cover through the wire holes and are respectively in butt joint with the cables led out from the street lamp modules on two adjacent sides, so that each street lamp module is electrically connected, and finally one cable is led out and is connected with the driving power supply.

7. The modular street light as recited in claim 5,

and cables are led out of the street lamp modules by the waterproof connectors and respectively extend into the cavity formed by the dust cover plate and the dust cover through the wire holes to be directly connected with corresponding power wires led out by the driving power supply.

8. The modular street light as recited in claim 5,

the lamp body section bar comprises a lamp body section bar, wherein a plurality of connectors are arranged at two ends of the lamp body section bar, a plurality of radiating ribs are respectively arranged at two sides of the connecting line direction of the connectors at two ends of the lamp body section bar, and a plurality of radiating ribs lower than the radiating ribs at two sides are arranged at the positions between the connectors at the two ends to form a wire slot for wiring.

9. The modular street light as recited in claim 6,

the screw position that sets up on the connector openly sets up upwards.

10. The modular street light as recited in claim 4,

the lamp body section bar and the circuit substrate are made of aluminum.

11. The modular street light as recited in claim 4, wherein the street light module further comprises: a seal ring and a lens, wherein,

the lens covers the light source and is arranged on the lower surface of the lamp body section bar, and the lens and the lamp body section bar are sealed through the sealing ring.

12. The modular street light as recited in claim 11,

the lens is composed of a plurality of optical-grade Polycarbonate (PC) or polymethyl methacrylate (PMMA) lens units with independent optical functions.