LED street lamp holder based on novel heat dissipation structure

Abstract

The LED street lamp cap based on the novel heat dissipation structure comprises a lamp shell, a fixing base, an air outlet unit and a plurality of LED light-emitting units, and the lamp shell comprises a top plate, a bottom plate, an end plate, a partition plate located between the top plate and the bottom plate and two side plates; the fixing base comprises a fixing plate fixedly connected with the lamp shell, a fixing pipe, an inserting plate and a cooling fan, the inserting plate is provided with a first inner cavity, the air outlet unit comprises a sleeve plate, the sleeve plate is provided with a second inner cavity communicated with the first inner cavity, and cooling airflow of the cooling fan can enter the second inner cavity through the first inner cavity; the bottom plate is further provided with a plurality of strip-shaped air inlet holes located below the cooling fan, and a temperature sensor is installed in the lamp shell. The LED street lamp holder has a plurality of lighting states, so that different lighting modes can be utilized in different time periods. And a plurality of heat dissipation states are achieved, so that different illumination requirements and different heat dissipation requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of street lamp caps, and more specifically, to an LED street lamp cap based on a novel heat dissipation structure. Background Art

[0002] LED street lights have higher luminous efficiency, stronger light effect, less light decay and longer service life. Therefore, under the same lighting effect, LED street lights can significantly reduce energy consumption and reduce energy waste. With the deterioration of the global environment and the increasingly prominent contradiction between energy supply and demand, LED street lights have gradually become the mainstream product of urban lighting.

[0003] Existing LED street lamp holders lack active heat dissipation functions and mostly use passive heat dissipation methods, such as heat sinks and heat dissipation holes. However, these methods have certain limitations in heat dissipation efficiency and often cannot meet the heat dissipation requirements of LED street lamp holders. If the heat dissipation effect is not good, the temperature of the LED chip will increase, thereby affecting its luminous efficiency and life. Existing LED street lamp holders have a small number of LED light-emitting units and a single lighting mode, which cannot be flexibly adjusted according to the traffic or pedestrian flow in different time periods. This leads to insufficient lighting during busy traffic hours and waste of energy during sparse traffic hours. Summary of the invention

[0004] The present invention aims to overcome the defects of the prior art and provide an LED street lamp holder based on a novel heat dissipation structure.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: an LED street lamp holder, comprising a lamp housing, a fixing base, an air outlet unit and a plurality of LED light-emitting units installed at the lamp housing, the lamp housing comprising a top plate, a bottom plate, an end plate, a partition plate located between the top plate and the bottom plate and two side plates, the side plates connecting the top plate and the bottom plate, the bottom plate having a rectangular opening, and a plurality of LED light-emitting units being installed at the rectangular opening; the fixing base comprising a fixing plate fixedly connected to the lamp housing, a fixing tube fixedly connected to the fixing plate, an insert plate fixedly connected to the fixing tube and a cooling fan fixed to the insert plate, the insert plate having a first inner cavity, the air outlet unit comprising a sleeve plate inserted by the insert plate, the sleeve plate having a second inner cavity connected to the first inner cavity, and the cooling airflow of the cooling fan can enter the second inner cavity through the first inner cavity; the bottom plate also has a plurality of strip-shaped air inlet holes located below the cooling fan.

[0006] Furthermore, the end plate is fixedly connected to both side plates.

[0007] Furthermore, a temperature sensor is installed in the lamp housing.

[0008] Therefore, the temperature inside the lamp housing can be monitored in real time through the temperature sensor.

[0009] Furthermore, a driving motor is also installed at the fixing seat, and the driving motor drives a screw rod; the air outlet unit also includes a strip convex plate fixedly connected to the sleeve plate, a plurality of first air outlet nozzles and a plurality of second air outlet nozzles, the strip convex plate has a threaded channel matched with the screw rod, the first air outlet nozzle is connected to the sleeve plate through a first connecting pipe, and the second air outlet nozzle is connected to the sleeve plate through a second connecting pipe, and the sleeve plate has a plurality of first connecting holes connected to the first connecting pipe and a plurality of second connecting holes connected to the second connecting pipe; the top plate has a first groove portion and a second groove portion connected to the first groove portion, the plug plate and the sleeve plate are located in the first groove portion, and the strip convex plate has a threaded channel matched with the screw rod, the first air outlet nozzle is connected to the sleeve plate through a first connecting pipe, and the second air outlet nozzle is connected to the sleeve plate through a second connecting pipe. The convex plate is located in the second groove portion, the partition has a plurality of strip through grooves, the first connecting tube, the second connecting tube and the strip through grooves are equal in number, and each strip through groove has one first connecting tube and one second connecting tube; the end plate has a plurality of air outlet channels, the number of the air outlet channels and the strip through grooves are equal and the two correspond one to one; a plurality of LED light-emitting units are arranged in a row, the LED light-emitting units have a plurality of mutually parallel heat dissipation fins, the number of heat dissipation fins of each LED light-emitting unit is one more than the number of strip through grooves, the heat dissipation fins are located below the partition, and there is one strip through groove between two adjacent heat dissipation fins.

[0010] Furthermore, the LED street lamp head can be in a first heat dissipation state, a second heat dissipation state and a third heat dissipation state. In the first heat dissipation state, a plurality of first air outlet nozzles are closer to the fixing plate than the LED light-emitting unit closest to the fixing plate, the cooling fan operates at a first power, and the length of the screw rod exposed through the threaded channel is a first length; in the second heat dissipation state, a plurality of second air outlet nozzles are closer to the fixing plate than the LED light-emitting unit closest to the fixing plate, all the second connecting holes are blocked by the plug-in plate, the cooling fan operates at a second power, and the length of the screw rod exposed through the threaded channel is a second length; in the third heat dissipation state, a plurality of second air outlet nozzles are closer to the fixing plate than the LED light-emitting unit closest to the fixing plate, all the second connecting holes are not blocked by the plug-in plate, the cooling fan operates at a third power, and the length of the screw rod exposed through the threaded channel is a third length; the first power is greater than the second power, and the first power is less than the third power; the first length is less than the second length, and the second length is less than the third length.

[0011] Furthermore, the number of the LED light-emitting units is 8; the 8 LED light-emitting units are respectively from the first LED light-emitting unit to the eighth LED light-emitting unit in the direction from the end plate to the fixed plate; in the second heat dissipation state, the plurality of first air outlet nozzles are closer to the fixed plate relative to the fourth LED light-emitting unit; in the third heat dissipation state, there is one first air outlet nozzle between two adjacent heat dissipation fins of the fourth LED light-emitting unit.

[0012] Furthermore, in the first heat dissipation mode and the third heat dissipation mode, the eight LED light-emitting units are all in an on state.

[0013] Furthermore, in the second heat dissipation mode, the first, second, third and fourth LED light-emitting units are in an on state, and the fifth, sixth, seventh and eighth LED light-emitting units are in an off state.

[0014] Furthermore, it also includes a control box, the bottom plate has a rectangular through hole, the control box is fixedly connected to the bottom plate and is located at the rectangular through hole, a single lamp controller and a driving power supply are installed in the control box, the bottom of the control box has a plurality of strip-shaped air outlet holes, and the plug plate also has a strip-shaped through hole connected to the first inner cavity and the rectangular through hole.

[0015] Therefore, part of the heat dissipation airflow can pass through the strip-shaped through hole and enter the control box, thereby dissipating the heat of the single-lamp controller and the driving power supply in the control box.

[0016] Furthermore, the air outlet channel is L-shaped and has an air inlet and an air outlet, and the air outlet is located below the end plate.

[0017] Furthermore, the fixing plate and the top plate are fixedly connected by a plurality of fixing bolts.

[0018] Therefore, the connection between the fixing base and the lamp housing is stable.

[0019] Furthermore, the control box and the lamp housing are fixed by fixing bolts.

[0020] Thereby the control box is stably installed.

[0021] Beneficial effects:

[0022] 1. The LED street lamp head of the present application has multiple lighting states, so that different lighting modes can be used in different time periods.

[0023] 2. The LED street lamp head of the present application has multiple heat dissipation states, thereby meeting different lighting needs and different heat dissipation needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a first heat dissipation state;

[0025] Figure 2 is a schematic diagram of a second heat dissipation state;

[0026] Figure 3 is a schematic diagram of a third heat dissipation state;

[0027] Figure 4 A first-person perspective diagram of component separation;

[0028] Figure 5 This is an enlarged view of area A;

[0029] Figure 6 This is an enlarged view of area B;

[0030] Figure 7 A second perspective diagram for separating components;

[0031] Figure 8 A third-view schematic diagram of component separation;

[0032] Fig. 9 A fourth-view schematic diagram of component separation;

[0033] Fig.10 This is an enlarged view of area C.

[0034] In the picture, one of the side panels is partially hidden to allow viewing of the interior of the lamp housing and provide a better representation of the interior.

[0035] Explanation of the reference numerals: top plate 1.1; first groove portion 1.1.1; second groove portion 1.1.2; bottom plate 1.2; strip-shaped air inlet hole 1.2.1; end plate 1.3; air inlet 1.3.1; air outlet 1.3.2; partition plate 1.4; strip-shaped through groove 1.4.1; side plate 1.5; fixing plate 2.1; fixing pipe 2.2; plug plate 2.3; first inner cavity 2.3.1; strip-shaped through hole 2.3.2; cooling fan 2.4; sleeve plate 3.1; second inner cavity 3.1.1; strip-shaped convex plate 3.2; first air outlet nozzle 3.3; second air outlet nozzle 3.4; first connecting pipe 3.5; second connecting pipe 3.6; LED light-emitting unit 4; cooling fins 4.1; drive motor 5; screw rod 5.1; control box 6; strip-shaped air outlet hole 6.1; fixing bolt 7. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The present invention provides an LED street lamp holder based on a novel heat dissipation structure as shown in the figure, comprising a lamp housing, a fixing seat, an air outlet unit and a plurality of LED light-emitting units 4 installed at the lamp housing, wherein the lamp housing comprises a top plate 1.1, a bottom plate 1.2, an end plate 1.3, a partition plate 1.4 located between the top plate 1.1 and the bottom plate 1.2 and two side plates 1.5, wherein the side plates 1.5 connect the top plate 1.1 and the bottom plate 1.2, wherein the bottom plate 1.2 has a rectangular opening, and the plurality of LED light-emitting units 4 are all installed at the rectangular opening; the fixing seat comprises a fixing plate 2.1 fixedly connected to the lamp housing, a fixing plate 2.1 fixedly connected to the fixing plate 2.1 A fixed tube 2.2 connected to the fixed tube 2.2, a plug board 2.3 fixedly connected to the fixed tube 2.2 and a cooling fan 2.4 fixed to the plug board 2.3, the plug board 2.3 has a first inner cavity 2.3.1, the air outlet unit includes a sleeve plate 3.1 inserted by the plug board 2.3, the sleeve plate 3.1 has a second inner cavity 3.1.1 connected to the first inner cavity 2.3.1, and the cooling airflow of the cooling fan 2.4 can pass through the first inner cavity 2.3.1 into the second inner cavity 3.1.1; the bottom plate 1.2 also has a plurality of strip-shaped air inlet holes 1.2.1 located below the cooling fan 2.4, and a temperature sensor is installed in the lamp housing.A driving motor 5 is also installed at the fixing seat, and the driving motor 5 drives a screw rod 5.1; the air outlet unit also includes a strip convex plate 3.2 fixedly connected to the sleeve plate 3.1, a plurality of first air outlet nozzles 3.3 and a plurality of second air outlet nozzles 3.4, the strip convex plate 3.2 has a threaded channel matched with the screw rod 5.1, the first air outlet nozzle 3.3 is connected to the sleeve plate 3.1 through a first connecting pipe 3.5, and the second air outlet nozzle 3.4 is connected to the sleeve plate 3.1 through a second connecting pipe 3.6, and the sleeve plate 3.1 has a plurality of first connecting holes connected to the first connecting pipe 3.5 and a plurality of second connecting holes connected to the second connecting pipe 3.6; the top plate 1.1 has a first groove portion 1.1.1 and a second groove portion 1.1.2 connected to the first groove portion 1.1.1, the plug plate 2.3 and the sleeve plate 3.1 are located in the first groove portion 1.1.1, and the strip convex plate 3.2 has a threaded channel matched with the screw rod 5.1, the first air outlet nozzle 3.3 is connected to the sleeve plate 3.1 through a first connecting pipe 3.5, and the second air outlet nozzle 3.4 is connected to the sleeve plate 3.1 through a second connecting pipe 3.6. The convex plate 3.2 is located in the second groove portion 1.1.2, the partition 1.4 has a plurality of strip through grooves 1.4.1, the first connecting tube 3.5, the second connecting tube 3.6 and the strip through grooves 1.4.1 are equal in number, and each strip through groove 1.4.1 has one first connecting tube 3.5 and one second connecting tube 3.6; the end plate 1.3 has a plurality of air outlet channels, the number of the air outlet channels and the strip through grooves 1.4.1 are equal and the two correspond one to one; a plurality of LED light-emitting units 4 are arranged in a row, and the LED light-emitting units 4 have a plurality of mutually parallel heat dissipating fins 4.1, the number of heat dissipating fins 4.1 of each LED light-emitting unit 4 is one more than the number of the strip through grooves 1.4.1, the heat dissipating fins 4.1 are located below the partition 1.4, and there is one strip through groove 1.4.1 between two adjacent heat dissipating fins 4.1.

[0038] The LED street lamp head can be in a first heat dissipation state, a second heat dissipation state and a third heat dissipation state. In the first heat dissipation state, a plurality of first air outlet nozzles 3.3 are closer to the fixing plate 2.1 than the LED light-emitting unit 4 closest to the fixing plate 2.1, the cooling fan 2.4 operates at a first power, and the length of the screw rod 5.1 exposed through the threaded channel is a first length; in the second heat dissipation state, a plurality of second air outlet nozzles 3.4 are closer to the fixing plate 2.1 than the LED light-emitting unit 4 closest to the fixing plate 2.1, all the second connecting holes are blocked by the plug plate 2.3, and the The cooling fan 2.4 operates at the second power, and the length of the screw rod 5.1 exposed in the threaded channel is the second length; in the third cooling state, the plurality of second air outlet nozzles 3.4 are closer to the fixing plate 2.1 than the LED light-emitting unit 4 closest to the fixing plate 2.1, and all the second connecting holes are not blocked by the plug plate 2.3, and the cooling fan 2.4 operates at the third power, and the length of the screw rod 5.1 exposed in the threaded channel is the third length; the first power is greater than the second power, and the first power is less than the third power; the first length is less than the second length, and the second length is less than the third length. The number of the LED light-emitting units 4 is 8; the directions of the 8 LED light-emitting units 4 from the end plate 1.3 to the fixing plate 2.1 are respectively the first LED light-emitting unit to the eighth LED light-emitting unit; in the second cooling state, the plurality of first air outlet nozzles 3.3 are closer to the fixing plate 2.1 than the fourth LED light-emitting unit; in the third cooling state, there is one first air outlet nozzle 3.3 between two adjacent heat dissipation fins 4.1 of the fourth LED light-emitting unit.

[0039] The LED street lamp head also includes a control box 6, the bottom plate 1.2 has a rectangular through hole, the control box 6 is fixedly connected to the bottom plate 1.2 and is located at the rectangular through hole, a single lamp controller and a driving power supply are installed in the control box 6, the bottom of the control box 6 has a plurality of strip-shaped air outlet holes 6.1, and the plug plate 2.3 also has a strip-shaped through hole 2.3.2 that is connected to the first inner cavity 2.3.1 and the rectangular through hole. The air outlet channel is L-shaped and has an air inlet 1.3.1 and an air outlet 1.3.2, and the air outlet 1.3.2 is located below the end plate 1.3; the fixed plate 2.1 and the top plate 1.1 are fixedly connected by a plurality of fixing bolts 7.

[0040] Working principle: The LED street lamp head of the present application has multiple LED light-emitting units, so different lighting modes can be used in different time periods. For example, 8 LED light-emitting units are turned on together to achieve lighting at night. At midnight, only 4 LED light-emitting units are turned on to achieve lighting.

[0041] Specifically, Figure 1As shown, in the first heat dissipation state, the 8 LED light-emitting units are all turned on (the ambient temperature is low at this time, although the 8 LED light-emitting units are turned on, the temperature inside the lamp housing is not high), and the heat dissipation of the 8 LED light-emitting units is achieved only through the first air outlet nozzle.

[0042] When only 4 LED light-emitting units are needed to turn on the lighting, Figure 2 As shown, in the second heat dissipation state, only the first to fourth LED light-emitting units need to be cooled, so only the first air outlet nozzle is used to cool the four LED light-emitting units. Since the second connecting hole is blocked, the second air outlet nozzle does not emit air.

[0043] like Figure 3 As shown, in the third heat dissipation state, all eight LED light-emitting units are turned on (at this time, the ambient temperature is high, the eight LED light-emitting units are turned on, and the temperature inside the lamp housing is high), so the cooling fan operates efficiently at this time, and the first air outlet nozzle and the second air outlet nozzle are used for heat dissipation at the same time, and at this time, the first air outlet nozzle and the second air outlet nozzle are relatively cool at the same time, so the heat dissipation effect on the eight LED light-emitting units is very good. In the first heat dissipation state, when the heat dissipation airflow passes through multiple LED light-emitting units, the temperature gradually increases. Therefore, the closer the LED light-emitting unit is to the end plate, the worse the heat dissipation effect. The heat dissipation method of the third heat dissipation state can achieve a more uniform heat dissipation effect for all LED light-emitting units.

[0044] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. An LED street lamp holder based on a new heat dissipation structure, characterized in that: The invention comprises a lamp housing, a fixing base, an air outlet unit and a plurality of LED light-emitting units installed at the lamp housing, wherein the lamp housing comprises a top plate, a bottom plate, an end plate, a partition plate between the top plate and the bottom plate and two side plates, wherein the side plates connect the top plate and the bottom plate, the bottom plate has a rectangular opening, and a plurality of LED light-emitting units are installed at the rectangular opening; the fixing base comprises a fixing plate fixedly connected to the lamp housing, a fixing tube fixedly connected to the fixing plate, a plug-in plate fixedly connected to the fixing tube and a heat dissipation fan fixed to the plug-in plate, the plug-in plate has a first inner cavity, the air outlet unit comprises a sleeve plate inserted by the plug-in plate, the sleeve plate has a second inner cavity connected to the first inner cavity, and the heat dissipation airflow of the heat dissipation fan can enter the second inner cavity through the first inner cavity; the bottom plate also has a plurality of strip-shaped air inlet holes located below the heat dissipation fan, and a temperature sensor is installed in the lamp housing.

2. The LED street lamp holder based on the novel heat dissipation structure according to claim 1 is characterized in that: A driving motor is also installed at the fixing seat, and the driving motor drives a screw rod; the air outlet unit also includes a strip convex plate fixedly connected to the sleeve plate, a plurality of first air outlet nozzles and a plurality of second air outlet nozzles, the strip convex plate has a threaded channel matched with the screw rod, the first air outlet nozzle is connected to the sleeve plate through a first connecting pipe, and the second air outlet nozzle is connected to the sleeve plate through a second connecting pipe, the sleeve plate has a plurality of first connecting holes connected to the first connecting pipe and a plurality of second connecting holes connected to the second connecting pipe; the top plate has a first groove portion and a second groove portion connected to the first groove portion, the plug plate and the sleeve plate are located in the first groove portion, and the strip convex plate Located in the second groove portion, the partition has a plurality of strip through grooves, the first connecting tube, the second connecting tube and the strip through grooves are equal in number, and each strip through groove has one first connecting tube and one second connecting tube; the end plate has a plurality of air outlet channels, the number of the air outlet channels and the strip through grooves are equal and the two correspond one to one; a plurality of LED light-emitting units are arranged in a row, and the LED light-emitting units have a plurality of mutually parallel heat dissipation fins, the number of heat dissipation fins of each LED light-emitting unit is one more than the number of the strip through grooves, the heat dissipation fins are located below the partition, and there is one strip through groove between two adjacent heat dissipation fins.

3. The LED street lamp holder based on the novel heat dissipation structure according to claim 2 is characterized in that: The LED street lamp head can be in a first heat dissipation state, a second heat dissipation state and a third heat dissipation state. In the first heat dissipation state, a plurality of first air outlet nozzles are closer to the fixing plate than the LED light-emitting unit closest to the fixing plate, the heat dissipation fan operates at a first power, and the length of the screw rod exposed through the threaded channel is a first length; in the second heat dissipation state, a plurality of second air outlet nozzles are closer to the fixing plate than the LED light-emitting unit closest to the fixing plate, all the second connecting holes are blocked by the plug plate, the heat dissipation fan operates at a second power, and the length of the screw rod exposed through the threaded channel is a second length; in the third heat dissipation state, a plurality of second air outlet nozzles are closer to the fixing plate than the LED light-emitting unit closest to the fixing plate, all the second connecting holes are not blocked by the plug plate, the heat dissipation fan operates at a third power, and the length of the screw rod exposed through the threaded channel is a third length; the first power is greater than the second power, and the first power is less than the third power; the first length is less than the second length, and the second length is less than the third length.

4. The LED street lamp holder based on the novel heat dissipation structure according to claim 3 is characterized in that: The number of the LED light-emitting units is 8; the 8 LED light-emitting units are respectively from the first LED light-emitting unit to the eighth LED light-emitting unit in the direction from the end plate to the fixed plate; in the second heat dissipation state, the plurality of first air outlet nozzles are closer to the fixed plate than the fourth LED light-emitting unit; in the third heat dissipation state, there is one first air outlet nozzle between two adjacent heat dissipation fins of the fourth LED light-emitting unit.

5. The LED street lamp holder based on the novel heat dissipation structure according to claim 3 is characterized in that: It also includes a control box, which has a rectangular through hole at the bottom plate. The control box is fixedly connected to the bottom plate and is located at the rectangular through hole. A single lamp controller and a driving power supply are installed in the control box. The bottom of the control box has a plurality of strip-shaped air outlet holes, and the plug plate also has a strip-shaped through hole that is connected to the first inner cavity and the rectangular through hole.

6. The LED street lamp holder based on the novel heat dissipation structure according to claim 3 is characterized in that: The air outlet channel is L-shaped and has an air inlet and an air outlet, and the air outlet is located below the end plate; the fixed plate and the top plate are fixedly connected by a plurality of fixing bolts.

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