Street lamp with active cooling and deashing functions

Abstract

The utility model provides an active cooling deashing street lamp which comprises a lamp panel and a lamp shell, a circuit control board is arranged in an inner cavity of the lamp shell, dust screens are arranged on the side walls of the two sides of the inner cavity of the lamp shell, fans are arranged right opposite to the dust screens, and the fans are driven by a driving mechanism to rotate so that the fans can sequentially rotate forwards and backwards. And the blowing directions of the two fans are kept consistent. According to the utility model, the fan is driven to intermittently rotate positively and negatively by using the motor with the positive and negative rotation function. According to the design, the heat dissipation performance of the street lamp is optimized, the dustproof function is ingeniously combined, the overall performance of the street lamp is remarkably improved, and the service life of the street lamp is remarkably prolonged.

Description

Technical Field

[0001] This utility model relates to the field of street light heat dissipation technology, specifically to a street light with active cooling and dust removal. Background Technology

[0002] Currently, streetlights generally have high power and generate a lot of heat. Most streetlights rely on heat sinks in the lamp housing for heat dissipation. When streetlights are lit for a long time and continue to work at high temperatures, it will affect the luminous efficiency of the lamp panel, accelerate the light decay of the light source, and reduce the lifespan of the lamp. Furthermore, if air convection is used for heat dissipation, dust in the environment can easily enter the lamp housing and accumulate on the circuit control board, which will also seriously affect the luminous efficiency of the streetlight. Utility Model Content

[0003] The purpose of this utility model is to improve and innovate upon the shortcomings and problems existing in the background technology, and to provide a street light with active cooling and dust removal.

[0004] An active cooling and dust removal street light includes a lamp panel and a lamp housing. A circuit control board is provided in the inner cavity of the lamp housing. Dustproof nets are provided on both side walls of the inner cavity of the lamp housing. A fan is provided directly opposite the dustproof net. The fan is driven to rotate by a drive mechanism so that the fan rotates in opposite directions in sequence, and the airflow direction of the two fans is consistent.

[0005] A further embodiment is that the driving mechanism includes a motor with forward and reverse rotation functions, and a first rotating shaft is rotatably connected to both sides of the inner cavity of the lamp housing. The motor is used to rotate the first rotating shaft. A first bevel gear is installed on the first rotating shaft. The first bevel gear is meshed with a second bevel gear. The middle part of the gear shaft of the second bevel gear is rotatably connected to a second support plate. The fan is installed at the end of the gear shaft of the second bevel gear.

[0006] A further option is that the fan is a cooling fan with a forward and reverse rotating motor.

[0007] A further embodiment is that the output end of the motor is fixedly connected to the end of one of the first rotating shafts, and a third bevel gear is also installed on the two first rotating shafts. The third bevel gear is meshed with a fourth bevel gear, and both fourth bevel gears are installed on the second rotating shaft. The middle part of the second rotating shaft is rotatably connected to the first support plate.

[0008] A further option is to also install a temperature sensor inside the lamp housing.

[0009] A further embodiment is that a base is also installed on the side wall of the lamp housing cavity, and the end of the base away from the side wall of the lamp housing cavity extends to the middle of the lamp housing cavity and the circuit control board is installed thereon.

[0010] A further option is to provide through holes in the lamp housing wall.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a motor with forward and reverse rotation function to drive the first rotating shaft to rotate intermittently in both directions, thereby driving the fans on both sides of the lamp housing cavity to rotate intermittently in both directions, which facilitates changing the airflow direction of the fans; on the one hand, it changes the direction of the airflow through the circuit control board, which is conducive to heat dissipation of the circuit control board, so as to achieve the purpose of active cooling and improve the luminous efficiency of the street light; on the other hand, it changes the direction of the airflow through the dustproof net, which is convenient to clean the dust attached to the dustproof net on both sides of the lamp housing cavity in sequence; and the dustproof net can prevent dust from entering the inner cavity of the lamp housing, which is conducive to improving the luminous stability of the street light. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the structure of an active cooling and dust removal street light provided for an embodiment of this utility model. Figure 1 ;

[0014] Figure 2 A schematic diagram of the structure of an active cooling and dust removal street light provided for an embodiment of this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic cross-sectional view of an active cooling and dust removal street light provided in an embodiment of the present invention.

[0016] Reference numerals in the attached drawings: 1. Lamp panel; 2. Lamp housing; 3. Dustproof net; 4. Base; 5. Circuit control board; 6. Temperature sensor; 7. Motor; 8. First rotating shaft; 9. First bevel gear; 10. Second bevel gear; 11. Third bevel gear; 12. Fourth bevel gear; 13. Second rotating shaft; 14. First support plate; 15. Fan; 16. Through hole; 17. Second support plate. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figures 1-3 This utility model provides an active cooling and dust-removing street light, including a lamp panel 1 and a lamp housing 2. A circuit control board 5 is installed inside the lamp housing 2. Dustproof nets 3 are installed on both side walls of the lamp housing 2's inner cavity. The dustproof nets 3 prevent dust from the external environment from entering the inner cavity of the lamp housing 2, which helps improve the operational stability of the circuit control board 5. A fan 15 is positioned opposite the dustproof net 3. The fan 15 is driven by a motor 7 with forward and reverse rotation functions, so that the fan 15 rotates in both directions sequentially, and the airflow direction of the two fans 15 remains consistent. A temperature sensor 6 is also installed inside the lamp housing 2's inner cavity to monitor the temperature of the lamp housing 2's inner cavity in real time. The circuit control board 5 includes a constant current circuit and a motor control circuit. The constant current circuit drives the LED chip to emit light, and the motor control circuit controls the motor 7 to intermittently rotate in both directions based on the temperature value monitored by the temperature sensor 6.

[0021] Specifically, the output end of the motor 7 is fixedly connected to a first rotating shaft 8. Two first rotating shafts 8 are provided, each rotatably connected to one side of the inner cavity of the lamp housing 2. A first bevel gear 9 is mounted on the outer surface of the middle portion of each first rotating shaft 8. The first bevel gear 9 meshes with a second bevel gear 10. The middle portion of the shaft of the second bevel gear 10 is rotatably connected to a second support plate 17. The second support plate 17 is a strip-shaped plate mounted on the side wall of the inner cavity of the lamp housing 2. The fan 15 is mounted at the end of the shaft of the second bevel gear 10. A third bevel gear 11 is also mounted on each of the two first rotating shafts 8. The third bevel gear 11 meshes with a fourth bevel gear 12. Both fourth bevel gears 12 are mounted on a second rotating shaft 13, the middle portion of which is rotatably connected to a first support plate 14. After the motor 7 drives one of the first rotating shafts 8 to rotate, the bevel gears will drive the fans 15 on both sides of the inner cavity of the lamp housing 2 to rotate simultaneously in opposite directions. One fan 15 is used to blow cold air from the outside environment into the inner cavity of the lamp housing 2, while the other fan 15 is used to blow hot air from the inner cavity of the lamp housing 2 into the outside environment. Because the motor 7 rotates intermittently in both directions, the rotation direction of the fans 15 on both sides of the inner cavity of the lamp housing 2 is changed intermittently. On the one hand, the direction of airflow through the circuit control board 5 is changed, which is conducive to heat dissipation of the circuit control board 5, so as to achieve the purpose of active cooling and improve the luminous efficiency of the street light. On the other hand, the direction of airflow through the dustproof net 3 is changed, which makes it easier to clean the dust attached to the dustproof net 3 on both sides of the inner cavity of the lamp housing 2 in turn.

[0022] It should be noted that the fan 15 can also be a cooling fan with a forward and reverse rotation motor. In this case, the fan 15 and the forward and reverse rotation motor are integrated together. The circuit control board 5 controls the forward and reverse rotation motors corresponding to the fan 15 on both sides of the inner cavity of the lamp housing 2 to realize the intermittent forward and reverse rotation of the fan 15. Of course, other transmission methods can also be used to realize the intermittent forward and reverse rotation of the fan 15, all of which are within the protection scope of this application.

[0023] Preferably, a base 4 is also installed on the side wall of the inner cavity of the lamp housing 2. The end of the base 4 away from the side wall of the inner cavity of the lamp housing 2 extends to the middle of the inner cavity of the lamp housing 2 and the circuit control board 5 is installed thereon. The dustproof net 3 is set in the middle of the side wall of the lamp housing 2, so that the airflow is directly directed to the circuit control board 5, which helps to improve the heat dissipation efficiency of the circuit control board 5.

[0024] Preferably, a through hole 16 is provided on the bottom wall of the lamp housing 2, which can promptly drain rainwater that enters the inner cavity of the lamp housing 2 through the dustproof net 3.

[0025] The working principle of this utility model is as follows: The power control board 5 of this utility model includes a constant current circuit and a motor control circuit. The constant current circuit is used to drive the LED chip so that the LED chip emits light. When the temperature sensor 6 detects that the temperature inside the lamp housing 2 is higher than the set value, the motor 7 starts to work, driving the fan 15 to rotate intermittently in both directions. When the fans 15 at both ends of the lamp housing 2 rotate in the forward direction, cold air is drawn in from one end and hot air is blown out from the other end, blowing away the dust on the dustproof mesh 3 on one side at the same time. After working for a period of time, the fan 15 rotates in the reverse direction, and the airflow direction is exactly the opposite. The end that receives cold air becomes the end that delivers hot air, and the end that delivers hot air blows the hot air out of the cavity, while blowing away the dust on the dustproof mesh 3 on the other side. In this way, the fan 15 rotates in both directions for a period of time, forming a strong air convection to actively dissipate heat from the circuit control board 5. At the same time, while dissipating heat, the fan 15 blows out the dust, blowing away the accumulated dust on the dustproof mesh 3 to achieve the effect of cleaning.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0027] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0028] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A street light with active cooling and dust removal, comprising a lamp panel (1) and a lamp housing (2), wherein a circuit control board (5) is disposed in the inner cavity of the lamp housing (2), characterized in that: Dustproof nets (3) are provided on both sides of the inner cavity of the lamp housing (2). A fan (15) is provided directly opposite the dustproof net (3). The fan (15) is driven to rotate by a drive mechanism so that the fan (15) rotates in opposite directions in sequence, and the airflow direction of the two fans (15) is consistent. The driving mechanism includes a motor (7) with forward and reverse rotation function. The inner cavity of the lamp housing (2) is rotatably connected to a first rotating shaft (8). The motor (7) is used to rotate the first rotating shaft (8). A first bevel gear (9) is installed on the first rotating shaft (8). The first bevel gear (9) is meshed with a second bevel gear (10). The middle part of the gear shaft of the second bevel gear (10) is rotatably connected to the second support plate (17). The fan (15) is installed at the end of the gear shaft of the second bevel gear (10).

2. The street light with active cooling and dust removal according to claim 1, characterized in that: The fan (15) is a cooling fan with a forward and reverse rotating motor.

3. A street light with active cooling and dust removal according to claim 1, characterized in that: The output end of the motor (7) is fixedly connected to the end of one of the first rotating shafts (8). A third bevel gear (11) is also installed on the two first rotating shafts (8). The third bevel gear (11) is meshed with a fourth bevel gear (12). Both fourth bevel gears (12) are installed on the second rotating shaft (13). The middle part of the second rotating shaft (13) is rotatably connected to the first support plate (14).

4. A street light with active cooling and dust removal according to claim 1, characterized in that: A temperature sensor (6) is also provided inside the lamp housing (2).

5. A street light with active cooling and dust removal according to claim 1, characterized in that: A base (4) is also installed on the side wall of the inner cavity of the lamp housing (2). The end of the base (4) away from the side wall of the inner cavity of the lamp housing (2) extends to the middle of the inner cavity of the lamp housing (2) and the circuit control board (5) is installed thereon.

6. A street light with active cooling and dust removal according to claim 1, characterized in that: A through hole (16) is provided on the bottom wall of the lamp housing (2).

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