Solar street lamp with adjustable angle of LED module

Abstract

The utility model discloses solar street lamp of adjustable LED module angle, including upper casing and lower casing, the upper surface fixed with photovoltaic board of upper casing, at least one LED module is installed to lower casing, still include with the drive assembly of LED module quantity consistency, the both ends of LED module are equipped with connecting shaft respectively, and connecting shaft is fixed in the upper surface of lower casing through bearing, and the both ends of LED module still are equipped with rocker respectively, and the connecting shaft of same side is fixed with rocker in same connecting seat, the drive assembly is fixed in the upper surface of lower casing, is used for driving the swing of rocker around connecting shaft, makes LED module change the angle of illumination. This application decouples photovoltaic board and lighting direction, makes photovoltaic board keep fixed south, and drive assembly only adjusts LED module angle, avoids the loss of power generation efficiency, and the linear displacement of drive assembly is converted into the accurate rotation of LED module by rocker transmission structure, realizes the complete independent control of illumination direction and photovoltaic board orientation.

Description

Technical Field

[0001] This utility model relates to the field of solar lighting equipment technology, specifically to a solar street light with adjustable LED module angle. Background Technology

[0002] Traditional integrated solar streetlights typically integrate LED modules and photovoltaic panels into a fixed housing. The photovoltaic panels need to be installed facing south to maximize the reception of solar radiation, which limits the direction of the LED module's illumination. Due to road orientation or terrain differences, the fixed illumination direction often cannot cover the areas that actually need lighting (such as curves, slopes, etc.), creating lighting blind spots.

[0003] Existing technologies attempt to adjust the angle by rotating the entire lamp head, but this requires simultaneously adjusting the orientation of the photovoltaic panel, disrupting its optimal light-receiving angle and reducing power generation efficiency. Other solutions employ independent installation of multiple lamp heads, but these are structurally complex, costly, and difficult to maintain. Therefore, there is an urgent need for a compact solar street light with independently adjustable LED angles, enabling precise control of the lighting direction while maintaining the photovoltaic panel's orientation. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a solar street light with adjustable LED module angle, and solve the problem of fixed illumination direction of solar street lights in traditional technology.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a solar street light with adjustable LED module angle, including an upper shell and a lower shell. A photovoltaic panel is fixed on the upper surface of the upper shell, and at least one LED module is installed on the lower shell. It also includes a driving assembly with the same number of LED modules.

[0007] The LED module is provided with connecting shafts at both ends. The connecting shafts are fixed to the upper surface of the lower housing by bearings. The LED module is also provided with rocker arms at both ends. The connecting shaft and rocker arm on the same side are fixed to the same connecting seat.

[0008] The drive assembly is fixed to the upper surface of the lower housing and is used to drive the rocker arm to swing around the connecting shaft, thereby changing the illumination angle of the LED module.

[0009] In some embodiments, the drive assembly includes a geared motor and a hollow nut tie rod;

[0010] The output screw of the geared motor is threadedly connected to the inside of the hollow nut rod. The other end of the hollow nut rod is provided with a non-circular limiting hole. The rocker arm is inserted into the non-circular limiting hole and contacts and engages with the inner wall surface of the non-circular limiting hole.

[0011] In some embodiments, the non-circular limiting hole is an elongated circular hole, and the long axis of the elongated circular hole is perpendicular.

[0012] In some embodiments, the elongated circular hole is configured such that when the LED module is adjusted to two extreme illumination angles, the bottom inner wall surface of the elongated circular hole contacts and engages with the rocker arm.

[0013] In some embodiments, the lower housing is further provided with a fixing slot and a sealing cover, the geared motor is fixed in the fixing slot, and the sealing cover is provided above the geared motor and at least a portion of the hollow nut pull rod.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] This application decouples the photovoltaic panel from the lighting direction, keeping the photovoltaic panel fixed facing south, and the driving component only adjusts the angle of the LED module to avoid power generation efficiency loss; the rocker arm transmission structure converts the linear displacement of the driving component into the precise rotation of the LED module, realizing completely independent control of the illumination direction and the orientation of the photovoltaic panel;

[0016] The geared motor and the hollow nut rod form a closed-loop transmission chain: the rotational motion of the motor output screw is converted into the axial displacement of the hollow nut rod, and then the swing trajectory of the rocker arm is constrained by the non-circular limit hole, which effectively eliminates transmission gaps and ensures that the angle adjustment has no backlash error. It is especially suitable for long-term outdoor vibration environment and achieves high precision and stability adjustment.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the solar street light with adjustable LED module angle provided in the embodiments of this application.

[0020] Figure 2 This is a schematic diagram of the internal structure of the solar street light with adjustable LED module angle provided in the embodiments of this application after the upper housing is hidden.

[0021] Figure 3 exist Figure 2 A schematic diagram of the internal structure after further concealing the sealing cap.

[0022] Figure 4 This is a schematic diagram of the hollow nut tie rod provided in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the internal structure of the solar street light with adjustable LED module angle provided in the embodiment of this application in the adjusted state.

[0024] Figure 6 yes Figure 5 A schematic diagram of the partial structure of part A in the middle. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] Reference Figures 1 to 6This embodiment proposes a solar street light with adjustable LED module angle, including an upper housing 10 and a lower housing 20. A photovoltaic panel 11 is fixed on the upper surface of the upper housing 10, and at least one LED module 30 is installed on the lower housing 20. It also includes a driving assembly 40 with the same number of LED modules 30.

[0030] The LED module 30 has connecting shafts 31 at both ends. The connecting shafts 31 are fixed to the upper surface of the lower housing 20 by bearings 32. The LED module 30 also has rocker arms 33 at both ends. The connecting shafts 31 and rocker arms 33 on the same side are fixed to the same connecting seat 34.

[0031] The drive assembly 40 is fixed to the upper surface of the lower housing 20 and is used to drive the rocker arm 33 to swing around the connecting shaft 31, so that the LED module 30 changes the illumination angle.

[0032] It should be noted that, in order to solve the problem that traditional streetlights cannot independently adjust the angle of the LED module 30, this embodiment sets up a drive assembly 40 with the same number of LED modules 30. The drive assembly 40 is used to drive the LED module 30 to swing and adjust the angle. Specifically, a bearing 32 is installed on the upper surface of the lower housing 20, and the connecting shafts 31 at both ends of the LED module 30 are respectively inserted into the bearing 32. Since the rocker arm 33 and the connecting shaft 31 are rigidly fixed by the connecting seat 34, when the drive assembly 40 is linked with the rocker arm 33 through its output end, the rocker arm 33 swings and drives the connecting shaft 31 to rotate, causing the LED module 30 to rotate around the axis. The rotation range can be designed to be ±60° to realize the adjustment of the illumination angle.

[0033] Combination Figure 3 and Figure 4 In one implementation, the drive assembly 40 includes a geared motor 41 and a hollow nut tie rod 42;

[0034] The output screw of the geared motor 41 is threadedly connected to the inside of the hollow nut pull rod 42. The other end of the hollow nut pull rod 42 is provided with a non-circular limiting hole 43. The rocker arm 33 is inserted into the non-circular limiting hole 43 and contacts and engages with the inner wall surface of the non-circular limiting hole 43.

[0035] In order to convert the rotational motion of the motor into the precise swing of the rocker arm 33, this embodiment uses a geared motor 41. Preferably, the geared motor 41 is a planetary gear motor. Its output screw is screwed into the internal thread of the hollow nut rod 42. The end of the hollow nut rod 42 connected to the rocker arm 33 is provided with a non-circular limiting hole 43. The rocker arm 33 is inserted into the hole. The motor drives the hollow nut rod 42 to move axially in forward / reverse directions, pushing the rocker arm 33 to pivot around the connecting shaft 31.

[0036] Combination Figure 4Preferably, the non-circular limiting hole 43 is an elongated circular hole with its long axis pointing vertically. To ensure that the rocker arm 33 swings stably in the vertical plane, the non-circular limiting hole 43 is designed as an elongated circular hole with its long axis perpendicular to the mounting surface of the lower housing 20. The rocker arm 33 can only move along the long axis, avoiding transmission jamming caused by lateral offset.

[0037] Combination Figure 5 and Figure 6 Furthermore, the elongated circular hole is configured such that when the LED module 30 is adjusted to two extreme illumination angles, the bottom inner wall of the elongated circular hole contacts and engages with the rocker arm 33. Figure 6 This is a schematic diagram showing a state where one LED module is adjusted in angle while the other LED module remains unchanged.

[0038] To buffer the impact load generated when the LED module 30 rotates to its limit angle, the inner wall surface of the bottom of the elongated circular hole is an arc-shaped curved surface that matches the outer contour of the rocker arm 33. When the LED module 30 rotates to its limit angle, the rocker arm 33 forms a surface contact with the inner wall surface of the bottom of the elongated circular hole, dispersing stress and limiting displacement to prevent motor overload damage.

[0039] Combination Figure 2 Preferably, the lower housing 20 is further provided with a fixing slot 21 and a sealing cover 22. The geared motor 41 is fixed in the fixing slot 21, and the sealing cover 22 covers the geared motor 41 and at least a portion of the hollow nut rod 42. To improve the sealing performance, after the geared motor 41 and the hollow nut rod 42 are fixedly connected to the upper surface of the lower housing 20, the sealing cover 22 is used to cover the motor and at least a portion of the hollow nut rod 42, and waterproof strips are added to the edges. The slot provides shock-resistant support, and the sealing cover 22 improves dustproof and waterproof performance. Disassembly only requires loosening the cover screws.

[0040] In summary, compared with the prior art, the above embodiments have at least the following technical advantages:

[0041] This application decouples the photovoltaic panel 11 from the lighting direction, keeping the photovoltaic panel 11 fixed facing south, and the drive component 40 only adjusts the angle of the LED module 30 to avoid power generation efficiency loss; the rocker arm 33 transmission structure converts the linear displacement of the drive component 40 into the precise rotation of the LED module 30, realizing completely independent control of the lighting direction and the orientation of the photovoltaic panel 11.

[0042] The geared motor 41 and the hollow nut rod 42 form a closed-loop transmission chain: the rotational motion of the motor output screw is converted into the axial displacement of the hollow nut rod 42, and then the swing trajectory of the rocker arm 33 is constrained by the non-circular limiting hole 43, which effectively eliminates transmission gaps and ensures that the angle adjustment has no backlash error. It is especially suitable for long-term outdoor vibration environment and achieves high precision and stability adjustment.

[0043] The LED module 30 and the driver assembly 40 are independently installed on the lower housing 20. If any module fails, it can be directly disassembled and replaced to avoid the entire unit being scrapped. The sealing cover 22 is designed to further isolate rainwater and dust from entering the geared motor 41 and transmission components, extending their service life.

[0044] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A solar street light with adjustable LED module angle, comprising an upper housing and a lower housing, wherein a photovoltaic panel is fixed on the upper surface of the upper housing, and at least one LED module is mounted on the lower housing, characterized in that, It also includes a driving component that is the same number as the number of LED modules; The LED module is provided with connecting shafts at both ends. The connecting shafts are fixed to the upper surface of the lower housing by bearings. The LED module is also provided with rocker arms at both ends. The connecting shaft and rocker arm on the same side are fixed to the same connecting seat. The drive assembly is fixed to the upper surface of the lower housing and is used to drive the rocker arm to swing around the connecting shaft, thereby changing the illumination angle of the LED module.

2. The solar street light with adjustable LED module angle as described in claim 1, characterized in that, The drive assembly includes a geared motor and a hollow nut tie rod; The output screw of the geared motor is threadedly connected to the inside of the hollow nut rod. The other end of the hollow nut rod is provided with a non-circular limiting hole. The rocker arm is inserted into the non-circular limiting hole and contacts and engages with the inner wall surface of the non-circular limiting hole.

3. The solar street light with adjustable LED module angle as described in claim 2, characterized in that, The non-circular limiting hole is an elongated circular hole, and the long axis of the elongated circular hole is perpendicular.

4. The solar street light with adjustable LED module angle as described in claim 3, characterized in that, The elongated circular hole is configured such that when the LED module is adjusted to two extreme illumination angles, the bottom inner wall of the elongated circular hole contacts and engages with the rocker arm.

5. The solar street light with adjustable LED module angle as described in claim 4, characterized in that, The lower housing is also provided with a fixing slot and a sealing cover. The geared motor is fixed in the fixing slot, and the sealing cover is placed over the geared motor and at least a portion of the hollow nut pull rod.

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