A photovoltaic panel street light energy storage device

Abstract

An energy storage device for photovoltaic streetlights, relating to the field of power energy storage technology, includes a base, a connecting rod, and a housing. The base is fixedly installed on the light pole, and the top surface of the base is used to place the housing. The top surface of the base is provided with a slot for inserting the end of the connecting rod. An energy storage unit is disposed inside the housing, and multiple fasteners for encircling the streetlight pole are provided on the back of the housing along the vertical direction. The multiple fasteners are divided into two groups, which are located on both sides of the photovoltaic streetlight and are staggered. The connecting rod is used to pass through each fastener, which solves the problem of traditional energy storage devices easily slipping off.

Description

Technical Field

[0001] The utility model relates to the field of power storage technology, specifically to an energy storage device for photovoltaic streetlights. Background Technology

[0002] Currently, most streetlights in cities are powered by the public power grid. However, as we move towards carbon neutrality, fossil fuels will become increasingly scarce. Solar energy, as an important means of achieving carbon neutrality in the future, is being vigorously promoted in various fields. In the field of streetlights, this means using photovoltaic panels to directly power the lights. However, the stability of photovoltaic panels is relatively low due to the influence of sunlight intensity and cloud cover.

[0003] Furthermore, nighttime is the prime time for streetlights to be used, but there is no sunlight, which greatly limits the use of photovoltaic streetlights. Therefore, it is necessary to use appropriate energy storage devices to enable photovoltaic streetlights to operate stably at night. However, traditional battery packs are simply installed on the light pole with clamps, but they are prone to slipping off after a long time, requiring staff to conduct regular inspections.

[0004] Therefore, we propose an energy storage device with high installation robustness. Utility Model Content

[0005] The purpose of this invention is to provide an energy storage device for photovoltaic streetlights, which solves the problem of traditional energy storage devices being prone to slipping.

[0006] This utility model is achieved through the following technical solution: A photovoltaic panel street light energy storage device includes a base, a series rod and a housing. The base is fixedly installed on the light pole, the top surface of the base is used to place the housing, and the top surface of the base is provided with a slot for inserting the tail end of the series rod. An energy storage unit is installed inside the housing. Multiple fasteners for surrounding the street light pole are provided on the back of the housing along the vertical direction. The multiple fasteners are divided into two groups, which are located on both sides of the photovoltaic street light, and the two groups of fasteners are staggered. A connecting rod is used to pass through each fastener.

[0007] Furthermore, the energy storage unit includes a battery module, a PCS module, and a BMS module, wherein the power input and power output terminals of the battery module are electrically connected to the PCS module, and the information interaction terminal of the battery module is electrically connected to the BMS module; the input terminal of the PCS module is electrically connected to the photovoltaic panel of the photovoltaic street light, and the output terminal of the PCS module is electrically connected to the lamp of the photovoltaic street light; the information interaction terminal of the BMS module is electrically connected to the PCS module.

[0008] Furthermore, the battery module is composed of multiple battery packs connected in series.

[0009] Furthermore, the battery pack is a lithium battery.

[0010] Furthermore, the top of the housing is provided with a waterproof connector, the input end of which is electrically connected to the photovoltaic panel of the photovoltaic street light, and the output end of which is electrically connected to the PCS module.

[0011] Furthermore, the fixing component includes a mounting base, a rotating plate, a gripping rod, and a connecting block. The mounting base is fixedly installed on the back of the housing. A rotating plate is hinged inside the mounting base. The rotating plate is fixedly connected to the head end of the gripping rod. The end end of the gripping rod is fixedly connected to the connecting block. The connecting block is provided with a socket for inserting a connecting rod.

[0012] Furthermore, the slot is provided with an internal thread, and the tail end of the connecting rod is provided with a corresponding external thread.

[0013] Furthermore, the head end of the connecting rod is provided with a sealing block with a diameter larger than that of the connecting rod.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: This utility model discloses an energy storage device for photovoltaic street lights. By using a base combined with multiple fixing parts and series rods for fixing, the stability of the energy storage device during installation can be effectively improved, and the energy storage device can be prevented from slipping.

[0015] In addition, the use of a shell and waterproof joints can improve the overall waterproof effect of this energy storage device, thereby enhancing its safety during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the structural method of part A in the diagram; Figure 3 This is a schematic diagram of the energy storage unit in this utility model.

[0017] Reference numerals: 1. Base; 2. Housing; 3. Connecting rod; 4. Energy storage unit; 41. Battery module; 42. PCS module; 43. BMS module; 5. Fixture; 51. Mounting base; 52. Rotating plate; 53. Grab rod; 54. Connecting block; 6. Waterproof connector; 7. Photovoltaic street light. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Example 1 like Figures 1-3 The energy storage device for a photovoltaic street light shown includes a base 1, a connecting rod 3 and a housing 2. The base 1 is fixedly installed on the light pole, the top surface of the base 1 is used to place the housing 2, and the top surface of the base 1 is provided with a slot for inserting the tail end of the connecting rod 3. An energy storage unit 4 is provided inside the housing 2. Multiple fixing parts 5 for surrounding the lamp post of the street light 7 are provided on the back of the housing 2 along the vertical direction. The multiple fixing parts 5 are divided into two groups, and the two groups of fixing parts 5 are located on both sides of the photovoltaic street light 7, and the two groups of fixing parts 5 are staggered. A series rod 3 is used to pass through each fixing part 5. The base 1 provides vertical support to the housing 2 to resist gravity. The connecting rod 3 passes through multiple fasteners 5 and is inserted into the slot to connect the multiple fasteners 5 into one, providing horizontal tension to the housing 2. This allows the housing 2 to be fixed on the base 1, effectively preventing the energy storage device from slipping.

[0020] In addition, the housing 2 is made of aluminum alloy AL6063 and has an oxidized surface with a sand-textured silver-gray color, which makes its corrosion resistance reach C4 level and will not rust within 15 years. Furthermore, the top cover of the housing 2 is installed with M4 screws and a sealing ring is provided at the connection of the top cover to improve the waterproofness of the housing 2; the bottom cover of the housing 2 has the same structure.

[0021] Example 2 In one embodiment, the energy storage unit 4 includes a battery module 41, a PCS module 42, and a BMS module 43. The power input and output terminals of the battery module 41 are electrically connected to the PCS module 42, and the information interaction terminal of the battery module 41 is electrically connected to the BMS module 43. The input terminal of the PCS module 42 is electrically connected to the photovoltaic panel of the photovoltaic street light 7, and the output terminal of the PCS module 42 is electrically connected to the lamp of the photovoltaic street light 7. The information interaction terminal of the BMS module 43 is electrically connected to the PCS module 42. PCS module 42 is responsible for controlling the charging and discharging process of battery module 41, performing AC-DC conversion, and supplying power to the AC load, namely the photovoltaic street light 7. It mainly consists of a DC / AC bidirectional converter and a control unit. Simultaneously, the PCS can communicate with the BMS via a CAN interface and dry contact transmission to obtain battery status information, enabling protective charging and discharging of the battery to ensure safe operation. Taking photovoltaic panel charging as an example: when the battery module 41's charge reaches a specified lower limit, the BMS immediately notifies the PCS system to connect the photovoltaic panel of the photovoltaic street light 7. The electrical energy output from the photovoltaic panel enters the PCS through the waterproof connector 6, and the PCS converts the solar power into DC power to charge the battery. At the same time, the BMS constantly monitors the battery voltage; when the battery voltage reaches a specified value, it will cut off the power supply to the photovoltaic panel. BMS module 43 is the battery management system, commonly known as the battery nanny or battery manager. The main purpose of BMS module 43 is to intelligently manage and maintain each battery cell, prevent overcharging and over-discharging, extend battery life, and monitor battery status.

[0022] Furthermore, the battery module 41 is composed of multiple battery packs connected in series, specifically, the battery packs are lithium batteries; specifically, the battery module 41 is equipped with a total of 8 100Ah lithium iron phosphate cells, which are connected in series 4-2 with copper busbars to form a whole, which can store 2.56kWh of electrical energy. Lithium iron phosphate batteries, when used as energy storage, have advantages such as long life, high safety, large capacity, and environmental friendliness; in addition, with the cooperation of the PCS module 42, the battery module 41 can convert solar photovoltaic energy into chemical energy and store it in the battery, and then convert the chemical energy into electrical energy to power the street light 7 when needed.

[0023] In addition, the top of the housing 2 is provided with a waterproof connector 6. The input end of the waterproof connector 6 is electrically connected to the photovoltaic panel of the photovoltaic street light 7, and the output end of the waterproof connector 6 is electrically connected to the PCS module 42. The connector 6 is designed to be waterproof to ensure that rainwater cannot enter the energy storage device.

[0024] Example 3 In one embodiment, the fixing component 5 includes a mounting base 51, a rotating plate 52, a gripping rod 53, and a connecting block 54. The mounting base 51 is fixedly installed on the back of the housing 2. The rotating plate 52 is hinged inside the mounting base 51. The rotating plate 52 is fixedly connected to the head end of the gripping rod 53, and the end end of the gripping rod 53 is fixedly connected to the connecting block 54. The connecting block 54 has a socket for inserting the connecting rod 3. When the connecting rod 3 passes through the sockets of the multiple connecting blocks 54 in sequence and enters the slot, the positions of the multiple rotating plates 52 and the gripping rod 53 are fixed. At this time, the multiple gripping rods 53 also grip the lamp post of the photovoltaic street light 7, thereby providing a pulling force to the housing 2 and fixing the housing 2 to the base 1. When it is necessary to replace or repair the energy storage unit 4 inside the housing 2, by pulling out the connecting rod 3, the multiple gripping rods 53 are moved away from the lamp post of the photovoltaic street light 7 under the action of the rotating plate 52, and the housing 2 can be removed to replace or repair the energy storage unit 4. It should be noted that threads can be opened on the body of the grab bar 53, or a non-slip layer with high friction can be installed to prevent the housing 2 from rotating around the pole of the photovoltaic street light 7 in windy weather.

[0025] In addition, the slot is provided with an internal thread, and the tail end of the connecting rod 3 is provided with a corresponding external thread; if necessary, the head end of the connecting rod 3 is provided with a sealing block with a diameter larger than that of the connecting rod 3, which can ensure a stable connection between the connecting rod 3 and multiple fixing parts 5.

[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy storage device for photovoltaic panel streetlights, characterized in that, It includes a base (1), a connecting rod (3) and a housing (2). The base (1) is fixedly installed on the lamp post. The top surface of the base (1) is used to place the housing (2), and the top surface of the base (1) is provided with a slot for inserting the tail end of the connecting rod (3). An energy storage unit (4) is provided inside the housing (2). Multiple fasteners (5) for surrounding the lamp post of the street lamp (7) are provided on the back of the housing (2) in the vertical direction. The multiple fasteners (5) are divided into two groups. The two groups of fasteners (5) are located on both sides of the photovoltaic street lamp (7), and the two groups of fasteners (5) are staggered. A connecting rod (3) is used to pass through each fastener (5).

2. The energy storage device for photovoltaic streetlights according to claim 1, characterized in that: The energy storage unit (4) includes a battery module (41), a PCS module (42), and a BMS module (43). The power input and power output terminals of the battery module (41) are electrically connected to the PCS module (42), and the information interaction terminal of the battery module (41) is electrically connected to the BMS module (43). The input terminal of the PCS module (42) is electrically connected to the photovoltaic panel of the photovoltaic street light (7), and the output terminal of the PCS module (42) is electrically connected to the lamp of the photovoltaic street light (7). The information interaction terminal of the BMS module (43) is electrically connected to the PCS module (42).

3. The energy storage device for photovoltaic streetlights according to claim 2, characterized in that: The battery module (41) is composed of multiple battery packs connected in series.

4. The energy storage device for photovoltaic panel streetlights according to claim 3, characterized in that: The battery pack is a lithium battery.

5. The energy storage device for photovoltaic streetlights according to claim 1, characterized in that: The top of the housing (2) is provided with a waterproof connector (6). The input end of the waterproof connector (6) is electrically connected to the photovoltaic panel of the photovoltaic street light (7), and the output end of the waterproof connector (6) is electrically connected to the PCS module (42).

6. The energy storage device for photovoltaic panel streetlights according to claim 1, characterized in that: The fixing component (5) includes a mounting base (51), a rotating plate (52), a gripping rod (53), and a connecting block (54). The mounting base (51) is fixedly installed on the back of the housing (2). The rotating plate (52) is hinged inside the mounting base (51). The rotating plate (52) is fixedly connected to the head end of the gripping rod (53). The end of the gripping rod (53) is fixedly connected to the connecting block (54). The connecting block (54) is provided with a socket for inserting the connecting rod (3).

7. The energy storage device for photovoltaic panel streetlights according to claim 1, characterized in that: The slot is provided with an internal thread, and the tail end of the connecting rod (3) is provided with a corresponding external thread.

8. The energy storage device for photovoltaic panel streetlights according to claim 1, characterized in that: The head end of the connecting rod (3) is provided with a sealing block with a diameter larger than that of the connecting rod (3).

Images