Solar-powered locker

Abstract

A solar-powered locker, comprising a cabinet body, a main control module, a solar module, and a battery module and a sensor module which are connected to the main control module. The solar module is further connected to the battery module. The sensor module at least comprises one of a smoke sensor, a temperature sensor, a water ingress sensor, a tilt sensor, and a vibration sensor, and each sensor is communicatively connected to the main control module. The smoke sensor and the temperature sensor are arranged adjacent to the battery module, the tilt sensor and the vibration sensor are arranged adjacent to the main control module, and the water ingress sensor is arranged at the bottom of the cabinet body. When an abnormal temperature or a fire occurs in the battery module in the locker, or when the locker is subjected to external anomalies such as water ingress, vibration, or tilting, the abnormal situation can be promptly reported to the backend, thereby significantly improving battery safety and storage safety.

Description

A solar-powered storage cabinet

[0001] This application claims priority to Chinese Patent Application No. 202421775072.9, filed on July 24, 2024, entitled "A Solar Cell Storage Cabinet", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of storage cabinets, and more particularly to a solar cell storage cabinet. Background Technology

[0003] With the rapid development of e-commerce and the continuous increase in the volume of express delivery and food delivery services, the demand for smart lockers has also increased. Traditional lockers usually use mains power, which presents problems such as high construction and wiring costs and high electricity costs in actual use. In addition, there are problems that cannot be connected to mains power in the deployment scenarios. To solve the above problems, solar-powered lockers have emerged.

[0004] Currently, solar-powered lockers on the market can be roughly divided into two schemes: (1) Using an industrial control computer based on ARM architecture and Android operating system in conjunction with a touch screen to realize human-computer interaction, the industrial control computer communicates with the control board to realize the control of the storage compartments, and the power supply part adds solar panels and batteries. This type of scheme has high power consumption, high cost, and requires the use of high-power battery packs; (2) Based on a microcontroller, using buttons in conjunction with an LCD display to realize human-computer interaction, the microcontroller IO directly drives the control circuit to realize the control of the storage compartments. This scheme also has high power consumption, and still requires high-power battery packs to meet the battery life requirements. Both of these schemes have high power consumption and require high-power battery packs, resulting in high costs.

[0005] In addition, the inventors realized that existing solar-powered lockers usually only have one set of battery interfaces, resulting in a short battery replacement cycle, which increases labor costs. Furthermore, most solar-powered lockers lack corresponding detection and protection mechanisms, leading to poor battery safety and storage safety. Summary of the Invention

[0006] This utility model provides a solar cell storage cabinet to solve the problems of poor battery safety and storage safety in existing solar cell storage cabinets.

[0007] To achieve the above objectives, this utility model provides a solar-powered storage cabinet, comprising a cabinet body, a main control module, a solar module, and a battery module and a sensor module connected to the main control module. The solar module is also connected to the battery module. The sensor module includes at least one of a smoke sensor, a temperature sensor, a water immersion sensor, a tilt sensor, and a vibration sensor, and each sensor is communicatively connected to the main control module. The smoke sensor and temperature sensor are arranged adjacent to the battery module, the tilt sensor and vibration sensor are arranged adjacent to the main control module, and the water immersion sensor is arranged at the bottom of the cabinet body.

[0008] The benefits of this approach are that solar-powered storage cabinets can quickly report abnormal situations to the backend when the battery module experiences abnormal temperature or catches fire, or when the storage cabinet is subjected to abnormal external forces such as water immersion, vibration, or tilting, which can significantly improve battery safety and storage safety.

[0009] Furthermore, the battery module includes a battery charging and discharging circuit and at least one battery pack. The battery charging and discharging circuit includes charging branches and discharging branches matching the number of battery packs. Each charging branch includes a first controllable switch, and each discharging branch includes a second controllable switch and a first diode. Each battery pack is connected to a solar module via the first controllable switch in its matching charging branch, and connected to the anode of the first diode in its matching discharging branch via the second controllable switch. The cathode of the first diode in the discharging branch is connected to the power interface of the main control module. The main control module controls the connection of the first controllable switch in the charging branch and the second controllable switch in the discharging branch.

[0010] The benefits of this approach are: the solar-powered storage cabinet features a multi-battery charging and discharging design, and the main control module can automatically switch the charging and discharging states of the battery packs according to their respective power levels, thereby improving the utilization rate of solar power generation, enhancing battery life, and reducing maintenance costs.

[0011] Furthermore, the discharge branch also includes a first D flip-flop, the main control module is connected to the input terminal of the first D flip-flop in the discharge branch, and the output terminal of the first D flip-flop controls the second controllable switch connected in the discharge branch.

[0012] The beneficial effect of doing this is that the main control module can control the on / off state of the discharge branch by controlling the output state of the D flip-flop, thereby controlling whether each battery pack is discharged.

[0013] Furthermore, the main control module is provided with a first external communication interface, which is used to communicate with the main control modules of other solar cell storage cabinets.

[0014] The benefit of doing this is that by reserving an external communication interface for the main control module, it is possible to enable communication between the various storage cabinets when multiple solar-powered storage cabinets are used in parallel.

[0015] Furthermore, the cabinet includes a main control compartment and a battery compartment. The main control compartment is for placing the main control module, and the battery compartment is for placing the battery module. The battery compartment is located below the main control compartment. The main control module is arranged above the bottom partition of the main control compartment, and the tilt sensor and vibration sensor are arranged below the bottom partition of the main control compartment. The battery module is arranged on the bottom partition of the battery compartment, the smoke sensor is arranged on the top partition of the battery compartment, and the temperature sensor is arranged on the side wall of the battery compartment.

[0016] The benefits of this approach are: placing the battery compartment below the main control compartment facilitates operation; and placing each sensor in the most advantageous position enables timely detection of abnormalities, further enhancing battery safety and storage safety.

[0017] Furthermore, a first U-shaped support frame is provided inside the main control compartment, and the main control module is detachably fixed to the bottom partition of the main control compartment through the first U-shaped support frame.

[0018] The advantage of this approach is that if the main control module changes, only the U-shaped support frame needs to be replaced, without modifying the cabinet, thus increasing the product's modifiability.

[0019] Furthermore, a wire-passing hole is provided at the rear of the bottom partition of the main control grid to connect with the battery grid.

[0020] The benefits of doing this are that it allows the cables from the battery compartments to be directly connected to the main control compartment, simplifying the wiring path and reducing the amount of cables used.

[0021] Furthermore, a second U-shaped support frame is detachably fixed to the top partition of the battery compartment, and the smoke sensor is mounted on the second U-shaped support frame; a third U-shaped support frame is detachably fixed to the side wall of the battery compartment, and the temperature sensor is mounted on the third U-shaped support frame.

[0022] The advantages of this approach are: the detachable and fixed design makes it easy to replace sensors without modifying the cabinet, thus increasing the product's versatility.

[0023] Furthermore, the rear wall of the battery compartment is provided with an air vent, and the bottom partition and side wall of the battery compartment are also covered with shock-absorbing cotton.

[0024] The benefits of this design are: the rear wall of the battery compartment has an air vent, which can better regulate the heat generated by the battery and other components during operation; the bottom partition and side walls of the battery compartment are lined with shock-absorbing cotton, which can protect the battery.

[0025] Furthermore, the main control module adopts the STM32 low-power series MCU, and the smoke sensor, temperature sensor, water immersion sensor, vibration sensor, and tilt sensor are all selected as switch type sensors.

[0026] The benefit of doing this is that by using a low-power MCU main control module and a switching sensor, the overall power consumption of the device can be reduced. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.

[0028] Figure 1 is a circuit diagram of a solar cell storage cabinet according to an embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of the water immersion sensor assembly of the solar cell storage cabinet in one embodiment of the present invention;

[0030] Figure 3 is a circuit diagram of the water immersion sensor detection circuit of a solar cell storage cabinet according to an embodiment of the present invention;

[0031] Figures 4(a) and 4(b) are schematic diagrams of the front and side arrangements of the solar modules of the solar cell storage cabinet in one embodiment of the present invention;

[0032] Figure 5 is a circuit diagram of the multi-battery pack charging and discharging control circuit of a solar cell storage cabinet in one embodiment of the present invention.

[0033] Figure 6 is a circuit diagram of the main and auxiliary cabinet wake-up circuit of the solar cell storage cabinet in one embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of the external appearance of a solar cell storage cabinet in one embodiment of the present invention;

[0035] Figures 8(a), 8(b), and 8(c) are schematic diagrams of the internal arrangement of the main control compartment and the battery compartment of the solar cell storage cabinet in one embodiment of this utility model. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0037] It should be understood that this invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of this invention to those skilled in the art. In the drawings, for clarity, the dimensions of layers and regions, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout.

[0038] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this utility model, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0039] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0040] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0041] To fully understand this utility model, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0042] Example 1:

[0043] As shown in Figure 1, this embodiment provides a solar-powered storage cabinet, including a cabinet body, a main control module, a solar module, and a battery module and a sensor module connected to the main control module. The solar module is also connected to the battery module. The solar module is located at the top of the cabinet body, while the main control module and the battery module are located inside the cabinet body. The sensor module includes an emergency door detection module, a smoke sensor, a temperature sensor, a water immersion sensor, a tilt sensor, and a vibration sensor. Each sensor is communicatively connected to the main control module. The smoke sensor and temperature sensor are located adjacent to the battery module, the tilt sensor and vibration sensor are located adjacent to the main control module, and the water immersion sensor is located at the bottom of the cabinet body.

[0044] This embodiment, by equipping the solar cell storage cabinet with a smoke sensor, can monitor in real time whether the battery module is burning; by equipping it with a temperature sensor, it can monitor in real time whether the battery module is overheating; by equipping it with a water immersion sensor, it can monitor in real time whether the storage cabinet is flooded; and by equipping it with a tilt sensor and a vibration sensor, it can monitor whether the main control module has been stolen or damaged. Once any of the above situations occur, an alarm can be triggered to notify the relevant personnel to eliminate the risk or fault, which can significantly improve battery safety and storage safety.

[0045] In this embodiment, the sensor module includes various types of sensors, which can improve battery safety and storage safety from multiple aspects. As another implementation, the types of sensors in the sensor module can be arbitrarily combined and arranged from smoke sensors, temperature sensors, water immersion sensors, tilt sensors and vibration sensors.

[0046] In this embodiment, the components of the water immersion sensor are shown in Figure 2, including a water immersion sensor 1, a water immersion sensor bracket 2, and a water immersion sensor cover 3. The water immersion sensor assembly is installed at the bottom of the cabinet, so that in the event of water immersion, the abnormality can be detected early, thereby saving the items in the storage cabinet more quickly.

[0047] The water immersion sensor detection circuit is shown in Figure 3. J9 connects to the power supply pin and signal pin of the water immersion sensor. VCC_12_WATER supplies power to the water immersion sensor. When the water immersion sensor is not triggered, pins 2 and 3 are normally open, and the WATER signal detected by the main control module is low. When the water immersion sensor is triggered, pins 2 and 3 are normally closed, and the WATER signal detected by the main control module is high. At this time, the main control module actively wakes up and reports the abnormal event to the background through the wireless module. The background maintenance personnel can arrange maintenance personnel according to the importance of the fault event.

[0048] In this embodiment, the solar module includes a solar panel, a solar controller, and a solar panel fixing assembly. The solar controller is an MPPT solar controller. Schematic diagrams of the solar module's arrangement are shown in Figures 4(a) and 4(b). The top of the solar cell storage cabinet is equipped with a solar panel fixing frame 1 to support and limit the position of the solar panel 2. The solar panel fixing assembly includes a solar panel fixing plate 3, a solar panel fixing bracket 4, and a solar panel angle adjustment bracket 5. The solar panel fixing frame 1 has an angle limiting slot plate 6, which cooperates with the solar panel angle adjustment bracket 5 to adjust the tilt angle of the solar panel 2, thereby allowing for adjustment of the most suitable angle according to different time periods or different regions. By adjustment, the solar panel can be tilted at an angle of 30° to 90° (e.g., 30°, 45°, 50°, 75° or 90°). Specifically, one side of the solar panel 2 is hinged to the solar panel fixing frame 1 (e.g., using a hinge 7) for rotation. The side of the solar panel 2 facing the solar panel fixing frame 1 is connected to the angle adjustment bracket 5, wherein one end of the angle adjustment bracket 5 is rotatably connected to the solar panel 2 via a rotating shaft assembly 8, and the other end is provided with a limiting structure that cooperates with the angle limiting slot plate 6.

[0049] As other implementation methods, the solar panel angle adjustment bracket can also be implemented using a slider structure, a guide rail structure, etc., as long as it enables the solar panel to adjust the direct angle according to the sun's illumination.

[0050] As another implementation method, the solar-powered locker also includes necessary human-computer interaction modules, such as Bluetooth modules, wireless modules, voice modules, display modules, scanning modules, keyboard modules, etc.

[0051] To achieve a low-power design for the solar-powered storage cabinet, an STM32 low-power MCU is used as the main control module. For example, the STM32L476ZET6 can be used, with sleep power as low as microamps. The smoke sensor, temperature sensor, water immersion sensor, vibration sensor, and tilt sensor in the sensor module are all switch-type sensors, operating in switch detection mode to achieve status detection and event alarm functions. A low-power BLE 5.2 Bluetooth module is used, allowing connection to a mobile app for transmitting operation commands. A multi-mode (LTE Cat M1 / LTE Cat) wireless module is used. The NB2 / EGPRS LPWA module features ultra-low power consumption. The main control module interacts with the backend terminal via a wireless module. The display module uses a 4.2-inch OLED module for human-computer interaction, and the keyboard is a 4*4 matrix keyboard with IO control. Standby power consumption is almost zero, enabling human-computer interaction and active wake-up of the entire device. The scanning module uses a low standby power module to achieve scanning and recognition functions. The main control module controls the memory alloy electric lock through a drive circuit to control the opening and closing of the storage compartments. The battery module uses a lithium iron phosphate battery pack with built-in BMS function and can communicate with the MCU via RS485 to report battery level and charging / discharging status.

[0052] As another implementation method, the battery module can also use ternary lithium batteries, lead-acid batteries, nano batteries, etc., which provide power support for the normal operation of the solar cell storage cabinet.

[0053] In summary, this embodiment, by employing a low-power MCU main control module, can perform reasonable power management and operational module control for the wireless module, Bluetooth module, display module, voice module, and scanning module, thereby achieving a low-power design for the entire device. By adding smoke sensors, temperature sensors, water immersion sensors, vibration sensors, tilt sensors, and emergency door detection functions, abnormal battery temperatures or fires can be quickly reported to the backend, as can abnormal situations caused by external forces such as water immersion, vibration, or tilting of the storage cabinet, significantly improving battery safety and storage safety. Furthermore, all sensors utilize switch-mode detection, meeting the requirement for even lower standby power consumption.

[0054] Example 2:

[0055] This embodiment provides a solar-powered storage cabinet, including a cabinet body, a main control module, a solar module, and a battery module, a human-machine interaction module, and a sensor module connected to the main control module. The solar module is also connected to the battery module. The specific implementation of the main control module, the solar module, the human-machine interaction module, and the sensor module is the same as in Embodiment 1, and will not be repeated here.

[0056] Unlike Embodiment 1, in this embodiment, to achieve multi-battery pack charging and discharging management, the battery module includes a battery charging and discharging circuit and at least one battery pack. The battery charging and discharging circuit includes a charging branch and a discharging branch matching the number of battery packs. The charging branch includes a first controllable switch, and the discharging branch includes a second controllable switch and a first diode. Each battery pack is connected to the solar module (specifically, to the solar controller in the solar module) through the first controllable switch in its matching charging branch, and is connected to the anode of the first diode in its matching discharging branch through the second controllable switch. The cathode of the first diode in the discharging branch is connected to the power interface of the main control module. The main control module controls the connection between the first controllable switch in the charging branch and the second controllable switch in the discharging branch.

[0057] In this embodiment, the discharge branch also includes a first D flip-flop. The main control module is connected to the input terminal of the first D flip-flop in the discharge branch. The output terminal of the first D flip-flop controls the connection of a second controllable switch in the discharge branch. Thus, the main control module can control the on / off state of the second controllable switch in the discharge branch by changing the output state of the first D flip-flop.

[0058] As shown in Figure 5, this embodiment uses a battery module with four battery packs as an example to introduce the multi-battery pack charging and discharging control circuit. After each battery pack is connected, the first D flip-flop in each discharge branch controls the battery pack to discharge state by default. At this time, the main control module is powered on. The function of the first diode in each discharge branch is to prevent backflow due to uneven voltage among the battery packs. After the main control module is powered on, it establishes communication with the battery pack BMS and can read the current battery level of each battery pack. After obtaining the battery level of each battery pack, the main control module can choose to keep only one battery pack supplying power to the main control module (by changing the output state of the first D flip-flop in the discharge branch of the other three battery packs to disconnect the discharge branch and thus shut down the power supply to the battery pack), thereby improving the battery's endurance. At the same time, after obtaining the battery level of each battery pack, the main control module can control the solar module to charge the battery pack with lower power through IO. When the battery pack in the discharge state has a low power, the main control module can switch the high-power battery pack to supply power to the main control module and switch the low-power battery pack to the charging circuit. This can improve the utilization rate of solar charging and reduce manual maintenance costs.

[0059] In summary, this embodiment realizes a multi-battery pack charging and discharging design for solar cell storage cabinets. It can automatically switch the charging and discharging state of the battery packs according to the power of each battery pack, thereby improving the utilization rate of solar power generation, enhancing battery life, and reducing manpower maintenance costs.

[0060] Example 3:

[0061] This embodiment provides a solar-powered storage cabinet, including a cabinet body, a main control module, a solar module, and a battery module, a human-machine interaction module, and a sensor module connected to the main control module. The solar module is also connected to the battery module. The specific implementation of the main control module, solar module, battery module, human-machine interaction module, and sensor module is the same as in Embodiment 2, and will not be repeated here.

[0062] Unlike Embodiment 2, the main control module of the solar cell storage cabinet in this embodiment is equipped with a first external communication interface. This first external communication interface is used to communicate with the main control modules of other solar cell storage cabinets to cope with the situation where multiple storage cabinets are used in parallel in actual applications. By taking one solar cell storage cabinet as the main cabinet and the other solar cell storage cabinets as secondary cabinets, and setting a main and secondary cabinet wake-up mechanism, mutual communication between the main and secondary cabinets can be realized.

[0063] The main and auxiliary cabinet wake-up circuit of this embodiment is shown in Figure 6. J38 and J39 are the first external communication interfaces of the main cabinet and auxiliary cabinet main control modules, respectively. When wiring, pins 1 and 2 are cross-connected, that is, pin 1 of the main cabinet J38 is connected to pin 2 of the auxiliary cabinet J39, and pin 2 of the auxiliary cabinet J39 is connected to pin 1 of the main cabinet J38. In the default sleep state, the main control modules of the main cabinet and auxiliary cabinet detect that the WAKEUP_MAIN signal is high. When the main cabinet needs to wake up the auxiliary cabinet, it sets WAKEUP_FG high. At this time, pin 1 of the main cabinet J38 outputs a 12V level, and pin 2 of the auxiliary cabinet J39 is also 12V. At this time, the auxiliary cabinet transistor Q182 is turned on, and the auxiliary cabinet's main control module detects that the WAKEUP_MAIN signal is pulled low, thereby waking up the auxiliary cabinet and establishing communication between the auxiliary cabinet and the main cabinet. Similarly, when the auxiliary cabinet has an abnormal event, it also wakes up the main cabinet through the above operation, establishes communication between the main cabinet and the auxiliary cabinet, and reports the abnormal event through the main cabinet.

[0064] In summary, this embodiment realizes the wake-up design of the solar-powered storage cabinet when multiple storage cabinets are used in parallel. By reserving a first external communication interface for the main control module and designing a wake-up circuit between the main and auxiliary cabinets, the sleep and wake-up logic of multiple cabinets can be realized, further improving battery life and reducing the power consumption of the whole machine.

[0065] Example 4:

[0066] This embodiment provides a solar-powered storage cabinet, including a cabinet body, a main control module, a solar module, and a battery module, a human-machine interaction module, and a sensor module connected to the main control module. The solar module is also connected to the battery module. The specific implementation of the main control module, solar module, battery module, human-machine interaction module, and sensor module is the same as in Embodiment 2, and will not be repeated here.

[0067] In this embodiment, the cabinet body of the solar cell storage cabinet is divided into several compartments, each of which is equipped with a cabinet door. According to the size of the compartment, it can be divided into large compartment 1, medium compartment 2 and small compartment 3, which are used to place items of different sizes. In practical applications, the solar cell storage cabinet of this embodiment can be used as a sample cabinet, outdoor cabinet, express delivery cabinet, takeaway cabinet, etc. Its external schematic diagram is shown in Figure 7.

[0068] The solar cell storage cabinet includes a main control compartment 4 and a battery compartment 5. The main control compartment 4 is used to place the main control module, and the battery compartment 5 is used to place the battery module. The battery compartment 5 is located below the main control compartment 4. Arranging the battery compartment below the main control compartment makes it easy to operate.

[0069] As shown in Figure 7, the cabinet door of the main control compartment 4 is equipped with a mechanical lock 6, a display screen 7, a keyboard 8, a speaker 9, a scanner 10, etc.

[0070] The internal layout diagrams of the main control compartment and the battery compartment are shown in Figures 8(a), 8(b), and 8(c). The main control compartment 1 is arranged as follows: the main control module is positioned above the bottom partition of the main control compartment, and the tilt sensor and vibration sensor are positioned below the bottom partition of the main control compartment (in this embodiment, the bottom partition of the main control compartment is the top partition of the battery compartment). The main control module can determine whether the locker has been stolen or damaged based on the received signals from the tilt sensor and vibration sensor. The main control compartment also has a U-shaped support frame. The main control module is detachably fixed to the bottom partition of the main control compartment via the first U-shaped support frame. If the main control module is changed, only the U-shaped support frame needs to be replaced, without modifying the cabinet body, increasing the product's modifiability. Four cable routing holes are opened at the rear of the bottom partition of the main control compartment, connecting it to the battery compartment. This allows the battery compartment's cables to be directly connected to the main control compartment, simplifying the wiring path and reducing cable usage. In other embodiments, the specific number of wire holes can be adjusted according to actual needs, and is not limited to four.

[0071] In this embodiment, the main control module has raised grooves around its perimeter to facilitate cable management; a dust cover is also provided inside the main control compartment, which is fitted onto the main control module; and a water-blocking strip is also installed below the cabinet door of the main control compartment.

[0072] As another implementation method, GPS or other positioning devices can be installed on the bottom partition of the main control compartment to locate and track stolen components when the locker is stolen.

[0073] As shown in Figures 8(a), 8(b), and 8(c), the internal arrangement of battery compartment 2 is as follows: the battery modules are arranged on the bottom partition of the battery compartment, the smoke sensor is arranged on the top partition of the battery compartment, and the temperature sensor is arranged on the side wall of the battery compartment. Specifically, a battery mounting bracket is provided on the bottom partition of the battery compartment to ensure the battery position is fixed; a second U-shaped support bracket is detachably fixed on the top partition of the battery compartment, which can be quickly disassembled and assembled. The smoke sensor and fire extinguishing sticker are hung on the second U-shaped support bracket. A third U-shaped support bracket is provided on the side wall of the battery compartment, on which a circuit breaker, a solar controller, and a temperature sensor are hung. With the help of the smoke sensor, temperature sensor, and circuit breaker, the fire of the battery module can be detected in time, and the power supply can be cut off in time when the battery module catches fire, effectively extinguishing the fire.

[0074] As another implementation, the rear wall of the battery compartment is also provided with an air vent, which can better regulate the heat generation of the battery and other devices during operation; the bottom partition and side wall of the battery compartment are also covered with shock-absorbing cotton to protect the battery.

[0075] As another implementation method, the battery slot can be compatible with the installation and placement of various batteries according to customer needs, and the shape of the support frame can be changed as needed, not limited to a Z-shape.

[0076] As another implementation method, in order to further improve the safety of solar cell storage cabinets, surge protectors can be installed inside the cabinet, such as by placing the surge protectors on the side wall of the battery compartments to prevent damage from lightning strikes.

[0077] The water immersion sensor is installed on the bottom plate of the lowest compartment of the solar-powered storage cabinet. When the water immersion sensor comes into contact with water, it conducts electricity, triggers an alarm, and notifies relevant personnel that there is a risk of items being soaked in water.

[0078] The solar cell storage cabinet in this embodiment has the advantages of a compact overall installation structure and small space occupation.

[0079] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A solar cell storage cabinet, comprising a cabinet body, a master control module, a solar module, a battery module and a sensor module connected with the master control module, the solar module also being connected with the battery module; wherein, The sensor module comprises at least one of a smoke sensor, a temperature sensor, a water immersion sensor, an inclination sensor and a vibration sensor, each of which is in communication connection with the main control module; wherein the smoke sensor and the temperature sensor are arranged close to the battery module, the inclination sensor and the vibration sensor are arranged close to the main control module, and the water immersion sensor is arranged at the bottom of the cabinet body.

2. The solar cell storage cabinet of claim 1, wherein, The battery module comprises a battery charging and discharging circuit and at least one battery pack, the battery charging and discharging circuit comprises charging branches and discharging branches matched with the number of the battery packs; wherein the charging branch comprises a first controllable switch, and the discharging branch comprises a second controllable switch and a first diode; each battery pack is connected to a solar module through the first controllable switch in the charging branch matched with the battery pack, and is connected to the anode of the first diode in the discharging branch through the second controllable switch in the discharging branch matched with the battery pack, and the cathode of the first diode is connected to the power interface of the main control module; the main control module controls the first controllable switch in the charging branch and the second controllable switch in the discharging branch.

3. The solar cell storage cabinet of claim 2, wherein, The discharging branch further comprises a first D flip-flop, and the main control module is connected to the input end of the first D flip-flop in the discharging branch, and the output end of the first D flip-flop controls the second controllable switch in the discharging branch.

4. The solar cell storage cabinet of claim 1, wherein, The main control module is provided with a first external communication interface for communication connection with the main control modules of other solar cell storage cabinets.

5. The solar cell storage cabinet of claim 1, wherein, The cabinet body comprises a main control compartment and a battery compartment, the main control compartment is a compartment for placing the main control module, the battery compartment is a compartment for placing the battery module, and the battery compartment is located below the main control compartment; the main control module is arranged above the bottom partition plate of the main control compartment, and the inclination sensor and the vibration sensor are arranged below the bottom partition plate of the main control compartment; the battery module is arranged on the bottom partition plate of the battery compartment, the smoke sensor is arranged on the top partition plate of the battery compartment, and the temperature sensor is arranged on the side wall of the battery compartment.

6. The solar cell storage cabinet of claim 5, wherein, A first H-shaped support frame is arranged in the main control compartment, and the main control module is detachably fixed on the bottom partition plate of the main control compartment through the first H-shaped support frame.

7. The solar cell storage cabinet of claim 5, wherein, A wire hole is formed in the rear part of the bottom partition plate of the main control compartment to communicate with the battery compartment.

8. The solar cell storage cabinet of claim 5, wherein, A second H-shaped support frame is detachably fixed on the top partition plate of the battery compartment, and the smoke sensor is hung on the second H-shaped support frame; a third H-shaped support frame is detachably fixed on the side wall of the battery compartment, and the temperature sensor is hung on the third H-shaped support frame.

9. The solar cell storage cabinet of claim 5, wherein, An air outlet grid is further formed in the rear wall of the battery compartment, and the bottom partition plate and the side wall of the battery compartment are further attached with shock-absorbing cotton.

10. The solar cell storage cabinet of claim 1, wherein, The main control module adopts an STM32 low-power series MCU, and the smoke sensor, the temperature sensor, the water immersion sensor, the vibration sensor and the inclination sensor all adopt on-off type sensors.

Images