Solar fan head with battery easily selected

Abstract

This utility model discloses a solar fan main unit head that facilitates the selection of storage batteries. It includes a controller, a battery pack, and a housing. The controller is fixed inside the housing, which has a battery compartment. Each battery cell of the storage battery pack is inserted into all or part of the compartment. The back of the housing has an opening and a detachable cover. This utility model, by setting a battery compartment inside the solar fan main unit head, achieves a built-in battery pack. All or part of the compartment is used to accommodate the battery cells, facilitating the selection of different numbers of battery cells to meet various application scenarios. The installation method is insertion-type. Furthermore, the opening and detachable cover on the back of the solar fan main unit head housing facilitate assembly.

Description

Technical Field

[0001] This utility model relates to the field of solar fan technology, specifically a solar fan main unit that is easy to select and match with a storage battery. Background Technology

[0002] A solar fan is a fan device that uses solar energy as its primary power source. Its core principle is to convert sunlight into electrical energy through solar panels, which then drives a motor to generate wind. Specifically, the solar panel absorbs sunlight and converts it into direct current (DC) electricity through the photovoltaic effect of semiconductor materials (such as silicon). This electricity is stored in a built-in battery, and the voltage and current are regulated by a controller to ensure stable output. The electrical energy drives a DC motor, which in turn rotates the fan blades, accelerating airflow and creating wind.

[0003] Solar-powered fans, due to their environmental friendliness and portability, are primarily used in outdoor activities such as camping, fishing, and picnics. They require no power outlets, relying on solar power, making them suitable for outdoor environments. They are also ideal for street vending and markets, providing temporary power solutions. Furthermore, they can be used in emergency situations, such as power outages, offering temporary cooling, with some models even capable of charging mobile phones simultaneously. They are also useful in disaster relief: lightweight and portable, they are ideal for emergencies without power.

[0004] Currently, solar fans use batteries of various specifications, with voltages mainly including 12V, 7.4V, and 24V, and capacities mainly including 15000mAh, 5.2Ah, and 7.5Ah, which can be selected and matched to suit different applications. Therefore, it is necessary to design a solar fan main unit that allows for the selection of different numbers of battery units to meet the needs of different usage scenarios. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects and shortcomings of the existing technology and provide a solar fan main unit head that is easy to select and match with batteries, making it easy to select different numbers of battery units and easy to assemble.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A solar fan main unit that facilitates battery selection includes a controller, a battery pack, and a housing. The controller is fixed inside the housing, the housing has a battery compartment, each battery cell of the battery pack is inserted into all or part of the compartments of the battery compartment, and the back of the housing has an opening and a cover that can be detachably installed.

[0008] Furthermore, the housing includes a front housing and a rear housing that are fixedly connected to each other.

[0009] Furthermore, the inner walls of both sides of the front housing are integrally connected with long slots extending backward for mounting the two sides of the controller, and the inner wall of the rear housing is integrally connected with short slots for mounting the rear side of the controller.

[0010] Furthermore, a plurality of battery insertion cylinders extending rearward and arranged in an array are integrally connected to the inner wall of the front housing. Each battery insertion cylinder is used to insert one battery cell of the battery pack. A partition is integrally connected between the inner walls of the two sides of the rear housing on the inner side of the opening. The partition is provided with a plurality of battery insertion holes arranged in an array. Each battery insertion hole is used to insert one battery cell of the battery pack.

[0011] Furthermore, the rear ends of the plurality of battery insert cylinders abut against the front side of the partition, and the plurality of battery insert cylinders correspond one-to-one with the plurality of battery sockets. The plurality of battery insert cylinders and the plurality of battery sockets constitute the battery compartment, and each battery insert cylinder and its corresponding battery socket constitute a compartment of the battery compartment.

[0012] Furthermore, the partition plate is integrally connected to a connecting post on the side facing the cover plate, and each connecting post has an inwardly extending threaded blind hole at its end. The cover plate has a threaded through hole, and screws are screwed into the corresponding threaded through hole and threaded blind hole from the outside to the inside in sequence.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model features a battery compartment inside the solar fan main unit head. In addition to the built-in battery pack, all or part of the compartment is used to accommodate the battery cells of the battery pack, which facilitates the selection of different numbers of battery cells to meet different usage scenarios. The installation method is plug-in. Furthermore, an opening is provided on the back of the solar fan main unit head housing and a removable cover is installed for easy assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0017] Figure 3 for Figure 2 A partial structural diagram.

[0018] Figure 4 This is a schematic diagram of the mechanism of this utility model. Figure 3 (Excluding cover plate).

[0019] Figure 5 for Figure 4 A partial structural diagram.

[0020] Figure 6 This is a schematic diagram of the internal structure of the present invention. Figure 1 .

[0021] Figure 7 for Figure 6 A partial structural diagram.

[0022] Figure 8 This is a schematic diagram of the internal structure of the present invention. Figure 2 .

[0023] Figure 9 for Figure 8 A partial structural diagram.

[0024] Figure 10 This is a schematic diagram of the front housing structure in this utility model.

[0025] Figure 11 for Figure 10 A partial structural diagram.

[0026] Figure 12 This is a schematic diagram of the rear shell structure in this utility model.

[0027] Figure 13 for Figure 12 A partial structural diagram.

[0028] Figure 14 This is a schematic diagram of the assembly structure of the fan head and base of the solar fan of this utility model. Detailed Implementation

[0029] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figure 1-14 A solar fan main unit that is easy to select and match with a storage battery includes a controller 1, a battery pack 2 and a housing 3. The controller 1 is fixed inside the housing 3. The housing 3 has a battery compartment 4 inside. Each battery unit of the battery pack 2 is inserted into all or part of the compartments of the battery compartment 4. The back of the housing 3 has an opening 5 and a cover plate 6 that can be detachably installed.

[0031] In this utility model, the housing 3 includes a front housing 31 and a rear housing 32 that are fixedly connected to each other.

[0032] In this utility model, the inner walls of both sides of the front housing 31 are integrally connected with long slots 7 extending backward, so as to realize the mounting of the two sides of the controller 1. The inner wall of the rear housing 32 is integrally connected with short slots 8 for mounting the rear side of the controller 1.

[0033] This allows the controller 1 to be fixed inside the housing 3.

[0034] In this invention, twelve battery insertion cylinders 9 extending rearward and arranged in an array are integrally connected to the inner wall of the front housing 31. Each battery insertion cylinder 9 is used to insert one battery unit of the battery pack 2. A partition 10 is integrally connected between the inner walls of the two sides of the rear housing 32 on the inner side of the opening. The partition 10 is provided with twelve battery insertion holes 11 arranged in an array. Each battery insertion hole 11 is used to insert one battery unit of the battery pack 2.

[0035] In this utility model, the rear ends of the twelve battery insert cylinders 9 abut against the front side of the partition 10, and the twelve battery insert cylinders 9 correspond one-to-one with the twelve battery sockets 11. The twelve battery insert cylinders 9 and the twelve battery sockets 11 form the battery compartment 4, and each battery insert cylinder 9 and the corresponding battery socket 11 form a compartment of the battery compartment 4.

[0036] Therefore, the battery compartment 4 can accommodate a battery pack 2 containing a maximum of twelve battery cells (twelve batteries) and a minimum of three battery cells (three batteries).

[0037] It should be noted that this utility model adopts a horizontal series connection and a vertical parallel connection, as detailed below:

[0038] Horizontal series connection: Connect the three batteries in each row (group) end to end (positive terminal → negative terminal → positive terminal) to form a four-row (group) series unit.

[0039] When connected in series, the voltage is three times that of a single cell, while the capacity remains the same as that of a single cell.

[0040] Vertical parallel connection: Connect the positive terminals of the above four rows (groups) of series units to each other and the negative terminals to each other to form a parallel structure.

[0041] After parallel connection, the total voltage remains the same as that of a single row (group) of series units, and the total capacity is four times that of a single row (group) of series units.

[0042] Therefore, the battery pack 2 includes 1-4 rows (groups) of series units, each row (group) of series units includes three batteries connected in series, which can be selected as needed during assembly.

[0043] In this utility model, the partition plate 10 is integrally connected to the connecting post 13 on the side facing the cover plate 6. Each connecting post 13 has an inwardly extending threaded blind hole 14 at its end. The cover plate 6 has a threaded through hole 15. Screws (not shown in the figure) are screwed into the corresponding threaded through hole 15 and threaded blind hole 14 from the outside to the inside in sequence, so as to fix the cover plate 6 and make it detachable.

[0044] The present invention will be further described below with reference to the accompanying drawings:

[0045] In the solar fan, the connection relationship between controller 1, battery pack 2, and external solar panel (not shown in the figure) is as follows:

[0046] 1. Physical connection method

[0047] Controller 1 connects to the solar panel, battery pack 2, and load (fan motor) via three core ports:

[0048] Solar panel input terminal: Connects to the positive and negative terminals of the solar panel to receive electrical energy generated by the generator;

[0049] Battery terminals: Connect to the positive and negative terminals of battery pack 2, responsible for charging and discharging management;

[0050] Load output terminal: Connects to the positive and negative terminals of the fan motor to provide regulated and stable electrical energy.

[0051] 2. Circuit Structure and Working Process

[0052] (1) Charging process (solar panel → battery pack)

[0053] Path: Positive terminal of solar panel → Charging module of controller 1 → Positive terminal of battery pack 2; Negative terminal of solar panel → Charging module of controller 1 → Negative terminal of battery pack 2.

[0054] The function of controller 1:

[0055] Voltage regulation: Converts the unstable voltage of the solar panel into the charging voltage required by the battery pack 2 (e.g., the standard rated voltage of lithium batteries is 3.6V / cell or 3.65V / cell, and the maximum rated voltage is 4.2V / cell).

[0056] Current limiting: Overcharging is prevented by constant current-constant voltage (CC-CV) algorithm (e.g., charging is cut off when the lithium battery voltage exceeds 4.2V).

[0057] Protection features: Integrated reverse connection protection (prevents reverse polarity connection) and over-temperature protection (reduces charging power at high temperatures).

[0058] (2) Discharge process (battery pack → load, i.e. fan motor)

[0059] Path: Positive terminal of battery pack 2 → Discharge module of controller 1 → Positive terminal of load; Negative terminal of battery pack 2 → Discharge module of controller 1 → Negative terminal of load.

[0060] Function of controller 1:

[0061] Voltage stabilization: Converts the fluctuating voltage of battery pack 2 (e.g., 3.0V-4.2V) into a stable voltage (e.g., 5V or 12V) required by the load.

[0062] Current control: The fan motor speed is controlled by PWM speed regulation technology, or constant current output is supported (such as when charging a mobile phone).

[0063] Protection functions: Integrated low-voltage protection (cuts off discharge when battery voltage is below the threshold) and short-circuit protection (immediately cuts off power when load is short-circuited).

[0064] It should be noted that the top of the front housing 31 and the rear housing 32 are connected to the connector 16 for installing the fan head 17 of the solar fan; the bottom of the front housing 31 and the rear housing 32 are provided with the insertion hole 18 for inserting the support column 12 connected to the base 19.

[0065] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0066] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A solar fan main unit with an easily selectable battery, comprising a controller, a battery pack, and a housing, characterized in that: The controller is fixed inside the housing, and the housing has a battery compartment. Each battery cell of the battery pack is inserted into all or part of the compartments of the battery compartment. The back of the housing has an opening and a cover plate that can be detachably installed.

2. The solar fan main unit head for easy battery selection according to claim 1, characterized in that: The housing includes a front housing and a rear housing that are fixedly connected to each other.

3. A solar fan main unit for easy battery selection according to claim 2, characterized in that: The inner walls of both sides of the front housing are integrally connected with long slots extending backward for mounting the two sides of the controller, and the inner wall of the rear housing is integrally connected with short slots for mounting the rear side of the controller.

4. A solar fan main unit for easy battery selection according to claim 2, characterized in that: The inner wall of the front housing is integrally connected with a plurality of battery insertion cylinders extending rearward and arranged in an array. Each battery insertion cylinder is used to insert one battery cell of the battery pack. The inner walls of the two sides of the rear housing are integrally connected with a partition plate inside the opening. The partition plate is provided with a plurality of battery insertion holes arranged in an array. Each battery insertion hole is used to insert one battery cell of the battery pack.

5. A solar fan main unit for easy battery selection according to claim 4, characterized in that: The rear ends of the plurality of battery insert cylinders abut against the front side of the partition, and the plurality of battery insert cylinders correspond one-to-one with the plurality of battery sockets. The plurality of battery insert cylinders and the plurality of battery sockets constitute the battery compartment, and each battery insert cylinder and its corresponding battery socket constitute a compartment of the battery compartment.

6. A solar fan main unit with an easily selectable battery as described in claim 4, characterized in that: The partition plate is integrally connected to a connecting post on the side facing the cover plate. Each connecting post has an inwardly extending threaded blind hole at its end. The cover plate has a threaded through hole, and screws are screwed into the corresponding threaded through hole and threaded blind hole from the outside to the inside.

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