Integrated kettle battery and electric vehicle

Abstract

The utility model provides a kind of integrated kettle battery, be equipped in the battery support of electric vehicle, still include solar power generation module, battery box and battery base, the battery box with the battery base is sequentially arranged on the battery support from top to bottom, the solar power generation module is equipped in the battery box surface;Two-way charge-discharge circuit module and battery core group are equipped in the battery box, and the solar power generation module, external power supply and external equipment are electrically connected to the battery core group by the two-way charge-discharge circuit module;Motor controller is equipped in the battery base, and the battery core group is electrically connected to the motor controller.The utility model solves the technical problem that traditional kettle battery lacks modularization integration and lacks two-way energy interaction.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and more specifically to an integrated water bottle battery and electric bicycle. Background Technology

[0002] Current electric-assist bicycle water bottle battery systems face three structural bottlenecks: Traditional split designs result in separate installation of the battery pack, controller, and solar panel, forcing the overall size to far exceed that of a standard water bottle. In particular, external solar panels require additional brackets for fixation, further encroaching on frame space and contradicting the trend of lightweight transportation. Conventional batteries only have a one-way charging interface, making it impossible to simultaneously support external power input, solar energy collection, and power supply to external devices in the same physical structure, forcing users to carry multiple conversion devices. In addition, the split architecture relies on exposed cables to connect the battery pack and controller, which frequently cause interface loosening or cable wear under riding vibrations, resulting in the risk of power outages. Furthermore, the wiring arrangement of external solar panels increases structural complexity and introduces potential malfunctions. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide an integrated water tank battery and electric vehicle, which aims to solve the technical problems of traditional water tank batteries lacking modular integration and bidirectional energy interaction.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated water bottle battery is mounted on the battery bracket of an electric vehicle. It also includes a solar power generation module, a battery box, and a battery base. The battery box is cylindrical and is mounted on the battery bracket from top to bottom. The solar power generation module is mounted on the surface of the battery box.

[0006] The battery box contains a bidirectional charging and discharging circuit module and a battery cell assembly. The solar power generation module, external power supply, and external devices are electrically connected to the battery cell assembly through the bidirectional charging and discharging circuit module. The battery base contains a motor controller, and the battery cell assembly is electrically connected to the motor controller.

[0007] In one embodiment, the battery cell assembly includes a first input terminal, a first output terminal, a second input terminal, and a second output terminal. The bidirectional charging and discharging circuit module, the first input terminal, the first output terminal, and the motor controller are sequentially electrically connected. The bidirectional charging and discharging circuit module, the second input terminal, the first output terminal, and the motor controller are sequentially electrically connected. The second output terminal is electrically connected to the bidirectional charging and discharging circuit module.

[0008] In one embodiment, the bidirectional charging and discharging circuit module includes a third input terminal, a third output terminal, a fourth input terminal, and a fourth output terminal. The solar power generation module, the third input terminal, the third output terminal, and the first input terminal are electrically connected in sequence, and the second output terminal, the fourth input terminal, the fourth output terminal, and the external device are electrically connected in sequence.

[0009] In one embodiment, the bidirectional charging and discharging circuit module further includes a fifth input terminal and a fifth output terminal, with the external power supply, the fifth input terminal, the fifth output terminal, and the second input terminal being electrically connected in sequence.

[0010] In one embodiment, the third output terminal and the fifth output terminal are the same port, and the first input terminal and the second input terminal are the same port.

[0011] In one embodiment, the battery box is provided with a Type-C interface, which is electrically connected to the fourth output terminal and the fifth input terminal.

[0012] The bidirectional charging and discharging circuit module includes a boost circuit and a buck circuit. When an external power source or generator module is detected, the boost circuit is activated; when an external device is detected, the buck circuit is activated.

[0013] In one embodiment, the solar power generation module includes a solar panel, which is fixedly disposed on the top surface or circumferential surface of the battery box.

[0014] In one embodiment, the battery cell assembly is a lithium battery cell assembly.

[0015] An electric vehicle includes the aforementioned integrated water tank battery, and the motor controller is used to drive the hub motor of the electric vehicle.

[0016] The advantages of this utility model compared with the prior art are as follows: by using a battery bracket to support the vertical stacking layout of the battery box and the battery base, the space volume of the traditional split system is significantly reduced, forming a compact kettle-shaped integrated structure; the design of fixing the solar power generation module to the surface of the battery box ensures the photovoltaic receiving area while avoiding additional space occupation; the built-in bidirectional charging and discharging circuit module enables the battery cell to receive power input from the solar power generation module and external power supply, and to supply power to external devices through the same circuit module, thereby achieving the versatility of multi-directional energy interaction in a single physical structure; the direct electrical connection between the battery cell and the motor controller eliminates the cable redundancy of the split design.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an integrated water bottle battery provided by this utility model;

[0019] Figure 2 An exploded schematic diagram of an integrated water bottle battery provided by this utility model;

[0020] Figure 3 An exploded view of the battery box of an integrated water bottle battery provided by this utility model;

[0021] Figure 4 A schematic block diagram of an integrated water bottle battery provided by this utility model.

[0022] Figure Labels

[0023] 1. Battery bracket; 11. Hook and loop; 2. Solar power generation module; 3. Battery housing; 31. Bidirectional charging and discharging circuit module; 311. Third input terminal; 312. Third output terminal; 313. Fourth input terminal; 314. Fourth output terminal; 315. Fifth input terminal; 316. Fifth output terminal; 32. Battery cell assembly; 321. First input terminal; 322. First output terminal; 323. Second input terminal; 324. Second output terminal; 33. Sleeve; 331. Snap-fit ​​ring; 4. Battery base; 41. Motor controller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] 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 protection scope of the present utility model.

[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] See Figures 1 to 4 As shown, this utility model embodiment discloses an integrated water bottle battery, which is mounted on the battery bracket 1 of an electric vehicle. It also includes a solar power generation module 2, a battery box 3, and a battery base 4. The battery box 3 and the battery base 4 are arranged sequentially from top to bottom on the battery bracket 1, and the solar power generation module is disposed on the surface of the battery box 3.

[0030] The battery box 3 is equipped with a bidirectional charging and discharging circuit module 31 and a battery cell assembly 32. The solar power generation module 2, external power supply and external devices are electrically connected to the battery cell assembly 32 through the bidirectional charging and discharging circuit module 31. The battery base 4 is equipped with a motor controller 41, and the battery cell assembly 32 is electrically connected to the motor controller 41.

[0031] Specifically, this embodiment provides an integrated kettle-shaped battery, including a battery bracket 1 for supporting three core components: a solar power generation module 2, a battery housing 3, and a battery base 4. The battery housing 3 and battery base 4 are vertically stacked and fixed on the battery bracket 1 in a top-to-bottom order. The solar power generation module 2 is fitted and covered on the outer surface of the battery housing 3. Based on modular space compression technology, the vertical stacking layout eliminates lateral space waste, and the built-in circuitry replaces exposed cables to solve connection reliability issues. The surface-integrated solar module avoids the encroachment of additional brackets on installation space, forming a compact kettle-shaped overall structure.

[0032] The battery housing 3 has a sleeve 33, which integrates a bidirectional charging / discharging circuit module 31 and a battery cell assembly 32. The solar power generation module 2 is connected to the bidirectional charging / discharging circuit module 31 via wires. The bidirectional charging / discharging circuit module 31 is connected to both an external power supply interface and an external device interface, forming an electrical connection with the battery cell assembly 32. The battery base 4 encapsulates a motor controller 41, with the positive and negative terminals of the battery cell assembly 32 connected to the motor controller 41. During operation, the current generated by the solar module flows into the bidirectional charging / discharging circuit module 31 for processing; external power can also replenish energy to the battery cell assembly 32 through the bidirectional charging / discharging circuit module 31; the energy stored in the battery cell assembly 32 can be used to power external devices or directly supplied to the motor controller 41 through the bidirectional charging / discharging circuit module 31. It is understood that the rigid fixation of each module on the bracket forms an overall frame resistant to mechanical vibration.

[0033] Furthermore, the battery base 4 is fixedly connected to the bottom of the battery bracket 1. The battery bracket 1 extends outward and is provided with a hook collar 11 for fixing the columnar battery box 3. The bottom of the battery box 3 is connected to the battery base 4. The outer circumferential surface of the sleeve 33 of the battery box 3 is provided with a snap ring 331. The hook collar 11 is connected to the snap ring 331 to realize the connection between the battery box 3 and the battery bracket 1. The rigid fixation of the battery base 4 and the bottom of the battery bracket 1 forms a basic support platform. Thus, the adjustable connection between the annular hook collar 11 extending from the bracket and the snap ring 331 of the columnar battery box 3 achieves radial constraint, effectively preventing the battery box 3 from detaching from the battery bracket 1 or shaking, while achieving compact vertical stacking.

[0034] In one embodiment, the battery cell assembly 32 includes a first input terminal 321, a first output terminal 322, a second input terminal 323, and a second output terminal 324. The bidirectional charging and discharging circuit module 31, the first input terminal 321, the first output terminal 322, and the motor controller 41 are sequentially electrically connected. The bidirectional charging and discharging circuit module 31, the second input terminal 323, the first output terminal 322, and the motor controller 41 are sequentially electrically connected. The second output terminal 324 is electrically connected to the bidirectional charging and discharging circuit module 31.

[0035] Specifically, the battery cell assembly 32 is configured with four physical ports: the first input terminal 321 connects to the energy output terminal of the bidirectional charge / discharge circuit module 31; the first output terminal 322 connects to the power input port of the motor controller 41; the second input terminal 323 receives control signals from the circuit module; and the second output terminal 324 feeds back battery status signals to the circuit module. It is understood that these four ports are physically isolated through PCB layered traces, employing an energy path and signal path separation mechanism to avoid electromagnetic interference from high-voltage energy transmission to low-voltage control signals.

[0036] It is understood that in this embodiment, the second input terminal 323 and the second output terminal 324 are preferably designed as separate ports. However, in practical applications, the second input terminal 323 and the second output terminal 324 can be combined into a single bidirectional communication port to form a three-port system.

[0037] In one embodiment, the bidirectional charging and discharging circuit module 31 includes a third input terminal 311, a third output terminal 312, a fourth input terminal 313, and a fourth output terminal 314. The solar power generation module 2, the third input terminal 311, the third output terminal 312, and the first input terminal 321 are sequentially electrically connected, and the second output terminal 324, the fourth input terminal 313, the fourth output terminal 314, and the external device are sequentially electrically connected.

[0038] Specifically, the bidirectional charging and discharging circuit module 31 adds dedicated physical ports: the third input terminal 311 connects to the output line of the solar power generation module 2; the third output terminal 312 connects to the first input terminal 321 of the battery cell assembly 32; the fourth input terminal 313 connects to the second output terminal 324 of the battery cell assembly 32; and the fourth output terminal 314 connects to the external device interface. Functional specialization is achieved through physical channel isolation: the third input terminal 311 is dedicated to solar energy input, and the fourth output terminal 314 is dedicated to power output for external devices. Channel separation avoids path conflicts between different electrical parameters.

[0039] During operation, the solar current flows directly to the battery cell assembly 32 via the third input / output terminal. When an external device is connected, the energy from the battery cell assembly 32 is transferred to the fourth input / output terminal via the second output terminal 324, and then powered after voltage reduction conversion. The two channels can operate in parallel without affecting each other.

[0040] In one embodiment, the bidirectional charging and discharging circuit module 31 further includes a fifth input terminal 315 and a fifth output terminal 316, and the external power supply, the fifth input terminal 315, the fifth output terminal 316 and the second input terminal 323 are electrically connected in sequence.

[0041] Specifically, the bidirectional charge / discharge circuit module 31 adds a fifth input terminal 315 to connect to an external power supply, and a fifth output terminal 316 to connect to the second input terminal 323 of the battery cell assembly 32. It is understood that the bidirectional charge / discharge circuit module 31 has a built-in priority control circuit that automatically disconnects the connection to the third input port when the fifth input port is activated. By establishing an independent input channel for the external power supply, the solar energy input path is physically isolated. It is understood that in this embodiment, the fourth output port and the fifth input port are designed as separate ports; however, in practical applications, the fourth output port and the fifth input port can be combined into a single bidirectional communication port to form a three-port system, thereby simplifying the circuit structure.

[0042] In one embodiment, the third output terminal 312 and the fifth output terminal 316 are the same port, and the first input terminal 321 and the second input terminal 323 are the same port.

[0043] Specifically, in this embodiment, the third output terminal 312, used for solar charging output, and the fifth output terminal 316, used for external power output, are combined into a single physical interface. Simultaneously, the first input terminal 321, serving as the main battery charging terminal, and the second input terminal 323, connected to the external control terminal, are integrated into another shared port, achieving a binary compression of the four functional ports. This design reduces the number of physical interfaces in the circuit module, significantly reduces PCB layout space, and directly solves the space redundancy problem of multi-port systems.

[0044] In one embodiment, the battery housing 3 is provided with a Type-C interface, which is electrically connected to the fourth output terminal 314 and the fifth input terminal 315.

[0045] Specifically, the cylindrical battery housing has a Type-C interface embedded in its three side walls. It can be understood that the VBUS pin of the Type-C interface connects to the power supply line of the fourth output terminal 314, and the CC pin connects to the control line of the fifth input terminal 315. This utilizes the physical characteristics of the Type-C interface to achieve bidirectional functionality with a single interface, improving protection performance by reducing the number of openings in the housing.

[0046] In one embodiment, the bidirectional charging and discharging circuit module includes a boost circuit and a buck circuit. When an external power source or generator module is detected to be connected, the boost circuit is activated; when an external device is detected to be connected, the buck circuit is activated.

[0047] Specifically, the bidirectional charging and discharging circuit module 31 is integrated on the PCB motherboard of the cylindrical battery housing 3. Its core includes a buck-boost conversion circuit (i.e., a boost circuit and a buck circuit) and a multi-port control system (i.e., a third input terminal 311, a third output terminal 312, a fifth input terminal 315, a fifth output terminal 316, a fourth input terminal 313, and a fourth output terminal 314). The buck-boost conversion circuit can achieve... Bidirectional voltage conversion, in this embodiment, preferably controls the voltage conversion range within Understandably, the bidirectional charge / discharge circuit module integrates its functions through a shared H-bridge topology for both boost and buck converters, with voltage comparators at both input and output terminals to detect interface status. When the Type-C interface detects an input voltage from an external power source or solar panel interface, the comparator outputs a high level to the control chip, activating the boost circuit to convert the 5V input to 36V to charge the battery pack. When the Type-C interface detects a standard pull-up resistor connected to an external device, the control chip switches the drive signal phase, activating the buck circuit to reduce the battery's 36V output to 5V to power external devices.

[0048] The multi-port system includes six physical interfaces: the third input terminal 311 connects to the positive terminal of the solar panel; the third output terminal 312 connects to the first input terminal 321 of the battery cell assembly 32; the fourth input terminal 313 connects to the second output terminal 324 of the battery cell assembly 32, and the fourth output terminal 314 connects to the VBUS pin of the Type-C interface; the fifth input terminal 315 connects to the CC pin of the Type-C interface for external power supply identification, and the fifth output terminal 316 connects to the second input terminal 323 of the battery cell assembly 32. It is understood that all ports are path-isolated through independent current sensors.

[0049] Furthermore, in actual operation, this embodiment can implement the following three working modes:

[0050] 1. Solar charging mode:

[0051] The current flow path is as follows: 5V output from the solar panel, third input terminal 311, boost circuit (5V→36V), third output terminal 312, energy stored at the first input terminal 321 of the battery cell assembly 32 and transmitted to the motor controller 41 inside the battery base 4 through the first output terminal 322. At this time, the fourth and fifth ports are in a high-impedance state to avoid path interference.

[0052] 2. External power supply charging mode:

[0053] The current flow path is as follows: external 5V power supply connected to the Type-C interface, CC pin identifies the pull-down resistor, activates the fifth input terminal 315, boost circuit (5V→36V), fifth output terminal 316, and charges the second input terminal 323 of the battery cell group 32. At the same time, the priority circuit automatically disconnects the third input terminal 311.

[0054] 3. External device power supply mode:

[0055] The current flow path is as follows: external device is inserted into the Type-C interface, the CC pin identifies the pull-up resistor, the fourth output terminal 314 is activated, the second output terminal 324 of the battery cell group 32 is connected, the fourth input terminal 313 is connected, the step-down circuit (36V→5V) is connected, the fourth output terminal 314 is connected, and the VBUS pin supplies power to the outside. During this process, other ports remain silent.

[0056] In one embodiment, the solar power generation module 2 includes a solar panel, which is fixedly disposed on the top surface or circumferential surface of the battery box 3.

[0057] Specifically, the solar power generation module 2 is composed of monocrystalline silicon solar panels. In one embodiment, the solar panels are fixed to the top plane or side curved surface of the cylindrical battery box 3 using a weather-resistant adhesive. This bonding method optimizes space utilization while ensuring the photovoltaic receiving area. In another embodiment, the solar panels can also be fixed to the surface of the cylindrical battery box 3 by screwing. The specific fixing method is not specifically limited in this embodiment.

[0058] In one embodiment, the battery cell assembly 32 is a lithium battery cell assembly.

[0059] Specifically, the battery cell pack 32 uses several lithium-ion cells connected in series to form a 36V voltage platform, which is directly compatible with the specifications of mainstream electric vehicle motors, eliminating the voltage conversion stage. It is understood that the battery management system is integrated into the bidirectional charging and discharging circuit module 31, enabling the system to operate within a voltage range of 30V to 42V, continuously outputting a 15A current and monitoring the cell voltage difference in real time to perform dynamic balancing.

[0060] This embodiment also discloses an electric vehicle, including the aforementioned integrated water tank battery, wherein the motor controller 41 is used to drive the hub motor of the electric vehicle.

[0061] Specifically, the electric vehicle includes a frame and a wheel assembly system. The frame serves as the main supporting structure, while the wheel assembly system consists of a front-wheel steering assembly and a rear-wheel drive assembly. The front wheel is equipped with a mechanical / hydraulic brake, and the rear wheel integrates a hub motor connected to the rim and tire via spokes. The water tank battery directly drives the rear wheel hub motor via a motor controller 41 located at the bottom. The motor controller 41 is completely encapsulated within the cavity of the battery base 4 and is directly connected to the positive and negative output terminals of the battery cell pack 32, eliminating the need for traditional external cables. The water tank battery is secured to the standard mounting position on the frame's downtube using clamps. The built-in physical integration of the motor controller 41 eliminates energy transmission losses between the battery and the motor controller 41. When the rider pedals, the 36V DC power from the battery cell pack 32 is directly supplied to the motor controller 41, converted, and then used to drive the hub motor via an interface.

[0062] In one embodiment, the motor controller 41 is connected to the hub motor via a 9-pin interface, which includes a three-phase power line and a Hall signal line.

[0063] Specifically, the motor controller 41 is equipped with a 9-pin waterproof interface, which includes a three-phase power supply line and a Hall effect signal line. This composite interface integrates power transmission and position sensing functions. The three-phase power supply line carries a maximum drive current of 30 amps, and the Hall effect signal line suppresses electromagnetic interference. The three-phase power supply line transmits current to drive the stator windings of the hub motor to rotate, while the Hall effect signal line provides real-time feedback of the rotor position signal to the motor controller 41 for decoding. The physical connection of the nine-pin waterproof interface ensures that a single plug-in / plug-out action completes all functional integration.

[0064] In one embodiment, the motor controller 41 is further provided with a wireless communication module, which is wirelessly connected to the speedometer of the electric vehicle.

[0065] Specifically, the motor controller 41 integrates a wireless communication unit, which employs a radio frequency circuit design and is soldered onto the main board of the motor controller 41. The wireless communication unit establishes a wireless data link with the electric vehicle's speedometer. The speedometer's built-in signal processing chip parses riding parameters and exchanges commands with the communication unit via an air interface. It is understood that in this embodiment, the wireless communication module preferably uses a Bluetooth communication module. After the speedometer collects the cadence signal, it transmits it to the motor controller 41 via a Bluetooth encrypted channel. The motor controller 41 makes real-time adjustments according to the commands, and simultaneously feeds back battery status data to the speedometer display, thereby ensuring real-time data transmission.

[0066] Furthermore, it can be understood that the motor controller 41, as the core hub of energy conversion, uses its built-in DC-AC conversion module to convert the 36V DC power input from the battery cell pack 32 into three-phase AC power, driving the hub motor through precise phase control. During operation, the motor controller 41 first receives the 36V DC power output from the battery cell pack 32, then decomposes it into three AC power signals with a 120° phase difference through the built-in DC-AC conversion module. These signals are then output to the stator windings of the hub motor via a 9-core waterproof interface to drive the rotor to rotate. Finally, the frequency and amplitude of the AC power are dynamically adjusted based on real-time riding load and Hall position feedback, forming an adaptive energy closed loop that continuously matches power demand.

[0067] In summary, this embodiment of an integrated water tank battery and electric vehicle achieves a compact water tank shape by seamlessly bonding the solar power generation module 2 to the surface of the cylindrical battery box 3, combined with the vertical stacking architecture of the battery base 4 and the battery box 3. This significantly reduces the space redundancy of traditional split designs, perfectly matching the vehicle frame mounting position. A multi-directional energy hub is constructed through a built-in bidirectional charging and discharging module. Its physically isolated port design allows independent operation of solar energy, external power supply, and peripheral power supply paths, achieving a breakthrough in the versatility of efficient solar energy replenishment, power bank compatible power supply, and reverse power supply from devices. Direct connection between the battery cell group 32 and the motor controller 41 eliminates cable loss, and the integrated base encapsulation suppresses vibration failure. Combined with a composite interface and wireless communication module, this significantly improves system stability and assembly efficiency.

[0068] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An integrated water bottle battery, mounted on the battery bracket of an electric vehicle, characterized in that, It also includes a solar power generation module, a battery box and a battery base. The battery box is columnar and the battery box and the battery base are arranged sequentially from top to bottom on the battery bracket. The solar power generation module is arranged on the surface of the battery box. The battery box contains a bidirectional charging and discharging circuit module and a battery cell assembly. The solar power generation module, external power supply, and external devices are electrically connected to the battery cell assembly through the bidirectional charging and discharging circuit module. The battery base contains a motor controller, and the battery cell assembly is electrically connected to the motor controller.

2. The integrated kettle battery according to claim 1, characterized in that, The battery cell assembly includes a first input terminal, a first output terminal, a second input terminal, and a second output terminal. The bidirectional charging and discharging circuit module, the first input terminal, the first output terminal, and the motor controller are sequentially electrically connected. The bidirectional charging and discharging circuit module, the second input terminal, the first output terminal, and the motor controller are sequentially electrically connected. The second output terminal is electrically connected to the bidirectional charging and discharging circuit module.

3. The integrated kettle battery according to claim 2, characterized in that, The bidirectional charging and discharging circuit module includes a third input terminal, a third output terminal, a fourth input terminal, and a fourth output terminal. The solar power generation module, the third input terminal, the third output terminal, and the first input terminal are electrically connected in sequence. The second output terminal, the fourth input terminal, the fourth output terminal, and the external device are electrically connected in sequence.

4. The integrated kettle battery according to claim 3, characterized in that, The bidirectional charging and discharging circuit module also includes a fifth input terminal and a fifth output terminal, and the external power supply, the fifth input terminal, the fifth output terminal and the second input terminal are electrically connected in sequence.

5. The integrated kettle battery according to claim 4, characterized in that, The third output terminal and the fifth output terminal are the same port, and the first input terminal and the second input terminal are the same port.

6. The integrated kettle battery according to claim 4, characterized in that, The battery box is equipped with a Type-C interface, which is electrically connected to the fourth output terminal and the fifth input terminal.

7. The integrated water bottle battery according to claim 1, characterized in that, The bidirectional charging and discharging circuit module includes a boost circuit and a buck circuit. When an external power source or generator module is detected, the boost circuit is activated; when an external device is detected, the buck circuit is activated.

8. The integrated kettle battery according to claim 1, characterized in that, The solar power generation module includes a solar panel, which is fixedly mounted on the top or circumferential surface of the battery box.

9. The integrated kettle battery according to claim 1, characterized in that, The battery cell assembly is a lithium battery cell assembly.

10. An electric vehicle, characterized in that, Including the integrated water tank battery as described in any one of claims 1 to 9, the motor controller is used to drive the hub motor of the electric vehicle.

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