Universal battery module, electric vehicle and battery replacing system thereof

Abstract

The utility model relates to the technical field of batteries, in particular to a universal battery module, an electric vehicle and a battery replacing system thereof, which comprises a battery cell main body, a battery cell shell and a male coupler. An opening is formed in the top of the battery cell shell, the battery cell main body is positioned in an inner cavity of the battery cell shell, and an end cover covers the top of the battery cell shell. The male coupler is positioned at the bottom of the battery cell shell and can be coupled with the female coupler on the battery compartment. The universal battery module is miniaturized and unitized, and different numbers of battery modules can be selectively mounted according to different electric vehicles, so that the new energy vehicles of various brands as well as the new energy vehicle and a two-wheeled electric vehicle or an elderly scooter can be exchanged, the universality of the battery is good, and the universality of the battery is high. And thus, the application field range of the battery is wide. The male coupler is arranged to be coupled with the female coupler of the battery compartment for electric quantity transmission, so that the installation efficiency of the universal battery module is greatly improved, and the installation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a universal battery module, an electric vehicle and its battery swapping system. Background Technology

[0002] With the gradual maturation of battery technology and the increasing environmental protection requirements of government departments, the market share of new energy vehicles is steadily rising. Besides new energy vehicles, two-wheeled electric vehicles, three-wheeled electric vehicles, and elderly mobility scooters also require charging. However, current charging stations for new energy vehicles only support them, and charging times are lengthy. Furthermore, some brands of new energy vehicles have dedicated battery swapping stations, but these stations are only established in specific cities, limiting the availability of battery swapping for new energy vehicles. In addition, household two-wheeled and three-wheeled electric vehicles or elderly mobility scooters require different charging or battery swapping stations. In short, the long charging times of existing new energy vehicles and electric vehicles cannot meet market demand, and the lack of battery swapping capabilities between different brands and between new energy vehicles and electric vehicles results in poor battery compatibility, thus narrowing the application areas of batteries.

[0003] Moreover, existing battery swapping systems for new energy vehicles or electric vehicles generally use a wire-to-wire connection method. However, this method requires finding the correct connection wire, and it cannot be installed by non-professionals. In addition, the installation efficiency is low, and the wire connection method is prone to short circuits when it rains or the battery pack gets wet, resulting in poor connection performance and making it unsuitable for market application. Utility Model Content

[0004] In view of the above-mentioned shortcomings and deficiencies of the existing technology, this utility model provides a universal battery module, electric vehicle and its battery swapping system, which solves the technical problems of long charging time of existing new energy vehicles and electric vehicles, which cannot meet market demand, the inability to swap batteries between different brands of new energy vehicles and between new energy vehicles and electric vehicles, poor battery universality, and the need to find the correct connection wire for wire-to-wire connection, which makes it impossible for non-professionals to install and has low installation efficiency.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] On the one hand, this utility model embodiment provides a universal battery module, including a cell body, a cell shell, and a male coupler;

[0007] The top of the battery cell casing has an opening, and the battery cell body is located in the inner cavity of the battery cell casing and is sealed at the top of the battery cell casing with an end cap.

[0008] The male coupler is located at the bottom of the cell casing and can be coupled to the female coupler on the battery compartment. Power is transferred through the mutual coupling between the male coupler and the female coupler.

[0009] Optionally, the male coupler and the female coupler adopt a contact / non-contact coupling form.

[0010] Optionally, the male coupler is an annular contact assembly capable of contacting the female coupler. The annular contact assembly includes a trigger signal total negative electrode, a trigger signal positive electrode ring, a power supply positive electrode ring, and a power supply negative electrode ring arranged coaxially from the inside to the outside. Adjacent ring structures are spaced apart by annular insulating grooves, and the trigger signal total negative electrode, trigger signal positive electrode ring, power supply positive electrode ring, and power supply negative electrode ring all protrude outward to form a protruding arc-shaped surface.

[0011] The trigger signal positive electrode ring includes a 5V+ signal trigger ring and a 12V+ signal trigger ring arranged coaxially. The trigger signal negative electrode is a columnar structure, and a base support is provided on the outer periphery of the trigger signal negative electrode.

[0012] Optionally, the top width of the battery cell casing is greater than the bottom width of the battery cell casing.

[0013] Optionally, the top of the end cap is also provided with a power indicator; the top of the end cap is also provided with a groove, and a handle is provided in the groove.

[0014] On the other hand, an electric vehicle includes at least one universal battery module and a battery storage tray;

[0015] The battery storage tray has an inlet / outlet on one side for the passage of the universal battery module.

[0016] The side wall of the battery storage tray is provided with a female coupler that is coupled to the male coupler of the universal battery module to provide power to the electric vehicle.

[0017] Optionally, the battery compartment is a battery storage tray, which includes a bottom wall, a first side plate, a second side plate, a third side plate and a fourth side plate arranged sequentially along the four edges of the bottom wall, and a top plate that is parallel to the bottom wall and located on top of the first side plate, the second side plate, the third side plate and the fourth side plate;

[0018] Multiple female couplers are spaced apart along the longitudinal direction on the side wall opposite to the first side plate and the third side plate, and each female coupler corresponds to a male coupler of the general-purpose battery module.

[0019] Optionally, a sliding groove is formed on the bottom wall in the transverse direction, and the sliding groove corresponds one-to-one with the female coupler. A movable groove is formed in the depth direction of the bottom wall and communicates with the sliding groove. A spring is provided in the movable groove, and the free end of the spring is connected to an "L"-shaped baffle. The vertical part of the "L"-shaped baffle can extend upward out of the sliding groove, and the female coupler is provided on the vertical part.

[0020] Thirdly, a battery swapping system includes multiple universal battery modules and a battery compartment for housing the multiple universal battery modules.

[0021] The battery compartment has an inlet and outlet for the universal battery module on one side, and the battery compartment cavity is also provided with a female coupler that is coupled to the male coupler of the universal battery module to realize the charging and discharging of the universal battery module.

[0022] The beneficial effects of this utility model are: the battery swapping system of this utility model, by miniaturizing and modularizing the universal battery module, can selectively install different numbers of battery modules according to different electric vehicles, thereby enabling battery swapping between different brands of new energy vehicles and between new energy vehicles and two-wheeled electric vehicles or elderly mobility scooters. The battery has good versatility, thus making the battery applicable to a wide range of fields.

[0023] Moreover, by setting up a male coupler to couple with the female coupler of the battery compartment for power transmission, compared with wire connection, the installation efficiency of the universal battery module is greatly improved, the installation difficulty is reduced, the connection effect is better, and the applicability is stronger. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the universal battery module of this utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure viewed from below.

[0026] Figure 3 This is a schematic diagram of the structure of an electric vehicle according to one embodiment;

[0027] Figure 4 for Figure 3 A schematic diagram of the structure without the universal battery module installed;

[0028] Figure 5 for Figure 4A schematic diagram of the transverse cross-sectional structure;

[0029] Figure 6 This is a schematic diagram of the structure of a battery swapping system according to one embodiment.

[0030] Explanation of reference numerals in the attached figures

[0031] 100: Female coupler;

[0032] 200: Universal battery module;

[0033] 1: Battery cell body;

[0034] 2: Battery cell casing; 21: End cap; 22: Battery level indicator; 23: T-shaped connector; 24: Slot; 25: Handle;

[0035] 3: Male coupler; 31: Trigger signal negative terminal; 32: Trigger signal positive terminal ring; 321: 5V+ signal trigger ring; 322: 12V+ signal trigger ring; 33: Power supply positive terminal ring; 34: Power supply negative terminal ring; 35: Base support component;

[0036] 300: Battery storage tray; 301: Bottom wall; 302: First side plate; 303: Second side plate; 304: Third side plate; 305: Fourth side plate; 306: Top plate; 307: Slide groove; 308: Moving groove; 309: Spring; 310: "L"-shaped baffle; 3101: Vertical part;

[0037] 400: Battery compartment. Detailed Implementation

[0038] To better explain and facilitate understanding of this utility model, a detailed description of the present utility model is provided below with reference to the accompanying drawings and specific embodiments. When introducing the universal battery module 200... Figure 1 The direction in the middle is used as a reference; when introducing the battery swapping system, it is based on... Figure 3 The direction in the middle is used as a reference. It should also be noted that, in Figure 3 In the embodiment shown, Figure 1 When the universal battery module 200 is placed into the battery compartment 400, it is necessary to... Figure 1 The universal battery modules 200 are laid down so that the bottoms of the five universal battery modules 200 on the front side face forward, and the male coupler 3 of each universal battery module 200 corresponds to the female coupler 100 on the rear side wall of the first side plate 302. The bottoms of the five universal battery modules 200 on the rear side face rearward.

[0039] Example 1:

[0040] See appendix Figures 1 to 5 As shown, a battery swapping system, see details below. Figures 3-5It includes multiple universal battery modules 200 and a battery compartment 400 for housing the multiple universal battery modules 200. The battery compartment 400 has an inlet and outlet for the universal battery modules 200 on one side, and the inner cavity of the battery compartment 400 is also provided with a female coupler 100 that is coupled to the male coupler 3 of the universal battery modules 200 to realize the charging and discharging of the universal battery modules 200.

[0041] Example 2:

[0042] See appendix Figures 1-2 and Figure 6 As shown, an electric vehicle includes at least one universal battery module 200 and a battery storage tray 300. One side of the battery storage tray 300 has an entrance / exit for the universal battery module 200 to pass through. A female coupler 100, coupled to a male coupler 3 of the universal battery module 200, is provided on the side wall of the battery storage tray 300 to provide power to the electric vehicle.

[0043] Furthermore, the battery storage tray 300 includes a bottom wall 301, a first side plate 302, a second side plate 303, a third side plate 304, and a fourth side plate 305 arranged sequentially along the four edges of the bottom wall 301, and a top plate 306 parallel to the bottom wall 301 and located on top of the first side plate 302, the second side plate 303, the third side plate 304, and the fourth side plate 305. Multiple female couplers 100 are spaced apart longitudinally on the side wall opposite the first side plate 302 and the third side plate 304, each female coupler 100 corresponding to a male coupler 3 of the universal battery module 200. It should be noted that this battery swapping system can be applied to various fields such as automobiles, agricultural machinery, construction machinery, commercial vehicles, wind power generation, solar power generation, peak-valley energy storage, two-wheeled electric vehicles, three-wheeled electric vehicles, elderly mobility scooters, and household outdoor mobile power supplies. Various types of enterprises or individuals can participate in its application, which will not be elaborated upon further here. In this embodiment, a car is used as an example. Furthermore, the size of the power battery corresponding to the different applications of this battery swapping system varies. Specifically, the standards are 48-05, 60-05-10, and 72-05-10, used in various industries and equipment vehicles, etc. Moreover, the batteries can achieve a power cell capacity of over 400Wh per kilogram. Therefore, the storage space of the battery compartment 400 can be appropriately adjusted and changed according to different applications.

[0044] Furthermore, a sliding groove 307 is formed on the bottom wall 301 along its transverse direction, and the sliding groove 307 corresponds one-to-one with the female coupler 100. A movable groove 308 connected to the sliding groove 307 is formed along the depth direction of the bottom wall 301. A spring 309 is installed in the movable groove 308, and the free end of the spring 309 is connected to an "L"-shaped baffle 310. The vertical part 3101 of the "L"-shaped baffle 310 can extend upwards out of the sliding groove 307, and the female coupler 100 is provided on the side of the vertical part 3101 near the inner cavity. By setting this structure, the universal battery module 200 can be prevented from moving around in the battery compartment 400, solving the problem of loose connections and burning electrodes due to shaking, thereby ensuring the coupling effect.

[0045] It should also be noted that each universal battery module 200 enters the battery compartment 400 through its inlet / outlet and is locked in its respective position using a locking mechanism to form a series-parallel connection into a complete power battery. The size of the battery pack depends on the size of the vehicle model. Specifically, the locking mechanism uses a snap-fit ​​structure to prevent the universal battery module 200 from shifting laterally or longitudinally. Furthermore, the battery compartment 400 can also be placed in a charging station as a charging pile structure. When the vehicle needs charging, the driver can manually install several universal battery modules 200 into the battery compartment 400 for quick battery swapping. Even non-professionals can easily operate it. Additionally, the universal battery module 200 can be made into a small unit, suitable for small vehicles such as two-wheeled electric vehicles and three-wheeled vehicles; it can also be used in large long-haul trucks, simply by changing the number of universal battery modules 200. It has extremely high versatility and can be used across multiple fields.

[0046] It should also be noted that battery cabinets can be installed on top of existing charging stations from various brands. This effectively utilizes off-peak electricity pricing. By charging the battery compartment during the off-peak hours of the charging stations, vehicles can directly swap out fully charged batteries, reducing waiting time and lowering charging costs. Additionally, slow-charging battery swapping cabinets: These are improvements on existing brand battery swapping cabinets, achieving a unified standard applicable to the electrode characteristics of this product. They enable priority and rapid battery swapping for two-wheeled and three-wheeled electric vehicles, and can also provide rapid battery swapping for household new energy vehicles.

[0047] Finally, there are large-scale off-grid power swapping stations: This type of station is suitable for off-grid systems of wind power, photovoltaic power, and small-scale hydropower. The station fully utilizes various types of ungridable electricity to achieve energy storage and transfer. It should also be noted that: this product can be assembled into a large battery compartment and installed in wind power or photovoltaic power plants to store electricity. Once fully charged, it can be directly towed away for battery swapping. Fully charged batteries can be transported to the swapping station for rapid battery swapping of compatible vehicles, electric vehicles, and other equipment. The empty battery modules can then be towed back to the wind power or solar power plant for recharging, maximizing utilization. It is also suitable for high-speed emergency rescue operations.

[0048] An electric vehicle includes a universal battery module 200. Related equipment using the universal battery module 200 can span multiple fields.

[0049] The main application areas and uses of this product are as follows:

[0050] 1. New energy vehicles

[0051] It can achieve the same high efficiency and convenience as fuel vehicles, completing battery swapping in two minutes and is not affected by the weather (existing battery swapping vehicles are severely affected by cold weather, and the chassis is frozen by ice and snow, making battery swapping impossible).

[0052] 2. It will enable passenger cars, commercial vehicles, two-wheeled electric vehicles, three-wheeled electric vehicles, and elderly mobility scooters to swap batteries at the same station. At that time, buyers of these vehicles will not need to purchase batteries separately.

[0053] 3. Commercial use

[0054] Large-scale electricity consumers can store electricity for use during off-peak hours and peak hours. Any excess electricity can be transported to renewable energy power plants for sale.

[0055] 4. For rescue and delivery purposes

[0056] Used for power-off rescue of new energy vehicles, for long-distance power supply to agricultural and engineering machinery, or for industrial rescue applications.

[0057] 5. Household and outdoor electricity consumption

[0058] This product is installed in a dedicated battery compartment and uses an inverter to provide emergency power for home and outdoor use.

[0059] This utility model provides a universal battery module 200, including a cell body 1, a cell shell 2, and a male coupler 3. The top of the cell shell 2 is open, and the cell body 1 is located inside the cavity of the cell shell 2 and is covered by an end cap 21 on the top of the cell shell 2. The male coupler 3 is located at the bottom of the cell shell 2 and can be coupled to a female coupler 100 on the battery compartment 400, thereby transferring power through the mutual coupling between the male coupler 3 and the female coupler 100.

[0060] Furthermore, the male coupler 3 and the female coupler 100 employ a contact / non-contact coupling method. For contact coupling, a mutual inductance coupler can be used, see [link to relevant documentation]. Figure 2 The non-contact coupling method can be achieved through mutual inductance. This non-contact coupling method is suitable for high-voltage applications, thus improving installation feasibility, and allows for the setting of NFC trigger signals.

[0061] In this embodiment, a universal battery module 200 is miniaturized and modularized, allowing for the selective installation of different numbers of battery modules 200 on different electric vehicles. This enables battery swapping between different brands of new energy vehicles, as well as between new energy vehicles and two-wheeled electric vehicles or elderly mobility scooters, resulting in good battery versatility and a wide range of applications for the battery.

[0062] Furthermore, by setting the male coupler 3 to couple with the female coupler 100 of the battery compartment 400 to transmit power, compared with wire connection, the installation efficiency of the universal battery module 200 is greatly improved, the installation difficulty is reduced, the connection effect is better, and the applicability is stronger.

[0063] Furthermore, the male coupler 3 is an annular contact assembly capable of contacting the female coupler 100. The annular contact assembly includes a trigger signal negative electrode 31, a trigger signal positive electrode ring 32, a power supply positive electrode ring 33, and a power supply negative electrode ring 34, arranged coaxially from the inside out. Adjacent ring structures are spaced apart by annular insulating grooves, and the trigger signal negative electrode 31, trigger signal positive electrode ring 32, power supply positive electrode ring 33, and power supply negative electrode ring 34 all protrude outwards, forming a protruding arc-shaped surface. By setting the positive and negative electrodes of the trigger signal, electric shock to personnel can be prevented from the universal battery module 200, while also preventing battery leakage. This further ensures safety, and the contact-type design is more energy-efficient. Moreover, the compact spatial structure greatly reduces the volume of the battery compartment 400.

[0064] Furthermore, the trigger signal negative terminal 31, the trigger signal positive terminal ring 32, the power supply positive terminal ring 33, and the power supply negative terminal ring 34 are silver-plated arc-shaped surfaces. This prevents excessive wear from prolonged contact and further ensures the connection effect.

[0065] Furthermore, the trigger signal positive electrode ring 32 includes a 5V+ signal trigger ring 321 and a 12V+ signal trigger ring 322 coaxially arranged. The 12V+ signal trigger ring 322 is designed for most passenger cars, because new energy vehicles have not only a power battery but also a smaller battery, which is mostly 12 volts. The 5V+ signal trigger ring 321 is used because most two-wheeled and three-wheeled electric vehicles do not have enough space to install a small battery, but the 5V+ signal trigger ring 321 is the power supply voltage for the vast majority of handheld terminal devices. In other words, this module can also be activated via a power bank, making it highly adaptable.

[0066] Furthermore, the trigger signal negative electrode 31 is a columnar structure, and a base support 35 is provided on the outer periphery of the trigger signal negative electrode 31. This saves space and reduces costs. Also, the two trigger signal positive electrode rings 32 share a single power supply.

[0067] Furthermore, the top width of the cell housing 2 is greater than the bottom width of the cell housing 2. This facilitates identification of the bottom of the universal battery module 200, enabling faster installation and use.

[0068] Furthermore, the top of the end cover 21 is also equipped with a power indicator 22 and a triangular interface 23. The top of the end cover 21 also has a groove 24, within which a handle 25 is located. The power indicator 22 provides timely feedback on the remaining power. The triangular interface 23 is retained for the use of older devices. The handle 25 facilitates transport and handling.

[0069] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0071] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0072] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A universal battery module, characterized by: The battery module comprises a battery cell body (1), a battery cell shell (2) and a male coupler (3). The top of the battery cell shell (2) is open, the battery cell body (1) is located in the inner cavity of the battery cell shell (2) and is covered by an end cover (21) at the top of the battery cell shell (2). The male coupler (3) is located at the bottom of the battery cell shell (2), and the male coupler (3) can be coupled with a female coupler (100) on a battery storage tray (300) or a battery compartment (400) to realize electric conduction.

2. The universal battery module of claim 1, wherein: The male coupler (3) and the female coupler (100) adopt a contact / non-contact coupling form.

3. The universal battery module of claim 2, wherein: The male coupler (3) is a ring-shaped contact assembly capable of contacting the female coupler (100), which comprises coaxial trigger signal total negative electrodes (31), trigger signal positive electrode rings (32), power positive electrode rings (33) and power negative electrode rings (34) arranged from inside to outside, and adjacent ring structures are spaced apart by ring-shaped insulation grooves, and the trigger signal total negative electrodes (31), the trigger signal positive electrode rings (32), the power positive electrode rings (33) and the power negative electrode rings (34) are all outwardly protruding and form protruding arc surfaces.

4. The universal battery module of claim 3, wherein: The trigger signal positive electrode ring (32) comprises coaxially arranged 5V+ signal trigger rings (321) and 12V+ signal trigger rings (322). The trigger signal total negative electrode (31) is a columnar structure, and a base support (35) is arranged on the outer periphery of the trigger signal total negative electrode (31).

5. The universal battery module of claim 3, wherein: The top width of the battery cell shell (2) is greater than the bottom width of the battery cell shell (2).

6. The universal battery module of claim 1, wherein: The top of the end cover (21) is further provided with a power display (22), and the top of the end cover (21) is further provided with a groove (24) in which a handle (25) is arranged.

7. An electric vehicle, characterized by: The battery module comprises at least one universal battery module (200) and a battery storage tray (300) according to any one of claims 1-6. One side of the battery storage tray (300) is provided with an access for the universal battery module (200) to pass through. The side wall of the battery storage tray (300) is provided with a female coupler (100) for coupling with the male coupler (3) of the universal battery module (200) to realize power supply to the electric vehicle.

8. The electrically powered vehicle of claim 7, wherein: The battery storage tray (300) comprises a bottom wall (301), first, second, third and fourth side plates (302, 303, 304 and 305) arranged in sequence along the peripheral edges of the bottom wall (301), and a top plate (306) parallel to the bottom wall (301) and located at the top of the first, second, third and fourth side plates (302, 303, 304 and 305). A plurality of female couplers (100) are arranged in the longitudinal direction on the side walls opposite to the first and third side plates (302 and 304), and each female coupler (100) corresponds to the male coupler (3) of the universal battery module (200).

9. The electrically powered vehicle of claim 8, wherein: A sliding groove (307) is formed on the bottom wall (301) along the transverse direction thereof, and the sliding groove (307) corresponds to the female coupler (100) one by one, a moving groove (308) which is communicated with the sliding groove (307) is formed along the depth direction of the bottom wall (301), a spring (309) is arranged in the moving groove (308), and the free end of the spring (309) is connected with an "L"-shaped stop sheet (310), the vertical part (3101) of the "L"-shaped stop sheet (310) can extend upwardly out of the sliding groove (307), and the vertical part (3101) is provided with the female coupler (100).

10. A battery replacement system, characterized by: The battery compartment (400) comprises a plurality of universal battery modules (200) according to any one of claims 1-6. One side of the battery compartment (400) is provided with an inlet and outlet of the universal battery module (200), and the inner cavity of the battery compartment (400) is further provided with a female coupler (100) which is coupled with a male coupler (3) of the universal battery module (200) to realize charging and discharging of the universal battery module (200).

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