Universal battery module, electric vehicle and battery replacing system thereof

Abstract

The invention relates to the technical field of batteries, in particular to a universal battery module, an electric vehicle and a battery replacement 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, the installation difficulty is reduced, and the connection effect is better.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a universal battery module, an electric vehicle and a battery replacement system thereof. Background Art

[0002] At present, with the gradual maturity of battery technology and the continuous improvement of environmental protection requirements of government departments, the market share of new energy vehicles is increasing. In addition to new energy vehicles, there are also two-wheeled electric vehicles, three-wheeled electric vehicles, and elderly scooters that need to be charged, but the charging stations for new energy vehicles on the market can only charge new energy vehicles, and the charging time is relatively long. In addition, there are special brands of new energy vehicles that have specific battery swap stations for their own exclusive brands at the battery swap stations, and the brands of this battery swap method only establish battery swap stations in some specific cities, resulting in certain limitations in the battery swap of new energy vehicles. In addition, two-wheeled and three-wheeled electric vehicles or elderly scooters for home use require different charging base stations for charging or battery swap base stations. That is, the charging time of existing new energy vehicles and electric vehicles is long, which cannot meet market demand, and the batteries cannot be swapped between new energy vehicles of different brands and between new energy vehicles and electric vehicles, and the battery has poor versatility, which leads to a narrow range of battery applications.

[0003] Moreover, the battery replacement of existing new energy vehicles or electric vehicles generally adopts a plug-in connection method with wire-to-wire contact. However, this method requires finding the correct connection wire, and non-professionals cannot install it. At the same time, the installation efficiency is low, and the wire connection method is very prone to short circuit when it rains or the battery pack is flooded, which leads to poor connection effect and cannot be better applied to the market. Summary of the invention

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a universal battery module, an electric vehicle and a battery replacement system thereof, which solve the technical problems that the existing new energy vehicles and electric vehicles have a long charging time and cannot meet the market demand, and the batteries cannot be replaced between new energy vehicles of different brands and between new energy vehicles and electric vehicles, the battery has poor versatility, and the wire-to-wire connection requires finding the correct connecting wire, which makes it impossible for non-professionals to install it, and the installation efficiency is low.

[0005] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0006] On the one hand, an embodiment of the present invention provides a universal battery module, including a battery cell body, a battery cell housing and a male coupler;

[0007] The top of the battery cell shell is open, the battery cell body is located in the inner cavity of the battery cell shell and an end cover is sealed on the top of the battery cell shell;

[0008] The male coupler is located at the bottom of the battery cell housing, and the male coupler can be coupled with the female coupler on the battery compartment, and the power is transmitted 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 comprises a total negative electrode of a trigger signal, a positive electrode ring of a trigger signal, a positive electrode ring of a power supply, and a negative electrode ring of a power supply, which are coaxial and arranged in sequence from the inside to the outside, and adjacent ring structures are arranged at intervals by an annular insulating groove, and the total negative electrode of the trigger signal, the positive electrode ring of the trigger signal, the positive electrode ring of the power supply, and the negative electrode ring of the power supply are all arranged to protrude outward to form a protruding arc surface;

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

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

[0013] Optionally, a power indicator is provided on the top of the end cover; a trough is provided on the top of the end cover, and a handle is provided in the trough.

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

[0015] One side of the battery storage tray is provided with an entrance and exit for passing the universal battery module;

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

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

[0018] A plurality of female couplers are arranged at intervals along the longitudinal direction on a side wall opposite to the first side plate and the third side plate, and each of the female couplers corresponds to a male coupler of the universal battery module.

[0019] Optionally, a sliding groove is opened on the bottom wall along its transverse direction, and the sliding groove corresponds to the female coupler one by one, and a movable groove connected to the sliding groove is opened along the depth direction of the bottom wall, a spring is arranged in the movable groove, and the free end of the spring is connected to an "L"-shaped baffle, the vertical portion of the "L"-shaped baffle can extend upward from the sliding groove, and the female coupler is arranged on the vertical portion.

[0020] In a third aspect, a battery replacement system includes a plurality of the universal battery modules and a battery compartment for accommodating the plurality of the universal battery modules;

[0021] An inlet and outlet of the universal battery module are arranged on one side of the battery compartment, and a female coupler coupled to a male coupler of the universal battery module is also arranged in the inner cavity of the battery compartment to realize charging and discharging of the universal battery module.

[0022] The beneficial effects of the present invention are: a battery exchange system of the present invention, by miniaturizing and unitizing universal battery modules, can optionally install different numbers of battery modules according to different electric vehicles, thereby making the battery interchangeable between new energy vehicles of various brands and between new energy vehicles and two-wheeled electric vehicles or elderly scooters. The battery has good versatility, thereby making the battery applicable in a wide range of fields.

[0023] Moreover, by setting the male coupler and the female coupler of the battery compartment to couple with each other to transmit electricity, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the universal battery module of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure when viewed from the bottom;

[0026] Figure 3 A schematic diagram of the structure of an electric vehicle according to an embodiment;

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

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

[0029] Figure 6 The figure is a schematic diagram of the structure of a battery replacement system according to an embodiment.

[0030] Description of Reference Numerals

[0031] 100: female coupler;

[0032] 200: Universal battery module;

[0033] 1: Battery body;

[0034] 2: battery shell; 21: end cover; 22: power display; 23: pin interface; 24: tank; 25: handheld;

[0035] 3: Male coupler; 31: Total negative pole of trigger signal; 32: Positive electrode ring of trigger signal; 321: 5V+ signal trigger ring; 322: 12V+ signal trigger ring; 33: Positive pole ring of power supply; 34: Negative pole ring of power supply; 35: Base support;

[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 slot; 308: moving slot; 309: spring; 310: "L" shaped baffle; 3101: vertical portion;

[0037] 400: Battery compartment. DETAILED DESCRIPTION

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific implementation methods. Figure 1 When introducing the battery swap system, Figure 3 It should also be noted that in Figure 3 In the embodiment shown in Figure 1 When the universal battery module 200 is placed into the battery compartment 400, Figure 1 The universal battery modules 200 in the first side plate 302 are laid down so that the bottoms of the five universal battery modules 200 on the front side face forward, so that 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. So that the bottoms of the five universal battery modules 200 on the rear side face backward.

[0039] Embodiment 1:

[0040] See attached Figures 1 to 5 As shown, a battery replacement system, see Figure 3-Figure 5, including a plurality of universal battery modules 200 and a battery compartment 400 for accommodating the plurality of universal battery modules 200. An inlet and outlet of the universal battery module 200 are arranged on one side of the battery compartment 400, and a female coupler 100 coupled to the male coupler 3 of the universal battery module 200 is also arranged in the inner cavity of the battery compartment 400 to realize charging and discharging of the universal battery module 200.

[0041] Embodiment 2:

[0042] See attached Figure 1-Figure 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 is provided with an entrance and exit for passing the universal battery module 200. The side wall of the battery storage tray 300 is provided with a female coupler 100 that is mutually coupled with the male coupler 3 of the universal battery module 200 to realize power supply to the electric vehicle.

[0043] Further, 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 in sequence along the edges of the bottom wall 301, and also includes a top plate 306 parallel to the bottom wall 301 and located on the top of the first side plate 302, the second side plate 303, the third side plate 304 and the fourth side plate 305. A plurality of female couplers 100 are arranged at intervals along the longitudinal direction on a side wall opposite to the first side plate 302 and the third side plate 304, and each female coupler 100 corresponds to the male coupler 3 of the universal battery module 200. It should be noted that the present battery exchange system can be applied to various fields such as automobiles, agricultural machinery, engineering machinery, commercial vehicles, wind power generation, solar power generation, peak and valley power storage, two-wheeled electric vehicles, three-wheeled electric vehicles, electric scooters for the elderly, and household outdoor mobile power supplies, and various types of enterprises or individuals can participate in it, so it will not be described in detail here. In this embodiment, a car is taken as an example. In addition, the battery replacement system is applied to different fields, and the corresponding power battery size is also different. The specific standards are 48-05, 60-05-10 and 72-05-10, which are used in various industries and equipment vehicles, etc., respectively. And the battery can reach a power cell of more than 400wh per kilogram. To this end, the accommodation space of the battery compartment 400 can be appropriately adjusted and changed according to different fields.

[0044] Furthermore, a slide groove 307 is provided on the bottom wall 301 along its transverse direction, and the slide groove 307 corresponds to the female coupler 100 one by one, and a movable groove 308 connected to the slide groove 307 is provided along the depth direction of the bottom wall 301, and a spring 309 is provided in the movable groove 308, and the free end of the spring 309 is connected to an "L"-shaped baffle 310, and the vertical portion 3101 of the "L"-shaped baffle 310 can extend upward from the slide groove 307, and the female coupler 100 is provided on the side of the vertical portion 3101 close to the inner cavity. By setting up this structure, the universal battery module 200 can be prevented from moving when installed in the battery compartment 400, and the situation of shaking the virtual burning electrode is solved, thereby ensuring the coupling effect.

[0045] It should also be noted that each universal battery module 200 is inserted into the battery compartment 400 through the entrance and exit of the battery compartment 400, and is locked in its respective position by a locking mechanism to realize series-parallel connection to form an integral power battery, and the size of the battery pack is determined by the size of the vehicle. Specifically, the locking mechanism adopts a structure such as a buckle to prevent the universal battery module 200 from moving horizontally or vertically. In addition, the battery compartment 400 can also be placed in a charging station as a charging pile structure. When the car needs to be charged, the driver of a family car can manually install several universal battery modules 200 into the battery compartment 400 to realize rapid power replacement. And non-professionals can directly operate it. At the same time, the universal battery module 200 is made into a small unit mode, which can be used for small cars such as two-wheeled electric vehicles and tricycles; it can also be used for large long-distance trucks, and only the number of universal battery modules 200 can be changed. It is highly versatile and can be used across multiple fields.

[0046] It should also be noted that the battery cabinet is installed on the basis of the existing charging piles of various brands. It can effectively utilize the off-peak electricity price. The battery compartment is charged during the idle period of the charging pile, and the vehicle can directly replace the fully charged battery to reduce waiting time and reduce charging costs. In addition, the slow charging charging cabinet and battery exchange cabinet: based on the existing brand battery exchange cabinet, it is improved to achieve a unified standard to apply the electrode characteristics of this product, which can realize the priority fast battery exchange of two-wheeled electric vehicles and three-wheeled electric vehicles, and can also be used for fast battery exchange for household new energy vehicles.

[0047] Finally, there is a large external power exchange station: this type of power station is suitable for wind power generation, photovoltaic power generation, and small hydropower generation off-grid systems. The power station makes full use of a variety of electricity that cannot be connected to the grid to achieve power storage and transit utilization. It should also be noted that this product is assembled into a large battery warehouse and installed in wind power generation and photovoltaic power generation to store electricity. When it is full, it is directly pulled away for replacement. The fully charged product is transported to the exchange station to quickly replace the battery for cars, electric vehicles and other equipment suitable for this product model, and then the replaced empty battery module is pulled back to the wind power solar power station for continued charging to achieve maximum utilization. It is also suitable for high-speed emergency rescue.

[0048] An electric vehicle includes a universal battery module 200. That is, related devices using the universal battery module 200 may span multiple fields.

[0049] The application fields and uses of this product are mainly reflected in:

[0050] 1. New Energy Vehicles

[0051] It can achieve the same efficiency and convenience as a fuel vehicle, and the battery can be replaced in two minutes without being affected by weather (the existing battery-swapping vehicles are severely affected by weather in cold regions, and the chassis are frozen by ice and snow and cannot be replaced).

[0052] 2. Passenger cars, commercial vehicles, two-wheeled electric vehicles, three-wheeled electric vehicles, and mobility scooters can all be replaced at the same station. When buying a vehicle, you don’t need to buy the battery.

[0053] 3. Commercial use

[0054] Large corporate electricity users can store electricity for use during off-peak hours and charge during off-peak hours. The excess can be transported to new energy power stations and sold.

[0055] 4. For rescue and delivery

[0056] Used for rescue of new energy vehicles when they have no electricity, for long-distance power transmission for agricultural machinery and engineering machinery, or for rescue for industrial purposes.

[0057] 5. Household and outdoor electricity

[0058] Install this product in a dedicated battery compartment to achieve home and outdoor emergency power supply through inversion.

[0059] A universal battery module 200 proposed in an embodiment of the present invention includes a battery body 1, a battery shell 2 and a male coupler 3. The top of the battery shell 2 has an opening, and the battery body 1 is located in the inner cavity of the battery shell 2 and is sealed with an end cover 21 at the top of the battery shell 2. The male coupler 3 is located at the bottom of the battery shell 2, and the male coupler 3 can be coupled with the female coupler 100 on the battery compartment 400, and the male coupler 3 and the female coupler 100 are coupled to each other to transmit electricity.

[0060] Furthermore, the male coupler 3 and the female coupler 100 adopt a contact / non-contact coupling form. The contact type can adopt a mutual inductance coupler, that is, see Figure 2 The contactless coupling form can be realized through mutual inductance. This contactless coupling method can be used for high voltage, which improves the installation performance accordingly and can set the NFC trigger signal.

[0061] In this embodiment, a universal battery module 200 is provided. By miniaturizing and unitizing the universal battery module 200, different numbers of battery modules 200 can be optionally installed according to different electric vehicles, thereby making the battery interchangeable between new energy vehicles of various brands and between new energy vehicles and two-wheeled electric vehicles or elderly scooters. The battery has good versatility, thereby making the battery applicable in a wide range of fields.

[0062] Moreover, by setting the male coupler 3 and the female coupler 100 of the battery compartment 400 to couple with each other to transmit electricity, 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 that can contact the female coupler 100, and the annular contact assembly includes a trigger signal total 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 that are coaxial and arranged in sequence from the inside to the outside, and adjacent ring structures are arranged at intervals by annular insulating grooves, and the trigger signal total negative electrode 31, the trigger signal positive electrode ring 32, the power supply positive electrode ring 33, and the power supply negative electrode ring 34 are all protruding outward to form a protruding arc surface. By setting the positive and negative electrodes of the trigger signal, the universal battery module 200 can prevent people from getting electric shocks and prevent battery leakage. Safety is further ensured, and the contact type is more energy-saving, and the space structure is compact, which greatly reduces the volume of the battery compartment 400.

[0064] Furthermore, the trigger signal total negative electrode 31, the trigger signal positive electrode ring 32, the power positive electrode ring 33 and the power negative electrode ring 34 are arc-shaped surfaces with silver plating, which prevents excessive wear and tear caused by long-term contact and further ensures the connection effect.

[0065] Furthermore, the trigger signal positive electrode ring 32 includes a coaxially arranged 5V+ signal trigger ring 321 and a 12V+ signal trigger ring 322. The 12V+ signal trigger ring 322 is for most household cars, because new energy vehicles not only have power batteries, but also a small battery, most of which are 12 volts. The 5V+ signal trigger ring 321 is because most two-wheeled and three-wheeled electric vehicles do not have much space to install small batteries, but the 5V+ signal trigger ring 321 is the power supply voltage for most handheld terminal devices. In other words, this module can also be activated through a power bank, and it has strong applicability.

[0066] Furthermore, the total negative electrode 31 of the trigger signal is a columnar structure, and a base support 35 is arranged on the periphery of the total negative electrode 31 of the trigger signal, thereby saving space and reducing costs. In addition, the two positive electrode rings 32 of the trigger signal share a 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 and allows for faster installation and use.

[0068] Furthermore, a power indicator 22 and a shaped interface 23 are provided on the top of the end cover 21. A slot 24 is also provided on the top of the end cover 21, and a handheld device 25 is provided in the slot 24. The power indicator 22 can provide timely feedback on the remaining power. The shaped interface 23 is retained to facilitate the use of old equipment. The handheld device 25 is provided for easy transportation and taking.

[0069] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0072] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0073] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

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

2. The universal battery module according to claim 1, characterized in that: The male coupler (3) and the female coupler (100) adopt a contact / non-contact coupling mode.

3. The universal battery module according to claim 2, characterized in that: The male coupler (3) is an annular contact assembly capable of contacting the female coupler (100), the annular contact assembly comprising a trigger signal total 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) which are coaxially arranged in sequence from the inside to the outside, and adjacent ring structures are arranged at intervals by annular insulating grooves, and the trigger signal total negative electrode (31), the trigger signal positive electrode ring (32), the power supply positive electrode ring (33) and the power supply negative electrode ring (34) are all arranged to protrude outwards to form a protruding arc surface.

4. The universal battery module according to claim 3, characterized in that: The trigger signal positive electrode ring (32) comprises a 5V+ signal trigger ring (321) and a 12V+ signal trigger ring (322) which are coaxially arranged; The trigger signal total negative electrode (31) is a columnar structural member, and a base support member (35) is provided on the outer periphery of the trigger signal total negative electrode (31).

5. The universal battery module according to claim 3, characterized in that: The top width of the battery cell casing (2) is greater than the bottom width of the battery cell casing (2).

6. The universal battery module according to claim 1, characterized in that: A power display (22) is also provided on the top of the end cover (21); a trough (24) is also provided on the top of the end cover (21), and a handle (25) is provided in the trough (24).

7. An electric vehicle, characterized in that: Comprising at least one universal battery module (200) and a battery storage tray (300) as claimed in any one of claims 1 to 6; One side of the battery storage tray (300) is provided with an entrance and exit for passing the universal battery module (200); The side wall of the battery storage tray (300) is provided with a female coupler (100) coupled to the male coupler (3) of the universal battery module (200) to supply power to the electric vehicle.

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

9. The electric vehicle according to claim 8, characterized in that: A sliding groove (307) is provided on the bottom wall (301) along its transverse direction, and the sliding groove (307) corresponds to the female coupler (100) one by one. A movable groove (308) connected to the sliding groove (307) is provided along the depth direction of the bottom wall (301), a spring (309) is provided in the movable groove (308), and the free end of the spring (309) is connected to an "L"-shaped baffle (310), the vertical portion (3101) of the "L"-shaped baffle (310) can extend upward from the sliding groove (307), and the female coupler (100) is provided on the vertical portion (3101).

10. A battery replacement system, characterized in that: Comprising a plurality of universal battery modules (200) according to any one of claims 1 to 6, and a battery compartment (400) for accommodating a plurality of the universal battery modules (200); An inlet and outlet of the universal battery module (200) is provided on one side of the battery compartment (400), and a female coupler (100) coupled to the male coupler (3) of the universal battery module (200) is also provided in the inner cavity of the battery compartment (400) to realize charging and discharging of the universal battery module (200).

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