Battery device and two-wheeled electric vehicle

Abstract

The battery device comprises a box body, a battery, a pressing plate and a control module, the box body is provided with a containing space, and a first terminal is arranged on the bottom wall of the containing space; the battery is contained in the containing space, and a second terminal is arranged at the bottom of the battery and used for being connected with the first terminal in an inserted mode. The pressing plate is used for pushing the battery to enable the second terminal to be plugged with the first terminal; the control module is used for determining the plugging state of the second terminal and the first terminal according to the position of the pressing plate. The battery is contained in the containing space, and the pressing plate pushes the battery so that the second terminal of the battery can be connected with the first terminal at the bottom of the box body in an inserted mode. The control module is used for determining the plugging state of the second terminal and the first terminal according to the position of the pressing plate, it can be ensured that the vehicle can be started only after the first terminal of the battery device and the second terminal of the box body are in good contact, and normal and safe running of the two-wheeled electric vehicle is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a battery device and a two-wheeled electric vehicle. Background Art

[0002] At present, there are two main ways to connect the battery and the whole vehicle of a two-wheeled electric vehicle: hard connection and soft connection. Among them, soft connection is more widely used, while hard connection is mainly used in battery replacement scenarios.

[0003] As a common method of battery replacement, hard connection needs to ensure the reliability and stability of its connection. Depending on the usage scenario, unstable contact between the battery and the connection terminal at the bottom of the box will lead to problems such as poor contact. If not discovered in time, it will affect the normal driving of the vehicle and also pose a safety hazard. Utility Model Content

[0004] The utility model aims to provide a battery device and a two-wheeled electric vehicle, which can ensure that the two-wheeled electric vehicle can be started only when the connection terminals of the battery device are in good contact, so that the two-wheeled electric vehicle can run normally and safely.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In a first aspect, the utility model provides a battery device, comprising a box, a battery, a pressure plate and a control module, wherein the box has a receiving space, and a first terminal is provided on the bottom wall of the receiving space; the battery is received in the receiving space, and a second terminal is provided on the bottom of the battery, and the second terminal is used to be plugged with the first terminal; the pressure plate is used to push the battery so that the second terminal is plugged with the first terminal; and the control module is used to determine the plugging state of the second terminal with the first terminal according to the position of the pressure plate.

[0007] In one embodiment, the control module includes a contact piece, and the contact piece is connected to the box body. When the second terminal is plugged into the first terminal, there is a gap between the contact piece and the pressure plate.

[0008] In one embodiment, the pressing plate includes a main body and a contact portion, wherein the contact portion is connected to surfaces of the main body and the contact member opposite to each other, and when the second terminal is plugged into the first terminal, the contact portion is spaced apart from the contact member.

[0009] In one embodiment, the pressure plate further includes a fixing portion, the fixing portion is connected to the main body and protrudes from a surface of the main body opposite to the contact member, the fixing portion is provided with a fixing hole, and the contact portion is cooperatively connected with the fixing hole.

[0010] In one embodiment, the control module further includes a control member, which is connected to the connecting member, and is used to control the operation of the battery device according to whether there is a gap between the contact member and the pressure plate.

[0011] In one embodiment, the battery device further includes a cover plate, which is connected to the box body and closes the receiving space.

[0012] In one embodiment, the battery device further includes a separator, which is connected to the box body to divide the space in the box body into a plurality of the receiving spaces; there are a plurality of batteries, and the plurality of batteries are respectively received in the plurality of the receiving spaces.

[0013] In one embodiment, a limiting structure is provided on an inner wall of the receiving space, the limiting structure is 180° rotationally symmetrical, and the battery is 180° rotationally symmetrical.

[0014] In one embodiment, the battery device further includes a connector, which is connected to the bottom of the box and connected to the first terminal.

[0015] In a second aspect, the utility model further provides a two-wheeled electric vehicle, comprising a frame and a battery device as described in any one of the various embodiments of the first aspect, wherein the frame has an installation space, and the battery device is accommodated in the installation space.

[0016] The battery is accommodated in the accommodating space, and the pressure plate is used to push the battery so that the second terminal of the battery is plugged into the first terminal at the bottom of the box; the control module is used to determine the plugging state of the second terminal and the first terminal according to the position of the pressure plate, so that the two-wheeled electric vehicle can be started only after the first terminal of the battery device is in good contact with the second terminal of the box, thereby ensuring the normal and safe driving of the two-wheeled electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a three-dimensional diagram of a two-wheeled electric vehicle according to an embodiment;

[0019] Figure 2 is a front view of a battery device according to an embodiment;

[0020] Figure 3is a three-dimensional diagram of a two-wheeled electric vehicle according to an embodiment;

[0021] Figure 4 is a three-dimensional diagram of a pressure plate and a contact member of an embodiment;

[0022] Figure 5 is a schematic diagram of a control process of a control module of an embodiment;

[0023] Figure 6 The diagram is a control process diagram of a control module of an embodiment.

[0024] Description of reference numerals:

[0025] 100-two-wheel electric vehicles;

[0026] 10- frame;

[0027] 20-battery device, 21-box, 211-accommodating space, 212-first terminal, 213-first compartment, 214-second compartment, 215-limiting structure, 22-battery, 23-pressing plate, 231-main body, 232-contact part, 233-fixing part, 234-first surface, 235-first plate, 236-second plate, 237-third plate, 24-contact piece, 25-cover plate, 26-partition piece, 27-connector, 28-control piece, 29-power-off switch. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0031] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0032] Please refer to Figure 1 The embodiment of the utility model provides a two-wheeled electric vehicle 100, which includes a frame 10 and a battery device 20 in the embodiment of the utility model. The frame 10 has an installation space, and the battery device 20 is accommodated in the installation space.

[0033] Optionally, the battery device 20 and the frame 10 may be connected by welding, bonding, clamping, screwing, etc., without limitation.

[0034] Optionally, the frame 10 is made of a material with high structural strength, specifically metal material, high-strength plastic, ceramic, carbon fiber, etc. Metal materials include aluminum, aluminum alloy, magnesium alloy, iron and iron alloy, etc. The frame 10 is a split structure, and multiple parts are connected and fixed by welding, bonding, clamping, screwing, etc.

[0035] The two-wheeled electric vehicle 100 in the embodiment of the utility model is provided with the battery device 20 in the embodiment of the utility model. The two-wheeled electric vehicle 100 can only travel after the battery device 20 is installed, thereby ensuring the normal and safe travel of the two-wheeled electric vehicle.

[0036] The battery device 20 in the embodiment of the present utility model is described in detail below.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model further provides a battery device 20, including a box 21, a battery 22, a pressure plate 23 and a control module.

[0038] Optionally, the box body 21 has a receiving space 211 , a first terminal 212 is provided on the bottom wall of the receiving space 211 , the battery 22 is received in the receiving space 211 , a second terminal (not shown) is provided on the bottom of the battery 22 , and the second terminal is used to be plugged into the first terminal 212 .

[0039] Optionally, the box body 21 includes a bottom plate and a plurality of side plates, the side plates are connected to the bottom plate and enclose a receiving space 211. The receiving space 211 is open at one end opposite to the bottom plate, and the battery 22 is received in the receiving space 211.

[0040] Optionally, the box body 21 is made of a material with high structural strength, specifically metal materials, high-strength plastics, ceramics, etc., and metal materials are aluminum, aluminum alloys, magnesium alloys, iron and iron alloys, etc. The box body 21 can be an integrated structure, that is, the bottom plate and the side plates are an integrated structure made by an integrated molding process, and the integrated molding process can be specifically stamping, casting, etc., without limitation.

[0041] Optionally, the box body 21 may also be a split structure, and the side panels and the bottom panel may be connected and fixed by welding, bonding, clamping, screwing, etc. The wall thickness of each part of the box body 21 may be roughly uniform, that is, the thickness of the side panels may be roughly uniform, and the thickness of the bottom panel and the side panels may also be roughly the same. The opening of the receiving space 211 is located at the top of the box body 21, and the top of the box body 21 refers to the end of the box body 21 away from the ground after the battery 22 is installed in the two-wheeled electric vehicle 100.

[0042] Optionally, the battery 22 may be a square shell battery 22, a cylindrical battery 22, etc., or other types such as a prismatic battery 22, etc. The number of batteries 22 may be one or more, such as two, three, four, etc., without specific limitation.

[0043] Optionally, the bottom of the battery 22 refers to the end of the battery 22 close to the ground after the battery 22 is installed in the two-wheeled electric vehicle 100.

[0044] Optionally, the first terminal 212 and the second terminal are both commonly used connection terminals in the art, and the first terminal 212 and the second terminal can be connected and fixed by means of snap connection or the like.

[0045] Optionally, the pressing plate 23 is used to push the battery 22 so that the second terminal is plugged into the first terminal 212 ; and the control module is used to determine the plugging state of the second terminal and the first terminal 212 according to the position of the pressing plate 23 .

[0046] Optionally, the pressing plate 23 may be rectangular, circular, polygonal, etc. The material of the pressing plate 23 is similar to the material of the aforementioned box body 21 and can be used for reference without specific limitation.

[0047] Optionally, when installing the pressure plate 23, the pressure plate 23 moves toward the battery 22 and pushes the battery 22 to enable the second terminal to be plugged into the first terminal 212. When the first terminal 212 and the second terminal are plugged into place, the pressure plate 23 reaches a specified position, and the control module confirms that the plugging of the second terminal and the first terminal 212 is completed, thereby executing relevant instructions to ensure the normal and safe driving of the two-wheeled electric vehicle 100.

[0048] The battery device 20 in the embodiment of the utility model is configured to accommodate the battery 22 in the accommodating space 211, and the pressing plate 23 is used to push the battery 22 so that the second terminal of the battery 22 is plugged into the first terminal 212 at the bottom of the box body 21; the control module is used to determine the plugging state of the second terminal and the first terminal 212 according to the position of the pressing plate 23, which can ensure that the two-wheeled electric vehicle can be started only after the first terminal 212 and the second terminal of the battery device 20 are in good contact, thereby ensuring the normal and safe driving of the two-wheeled electric vehicle 100.

[0049] Optionally, the control module includes a contact member 24 , which is connected to the box body 21 , and when the second terminal is plugged into the first terminal 212 , there is a gap between the contact member 24 and the pressing plate 23 .

[0050] Optionally, the contact member 24 can be connected to the outside of the box body 21 or to the inner wall of the box body 21. The contact member 24 and the box body 21 can be connected by welding, bonding, clamping, screwing, etc., without specific limitation.

[0051] Optionally, when the second terminal of the battery 22 is not plugged into the first terminal 212 , the contact 24 contacts the pressing plate 23 , and when the second terminal is plugged into the first terminal 212 , there is a gap between the contact 24 and the pressing plate 23 .

[0052] By setting the control module to include a contact 24, the contact 24 is connected to the box body 21. When the second terminal is plugged into the first terminal 212, there is a gap between the contact 24 and the pressure plate 23. At this time, the control module can confirm that the plugging of the second terminal and the first terminal 212 is completed, and the control module executes the start command.

[0053] Optionally, the pressing plate 23 includes a main body 231 and a contact portion 232 . The contact portion 232 is connected to a surface of the main body 231 opposite to the contact member 24 . When the second terminal is plugged into the first terminal 212 , the contact portion 232 is spaced apart from the contact member 24 .

[0054] Optionally, the main body 231 and the contact portion 232 may be an integrated structure, that is, the main body 231 and the contact portion 232 are an integrated structure made by an integrated molding process, and the integrated molding process may be stamping, casting, etc., without limitation. The main body 231 and the contact portion 232 may also be a split structure, and the side plate and the bottom plate may be connected and fixed by welding, bonding, clamping, screwing, etc.

[0055] Optionally, the shape of the main body 231 is not limited. For example, as shown in the figure, the main body 231 is roughly in the shape of a rectangular plate, and the four sides and the middle of the main body 231 are hollowed out to facilitate installation.

[0056] Optionally, the main body 231 includes a first surface 234 and a second surface facing each other, the second surface faces the battery 22 , and the contact portion 232 is connected to the second surface.

[0057] Optionally, as shown in the figure, the pressure plate 23 further includes a fixing portion 233, which is connected to the main body 231 and protrudes from a surface of the main body 231 opposite to the contact member 24, and the fixing portion 233 is provided with a fixing hole, and the contact member 24 is matched and connected with the fixing hole.

[0058] Optionally, the fixing portion 233 includes a first plate 235 , a second plate 236 and a third plate 237 which are connected in sequence, and the first plate 235 and the third plate 237 are arranged at intervals and are respectively connected to two opposite ends of the second plate 236 .

[0059] Optionally, the first plate 235 and the third plate 237 are connected to the first surface 234 and are both perpendicular to the first surface 234 , and the second plate 236 is arranged parallel to the first surface 234 .

[0060] Optionally, the first plate 235, the second plate 236 and the third plate 237 are an integral structure manufactured by an integral molding process, and the integral molding process may specifically be stamping, casting, etc.; or, the first plate 235, the second plate 236 and the third plate 237 may be connected and fixed by welding, bonding, clamping, screwing, etc., without limitation.

[0061] Optionally, the second plate 236 is provided with a fixing hole, and the shape of the fixing hole can be circular, square, polygonal, etc., as long as it corresponds to the contact member 24, without specific limitation.

[0062] The pressure plate 23 also includes a fixing portion 233, which is connected to the main body 231 and protrudes from the surface of the main body 231 opposite to the contact piece 24. The fixing portion 233 is provided with a fixing hole, and the contact piece 24 is matched and connected with the fixing hole to fix the position of the contact piece 24, so that the contact piece 24 can determine the plug-in state of the second terminal and the first terminal 212 according to the position of the pressure plate 23.

[0063] Optionally, the contact member 24 is inserted into the fixing hole and connected to the contact portion 232 before the first terminal 212 and the second terminal are plugged into place.

[0064] Optionally, the contact portion 232 is provided with a contact point, and when the first terminal 212 and the second terminal are not plugged in place, the contact member 24 is connected to the contact point. When the first terminal 212 and the second terminal are plugged in place, the contact point is compressed and disconnected from the contact member 24, and the signal can be recognized by the control module, indicating that the first terminal 212 and the second terminal are plugged in place at this time, and the two-wheeled electric vehicle 100 can be started.

[0065] By setting the pressure plate 23 to include a main body 231 and a contact portion 232, the contact portion 232 is connected to the main body 231 and to the surface of the main body 231 opposite to the contact piece 24. When the second terminal is plugged into the first terminal 212, the contact portion 232 and the contact piece 24 are spaced apart. The plug-in status of the first terminal 212 and the second terminal can be determined, and the two-wheeled electric vehicle 100 can be started after the battery 22 and the connecting terminal are stably connected. The service life of the connecting terminal can be extended, and the normal and safe driving of the two-wheeled electric vehicle 100 can be ensured.

[0066] Optionally, the control module further includes a control member 28 , which is connected to the contact member 24 , and is configured to be started when there is a gap between the contact member 24 and the pressure plate 23 .

[0067] Optionally, the control member 28 is electrically connected to the contact member 24 .

[0068] Optionally, control the process as Figure 5 and Figure 6 The contact piece 24 and the contact portion 232 together form a power-off switch 29 .

[0069] When the battery 22 is accommodated in the box 21 and is not pressed into the pressing plate 23, the contact 24 is in contact with the contact point of the contact portion 232 of the cover 25, the power-off switch 29 is in a closed state, and the GND signal is input to the control element 28. The control element 28 detects the signal, determines that the battery 22 is not fixed, and executes the shutdown command, such as Figure 5 After the pressing plate 23 is pressed in, the contact point connection between the contact member 24 and the contact portion 232 is disconnected, the power-off switch 29 is in the off state, and the GND signal is input to the control member 28. The control member 28 detects the signal, determines that the battery 22 has been fixed, and executes the start command, such as Figure 6 shown.

[0070] In the above process, the two logical states of whether the contact member 24 and the contact point are in contact are detected by the control member 28, which can determine whether the pressure plate 23 is installed, and at the same time confirm whether the second terminal at the bottom of the battery 22 and the first terminal 212 are well connected. The control member 28 thus executes relevant instructions to ensure the normal and safe driving of the entire vehicle.

[0071] At the same time, after the pressing plate 23 is pressed in, the second terminal at the bottom of the battery 22 and the first terminal 212 of the box 21 can be ensured to be in good contact, and electrical corrosion and power failure caused by poor contact will not occur. The reliability of the contact of the bottom connection terminal and the stability of the high current discharge of the battery 22 are ensured, and the service life of the connection terminal is improved.

[0072] Optional, such as Figure 1 As shown, the battery device 20 further includes a cover plate 25 , which is connected to the box body 21 and closes the receiving space 211 .

[0073] Optionally, the shape of the cover plate 25 can be rectangular, circular, etc., as long as it corresponds to the shape of the opening of the receiving cavity, and there is no specific limitation.

[0074] Optionally, the cover plate 25 and the box body 21 may be connected by welding, bonding, clamping, screwing, etc., without specific limitation.

[0075] Optionally, after the pressing plate 23 pushes the second terminal and the first terminal 212 to be plugged into place, the cover plate 25 is manually or mechanically closed to close the receiving space 211, which can further fix the connection terminals of the battery 22 to be stably connected and prevent external environmental factors from affecting the operation of the battery 22.

[0076] By configuring the battery device 20 to also include a cover plate 25 , the cover plate 25 is connected to the box body 21 and closes the receiving space 211 , so as to prevent external impurities from entering the receiving space 211 of the box body 21 and affecting the operation of the battery 22 , thereby extending the service life of the battery 22 .

[0077] Optionally, the second terminal is provided with a plurality of interfaces, which are arranged 180° rotationally symmetrically on the second terminal. The interfaces are used to realize electrical connection with the first terminal 212. A connector is also provided in the interface, which is usually made of metal, such as gold, silver, copper, etc., and the shape and structure are determined according to specific needs.

[0078] Optionally, the specific type of the interface may be a 110 female terminal (used to connect other terminals and transmit current), a 187 female terminal (with a plug-in function), a 205 female terminal (with multiple jacks, which can be used to insert multiple wires and transmit current), a 250 female terminal (with larger jacks and more plugs, which can be used to insert more wires and transmit a greater current), etc., without restriction.

[0079] Optionally, the second terminal further includes an insulator, a housing and accessories. The insulator is a non-metallic part in the second terminal, which is used to separate the connectors to prevent short circuits between the connectors. The insulator is usually made of materials such as plastic or ceramic. The housing is used to protect and fix the internal connectors and insulators. The housing is usually made of metal or plastic. The accessories are auxiliary parts in the second terminal, which can specifically be wire clamps, positioning pins, etc., which are used to improve the installation and use performance of the second terminal.

[0080] Optionally, the multiple interfaces of the second terminal are arranged 180° rotationally symmetrically, so that the second terminal and the first terminal 212 can be plugged into each other no matter from which direction the first terminal 212 of the battery 22 is inserted into the receiving space 211, thereby realizing forward and reverse insertion of the battery 22 and facilitating the locking operation of the battery 22.

[0081] Optionally, the first terminal 212 is rotationally symmetric by 180° relative to the center.

[0082] Specifically, the pin of the first terminal 212 can also be a plug-in terminal (characterized by easy installation, reliable contact, and easy maintenance, usually using screws to fix the terminal, which is convenient for disassembly and replacement of wires), 110 male terminal, 187 male terminal, 205 male terminal, 250 male terminal, straight male terminal, etc., without restriction.

[0083] Optionally, multiple pins are arranged 180° rotationally symmetrically along the center of the first terminal 212, and are arranged corresponding to the interface of the second terminal, so that the first terminal 212 and the second terminal can be plugged in regardless of the direction in which the battery 22 is inserted into the receiving space 211, thereby realizing the forward and reverse insertion of the battery 22, making the locking operation of the battery 22 convenient.

[0084] Optionally, the battery device 20 further includes a separator 26 , which is connected to the box body 21 and divides the receiving space 211 into a plurality of receiving spaces 211 .

[0085] Optional, such as Figure 3 As shown, the partition 26 is connected to the side plate of the box body 21. The partition 26 and the side plate can be an integrated structure or a split structure, and the partition 26 and the side plate are connected and fixed by welding, bonding, clamping, screwing, etc., without specific limitation.

[0086] Optionally, the number of partitions 26 is not limited, and multiple partitions 26 are respectively connected to two opposite side panels of the box body 21 and have intervals, and divide the receiving space 211 into multiple receiving spaces 211, such as two, three, four, etc.

[0087] For example, Figure 3 As shown, there are two partitions 26, which are arranged opposite to each other and respectively connected to two opposite side panels of the box body 21. The two partitions 26 divide the receiving space 211 into a first compartment 213 and a second compartment 214.

[0088] Optionally, the size of the first bin 213 may be substantially the same as the size of the second bin 214 .

[0089] By configuring the battery device 20 to also include a partition 26, the partition 26 is connected to the box body 21 and divides the accommodating space 211 into a first compartment 213 and a second compartment 214. When there are multiple batteries 22, the position of the batteries 22 can be better fixed to prevent the battery 22 from moving and causing an unstable connection between the second terminal and the first terminal 212.

[0090] Optionally, there are two batteries 22, which are respectively housed in the first compartment 213 and the second compartment 214; there are two first terminals 212, which are respectively disposed on the bottom walls of the first compartment 213 and the second compartment 214, and are correspondingly plugged into the second terminals of the batteries 22.

[0091] By providing multiple batteries 22, multiple second terminals are connected to the bottom of the box body 21, and the multiple second terminals are correspondingly connected to the multiple first terminals 212, the capacity of the battery 22 of the two-wheeled electric vehicle 100 can be increased, and the endurance of the two-wheeled electric vehicle 100 can be improved.

[0092] Optionally, a limiting structure 215 is provided on the inner wall of the receiving space 211 , and the limiting structure 215 is 180° rotationally symmetrical, and the battery 22 is 180° rotationally symmetrical.

[0093] Optionally, there may be one or more limiting structures 215 , and the limiting structures 215 are connected and fixed to the side panels of the box body 21 by welding, bonding, snapping, etc., and the shape and size are not specifically limited.

[0094] By providing a limiting structure 215 on the inner wall of the accommodating space 211, the limiting structure 215 is 180° rotationally symmetrical, and the battery 22 is 180° rotationally symmetrical, so the position of the battery 22 can be better fixed. At the same time, since the battery 22 and the limiting structure 215 are both 180° rotationally symmetrical, the battery 22 can be inserted forward and backward, making the locking operation of the battery 22 convenient.

[0095] Optionally, the battery device 20 further includes a connector 27 , which is connected to the bottom of the box body 21 and connected to the first terminal 212 .

[0096] Optional, such as Figure 2 As shown, the connector 27 is a connecting plug commonly used in the art, etc. The connector 27 is connected to the first terminal 212 and is located on the bottom plate of the box body 21 on the side opposite to the battery 22, so as to facilitate electrical connection between the connector 27 and the frame 10.

[0097] Optionally, the number of the connectors 27 is not specifically limited, and it only needs to correspond to the first terminals 212. For example, there are two first terminals 212, and two connectors 27, and the two connectors 27 are connected to the two first terminals 212 respectively.

[0098] Optionally, the connector 27 is also connected to a cable, and the cable is used to electrically connect the connector 27 to the frame 10 .

[0099] By setting the battery device 20 to also include a connector 27, the connector 27 is connected to the bottom of the box body 21 and connected to the first terminal 212, the battery device 20 is electrically connected to the frame 10 through the connector 27, and the two-wheeled electric vehicle 100 is powered. After the pressure plate 23 is pressed in, the good contact of the connector 27 can be guaranteed, and electrical corrosion and power failure caused by poor contact will not occur. The reliability of the contact of the connector 27 and the stability of the high current discharge of the battery 22 are guaranteed, the service life of the connector 27 is improved, and the normal and safe driving of the two-wheeled electric vehicle 100 is also guaranteed.

[0100] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0101] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A battery device, characterized in that: include: The box body has a receiving space, and the bottom wall of the receiving space is provided with a first terminal; A battery is accommodated in the accommodation space, and a second terminal is provided at the bottom of the battery, and the second terminal is used to be plugged with the first terminal; A pressing plate, used for pushing the battery so that the second terminal is plugged into the first terminal; A control module is used to determine the plugging state of the second terminal and the first terminal according to the position of the pressure plate.

2. The battery device according to claim 1, characterized in that: The control module includes a contact piece, and the contact piece is connected to the box body. When the second terminal is plugged into the first terminal, there is a gap between the contact piece and the pressure plate.

3. The battery device according to claim 2, characterized in that: The pressing plate includes a main body and a contact portion, wherein the contact portion is connected to a surface of the main body opposite to the contact piece, and when the second terminal is plugged into the first terminal, there is a gap between the contact portion and the contact piece.

4. The battery device according to claim 3, characterized in that: The pressing plate further comprises a fixing portion, which is connected to the main body and protrudes from a surface of the main body opposite to the contact member. The fixing portion is provided with a fixing hole, and the contact member is matched and connected with the fixing hole.

5. The battery device according to claim 2, characterized in that: The control module further includes a control member connected to the contact member, and the control member is used to control the operation of the battery device according to whether there is a gap between the contact member and the pressure plate.

6. The battery device according to claim 1, characterized in that: The battery device also includes a cover plate, which is connected to the box body and closes the receiving space.

7. The battery device according to claim 1, characterized in that: The battery device further comprises a separator, which is connected to the box body to separate the space inside the box body into a plurality of the receiving spaces; there are a plurality of batteries, and the plurality of batteries are respectively received in the plurality of the receiving spaces.

8. The battery device according to claim 1, characterized in that: The inner wall of the receiving space is provided with a limiting structure, the limiting structure is 180° rotationally symmetrical, and the battery is 180° rotationally symmetrical.

9. The battery device according to claim 1, characterized in that: The battery device further includes a connector connected to the bottom of the box and connected to the first terminal.

10. A two-wheeled electric vehicle, characterized in that: The vehicle comprises a frame and a battery device as claimed in any one of claims 1 to 9, wherein the frame has an installation space, and the battery device is accommodated in the installation space.

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