Quick plug-in unit, battery system, chassis structure and vehicle

Abstract

A quick plug-in, a battery system, a chassis structure and a vehicle, the quick plug-in comprises a socket and a plug, the socket and the plug are plugged and matched along a first direction, the socket is provided with an interface arranged along a second direction, the second direction and the first direction are arranged at an angle, the plug is connected with the battery system, and the interface is suitable for being connected with an external device. The quick plug-in unit is in plug-in fit in the first direction, the socket is provided with the interface arranged in the second direction, reversing of the interface can be achieved, the quick plug-in unit is prevented from occupying too much space in the first direction, the space utilization rate is improved, manufacturing and assembling tolerance is absorbed through the quick plug-in unit, the battery system and the frame are matched and sealed only through a regular plane, the process cost is low, and the production efficiency is improved. The sealing effect is good.

Description

Technical Field

[0001] This disclosure relates to the field of new energy vehicles, specifically to a quick-connect insert, a battery system, a chassis structure, and a vehicle. Background Technology

[0002] Cell-to-Chassis (CTC) technology highly integrates the battery system with the vehicle's chassis system. The battery system no longer needs to appear as a separate pack or module; it can be directly integrated with chassis components or frame beams. In related technologies, when the battery system is installed from top to bottom onto the chassis structure, repairing the battery system requires separating the entire chassis from the vehicle body, making repairs complex and difficult. When the battery system is installed from bottom to top onto the chassis structure, the quick-connect fittings need to be made with irregular shapes to fit and seal with the frame. This results in complex sealing surfaces, poor sealing performance, difficulty in effectively controlling tolerances, high manufacturing costs, and the large volume occupied by the irregularly shaped quick-connect fittings, leading to an inefficient internal space layout within the frame system. Utility Model Content

[0003] The purpose of this disclosure is to provide a quick-connect plug, a battery system, a chassis structure, and a vehicle to at least partially solve the problems existing in the aforementioned related technologies.

[0004] To achieve the above objectives, a first aspect of the present disclosure provides a shortcut plugin, the shortcut plugin comprising:

[0005] A socket and a plug, wherein the socket and the plug are inserted into each other along a first direction, and the socket has an interface arranged along a second direction, the second direction being at an angle to the first direction;

[0006] The plug is connected to the battery system, and the interface is adapted to connect to external devices.

[0007] Optionally, the socket includes a first fixing base adapted to fix the socket.

[0008] Optionally, the socket is provided with a spring assembly, which is connected to the first fixed base.

[0009] Optionally, the plug includes at least one locating pin adapted to connect the socket and the plug in the first direction.

[0010] Optionally, the plug includes a second fixing seat adapted to fix the plug.

[0011] Optionally, the interface includes a first high-voltage interface, a first low-voltage interface, and a second high-voltage interface, wherein the first high-voltage interface and the first low-voltage interface have the same interface direction, and the first high-voltage interface and the second high-voltage interface have opposite interface directions, and the first high-voltage interface, the first low-voltage interface, and the second high-voltage interface are respectively connected to external devices.

[0012] Optionally, the interface includes a cooling medium interface, which is adapted to connect to a cooling medium pipeline.

[0013] Optionally, a valve core is provided at the position where the socket and the plug are inserted, and the valve core is adapted to control the flow of the cooling medium.

[0014] Optionally, a pressure relief valve is provided on the side connected to the cooling medium interface.

[0015] Optionally, the external device includes electrical equipment and / or cooling equipment.

[0016] According to a second aspect of the present disclosure, a battery system is provided, including the above-described quick-connect plug, battery body, and battery energy distribution unit, wherein the battery body and the battery energy distribution unit are connected, and the quick-connect plug is connected to the battery body and / or the battery energy distribution unit.

[0017] Optionally, the battery system includes a battery cover and a tray, the battery cover and the tray being connected to the battery body and the battery energy distribution unit respectively, and the battery body and the battery energy distribution unit being disposed between the battery cover and the tray.

[0018] Optionally, the quick-connect plug includes a first quick-connect plug, the first plug of the first quick-connect plug is fixedly connected to the battery energy distribution unit through a second fixing seat, the first socket of the first quick-connect plug is fixedly connected to the battery cover through a first fixing seat, the first high-voltage interface and the first low-voltage interface of the first quick-connect plug are disposed on the first side of the battery energy distribution unit away from the battery body, and the second high-voltage interface is disposed on the second side of the battery body away from the battery energy distribution unit.

[0019] Optionally, the battery body includes multiple layers of cells stacked together, with a liquid cooling plate between two adjacent layers of cells. The liquid cooling plate has a flow channel for the cooling medium to circulate, so the quick-connect plug is connected to the liquid cooling plate through a cooling medium pipeline.

[0020] Optionally, the quick-connect plug includes a second quick-connect plug, the second plug of the second quick-connect plug is fixedly connected to the tray, the second socket of the second quick-connect plug is fixed by a first fixing seat, and the cooling medium interface of the second quick-connect plug is located on the side of the cooling medium pipeline away from the battery body.

[0021] Optionally, the battery energy distribution unit is located on one side of the battery body, and the two ends of the battery energy distribution unit are respectively provided with a first fast plug and a second fast plug, and the cooling medium pipeline is located between the battery body and the battery energy distribution unit.

[0022] Optionally, the outer periphery of the battery cell is provided with a baffle, each layer of the battery cell includes multiple battery cell groups, and a reinforcing beam is provided between two adjacent battery cell groups. The bottom surface of the reinforcing beam is fixed on the tray, and both ends of the reinforcing beam are fixedly connected to the baffle.

[0023] According to a third aspect of the present disclosure, a chassis structure is provided, comprising:

[0024] The chassis and the aforementioned battery system;

[0025] The vehicle frame has an accommodating space, and the battery system is placed within the accommodating space and fixedly connected to the vehicle frame.

[0026] Optionally, the frame includes two longitudinal beams and two cross beams, the two longitudinal beams and the two cross beams being connected in sequence to form the accommodating space, and the accommodating space having a first opening and a second opening;

[0027] The battery system tray is adapted to close a first opening of the accommodating space, and the battery cover of the battery system is adapted to close a second opening of the accommodating space.

[0028] Optionally, the crossbeam is provided with a plurality of first openings, the first openings being adapted to install the first high-voltage interface, the first low-voltage interface and the second high-voltage interface of the first fast plug-in in the battery system.

[0029] Optionally, the battery cover is fixedly connected to the first fixing seat of the first quick-connect plug.

[0030] Optionally, a second opening is provided on the crossbeam, the second opening being adapted to install the cooling medium interface of the second fast plug in the battery system.

[0031] Optionally, at least one of the crossbeams is fixedly connected to the first fixing seat of the second quick-connect plug.

[0032] Optionally, a seal is provided between the first surface of the accommodating space and the battery cover, and / or, a seal is provided between the second surface of the accommodating space and the tray.

[0033] According to a fourth aspect of the present disclosure, a vehicle is provided, including the chassis structure described above.

[0034] Through the above technical solution, the quick-connect plug is inserted and mated along a first direction, while the socket has an interface arranged along a second direction. This allows for interface reversal when the two are inserted and mated along the first direction, avoiding excessive space occupation by the quick-connect plug in the first direction. The structure is compact, improving space utilization and enhancing the user experience for drivers and passengers. Since the quick-connect plug is inserted along the first direction, the battery system can be assembled from bottom to top along this direction, reducing assembly difficulty, facilitating disassembly and assembly, and making maintenance efficient and convenient. By absorbing manufacturing and assembly tolerances through the quick-connect plug, the battery system and the vehicle frame are sealed only through a regular plane, resulting in low process costs and excellent sealing performance.

[0035] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of a chassis structure according to an exemplary embodiment.

[0038] Figure 2 This is an exploded view of a chassis structure according to an exemplary embodiment.

[0039] Figure 3 This is an assembly diagram of a socket in a quick-connect plug according to an exemplary embodiment.

[0040] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0041] Figure 5 This is a schematic diagram of the structure of a battery system according to an exemplary embodiment.

[0042] Figure 6 This is a schematic diagram of the structure of a first fast plug-in according to an exemplary embodiment.

[0043] Figure 7 This is a schematic diagram illustrating the assembly of a first socket within a receiving space according to an exemplary embodiment.

[0044] Figure 8 This is a schematic diagram of the structure of an accommodating space according to an exemplary embodiment.

[0045] Figure 9 yes Figure 8 Enlarged view of section B.

[0046] Figure 10 yes Figure 8Enlarged view of section C.

[0047] Figure 11 This is a schematic diagram of the structure of a second fast plug-in according to an exemplary embodiment.

[0048] Figure 12 This is a schematic diagram illustrating the assembly of a second socket within a receiving space according to an exemplary embodiment.

[0049] Explanation of reference numerals in the attached figures

[0050] 1-Frame, 10-Accommodation space, 11-Longitudinal beam, 12-Crossbeam, 121-First opening, 122-Second opening, 2-Battery cover, 3-Battery system, 31-Pattern, 310-Assembly positioning hole; 32-Battery body, 3210-Cell pack, 3211-Baffle, 3212-Reinforcing crossbeam, 33-Liquid cooling plate, 34-Cooling medium pipeline, 35-Seal, 4-Quick connector, 40-Interface, 4001-First high-voltage interface, 4002-First low-voltage interface Interfaces: 4003 - Second high-pressure interface; 4004 - Cooling medium interface; 401 - First quick-connect plug; 402 - Second quick-connect plug; 41 - Socket; 411 - First socket; 410 - Spring assembly; 412 - Second socket; 4121 - Positioning hole; 42 - Plug; 420 - Positioning pin; 421 - First plug; 422 - Second plug; 423 - Pressure relief valve; 511 - First mounting base; 512 - Second mounting base; 6 - Battery energy distribution unit; 7 - Reinforcing beam. Detailed Implementation

[0051] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0052] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the definition under the normal installation condition of the chassis provided in this disclosure, and can be used as... Figure 2 In the context of the explosion direction, "inside" and "outside" refer to the inner and outer contours of the relevant components relative to their own outlines. Furthermore, the qualifiers "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not indicate sequence or importance. When the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0053] A first aspect of this disclosure is to provide a quick plugin, referring to... Figures 1 to 12The quick-connect plug includes a socket 41 and a plug 42, wherein the socket 41 and the plug 42 are plugged in and engaged in a first direction. The socket 41 has an interface 40 arranged in a second direction, and the second direction is angularly positioned relative to the first direction. Here, the first direction refers to the insertion direction of the socket 41 and the plug 42, and the second direction is the arrangement direction of the interface 40. The direction of the interface 40 is different from the insertion direction, which allows for reversal of the interface 40 of the quick-connect plug 4. In the embodiments of this disclosure, the socket 41 is on top, the plug 42 is on the bottom, and the interface 40 is disposed on the socket 41. Of course, this disclosure also includes embodiments where the socket 41 is on the bottom, the plug 42 is on top, and the interface 40 is disposed on the plug 42. The plug 42 and the socket 41 are only different in name. The plug 42 is connected to the battery system 3, and the interface 40 is suitable for connecting external devices. The external devices can be external electrical devices connected to the battery system 3, or external cooling devices used to cool the cooling system. This disclosure does not limit this.

[0054] In the above embodiment, the socket 41 and plug 42 of the quick-connect plug 4 can be inserted and mated along the first direction to realize the connection and interaction between the battery system 3 and external devices. The interface 40 of the socket 41 is arranged along the second direction. When the first and second directions are set at an angle to each other, the assembly orientation of the socket 41 and plug 42 can be reversed, reducing assembly difficulty and preventing the quick-connect plug 4 from occupying too much space in the first direction, thus improving space utilization. The first direction can be the height direction of the vehicle, which involves the driver's cabin. After the quick-connect plug 4 is reversed and inserted through the interface 40 arranged along the second direction, the usable space in the first direction within the frame 1 can be compressed, increasing the usable space within the driver's cabin and reasonably improving the driving experience. Simultaneously, the reversed quick-connect plug 4 is used to absorb manufacturing or assembly tolerances, allowing the battery system 3 and frame 1 connected by the quick-connect plug 4 to be assembled within a regular plane, resulting in better sealing and reduced manufacturing costs.

[0055] In some embodiments, refer to Figures 1 to 3 The first direction can be the height direction of the vehicle ( Figure 3 The Z direction in the equation), the second direction can be the vehicle's forward and backward direction (…). Figure 3(in the X direction). Since the front and rear space of the vehicle body is relatively abundant compared to the height space, when the interface 40 is located in the X direction of the vehicle body, the insertion and removal operation space between the socket 41 and the plug 42 is increased, which facilitates the connection and assembly of the two and reduces the assembly difficulty. At the same time, when the interface 40 is arranged along the X direction, the space occupied by the quick-connect plug 4 in the Z direction within the frame 1 can be reduced, making the internal structure of the frame 1 more compact, and the size of the cockpit space in the Z direction of the vehicle body can be appropriately increased, thus reasonably improving the driving experience. It can also ensure that the connection between the battery system 3 and the frame 1 can be sealed through the regular plane mating of XY, improving the sealing effect of the accommodating space 10.

[0056] In some embodiments, refer to Figures 3 to 7 The quick-connect plug 4 may include a first quick-connect plug 401 for electrical connection to the battery system 3. The first quick-connect plug 401 may include a first socket 411 and a first plug 421. The first plug 421 may be connected to the battery body 32 in the battery system 3, and the first socket 411 may be provided with an electrical interface for connecting to electrical equipment. For example, see [reference to...] Figure 3 and Figure 7 The electrical interfaces may include a first high-voltage interface 4001, a first low-voltage interface 4002, and a second high-voltage interface 4003. The first high-voltage interface 4001 and the first low-voltage interface 4002 may have the same interface direction and may be located on the same side wall of the accommodating space 10 (described below). The first high-voltage interface 4001 and the second high-voltage interface 4003 may have opposite interface directions and may be located on opposite side walls of the accommodating space 10. The first high-voltage interface 4001, the first low-voltage interface 4002, and the second high-voltage interface 4003 are respectively connected to external devices to enable the battery system 3 to supply power to external electrical devices. In this embodiment, the first high-voltage interface 4001 and the second high-voltage interface 4003 can be used to connect high-voltage lines, and the first low-voltage interface 4002 can be used to connect low-voltage lines. They can be located on opposite side walls of the accommodating space 10 according to the actual connection requirements of the battery system 3 with other systems of the vehicle body, so that the battery system 3 has the ability to connect high-voltage lines in two opposite directions of the vehicle body, meeting the usage requirements of different vehicle models or different drive logics. Further details are omitted here. For example, there may be two first low-voltage interfaces 4002, and the two first low-voltage interfaces 4002 may be respectively provided on opposite side walls of the accommodating space 10 so that the battery system 3 can be connected to low-voltage lines in opposite directions of the vehicle body. Typically, the two first low-voltage interfaces 4002 may be arranged opposite each other along the X direction of the vehicle body to connect low-voltage lines to the front and rear of the vehicle body respectively.

[0057] In some embodiments, refer to Figure 11 and Figure 12The quick-connect plug 4 may also include a second quick-connect plug 402 for controlling the flow of cooling medium. The second quick-connect plug 402 may include a second socket 412 and a second plug 422. The second plug 422 may be connected to the liquid cooling plate 33 of the battery system 3 via the cooling medium pipeline 34. The second socket 412 may be provided with a cooling medium interface 4004 connected to an external cooling device. The cooling medium of the external cooling device may flow sequentially through the second quick-connect plug 402 and the cooling medium pipeline 34 into the liquid cooling plate 33. The circulating flow of the cooling medium within the liquid cooling plate 33 drives the heat generated by the operation of the battery system 3, ensuring the normal operation of the battery system 3. This disclosure includes embodiments with only the first quick-connect plug 401, embodiments with only the second quick-connect plug 402, and embodiments with both the first quick-connect plug 401 and the second quick-connect plug 402. The specific design can be tailored to the specific application requirements.

[0058] For example, refer to Figure 11 and Figure 12 A valve core may be provided at the insertion position of the second plug 422 and the second socket 412 to control the conduction or cutoff of the cooling medium. The cooling system of the vehicle body can be quickly connected or disconnected according to the command, and a self-sealing cooling circuit is formed in the accommodating space 10 after disconnection.

[0059] For example, refer to Figure 3 , Figure 8 and Figure 9 A pressure relief valve 423 is provided on the side connected to the cooling medium interface 4004. The battery system 3 can be housed in a closed accommodating space 10 formed by the top battery cover 2, the bottom tray 31, and the side crossbeam 12. The pressure relief valve 423 can be used to prevent excessive pressure in the closed space from damaging the battery system 3 and reducing the overall safety risk of the vehicle body. In this embodiment, the pressure relief valve 423 can be provided only on the front or rear crossbeam 12, or it can be provided on both the front and rear crossbeams 12 respectively, both of which are within the protection scope of this disclosure.

[0060] The above text has introduced the unique structures of the first fast plug-in 401 and the second fast plug-in 402. The following text will first define and introduce the common structures of the two.

[0061] In the above embodiments, such as Figure 6As shown, in the first quick-connect plug 401, the first socket 411 includes a first fixing seat 511, which is adapted to fix the first socket 411. Of course, this disclosure also includes embodiments where the first socket 411 is directly fixed. The first plug 421 includes a second fixing seat 512, which is adapted to fix the first plug 421. Of course, this disclosure also includes embodiments where the first plug 421 is directly fixed. The first socket 411 can be mounted on the battery cover 2 via the first fixing seat 511, and the first plug 421 can be mounted on the tray 31 via the second fixing seat 512. In the embodiments of this disclosure, the first plug 421 can also be directly mounted on the tray 31. The choice can be made according to the actual connection requirements and assembly position of the plug 42, ensuring a stable connection between the first plug 421 and the tray 31 without loosening. Furthermore, the first plug 421 can be connected to the first socket 411 through multiple positioning pins 420 to form a plug-in fit, which can make the first socket 411 and the first plug 421 accurately dock and form a stable connection after the fit, preventing system circuit breakage or intermittent disconnection due to unstable connection, and ensuring the safe operation of the vehicle body.

[0062] For example, refer to Figure 6 and Figure 7 A spring assembly 410 may be provided between the first socket 411 and the first fixed base 511. The spring assembly 410 may extend along the Z direction, allowing the first socket 411 to float in the Z direction under the elastic limit of the spring assembly 410 and to slide slightly on the XY plane. This is used to allow the first socket 411 to absorb some of the manufacturing tolerances of the battery system 3 and the frame 1, ensuring the assembly efficiency between the battery system 3 and the frame 1 and reducing production and debugging costs. At the same time, the stiffness of the spring assembly 410 can be adjusted according to the processing and manufacturing errors between the two and other connecting structures to absorb errors of different sizes, ensuring a tight and stable assembly between the first socket 411 and the first fixed base 511, and between the first plug 421 and the second fixed base 512.

[0063] like Figure 11As shown, in the second quick-connect plug 402, the second socket 412 includes a first fixing seat 511, which is suitable for fixing the second socket 412. Of course, this disclosure also includes embodiments where the second socket 412 is directly fixed. The second socket 412 can be installed on the side of the crossbeam 12 through the first fixing seat 511, and the second plug 422 can be directly installed on the tray 31. The first fixing seat 511 can be designed as an L-shaped structure, and the cooling medium interface 4004 can be located below the first fixing seat 511 for easy direct insertion into the second opening 122 of the crossbeam 12. Furthermore, the second plug 422 can form a plug-in engagement with the multiple positioning holes 4121 on the second socket 412 through multiple positioning pins 420, which allows for precise docking between the second socket 412 and the second plug 422, and forms a stable connection after engagement, preventing unstable connections from causing system circuit breakage or intermittent disconnection, and ensuring the safe operation of the vehicle body. Similarly, a spring assembly 410 is provided between the first fixed base 511 and the second socket 412. The spring assembly 410 can extend along the Z direction, so that the second socket 412 can float in the Z direction under the elastic limit of the spring assembly 410 and can slide slightly on the XY plane. This is used to allow the second socket 412 to absorb some of the manufacturing tolerances of the battery system 3 and the frame 1, to ensure the assembly efficiency between the battery system 3 and the frame 1, and to reduce production and debugging costs.

[0064] A second aspect of this disclosure provides a battery system, referring to... Figure 5 The battery system includes the quick-connect plug 4, battery body 32, and battery energy distribution unit (BDU) described in the embodiments above. The battery body 32 and battery energy distribution unit 6 are connected. The quick-connect plug 4 can be directly connected to the battery body 32. (Refer to...) Figure 6 It can also be connected to the battery body 32 through the battery energy distribution unit 6, or it can be connected to the battery body 32 and the battery energy distribution unit 6 respectively, so that the battery body 32 can interact with the external devices of the vehicle body through the battery energy distribution unit 6 and the quick plug 4 in sequence, which facilitates the storage, distribution and use of energy inside the battery body 32.

[0065] The battery system 3 includes a battery cover 2 and a tray 31. The battery cover 2 and the tray 31 are connected to the battery body 32 and the battery energy distribution unit 6, respectively, and the battery body 32 and the battery energy distribution unit 6 are disposed between the battery cover 2 and the tray 31. The tray 31, as a structural component supporting the battery body 32 and the battery energy distribution unit 6, enables the battery system to be installed from bottom to top, reducing assembly difficulty, facilitating disassembly and assembly, and making maintenance work efficient and convenient.

[0066] In the first quick-connect plug 401, the first plug 421 of the first quick-connect plug 401 is fixedly connected to the battery energy distribution unit 6 via the second fixing seat 512, and the first socket 411 of the first quick-connect plug 401 is fixedly connected to the battery cover plate 2 via the first fixing seat 511. The first high-voltage interface 4001 and the first low-voltage interface 4002 of the first quick-connect plug 401 are located on the first side of the battery energy distribution unit 6 away from the battery body 32, and the second high-voltage interface 4003 is located on the second side of the battery body 32 away from the battery energy distribution unit 6. In this disclosure, the first socket 411 can be used to integrate multiple electrical interfaces, and the first socket 411 can be installed on the battery cover plate 2, while the first plug 421 can be installed on the tray 31 to ensure that the position of the first socket 411 is fixed within the accommodating space 10. When the battery system 3 is installed from the bottom of the vehicle towards the interior of the vehicle, the first plug 421 on the tray 31 can stably connect with the first socket 411 to ensure a smooth and seamless connection process.

[0067] In some embodiments, refer to Figure 5 The battery body 32 may include multiple layers of cells stacked together. Multiple cells may be stacked along the Z direction. A liquid cooling plate 33 parallel to the XY plane may be provided between two adjacent layers of cells. The liquid cooling plate 33 may contact the side of each cell to provide better cooling and heat dissipation. The liquid cooling plate 33 may also play a certain role in spatial isolation and support, making the internal spatial arrangement of the battery body 32 more reasonable.

[0068] For example, refer to Figure 5 The outer periphery of the battery cell is provided with a baffle 3211 to isolate the battery cell from the external space of the battery body 32, providing a certain degree of physical protection for the battery cell. Each level of the battery cell may include multiple cell groups 3210. A reinforcing beam 3212 may be provided between two adjacent cell groups 3210. The bottom surface of the reinforcing beam 3212 may be fixed on the tray 31, and both ends of the reinforcing beam 3212 may be fixedly connected to the baffle 3211. In this embodiment, the reinforcing beam 3212 may extend along the Y direction to isolate two adjacent cell groups 3210 in the X direction, avoiding direct contact between the cells to generate unconventional heat and create certain safety hazards. Meanwhile, the bottom surface of the reinforcing beam 3212 is fixedly connected to the tray 31, and both ends are fixedly connected to the baffle 3211. This restricts the cell assembly 3210 within the space enclosed by the reinforcing beam 3212, the tray 31, and the baffle 3211, providing a stable limiting effect for the cell assembly 3210, preventing displacement of the cell assembly 3210 during vehicle operation, and protecting the safety of the battery body 32.

[0069] In the second quick-connect 402, the second plug 422 can be mounted on the tray 31 at the bottom of the accommodating space 10. The battery system 3 may be provided with a liquid cooling plate 33 for heat dissipation. The liquid cooling plate 33 may be disposed inside the battery body 32 of the battery system 3. (See reference...) Figure 11 and Figure 12 The second plug 422 is fixedly connected to the tray 31, and the second socket 412 is fixed by the first fixing seat 511. The second plug 422 can be connected to the liquid cooling plate 33 through the cooling medium pipe 34, and the second socket 412 can be provided with a cooling medium interface 4004 for liquid inlet and outlet. The cooling medium interface 4004 can be located on the side of the cooling medium pipe 34 away from the battery body 32. In this embodiment, the structure of the cooling medium pipe 34 and the design of the flow channel for the cooling medium to flow in the liquid cooling plate 33 are not limited, and any structure that can realize the circulating flow of the cooling medium is within the protection scope of this disclosure. The second quick plug 402 can be used to connect the liquid cooling plate 33 of the battery body 32 to the vehicle body cooling system. Since the two opposite edges of the liquid cooling plate 33 have cooling medium pipes 34 for providing cooling medium flow, the second plug 422 can be located on the side of the liquid cooling plate 33 with the cooling medium pipes 34 to shorten the coolant flow length and improve the heat dissipation efficiency of the liquid cooling plate 33.

[0070] In some embodiments, quick-connect plugs 4 may also be provided on both sides of the battery system 3 in the second direction within the accommodating space 10. The specific location and number of quick-connect plugs 4 can be set according to the actual number of connection lines between the battery system 3 and external devices to meet different power requirements and driving modes, which will not be elaborated here.

[0071] A third aspect of this disclosure provides a chassis structure, referring to... Figures 1 to 12 The chassis structure may include a frame 1 and the battery system 3 described above. The frame 1 has a housing space 10 for accommodating the quick-connect insert 4 and the battery system 3. The quick-connect insert 4 has all the beneficial effects of the embodiments described above, and will not be elaborated further here. The battery is integrated with the frame as a structural component, improving the frame's resistance to bending and torsion, and enhancing the overall load-bearing capacity of the vehicle. Furthermore, the battery does not require a separate casing, eliminating redundant PACK structures, which is beneficial for weight reduction and maximizing cell arrangement.

[0072] In some embodiments, refer to Figures 1 to 3 , Figure 8 and Figure 10The frame 1 may include two longitudinal beams 11 and two crossbeams 12. The two crossbeams 12 may be located between the two longitudinal beams 11 and form an accommodating space 10. The crossbeams 12 may be provided with a plurality of first openings 121. The plurality of first openings 121 are suitable for installing the first high-voltage interface 4001, the first low-voltage interface 4002 and the second high-voltage interface 4003 of the first quick plug 401 in the battery system 3, so that the battery system 3 can be interactively connected with other systems of the vehicle body through the interface 40 located on the crossbeams 12.

[0073] In some embodiments, refer to Figure 2 A second opening 122 is provided on the crossbeam 12. The second opening 122 is suitable for installing the cooling medium interface 4004 of the second quick-connect plug 402 in the battery system 3. The number and position of the openings on the crossbeam 12 correspond to the number and position of the interfaces 40 in the quick-connect plug 4, and can be designed according to needs. In this embodiment, the extension direction of the longitudinal beam 11 is the X direction, the extension direction of the crossbeam 12 is the Y direction, and the accommodating space 10 is located on the XY plane. For details, please refer to... Figure 3 The coordinate system is shown in the diagram.

[0074] For example, refer to Figures 1 to 3 and Figure 5 The accommodating space 10 has a first opening and a second opening. The battery system 3 may include a tray 31 and a battery body 32 disposed on the tray 31. The battery body 32 may be located within the accommodating space 10. The tray 31 can close the first opening of the accommodating space 10, and the battery cover 2 closes the second opening of the accommodating space 10. In this embodiment, the battery system 3 is supported by the tray 31 and can be installed into the accommodating space 10 from bottom to top. The tray 31 can detachably close the bottom opening of the accommodating space 10. When maintenance and repair of the equipment structure inside the accommodating space 10 are required, the tray 31 can be directly removed from the frame 1 to open the closed accommodating space 10. It is not necessary to disassemble the vehicle body from the frame 1 and then open the accommodating space 10 from the top of the frame 1, which effectively improves the convenience and efficiency of maintenance, simplifies the process, and reduces costs. Due to the absorption of manufacturing and assembly tolerances through the quick-connect structure, the battery system and the frame are sealed only through a regular plane where the battery cover 2 is located, resulting in a good sealing effect.

[0075] For example, refer to Figure 5The battery energy distribution unit 6 is mounted on the tray 31 and can be connected to the first plug 421 and the battery body 32 respectively. In this embodiment, since the X-direction space of the vehicle body is relatively abundant, the battery energy distribution unit 6 can be located on one side of the battery body 32 in the X-direction and can extend along the Y-direction to improve the space utilization of the battery system 3. The tray 31 is provided with assembly positioning holes 310. Assembly positioning holes 310 can be provided on both sides of the tray 31. The frame 1 is provided with positioning holes corresponding to the assembly positioning holes 310. The positioning features and positioning system of the original vehicle frame can still be used to improve the positioning accuracy during battery assembly, reduce the modification of production lines and tooling, and save costs.

[0076] In other embodiments, refer to Figure 5 The quick-connector 4, cooling medium pipe 34, and battery energy distribution unit 6 can all be located on the same side of the liquid cooling plate 33. In this embodiment, the above three components can be located on one side of the liquid cooling plate 33 in the X direction and can be arranged along the Y direction. Since the vehicle frame 1 has relatively ample space in the X direction, arranging the three components on the same side of the vehicle frame 1 in the X direction can reasonably construct the spatial layout and reduce the space occupation in other directions. At the same time, it can also reduce the connection length between the quick-connector 4, cooling medium pipe 34, and battery energy distribution unit 6, improve the flow rate of the coolant, and thus ensure the heat dissipation efficiency of the coolant for the battery system 3.

[0077] In some embodiments, refer to Figure 2 and Figure 5 At least one of the following connections may be provided: between the first surface of the accommodating space 10 and the battery cover 2; or between the second surface of the accommodating space 10 and the tray 31. The first surface of the accommodating space 10 is the surface containing the first opening, and the second surface of the accommodating space 10 is the surface containing the second opening. In this embodiment, the sealing element 35 can be used to seal the first surface of the accommodating space 10 and the battery cover 2, or to seal the second surface of the accommodating space 10 and the tray 31, or both simultaneously, to ensure the airtightness of the battery system 3 within the accommodating space 10. In this embodiment, the tray 31 is detachably mounted on the bottom surface of the accommodating space 10 by a plurality of circumferential fasteners.

[0078] In other embodiments, the seal 35 can be a silicone sealing foam, which has good sealing and waterproof performance. The sealing between the accommodating space 10 and the battery cover 2 and the tray 31 can be adjusted by adjusting the thickness and compression rate of the silicone sealing foam, so as to facilitate the adjustment of the battery's waterproof rating.

[0079] In some embodiments, refer to Figure 1A reinforcing beam 7 can be provided on both sides of the accommodating space 10 between two adjacent longitudinal beams 11 to improve the frame strength of the vehicle frame 1. The reinforcing beam 7 can be set as an irregular structure to avoid other installation parts in the internal space of the vehicle frame 1, thereby improving the space utilization of the vehicle frame 1.

[0080] In summary, the chassis structure provided in this disclosure has the following advantages:

[0081] The battery system 3 is installed from bottom to top into the housing space 10 of the frame 1 via a tray 31. During maintenance and repair of the battery system 3, the tray 31 can be directly removed from the frame 1, making the repair process efficient and convenient. The tray 31 and the second surface of the housing space 10, and the battery cover 2 and the first surface of the housing space 10, are sealed together by a sealant 35, ensuring the airtightness of the battery system 3 within the housing space 10 and providing protection for the battery system 3. The battery body 32 of the battery system 3 is not encased in an additional shell, eliminating redundant structures and facilitating a lightweight design and maximized cell placement. The housing space 10 is equipped with quick-connect fittings 4, including a socket 41 and a plug 42 that interlock in the first direction. The socket 41 has an interface 40 arranged in the second direction, allowing for switching between the first and second directions of insertion, reducing the space occupied by the interface 40 in the first direction, improving the space utilization of the internal structure of the frame 1, and facilitating the insertion and removal operations between the interfaces 40. The socket 41 is provided with a spring assembly 410, which can float in the Z direction under the elastic limit of the spring assembly 410 and slide slightly in the XY plane to absorb some of the manufacturing tolerances of the battery system 3 and the frame 1, ensure the assembly efficiency between the battery system 3 and the frame 1, and reduce production and debugging costs.

[0082] A fourth aspect of this disclosure provides a vehicle including the chassis structure provided in the third aspect of this disclosure, which has all of its beneficial technical effects, and will not be described in detail here.

[0083] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0084] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0085] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A quick plugin, characterized in that, The quick plugin includes: A socket and a plug, wherein the socket and the plug are inserted into each other along a first direction, and the socket has an interface arranged along a second direction, the second direction being at an angle to the first direction; The plug is connected to the battery system, and the interface is adapted to connect to external devices.

2. The quick plugin according to claim 1, characterized in that, The socket includes a first fixing base adapted to fix the socket.

3. The quick plug-in according to claim 2, characterized in that, The socket is provided with a spring assembly, which is connected to the first fixed base.

4. The quick plug-in according to claim 1, characterized in that, The plug includes at least one positioning pin adapted to connect the socket and the plug in the first direction.

5. The quick plug-in according to claim 1, characterized in that, The plug includes a second fixing seat, which is adapted to fix the plug.

6. The quick plug-in according to any one of claims 1-5, characterized in that, The interface includes a first high-voltage interface, a first low-voltage interface, and a second high-voltage interface. The first high-voltage interface and the first low-voltage interface have the same interface direction, and the first high-voltage interface and the second high-voltage interface have opposite interface directions. The first high-voltage interface, the first low-voltage interface, and the second high-voltage interface are respectively connected to external devices.

7. The quick plug-in according to any one of claims 1-5, characterized in that, The interface includes a cooling medium interface, which is adapted to connect to a cooling medium pipeline.

8. The quick plug-in according to claim 7, characterized in that, A valve core is provided at the position where the socket and the plug are inserted, and the valve core is adapted to control the flow of the cooling medium.

9. The quick plug-in according to claim 7, characterized in that, A pressure relief valve is provided on the side connected to the cooling medium interface.

10. The quick plug-in according to claim 1, characterized in that, The external equipment includes electrical equipment and / or cooling equipment.

11. A battery system, characterized in that, It includes a quick-connect plug, a battery body, and a battery energy distribution unit as described in any one of claims 1 to 10, wherein the battery body and the battery energy distribution unit are connected, and the quick-connect plug is connected to the battery body and / or the battery energy distribution unit.

12. The battery system according to claim 11, characterized in that, The device includes a battery cover and a tray, which are respectively connected to the battery body and the battery energy distribution unit, and the battery body and the battery energy distribution unit are disposed between the battery cover and the tray.

13. The battery system according to claim 12, characterized in that, The quick-connect plug includes a first quick-connect plug, the first plug of the first quick-connect plug is fixedly connected to the battery energy distribution unit through a second fixing seat, the first socket of the first quick-connect plug is fixedly connected to the battery cover plate through a first fixing seat, the first high-voltage interface and the first low-voltage interface of the first quick-connect plug are disposed on the first side of the battery energy distribution unit away from the battery body, and the second high-voltage interface of the first quick-connect plug is disposed on the second side of the battery body away from the battery energy distribution unit.

14. The battery system according to claim 12, characterized in that, The battery body includes multiple layers of cells stacked together. A liquid cooling plate is provided between two adjacent layers of cells. The liquid cooling plate has a flow channel for the cooling medium to flow through. Therefore, the quick-connect plug is connected to the liquid cooling plate through a cooling medium pipeline.

15. The battery system according to claim 14, characterized in that, The quick-connect component includes a second quick-connect component, the second plug of which is fixedly connected to the tray, the second socket of which is fixed by a first fixing seat, and the cooling medium interface of which is located on the side of the cooling medium pipeline away from the battery body.

16. The battery system according to claim 15, characterized in that, The battery energy distribution unit is located on one side of the battery body, and the two ends of the battery energy distribution unit are respectively provided with a first fast plug and a second fast plug. The cooling medium pipeline is located between the battery body and the battery energy distribution unit.

17. The battery system of claim 14, wherein, The outer periphery of the battery cell is provided with a baffle. Each layer of the battery cell includes multiple battery cell groups. A reinforcing beam is provided between two adjacent battery cell groups. The bottom surface of the reinforcing beam is fixed on the tray. The two ends of the reinforcing beam are fixedly connected to the baffle.

18. A chassis structure characterized by, include: The vehicle frame and the battery system according to any one of claims 11-17; The vehicle frame has an accommodating space, and the battery system is placed within the accommodating space and fixedly connected to the vehicle frame.

19. The chassis structure according to claim 18, characterized in that, The frame includes two longitudinal beams and two transverse beams, which are connected sequentially to form the accommodating space, and the accommodating space has a first opening and a second opening. The battery system tray is adapted to close a first opening of the accommodating space, and the battery cover of the battery system is adapted to close a second opening of the accommodating space.

20. The chassis structure of claim 19, wherein, The crossbeam has multiple first openings, which are suitable for installing the first high-voltage interface, the first low-voltage interface and the second high-voltage interface of the first fast plug-in in the battery system.

21. The chassis structure of claim 19, wherein, The battery cover is fixedly connected to the first fixing seat of the first quick-connect plug.

22. The chassis structure of claim 19, wherein, The crossbeam has a second opening, which is suitable for installing the cooling medium interface of the second fast plug in the battery system.

23. The chassis structure of claim 19, wherein, At least one of the crossbeams is fixedly connected to the first fixing seat of the second quick-connect insert.

24. The chassis structure according to any one of claims 18 to 23, characterized in that, A seal is provided between the first surface of the accommodating space and the battery cover of the battery system, and / or a seal is provided between the second surface of the accommodating space and the tray of the battery system.

25. A vehicle, characterized in that, The chassis structure included in any one of claims 18 to 24.

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