Replaceable battery pack and electric vehicle

Abstract

The application discloses a replaceable battery pack, comprising: a non-fast-replaceable battery pack assembly; a thermal management conversion interface, the thermal management conversion interface comprising: a battery pack end fast-replaceable liquid cooling connector assembly connected with the thermal management interface; an electrical conversion interface, the electrical conversion interface comprising: a first battery pack end fast-replaceable electrical connector assembly connected with the electrical interface; and a second battery pack end fast-replaceable electrical connector assembly connected with the electrical interface.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy vehicles, in particular to a replaceable battery pack and an electric vehicle. BACKGROUND

[0002] The battery replacement mode of the new energy vehicle can effectively solve the problems of inconvenient charging, high cost of purchasing a vehicle, and short service life of the battery. The battery replacement mode can shorten the time required for power supply. For public transportation tools, taxis, and other application scenarios with a large number of charging times such as online car hailing, the battery replacement technology has great advantages. The battery replacement mode derives the vehicle-battery separation mode, which eliminates the doubts and concerns of vehicle users about the vehicle battery warranty. The battery replacement mode can also prolong the service life of the vehicle battery. The current of the vehicle power battery in the direct current fast charging mode is large, which can reduce the cycle life of the vehicle power battery to some extent and accelerate the capacity decay of the vehicle battery. The battery replacement mode can realize the centralized management of the power battery, store the vehicle power battery in the charging warehouse, slowly charge the power battery, prolong the service life of the new energy battery, and uniformly charge to effectively avoid the damage of the power battery caused by non-standard charging. In addition, the power battery is also convenient for recycling.

[0003] Chinese patent CN216145730U discloses a replaceable battery module and a new energy vehicle. The replaceable battery module comprises a shell, the shell is provided with a plurality of cavities, the bottom of the cavity is provided with a first plug; a plurality of battery modules are detachably arranged in the cavity, the bottom end of the battery module is provided with a second plug, the bottom end is perpendicular to the extension direction of the cavity, the first plug is connected with the second plug, and the first plug and the second plug are connected to complete charging or discharging of the battery module. The provided replaceable battery module can adjust the overall battery capacity or voltage by increasing or decreasing the number of battery modules.

[0004] However, the application needs to be developed based on the battery system, the vehicle body and the control system to develop the functional requirements around the battery replacement. This development mode needs to invest a large amount of design and development verification resources in the early stage of vehicle development, and also needs a long design and development cycle. Moreover, it cannot be used in vehicle models that have been mass-produced on the production line. If a new production line is added, it will increase the costs of additional factory buildings, equipment, workers, etc., greatly increasing the investment costs. SUMMARY

[0005] The replaceable battery pack and the electric vehicle provided by the embodiments of the present application solve the problem that the replaceable battery technology in the prior art cannot be used in mass-produced vehicle models and the cost of developing the functional requirements around the battery replacement based on the battery system, the vehicle body and the control system is too high.

[0006] The embodiments of the present application provide a replaceable battery pack, which comprises:

[0007] A non-fast swap battery pack assembly, comprising:

[0008] a thermal management interface;

[0009] an electrical interface;

[0010] a thermal management conversion interface, the thermal management conversion interface comprising:

[0011] a battery pack end fast swap liquid cooling connector assembly, the battery pack end fast swap liquid cooling connector assembly connected with the thermal management interface;

[0012] an electrical conversion interface, the electrical conversion interface comprising:

[0013] a first battery pack end fast swap electrical connector assembly, the first battery pack end fast swap electrical connector assembly connected with the electrical interface;

[0014] a second battery pack end fast swap electrical connector assembly, the second battery pack end fast swap electrical connector assembly connected with the electrical interface;

[0015] a mechanical conversion interface, the mechanical conversion interface comprising:

[0016] a battery pack end fast swap liquid cooling connector assembly fixing support, the battery pack end fast swap liquid cooling connector assembly fixing support used for fixing the battery pack end fast swap liquid cooling connector assembly;

[0017] a battery pack end fast swap electrical connector assembly fixing support, the battery pack end fast swap electrical connector assembly fixing support used for fixing the first battery pack end fast swap electrical connector assembly and the second battery pack end fast swap electrical connector assembly.

[0018] Preferably, the battery pack with replaceable battery, the electrical interface comprises:

[0019] a non-fast swap battery pack low-voltage communication interface, the non-fast swap battery pack low-voltage communication interface electrically connected with the first battery pack end fast swap electrical connector assembly;

[0020] a non-fast swap battery pack discharge interface, the non-fast swap battery pack discharge interface electrically connected with the first battery pack end fast swap electrical connector assembly;

[0021] a non-fast swap battery pack alternating current charging interface, the non-fast swap battery pack alternating current charging interface electrically connected with the second battery pack end fast swap electrical connector assembly;

[0022] a non-fast swap battery pack direct current charging interface, the non-fast swap battery pack direct current charging interface electrically connected with the second battery pack end fast swap electrical connector assembly.

[0023] Preferably, the battery pack with replaceable battery, the first battery pack end fast swap electrical connector assembly comprises:

[0024] The battery pack quick replacement connector assembly is connected to the vehicle controller connection interface.

[0025] The battery pack end quick replacement connector assembly is connected to the driving motor connection interface.

[0026] The first battery pack end quick replacement connector assembly is connected to the non-quick replacement battery pack communication connection interface.

[0027] The first battery pack end quick replacement connector assembly is connected to the non-quick replacement battery pack discharge connection interface.

[0028] Preferably, the replaceable battery pack, the second battery pack end quick replacement connector assembly comprises:

[0029] The battery pack quick replacement connector assembly is connected to the AC charger, air conditioner compressor, and PTC heater connection interface.

[0030] The battery pack quick replacement connector assembly is connected to the DC charger connection interface.

[0031] The second battery pack end quick replacement connector assembly is connected to the non-quick replacement battery pack AC charging connection interface.

[0032] The second battery pack end quick replacement connector assembly is connected to the non-quick replacement battery pack DC charging connection interface.

[0033] Preferably, the replaceable battery pack, the battery pack end quick replacement liquid cooling connector assembly comprises:

[0034] The battery pack end quick replacement liquid cooling connector is connected to the vehicle end quick replacement liquid cooling connector connection interface.

[0035] The battery pack end quick replacement liquid cooling connector is connected to the non-quick replacement battery pack end liquid cooling connector connection interface.

[0036] Preferably, the replaceable battery pack, the battery pack quick replacement connector assembly and the vehicle controller connection interface and the battery pack end quick replacement connector assembly and the driving motor connection interface are quick plug interfaces with a certain amount of floating.

[0037] The application also provides an electric vehicle with the replaceable battery pack.

[0038] The vehicle body assembly comprises:

[0039] The vehicle body assembly positioning hole.

[0040] The fixed conversion support assembly is used to connect and match the connection interface of the vehicle body assembly.

[0041] Preferably, the electric vehicle, the fixed conversion support assembly comprises:

[0042] The vehicle-end quick-change liquid cooling connector assembly is matched and connected with the battery pack quick-change electric connector assembly and the vehicle controller connection interface.

[0043] The first vehicle-end quick-change electric connector assembly is electrically connected with the battery pack quick-change electric connector assembly and the vehicle controller connection interface and the battery pack-end quick-change electric connector assembly and the drive motor connection interface.

[0044] The second vehicle-end quick-change electric connector assembly is electrically connected with the battery pack quick-change electric connector assembly and the AC charger, air conditioner compressor, PTC heater connection interface and the battery pack quick-change electric connector assembly and the DC charger connection interface.

[0045] Preferably, the electric vehicle, the fixed conversion support assembly comprises a conversion support, and the conversion support comprises:

[0046] The first vehicle-end quick-change electric connector assembly fixing support is used for fixing the first vehicle-end quick-change electric connector assembly.

[0047] The second vehicle-end quick-change electric connector assembly fixing support is used for fixing the second vehicle-end quick-change electric connector assembly.

[0048] Preferably, the electric vehicle, characterized in that,

[0049] The vehicle body assembly positioning hole comprises:

[0050] The first vehicle body assembly positioning hole;

[0051] The second vehicle body assembly positioning hole;

[0052] The conversion support comprises:

[0053] The first conversion support and vehicle body positioning pin are matched and positioned with the first vehicle body assembly positioning hole.

[0054] The second conversion support and vehicle body positioning pin are matched and positioned with the second vehicle body assembly positioning hole.

[0055] One or more technical solutions provided in the embodiments of the application have at least the following technical effects or advantages:

[0056] 1. The quick battery replacement function of the existing vehicle model is realized due to the addition of the quick battery replacement pack assembly.

[0057] 2. Since the adapter bracket is added to the existing pure electric vehicle model, the vehicle body and battery pack do not need to be changed, the safety is high, the reliability is good, the development cycle is greatly shortened, and the development cost is reduced.

[0058] 3. In the battery replacement positioning scheme, the positioning characteristics and positioning system of the original whole vehicle body are still used, and the positioning accuracy in the battery replacement process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 The preferred battery pack of the embodiment can be replaced by the axonometric view;

[0060] Figure 2 The preferred battery pack of the embodiment can be replaced by the top view;

[0061] Figure 3 The preferred non-fast battery pack assembly and interface of the embodiment are axonometric view;

[0062] Figure 4 The preferred non-fast battery pack assembly and interface of the embodiment are top view;

[0063] Figure 5 The preferred battery pack assembly of the embodiment can be replaced by the exploded schematic diagram;

[0064] Figure 6 The preferred battery system interface definition schematic diagram of the non-replacement vehicle model of the embodiment is provided;

[0065] Figure 7 The preferred battery system interface definition schematic diagram of the replacement vehicle model of the embodiment is provided;

[0066] Figure 8 The preferred electric vehicle battery replacement system assembly schematic diagram of the battery pack of the embodiment can be replaced;

[0067] Figure 9 The preferred electric vehicle battery replacement system exploded schematic diagram of the battery pack of the embodiment can be replaced;

[0068] Figure 10 The preferred connection schematic diagram of the vehicle body assembly and the fixed conversion bracket assembly of the embodiment is provided;

[0069] Figure 11 The preferred fixed conversion bracket assembly axonometric view of the embodiment is provided;

[0070] Figure 12 The preferred fixed conversion bracket assembly exploded schematic diagram of the embodiment is provided.

[0071] REFERENCE NUMERALS:

[0072] The vehicle body assembly 100;

[0073] First vehicle body assembly positioning hole 1001;

[0074] Second vehicle body assembly positioning hole 1002;

[0075] Welding nut 1003;

[0076] Fixed conversion bracket assembly 200;

[0077] Middle adapter bracket 201;

[0078] First middle adapter bracket and vehicle body fixing point 2011;

[0079] Second middle adapter bracket and vehicle body fixing point 2012;

[0080] Middle adapter bracket floating nut 202;

[0081] Conversion bracket floating nut 203;

[0082] Vehicle end quick-change liquid cooling connector assembly 204;

[0083] First vehicle end quick-change electric connector assembly 205;

[0084] Second vehicle end quick-change electric connector assembly 206;

[0085] Conversion bracket 207;

[0086] First adapter bracket and vehicle body positioning pin 2071;

[0087] Second adapter bracket and vehicle body positioning pin 2072;

[0088] Vehicle end quick-change liquid cooling connector assembly fixing bracket 2073;

[0089] First vehicle end quick-change electric connector assembly fixing bracket 2074;

[0090] Second vehicle end quick-change electric connector assembly fixing bracket 2075;

[0091] Conversion bracket and vehicle body connection interface 2076;

[0092] Quick-change electric package assembly 300;

[0093] Non-quick-change battery package assembly 301;

[0094] Non-quick-change battery package low-voltage communication interface 3011;

[0095] Non-quick-change battery package discharge interface 3012;

[0096] Non-quick-change battery package AC charging interface 3013;

[0097] Non-fast battery pack DC charging interface 3014;

[0098] Non-fast battery pack and vehicle body fixing interface 3015;

[0099] First non-fast battery pack and conversion bracket positioning hole 3016;

[0100] Second non-fast battery pack and conversion bracket positioning hole 3017;

[0101] Non-fast battery pack water cooling interface 3018;

[0102] Non-fast battery pack and vehicle body middle fixing interface 3019;

[0103] Battery pack end fast liquid cooling connector assembly 302;

[0104] Battery pack end fast liquid cooling connector and vehicle end fast liquid cooling connector connection interface 3021;

[0105] Battery pack end fast liquid cooling connector and non-fast battery pack end liquid cooling connector connection interface 3022;

[0106] Battery pack end fast liquid cooling connector assembly fixing bracket 303;

[0107] First battery pack end fast electrical connector assembly 304;

[0108] Battery pack fast electrical connector assembly and vehicle controller connection interface 3041;

[0109] Battery pack end fast electrical connector assembly and drive motor connection interface 3042;

[0110] First battery pack end fast electrical connector assembly and non-fast battery pack communication connection interface 3043;

[0111] First battery pack end fast electrical connector assembly and non-fast battery pack discharge connection interface 3044;

[0112] Second battery pack end fast electrical connector assembly 305;

[0113] Battery pack fast electrical connector assembly and AC charger, air conditioner compressor, PTC heater connection interface 3051;

[0114] Battery pack fast electrical connector assembly and DC charger connection interface 3052;

[0115] Second battery pack end fast electrical connector assembly and non-fast battery pack AC charging connection interface 3053;

[0116] Second battery pack end fast electrical connector assembly and non-fast battery pack DC charging connection interface 3054;

[0117] Battery pack end quick electrical connector assembly fixing bracket 306;

[0118] Quick connection bolt assembly 307;

[0119] Middle quick change connection bolt assembly 308. DETAILED DESCRIPTION

[0120] For the purpose, technical solutions and advantages of the embodiments of the present application, the technical solutions of the embodiments of the present application will be described in more detail below in combination with the drawings of the embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The described embodiments are part of the embodiments of the present application, not all embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0121] In addition, it also needs to be explained that, unless otherwise explicitly specified and limited, the "installation", "connection", "connection" and similar words used in the description of the present application should be understood in a broad sense, for example, the connection can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements, those skilled in the art can understand its specific meaning in the present application according to the specific circumstances.

[0122] The preferred embodiments of the application will be described in detail below in combination with the drawings.

[0123] Figure 1 The preferred axis measurement diagram of the battery pack of the present embodiment. As shown in Figure 1 and Figure 2 The quick-change battery pack 300 includes a non-quick-change battery pack assembly 301, a thermal management conversion interface, an electrical conversion interface and a mechanical conversion interface. As shown in Figure 3 and Figure 4As shown, the non-fast battery pack assembly 301 is the battery of an existing non-fast battery electric vehicle, mainly including: a thermal management interface, an electrical interface, and a mechanical interface. Among them, the thermal management interface includes: a non-fast battery pack water cooling interface 3018; the electrical interface includes: a non-fast battery pack low-voltage communication interface 3011, a non-fast battery pack discharge interface 3012, a non-fast battery pack alternating current charging interface 3013, and a non-fast battery pack direct current charging interface 3014; the mechanical interface includes: a non-fast battery pack and vehicle body fixing interface 3015, a first non-fast battery pack and conversion support positioning hole 3016, a second non-fast battery pack and conversion support positioning hole 3017, and a non-fast battery pack and vehicle body middle fixing interface 3019.

[0124] The thermal management conversion interface, the electrical conversion interface, and the mechanical conversion interface of the replaceable battery pack 300 are used to modify the platform battery system design without changing it, to realize the fast connection and disconnection function of the mechanical interface, the electrical interface, and the thermal management interface of the non-fast battery pack assembly 301.

[0125] The mechanical conversion interface of the replaceable battery pack 300 includes: a battery pack end fast liquid cooling connector assembly fixing support 303, a battery pack end fast electrical connector assembly fixing support 306, a fast connection bolt assembly 307, and a middle fast connection bolt assembly 308. The fast connection bolt assembly cooperates with the automatic locking and unlocking device at the battery swap station end, and can realize the connection and disconnection between the battery system and the conversion support.

[0126] The thermal management conversion interface of the replaceable battery pack 300 includes: a battery pack end fast liquid cooling connector assembly 302, which includes a battery pack end fast liquid cooling connector and a vehicle end fast liquid cooling connector connection interface 3021, and a battery pack end fast liquid cooling connector and a non-fast battery pack end liquid cooling connector connection interface 3022. The battery pack end fast liquid cooling connector assembly 302 is connected with the thermal management interface of the non-fast battery pack assembly 301. More specifically, one end of the battery pack end fast liquid cooling connector assembly 302 is connected with the non-fast battery pack water cooling interface 3018 through a standard VDA interface (fast plug), and the other end is designed as a fast plug interface 3021 with a certain amount of floating. The fast plug interface can realize the fast connection function.

[0127] As shown in FIG. 6, the replaceable battery pack 300 is connected with the non-fast battery pack assembly 301 through the mechanical conversion interface, the electrical conversion interface, and the thermal management conversion interface. Figure 5As shown, the electrical conversion interface of the replaceable battery pack 300 includes: a first battery pack end quick replacement connector assembly 304 and a second battery pack end quick replacement connector assembly 305, the first battery pack end quick replacement connector assembly 304 and the second battery pack end quick replacement connector assembly 305 are fixed on the battery pack end quick replacement connector assembly fixing support 306, the quick replacement connector fixing support is fixed on the non-quick replacement battery pack assembly 301 by bolts, and reliable connection can be achieved without welding and disassembling the battery pack. The electrical interface connection of the first battery pack end quick replacement connector assembly 304 and the second battery pack end quick replacement connector assembly 305 and the non-quick replacement battery pack assembly 301, more specifically, one end of the first battery pack end quick replacement connector assembly 304 is connected to the non-quick replacement battery pack low-voltage communication interface 3011 and the non-quick replacement battery pack discharge interface 3012 through the same type of connector plug of the original whole vehicle, and after plugging, the connector will be self-locked and cannot be separated by non-artificial external force, the other end is designed as a quick plug interface battery pack quick replacement connector assembly with a certain amount of floating, and the vehicle controller connection interface 3041 and the battery pack end quick replacement connector assembly and the driving motor connection interface 3042 are connected to realize the quick replacement function; one end of the second battery pack end quick replacement connector assembly 305 is connected to the non-quick replacement battery pack low-voltage communication interface 3013 and the non-quick replacement battery pack discharge interface 3014 through the same type of connector plug of the original whole vehicle, and after plugging, the connector will be self-locked and cannot be separated by non-artificial external force, the other end is designed as a quick plug interface battery pack quick replacement connector assembly with a certain amount of floating, and the battery pack quick replacement connector assembly and the alternating current charger, air conditioner compressor, PTC heater connection interface 3051 and the battery pack quick replacement connector assembly and the direct current charger connection interface 3052 are connected to realize the quick replacement function. Through the setting of the mechanical conversion interface, the thermal management conversion interface and the electrical conversion interface, the replaceable battery pack 300 has the structure and function of quick dismounting. More specifically, the first battery pack end quick replacement connector assembly 304 further includes: a first battery pack end quick replacement connector assembly and a non-quick replacement battery pack communication connection interface 3043 and a first battery pack end quick replacement connector assembly and a non-quick replacement battery pack discharge connection interface 3044. The second battery pack end quick replacement connector assembly 305 further includes: a second battery pack end quick replacement connector assembly and a non-quick replacement battery pack alternating current charging connection interface 3053 and a second battery pack end quick replacement connector assembly and a non-quick replacement battery pack direct current charging connection interface 3054.

[0128] Figure 6 The schematic diagram of the preferred non-replaceable battery system interface of the embodiment is defined as Figure 7 The schematic diagram of the preferred replaceable battery system interface of the embodiment is defined, and it is known from various interface definitions that the quick replacement function cannot be realized without setting the interface conversion.

[0129] As Figure 8The schematic diagram of the battery replacement system assembly of the electric vehicle with the replaceable battery pack of the preferred embodiment of the present application is shown, Figure 9 The schematic diagram of the battery replacement system of the electric vehicle with the replaceable battery pack of the preferred embodiment is shown, Figure 8 and Figure 9 The electric vehicle provided by the present application comprises a vehicle body assembly 100, a fixed conversion support assembly 200 and a replaceable battery pack 300. The replaceable battery pack 300 is fixed on the vehicle body assembly 100 through the fixed conversion support assembly 200. The fixed conversion support assembly 200 has a middle adapter support floating nut 202 and a conversion support floating nut 203 corresponding to the quick connection bolt assembly 307 and the middle quick replacement connection bolt assembly 308 of the replaceable battery pack 300. The quick replacement connection bolt can be fastened or separated from the floating nut through the end unlocking gun structure of the quick replacement station, so as to realize the quick replacement of the battery system and the vehicle body.

[0130] Figure 10 The schematic diagram of the connection between the vehicle body assembly and the fixed conversion support assembly of the preferred embodiment is shown, Figure 9 The vehicle body assembly is provided with a vehicle body assembly positioning hole and a welding nut 1003. Preferably, a first vehicle body assembly positioning hole 1001 and a second vehicle body assembly positioning hole 1002 are provided. Correspondingly, the conversion support 207 of the fixed conversion support assembly 200 is provided with a first adapter support and vehicle body positioning pin 2071 and a second adapter support and vehicle body positioning pin 2072 corresponding thereto. The vehicle body assembly positioning hole is originally used for the assembly and welding positioning of each sub-assembly of the vehicle body. During the assembly process of the fixed conversion support assembly 200, the positioning hole features and positioning system principle of the vehicle body assembly are directly used to ensure the installation accuracy of the fixed conversion support assembly 200, and also ensure the position accuracy of each connection interface on the adapter support, so as to ensure the smooth positioning and connection during the battery replacement process.

[0131] Figure 11 The isometric view of the fixed conversion support assembly of the preferred embodiment is shown, Figure 12 The isometric view of the fixed conversion support assembly is shown, Figure 11 and Figure 12As shown, in addition to the above-mentioned conversion bracket 207, the fixed conversion bracket assembly 200 further comprises: a middle adapter bracket 201, a vehicle end quick-change liquid cooling connector assembly 204, a first vehicle end quick-change electric connector assembly 205, and a second vehicle end quick-change electric connector assembly 206. Among them, the middle adapter bracket 201 comprises a first middle adapter bracket and vehicle body fixing point 2011 and a second middle adapter bracket and vehicle body fixing point 2012; the vehicle end quick-change liquid cooling connector assembly 204 matches the quick plug interface 3021 of the quick-change battery pack 300 with a certain amount of floating; the first vehicle end quick-change electric connector assembly 205 matches the quick plug interface 3041, 3042 of the quick-change battery pack 300 with a certain amount of floating; the second vehicle end quick-change electric connector assembly 206 matches the quick plug interface 3051, 3052 of the quick-change battery pack 300 with a certain amount of floating; the conversion bracket 207 further comprises: a vehicle end quick-change liquid cooling connector assembly fixing bracket 2073, a first vehicle end quick-change electric connector assembly fixing bracket 2074 for fixing the first vehicle end quick-change electric connector assembly 205, a second vehicle end quick-change electric connector assembly fixing bracket 2075 for fixing the second vehicle end quick-change electric connector assembly 206, and an adapter bracket and vehicle body connection interface 2076.

[0132] The fixed conversion bracket assembly 200 is a newly added component between the vehicle body assembly 100 and the quick-change battery pack 300, which needs to match the connection interface of the vehicle body assembly and the interface of the original non-quick-change battery pack, and needs to ensure the installation and positioning accuracy in the whole process to meet the accuracy and reliability in the quick-change process. Preferably, the fixed conversion bracket assembly 200 provided by the application is integrally processed to ensure the processing accuracy; the mechanical interface, the thermal management interface, and the electrical connection interface connected with the quick-change battery pack 300 and the vehicle body assembly 100 are all integrated on the fixed conversion bracket assembly 200, which reduces the assembly and connection tolerances of each interface and improves the assembly performance.

[0133] By adding additional components as described above, the change from a non-quick-change vehicle to a quick-change vehicle is realized. The modification process does not require welding, cutting, or bonding, and all parts can be connected mechanically through bolts, which is easy to operate and reliable in connection.

[0134] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the technical scope disclosed in the application according to the technical solution and the utility model concept of the application, which should be covered within the protection scope of the application.

Claims

1. A replaceable battery pack, comprising: a non-fast replaceable battery pack assembly for a non-fast replaceable battery pack of a pure electric vehicle, comprising: a thermal management interface, the thermal management interface comprising a non-fast replaceable battery pack water cooling interface; an electrical interface; a mechanical interface; a thermal management conversion interface, the thermal management conversion interface comprising: a battery pack end fast replaceable liquid cooling connector assembly, the battery pack end fast replaceable liquid cooling connector assembly connected to the thermal management interface, the battery pack end fast replaceable liquid cooling connector assembly comprising a battery pack end fast replaceable liquid cooling connector and vehicle end fast replaceable liquid cooling connector connection interface and a battery pack end fast replaceable liquid cooling connector and non-fast replaceable battery pack end liquid cooling connector connection interface; an electrical conversion interface, the electrical conversion interface comprising: a first battery pack end fast replaceable electrical connector assembly, the first battery pack end fast replaceable electrical connector assembly connected to the electrical interface; a second battery pack end fast replaceable electrical connector assembly, the second battery pack end fast replaceable electrical connector assembly connected to the electrical interface; a mechanical conversion interface, the mechanical conversion interface comprising: a battery pack end fast replaceable liquid cooling connector assembly fixing support, the battery pack end fast replaceable liquid cooling connector assembly fixing support used for fixing the battery pack end fast replaceable liquid cooling connector assembly; a battery pack end fast replaceable electrical connector assembly fixing support, the battery pack end fast replaceable electrical connector assembly fixing support used for fixing the first battery pack end fast replaceable electrical connector assembly and the second battery pack end fast replaceable electrical connector assembly; wherein the thermal management conversion interface, the electrical conversion interface and the mechanical conversion interface are used for modification without changing the platform battery system design to realize the fast replaceable connection and disconnection function of the mechanical interface, the electrical interface and the thermal management interface of the non-fast replaceable battery pack assembly.

2. The battery pack of claim 1, wherein, the electrical interface comprising: a non-fast replaceable battery pack low-voltage communication interface, the non-fast replaceable battery pack low-voltage communication interface electrically connected to the first battery pack end fast replaceable electrical connector assembly; a non-fast replaceable battery pack discharge interface, the non-fast replaceable battery pack discharge interface electrically connected to the first battery pack end fast replaceable electrical connector assembly; a non-fast replaceable battery pack alternating current charging interface, the non-fast replaceable battery pack alternating current charging interface electrically connected to the second battery pack end fast replaceable electrical connector assembly; a non-fast replaceable battery pack direct current charging interface, the non-fast replaceable battery pack direct current charging interface electrically connected to the second battery pack end fast replaceable electrical connector assembly.

3. The battery pack of claim 1, wherein, the first battery pack end fast replaceable electrical connector assembly comprising: a battery pack fast replaceable electrical connector assembly and vehicle controller connection interface; a battery pack end fast replaceable electrical connector assembly and drive motor connection interface; a first battery pack end fast replaceable electrical connector assembly and non-fast replaceable battery pack communication connection interface; a first battery pack end fast replaceable electrical connector assembly and non-fast replaceable battery pack discharge connection interface.

4. The battery pack of claim 1, wherein, the second battery pack end fast replaceable electrical connector assembly comprising: a battery pack fast replaceable electrical connector assembly and alternating current charger, air conditioner compressor, PTC heater connection interface; a battery pack fast replaceable electrical connector assembly and direct current charger connection interface; a second battery pack end fast replaceable electrical connector assembly and non-fast replaceable battery pack alternating current charging connection interface; The second battery pack end quick battery replacement connector assembly is connected with the non-quick battery pack direct current charging connection interface.

5. The battery pack of claim 3, wherein, The battery pack quick battery replacement connector assembly and the vehicle controller connection interface and the battery pack end quick battery replacement connector assembly and the driving motor connection interface are quick plug-in interfaces with a certain amount of floating.

6. An electric vehicle with the replaceable battery pack according to any one of claims 3 to 5, comprising: a vehicle body assembly, the vehicle body assembly comprising: a vehicle body assembly positioning hole; a fixed conversion support assembly, the fixed conversion support assembly being used to connect and match the connection interface of the vehicle body assembly with the replaceable battery pack.

7. The electric vehicle of claim 6, wherein, The fixed conversion support assembly comprises: a vehicle end quick liquid cooling connector assembly, the vehicle end quick liquid cooling connector assembly being matched and connected with the vehicle controller connection interface of the battery pack quick battery replacement connector assembly; a first vehicle end quick battery replacement connector assembly, the first vehicle end quick battery replacement connector assembly being electrically connected with the vehicle controller connection interface of the battery pack quick battery replacement connector assembly and the driving motor connection interface of the battery pack end quick battery replacement connector assembly; a second vehicle end quick battery replacement connector assembly, the second vehicle end quick battery replacement connector assembly being electrically connected with the alternating current charger, air conditioner compressor and PTC heater connection interface of the battery pack quick battery replacement connector assembly and the direct current charger connection interface of the battery pack quick battery replacement connector assembly.

8. The electric vehicle of claim 7, wherein, The fixed conversion support assembly comprises a conversion support, the conversion support comprising: a first vehicle end quick battery replacement connector assembly fixing support, the first vehicle end quick battery replacement connector assembly fixing support being used to fix the first vehicle end quick battery replacement connector assembly; a second vehicle end quick battery replacement connector assembly fixing support, the second vehicle end quick battery replacement connector assembly fixing support being used to fix the second vehicle end quick battery replacement connector assembly.

9. The electric vehicle according to claim 7, wherein The vehicle body assembly positioning hole comprises: a first vehicle body assembly positioning hole; a second vehicle body assembly positioning hole; The conversion support comprises: a first conversion support and vehicle body positioning pin, the first conversion support and vehicle body positioning pin being matched and positioned with the first vehicle body assembly positioning hole; a second conversion support and vehicle body positioning pin, the second conversion support and vehicle body positioning pin being matched and positioned with the second vehicle body assembly positioning hole.

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