Vehicle-mounted quick-swap box assembly, vehicle-mounted quick-swap battery assembly and new energy vehicles

Abstract

The present invention relates to an on-board quick-change box assembly, an on-board quick-change battery assembly and a new energy vehicle. The on-board quick-change box assembly is used to connect a power battery system and a vehicle, and includes a shell; a high-voltage connection end, the high-voltage connection end is arranged on the shell, and the high-voltage connection end is used to connect the high-voltage connector of the power battery system; a low-voltage connection end, the low-voltage connection end is arranged on the shell, and the low-voltage connection end is used to connect the low-voltage connector of the power battery system; a quick-change connection end, the quick-change connection end is arranged on the shell, and the quick-change connection end is used to connect the power end of the vehicle, and the high-voltage connection end and the low-voltage connection end are respectively connected to the quick-change connection end. By using the on-board quick-change box assembly, the power battery system can be separated from the vehicle, and the charging time is saved and the cost of subsequent maintenance is reduced without changing the original battery system design.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a vehicle-mounted quick-change box assembly, a vehicle-mounted quick-change battery assembly, a new energy vehicle, and a battery replacement method for a new energy vehicle. Background Art

[0002] At the beginning of the design of pure electric new energy vehicles, considering the vehicle's endurance, they are usually equipped with a large-capacity power battery system. The power battery system is integrated into the vehicle in the form of a standard battery pack. The battery system design is complex and occupies a large space. Due to the large capacity of the power battery system, it takes a long time to charge in daily use, which is inconvenient for users. In addition, the power battery system will fail in long-term use, such as high and low voltage connectors, water connectors, etc., which are prone to failure after long-term use. If they are integrated inside the battery system, it will increase the difficulty of replacement and increase the after-sales maintenance cost. Summary of the invention

[0003] Based on this, it is necessary to provide a vehicle-mounted quick-change box assembly to address the problems of time-consuming charging and high maintenance costs of power battery systems.

[0004] A vehicle-mounted quick-change box assembly is used to connect a power battery system to a vehicle, comprising a shell; a high-voltage connection end, which is arranged on the shell and is used to connect to a high-voltage connector of the power battery system; a low-voltage connection end, which is arranged on the shell and is used to connect to a low-voltage connector of the power battery system; a quick-change connection end, which is arranged on the shell and is used to connect to a power terminal of the vehicle, and the high-voltage connection end and the low-voltage connection end are respectively connected to the quick-change connection end.

[0005] Furthermore, a low-pressure connector and a high-pressure connector are respectively provided on the quick-change connection end, the low-pressure connector is connected to the low-pressure connection end, and the high-pressure connector is connected to the high-pressure connection end.

[0006] Furthermore, it also includes a water channel integrated end, which is arranged on the shell and is used to connect to the water channel connector of the power battery system.

[0007] Furthermore, the water channel integrated end includes a water channel bracket and a pipe assembly, the water channel bracket is arranged on the shell, the pipe assembly is arranged on the water channel bracket, and the pipe assembly is connected to the water channel joint of the power battery system.

[0008] Furthermore, the shell is in a cubic structure, the high-voltage connection end and the low-voltage connection end are respectively arranged on two opposite sides of the shell, and the quick-change connection end is arranged on the top of the shell.

[0009] Furthermore, it also includes a base, the shell is arranged on the base, and the base is circumferentially provided with a plurality of clamping ends.

[0010] Furthermore, a vehicle-mounted quick-change battery assembly is provided, comprising the above-mentioned vehicle-mounted quick-change box assembly, characterized in that it also comprises a power battery system, and the power battery system is connected to the vehicle-mounted quick-change box.

[0011] Furthermore, it also includes a tray, the power battery system and the vehicle-mounted quick-change box assembly are fixed on the tray, and the tray is provided with clamping claws.

[0012] Furthermore, the clamp is provided with a magnetic component, and the magnetic component is used to adsorb the vehicle frame.

[0013] Furthermore, a new energy vehicle is provided, comprising the above-mentioned on-vehicle quick-change battery assembly, and also comprising a frame, wherein the clamping claw clamps the frame.

[0014] Furthermore, a method for replacing a battery of a new energy vehicle is provided, comprising the new energy vehicle described above, and further comprising the following steps:

[0015] The power battery system and the vehicle-mounted quick-change box assembly are fixed on the tray;

[0016] The high-pressure connection end is connected to the high-pressure connector, the low-pressure connection end is connected to the low-pressure connector, and the waterway integration end is connected to the waterway connector;

[0017] The clamping jaws clamp the frame of the vehicle;

[0018] The quick-change connection end is connected to the power-consuming end of the vehicle.

[0019] The vehicle-mounted quick-change box assembly provided in the present application is connected to the vehicle-mounted power battery system, and includes a shell and a high-voltage connection end, a low-voltage connection end and a quick-change connection end arranged on the shell, wherein the high-voltage connection end is connected to the high-voltage connector of the power battery system, the low-voltage connection end is connected to the low-voltage connector of the power battery system, the quick-change connection end is connected to the power end of the vehicle, the low-voltage connection end and the high-voltage connection end are respectively connected to the quick-change connection end, and the power battery system and the power end of the vehicle are connected through the high-voltage connection end, the low-voltage connection end and the quick-change connection end to realize the charging function of the new energy vehicle. By using the vehicle-mounted quick-change box assembly, the power battery system can be separated from the vehicle, and by making the power battery system independent of the vehicle structure, it is convenient to realize the vehicle-battery separation without changing the original battery system design. When changing the battery, only a new spare power battery system needs to be replaced, so that the battery can be changed more quickly, which saves charging time on the one hand, reduces the difficulty of replacing the power battery system, and effectively reduces the cost of subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a vehicle-mounted quick-change box assembly according to an embodiment of the present application;

[0021] Figure 2 A three-dimensional diagram of a vehicle-mounted quick-change battery assembly according to an embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of assembling a vehicle-mounted quick-change battery assembly according to an embodiment of the present application;

[0023] Figure 4 This is a flow chart of a battery replacement method for a new energy vehicle according to an embodiment of the present application.

[0024] Among them, 1, shell, 2, high pressure connection end, 3, low pressure connection end, 4, quick change connection end, 41, high pressure joint, 42, low pressure joint, 5, waterway integrated end, 51, waterway bracket, 52, pipeline assembly, 521, water inlet pipeline, 522, water outlet pipeline, 6, base, 61, clamping end;

[0025] 10. Vehicle-mounted quick-change box assembly, 20. Power battery system, 21. Power battery system high-voltage connector interface, 22. Power battery system low-voltage connector interface, 23. Vehicle power end interface, 30. Tray, 31. Clamp, 311. Clamp seat, 312. Clip; 40. Frame. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] Figure 1 A three-dimensional diagram of a vehicle-mounted quick-change box assembly according to an embodiment of the present application is shown. Figure 2 A three-dimensional diagram of a vehicle-mounted quick-change battery assembly according to an embodiment of the present application is shown, combined with Figure 1 , Figure 2 As shown, the vehicle-mounted quick-change box assembly provided by the present application is used to connect the power battery system and the vehicle, and acts as an intermediate medium for the circuit connection between the power battery system and the vehicle, and helps the power battery system and the vehicle to realize the function of quick connection box charging through the vehicle-mounted quick-change box assembly. Specifically, the vehicle-mounted quick-change box assembly 10 includes a housing 1, a high-voltage connection terminal 2, a low-voltage connection terminal 3, a quick-change connection terminal 4, a waterway integrated terminal 5 and a base 6, wherein the high-voltage connection terminal 2, the low-voltage connection terminal 3, the quick-change connection terminal 4, the waterway integrated terminal 5 and the base 6 are integrated on the housing 1, the high-voltage connection terminal 2 is used to connect the high-voltage connector 21 of the power battery system, the low-voltage connection terminal 3 is used to connect the low-voltage connector 22 of the power battery system, and the quick-change connection terminal 4 is used to connect the vehicle power terminal 23. At the same time, the high-voltage connection terminal 2 and the low-voltage connection terminal 3 are respectively connected to the quick-change connection terminal 4, and the power battery system high-voltage connector 21 and the power battery system low-voltage connector 22 are connected to the vehicle power terminal 23 through the quick connection terminal 4, so as to achieve the purpose of continuous power supply to the vehicle by the power battery system 20.

[0033] Further, the quick-change connection end 4 includes a high-voltage connector 41 and a low-voltage connector 42. The high-voltage connector 41 is connected to the high-voltage connection end 2 and is connected to the high-voltage connector 21 of the power battery system through the high-voltage connection end 2. The low-voltage connector 42 is connected to the low-voltage connection end 3 and is connected to the low-voltage connector 22 of the power battery system through the low-voltage connection end 3. Optionally, the high-voltage connection end 2 of the vehicle-mounted quick-change box assembly 10 is connected to the high-voltage connector 41 on the quick-change connection end 4 through an internal copper busbar transfer, and the high-voltage connection end 2 is connected to the high-voltage connector 21 of the power battery system through the high-voltage connector 41 to form a high-voltage circuit conduction of the battery system; the low-voltage connection end 3 of the vehicle-mounted quick-change box assembly 10 is connected to the low-voltage connector 42 on the quick-change connection end 4 through an internal wiring harness transfer, and the low-voltage connection end 3 is connected to the low-voltage connector 22 of the power battery system through the low-voltage connector 42 to form a low-voltage circuit conduction of the battery system.

[0034] Furthermore, the water channel integrated end 5 on the vehicle-mounted quick-change box assembly 10 is connected to the water channel connector (not shown) of the power battery system 20, and the liquid cooling cycle of the power battery system 20 is realized through the water channel integrated end 5. The water channel integrated end 5 includes a water channel bracket 51 and a pipe assembly 52. ​​The water channel bracket 51 is arranged on the housing 1. Specifically, the water channel bracket 51 has an extended cantilever, one end of which is connected to the housing 1, and the connection method includes but is not limited to welding, riveting, threaded connection, etc., and the other end extends in a direction away from the housing 1. The cantilevered water channel bracket 51 allows the pipe assembly 52 arranged thereon to effectively avoid other circuits, such as high-pressure circuits, low-pressure circuits, etc.; the pipe assembly 52 includes a water inlet pipe 521 and a water outlet pipe 522. The water inlet pipe 521 is connected to the water inlet pipe of the power battery system 20, and the water outlet pipe 522 is connected to the water outlet pipe of the power battery system 20, thereby forming a water channel circulation loop, and cooling the power battery system 20 is realized through cold water circulation.

[0035] Optionally, the water inlet pipe 521 and the water outlet pipe 522 are arranged in parallel in the longitudinal extension direction of the water channel bracket 51, thereby further saving installation space and avoiding interference with other circuits. The two ends of the water inlet pipe 521 are respectively connected to the water outlet of the vehicle water tank and the coolant circuit inlet of the power battery system 20, and the two ends of the water outlet pipe 522 are respectively connected to the coolant circuit outlet of the power battery system 20 and the water inlet of the vehicle water tank.

[0036] In one embodiment of the present application, the shell 1 is a cubic structure, and the high-pressure connection terminal 1 and the low-pressure connection terminal 2 connected thereto are respectively arranged on two opposite sides of the shell 1, the quick-change connection terminal 4 is arranged on the top of the shell 1, and the water channel integration terminal 5 is arranged on the side of the shell 1 near the top, thereby further optimizing the spatial structure of the entire vehicle-mounted quick-change box assembly 10, and the use of a standardized structure is more convenient for mass production, effectively reducing production costs.

[0037] Furthermore, the housing 1 is made of cast aluminum, the vehicle-mounted quick-change box assembly 10 is grounded through the housing 1 itself, and the interior of the vehicle-mounted quick-change box assembly 10 is grounded to the quick connection terminal 4 .

[0038] Further, the base 6 is disposed at the bottom of the housing 1, and the vehicle-mounted quick-change box assembly 10 is fixedly connected through the base 6. Optionally, the base 6 is circumferentially provided with a plurality of clamping ends 61. Figure 2 As shown, the vehicle-mounted quick-change box assembly 10 provided in the present application is usually connected to a tray 30, and the vehicle-mounted quick-change box assembly 10 can be connected to the vehicle through the tray 30. A plurality of clamping ends 61 are provided on the base 6 to facilitate the connection between the vehicle-mounted quick-change box assembly 10 and the tray 30. Optionally, the clamping end 61 is a notch structure to facilitate clamping of the fixture on the tray 30. Optionally, a threaded hole is provided on the clamping end 61 to connect to the tray 30 through a bolt.

[0039] The vehicle-mounted quick-change box assembly provided in the present application is connected to the vehicle-mounted power battery system, and includes a shell and a high-voltage connection end, a low-voltage connection end and a quick-change connection end arranged on the shell, wherein the high-voltage connection end is connected to the high-voltage connector of the power battery system, the low-voltage connection end is connected to the low-voltage connector of the power battery system, the quick-change connection end is connected to the power end of the vehicle, the low-voltage connection end and the high-voltage connection end are respectively connected to the quick-change connection end, and the power battery system and the power end of the vehicle are connected through the high-voltage connection end, the low-voltage connection end and the quick-change connection end to realize the charging function of the new energy vehicle. By utilizing the on-board quick-change box assembly, the power battery system can be separated from the vehicle. By making the power battery system independent of the vehicle structure, it is easy to achieve vehicle-battery separation without changing the original battery system design. When replacing the battery, only a new spare power battery system needs to be replaced, thereby performing the battery replacement more quickly. On the one hand, it saves charging time, and on the other hand, it reduces the difficulty of replacing the power battery system. In addition, the relevant connectors of the power battery system are introduced into the on-board quick-change box assembly. When the connector fails, only the on-board quick-change box assembly needs to be disassembled, repaired or replaced, which effectively reduces the cost of subsequent maintenance.

[0040] Continue reading Figure 2 As shown, the present application provides a vehicle-mounted quick-change battery assembly, including a vehicle-mounted quick-change box assembly 10, a power battery system 20 and a tray 30. The vehicle-mounted quick-change box assembly 10 and the power battery system 20 are arranged on the tray 30. The housing 1 of the vehicle-mounted quick-change box assembly 10 is fixedly connected to the tray 30. The high-voltage connection end 2 thereon is connected to the high-voltage connector interface 21 of the power battery system to form a high-voltage circuit, the low-voltage connection end 3 is connected to the low-voltage connector interface 22 of the power battery system to form a low-voltage circuit, and the quick-change connection end 4 is connected to the vehicle power end interface 23. The power battery system 20 is connected to the power end of the vehicle through the vehicle-mounted quick-change box assembly 10, thereby forming a charging circuit. Furthermore, a clamp 31 is provided on the tray 30, and the clamp 31 is used to connect to the frame of the vehicle, and the vehicle quick-change battery assembly is connected to the vehicle through the clamp 31. Optionally, the clamps 31 are arranged in pairs on both sides of the power battery system 20, and include a clamp seat 311 and a clamping piece 312. The clamp seat 311 is an arched structure, the clamp seat is arranged on the tray 30, and the clamping piece 312 is arranged on the clamp seat 311. Optionally, the clamping piece 312 is an elastic steel sheet.

[0041] In another embodiment of the present application, the clamp 31 is fixedly connected to the frame, and when replacing the battery, it is only necessary to connect the tray 30 to the clamp 31.

[0042] Combination Figure 3The assembly diagram of a vehicle-mounted quick-change battery assembly of an embodiment of the present application is shown. The vehicle-mounted quick-change battery assembly provided by the present application is connected to the vehicle frame 40 through the clamping claws 31 thereon, and the vehicle-mounted quick-change box assembly 10 is used to transmit the electric energy on the power battery system 20 to the vehicle power terminal 23, thereby realizing rapid charging of the vehicle.

[0043] Specifically, when the clamp 31 is connected to the frame 40, in order to further improve the clamping force of the clamp 31, a threaded hole can be set at the clamp 312 on the clamp 31, and the clamp 312 and the frame 40 can be connected by bolts; or a magnet can be set at the clamp 312 to adsorb the clamp 312 on the frame 40; or further, an electromagnet can be set at the clamp 312, and when the clamp 312 clamps the frame 40, a signal will be sent to the control system to trigger the electromagnet, so that the electromagnet is energized and adsorbed on the frame 40.

[0044] The on-board quick-change battery assembly provided by the present application can be specifically applied in two scenarios. One is the daily charging of new energy vehicles. The on-board quick-change battery assembly provided by the present application is placed in a specially customized charging station. After the vehicle that needs to be charged arrives at the charging station, the equipment in the charging station will first remove the used on-board quick-change battery assembly inside the vehicle, and replace it with a new on-board quick-change battery assembly in a fully charged state. On the basis of not changing the original battery system design, it supports the separation of the vehicle and the battery, thereby performing battery replacement more quickly and saving charging time. The other application scenario is the scenario where the battery inside the vehicle is damaged or reaches its service life and needs to be replaced. The on-board quick-change battery assembly provided by the present application can quickly replace the power battery system, thereby reducing costs.

[0045] Furthermore, the present application provides a new energy vehicle, including a frame 40 and an on-board quick-change battery assembly, which is detachably connected to the frame 40, thereby realizing the rapid battery replacement function of the new energy vehicle. The specific technical effects can be referred to above and will not be repeated here.

[0046] Furthermore, the present application provides a method for replacing a battery of a new energy vehicle, comprising the following steps:

[0047] S1: The power battery system and the vehicle-mounted quick-change box assembly are fixed on the tray.

[0048] The vehicle-mounted quick-change box assembly provided in the present application is integrated with the power battery system and fixed by a tray to form a vehicle-mounted quick-change battery assembly. The integrated vehicle-mounted quick-change battery assembly is detachably arranged in the vehicle, and the vehicle battery can be replaced by replacing the whole vehicle.

[0049] S2: The high-pressure connection end is connected to the high-pressure connector, the low-pressure connection end is connected to the low-pressure connector, and the water channel integrated end is connected to the water channel joint.

[0050] The vehicle-mounted quick-change box assembly fixed on the pallet is connected to the power battery system. During the connection, the high-voltage connecting end on the vehicle-mounted quick-change box assembly is connected to the high-voltage connector of the power battery system to form a high-voltage circuit, and the low-voltage connecting end on the vehicle-mounted quick-change box assembly is connected to the low-voltage connector on the power battery system to form a low-voltage circuit. At the same time, the water channel integration end on the vehicle-mounted quick-change box assembly is connected to the water channel connector on the power battery system to form a cooling circulation loop.

[0051] S3: the clamping claw clamps the frame of the vehicle;

[0052] The tray is provided with clamping claws, which are connected to the frame of the vehicle through the clamping claws, so that the integrated on-board quick-change battery assembly is connected to the vehicle.

[0053] S4: The quick-change connection end is connected to the power-consuming end of the vehicle.

[0054] After the on-board quick-change battery assembly is connected to the vehicle, the quick-change connection end on the on-board quick-change box assembly is connected to the power end of the vehicle, and the quick-change connection end is connected to the high-voltage connection end and the low-voltage connection end respectively, so that the power battery system is connected to the power end of the vehicle through the on-board quick-change box assembly, and finally the charging process of the vehicle is realized.

[0055] In actual use of this product, usually the vehicle is already equipped with a used on-board quick-change battery assembly. When the battery needs to be replaced, the used on-board quick-change battery assembly is first disassembled. The disassembly process is the opposite of the above process, that is, the quick-change connection end is first detached from the power end of the vehicle, and then the clamp is separated from the vehicle frame, or the tray is separated from the vehicle frame, and the separated on-board quick-change battery assembly is moved out of the vehicle; then the new fully charged on-board quick-change battery assembly is connected to the frame, and finally the quick-change connection end on it is connected to the power end of the vehicle to realize the function of quick battery replacement.

[0056] The battery replacement method for new energy vehicles provided in this application has technical effects similar to those of the above-mentioned on-board quick-change battery assembly, and will not be repeated here.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A vehicle-mounted quick-change box assembly, used to connect a power battery system to a vehicle, characterized in that: include: case; A high-voltage connection end, which is arranged on the housing and is used to connect to a high-voltage connector of the power battery system; A low-voltage connection terminal, which is arranged on the housing and is used to connect to a low-voltage connector of the power battery system; A quick-change connection end, the quick-change connection end is arranged on the shell, the quick-change connection end is used to connect the power end of the vehicle, the high-voltage connection end and the low-voltage connection end are respectively connected to the quick-change connection end; the high-voltage connection end is connected to the high-voltage connector on the quick-change connection end through an internal copper busbar adapter, and the high-voltage connection end is connected to the high-voltage connector of the power battery system through the high-voltage connector to form a high-voltage circuit conduction of the battery system; the low-voltage connection end is connected to the low-voltage connector on the quick-change connection end through an internal wiring harness adapter, and the low-voltage connection end is connected to the low-voltage connector of the power battery system through the low-voltage connector to form a low-voltage circuit conduction of the battery system; A water channel integrated end, the water channel integrated end is arranged on the shell, and the water channel integrated end is used to connect the water channel joint of the power battery system; the water channel integrated end includes a water channel bracket and a pipe assembly, the water channel bracket is arranged on the shell, the pipe assembly is arranged on the water channel bracket, the pipe assembly is connected to the water channel joint of the power battery system, the water channel bracket has an extended cantilever, one end of the cantilever is connected to the shell, and the other end of the cantilever extends in a direction away from the shell; The high-pressure connection end and the low-pressure connection end are respectively arranged on opposite sides of the shell, the quick-change connection end is arranged on the top of the shell, and the waterway integration end is arranged on the side of the shell near the top; The vehicle-mounted quick-change box assembly also includes a base, the shell is arranged on the base, and the base is circumferentially provided with a plurality of clamping ends.

2. The vehicle-mounted quick-change box assembly according to claim 1, characterized in that: A low-pressure joint and a high-pressure joint are respectively provided on the quick-change connection end, the low-pressure joint is connected to the low-pressure connection end, and the high-pressure joint is connected to the high-pressure connection end.

3. The vehicle-mounted quick-change box assembly according to claim 1, characterized in that: The pipeline assembly includes a water inlet pipeline and a water outlet pipeline. The water inlet pipeline is used to communicate with the water inlet pipe of the power battery system, and the water outlet pipeline is used to communicate with the water outlet pipe of the power battery system.

4. The vehicle-mounted quick-change box assembly according to claim 3, characterized in that: The water inlet pipeline and the water outlet pipeline are arranged in parallel in the longitudinal extension direction of the water channel support.

5. The vehicle-mounted quick-change box assembly according to claim 1, characterized in that: The shell is in a cubic structure.

6. A vehicle-mounted quick-change battery assembly, comprising the vehicle-mounted quick-change box assembly according to any one of claims 1 to 5, characterized in that: It also includes a power battery system, which is connected to the vehicle-mounted quick-change box.

7. The vehicle-mounted quick-change battery assembly according to claim 6, characterized in that: It also includes a tray, the power battery system and the vehicle-mounted quick-change box assembly are fixed on the tray, and the tray is provided with clamping claws.

8. The vehicle-mounted quick-change battery assembly according to claim 7, characterized in that: The clamping claw is provided with a magnetic component, and the magnetic component is used for adsorbing the vehicle frame.

9. A new energy vehicle, comprising the vehicle-mounted quick-change battery assembly according to claim 7, characterized in that: Also included is a vehicle frame, and the clamping claws clamp the vehicle frame.

10. A battery replacement method for a new energy vehicle, comprising the new energy vehicle according to claim 9, characterized in that: The following steps are also included: The power battery system and the vehicle-mounted quick-change box assembly are fixed on the tray; The high-pressure connection end is connected to the high-pressure connector, the low-pressure connection end is connected to the low-pressure connector, and the waterway integration end is connected to the waterway connector; The clamping jaws clamp the frame of the vehicle; The quick-change connection end is connected to the power-consuming end of the vehicle.

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