Battery system

Abstract

The utility model relates to the technical field of battery replacement, in particular to a battery system. The battery system comprises a battery assembly and a supporting assembly, wherein the battery assembly comprises a frame unit and a battery pack; the frame unit comprises an upper frame module, a lower frame module and a pressing beam. The pressing beam is arranged in the hollow cavity of the lower frame module; the two ends of the pressing beam are connected with the lower frame module. The supporting assembly comprises a supporting frame unit and a locking unit; the length L1 of the frame unit is greater than the length L2 of the supporting frame unit; the battery system has a locking state; the locking state comprises the steps that the first side of the lower frame module abuts against the supporting frame unit, the first side of the pressing beam abuts against the supporting frame unit, and the locking unit abuts against the second side of the lower frame module and the second side of the pressing beam. Therefore, the problem that the requirement for the adaptability of the battery assembly and the supporting assembly is high is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery swap technical field, specifically, relate to a battery system. BACKGROUND

[0002] In the use process of new energy vehicles, the battery assembly usually needs to be placed on a special support assembly for use or maintenance. The patent document with publication number CN118876690B provides a battery box system. The battery box system includes a battery box assembly, a bottom support assembly, a first locking assembly, and a second locking assembly. The battery box assembly includes a battery box body, an encapsulation frame, a first pressure plate, and a second pressure plate. The first locking assembly and the second locking assembly are arranged on the bottom support assembly. The first locking assembly includes a compression block and a first transmission unit, and the first transmission unit drives the compression block to rotate and lift; the second locking assembly includes a tightening block and a second transmission unit, and the second transmission unit drives the tightening block to lift. In the state that the battery box assembly is locked on the bottom support assembly, the compression block is pressed against the side of the first pressure plate away from the bottom support assembly, and the tightening block is pressed against the side of the second pressure plate facing the bottom support assembly.

[0003] However, the current support assembly design has significant technical limitations, such as specification adaptability issues. There are many size and specification differences in battery assemblies on the market, and traditional support assemblies are usually designed with fixed sizes, resulting in the need for different specifications of support assemblies for different specifications of battery assemblies. This one-to-one correspondence greatly increases the complexity of use and equipment cost. At the same time, the operator needs to frequently replace the support assembly according to the battery specification in actual work, which not only reduces the work efficiency, but also increases the risk of operation errors. Especially in application scenarios that need to handle multiple specifications of batteries at the same time, this problem is particularly prominent. SUMMARY

[0004] To solve the problem of high adaptability requirement of battery assemblies and support assemblies, the utility model provides a battery system, which comprises:

[0005] A battery assembly, which comprises a frame unit, a battery pack; the frame unit comprises an upper frame module, a lower frame module, and a compression beam; the upper frame module is arranged as a hollow frame; the lower frame module is arranged as a hollow frame; the upper frame module and the lower frame module are connected; the battery pack is arranged in the hollow cavity of the upper frame module; the compression beam is arranged in the hollow cavity of the lower frame module; both ends of the compression beam are connected with the lower frame module;

[0006] A support assembly, which comprises a support frame unit and a locking unit; the support frame unit is arranged as a hollow frame; the locking unit is connected with the support frame unit; the length L1 of the frame unit is greater than the length L2 of the support frame unit;

[0007] The battery system comprises a locking state; the locking state comprises that the first side of the lower frame module abuts against the support frame unit, the first side of the compression beam abuts against the support frame unit, and the locking unit abuts against the second side of the lower frame module and the second side of the compression beam.

[0008] In some embodiments, L1 / L2≤1.4.

[0009] In some embodiments, the lower frame module comprises at least two first lower cross beams, at least two second lower cross beams, and a plurality of lower vertical beams; the first lower cross beams are arranged at intervals; one end of the second lower cross beam is connected to one of the first lower cross beams, and the other end is connected to another first lower cross beam; the second lower cross beams are arranged at intervals; one end of the lower vertical beam is connected to the first lower cross beam, and the other end is connected to the upper frame module; the lower vertical beams are arranged at intervals; one end of the compression beam is connected to one of the first lower cross beams, and the other end is connected to another first lower cross beam; the compression beam is arranged between the two second lower cross beams.

[0010] The locking state comprises that the first lower cross beam abuts against the support frame unit, and the locking unit abuts against the first lower cross beam; the locking unit abuts against the compression beam.

[0011] In some embodiments, the strength of the compression beam is greater than that of the second lower cross beam.

[0012] In some embodiments, the support assembly further comprises a plurality of guide units; one end of the guide unit is connected to the support frame unit, and the other end extends away from the support frame unit;

[0013] The locking state further comprises that the guide unit abuts against the first lower cross beam, and the guide unit abuts against the compression beam.

[0014] In some embodiments, the locking unit comprises a driving part, a connecting part, and a lock tongue; the locking unit is connected to the support frame unit through a guide unit; the driving part is fixedly connected to the connecting part; the connecting part is detachably connected to the guide unit; the connecting part is movably connected to the lock tongue; the driving part is electrically connected to the lock tongue.

[0015] The locking state further comprises that the first lower cross beam abuts against the lock tongue, and the lock tongue abuts against the compression beam.

[0016] In some embodiments, the guiding unit comprises a first guiding module; the first guiding module comprises a first guiding column and a first guiding part; the first guiding column is connected with the first lower cross beam; the first guiding column is connected with the pressing beam; the first guiding column extends in a direction close to the lower frame module; the first guiding column is detachably connected with the connecting part; the first guiding column is movably connected with the lock tongue; the first guiding column is fixedly connected with the first guiding part; the radial area of the first guiding part gradually decreases along an end away from the first guiding column.

[0017] The locking state further comprises that the first lower cross beam abuts against the first guiding column.

[0018] In some embodiments, the guiding unit further comprises a second guiding module; the second guiding module comprises a second guiding column and a second guiding part; the second guiding column is connected with the first lower cross beam; the second guiding column is connected with the pressing beam; the second guiding column extends in a direction close to the lower frame module; the second guiding column is fixedly connected with the first guiding part; the radial area of the second guiding part gradually decreases along an end away from the first guiding column; the maximum distance between the first guiding part and the support frame unit is greater than the maximum distance between the second guiding part and the support frame unit.

[0019] The locking state further comprises that the first lower cross beam abuts against the first guiding column.

[0020] In some embodiments, the battery assembly further comprises an upper connector and a control box; the upper connector is snap-connected with the pressing beam; the control box is detachably connected with the lower frame module; the upper connector is electrically connected with the control box.

[0021] In some embodiments, the support assembly further comprises a lower connector and a floating unit; the lower connector is snap-connected with the support frame unit;

[0022] The locking state further comprises that the lower connector is snap-connected and electrically connected with the upper connector; one end of the floating unit is connected with the support frame unit, and the other end is connected with the guiding unit.

[0023] To solve the problem that the adaptability of the battery assembly and the support assembly is high, the utility model has the following advantages:

[0024] When the system is in the locked state, the first side of the lower frame module abuts against the support frame unit, the first side of the pressing beam abuts against the support frame unit at the same time, and the locking unit abuts against the second side of the lower frame module and the second side of the pressing beam at the same time. The structure utilizes the contact surface of the pressing beam and the support frame unit to form multi-point rigid support, and cooperates with the synchronous constraint of the locking unit on the lower frame module and the pressing beam, so that the support assembly can adapt to battery assemblies of different sizes without changing its own specifications. This scheme eliminates the need to frequently replace the support assembly due to the size difference of the battery assembly in the traditional system, so that a single specification support assembly can cover the installation needs of multiple battery assemblies. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A battery system schematic diagram of the first embodiment is shown.

[0026] Figure 2 A battery system schematic diagram of the second embodiment is shown.

[0027] Figure 3 A battery system schematic diagram of the third embodiment is shown.

[0028] Figure 4 A battery system schematic diagram of the fourth embodiment is shown.

[0029] Figure 5 A partial schematic diagram of the battery system of the first embodiment is shown.

[0030] Figure 6 A partial schematic diagram of the battery system of the second embodiment is shown.

[0031] Figure 7 A support assembly schematic diagram of the battery system of an embodiment is shown.

[0032] Reference signs: 01 battery assembly; 11 frame unit; 111 upper frame module; 1111 first upper cross beam; 1112 second upper cross beam; 1113 first upper vertical beam; 1114 second upper vertical beam; 112 lower frame module; 1121 first lower cross beam; 1122 second lower cross beam; 1123 lower vertical beam; 113 pressing beam; 12 control box; 02 support assembly; 21 support frame unit; 211 first support beam; 212 second support beam; 22 guide unit; 221 first guide module; 2211 first guide column; 2212 first guide part; 222 second guide module; 2221 second guide column; 2222 second guide part; 23 locking unit; 231 driving part; 232 connecting part; 233 locking tongue. DETAILED DESCRIPTION

[0033] The present disclosure will now be discussed with reference to a number of exemplary embodiments. It is to be appreciated that these embodiments are discussed solely for the purpose of enabling a better understanding of and, therefore, the best mode for implementing the present disclosure, and are not intended to suggest any limitation as to the scope of the present disclosure.

[0034] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, are to be construed as "including but not limited to." The term "based on" is to be construed as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment." The term "another embodiment" is to be construed as "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and similar terms are used for orientation or position relationships based on the orientation or position relationships shown in the drawings. These terms are primarily used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a particular orientation, or to be constructed and operated in a particular orientation. Also, in addition to indicating orientation or position relationships, some of the above terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances. In addition, the terms "mounting", "providing", "provided with", "connecting", "connected" should be interpreted broadly. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are primarily used to distinguish different devices, elements or components (the specific types and configurations can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0035] In the embodiment, in the conventional battery system, the battery assembly 01 and the matching structure of the support assembly 02 have the problem of insufficient adaptability. Since the length L1 of the frame unit 11 of the battery assembly 01 needs to form a specific proportional relationship with the length L2 of the support frame unit 21 of the support assembly 02, when the battery assembly 01 needs to be adjusted in size due to changes in application scenarios, the support frame unit 21 must change the length L2 synchronously to maintain effective cooperation. However, the support frame unit 21 and the locking unit 23 adopt a fixed connection structure, and the overall length L2 cannot be dynamically adjusted with the length L1 of the frame unit 11, resulting in that different specifications of the battery assembly 01 must match the corresponding size of the support assembly 02. As shown in Figure 2 The embodiment discloses a battery system, which comprises a battery assembly 01 and a support assembly 02. The battery assembly 01 can comprise a frame unit 11, a battery pack; the frame unit 11 can comprise an upper frame module 111, a lower frame module 112, and a compression beam 113; the upper frame module 111 can be arranged as a hollow frame; the lower frame module 112 can be arranged as a hollow frame; the upper frame module 111 and the lower frame module 112 can be connected; the battery pack can be arranged in the hollow cavity of the upper frame module 111; the compression beam 113 can be arranged in the hollow cavity of the lower frame module 112; both ends of the compression beam 113 can be connected with the lower frame module 112; the support assembly 02 can comprise a support frame unit 21 and a locking unit 23; the support frame unit 21 can be arranged as a hollow frame; the locking unit 23 can be connected with the support frame unit 21; the length L1 of the frame unit 11 can be greater than the length L2 of the support frame unit 21; the battery system can comprise a locked state; the locked state can comprise that the first side of the lower frame module 112 abuts against the support frame unit 21, the first side of the compression beam 113 abuts against the support frame unit 21, and the locking unit 23 can abut against the second side of the lower frame module 112 and the second side of the compression beam 113. By arranging the compression beam 113 on the battery assembly 01, the abutment of the compression beam 113 and the support assembly 02 can adapt the support assembly 02 to different specifications of the battery assembly 01.

[0036] In the embodiment, as shown in Figure 2 L1 / L2≤1.4, so as to ensure that the compression beam 113 abuts against the support frame unit 21, and at the same time, through the limitation of the length ratio, the structural strength of the support frame unit 21 and the support part of the battery assembly 01 is enhanced, solving the problem of insufficient structural strength.

[0037] In the embodiment, as shown in Figure 1 The lower frame module 112 can comprise at least two first lower cross beams 1121, at least two second lower cross beams 1122, and a plurality of lower vertical beams 1123; as shown in Figure 6As shown, the first lower cross beams 1121 can be arranged at intervals; one end of the second lower cross beam 1122 can be connected with one of the first lower cross beams 1121, and the other end can be connected with another first lower cross beam 1121; the second lower cross beams 1122 can be arranged at intervals; one end of the lower vertical beams 1123 can be connected with the first lower cross beams 1121, and the other end can be connected with the upper frame module 111; the lower vertical beams 1123 can be arranged at intervals; one end of the compression beam 113 can be connected with one of the first lower cross beams 1121, and the other end can be connected with another first lower cross beam 1121; the compression beam 113 can be arranged between two second lower cross beams 1122; the locked state can include that the first lower cross beams 1121 abut against the support frame unit 21, and the locking unit 23 abuts against the first lower cross beams 1121; the locking unit 23 can abut against the compression beam 113. The connection design of the first lower cross beams 1121, the second lower cross beams 1122 and the lower vertical beams 1123 can enhance the structural strength of the lower frame module 112, while ensuring the contact stability when the lower frame module 112 cooperates with the support unit. The structure arranged at intervals can disperse stress and improve overall rigidity, solving the problems of low structural strength or unstable cooperation of the traditional frame structure. In other embodiments, the upper frame module 111 can include at least four first upper cross beams 1111, at least four second upper cross beams 1112, a plurality of first upper vertical beams 1113 and a plurality of second upper vertical beams 1114; as Figure 5 As shown, the first upper cross beams 1111 can be arranged at intervals; one end of the second upper cross beam 1112 can be connected with one of the first upper cross beams 1111, and the other end can be connected with another first upper cross beam 1111; the second upper cross beams 1112 can be arranged at intervals; one end of the first upper vertical beam 1113 can be connected with one of the first upper cross beams 1111, and the other end can be connected with another first upper cross beam 1111; as Figure 3 As shown, one end of the second upper vertical beam 1114 can be connected with one of the second upper cross beams 1112, and the other end can be connected with another second upper cross beam 1112; the second upper cross beams 1112 can be arranged perpendicular to the first upper vertical beams 1113.

[0038] In this embodiment, the strength of the compression beam 113 can be greater than that of the second lower cross beam 1122. Since the compression beam 113 needs to abut against the support frame unit 21, the strength of the compression beam 113 greater than that of the second lower cross beam 1122 can achieve the improvement of the structural strength between the lower frame module 112 and the support frame unit 21. The compression beam 113 with high strength is not easy to deform when bearing greater contact load, thereby enhancing the reliability of the connection between the two, and finally solving the problem of support failure caused by insufficient strength of the compression beam 113.

[0039] In this embodiment, as Figure 7As shown, the support assembly 02 can further include a plurality of guide units 22; one end of the guide unit 22 can be connected with the support frame unit 21, and the other end can extend away from the support frame unit 21; the locked state can further include that the guide unit 22 abuts against the first lower cross beam 1121, and the guide unit 22 abuts against the pressing beam 113. The guide unit 22 guides the movement path of the lower frame module 112 relative to the support frame unit 21 through the extension structure, preventing the lower frame module 112 from being skewed during the locking process. The abutment of the guide unit 22 with the first lower cross beam 1121 and the pressing beam 113 restricts the movement direction, reduces the risk of structural failure caused by contact position deviation, and finally realizes stable assembly. In some other embodiments, the support frame unit 21 can include at least two first support beams 211 and at least two second support beams 212; the first support beams 211 can be arranged at intervals; one end of the second support beam 212 can be connected with one of the first support beams 211, and the other end can be connected with another first support beam 211; the second support beams 212 can be arranged at intervals.

[0040] In this embodiment, the locking unit 23 can include a driving part 231, a connecting part 232 and a lock tongue 233; the locking unit 23 can be connected with the support frame unit 21 through the guide unit 22; the driving part 231 can be fixedly connected with the connecting part 232; the connecting part 232 can be detachably connected with the guide unit 22; the connecting part 232 can be movably connected with the lock tongue 233; the driving part 231 can be electrically connected with the lock tongue 233; the locked state can further include that the first lower cross beam 1121 abuts against the lock tongue 233, and the lock tongue 233 can abut against the pressing beam 113. The locking unit 23 controls the movement of the lock tongue 233 through the driving part 231 to limit the relative displacement of the lower frame module 112 and the support frame unit 21. The electrical connection of the driving part 231 and the lock tongue 233 can realize the automatic locking function of the control system, and the cooperative action of the movably connected lock tongue 233 and the abutment structure can resist displacement during vibration or transportation, achieving the effect of preventing loosening.

[0041] In the embodiment, the guide unit 22 can include a first guide module 221; the first guide module 221 can include a first guide column 2211 and a first guide portion 2212; the first guide column 2211 can be connected with the first lower cross beam 1121; the first guide column 2211 can be connected with the pressing beam 113; the first guide column 2211 can extend in a direction close to the lower frame module 112; the first guide column 2211 can be detachably connected with the connecting portion 232; the first guide column 2211 can be movably connected with the lock tongue 233; the first guide column 2211 can be fixedly connected with the first guide portion 2212; the radial area of the first guide portion 2212 can gradually decrease away from one end of the first guide column 2211; the locked state can further include that the first lower cross beam 1121 is in abutment with the first guide column 2211. The first guide module 221 connects the locking unit 23 and the lower frame module 112 through the first guide column 2211, and the extension direction cooperates with the guide portion with gradually decreasing radial area, so as to accurately guide the moving path of the lower frame module 112. The abutted guide column and the lock tongue 233 jointly constrain the displacement of the lower frame module 112, prevent the lower frame module 112 from deviating during the locking process, enhance the assembly precision, and solve the difficult positioning problem of the traditional guide device.

[0042] In the embodiment, the guide unit 22 can further include a second guide module 222; the second guide module 222 can include a second guide column 2221 and a second guide portion 2222; the second guide column 2221 can be connected with the first lower cross beam 1121; the second guide column 2221 can be connected with the pressing beam 113; the second guide column 2221 can extend in a direction close to the lower frame module 112; the second guide column 2221 can be fixedly connected with the first guide portion 2212; the radial area of the second guide portion 2222 can gradually decrease away from one end of the first guide column 2211; the maximum distance between the first guide portion 2212 and the support frame unit 21 can be greater than the maximum distance between the second guide portion 2222 and the support frame unit 21; the locked state can further include that the first lower cross beam 1121 is in abutment with the first guide column 2211. The second guide module 222 is designed through the second guide column 2221 and the guide portion with gradually decreasing radial area, and forms a multi-stage guide structure with the first guide module 221, so as to limit the deviation amount of the lower frame module 112 in stages during the downward movement of the lower frame module 112. The cooperation of the two further improves the guide accuracy, especially the stability in a long stroke, and solves the problem of insufficient coverage of a single guide module.

[0043] In the embodiment, the battery assembly 01 can further include an upper connector and a control box 12; the upper connector can be connected with the pressing beam 113 by clamping; the control box 12 can be detachably connected with the lower frame module 112; and the upper connector can be electrically connected with the control box 12. The upper connector can be quickly connected with external equipment by clamping, and the detachable connection between the control box 12 and the lower frame module 112 facilitates maintenance. The electrical connection between the two realizes the transmission of internal system of the battery assembly 01 and external control signals, improves the integration and operation convenience, and solves the defects of complex or difficult maintenance of the traditional connection mode.

[0044] In the embodiment, the support assembly 02 can further include a lower connector and a floating unit; the lower connector can be connected with the support frame unit 21 by clamping; the locked state can further include that the lower connector is connected with the upper connector by clamping and electrical connection; one end of the floating unit can be connected with the support frame unit 21, and the other end can be connected with the guide unit 22. The clamping connection of the lower connector forms a current path, ensuring the safety and stability of the charging and discharging process. The floating unit provides a moving space for the guide unit 22, compensates for assembly errors or temperature deformation, thereby improving the reliability of the clamping connection, and solving the problem that the traditional rigid connection is easy to cause connection failure.

[0045] Those skilled in the art can understand that the above-mentioned embodiments are specific cases for realizing the present disclosure, and in actual application, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A battery system characterized by, The battery system comprises: a battery assembly, the battery assembly comprising a frame unit, a battery pack; the frame unit comprising an upper frame module, a lower frame module, a compression beam; the upper frame module is arranged as a hollow frame; the lower frame module is arranged as a hollow frame; the upper frame module and the lower frame module are connected; the battery pack is arranged in the hollow cavity of the upper frame module; the compression beam is arranged in the hollow cavity of the lower frame module; both ends of the compression beam are connected with the lower frame module; a support assembly, the support assembly comprising a support frame unit, a locking unit; the support frame unit is arranged as a hollow frame; the locking unit is connected with the support frame unit; the length L1 of the frame unit is greater than the length L2 of the support frame unit; The battery system comprises a locking state; the locking state comprises the first side of the lower frame module abutting against the support frame unit, the first side of the compression beam abutting against the support frame unit, and the locking unit abutting against the second side of the lower frame module and the second side of the compression beam.

2. The battery system according to claim 1, wherein L1 / L2≤1.

4.

3. The battery system according to claim 1, wherein the lower frame module comprises at least two first lower cross beams, at least two second lower cross beams, and a plurality of lower vertical beams; the first lower cross beams are arranged at intervals; one end of the second lower cross beam is connected with one of the first lower cross beams, and the other end is connected with another first lower cross beam; the second lower cross beams are arranged at intervals; one end of the lower vertical beam is connected with the first lower cross beam, and the other end is connected with the upper frame module; the lower vertical beams are arranged at intervals; one end of the compression beam is connected with one of the first lower cross beams, and the other end is connected with another first lower cross beam; the compression beam is arranged between the two second lower cross beams; the locking state comprises the first lower cross beam abutting against the support frame unit, and the locking unit abutting against the first lower cross beam; the locking unit abuts against the compression beam.

4. The battery system according to claim 3, wherein the strength of the compression beam is greater than the strength of the second lower cross beam.

5. The battery system according to claim 3, wherein the support assembly further comprises a plurality of guide units; one end of the guide unit is connected with the support frame unit, and the other end extends away from the support frame unit; the locking state further comprises the guide unit abutting against the first lower cross beam, and the guide unit abutting against the compression beam.

6. The battery system according to claim 1, wherein the locking unit comprises a driving part, a connecting part, and a lock tongue; the locking unit is connected with the support frame unit through a guide unit; the driving part is fixedly connected with the connecting part; the connecting part is detachably connected with the guide unit; the connecting part is movably connected with the lock tongue; the driving part is electrically connected with the lock tongue; the locking state further comprises the first lower cross beam abutting against the lock tongue, and the lock tongue abutting against the compression beam.

7. The battery system of claim 6, wherein, the guide unit comprises a first guide module; the first guide module comprises a first guide column and a first guide part; the first guide column is connected with the first lower cross beam; the first guide column is connected with the pressing beam; the first guide column extends in a direction close to the lower frame module; the first guide column is detachably connected with the connecting part; the first guide column is movably connected with the lock tongue; the first guide column is fixedly connected with the first guide part; the radial area of the first guide part gradually decreases along an end away from the first guide column; the locked state further comprises that the first lower cross beam abuts against the first guide column.

8. The battery system of claim 7, wherein, the guide unit further comprises a second guide module; the second guide module comprises a second guide column and a second guide part; the second guide column is connected with the first lower cross beam; the second guide column is connected with the pressing beam; the second guide column extends in a direction close to the lower frame module; the second guide column is fixedly connected with the first guide part; the radial area of the second guide part gradually decreases along an end away from the first guide column; the maximum distance between the first guide part and the support frame unit is greater than the maximum distance between the second guide part and the support frame unit; the locked state further comprises that the first lower cross beam abuts against the first guide column.

9. The battery system of claim 1, wherein, the battery assembly further comprises an upper connector and a control box; the upper connector is snap-connected with the pressing beam; the control box is detachably connected with the lower frame module; the upper connector is electrically connected with the control box.

10. The battery system of claim 9, wherein, the support assembly further comprises a lower connector and a floating unit; the lower connector is snap-connected with the support frame unit; the locked state further comprises that the lower connector is snap-connected and electrically connected with the upper connector; one end of the floating unit is connected with the support frame unit, and the other end is connected with the guide unit.

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