Battery pack, charging station and control method of battery pack

Abstract

The application discloses a battery pack, a battery swap station and a control method of the battery pack, which comprises a shell, a plurality of installation spaces are formed in the shell, a plurality of battery units are installed in the plurality of installation spaces one by one, and each battery unit is separately detachable relative to the shell; and a battery management module is used for detecting the operating state of the plurality of battery units. According to the battery pack of the embodiment of the application, the battery pack is composed of a plurality of battery units, and each battery unit is separately installed in the installation space formed in the shell, and the battery unit is controlled to slide out of the installation space to realize the battery swap process. The battery pack can accurately identify the residual capacity of the battery unit through the battery management module, and is matched with the battery swap station end to complete the replacement of the battery unit with low capacity, so that the entire battery pack needs not to be replaced during the battery swap, the operation difficulty is reduced, the battery swap efficiency and the service and operation efficiency of the battery swap station are improved.

Description

Battery pack, charging station and control method of battery pack Technical Field

[0001] This invention relates to the field of power battery technology, and in particular to a battery pack, a control method for the battery pack, and a battery swapping station. Background Technology

[0002] With the development of electric vehicles, the speed and effectiveness of battery pack replacement will directly impact the user experience. Currently, most battery swapping stations replace the entire battery pack, resulting in many battery cells having insufficient charge. Furthermore, the power battery packs of existing new energy vehicles are sealed in a fixed manner, making it generally impossible to replace individual battery cells without specialized tools and technical expertise. Therefore, replacing the entire battery pack is a complex and inefficient method. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide a battery pack and battery swapping station to solve the problem of partial battery cell replacement, thereby accelerating battery swapping efficiency.

[0004] According to an embodiment of the present invention, a battery pack includes: a housing having a plurality of mounting spaces formed therein; a plurality of battery cells, wherein the plurality of battery cells are mounted one-to-one in the plurality of mounting spaces, and each of the battery cells is individually detachable relative to the housing; and a battery management module for detecting the operating status of the plurality of battery cells.

[0005] According to an embodiment of the present invention, the battery pack consists of multiple battery cells, each of which is individually installed within an installation space formed by the housing. The battery swapping process is achieved by controlling the battery cells to slide out of the installation space. The battery pack can accurately identify the remaining charge of the battery cells through a battery management module and cooperate with the battery swapping station to replace the low-charge battery cells. This avoids the need to replace the entire battery pack during swapping, reduces operational complexity, improves swapping efficiency, enhances the service and operational efficiency of the battery swapping station, and improves the owner's experience.

[0006] According to an embodiment of the present invention, the battery pack has a battery swapping door, which is movably installed in the housing and is adapted to move to a position corresponding to any one of the battery cells.

[0007] According to an embodiment of the present invention, the battery pack includes a housing and a cover plate, the housing having an open side, the cover plate being connected to the housing to close the open side, and the battery swapping door being slidably mounted on the cover plate.

[0008] According to an embodiment of the present invention, the mounting space is distributed in two groups within the housing, and the two groups of mounting spaces are respectively formed with open mounting ports on different sides of the housing. The battery unit is adapted to be inserted into or removed from the mounting space from the mounting port.

[0009] According to an embodiment of the present invention, the battery management module includes a backbone conductive structure and a plurality of connectors. The backbone conductive structure is installed inside the housing and is used for electrical connection with the control module. The plurality of connectors are connected to the plurality of battery cells one by one and are all electrically connected to the backbone conductive structure.

[0010] According to an embodiment of the present invention, the mounting spaces are distributed in two groups within the housing, the backbone conductive structure is installed between the two groups of mounting spaces, and the connectors corresponding to the battery cells in the two groups of mounting spaces are respectively connected to both sides of the backbone conductive structure.

[0011] The battery pack according to an embodiment of the present invention further includes a lifting mechanism, which is connected to the housing and is used to drive the housing to lift.

[0012] According to an embodiment of the present invention, the battery pack has multiple lifting mechanisms, which are spaced apart in the circumferential direction of the housing and are adapted to operate synchronously.

[0013] According to an embodiment of the present invention, the battery unit is provided with a pull ring, and the pull ring is located at one end of the battery unit corresponding to the open side of the mounting space.

[0014] According to an embodiment of the present invention, the plurality of mounting spaces are honeycomb-shaped distributed within the housing.

[0015] This invention also proposes a battery swapping station.

[0016] According to an embodiment of the present invention, a battery swapping station includes: a charging device having a plurality of charging spaces formed therein, the plurality of charging spaces being used to accommodate a plurality of battery cells in a one-to-one correspondence, and the charging device being adapted to be detachably connected to the battery cells located in each of the charging spaces, the charging device being electrically connected to the battery cells.

[0017] According to an embodiment of the present invention, in a battery swapping station, the plurality of charging spaces are distributed in a honeycomb pattern within the charging equipment.

[0018] The present invention also proposes a method for controlling a battery pack.

[0019] According to an embodiment of the present invention, a control method for a battery pack is applicable to any of the above-described battery packs, and the control method includes: acquiring the operating state of each battery cell; generating a battery swapping scheme after the operating state of any battery cell meets the battery swapping conditions; and controlling the battery cell that meets the battery swapping conditions to perform a battery swapping operation individually relative to the housing according to the battery swapping scheme.

[0020] According to the battery pack control method of the present invention, the generation of the battery swapping scheme includes: analyzing the power value of the battery cell and analyzing the number of battery swaps of the battery cell; when the power value is less than a set power value and the number of battery swaps is less than a set number, sending a signal to prioritize battery swapping of the corresponding battery cell.

[0021] The battery pack control method according to an embodiment of the present invention further includes: after generating the battery swapping scheme, controlling the battery pack to switch from a working state to a battery swapping state; and after completing the battery swapping operation, controlling the battery pack to switch from the battery swapping state to the working state.

[0022] According to the battery pack control method of the present invention, controlling the battery pack to switch from a working state to a battery swapping state includes controlling the housing to descend from a working position to a battery swapping position; and controlling the battery pack to switch from the battery swapping state to the working state includes controlling the housing to rise from the battery swapping position to the working position.

[0023] According to the battery pack control method of the present invention, the step of controlling the battery pack to switch from the working state to the battery swapping state includes: controlling the battery swapping door on the housing to move to a position corresponding to a battery cell that meets the battery swapping conditions.

[0024] The control method of the battery pack and the battery pack described in any one of the above-mentioned methods have the same advantages as the prior art, and will not be repeated here.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 is a schematic diagram of the structure of a battery pack according to an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the housing frame structure of the battery pack according to an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the structure after the cover plate is installed on the housing according to an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of the initial position structure of the lifting mechanism according to an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of the lifting mechanism after it has been lowered according to an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of the lifting mechanism after it is installed in the housing according to an embodiment of the present invention;

[0033] Figure 7 is a schematic diagram of another installation space according to an embodiment of the present invention;

[0034] Figure 8 is a schematic diagram of the structure of a charging device according to an embodiment of the present invention;

[0035] Figure 9 is a schematic diagram of the installation of the battery cell and the charging space according to an embodiment of the present invention;

[0036] Figure 10 is a schematic diagram of the execution logic of the control method according to an embodiment of the present invention.

[0037] Figure label:

[0038] Battery pack 100,

[0039] Shell 1, outer shell 11, end plate 111, crossbeam 112, longitudinal beam 113, baffle 114, top plate 115, bottom plate 116

[0040] Cover plate 12, power switch plate 122,

[0041] Installation space A, installation port A1, battery swapping door opening B, connection channel C.

[0042] Battery unit 2, pull ring 21, battery management module 3, backbone conductive structure 31, connector 32, lifting mechanism 4.

[0043] Charging device 201, mounting cavity 202, charging space 203, chassis frame 300. Detailed Implementation

[0044] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0045] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0046] The battery pack 100 according to an embodiment of the present invention is described below with reference to Figures 1-10, including: a housing 1, a plurality of battery cells 2, and a battery management module 3. It should be noted that, as shown in Figure 2, the housing 1 includes a top plate, a bottom plate, end plates 111, and a plurality of crossbeams 112 and longitudinal beams 113. Two end plates 111 are connected to the top plate and the bottom plate on both sides in the X direction. The plurality of crossbeams 112 and longitudinal beams 113 are interlaced to form a frame structure, thereby defining a plurality of installation spaces A of the same size, which can be adapted to the battery cells 2. Adjacent installation spaces A are provided with baffles 114 along their sides close to each other, while ensuring that the spacing between adjacent baffles 114 along the length of the housing 1 is the same. Each installation space A also has an opening on its Y-direction side.

[0047] Specifically, multiple limiting plates are arranged along the width direction of the housing 1, forming multiple rows of spaced baffles 114 inside the housing 1, and a connecting channel C extending through the length direction of the housing 1 is constructed between the two installation spaces A along the width direction. Two adjacent baffles 114 distributed along the width direction of the housing 1 are positioned facing each other, so that two adjacent installation spaces A along the width direction of the housing 1 are also positioned facing each other. Therefore, when the battery unit 2 is installed, the battery pack 100 is subjected to uniform force, thereby improving stability. Furthermore, when the battery unit 2 is embedded in the installation space A, the baffles 114 on both sides, the crossbeams 112 around the installation space A, and the longitudinal beams 113 abut against the perimeter of the battery unit 2, thus limiting and fixing the battery unit 2 and protecting it.

[0048] Therefore, in actual installation, multiple battery units 2 can be installed one-to-one within multiple installation spaces A, and each battery unit 2 is individually detachable relative to the housing 1. That is, one battery unit 2 corresponds to one installation space A to isolate the battery units 2, thus preventing collisions between two battery units 2 that could lead to thermal runaway and explosion. Simultaneously, each battery unit 2 can be detachably connected to the installation space A, allowing each battery unit 2 to slide Y-axis within the installation space A and slide out through the open end of the installation space A, thereby achieving the battery swapping effect. It can be understood that through the above process, the overall charge of the battery pack 100 can be restored by replacing some of the low-charge battery units 2 within the battery pack 100, thus solving the complexity of replacing the entire battery pack 100, reducing the difficulty of battery swapping, and improving battery swapping efficiency.

[0049] Furthermore, the battery management module 3 of the battery pack 100 is used to detect the operating status of multiple battery cells 2. It is understood that the battery management module 3, located in the vehicle, enables information exchange between the vehicle and the battery swapping station. Specifically, the battery management module 3 can accurately identify the energy state of multiple battery cells 2 within the battery pack 100, and statistically analyze these cells to determine the exact location of the battery cell 2 requiring replacement. This location information is then sent to the battery swapping station, allowing the station to control a robotic arm to replace the battery cell 2, thereby improving the intelligence of battery swapping and significantly enhancing the service and operational efficiency of the battery swapping station.

[0050] According to an embodiment of the present invention, the battery pack 100 is composed of multiple battery units 2, and each battery unit 2 is individually installed in the installation space A formed by the housing 1. The battery swapping process is realized by controlling the battery unit 2 to slide out of the installation space A. The battery pack 100 can accurately identify the remaining power of the battery unit 2 through the battery management module 3 and coordinate with the battery swapping station to complete the replacement of the battery unit 2 with low power. This avoids the need to replace the entire battery pack 100 during battery swapping, reduces operational difficulty, improves battery swapping efficiency and the service and operational efficiency of the battery swapping station, and enhances the owner's experience.

[0051] In some embodiments, the housing 1 is provided with a battery swapping opening B, which is movably installed in the housing 1 and adapted to move to a position corresponding to any one of the battery cells 2. It should be noted that the battery swapping opening B is located on both sides of the housing 1 in the Y direction. The battery swapping opening B has a square opening, the area of ​​which is slightly larger than the end area of ​​the battery cell 2, allowing the battery cell 2 to pass through. Furthermore, the battery swapping opening B is movable along the length of the housing 1, allowing it to be directly aligned with any one of the battery cells 2 spaced apart along the length of the housing 1, thereby ensuring that both the battery cell 2 to be swapped and the battery cell 2 to be installed can slide out or into the battery swapping opening B, thus realizing the battery swapping process.

[0052] Furthermore, a battery swapping door panel 122 is installed on the battery swapping door opening B, and the battery swapping door panel 122 is the same size as the battery swapping door opening B. In actual installation, the battery swapping door panel 122 can be connected to the battery swapping door opening B by folding or sliding. When battery swapping is not required, the battery swapping door panel 122 is locked to the battery swapping door opening B, restricting the movement of the battery unit 2. When battery swapping is required, the battery swapping door panel 122 is opened, allowing the battery unit 2 to complete the battery swapping operation through the battery swapping door opening B.

[0053] In some embodiments, the housing 1 includes an outer shell 11 and a cover plate 12. The outer shell 11 has an open side, and the cover plate 12 is connected to the outer shell 11 to close the open side. The battery swapping door B is slidably mounted on the cover plate 12. It should be noted that, as shown in FIG1, the outer shell 11 is constructed as a frame structure, such that both Y-direction sides of the outer shell 11 are open sides. The housing 1 is provided with two cover plates 12, each of which is constructed as a rectangular plate, and the size of the cover plate 12 is consistent with the size of the open side. The two cover plates 12 are respectively attached to the two open sides to close them. Furthermore, the cover plate 12 is provided with a sliding track along its length, and the battery swapping door B is mounted on the sliding track, allowing the battery swapping door B to reciprocate on the sliding track.

[0054] Understandably, connecting the cover plate 12 to the open side of the outer casing 11 prevents the battery unit 2 from falling out of the mounting space A, thus limiting the movement of the battery unit 2 and protecting it. The battery swapping door B, which reciprocates on the cover plate 12, ensures that it is positioned directly opposite the battery unit 2 to be replaced, facilitating its replacement. Battery units 2 that do not require replacement are covered by the cover plate 12 to prevent them from falling out.

[0055] In some embodiments, the mounting spaces A are distributed in two sets within the housing 1, and the two sets of mounting spaces A each have an open mounting opening A1 on different sides of the housing 1. The battery unit 2 is adapted to be inserted into or removed from the mounting space A through the mounting opening A1. That is, in this embodiment, the housing 1 has two rows of spaced-apart mounting spaces A along its width direction, and the end face of each row of mounting spaces A coincides with the open side of the housing 1, so that the side of the mounting space A that is the same as the open side of the housing 1 has a mounting opening A1, which is the open opening mentioned above. Thus, multiple battery units 2 can be installed one-to-one in multiple mounting spaces A to form two rows of battery units 2. Each row of battery units 2 can be aligned with the movable battery swapping door B through the mounting opening A1, so that the battery unit 2 passes through the mounting opening A1 and the battery swapping door B in sequence, thereby leaving the mounting space A to exchange with a new battery unit 2.

[0056] In some embodiments, the battery management module 3 includes a backbone conductive structure 31 and a plurality of connectors 32. The plurality of connectors 32 are connected one-to-one to a plurality of battery cells 2 and are all electrically connected to the backbone conductive structure 31. That is, as shown in FIG2, the backbone conductive structure 31 is constructed as a strip and installed within the housing 1, and a plurality of connectors 32 are provided on the backbone conductive structure 31, connecting the plurality of connectors 32 to the plurality of battery cells 2 respectively, thereby realizing the connection between the backbone conductive structure 31 and the battery cells 2.

[0057] The backbone conductive structure 31 is electrically connected to the control module in the vehicle, enabling it to supply power to the battery cells 2 through the control module. Simultaneously, it can detect the charge level of the battery cells 2 and identify the number of cells with low remaining charge. Thus, by monitoring the battery cell status through the control module, it can better coordinate with the battery swapping station to complete the battery swapping operation for specific battery cells 2.

[0058] In some embodiments, the mounting spaces A are distributed in two sets within the housing 1, and the backbone conductive structure 31 is installed between the two sets of mounting spaces A. The connectors 32 corresponding to the battery cells 2 in the two sets of mounting spaces A are respectively connected to both sides of the backbone conductive structure 31. That is, as shown in FIG2, two sets of mounting spaces A are provided within the housing 1, thereby forming two rows of spaced battery cells 2, and a connection channel C is formed between the two rows of battery cells 2.

[0059] Specifically, the backbone conductive structure 31 is installed along the X direction of the housing 1 in the connection channel C formed between the battery units 2 on both sides, and multiple connectors 32 are provided on the sides of the backbone conductive structure 31 facing the battery units 2 on both sides. Each connector 32 is connected to one battery unit 2, so that each battery unit 2 is independently connected to the backbone conductive structure 31, thereby facilitating the detection of the specific power status of each battery unit 2.

[0060] In some embodiments, a lifting mechanism 4 is also included. The lifting mechanism 4 is connected to the housing 1 and is used to drive the housing 1 to rise and fall. That is, as shown in Figures 4 and 5, when the battery pack 100 does not need to be swapped, the lifting mechanism 4 is locked to the vehicle chassis frame 300, so that the battery pack 100 housing 1 is fixed to the vehicle, ensuring the normal operation of the vehicle. When the battery pack 100 needs to be swapped, the lifting mechanism 4 is unlocked, and then the lifting mechanism 4 is lowered to lower the battery pack 100 housing 1. When the top of the battery pack 100 is lower than the vehicle chassis frame 300, the lifting mechanism 4 is locked, and then the battery swapping gate B slides on the sliding guide rail, so that the battery unit 2 to be swapped can slide out from the battery swapping gate B to complete the battery swapping process.

[0061] It is understandable that the lifting mechanism 4 is used to lift and lower the battery pack 100. When battery swapping is not required, the vehicle chassis frame 300 can be used to protect the battery pack 100. When battery swapping is required, the height of the battery pack 100 can be adjusted so that the robotic arm of the battery swapping station can replace the battery unit 2.

[0062] In some embodiments, there are multiple lifting mechanisms 4, which are spaced apart circumferentially around the housing 1 and are adapted to operate synchronously. That is, as shown in Figure 1, lifting mechanisms 4 are provided at the four diagonal points of the housing 1 to ensure force balance. All lifting mechanisms 4 are driven by the same electronic unlocking device, ensuring that all lifting mechanisms 4 can unlock or lock simultaneously, thus maintaining synchronous movement and preventing problems such as uneven height causing the battery pack 100 to tip over or break.

[0063] In some embodiments, the battery unit 2 is provided with a pull ring 21, and the pull ring 21 is located at the end of the battery unit 2 corresponding to the open side of the installation space A. That is, as shown in Figures 3 and 6, each battery unit 2 is provided with a pull ring 21 on the side of the installation port A1. The pull ring 21 is constructed with a semi-circular structure, so that the robotic arm of the battery swapping station can be hooked and fixed with the pull ring 21, thereby applying a pulling force to pull the battery unit 2 out of the installation space A, and then extending the new battery unit 2 into the installation space A, and applying pressure to the pull ring 21 to make the battery unit 2 fully installed in the installation space A, thus completing the battery swapping operation.

[0064] In some embodiments, multiple mounting spaces A are honeycomb-shaped distributed within the housing 1. That is, as shown in Figure 7, when designing the distribution of mounting spaces A, multiple crossbeams 112 are spaced apart within the housing 1 and stacked alternately to form honeycomb-shaped mounting spaces A. When battery cells 2 are installed one-to-one in the mounting spaces A, the multiple battery cells 2 form a honeycomb structure on the open side of the housing 1. This improves the utilization rate of space within the housing 1, thereby increasing the total energy storage capacity of the battery pack 100 and thus improving the overall vehicle range.

[0065] The present invention also proposes a battery swapping station, comprising: a charging device 201, as shown in FIG9, wherein the charging device 201 has a plurality of charging spaces 203 formed therein, the plurality of charging spaces 203 being used to accommodate a plurality of battery cells 2 in a one-to-one correspondence, and the charging device 201 is adapted to be detachably connected to the battery cells 2 located in each charging space 203, and the charging device 201 is electrically connected to the battery cells 2. That is, the charging device 201 has a mounting cavity 202, and a plurality of baffles 114 are spaced apart in the mounting cavity 202 to form a plurality of charging spaces 203, such that each charging space 203 can install a battery cell 2, thereby ensuring that each battery cell 2 can be charged individually.

[0066] When battery swapping is needed, the robotic arm of the battery swapping station grabs the battery cell 2 with more charge and swaps it with the battery cell 2 with less charge in the battery pack 100, thereby achieving partial battery swapping and improving battery swapping efficiency.

[0067] In some embodiments, multiple charging spaces 203 are arranged in a honeycomb pattern within the charging device 201. That is, as shown in Figure 8, the honeycomb structure formed by the interconnected charging spaces 203 can fully utilize the mounting cavity 202 of the charging device 201. It is understood that arranging them in a honeycomb structure eliminates the need for unnecessary structures such as the outer casing 11, thereby significantly improving the space utilization of the charging device 201 and increasing the total energy storage capacity per unit space. This improves the overall service efficiency of the battery swapping station, influences subsequent commercial service models for vehicle battery swapping, and promotes the sustainable and diversified development of battery swapping stations.

[0068] The present invention also proposes a method for controlling a battery pack.

[0069] According to an embodiment of the present invention, a control method for a battery pack is applicable to any of the battery packs 100 described above, and the control method includes: as shown in FIG10,

[0070] S1: Obtain the operating status of each battery cell 2;

[0071] S2: After the operating state of any battery cell 2 meets the battery swapping conditions, a battery swapping scheme is generated. Based on the battery swapping scheme, the battery cell 2 that meets the battery swapping conditions is controlled to perform a battery swapping operation relative to the housing 1.

[0072] It should be noted that S1 specifically means: through the electrical connection between the control module and the backbone conductive structure 31, and the connection between the backbone conductive structure 31 and the battery unit 2, the control module can read the data of each battery unit 2, including data information such as remaining power and degree of loss.

[0073] In some embodiments, generating a battery swapping solution includes:

[0074] S21: Analyze the charge value of battery cell 2 and analyze the number of battery swaps for battery cell 2;

[0075] S22: When the battery level is less than the set battery level and the number of battery swaps is less than the set number of swaps, send a message to prioritize swapping the corresponding battery cell 2.

[0076] It should be noted that S22 specifically means that after the control module obtains the specific data information of each battery cell 2 through the process of S21, it can prioritize the replacement of battery cells 2 with remaining power below a set value, such as 20%, and with fewer replacement cycles. If the proportion of battery cells 2 requiring replacement exceeds a certain percentage and the overall remaining power of the battery pack 100 is low, the replacement scheme is upgraded to a complete replacement scheme, meaning all battery cells 2 are replaced.

[0077] If the proportion of battery cells 2 that need to be swapped exceeds a certain level and the total remaining power of the battery pack 100 is similar to the total remaining power of the battery swapping station, the battery cells 2 in the battery pack 100 with less remaining power than those in the battery swapping station will be swapped.

[0078] Understandably, the battery swapping solution is flexible and can be designed according to the actual remaining power of battery cell 2 in the vehicle and the battery swapping station. That is, the control module can flexibly make corresponding battery swapping plans based on the specific conditions of battery cell 2, thereby facilitating the efficient and safe completion of the battery swapping process, ensuring that the vehicle battery pack 100 has a good health condition, and thus guaranteeing the safety of the vehicle during driving.

[0079] In some embodiments, the battery pack control method further includes:

[0080] S3: After generating the battery swapping plan, control the battery pack 100 to switch from the working state to the battery swapping state;

[0081] S3A: After the battery swapping operation is completed, control the battery pack 100 to switch from the battery swapping state to the working state.

[0082] In some embodiments, the control method for the battery pack 100 further includes:

[0083] S4: Controlling the battery pack 100 to switch from the working state to the battery swapping state includes controlling the housing 1 to descend from the working position to the battery swapping position;

[0084] And S4A: Controlling the battery pack 100 to switch from the battery swapping state to the working state includes controlling the housing 1 to rise from the battery swapping position to the working position.

[0085] In some embodiments, controlling the battery pack 100 to switch from an operating state to a battery swapping state includes:

[0086] S5: Control the battery swapping door B on housing 1 to move to the position corresponding to the battery cell 2 that meets the battery swapping conditions.

[0087] 1. In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0088] 2. In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0089] 3. In the description of this invention, "a plurality of" means two or more.

[0090] 4. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0091] 5. In the description of the present invention, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that, include: The housing (1) contains multiple mounting spaces (A); multiple battery cells (2) are installed in the mounting spaces (A) one-to-one, and each battery cell (2) is individually detachable relative to the housing (1); a battery management module (3) is used to detect the operating status of the multiple battery cells (2); the housing (1) has a battery swapping door (B), which is movably installed in the housing (1) and is adapted to move to a position corresponding to any one of the battery cells (2); the housing (1) includes an outer shell (11) and a cover plate (12), the outer shell (11) having an open side, and the battery swapping door (B) is detachable relative to the housing (1). The cover plate (12) is connected to the outer shell (11) to close the open side, and the battery swapping door (B) is slidably installed on the cover plate (12); the battery management module (3) includes a backbone conductive structure (31) and multiple connectors (32). The backbone conductive structure (31) is installed in the shell (1) and is used to be electrically connected to the control module. The multiple connectors (32) are connected to the multiple battery cells (2) one by one and are all electrically connected to the backbone conductive structure (31); the backbone conductive structure (31) is electrically connected to the control module to supply power to the battery cells (2). The backbone conductive structure (31) can also detect the power status of the battery cells (2) and identify the number of battery cells (2) with less remaining power.

2. The battery pack according to claim 1, characterized in that, The mounting spaces (A) are distributed in two groups within the housing (1), and the two groups of mounting spaces (A) respectively form open mounting ports (A1) on different sides of the housing (1). The battery unit (2) is adapted to be inserted into or removed from the mounting spaces (A) from the mounting ports (A1).

3. The battery pack according to claim 2, characterized in that, The installation space (A) is distributed in two groups within the housing (1). The backbone conductive structure (31) is installed between the two groups of installation spaces (A), and the connectors (32) corresponding to the battery units (2) in the two groups of installation spaces (A) are respectively connected to both sides of the backbone conductive structure (31).

4. The battery pack according to claim 1, characterized in that, It also includes a lifting mechanism (4), which is connected to the housing (1) and is used to drive the housing (1) to lift.

5. The battery pack according to claim 4, characterized in that, There are multiple lifting mechanisms (4), and the multiple lifting mechanisms (4) are distributed at intervals in the circumferential direction of the housing (1), and the multiple lifting mechanisms (4) are adapted to operate synchronously.

6. The battery pack according to claim 1, characterized in that, The battery unit (2) is provided with a pull ring (21), and the pull ring (21) is located at one end of the battery unit (2) corresponding to the open side of the mounting space (A).

7. The battery pack according to claim 1, characterized in that, The multiple installation spaces (A) are honeycomb-shaped distributed within the housing (1).

8. A battery swapping station, characterized in that, The battery swapping station is applicable to the battery pack of any one of claims 1-7. The battery swapping station includes: a charging device (201), wherein a plurality of charging spaces (203) are formed in the charging device (201), the plurality of charging spaces (203) are used to accommodate a plurality of battery cells (2) in a one-to-one correspondence, and the charging device (201) is adapted to be detachably connected to the battery cells (2) located in each of the charging spaces (203), and the charging device (201) is electrically connected to the battery cells (2).

9. The battery swapping station according to claim 8, characterized in that, The multiple charging spaces (203) are distributed in a honeycomb pattern within the charging device (201).

10. A method for controlling a battery pack, characterized in that, The control method is applicable to the battery pack of any one of claims 1-7, and the control method includes: acquiring the operating state of each battery cell (2); generating a battery swapping scheme after the operating state of any battery cell (2) meets the battery swapping conditions; and controlling the battery cell (2) that meets the battery swapping conditions to perform a battery swapping operation relative to the housing (1) according to the battery swapping scheme.

11. The control method for the battery pack according to claim 10, characterized in that, The battery swapping scheme includes: analyzing the power value of the battery unit (2) and analyzing the number of battery swaps of the battery unit (2); when the power value is less than a set power value and the number of battery swaps is less than a set number, sending a priority battery swap to the corresponding battery unit (2).

12. The control method for the battery pack according to claim 10, characterized in that, Also includes: After generating the battery swapping scheme, control the battery pack to switch from the working state to the battery swapping state; And after the battery swapping operation is completed, control the battery pack to switch from the battery swapping state to the working state.

13. The control method for the battery pack according to claim 12, characterized in that, The control of the battery pack from the working state to the battery swapping state includes controlling the housing (1) to descend from the working position to the battery swapping position; and the control of the battery pack from the battery swapping state to the working state includes controlling the housing (1) to rise from the battery swapping position to the working position.

14. The control method for the battery pack according to claim 12, characterized in that, The control of the battery pack to switch from working state to battery swapping state includes: controlling the battery swapping door (B) on the housing (1) to move to the position corresponding to the battery cell (2) that meets the battery swapping conditions.

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