Battery pack

Abstract

The utility model relates to the technical field of batteries, and discloses a battery pack which comprises a battery replacement module and a battery pack shell, the battery replacement module comprises a battery pack, a module shell, a liquid inlet connector and a liquid outlet connector. A battery pack accommodating cavity and a cooling flow channel are arranged in the module shell, the battery pack accommodating cavity and the cooling flow channel are arranged at intervals, and the battery pack is arranged in the battery pack accommodating cavity. The module shell is provided with two ends oppositely arranged in the first direction, and the liquid inlet connector and the liquid outlet connector are arranged at the same end and communicate with the cooling flow channel. The battery pack shell comprises a shell body and a rolling shaft. A battery replacing module containing cavity is formed in the shell body, the battery replacing module and the rolling shaft are both arranged in the battery replacing module containing cavity, and the rolling shaft is located between the shell body and the module shell. An opening is formed in one end, in the first direction, of the shell body. The battery pack disclosed by the utility model can be quickly plugged and unplugged.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery pack. Background Technology

[0002] In the commercial sector, the long charging time of battery packs severely hinders the application of this energy storage device, while battery swapping is considered a superior solution. Various simplified battery swapping methods have gradually developed, such as battery swapping for two-wheeled vehicles and commercial vehicles, significantly reducing the time cost of battery pack charging. However, existing swappable battery packs require considerable time for disassembly and installation, resulting in low swapping efficiency and hindering their application in the commercial field.

[0003] Therefore, there is an urgent need for a battery pack to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack that reduces the time required for disassembling and installing battery swapping modules and improves battery swapping efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A battery pack, having a first orientation, includes:

[0007] A battery swapping module includes a battery pack, a module housing, an inlet connector, and an outlet connector. The module housing has a battery pack receiving cavity and a cooling channel, which are spaced apart from each other. The battery pack is disposed within the battery pack receiving cavity. The module housing has two ends that are arranged opposite to each other along a first direction. The inlet connector and the outlet connector are disposed at the same end and are respectively connected to the cooling channel.

[0008] A battery pack housing includes a housing body and a roller; a battery swapping module receiving cavity is provided inside the housing body, the battery swapping module and the roller are both disposed in the battery swapping module receiving cavity, and the roller is located between the housing body and the module housing; an opening is provided at one end of the housing body along the first direction;

[0009] The roller is configured to abut against the module housing and rotate when the battery swapping module enters or exits the battery swapping module receiving cavity from the opening.

[0010] As an improvement to the above technical solution, the battery pack also has a second direction and a third direction, wherein the first direction, the second direction and the third direction intersect each other;

[0011] The module housing includes a module base plate, a first end plate, a second end plate, a first side plate, and a second side plate; the first end plate and the second end plate are arranged opposite to each other along the first direction, and the first side plate and the second side plate are arranged opposite to each other along the second direction, and the first end plate, the second end plate, the first side plate, and the second side plate form the battery pack receiving cavity; the battery pack is disposed in the battery pack receiving cavity, and the module base plate is connected to one end of the battery pack along the third direction;

[0012] The module base plate has the cooling channel, and the liquid inlet connector and the liquid outlet connector are disposed on the module base plate and located on the side of the second end plate away from the first end plate;

[0013] The roller is located between at least one of the first side plate, the second side plate, or the module base plate and the housing body.

[0014] As an improvement to the above technical solution, a plurality of rollers are provided between the first side plate and the housing body, and / or a plurality of rollers are provided between the second side plate and the housing body, and all rollers are capable of rotating relative to the housing body about an axis extending along the third direction.

[0015] As an improvement to the above technical solution, the module base plate has a first guide portion on the side away from the battery pack receiving cavity, and the housing body has a second guide portion on the inner wall facing the first guide portion. The second guide portion and the first guide portion are correspondingly arranged along the third direction.

[0016] The first guide portion and the second guide portion are matched with each other and can move relative to each other along the first direction.

[0017] As an improvement to the above technical solution, the first guide part is a slide groove, and the second guide part is a slide rail;

[0018] The module base plate includes a first plate and a second plate stacked along the third direction. The first plate is connected to the battery pack. The second plate is disposed on the side of the first plate away from the battery pack and partially forms a protrusion in the direction away from the battery pack. The cooling channel is formed between the first plate and the protrusion. The protrusion includes a plurality of protrusion segments extending along the first direction and the plurality of protrusion segments are spaced apart along the second direction. The groove is formed between at least two adjacent protrusion segments.

[0019] The slide rail is disposed within the slide groove.

[0020] As an improvement to the above technical solution, it also includes cable ties and handles. The cable ties are clamped on the side of the first end plate, the first side plate, the second end plate, and the second side plate away from the battery pack. The handle is fixedly mounted on the cable ties and is located at the end of the module housing facing the opening along the first direction.

[0021] As an improvement to the above technical solution, the battery pack housing also includes a sealing plate, which is detachably connected to the housing body and covers the opening.

[0022] As an improvement to the above technical solution, the battery swapping module further includes a module output electrode group, which is disposed on the first end plate and is electrically connected to the battery pack.

[0023] The battery pack housing also includes a battery pack output electrode group, which is disposed on the housing body and is disposed opposite to the module output electrode group along the first direction;

[0024] The module output pole group and the battery pack output pole group are configured such that when the battery swapping module enters the battery swapping module receiving cavity, the module output pole group is inserted into the battery pack output pole group, and when the battery swapping module leaves the battery swapping module receiving cavity, the module output pole group is disengaged from the battery pack output pole group.

[0025] As an improvement to the above technical solution, the module output electrode group includes a first connecting piece and a second connecting piece. Both the first connecting piece and the second connecting piece are disposed on the first end plate.

[0026] The battery pack has two output terminals with opposite polarities. The first connecting piece is connected to one of the two output terminals, and the second connecting piece is spaced apart from the first connecting piece and connected to the other of the two output terminals.

[0027] The battery pack output terminal group includes a first battery pack output terminal and a second battery pack output terminal;

[0028] Both the first battery pack output terminal and the second battery pack output terminal are disposed on the housing body and spaced apart from each other. The first battery pack output terminal is electrically connected to the first connecting piece, and the second battery pack output terminal is electrically connected to the second connecting piece.

[0029] A first slot is provided on the output terminal of the first battery pack, and a first abutting spring is provided in the first slot. The end of the first connecting piece is inserted into the first slot and the first abutting spring abuts against the first connecting piece.

[0030] A second slot is provided on the output terminal of the second battery pack. The second slot has a second abutting spring. The end of the second connecting piece is inserted into the second slot and the second abutting spring abuts against the second connecting piece.

[0031] As an improvement to the above technical solution, the battery swapping module further includes an output electrode base, which is disposed on the side of the first end plate away from the battery pack. The output electrode base is provided with a first through hole and a second through hole, which are spaced apart and both penetrate the output electrode base along the first direction. The first connecting piece extends into the first through hole and the second connecting piece extends into the second through hole.

[0032] The first battery pack output terminal includes a first segment and a second segment connected to each other; the second segment is fixedly disposed on the housing body, the first segment extends along the first direction and the end of the first segment away from the second segment extends into the first through hole, and the first slot is disposed on the end of the first segment away from the second segment;

[0033] The output terminal of the second battery pack includes a third segment and a fourth segment connected to each other; the fourth segment is fixedly disposed on the housing body, the third segment extends along the first direction and the end of the third segment away from the fourth segment extends into the second through hole, and the second slot is disposed on the end of the third segment away from the fourth segment.

[0034] As an improvement to the above technical solution, the first end plate also has a limiting block; the limiting block is disposed on the side of the first end plate away from the battery pack; the limiting block abuts against the housing body.

[0035] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0036] This utility model discloses a battery pack with modular battery swapping modules that can be replaced as a whole. The swapping modules have integrated cooling channels, allowing them to be positioned closer to the battery pack to ensure effective cooling during charging and operation. The inlet and outlet connectors for the cooling channels are located at the same end of the module housing, facilitating quick disconnection and reconnection of the cooling system during module replacement. Furthermore, a roller between the swapping module and the battery pack housing facilitates rapid insertion and removal of the swapping module, reducing the time required for insertion and removal. These features effectively improve the disassembly and installation speed of the battery swapping modules, thereby increasing swapping efficiency. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the battery pack structure provided in this embodiment of the utility model. Figure 1 ;

[0038] Figure 2 This is a schematic diagram of the battery pack structure provided in this embodiment of the utility model. Figure 2 ;

[0039] Figure 3 This is an exploded view of the battery pack provided in an embodiment of this utility model;

[0040] Figure 4 This is a partial structural diagram of the battery pack housing provided in this embodiment of the utility model. Figure 1 ;

[0041] Figure 5 This is a partial structural diagram of the battery pack housing provided in this embodiment of the utility model. Figure 2 ;

[0042] Figure 6 This is a schematic diagram of a portion of the structure of the battery pack provided in an embodiment of this utility model;

[0043] Figure 7 This is a schematic diagram of the battery swapping module of the battery pack provided in this embodiment of the utility model. Figure 1 ;

[0044] Figure 8 This is a schematic diagram of the battery swapping module of the battery pack provided in this embodiment of the utility model. Figure 2 ;

[0045] Figure 9 This is a schematic diagram of the battery swapping module of the battery pack provided in this embodiment of the utility model. Figure 3 ;

[0046] Figure 10 This is a partial structural diagram of the battery swapping module of the battery pack provided in this embodiment of the utility model. Figure 1 ;

[0047] Figure 11 yes Figure 10 Sectional view at point AA;

[0048] Figure 12 This is a partial structural diagram of the battery pack housing provided in this embodiment of the utility model. Figure 3 ;

[0049] Figure 13 This is a partial structural diagram of the battery swapping module of the battery pack provided in this embodiment of the utility model. Figure 2 ;

[0050] Figure 14 This is a schematic diagram of the structure of the battery pack output pole group of the battery pack provided in this embodiment of the utility model;

[0051] Figure 15This is a partial structural diagram of the battery swapping module of the battery pack provided in this embodiment of the utility model. Figure 3 .

[0052] In the picture:

[0053] X, first direction; Y, second direction; Z, third direction;

[0054] 1. Battery swapping module; 11. Battery pack; 111. Individual battery cell;

[0055] 12. Module housing; 121. Battery pack receiving cavity; 122. Cooling channel; 123. Module base plate; 1231. First guide section; 1232. First plate; 1233. Second plate; 12331. Protruding section;

[0056] 124. First end plate;

[0057] 1241. Limit stop;

[0058] 125. Second end plate; 126. First side plate; 127. Second side plate; 128. Module cover plate; 129. Adhesive layer;

[0059] 13. Liquid inlet connector; 14. Liquid outlet connector;

[0060] 15. Module output pole group;

[0061] 151. First connecting piece;

[0062] 152. Second connecting piece;

[0063] 16. Output base; 161. First through hole; 162. Second through hole;

[0064] 17. Cable ties;

[0065] 18. Handle;

[0066] 2. Battery pack casing;

[0067] 21. Main body of the housing; 211. Battery swapping module receiving cavity; 212. Opening;

[0068] 213. Second guide section; 214. Guide slot;

[0069] 215. Battery pack bottom plate; 216. First battery pack side plate; 2161. Hole; 217. Second battery pack side plate; 218. Third battery pack side plate; 219. Battery pack cover plate;

[0070] 22. Roller;

[0071] 23. Sealing board;

[0072] 24. Battery pack output terminal group;

[0073] 241. Output terminal of the first battery pack;

[0074] 2411, First slot; 2412, First abutment spring;

[0075] 2413, First paragraph; 2414, Second paragraph;

[0076] 242. Output terminal of the second battery pack;

[0077] 2421, Second slot; 2422, Second abutment spring;

[0078] 2423, the third paragraph; 2424, the fourth paragraph. Detailed Implementation

[0079] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0080] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0081] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0082] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0083] like Figures 1-13 As shown, this embodiment provides a battery pack with a first direction X. The battery pack includes a battery swapping module 1 and a battery pack housing 2. The battery swapping module 1 includes a battery pack 11, a module housing 12, an inlet connector 13, and an outlet connector 14. The module housing 12 has a battery pack receiving cavity 121 and a cooling channel 122, which are spaced apart from each other. The battery pack 11 is disposed in the battery pack receiving cavity 121 and includes multiple battery cells 111 arranged in an array. The inlet connector 13 and the outlet connector 14 are disposed at one end of the module housing 12 along the first direction X and are respectively connected to the cooling channel 122. The battery pack housing 2 includes a housing body 21 and a roller 22. The housing body 21 has a battery swapping module receiving cavity 211. The battery swapping module 1 and the roller 22 are both disposed within the battery swapping module receiving cavity 211, and the roller 22 is located between the housing body 21 and the module housing 12. The housing body 21 has an opening 212 at one end along the first direction X. The roller 22 is configured to abut against the module housing 12 and rotate when the battery swapping module 1 enters or exits the battery swapping module receiving cavity 211 through the opening 212.

[0084] The battery pack provided in this embodiment features a modular battery swapping module 1 that can be replaced as a whole. The battery swapping module 1 has a built-in cooling channel 122, allowing it to be positioned closer to the battery pack 11, ensuring effective cooling during charging and operation. The inlet connector 13 and outlet connector 14, connecting the cooling channel 122, are both located at the same end of the module housing 12, facilitating quick disconnection and connection of the cooling system to the inlet and outlet connectors 13 and 14 during battery swapping module replacement. Furthermore, a roller 22 between the battery swapping module 1 and the battery pack housing 2 facilitates rapid insertion and removal of the battery swapping module 1, reducing the time required for insertion and removal. These features effectively improve the disassembly and installation speed of the battery swapping module 1, thereby increasing battery swapping efficiency. After the battery swap is completed, the removed battery swap module 1 can be placed in the charging cabinet, and the liquid cooling system of the charging cabinet can be connected to the liquid inlet connector 13 and the liquid outlet connector 14 of the battery swap module 1 for charging. The battery swap module 1 can also be cooled during the charging process, which helps to improve the charging speed.

[0085] The inlet connector 13 and the outlet connector 14 can be located at the end of the module housing 12 away from the opening 212 along the first direction X, or they can be located at the end of the module housing 12 near the opening 212 along the first direction X. Preferably, both the inlet connector 13 and the outlet connector 14 are located at the end of the module housing 12 near the opening 212 along the first direction X.

[0086] Furthermore, such as Figures 6-9As shown, the battery pack also has a second direction Y and a third direction Z, and the first direction X, the second direction Y, and the third direction Z intersect each other. The module housing 12 includes a module base plate 123, a first end plate 124, a second end plate 125, a first side plate 126, and a second side plate 127. The first end plate 124 and the second end plate 125 are arranged opposite each other along the first direction X, and the first side plate 126 and the second side plate 127 are arranged opposite each other along the second direction Y. The first end plate 124, the second end plate 125, the first side plate 126, and the second side plate 127 form a battery pack receiving cavity 121. The first side plate 126 and the battery pack 11, as well as the second side plate 127 and the battery pack 11, are bonded together by an adhesive layer 129. The battery pack 11 is disposed in the battery pack receiving cavity 121, and the module base plate 123 is connected to one end of the battery pack 11 along the third direction Z. In this embodiment, the battery pack 11 is fixedly connected to the module base plate 123. The connection method between the battery pack 11 and the module base plate 123 is a conventional technique in the art and will not be described in detail here. The module base plate 123 has a cooling channel 122. The liquid inlet connector 13 and the liquid outlet connector 14 are disposed on the module base plate 123 and located on the side of the second end plate 125 opposite to the first end plate 124. The roller 22 is located between at least one of the first side plate 126, the second side plate 127, or the module base plate 123 and the housing body 21. Preferably, in this embodiment, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0087] Furthermore, such as Figures 6-8 As shown, the module housing 12 also includes a module cover plate 128. The module cover plate 128 and the module base plate 123 are arranged opposite each other along the third direction Z. The module base plate 123 is located below the battery pack 11, and the module cover plate 128 is placed on top of the battery pack 11. The module cover plate 128 plays a protective role for the top of the battery pack 11.

[0088] Furthermore, such as Figure 6 and Figure 12 As shown, multiple rollers 22 are provided between the first side plate 126 and the housing body 21, and / or multiple rollers 22 are provided between the second side plate 127 and the housing body 21. All rollers 22 are rotatable relative to the housing body 21 about an axis extending along a third direction Z. Providing rollers 22 on one or both sides of the battery swapping module receiving cavity 211 along the first direction X reduces the moving resistance of the battery swapping module 1 when entering and exiting the battery swapping module receiving cavity 211, facilitating the rapid insertion of the battery swapping module.

[0089] Preferably, such as Figure 6 and Figure 12As shown, multiple rollers 22 are provided between the first side plate 126 and the housing body 21, and between the second side plate 127 and the housing body 21. Both ends of the rollers 22 are rotatably connected to the housing body 21. During the process of the battery swapping module 1 entering the battery pack housing 2, the rollers 22 on both sides of the battery swapping module 1 can reduce the resistance of the battery swapping module 1 during movement by rolling, and can enhance the impact resistance of both sides of the battery pack housing 2. In this embodiment, two rollers 22 form a group, and multiple groups of rollers 22 are provided on both sides of the battery swapping module 1. The multiple groups of rollers 22 located on the same side of the battery swapping module 1 are spaced apart along the first direction X. The two rollers 22 in the same group are also spaced apart along the first direction X. The distance between two adjacent groups of rollers 22 is greater than the distance between two rollers 22 in the same group.

[0090] Optionally, such as Figures 9-12 As shown, the module base plate 123 has a first guide portion 1231 on the side opposite to the battery pack receiving cavity 121, and a second guide portion 213 is provided on the inner wall of the housing body 21 facing the first guide portion 1231. The second guide portion 213 and the first guide portion 1231 are correspondingly arranged along the third direction Z. The first guide portion 1231 and the second guide portion 213 are matched with each other and can move relative to each other along the first direction X. The first guide portion 1231 and the second guide portion 213 can guide and limit the battery swapping module 1, so that when the battery swapping module 1 enters the battery swapping module receiving cavity 211 from the opening 212 of the battery pack housing 2, the relative position of the battery swapping module 1 and the battery pack housing 2 is more accurate, which facilitates the rapid installation of the battery swapping module 1 and further improves the battery swapping efficiency.

[0091] Furthermore, such as Figures 9-12 As shown, the first guide portion 1231 is a groove, and the second guide portion 213 is a slide rail. The module base plate 123 includes a first plate 1232 and a second plate 1233 stacked along a third direction Z. The first plate 1232 is connected to the battery pack 11, and the second plate 1233 is disposed on the side of the first plate 1232 away from the battery pack 11, and a portion of it forms a protrusion in a direction away from the battery pack 11. A cooling channel 122 is formed between the first plate 1232 and the protrusion. The protrusion includes a plurality of protrusion segments 12331 extending along a first direction X, and the plurality of protrusion segments 12331 are spaced apart along a second direction Y. A groove is formed between at least two adjacent protrusion segments 12331. The slide rail is disposed in the groove. In this embodiment, the module base plate 123 integrates the cooling channel 122 and the first guide portion 1231 into one unit, thereby reducing the volume and weight of the module base plate 123 while realizing the layout of the cooling channel 122 and the first guide portion 1231.

[0092] Furthermore, such as Figures 9-12As shown, the main body 21 of the housing includes a battery pack bottom plate 215, a first battery pack side plate 216, a second battery pack side plate 217, a third battery pack side plate 218, and a battery pack cover plate 219. The battery pack bottom plate 215 and the battery pack cover plate 219 are arranged opposite each other along the third direction Z, wherein the battery pack bottom plate 215 is located at the bottom of the main body 21 of the housing. The first battery pack side plate 216 is located at the end of the main body 21 of the housing away from the opening 212. The second battery pack side plate 217 and the third battery pack side plate 218 are arranged opposite each other along the second direction Y. A second guide portion 213 is provided on the battery pack bottom plate 215, and multiple second guide portions 213 are spaced apart along the second direction Y. The cooperation of the guide rail and the slide groove, in addition to guiding the insertion and removal process of the battery swapping module 1, also provides support for the battery swapping module 1 along the second direction Y during the use of the battery pack.

[0093] Optionally, such as Figure 8 and Figure 15 As shown, the battery pack provided in this embodiment also includes cable ties 17 and a handle 18. The cable ties 17 are clamped on the side of the first end plate 124, the first side plate 126, the second end plate 125, and the second side plate 127 facing away from the battery pack 11. The handle 18 is fixedly mounted on the cable ties 17 and is located at the end of the module housing 12 facing the opening 212 along the first direction X, which is the outlet of the battery pack housing 2. When replacing the battery swapping module 1, the operator can lift the battery swapping module 1 through the handle 18, making it easier for the operator to insert and remove the battery swapping module 1, thereby further improving the efficiency of the battery swapping operation.

[0094] Preferably, the liquid inlet connector 13, the liquid outlet connector 14 and the handle 18 are located at the same end of the module housing 12, that is, at the opening 212, so as to facilitate quick connection and quick plugging and unplugging of the liquid inlet and outlet connectors to the external cold source.

[0095] Optionally, such as Figure 1 , Figure 3 and Figure 4 As shown, the battery pack housing 2 also includes a sealing plate 23, which is detachably connected to the housing body 21 and covers the opening 212. The sealing plate 23 serves to seal the battery swapping module receiving cavity 211, preventing the battery swapping module 1 from coming out of the battery swapping module receiving cavity 211 and protecting the battery swapping module 1 located in the battery swapping module receiving cavity 211.

[0096] Furthermore, such as Figure 1 , Figure 3 and Figure 4As shown, a guide slot 214 is provided at the opening 212 of the battery pack housing 2. The sealing plate 23 is inserted into the opening 212 of the battery pack housing 2 through the guide slot 214, and the sealing plate 23 can be inserted and removed along the second direction Y. Specifically, the second battery pack side plate 217, the battery pack bottom plate 215, and the battery pack cover plate 219 are all provided with guide slots 214 at the ends near the opening 212.

[0097] Optionally, such as Figures 6-8 As shown, the battery swapping module 1 also includes a module output electrode group 15, which is disposed on the first end plate 124 and electrically connected to the battery pack 11. The battery pack housing 2 also includes a battery pack output electrode group 24, which is disposed on the housing body 21 and is positioned opposite to the module output electrode group 15 along the first direction X. The module output electrode group 15 and the battery pack output electrode group 24 are configured such that when the battery swapping module 1 enters the battery swapping module receiving cavity 211, the module output electrode group 15 is inserted into the battery pack output electrode group 24, and when the battery swapping module 1 leaves the battery swapping module receiving cavity 211, the module output electrode group 15 is disengaged from the battery pack output electrode group 24. The battery pack output terminal group 24 and the housing body 21 are integrated together inside the vehicle. When the battery swapping module 1 is inserted into the battery swapping module receiving cavity 211, the module output terminal group 15 connects with the battery pack output terminal group 24, establishing an electrical connection between the battery swapping module 1 and the battery pack housing 2. When the battery swapping module 1 is pulled out from the battery swapping module receiving cavity 211, the module output terminal group 15 disengages from the battery pack output terminal group 24. In other words, during the installation and removal of the battery swapping module 1, it is not necessary to separately connect and disconnect the module output terminal group 15 from the battery pack output terminal group 24, simplifying the battery swapping process and further improving the battery swapping efficiency.

[0098] Furthermore, such as Figure 7 , Figure 13 and Figure 14As shown, the module output electrode group 15 includes a first connecting piece 151 and a second connecting piece 152, both of which are disposed on the first end plate 124. The battery pack 11 has two output terminals with opposite polarities. The first connecting piece 151 connects to one of the two output terminals, and the second connecting piece 152 connects to the other. The second connecting piece 152 is spaced apart from the first connecting piece 151 to avoid short circuits caused by contact between the first connecting piece 151 and the second connecting piece 152. The battery pack output electrode group 24 includes a first battery pack output electrode 241 and a second battery pack output electrode 242. Both the first battery pack output electrode 241 and the second battery pack output electrode 242 are disposed on the housing body 21 and spaced apart from each other to avoid short circuits caused by contact between the first battery pack output electrode 241 and the second battery pack output electrode 242. The first battery pack output electrode 241 is electrically connected to the first connecting piece 151, and the second battery pack output electrode 242 is electrically connected to the second connecting piece 152. The battery pack 11 outputs electrical energy to the outside through the module output terminal group 15 and the battery pack output terminal group 24.

[0099] Furthermore, such as Figure 7 , Figure 13 and Figure 14As shown, a first slot 2411 is provided on the output terminal 241 of the first battery pack, and a first abutting spring 2412 is provided in the first slot 2411. The end of the first connecting piece 151 is inserted into the first slot 2411 and the first abutting spring 2412 abuts against the first connecting piece 151. A second slot 2421 is provided on the output terminal 242 of the second battery pack, and a second abutting spring 2422 is provided in the second slot 2421. The end of the second connecting piece 152 is inserted into the second slot 2421 and the second abutting spring 2422 abuts against the second connecting piece 152. After the battery swapping module 1 is inserted into the battery swapping module receiving cavity 211, the end of the first connecting piece 151 away from the second end plate 125 is inserted into the first slot 2411 on the output terminal 241 of the first battery pack. The first abutting spring 2412 located in the first slot 2411 abuts against the first connecting piece 151 and undergoes elastic deformation. The elastic restoring force generated by the elastic deformation of the first abutting spring 2412 ensures a stable electrical connection between the first abutting spring 2412 and the first connecting piece 151. The end of the second connecting piece 152 away from the second end plate 125 is inserted into the second slot 2421 on the output terminal 242 of the second battery pack. The second abutting spring 2422 located in the second slot 2421 abuts against the second connecting piece 152 and undergoes elastic deformation. The elastic restoring force generated by the elastic deformation of the second abutting spring 2422 ensures a stable electrical connection between the second abutting spring 2422 and the second connecting piece 152. Specifically, the first abutting spring 2412 is fixedly disposed on the inner side of the first slot 2411 perpendicular to the third direction Z, and the first abutting spring 2412 is located above the first connecting piece 151. The second abutting spring 2422 is fixedly disposed on the inner side of the second slot 2421 perpendicular to the third direction Z, and the second abutting spring 2422 is located above the second connecting piece 152.

[0100] Furthermore, such as Figures 6-8As shown, the battery swapping module 1 also includes an output electrode base 16, which is disposed on the side of the first end plate 124 away from the battery pack 11. The output electrode base 16 has a first through hole 161 and a second through hole 162, which are spaced apart and both penetrate the output electrode base 16 along the first direction X. A first connecting piece 151 extends into the first through hole 161, and a second connecting piece 152 extends into the second through hole 162. The first battery pack output electrode 241 includes a first segment 2413 and a second segment 2414 connected to each other. The second segment 2414 is fixedly disposed on the housing body 21 and located on the side of the output electrode base 16 away from the battery pack 11. The first segment 2413 extends along the first direction X, and the end of the first segment 2413 away from the second segment 2414 extends into the first through hole 161. A first slot 2411 is disposed on the end of the first segment 2413 away from the second segment 2414. The second battery pack output terminal 242 includes a third segment 2423 and a fourth segment 2424 that are connected to each other. The fourth segment 2424 is fixedly disposed on the housing body 21 and is located on the side of the output terminal base 16 away from the battery pack 11. The third segment 2423 extends along the first direction X and the end of the third segment 2423 away from the fourth segment 2424 extends into the second through hole 162. The second slot 2421 is disposed on the end of the third segment 2423 away from the fourth segment 2424.

[0101] When the battery swapping module 1 is inserted into the battery swapping module receiving cavity 211 along the first direction X, the first segment 2413 of the first battery pack output pole 241 is inserted into the first through hole 161 along the first direction X, and the portion of the first connecting piece 151 located in the first through hole 161 is inserted into the first slot 2411 on the first segment 2413, thereby realizing the electrical connection between the first connecting piece 151 and the first battery pack output pole 241. Similarly, the third segment 2423 of the second battery pack output pole 242 is inserted into the second through hole 162 along the first direction X, and the portion of the second connecting piece 152 located in the second through hole 162 is inserted into the second slot 2421 on the third segment 2423, thereby realizing the electrical connection between the second connecting piece 152 and the second battery pack output pole 242. In other words, the insertion between the first connecting piece 151 and the first battery pack output pole 241 is performed within the first through hole 161 on the output pole base 16, and the insertion between the second connecting piece 152 and the second battery pack output pole 242 is performed within the second through hole 162 on the output pole base 16. During the insertion process of the module output pole group 15 and the battery pack output pole group 24, the output pole base 16 plays a limiting role for the first connecting piece 151, the second connecting piece 152, the first battery pack output pole 241, and the second battery pack output pole 242, preventing the positions of the first connecting piece 151, the second connecting piece 152, the first battery pack output pole 241, and the second battery pack output pole 242 from changing under the action of the insertion force during the insertion process. In this embodiment, the length of the first connecting piece 151 is greater than the length of the second connecting piece 152, the cross-sectional size of the first connecting hole is greater than the cross-sectional size of the second connecting hole, and the position of the first connecting hole is higher than that of the second connecting hole. The larger and higher first connecting hole is used for connecting the longer first connecting piece 151 to the output pole 241 of the first battery pack.

[0102] Furthermore, such as Figure 2 and Figure 5As shown, a perforated hole 2161 is provided on the side plate 216 of the first battery pack. The first segment 2413 of the first battery pack output pole 241 and the third segment 2423 of the second battery pack output pole 242 both pass through the perforated hole 2161. The second segment 2414 of the first battery pack output pole 241 and the fourth segment 2424 of the second battery pack output pole 242 are both located on the side of the first battery pack side plate 216 away from the battery swapping module 1. The top end of the second segment 2414 of the first battery pack output pole 241 is fixedly connected to the end of the first segment 2413 that passes through the perforated hole 2161. The top end of the fourth segment 2424 of the second battery pack output pole 242 is fixedly connected to the end of the third segment 2423 that passes through the perforated hole 2161. The second segment 2414 of the first battery pack output pole 241 and the fourth segment 2424 of the second battery pack output pole 242 both extend in the third direction Z. The battery pack is electrically connected to an external power supply device through the second segment 2414 of the first battery pack output terminal 241 and the fourth segment 2424 of the second battery pack output terminal 242.

[0103] Furthermore, such as Figure 6 and Figure 7 As shown, the first end plate 124 also has a limiting block 1241. The limiting block 1241 is located on the side of the first end plate 124 facing away from the battery pack 11. The limiting block 1241 abuts against the housing body 21. The limiting block 1241 serves to protect the output terminal base 16, preventing the output terminal base 16 from directly colliding with the side plate 216 of the first battery pack during the insertion of the battery swapping module 1.

[0104] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A battery pack having a first direction (X), characterized in that, include: A battery swapping module (1) includes a battery pack (11), a module housing (12), an inlet connector (13), and an outlet connector (14). The module housing (12) is provided with a battery pack receiving cavity (121) and a cooling channel (122). The battery pack receiving cavity (121) and the cooling channel (122) are spaced apart from each other. The battery pack (11) is disposed in the battery pack receiving cavity (121). The inlet connector (13) and the outlet connector (14) are disposed at one end of the module housing (12) along the first direction (X) and are respectively connected to the cooling channel (122). The battery pack housing (2) includes a housing body (21) and a roller (22); the housing body (21) is provided with a battery swapping module receiving cavity (211), the battery swapping module (1) and the roller (22) are both disposed in the battery swapping module receiving cavity (211), and the roller (22) is located between the housing body (21) and the module housing (12); the housing body (21) is provided with an opening (212) at one end along the first direction (X). The roller (22) is configured to abut against the module housing (12) and rotate when the battery swapping module (1) enters or exits the battery swapping module receiving cavity (211) from the opening (212).

2. The battery pack according to claim 1, characterized in that, The battery pack also has a second direction (Y) and a third direction (Z), wherein the first direction (X), the second direction (Y), and the third direction (Z) intersect each other; The module housing (12) includes a module base plate (123), a first end plate (124), a second end plate (125), a first side plate (126), and a second side plate (127); the first end plate (124) and the second end plate (125) are arranged opposite each other along the first direction (X), the first side plate (126) and the second side plate (127) are arranged opposite each other along the second direction (Y), and the first end plate (124), the second end plate (125), the first side plate (126), and the second side plate (127) enclose the battery pack receiving cavity (121); the battery pack (11) is disposed in the battery pack receiving cavity (121), and the module base plate (123) is connected to one end of the battery pack (11) along the third direction (Z); The module base plate (123) has the cooling channel (122), and the liquid inlet connector (13) and the liquid outlet connector (14) are provided on the module base plate (123) and located on the side of the second end plate (125) away from the first end plate (124); The roller (22) is located between at least one of the first side plate (126), the second side plate (127) or the module base plate (123) and the housing body (21).

3. The battery pack according to claim 2, characterized in that, A plurality of rollers (22) are provided between the first side plate (126) and the housing body (21), and / or a plurality of rollers (22) are provided between the second side plate (127) and the housing body (21); each roller (22) is rotatable relative to the housing body (21) about an axis extending along the third direction (Z).

4. The battery pack according to claim 3, characterized in that, The module base plate (123) has a first guide portion (1231) on the side away from the battery pack receiving cavity (121), and the housing body (21) has a second guide portion (213) on the inner wall facing the first guide portion (1231). The second guide portion (213) and the first guide portion (1231) are correspondingly arranged along the third direction (Z). The first guide portion (1231) and the second guide portion (213) are matched with each other and can move relative to each other along the first direction (X).

5. The battery pack according to claim 4, characterized in that, The first guide part (1231) is a slide groove, and the second guide part (213) is a slide rail; The module base plate (123) includes a first plate (1232) and a second plate (1233) stacked along the third direction (Z). The first plate (1232) is connected to the battery pack (11). The second plate (1233) is disposed on the side of the first plate (1232) away from the battery pack (11) and partially forms a protrusion in the direction away from the battery pack (11). The cooling channel (122) is formed between the first plate (1232) and the protrusion. The protrusion includes a plurality of protrusion segments (12331) extending along the first direction (X), and the plurality of protrusion segments (12331) are spaced apart along the second direction (Y). The groove is formed between at least two adjacent protrusion segments (12331). The slide rail is disposed within the slide groove.

6. The battery pack according to claim 2, characterized in that, It also includes cable ties (17) and handles (18). The cable ties (17) are clamped on the side of the first end plate (124), the first side plate (126), the second end plate (125), and the second side plate (127) away from the battery pack (11). The handles (18) are fixedly mounted on the cable ties (17) and are located at one end of the module housing (12) facing the opening (212) along the first direction (X).

7. The battery pack according to any one of claims 2-6, characterized in that, The battery pack housing (2) also includes a sealing plate (23), which is detachably connected to the housing body (21) and covers the opening (212).

8. The battery pack according to claim 7, characterized in that, The battery swapping module (1) further includes a module output pole group (15), which is disposed on the first end plate (124) and is electrically connected to the battery pack (11). The battery pack housing (2) further includes a battery pack output pole group (24), which is disposed on the housing body (21) and is disposed opposite to the module output pole group (15) along the first direction (X); The module output pole group (15) and the battery pack output pole group (24) are configured such that when the battery swapping module (1) enters the battery swapping module receiving cavity (211), the module output pole group (15) is inserted into the battery pack output pole group (24), and when the battery swapping module (1) leaves the battery swapping module receiving cavity (211), the module output pole group (15) is disengaged from the battery pack output pole group (24).

9. The battery pack according to claim 8, characterized in that, The module output pole group (15) includes a first connecting piece (151) and a second connecting piece (152), both of which are disposed on the first end plate (124); The battery pack (11) has two output terminals with opposite polarities. The first connecting piece (151) is connected to one of the two output terminals, and the second connecting piece (152) is spaced apart from the first connecting piece (151) and connected to the other of the two output terminals. The battery pack output pole group (24) includes a first battery pack output pole (241) and a second battery pack output pole (242). The first battery pack output terminal (241) and the second battery pack output terminal (242) are both disposed on the housing body (21) and spaced apart from each other. The first battery pack output terminal (241) is electrically connected to the first connecting piece (151), and the second battery pack output terminal (242) is electrically connected to the second connecting piece (152); wherein: A first slot (2411) is provided on the output terminal (241) of the first battery pack. A first abutting spring (2412) is provided in the first slot (2411). The end of the first connecting piece (151) is inserted into the first slot (2411) and the first abutting spring (2412) abuts against the first connecting piece (151). A second slot (2421) is provided on the output terminal (242) of the second battery pack. A second abutment spring (2422) is provided in the second slot (2421). The end of the second connecting piece (152) is inserted into the second slot (2421) and the second abutment spring (2422) abuts against the second connecting piece (152).

10. The battery pack according to claim 9, characterized in that, The battery swapping module (1) further includes an output electrode base (16), which is disposed on the side of the first end plate (124) away from the battery pack (11). The output electrode base (16) is provided with a first through hole (161) and a second through hole (162). The first through hole (161) and the second through hole (162) are spaced apart and both penetrate the output electrode base (16) along the first direction (X). The first connecting piece (151) extends into the first through hole (161), and the second connecting piece (152) extends into the second through hole (162). The first battery pack output terminal (241) includes a first segment (2413) and a second segment (2414) connected to each other; the second segment (2414) is fixedly disposed on the housing body (21); the first segment (2413) extends along the first direction (X) and the end of the first segment (2413) away from the second segment (2414) extends into the first through hole (161); the first slot (2411) is disposed on the end of the first segment (2413) away from the second segment (2414); The second battery pack output terminal (242) includes a third segment (2423) and a fourth segment (2424) connected to each other; the fourth segment (2424) is fixedly disposed on the housing body (21), the third segment (2423) extends along the first direction (X) and the end of the third segment (2423) away from the fourth segment (2424) extends into the second through hole (162), and the second slot (2421) is disposed on the end of the third segment (2423) away from the fourth segment (2424).

11. The battery pack according to claim 10, characterized in that, The first end plate (124) also has a limiting block (1241); the limiting block (1241) is disposed on the side of the first end plate (124) away from the battery pack (11) and spaced apart from the output electrode base (16); the limiting block (1241) abuts against the housing body (21).

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