Battery pack and electric device

Abstract

The utility model discloses a battery pack and an electric device, and belongs to the technical field of batteries. A containing cavity is formed in a box body; the battery pack comprises a first total output bar and a second total output bar which are opposite in polarity; the connector comprises a first connecting part and a second connecting part which are arranged at an interval, the first connecting part and the second connecting part are both arranged in the accommodating cavity, the first connecting part is electrically connected with the first total output bar, and the second connecting part is electrically connected with the second total output bar; the protective cover comprises an upper cover, a shell and a flexible connecting piece, the shell is provided with a containing cavity, the first connecting part and the second connecting part are arranged in the containing cavity, the upper cover covers the shell, the upper cover is rotatably connected to the shell through the flexible connecting piece, the shell comprises a first side wall and a second side wall, and the first connecting part and the second connecting part are arranged in the containing cavity. The end, close to the first side wall, of the first total output bar penetrates through the first side wall, and the end, close to the second side wall, of the second total output bar penetrates through the second side wall, so that devices in the protective cover are protected.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a battery pack and an electrical device. Background Art

[0002] With the continuous development and progress of new energy technologies, the storage capacity of battery packs is getting larger and larger, and there are more and more high and low voltage lines inside the battery packs. The protection of high-voltage connectors is particularly important.

[0003] In the existing technology, high-voltage connectors are usually installed in battery packs for charging, discharging and other functions. The insulation protection of the high-voltage connector output port often requires a safe and reliable design to achieve insulation protection for the high-voltage connector's conductive poles, high-voltage copper busbars and bolts, so as to avoid high-voltage leakage and pose a safety hazard to other components of the battery pack. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a battery pack that can solve the problem of insufficient protection of high-voltage connectors in the battery pack in the prior art. Another purpose of the embodiments of the present application is to provide an electrical device.

[0005] To solve the above technical problems, the present application is implemented as follows: a battery pack having a first direction, the battery pack comprising: a box having a receiving cavity provided therein; a battery pack disposed in the receiving cavity, the battery pack comprising a first main output row and a second main output row with opposite polarities; a connector comprising a first connecting portion and a second connecting portion spaced apart, the first connecting portion and the second connecting portion both being disposed in the receiving cavity and both being located on one side of the battery pack along the first direction, the first connecting portion being electrically connected to the first main output row, and the second connecting portion being electrically connected to the second main output row; a protective cover disposed in the receiving cavity, the protective cover comprising an upper cover, a shell and a flexible connector, the shell having a receiving cavity, the first connecting portion and the second connecting portion being disposed in the receiving cavity, the upper cover covering the shell and being rotatably connected to the shell via the flexible connector, the shell comprising a first side wall and a second side wall disposed opposite to each other, the end of the first main output row adjacent to the first side wall being passed through the first side wall, and the end of the second main output row adjacent to the second side wall being passed through the second side wall.

[0006] Optionally, in an embodiment of the present application, the battery pack also has a second direction intersecting with the first direction; the shell also includes a third side wall and a fourth side wall arranged opposite to each other along the first direction, the first side wall and the second side wall are arranged opposite to each other along the second direction, and the first side wall, the second side wall, the third side wall, and the fourth side wall are interconnected to form the accommodating cavity; along the first direction, one end of the upper cover is rotatably connected to the third side wall through the flexible connector, and the other end is detachably connected to the fourth side wall.

[0007] Optionally, in an embodiment of the present application, the battery pack further has a third direction, and the first direction, the second direction and the third direction intersect with each other; the shell further includes a partition wall, which is arranged in the receiving cavity, and the partition wall is respectively connected to the third side wall and the fourth side wall, and the partition wall divides the receiving cavity into a first receiving sub-cavity and a second receiving sub-cavity, the first connecting portion is arranged in the first receiving sub-cavity, and the second connecting portion is arranged in the second receiving sub-cavity.

[0008] Optionally, in an embodiment of the present application, the connector further comprises a main body portion, wherein along the first direction, the end of the main body portion close to the battery pack is connected to both the first connecting portion and the second connecting portion, and the end of the main body portion away from the battery pack is connected to the box body; along the third direction, the main body portion has a first end face facing the upper cover, the third side wall is arranged close to the main body portion, and the third side wall abuts against the first end face.

[0009] Optionally, in an embodiment of the present application, along the third direction, a receiving groove is provided on the side of the third side wall facing the first end face, part of the main body is embedded in the receiving groove, and the first end face abuts against the groove wall of the receiving groove.

[0010] Optionally, in an embodiment of the present application, the connector further comprises a partition plate, which is connected to the main body portion, and the partition plate is arranged between the first connecting portion and the second connecting portion along the second direction, and the partition plate extends along the third direction, and the partition plate abuts against the partition wall to divide the receiving cavity into the first receiving sub-cavity and the second receiving sub-cavity.

[0011] Optionally, in an embodiment of the present application, a first groove is formed on the first side wall, and a second groove is formed on the second side wall, and the first groove and the second groove are arranged opposite to each other;

[0012] One end of the first total output row close to the first side wall is passed through the first groove, and one end of the second total output row close to the second side wall is passed through the second groove.

[0013] Optionally, in an embodiment of the present application, a clearance groove is provided on a side of the upper cover facing the shell, and the clearance groove is recessed along the third direction away from the connector; a first protrusion is provided on a side of the third side wall facing the upper cover, and a second protrusion is provided on a side of the fourth side wall facing the upper cover, and both the first protrusion and the second protrusion are engaged with the clearance groove.

[0014] Optionally, in an embodiment of the present application, the upper cover, the shell and the flexible connector are integrally formed.

[0015] Accordingly, an electrical device described in an embodiment of the present application includes a battery pack as described in any one of the aforementioned embodiments.

[0016] Beneficial effects: In the embodiment of the present application, the case of the battery pack is provided to protect the components within the accommodating cavity. The first and second main output rows are provided to be connected to the connector, and the connector has a first connection portion and a second connection portion, wherein the first connection portion is connected to the first main output row, and the second connection portion is connected to the second main output row, thereby realizing an electrical connection between the connector and the battery pack. The battery pack also includes a protective cover, which includes an upper cover, a shell, and a flexible connector. The shell has a receiving cavity, and the first and second connection portions of the connector, part of the first main output row, and part of the second main output row are all arranged in the receiving cavity. The upper cover is rotatably connected to the shell through a flexible connector. In actual application, the upper cover can be closed on the shell to cover the first and second connection portions of the connector, part of the first main output row, and part of the second main output row within the shell, thereby playing a role in covering and protecting the first and second connection portions and the components connected thereto (part of the first main output row and part of the second main output row), and preventing high voltage leakage. The end of the first main output row near the first side wall is inserted through the first side wall, and the end of the second main output row near the second side wall is inserted through the second side wall. The first connecting portion is fixedly connected to the first main output row, and the second connecting portion is fixedly connected to the second main output row. This allows the housing to be positioned without the need for additional positioning members, and protects the first and second main output rows within the housing cavity. In addition, the provision of a rotatable flexible connector allows the upper cover and housing to be connected together, making the connection simple and convenient, helping to improve assembly efficiency and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is a schematic diagram of a top view of a battery pack in an embodiment of the present application;

[0018] Figure 2 In the embodiment of this application Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 This is a schematic structural diagram of the first main output row, the second main output row, the protective cover and the connector of the battery pack in an embodiment of the present application;

[0020] Figure 4 This is a schematic structural diagram from another angle of the first total output row, the second total output row, the protective cover, and the connector of the battery pack in an embodiment of the present application;

[0021] Figure 5 This is a schematic structural diagram of a connector in an embodiment of the present application;

[0022] Figure 6 This is a schematic structural diagram of the protective cover in an embodiment of the present application;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the protective cover and the connector in the embodiment of the present application.

[0024] Description of reference numerals:

[0025] 1. Box body; 11. Accommodation cavity; 2. Battery pack; 21. First total output row; 22. Second total output row; 3. Connector; 30. Main body; 301. First end face; 31. First connecting portion; 32. Second connecting portion; 33. Partition plate; 4. Protective cover; 41. Upper cover; 411. Makeway groove; 42. Shell; 420. Accommodation cavity; 4201. First accommodating sub-cavity; 4202. Second accommodating sub-cavity; 421. First side wall; 4211. First groove; 422. Second side wall; 4221. Second groove; 423. Third side wall; 4231. Accommodation groove; 4232. First protrusion; 424. Fourth side wall; 4241. Second protrusion; 425. Partition wall; 4251. Wall body; 4252. Reinforcement portion; 43. Flexible connector; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0028] The high-voltage protective cover and the power battery provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0029] See also Figures 1 to 7 An embodiment of the present application provides a battery pack having a first direction X, the battery pack comprising: a box body 1, a receiving cavity 11 being provided inside the box body 1; a battery pack 2, the battery pack 2 being arranged in the receiving cavity 11, the battery pack 2 comprising a first total output row 21 and a second total output row 22 with opposite polarities; a connector 3, the connector 3 comprising a first connecting portion 31 and a second connecting portion 32 arranged at intervals. The first connection portion 31 and the second connection portion 32 are both disposed within the accommodating chamber 11 and are both located on one side of the battery pack 2 along the first direction X. The first connection portion 31 is electrically connected to the first total output bar 21, and the second connection portion 32 is electrically connected to the second total output bar 22. A protective cover 4 is disposed within the accommodating chamber 11 and includes an upper cover 41, a shell 42, and a flexible connector 43. The shell 42 has an accommodating chamber 420. The first connection portion 31 and the second connection portion 32 are disposed within the accommodating chamber 420. The upper cover 41 covers the shell 42 and is rotatably connected to the shell 42 via the flexible connector 43. The shell 42 includes a first side wall 421 and a second side wall 422 disposed opposite each other. The end of the first total output bar 21 proximate to the first side wall 421 is disposed through the first side wall 421, and the end of the second total output bar 22 proximate to the second side wall 422 is disposed through the second side wall 422. The connector 3 is a high-voltage connector. In one embodiment, the first connection portion 31 and the second connection portion 32 may be conductive electrodes of a high voltage connector.

[0030] In the embodiment of the present application, the first direction X is along the length of the battery pack. The housing 1 is configured to protect the components within the housing cavity 11. The first and second output bars 21, 22 are configured to connect to the connector 3. The connector 3 has a first connection portion 31 and a second connection portion 32. The first connection portion 31 connects to the first output bar 21, and the second connection portion 32 connects to the second output bar 22, thereby achieving an electrical connection between the connector 3 and the battery pack 2. Furthermore, the battery pack includes a protective cover 4, which is configured to prevent high voltage leakage from the connector 3. The housing 42 has a receiving cavity 420, within which the connector 3, a portion of the first output bar 21, and a portion of the second output bar 22 can be disposed. The upper cover 41 is rotatably connected to the housing 42 via a flexible connector 43. In actual use, the upper cover 41, when placed on the housing 42, can conceal the connector 3, a portion of the first output bar 21, and a portion of the second output bar 22 within the housing 42, thereby providing a shield for the connector 3. Furthermore, the first side wall 421 and the second side wall 422 are configured to position and constrain the first and second main output banks 21, 22. The end of the first main output bank 21, which is adjacent to the first side wall 421, is passed through the first side wall 421, while the end of the second main output bank 22, which is adjacent to the second side wall 422, is passed through the second side wall 422. Furthermore, the first connecting portion 31 is fixedly connected to the first main output bank 21, while the second connecting portion 32 is fixedly connected to the second main output bank 22. This allows for positioning of the housing 42 without requiring additional positioning members, and protects the first and second main output banks 21, 22 within the receiving cavity 420 of the housing 42.

[0031] In the embodiment of the present application, the upper cover 41 and the housing 42 can be connected together by the provision of a rotatable flexible connector 43, and the rotatable structural design also has the beneficial effect of improving assembly efficiency and saving costs. In addition, the design of the first side wall 421 and the second side wall 422 realizes the positioning and restraint of the first total output row 21 and the second total output row 22. The first total output row 21 and the second total output row 22 no longer need to be connected to the box body 1 to position the protective cover 4, which has the beneficial effect of simplifying the positioning method. In addition, after the upper cover 41 is covered on the housing 42, it can cover the connector 3, which has the beneficial effect of protecting the connector 3.

[0032] It should be noted that the flexible connector 43 is made of insulating material to avoid short circuit between the connector 3 , the first main output bar 21 and the second main output bar 22 .

[0033] Further, it is assumed that the thickness of the flexible connector 43 is h, the thickness of the upper cover 41 is H1, and the thickness of the shell 42 is H2, wherein h ​

[0034] Furthermore, the thickness of the flexible connector 43 is less than or equal to 0.1 mm and greater than or equal to 0.5 mm.

[0035] Optionally, in an embodiment of the present application, the battery pack further has a second direction Y intersecting with the first direction X; the shell 42 further includes a third side wall 423 and a fourth side wall 424 arranged opposite to each other along the first direction X, the first side wall 421 and the second side wall 422 are arranged opposite to each other along the second direction Y, and the first side wall 421, the second side wall 422, the third side wall 423, and the fourth side wall 424 are interconnected to form a receiving cavity 420; along the first direction X, one end of the upper cover 41 is rotatably connected to the third side wall 423 through a flexible connector 43, and the other end is detachably connected to the fourth side wall 424.

[0036] In the embodiment of the present application, the second direction Y is the width direction of the battery pack. The third side wall 423 and the fourth side wall 424 are arranged relative to each other along the first direction X, and the first side wall 421 and the second side wall 422 are arranged relative to each other along the second direction Y. Furthermore, the first side wall 421, the second side wall 422, the third side wall 423, and the fourth side wall 424, which are connected end to end, enclose and form the accommodating cavity 11. It is understood that the first side wall 421, the second side wall 422, the third side wall 423, and the fourth side wall 424 respectively provide cover protection for the connector 3 from the first direction X and the second direction Y. In actual applications, one end of the upper cover 41 can be connected to the third side wall 423 via a flexible connector 43. Since the flexible connector 43 is deformable, the flexible connector 43 can rotate with the connection portion of the third side wall 423 as a rotating axis, thereby achieving a detachable connection between the other end of the upper cover 41 and the fourth side wall 424. Furthermore, when the other end of the upper cover 41 is connected to the fourth side wall 424, the upper cover 41 covers the shell 42 to provide covering protection for the connector 3; when the other end of the upper cover 41 is separated from the fourth side wall 424, the connector 3 can be placed in the accommodating cavity 420 to realize the installation between the connector 3 and the high-voltage protective cover 4.

[0037] Optionally, in an embodiment of the present application, the battery pack further has a third direction Z, and the first direction X, the second direction Y and the third direction Z intersect in pairs; the shell 42 further includes a partition wall 425, which is arranged in the receiving cavity 420, and the partition wall 425 is respectively connected to the third side wall 423 and the fourth side wall 424, and the partition wall 425 divides the receiving cavity 420 into a first receiving sub-cavity 4201 and a second receiving sub-cavity 4202, the first connecting portion 31 is arranged in the first receiving sub-cavity 4201, and the second connecting portion 32 is arranged in the second receiving sub-cavity 4202.

[0038] In the embodiment of the present application, the third direction Z is the thickness direction of the battery pack. The partition wall 425 is configured to separate the receiving chamber 420 into a first receiving sub-chamber 4201 and a second receiving sub-chamber 4202. The first receiving sub-chamber 4201 is configured to receive the first connecting portion 31, and the second receiving sub-chamber 4202 is configured to receive the second connecting portion 32. Furthermore, the first main output row 21 connected to the first connecting portion 31 and the second main output row 22 connected to the second connecting portion 32 are separated by the partition wall 425, which has the beneficial effect of separating the first connecting portion 31 from the second connecting portion 32, and the first main output row 21 from the second main output row 22.

[0039] Optionally, in an embodiment of the present application, the connector 3 further includes a main body portion 30, the end of the main body portion 30 close to the battery pack 2 is connected to both the first connecting portion 31 and the second connecting portion 32, and the end of the main body portion 30 away from the battery pack 2 is connected to the box body 1; along the third direction Z, the main body portion 30 has a first end face 301 facing the upper cover 41, and the third side wall 423 is arranged close to the main body portion 30, and the third side wall 423 abuts against the first end face 301.

[0040] In the embodiment of the present application, the end of the main body 30 away from the battery pack 2 is connected to the case 1, while the end of the main body 30 closer to the battery pack 2 is connected to the first connecting portion 31 and the second connecting portion 32, respectively. The connection of the main body 30 to the case 1 is used to achieve a fixed connection between the connector 3 and the case 1. In actual use, the first end surface 301 of the main body 30 abuts the third side wall 423, thereby positioning and restraining the main body 30 with the third side wall 423, which has the beneficial effect of improving the stability of the main body 30.

[0041] Optionally, in an embodiment of the present application, along the third direction Z, a receiving groove 4231 is opened on the side of the third side wall 423 facing the first end face 301, part of the main body 30 is embedded in the receiving groove 4231, and the first end face 301 abuts against the groove wall of the receiving groove 4231.

[0042] In the embodiment of the present application, the arrangement of the accommodating groove 4231 is used to provide an accommodating space for the main body 30. Specifically, part of the main body 30 is embedded in the accommodating groove 4231, and the first end face 301 abuts against the groove wall. It can be understood that the arrangement of the accommodating groove 4231 realizes positioning and restraint of the main body 30, and the groove wall forms a limiting effect on the first end face 301, which has the beneficial effect of improving the stability of the main body 30.

[0043] Optionally, in an embodiment of the present application, the connector 3 further includes a spacer 33, which is connected to the main body 30, and is arranged between the first connecting portion 31 and the second connecting portion 32 along the second direction Y. The spacer 33 extends along the third direction Z, and the spacer 33 abuts against the partition wall 425 to separate the first receiving sub-cavity 4201 and the second receiving sub-cavity 4202 along the second direction Y.

[0044] In the embodiment of the present application, the partition plate 33 is provided to separate the first connection portion 31 from the second connection portion 32. It is understood that it also separates the first main output bank 21 from the second main output bank 22, thereby preventing a short circuit between the first main output bank 21 and the second main output bank 22. Furthermore, the partition plate 33 extends away from the main body 30 along the third direction Z, and the partition plate 33 abuts against the partition wall 425. It is understood that the abutting partition plate 33 and the partition wall 425 completely separate the first connection portion 31 from the second connection portion 32, as well as the first main output bank 21 and the second main output bank 22, along the second direction Y.

[0045] Optionally, in an embodiment of the present application, a first groove 4211 is provided on the first side wall 421, and a second groove 4221 is provided on the second side wall 422, and the openings of the first groove 4211 and the second groove 4221 are both facing the upper cover 41; the first total output row 21 is provided in the first groove 4211, and the second total output row 22 is provided in the second groove 4221.

[0046] In an embodiment of the present application, in actual application, when the upper cover 41 and the shell 42 are separated, the connector 3 is assembled in the shell 42 along the third direction Z, and the first groove 4211 is set to achieve positioning and restraint for the first total output row 21. After the assembly is completed, the first total output row 21 is assembled in the accommodating groove 4231 in the first groove 4211, and the second groove 4221 is set to achieve positioning and restraint for the second total output row 22. The second total output row 22 is accommodated in the second groove 4221.

[0047] It should be noted that the groove wall of the first groove 4211 may not be in contact with the first total output row 21. A small gap may be provided between the groove wall of the first groove 4211 and the first total output row 21, thereby achieving positioning and constraint between the first groove 4211 and the first total output row 21 through a small gap fit. Similarly, the groove wall of the second groove 4221 may not be in contact with the second total output row 22. A small gap may be provided between the groove wall of the second groove 4221 and the second total output row 22, thereby achieving positioning and constraint between the second groove 4221 and the second total output row 22 through a small gap fit.

[0048] Furthermore, the above-mentioned small clearance fit setting can not only achieve the positioning and constraint of the first total output row 21 and the second total output row 22, but also avoid the problem of being unable to assemble the connector 3 into the protective cover 4 due to errors during the assembly process.

[0049] Optionally, in an embodiment of the present application, a clearance groove 411 is provided on a side of the upper cover 41 facing the shell 42, and the clearance groove 411 is recessed along the third direction Z away from the connector 3; a first protrusion 4232 is provided on the side of the third side wall 423 facing the upper cover 41, and a second protrusion 4241 is provided on the side of the fourth side wall 424 facing the upper cover 41, and both the first protrusion 4232 and the second protrusion 4241 are snap-fitted into the clearance groove 411.

[0050] In the embodiment of the present application, the clearance groove 411 is configured to simultaneously cooperate with the first protrusion 4232 and the second protrusion 4241, thereby achieving a tight fit between the upper cover 41 and the housing 42, further enabling the upper cover 41 to cover the connector 3, thereby improving the protection level of the protective cover 4. Specifically, the clearance groove 411 is recessed along the third direction Z, and the engagement between the first protrusion 4232 and the second protrusion 4241 and the clearance groove 411 has the beneficial effect of improving the covering and sealing function of the protective cover 4.

[0051] Optionally, in the embodiment of the present application, the upper cover 41, the shell 42 and the flexible connector 43 are integrally formed.

[0052] In the embodiment of the present application, the integrally formed upper cover 41, shell 42 and flexible connector 43 make the above three components a whole, without having to be split into the upper cover 41 and shell 42 and separate connectors and other parts, which has the beneficial effects of improving assembly efficiency, saving costs and facilitating assembly.

[0053] Optionally, in an embodiment of the present application, the partition wall 425 includes a wall body 4251 and a reinforcement portion 4252, the wall body 4251 has a hollow cavity, the opening of the hollow cavity faces the upper cover 41, the reinforcement portion 4252 is arranged in the hollow cavity, and is connected to the wall body 4251 along the second direction Y.

[0054] In the embodiment of the present application, the provision of the hollow cavity can, on the one hand, reduce the weight of the protective cover 4, thereby having the beneficial effect of reducing the weight of the battery pack. On the other hand, the provision of the hollow cavity also has the beneficial effect of improving the deformability of the wall 4251. In actual application, when the battery pack is subjected to external force, the wall 4251 may also be subjected to external force. The wall 4251 resists the external force and deforms, thereby absorbing energy and thus protecting the connector 3. Furthermore, a reinforcement portion 4252 is provided within the hollow cavity. The provision of the reinforcement portion 4252 has the beneficial effect of increasing the structural strength of the wall 4251 from within the hollow cavity.

[0055] Accordingly, an electrical device described in an embodiment of the present application includes a battery pack as described in the aforementioned embodiment.

[0056] It can be understood that the electrical device of the present application includes all the technical features and technical effects of the battery pack in the aforementioned embodiments, which will not be repeated here.

[0057] Of course, the electrical devices referred to in this application can be application devices such as vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys and electric tools. Vehicles can be new energy vehicles, which can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.; spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc. The embodiments of this application do not impose any special restrictions on the above-mentioned electrical devices.

[0058] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0059] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A battery pack having a first direction (X), characterized in that: The battery pack includes: A box body (1), wherein a receiving cavity (11) is provided inside the box body (1); A battery pack (2), the battery pack (2) being arranged in the accommodating cavity (11), the battery pack (2) comprising a first total output row (21) and a second total output row (22) having opposite polarities; A connector (3), the connector (3) comprising a first connecting portion (31) and a second connecting portion (32) arranged at intervals, the first connecting portion (31) and the second connecting portion (32) both being arranged in the accommodating cavity (11) and both being located on one side of the battery pack (2) along the first direction (X); the first connecting portion (31) being electrically connected to the first total output row (21), and the second connecting portion (32) being electrically connected to the second total output row (22); A protective cover (4), the protective cover (4) is arranged in the accommodating cavity (11), the protective cover (4) comprises an upper cover (41), a shell (42) and a flexible connector (43), the shell (42) has a accommodating cavity (420), the first connecting portion (31) and the second connecting portion (32) are arranged in the accommodating cavity (420), the upper cover (41) covers the shell (42), and the upper cover (41) is rotatably connected to the shell (42) through the flexible connector (43), the shell (42) comprises a first side wall (421) and a second side wall (422) arranged opposite to each other, an end of the first total output row (21) close to the first side wall (421) is passed through the first side wall (421), and an end of the second total output row (22) close to the second side wall (422) is passed through the second side wall (422).

2. The battery pack according to claim 1, wherein: The battery pack further has a second direction (Y) intersecting the first direction (X); The housing (42) further comprises a third side wall (423) and a fourth side wall (424) arranged opposite to each other along the first direction (X); the first side wall (421) and the second side wall (422) are arranged opposite to each other along the second direction (Y); the first side wall (421), the second side wall (422), the third side wall (421), and the fourth side wall (422) are connected to each other to form the receiving cavity (420); Along the first direction (X), one end of the upper cover (41) is rotatably connected to the third side wall (423) via the flexible connector (43), and the other end is detachably connected to the fourth side wall (424).

3. The battery pack according to claim 2, wherein: The battery pack further has a third direction (Z), and the first direction (X), the second direction (Y), and the third direction (Z) intersect with each other; The shell (42) further includes a partition wall (425), which is arranged in the receiving chamber (420), and the partition wall (425) is connected to the third side wall (423) and the fourth side wall (424) respectively. The partition wall (425) divides the receiving chamber (420) into a first receiving sub-chamber (4201) and a second receiving sub-chamber (4202), and the first connecting portion (31) is arranged in the first receiving sub-chamber (4201), and the second connecting portion (32) is arranged in the second receiving sub-chamber (4202).

4. The battery pack according to claim 3, wherein: The connector (3) further comprises a main body (30), wherein along the first direction (X), an end of the main body (30) close to the battery pack (2) is connected to both the first connecting portion (31) and the second connecting portion (32), and an end of the main body (30) away from the battery pack (2) is connected to the box (1); Along the third direction (Z), the main body (30) has a first end surface (301) facing the upper cover (41), the third side wall (423) is arranged close to the main body (30), and the third side wall (423) abuts against the first end surface (301).

5. The battery pack according to claim 4, characterized in that: Along the third direction (Z), the third side wall (423) is provided with a receiving groove (4231) on one side facing the first end face (301), part of the main body (30) is embedded in the receiving groove (4231), and the first end face (301) abuts against the groove wall of the receiving groove (4231).

6. The battery pack according to claim 4, characterized in that: The connector (3) further includes a spacer (33), which is connected to the main body (30), and is arranged between the first connecting portion (31) and the second connecting portion (32) along the second direction (Y). The spacer (33) extends along the third direction (Z), and the spacer (33) abuts against the partition wall (425) to separate the receiving cavity (420) into a first receiving sub-cavity (4201) and a second receiving sub-cavity (4202).

7. The battery pack according to claim 1, wherein: The first side wall (421) is provided with a first groove (4211), and the second side wall (422) is provided with a second groove (4221), and the first groove (4211) and the second groove (4221) are arranged opposite to each other; One end of the first total output row (21) close to the first side wall (421) is inserted into the first groove (4211), and one end of the second total output row (22) close to the second side wall (422) is inserted into the second groove (4222).

8. The battery pack according to claim 2, wherein: A clearance groove (411) is provided on one side of the upper cover (41) facing the housing (42), and the clearance groove (411) is recessed in a direction away from the connector (3) along the third direction (Z); A first protrusion (4232) is provided on the side of the third side wall (423) facing the upper cover (41), and a second protrusion (4241) is provided on the side of the fourth side wall (424) facing the upper cover (41), and both the first protrusion (4232) and the second protrusion (4241) are engaged with the clearance groove (411).

9. The battery pack according to claim 1, wherein: The upper cover (41), the shell (42) and the flexible connector (43) are integrally formed.

10. An electrical device, characterized in that: A battery pack comprising the battery pack according to any one of claims 1 to 9.

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