Battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, and discloses a battery pack and electric equipment, the battery pack has a first direction, the battery pack comprises a box body, the box body comprises a bottom plate and a frame which are connected with each other, the frame surrounds the bottom plate, and an accommodating cavity is enclosed by the frame and the bottom plate; the battery pack is arranged in the accommodating cavity and comprises an output row; the switching bar is arranged in the containing cavity, the switching bar is provided with a switching end, the switching end is located on one side of the battery pack in the first direction, the switching bar is electrically connected with the output bar, and the polarity of the switching bar is the same as that of the output bar; the supporting base is arranged in the containing cavity and located on one side of the battery pack in the first direction, the transfer bar and the output bar are both connected with the supporting base, and the end, close to the frame, of the supporting base is connected with the frame in the first direction. According to the battery pack disclosed by the utility model, the connection part of the adapter bar and the output bar can be supported by utilizing the supporting seat, so that the connection reliability between the adapter bar and the output bar is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field, concretely relates to a battery pack and electric equipment. BACKGROUND

[0002] The battery pack in prior art, the battery pack is usually connected with other electrical components through the adapter row, but in some cases, the adapter row is heavy and long, which results in that the connection between the adapter row and the battery pack is under great stress, and the connection reliability of the adapter row and the battery pack is poor. SUMMARY

[0003] Therefore, the utility model provides a battery pack to solve the problem of great stress and poor connection reliability at the connection between the adapter row and the output row.

[0004] In the first aspect, the utility model provides a battery pack with a first direction, which comprises a box body, a battery pack and an adapter row.

[0005] The support seat can support the adapter row and the output row, avoid the connection between the adapter row and the output row under great stress, and reduce the stress at the connection between the output row and the battery pack, so as to reduce the probability of separation between the adapter row and the output row, and the probability of separation between the output row and the battery pack, improve the connection reliability of the adapter row and the output row, and the connection reliability between the output row and the battery pack, prevent the stress at the welding of the output row, the adapter row and the battery pack from falling off, resulting in the failure of electrical connection, ensure the stability of electrical connection, and further ensure the normal operation of the battery pack.

[0006] In an alternative embodiment, the battery pack further has a second direction intersecting the first direction, and the support base comprises: a base connected with the frame; a shielding wall arranged on the base along the second direction, the shielding wall being connected with the base, the shielding wall and the base enclosing a protection cavity, the output row comprising output terminals, the adapter row comprising adapter terminals, the output terminals and the adapter terminals being electrically connected, at least part of the output terminals and at least part of the adapter terminals being located in the protection cavity, and the output terminals and the adapter terminals both being connected with the base.

[0007] Beneficial effects: on the one hand, the adapter terminals and the output terminals are shielded, improving the electrical safety of the battery pack; on the other hand, the adapter terminals and the output terminals are limited, improving the connection reliability of the adapter terminals and the output terminals.

[0008] In an alternative embodiment, the shielding wall is provided with an avoiding gap, the avoiding gap being in communication with the protection cavity, and the adapter terminals are arranged in the avoiding gap and / or the output terminals are arranged in the avoiding gap.

[0009] Beneficial effects: avoiding interference between the shielding wall and the adapter terminals or the output terminals.

[0010] In an alternative embodiment, the base comprises: a first connecting part connected with the frame; a supporting part arranged on the first connecting part towards the battery pack along the first direction, the supporting part being connected with the first connecting part, and the shielding wall encloses the protection cavity around the supporting part.

[0011] Beneficial effects: the distance between the output terminals and the adapter terminals and the frame can be increased, the probability of contact between the battery pack and the frame is further reduced while ensuring effective support for the output terminals and the adapter terminals.

[0012] In an alternative embodiment, the battery pack further has a third direction intersecting both the first direction and the second direction, and the support base further comprises: at least two reinforcing ribs arranged on the first connecting part along the second direction, the at least two reinforcing ribs being arranged at intervals along the third direction, the reinforcing ribs being located on the side of the shielding wall away from the battery pack along the first direction, and the reinforcing ribs being connected with both the first connecting part and the shielding wall.

[0013] Beneficial effects: the structural strength of the first connecting part can be improved, avoiding damage of the first connecting part due to stress concentration.

[0014] In an alternative embodiment, a limiting groove is arranged on the side of the frame towards the battery pack along the first direction, and the reinforcing ribs have guiding ends on the side away from the shielding wall, the limiting groove and the guiding ends being inserted.

[0015] Beneficial effects: During the installation process of the frame and the support base, the guide end can play a guiding role, facilitating the insertion of the guide end into the limiting groove, and improving the assembly efficiency.

[0016] In an alternative embodiment, the battery pack further comprises: a bracket arranged in the accommodating cavity and disposed on the same side of the support base, the bracket comprising a second connecting portion and a third connecting portion connected to each other, the base being arranged on the second connecting portion in the second direction, the second connecting portion being connected to the base, and the third connecting portion being connected to the frame.

[0017] Beneficial effects: The support base and the frame are connected through the bracket, which facilitates the separate processing and manufacturing of the support base and the frame, and makes the shapes of the support base and the frame more diverse and the connection more flexible.

[0018] In an alternative embodiment, the support base further comprises a boss connected to the base on the side close to the bottom plate in the second direction, and the second connecting portion is provided with a through hole, and the boss is arranged in the through hole; the battery pack further comprises a connecting piece, the boss is provided with a groove, and one end of the connecting piece away from the base is connected to the adapter end and the output end in the second direction, and the other end is inserted into the groove.

[0019] Beneficial effects: On the one hand, the reliability of the fixation of the second connecting portion, the adapter end and the output end is increased, and on the other hand, the pre-positioning between the support base and the bracket is realized, improving the convenience of installation.

[0020] In an alternative embodiment, the battery pack further comprises: a protective cover arranged on the support base in the second direction, detachably connected to the shielding wall, and covering the protective cavity.

[0021] Beneficial effects: On the one hand, the adapter end and the output end are shielded, improving the electrical safety of the battery pack, and on the other hand, the adapter end and the output end are limited, improving the connection reliability of the adapter end and the output end.

[0022] Secondly, the utility model provides a kind of electric equipment, including the battery pack of first aspect.

[0023] Beneficial effects: the electric equipment of the utility model, by using the battery pack of first aspect, support base can play the role of supporting adapter row and output row, avoid the connection of adapter row and output row to be stressed too much, reduce the probability of separation between adapter row and output row. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0025] Figure 1 The structure schematic view of the battery pack of the embodiment of the present application;

[0026] Figure 2 The connection schematic view of the box, the battery pack, the support seat and the adapter row of the embodiment of the present application;

[0027] Figure 3 The structure schematic view of the support seat of the embodiment of the present application; Figure 2 The local enlarged view of the area A in the middle;

[0028] Figure 4 The sectional view of the battery pack of the embodiment of the present application;

[0029] Figure 5 The structure schematic view of the support seat of the embodiment of the present application; Figure 4 The local enlarged view of the area B in the middle;

[0030] Figure 6 The connection schematic view of the support, the support seat and the protective cover of the embodiment of the present application;

[0031] Figure 7 The connection schematic view of the support seat, the adapter row and the output row of the embodiment of the present application;

[0032] Figure 8 The structure schematic view of the support seat of the embodiment of the present application;

[0033] Figure 9 The structure schematic view of the support seat of the embodiment of the present application.

[0034] Explanation of reference signs:

[0035] 1, battery pack;

[0036] 100, box; 101, containing cavity; 110, bottom plate; 120, frame;

[0037] 200, adapter row; 210, adapter end;

[0038] 300, battery pack; 310, output row; 320, output end;

[0039] 400, support seat; 411, base; 4111, support part; 4112, first connecting part; 412, shielding wall; 413, avoiding gap; 414, reinforcing rib; 415, guide end; 416, boss; 417, groove; 418, protection cavity;

[0040] 500, protective cover;

[0041] 600, support; 610, second connecting part; 611, first bolt; 612, through hole; 620, third connecting part; 621, second bolt;

[0042] 700, connecting piece. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0044] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In the description of the present application, the meaning of "multiple" is two or more. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] The embodiments of the present application are described below in conjunction with Figures 1 to 9

[0048] In a first aspect, the embodiments of the present application provide a battery pack 1, which has a first direction X. The battery pack 1 comprises a box body 100, an adapter row 200, a battery group 300 and a support seat 400.

[0049] The box body 100 comprises a bottom plate 110 and a frame 120 connected with each other, the frame 120 surrounds the bottom plate 110, and the frame 120 and the bottom plate 110 enclose a containing cavity 101. The battery group 300 is arranged in the containing cavity 101, the battery group 300 comprises an output row 310, the adapter row 200 is arranged in the containing cavity 101, the adapter row 200 is located at one side of the battery group 300 along the first direction X, the adapter row 200 and the output row 310 are electrically connected, and the adapter row 200 and the output row 310 have the same polarity (for example, the adapter row 200 and the output row 310 are both connected to the positive electrode or the negative electrode of the battery group 300). The support seat 400 is arranged in the containing cavity 101, the support seat 400 is located at one side of the battery group 300 along the first direction X, and the adapter row 200 and the output row 310 are both connected with the support seat 400. Along the first direction X, one end of the support seat 400 close to the frame 120 is connected with the frame 120.

[0050] For example, the battery group 300 can comprise a plurality of batteries, and the plurality of batteries can be connected in series or in parallel. The containing cavity 101 can be filled with foamed glue to improve the strength of the battery pack 1. In addition, the battery group 300 can comprise two output rows 310, one output row 310 is configured as a positive electrode output row and the other output row 310 is configured as a negative electrode output row. The battery group 300 can output electric energy to the outside through the output row 310 and the adapter row 200.

[0051] The output row 310 can be a conductive copper row, the support seat 400 can be made of insulating material, the outer surface of the adapter row 200 is covered with an insulating layer, the insulating layer can be a heat-shrinkable sleeve or an insulating material coating layer, so as to avoid the electrical connection between the frame 120 and the battery group 300, prevent the frame 120 from being electrified, and improve the safety of the battery pack 1.

[0052] ​By setting the support seat 400, the support adapter row 200 and the output row 310 can be supported, avoiding excessive force on the connection between the adapter row 200 and the output row 310, and the force on the connection between the output row 310 and the battery pack 300 will also decrease, which can reduce the probability of separation between the adapter row 200 and the output row 310, and the probability of separation between the output row 310 and the battery pack 300, improve the connection reliability of the adapter row 200 and the output row 310, and the connection reliability between the output row 310 and the battery pack 300, prevent the welding force of the output row 310, the adapter row 200 and the battery pack 300 from falling off, causing electrical connection failure, ensuring stable electrical connection, and thus ensuring normal operation of the battery pack 1.

[0053] In addition, since the support seat 400 supports the adapter row 200, the position stability of the adapter row 200 is increased, so the length of the adapter row 200 can be set longer to facilitate the connection of the internal circuit of the battery pack 1. Moreover, the support seat 400 is installed on the frame 120, which can improve the installation convenience of the support seat 400, and make full use of the space of the accommodation cavity 101.

[0054] As shown in Figures 7-9 In the technical solution of the present embodiment, the battery pack 1 also has a second direction Z intersecting the first direction X. The support seat 400 includes a base 411 and a shielding wall 412, the base 411 is connected with the frame 120, the output row 310 and the adapter row 200 are supported on the base 411, the shielding wall 412 is provided on the base 411 along the second direction Z, the shielding wall 412 and the base 411 are connected, the shielding wall 412 and the base 411 enclose a protection cavity 418, the output row 310 includes an output end 320, the adapter row 200 includes an adapter end 210, the output end 320 and the adapter end 210 are electrically connected, at least part of the output end 320 and at least part of the adapter end 210 are located in the protection cavity 418, and the output end 320 and the adapter end 210 are both connected with the base 411.

[0055] By setting the shielding wall 412, on the one hand, the adapter end 210 and the output end 320 can be prevented from being exposed to the accommodation cavity 101, reducing the probability of electrical connection between the adapter end 210 and the output end 320 and the outside world, and improving the electrical safety of the battery pack 1, on the other hand, the adapter end 210 and the output end 320 can be limited, avoiding collision between the adapter end 210 and the output end 320 and the outside world, thereby ensuring the stability of the connection between the adapter end 210 and the output end 320.

[0056] As shown in Figure 7 and Figure 8As shown, in the technical scheme of the embodiment, the shielding wall 412 is provided with an avoiding gap 413, the avoiding gap 413 is in communication with the protection cavity 418, the adapter end 210 is arranged in the avoiding gap 413, or the output end 320 is arranged in the avoiding gap 413, or both the adapter end 210 and the output end 320 are arranged in the avoiding gap 413.

[0057] In this way, while avoiding interference between the shielding wall 412 and the adapter end 210 or the output end 320, the structure of the adapter end 210 and the output end 320 does not need to avoid the shielding wall 412, which facilitates the structure of the adapter end 210 and the output end 320, and the adapter end 210, the output end 320 and the base 411 can be arranged in parallel with each other, that is, the adapter end 210, the output end 320 and the base 411 can be stacked along the first direction X, and the contact area between the adapter end 210, the output end 320 and the base 411 is large, which can not only ensure the connection reliability of the adapter end 210 and the output end 320, but also enable the adapter end 210 and the output end 320 to be stably placed on the base 411, thereby ensuring the supporting effect.

[0058] As shown in the figure, Figure 6 As shown, in the technical scheme of the embodiment, the battery pack 1 further comprises a protection cover 500, the protection cover 500 is arranged on the support seat 400 along the second direction Z, the protection cover 500 is detachably connected with the shielding wall 412, the protection cover 500 covers the protection cavity 418, that is, the protection cover 500 covers the output end 320 and the adapter end 210. The protection cover 500 is made of insulating material. The protection cover 500 and the shielding wall 412 can be connected by clamping, bolt connection or sliding connection, and other detachable connection modes.

[0059] By arranging the protection cover 500, on the one hand, the adapter end 210 and the output end 320 can be prevented from being exposed to the accommodating cavity 101, thereby reducing the probability of electrical connection between the adapter end 210 and the output end 320 and the outside world, and improving the electrical safety of the battery pack 1, on the other hand, the adapter end 210 and the output end 320 can be limited, thereby avoiding collision between the adapter end 210 and the output end 320 and the outside world, thereby ensuring the stability of the connection between the adapter end 210 and the output end 320.

[0060] As shown in the figure, Figures 7-9As shown, in the technical solution of the embodiment, the base 411 comprises a support portion 4111 and a first connecting portion 4112, the first connecting portion 4112 is connected with the frame 120, the support portion 4111 is arranged on the side of the first connecting portion 4112 facing the battery pack 300 along the first direction X, the support portion 4111 is connected with the first connecting portion 4112, the shielding wall 412 surrounds the support portion 4111 to form a protection cavity 418, the output end 320 and the adapter end 210 are both arranged on the support portion 4111 along the second direction Z, and the shielding wall 412 is arranged on the support portion 4111 along the second direction Z.

[0061] By dividing the base 411 into two parts, connecting the first connecting portion 4112 with the frame 120, and supporting the output end 320 and the adapter end 210 by the support portion 4111, the distance between the output end 320 and the adapter end 210 and the frame 120 can be increased, and the probability of contact between the battery pack 300 and the frame 120 can be further reduced while ensuring effective support for the output end 320 and the adapter end 210.

[0062] In addition, the shielding wall 412 does not need to surround the entire base 411, but only needs to surround the support portion 4111, which can reduce the size of the shielding wall 412 and reduce costs.

[0063] Further, the battery pack 1 also has a third direction Y intersecting the first direction X and the second direction Z, and the support seat 400 further comprises at least two reinforcing ribs 414, the reinforcing ribs 414 are arranged on the first connecting portion 4112 along the second direction Z, the at least two reinforcing ribs 414 are arranged at intervals along the third direction Y, the reinforcing ribs 414 are located on the side of the shielding wall 412 away from the battery pack 300 along the first direction X, and the reinforcing ribs 414 are connected with the first connecting portion 4112 and the shielding wall 412.

[0064] In this way, the structural strength of the first connecting portion 4112 can be improved, and the reinforcing ribs 414 connect and fix the first connecting portion 4112 and the shielding wall 412, avoiding damage of the first connecting portion 4112 due to stress concentration, prolonging the service life of the support seat 400, and further improving the support effect of the support seat 400 on the output end 320 and the adapter end 210.

[0065] Further, along the first direction X, the side of the frame 120 facing the battery pack 300 is provided with a limiting groove, the side of the reinforcing rib 414 away from the shielding wall 412 has a guide end 415, the height of the guide end 415 gradually decreases in the direction away from the shielding wall 412 along the first direction X, and the limiting groove and the guide end 415 are inserted.

[0066] In this way, the guide end 415 can play a guiding role in the process of being inserted into the limiting groove, facilitating the insertion of the guide end 415 into the limiting groove to realize the connection between the first connecting part 4112 and the frame 120, and improve the assembly efficiency. Moreover, since the guide end 415 is located in the limiting groove of the frame 120, the contact area between the frame 120 and the support seat 400 can be increased, the relative position between the frame 120 and the support seat 400 is more reliable, and the probability of displacement of the support seat 400 relative to the frame 120 is reduced.

[0067] In addition, the size of the support part 4111 along the third direction Y is greater than the size of the first connecting part 4112 along the third direction Y. In this way, not only is it more convenient for the guide end 415 to be located in the limiting groove of the frame 120 to realize the connection between the support seat 400 and the frame 120, but also the size of the first connecting part 4112 is reduced, which can reduce the cost and weight, and the size of the support part 4111 is larger, which can ensure the contact area between the support seat 400 and the output end 320 and the adapter end 210, and optimize the support effect on the output end 320 and the adapter end 210.

[0068] As shown in Figures 4-6 In the technical scheme of the embodiment, the battery pack 1 further comprises a support 600, the support 600 is arranged in the accommodating cavity 101, the support 600 and the support seat 400 are arranged on the same side, the support 600 comprises a second connecting part 610 and a third connecting part 620 connected with each other, the base 411 is arranged on the second connecting part 610 along the second direction Z, the second connecting part 610 is connected with the base 411, and the third connecting part 620 is connected with the frame 120.

[0069] For example, the third connecting part 620 and the frame 120 can be connected through a first bolt 611, the first bolt 611 can extend along the first direction X, the first bolt 611 passes through the third connecting part 620 first and is then fixed to the frame 120, and the connection between the support 600 and the frame 120 is facilitated. The second connecting part 610 and the first connecting part 4112 can be connected through a second bolt 621, the second bolt extends along the second direction Z, the second bolt 621 passes through the first connecting part 4112 first and is then fixed to the second connecting part 610, and the connection between the support seat 400 and the support 600 is improved.

[0070] Among them, the second connecting part 610 and the third connecting part 620 can form a "L" shape, the support 600 can fix the relative position between the support seat 400 and the frame 120, and the support 600 can support the support seat 400.

[0071] By adopting the support 600 to connect the support seat 400 and the frame 120, the support seat 400 and the frame 120 do not need to be directly connected and fixed, and the support seat 400 and the frame 120 do not need to be formed in one body, which is beneficial to separately process and manufacture the support seat 400 and the frame 120, the shapes of the support seat 400 and the frame 120 can be more various, and in the installation process, the positions between the support 600 and the frame 120 and the positions between the support 600 and the support seat 400 can be finely adjusted, so that the positions of the support seat 400 and the frame 120 can be adjusted, the installation precision of the support seat 400 is improved, and the reliability of the support seat 400 to support the adapter row 200 and the output row 310 is improved.

[0072] Further, the support seat 400 further comprises a boss 416, and the battery pack 1 further comprises a connecting piece 700, the connecting piece 700 is connected to one side of the base 411 close to the bottom plate 110 along the second direction Z, the second connecting part 610 is provided with a through hole 612, and the boss 416 is arranged in the through hole 612. The boss 416 is provided with a groove 417. Along the second direction Z, one end of the connecting piece 700 away from the base 411 is connected to the adapter row 200 and the output row 310, and the other end of the connecting piece 700 close to the base 411 is inserted into the groove 417.

[0073] The connecting piece 700 can be a bolt, the inner wall surface of the groove 417 can be provided with an internal thread, the connecting piece 700 is threadedly connected with the inner wall surface of the groove 417, and the connecting piece 700 is fixed to the boss 416 by penetrating the adapter end 210 and the output end 320, so that the reliability of the first connecting part 4112, the adapter end 210 and the output end 320 is improved. In addition, the boss 416 cooperates with the through hole 612 to realize the prepositioning between the support seat 400 and the support 600, improve the convenience of installation, and the installation precision is high.

[0074] For example, the support 600 and the frame 120 are formed in one body, or the support 600 and the frame 120 are detachably connected.

[0075] In a second aspect, the utility model provides a kind of electric equipment according to the utility model embodiment of the above battery pack 1.Electric equipment can be vehicle or energy storage device etc.

[0076] The utility model discloses an electric equipment, by utilizing the first aspect battery pack 1, the support seat 400 can play the role of supporting adapter row 200 and output row 310, avoid adapter row 200 and output row 310 The connecting place of force is too large, reduce the probability of separation between adapter row 200 and output row 310.

[0077] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the appended claims.

Claims

1. A battery pack having a first direction (X), characterized by, The application relates to a battery pack, comprising: a box body (100) comprising a bottom plate (110) and a frame (120) connected to each other, the frame (120) surrounding the bottom plate (110), and the frame (120) and the bottom plate (110) forming a containing cavity (101); a battery group (300) arranged in the containing cavity (101), the battery group (300) comprising an output row (310); an adapter row (200) arranged in the containing cavity (101) and located on one side of the battery group (300) along a first direction (X), the adapter row (200) and the output row (310) being electrically connected, and the adapter row (200) and the output row (310) having the same polarity; a support seat (400) arranged in the containing cavity (101) and located on one side of the battery group (300) along the first direction (X), the adapter row (200) and the output row (310) being connected to the support seat (400), and one end of the support seat (400) close to the frame (120) being connected to the frame (120) along the first direction (X).

2. The battery pack of claim 1, wherein, The support seat (400) further comprises: a base (411) connected to the frame (120); a shielding wall (412) arranged on the base (411) along a second direction (Z), the shielding wall (412) being connected to the base (411), the shielding wall (412) and the base (411) forming a protection cavity (418), the output row (310) comprising an output end (320), the adapter row (200) comprising an adapter end (210), the output end (320) and the adapter end (210) being electrically connected, at least part of the output end (320) and at least part of the adapter end (210) being located in the protection cavity (418), and the output end (320) and the adapter end (210) being connected to the base (411).

3. The battery pack of claim 2, wherein, The shielding wall (412) is provided with an avoiding gap (413) in communication with the protection cavity (418), and the adapter end (210) is arranged in the avoiding gap (413) and / or the output end (320) is arranged in the avoiding gap (413).

4. The battery pack of claim 2, wherein, The base (411) comprises: a first connecting part (4112) connected to the frame (120); a supporting part (4111) arranged on one side of the first connecting part (4112) towards the battery group (300) along the first direction (X), the supporting part (4111) being connected to the first connecting part (4112), and the shielding wall (412) surrounding the supporting part (4111) to form the protection cavity (418).

5. The battery pack of claim 4, wherein, The support seat (400) further comprises: At least two reinforcing ribs (414) are arranged on the first connecting portion (4112) in the second direction (Z), and the at least two reinforcing ribs (414) are arranged at intervals in the third direction (Y), and the reinforcing ribs (414) are located on the side of the shielding wall (412) away from the battery pack (300) in the first direction (X), and the reinforcing ribs (414) are connected with the first connecting portion (4112) and the shielding wall (412).

6. The battery pack of claim 5, wherein, In the first direction (X), a limiting groove is arranged on the side of the frame (120) facing the battery pack (300), and the reinforcing rib (414) has a guide end (415) on the side away from the shielding wall (412), and the limiting groove and the guide end (415) are inserted.

7. The battery pack of claim 2, wherein, Further comprising: A support (600) is arranged in the containing cavity (101) and arranged on the same side of the support seat (400), and the support (600) comprises a second connecting portion (610) and a third connecting portion (620) connected with each other, and the base (411) is arranged on the second connecting portion (610) in the second direction (Z), and the second connecting portion (610) is connected with the base (411), and the third connecting portion (620) is connected with the frame (120).

8. The battery pack of claim 7, wherein, The support seat (400) further comprises a boss (416) connected to the side of the base (411) close to the bottom plate (110) in the second direction (Z), and the second connecting portion (610) is provided with a through hole (612), and the boss (416) is arranged in the through hole (612); The battery pack (1) further comprises a connecting piece (700), and the boss (416) is provided with a groove (417), and one end of the connecting piece (700) away from the base (411) is connected with the adapter end (210) and the output end (320) in the second direction (Z), and the other end is inserted into the groove (417).

9. The battery pack of claim 2, wherein, Further comprising: A protective cover (500) is arranged on the support seat (400) in the second direction (Z), and is detachably connected with the shielding wall (412), and covers the protective cavity (418).

10. An electric device, characterized by The battery pack (1) according to any one of claims 1-9 is included.

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