Battery pack and electric equipment

Abstract

The utility model discloses a battery pack and electric equipment, and belongs to the technical field of batteries, the battery pack has a first direction, and comprises a plurality of battery subgroups arranged along the first direction, a plurality of first connecting pieces and insulating pieces; in the first direction, the multiple first connecting pieces are connected to one sides of the multiple battery subgroups respectively, the part, away from the battery subgroups, of each first connecting piece is arranged between the adjacent battery subgroups, and the multiple first connecting pieces arranged between every two adjacent battery subgroups are arranged at intervals and form gaps; part of the insulating member is disposed in the gap, and the insulating member is fixed to the at least one battery sub-group. According to the battery pack, the insulating parts are arranged in the gaps formed by the adjacent first connecting parts, so that short circuit caused by contact of the adjacent first connecting parts during shaking is avoided, the reliability of the battery pack can be improved, and meanwhile, short circuit between the adjacent first connecting parts caused by air breakdown when the voltage is too high can also be avoided.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to battery packs and electrical equipment. Background Technology

[0002] To prevent short circuits between conductive components in a battery pack, the conductive components are spaced apart to avoid contact and short circuits between adjacent conductive components.

[0003] However, as the volumetric energy density of battery packs increases, there is still a possibility that the components may come into contact and short-circuit when the battery pack shakes. Utility Model Content

[0004] The purpose of this utility model is to provide a battery pack to solve the technical problem of short circuit in battery packs; another purpose of this application is to provide an electrical device.

[0005] Technical solution: This application provides a battery pack, the battery pack having a first orientation, including:

[0006] Multiple battery sub-groups arranged along the first direction;

[0007] A plurality of first connectors are connected to one side of a plurality of battery sub-groups along the first direction, and the portion of each first connector away from the battery sub-group is disposed between adjacent battery sub-groups. The plurality of first connectors disposed between two adjacent battery sub-groups are spaced apart and form a gap.

[0008] An insulating element, wherein the insulating element is partially disposed in the gap and the insulating element is fixed to at least one of the battery sub-groups.

[0009] In some embodiments, the insulating element includes:

[0010] The main body portion is located in the gap;

[0011] A first connecting part is connected to the main body and to the battery sub-pack.

[0012] In some embodiments, the insulating member includes at least two first connecting portions, which are respectively disposed on both sides of the main body along the first direction to connect two adjacent battery sub-groups along the first direction.

[0013] In some embodiments, the battery pack further includes at least one limiting member connected to the side of the insulating member facing the first connector along the first direction, and the limiting member is connected to the first connector.

[0014] In some embodiments, the battery pack further includes a plurality of limiting members, at least two of the limiting members being connected to both sides of the insulating member along the first direction to respectively connect the first connecting members located on both sides of the insulating member along the first direction.

[0015] In some embodiments, the insulating element has a clearance groove;

[0016] The battery pack includes a second connector, which is spaced apart from the first connector. The second connector is located between adjacent battery sub-groups along the first direction, and the second connector passes through the clearance groove along the first direction to connect to the adjacent battery sub-groups.

[0017] In some embodiments, the battery pack has a second orientation, and the first connecting portion has a connecting hole;

[0018] The battery sub-pack includes:

[0019] A plurality of batteries, each battery including a top cover and a housing, the top cover being connected to the housing along the second direction;

[0020] The partition includes an isolation portion and a second connecting portion. The isolation portion is disposed on the side of the top cover away from the housing. The second connecting portion is connected to the side of the isolation portion away from the battery. The second connecting portion passes through the connecting hole so that the first connecting portion and the second connecting portion are connected. The first direction intersects the second direction.

[0021] In some embodiments, the second connecting portion includes:

[0022] Multiple elastic deformation parts are connected to the isolation part, and the ends of the multiple elastic deformation parts away from the isolation part can move closer to each other and further away from each other, so that the multiple elastic deformation parts are all inserted through the connection hole and abut against the hole wall of the connection hole.

[0023] In some embodiments, the second connecting portion further includes:

[0024] A blocking member is connected to the isolation portion and is disposed between a plurality of elastically deformable portions, wherein the maximum dimension of the blocking member along the second direction is smaller than the maximum dimension of the elastically deformable portion along the second direction.

[0025] In some embodiments, the battery pack has a third direction and includes a plurality of battery subgroups arranged along the third direction, the plurality of battery subgroups being arranged in an array;

[0026] At least one first connector is connected at both ends to two adjacent battery sub-groups along the third direction, the first direction intersecting the third direction.

[0027] Accordingly, this application also provides an electrical device including a battery pack as described in any of the above embodiments.

[0028] Beneficial Effects: Compared with the prior art, the battery pack provided in this application embodiment has a first direction and includes multiple battery sub-groups arranged along the first direction, multiple first connectors, and an insulating member. The battery pack includes multiple battery sub-groups arranged along the first direction. Along the first direction, multiple first connectors are respectively connected to one side of multiple battery sub-groups, and the portion of each first connector away from the battery sub-group is disposed between adjacent battery sub-groups. The multiple first connectors disposed between two adjacent battery sub-groups are spaced apart to form gaps. The insulating member is partially disposed in the gaps and is fixed to at least one battery sub-group. This application improves the reliability of the battery pack by providing an insulating member in the gaps formed by adjacent first connectors to prevent short circuits caused by contact between adjacent first connectors when shaking. At the same time, this application can also prevent short circuits between adjacent first connectors caused by air breakdown when the voltage is too high. Attached Figure Description

[0029] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0030] Figure 1 An isometric view of the battery pack at one angle provided in an embodiment of this application;

[0031] Figure 2 An isometric view of the battery pack provided in an embodiment of this application from another angle;

[0032] Figure 3 This is a front view of the battery pack provided in an embodiment of this application;

[0033] Figure 4 A side view of the battery pack provided in an embodiment of this application;

[0034] Figure 5 for Figure 3 Sectional view at point BB;

[0035] Figure 6 for Figure 5 Detailed view of point E in the center circle;

[0036] Figure 7 for Figure 3 Sectional view at CC;

[0037] Figure 8 for Figure 7Detailed view of point F in the middle circle;

[0038] Figure 9 An exploded view of the battery pack provided in an embodiment of this application;

[0039] Figure 10 This is a schematic diagram of the structure of the insulating sheet in a battery pack according to one embodiment of this application;

[0040] Figure 11 This is a schematic diagram of the structure of the insulating sheet in a battery pack according to another embodiment of this application;

[0041] Figure 12 for Figure 1 Detailed view of point A in the middle circle;

[0042] Figure 13 for Figure 4 Detailed view of point D in the middle circle.

[0043] Reference numerals in the attached drawings: 11-battery sub-pack, 111-battery, 112-top cover, 113-separator, 114-isolation part, 115-second connecting part, 116-elastic deformation part, 1161-root part, 1162-protrusion part, 1163-guide surface, 117-blocking member, 2-first connecting member, 3-gap, 4-insulating member, 41-main body part, 42-first connecting part, 421-connecting hole, 43-avoiding groove, 5-limiting member, 6-second connecting member. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0046] It should also be noted that in the accompanying drawings of the embodiments of this application, the arrows labeled X, Y, and Z respectively represent the first direction X, the second direction Y, and the third direction Z. The description of this application introduces the first direction X, the second direction Y, and the third direction Z to more clearly illustrate the relative positional relationships involved in the battery pack and electrical equipment. The first direction X, the second direction Y, and the third direction Z are three intersecting relative directions, not absolute directions. In practical applications, the first direction X, the second direction Y, and the third direction Z can point to any direction in space, as long as the intersection relationship between them is maintained.

[0047] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure of this application, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit this application.

[0048] To prevent short circuits between conductive components in a battery pack, gaps are placed between them to avoid contact and short circuits between adjacent conductive components.

[0049] However, as the volumetric energy density of battery packs increases, the internal components of the battery pack may also vibrate when the battery pack shakes, potentially causing them to come into contact and short-circuit. Or, due to the small spacing, even without shaking, the high voltage may still break down the air, causing short circuits between adjacent components.

[0050] To address the aforementioned technical problem of short circuits in battery packs, the first embodiment of this application provides a battery pack. Please refer to... Figure 1 and Figure 2The battery pack includes multiple battery sub-groups 11 arranged along a first direction X, multiple first connectors 2, and an insulating member 4. Along the first direction X, the multiple first connectors 2 are connected to one side of the multiple battery sub-groups 11, and the portion of each first connector 2 away from the battery sub-group 11 is disposed between adjacent battery sub-groups 11. The multiple first connectors 2 disposed between two adjacent battery sub-groups 11 are spaced apart to form a gap 3. A portion of the insulating member 4 is disposed in the gap 3, and the insulating member 4 is fixed to at least one battery sub-group 11.

[0051] Specifically, the first connector 2 is used to electrically connect the battery sub-pack 11 and the high-voltage distribution box to collect the current of the battery sub-pack 11 and output or input it to the high-voltage distribution box.

[0052] In some embodiments, the number of first connectors 2 located between two adjacent battery sub-groups 11 along the first direction X, away from the connected battery sub-group 11, is multiple; in some embodiments, the number of first connectors 2 located between two adjacent battery sub-groups 11 along the first direction X, away from the connected battery sub-group 11, is two, one first connector 2 is used to electrically connect the positive terminal of the battery sub-group 11 to the high-voltage distribution box, and the other first connector 2 is used to electrically connect the negative terminal of some battery sub-groups 11 to the high-voltage distribution box.

[0053] It is understood that the insulating member 4 disposed in the gap 3 is used to prevent short circuits between adjacent first connecting members 2 along the first direction X. Therefore, in some embodiments, the insulating member 4 needs to be partially disposed in the gap 3 to serve as insulation. Specifically, part of the insulating member 4 is disposed inside the gap 3, and part of the insulating member 4 is disposed outside the gap 3. The part disposed outside the gap 3 serves to fix the insulating member 4, or the insulating member 4 is entirely located inside the gap 3.

[0054] It is understood that, since the insulating element 4 is required to perform an insulating function, the insulating element 4 needs to be made of insulating material, or at least the portion of the insulating element 4 located within the gap 3 needs to be made of insulating material. Specifically, in some embodiments, the insulating element 4 is entirely made of insulating material; in other embodiments, the portion of the insulating element 4 located within the gap 3 is made of insulating material, while the portion of the insulating element 4 located outside the gap 3 may be made of one or more of insulating and non-insulating materials.

[0055] In the above embodiment, the insulating element 4 provided in the gap 3 can prevent short circuits between adjacent first connectors 2 along the first direction X. Specifically, it can prevent the spacing between adjacent first connectors 2 along the first direction X from decreasing due to shaking, thereby preventing contact short circuits or high-voltage breakdown air short circuits, and thus improving the reliability of the battery pack.

[0056] In some embodiments, please refer to Figure 10 and Figure 11 The insulating component 4 includes a main body 41 and a first connecting part 42. The main body 41 is located in the gap 3. The first connecting part 42 is connected to the main body 41 and is connected to the battery sub-pack 11.

[0057] Specifically, the main body portion 41 disposed in the gap 3 can prevent short circuits between the first connecting members 2 located on both sides of the main body portion 41 along the first direction X. It can be understood that, due to the presence of the main body portion 41, the first connecting members 2 located on both sides of the main body portion 41 along the first direction X cannot come into contact with each other to cause a short circuit, and high voltage is also unlikely to break down the main body portion 41 to cause a short circuit.

[0058] In some embodiments, the main body 41 is made of an insulating material.

[0059] In some embodiments, the first connecting portion 42 is located outside the gap 3 to fix the main body portion 41 located inside the gap 3; in other embodiments, a portion of the first connecting portion 42 is located inside the gap 3 and a portion of the first connecting portion 42 is located outside the gap 3 to fix the main body portion 41 located inside the gap 3; in still other embodiments, the entire first connecting portion 42 is located inside the gap 3, and the first connecting portion 42 is connected to the first connector 2 to fix the main body portion 41 located inside the gap 3.

[0060] In the above embodiment, by providing the main body 41 in the gap 3 to provide insulation between adjacent first connectors 2 along the first direction X, the first connector 42 connected to the main body 41 can better fix the main body 41 in the battery pack, thereby improving the reliability of the insulating member 4 and preventing the insulating member 4 from failing due to displacement.

[0061] In some embodiments, please refer to Figure 10 and Figure 11 The insulating member 4 includes at least two first connecting portions 42, which are respectively disposed on both sides of the main body 41 along the first direction X, so as to connect two adjacent battery sub-groups 11 along the first direction X respectively.

[0062] In some embodiments, the insulating member 4 includes two first connecting portions 42; in other embodiments, the insulating member 4 includes only one first connecting portion 42, which is used to connect either of two adjacent battery sub-groups 11 along the first direction X, or to connect with other components in the battery pack; in still other embodiments, the insulating member 4 includes at least three first connecting portions 42, wherein a portion of the first connecting portion 42 is used to connect one of two adjacent battery sub-groups 11 along the first direction X, and a portion of the first connecting portion 42 is used to connect the other of the two adjacent battery sub-groups 11 along the first direction X.

[0063] In embodiments where the insulating member 4 includes two first connecting portions 42, the two first connecting portions 42 are respectively located on both sides of the main body portion 41 along the first direction X. In some embodiments, the two first connecting portions 42 are respectively located at both ends of the main body portion 41 along the third direction Z; in other embodiments, the two first connecting portions 42 are located on both sides of the main body portion 41 along the first direction X and at both ends of the main body portion 41 along the third direction Z, thereby improving connection stability. In the above embodiments, by providing at least two first connecting portions 42, the fixing effect of the first connecting portions 42 on the main body portion 41 is improved, so as to better fix the main body portion 41 in the battery pack, avoid the insulating member 4 from shaking or falling off, improve the reliability of the insulating member 4, and prevent the insulating member 4 from failing due to displacement.

[0064] In some embodiments, the battery pack further includes at least one limiting member 5, which is connected to the side of the insulating member 4 facing the first connector 2 along the first direction X, and the limiting member 5 is connected to the first connector 2.

[0065] It is understandable that due to errors in the installation process, there are also tolerances in the components inside the battery pack. The distance between the insulating part 4 and the first connecting part 2 is not a fixed value. In some embodiments, the limiting part 5 is a flexible part, such as foam, which can connect the first connecting part 2 and the insulating part 4 with different distances.

[0066] In the above embodiment, by providing a limiting member 5 between the insulating member 4 and the first connecting member 2, the limiting member 5 can fix the first connecting member 2, thereby preventing the first connecting member 2 from shaking along the first direction X, and further preventing short circuits between the first connecting member 2 and other devices, thus making the battery pack more reliable.

[0067] In some embodiments, please refer to Figure 7 , Figure 8 , Figure 10 and Figure 11 The battery pack also includes multiple limiting members 5, with at least two limiting members 5 connected to both sides of the insulating member 4 along the first direction X, so as to respectively connect to the first connecting members 2 located on both sides of the insulating member 4 along the first direction X.

[0068] It is understandable that the two limiting members 5 are simultaneously connected to both sides of the insulating member 4 along the first direction X, and the two limiting members 5 are respectively connected to the first connecting members 2 located on both sides of the insulating member 4 along the first direction X. This allows the limiting members 5 to not only enable the insulating member 4 to provide support force to the first connecting member 2 to limit the first connecting member 2 when it shakes, but also to enable the first connecting members 2 on both sides of the insulating member 4 along the first direction X to provide support force to each other to limit each other when they shake.

[0069] In the above embodiment, by providing two limiting members 5 on both sides of the insulating member 4 to connect the first connecting members 2 on both sides of the insulating member 4 along the first direction X, and limiting the first connecting members 2, a better limiting effect can be obtained, thereby further avoiding short circuits between the first connecting members 2 and other devices, making the battery pack more reliable.

[0070] In some embodiments, please refer to Figure 5 , Figure 6 , Figure 9 , Figure 11 The insulating component 4 has a clearance groove 43;

[0071] The battery pack includes a second connector 6, which is spaced apart from the first connector 2. The second connector 6 is located between adjacent battery sub-groups 11 along the first direction X, and the second connector 6 passes through the clearance groove 43 along the first direction X to connect the adjacent battery sub-groups 11.

[0072] Specifically, the second connector 6 and the first connector 2 are spaced apart along the third direction Z.

[0073] It is understood that in some embodiments, the second connector 6 is used to electrically connect the positive and negative terminals of two adjacent battery subgroups 11 along the first direction X.

[0074] In the above embodiment, by opening a clearance groove 43 on the main body 41 of at least one insulating member 4 and placing the insulating member 4 between battery sub-groups 11 that need to be electrically connected along the first direction X, the second connector 6 can pass through the clearance groove 43 to connect two adjacent battery sub-groups 11 along the first direction X. This allows the insulating member 4 to play an insulating role between the first connectors 2 adjacent along the first direction X, and at the same time, it also allows the second connector 6 to be electrically connected to the battery sub-groups 11 adjacent along the first direction X.

[0075] In some embodiments, please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 12 and Figure 13The battery pack has a second direction Y, and the first connecting part 42 has a connecting hole 421; the battery sub-group 11 includes a plurality of batteries 111 and a separator 113. The battery includes a top cover 112 and a housing 118. The top cover 112 is connected to the housing 118 along the second direction Y; the separator 113 includes an isolation part 114 and a second connecting part 115. The isolation part 114 is disposed along the second direction Y on the side of the top cover 112 away from the housing 118. The second connecting part 115 is connected to the side of the isolation part 114 away from the battery 111. The second connecting part 115 passes through the connecting hole 421 so that the first connecting part 42 and the second connecting part 115 are connected. The first direction X intersects the second direction Y.

[0076] Specifically, the connecting hole 421 is set along the second direction Y.

[0077] In some embodiments, the isolation portion 114 is connected to the side of the top cover 112 away from the housing 118.

[0078] It is understandable that by providing a second connecting portion 115 on the partition 113 that faces away from the isolation portion 114, the mounting direction of the insulating member 4 is also the second direction Y. During installation, the insulating member 4 can be installed simply by inserting the main body 41 into the gap 3 along the second direction Y and allowing the second connecting portion 115 to pass through the connecting hole 421.

[0079] In the above embodiments, by providing the second connecting part 115 and the connecting hole 421, and by setting the direction of the connecting hole 421, the installation difficulty of the insulating part 4 is reduced.

[0080] In some embodiments, please refer to Figure 13 The second connecting part 115 includes a plurality of elastic deformation parts 116. The ends of the plurality of elastic deformation parts 116 away from the isolation part 114 can move closer to each other and further away from each other, so that the plurality of elastic deformation parts 116 are all inserted through the connecting hole 421 and abut against the hole wall of the connecting hole 421.

[0081] Specifically, in some embodiments, the second connecting portion 115 includes two elastically deformable portions 116; in other embodiments, the number of elastically deformable portions 116 is three, four, five, etc.

[0082] Understandably, when the multiple elastic deformation portions 116 approach each other, the outer diameter of the second connecting portion 115 is smaller than the diameter of the connecting hole 421, so that the multiple second connecting portions 115 can pass through the connecting hole 421. After the second connecting portion 115 enters the connecting hole 421, the multiple elastic deformation portions 116 move away from each other under the action of elastic potential energy until at least two elastic deformation portions 116 contact the hole wall of the connecting hole 421 and apply force to the hole wall of the connecting hole 421 to generate friction, thereby limiting the displacement of the insulating member 4 along the second direction Y.

[0083] In some embodiments, the elastic deformation portion 116 includes a root portion 1161 and a protrusion 1162 disposed along the second direction Y. The protrusion 1162 is connected to the side of the root portion 1161 away from the battery 111. After the elastic deformation portion 116 releases its elastic potential energy, the outer diameter of the protrusion 1162 of at least two elastic deformation portions 116 can be larger than the diameter of the connecting hole 421, so that after the root portion 1161 of at least two elastic deformation portions 116 passes through the connecting hole 421, the surface of the protrusion 1162 facing the isolation portion 114 can contact the first connecting portion 42 and restrict the first connecting portion 42 from moving along the second direction Y in a direction away from the battery 111.

[0084] In some embodiments, the protrusion 1162 has a guide surface 1163, such that after the protrusion 1162 contacts the wall of the connecting hole 421, the guide surface 1163 can guide the two elastically deformable portions 116 to approach each other, so that the protrusion 1162 and the root portion 1161 are sequentially inserted into the connecting hole 421.

[0085] In the above embodiment, the insulating member 4 is locked and limited by the elastic deformation part 116 that can generate elastic deformation. That is, after the insulating member 4 is installed, the second connecting part 115 automatically realizes the limitation of the insulating member 4, eliminating the fixing step of the insulating member 4 and further reducing the installation difficulty of the insulating member 4.

[0086] In some embodiments, the second connecting portion 115 further includes a blocking member 117, which is connected to the isolation portion 114. The blocking member 117 is disposed between a plurality of elastically deformable portions 116, and the maximum dimension of the blocking member 117 along the second direction Y is smaller than the maximum dimension of the elastically deformable portion 116 along the second direction Y.

[0087] It is understandable that the larger the size of the elastic deformation portion 116 along the second direction Y, the weaker the stiffness of the elastic deformation portion 116, and the easier it is to generate elastic deformation. In order to improve the stiffness of the elastic deformation portion 116, a blocking member 117 is provided to reduce the size of the portion of the elastic deformation portion 116 that will actually generate elastic deformation in the second direction Y, thereby improving the stiffness of the elastic deformation portion 116 and increasing the difficulty for the elastic deformation portion 116 to generate elastic deformation.

[0088] In the above embodiment, by providing the blocking member 117, the difficulty of the elastic deformation part 116 generating elastic deformation is increased, thereby reducing the probability of the insulating member 4 falling off the second connecting part 115, and thus improving the connection reliability between the second connecting part 115 and the insulating member 4.

[0089] In some embodiments, please refer again Figure 1 , Figure 2 , Figure 3 and Figure 9 The battery pack has a third direction Z, and multiple battery subgroups 11 arranged along the third direction Z are arranged in an array; at least one first connector 2 connects two adjacent battery subgroups 11 along the third direction Z at both ends, and the first direction X intersects the third direction Z.

[0090] Specifically, part of the first connector 2 is used to electrically connect the positive and negative terminals of two adjacent battery subgroups 11 along the third direction Z.

[0091] It is understood that in some embodiments, multiple battery sub-groups 11 are arranged not only along one direction but also along other directions to form an array. Specifically, at least two battery sub-groups 11 are arranged along a third direction Z, and adjacent battery sub-groups 11 along the third direction Z are electrically connected by a portion of a plurality of first connectors 2, the portion of the first connectors 2 being used to electrically connect the battery sub-groups 11 and the high-voltage distribution box; at least two battery sub-groups 11 are arranged along a first direction X, and adjacent battery sub-groups 11 along the first direction X are electrically connected by second connectors 6.

[0092] Specifically, please refer to Figure 2 In some embodiments, multiple battery sub-groups 11 are connected in series by multiple first connectors 2, and the first battery sub-group 11 and the last battery sub-group 11 in the series can be electrically connected to a high-voltage distribution box by a first connector 2.

[0093] In the above embodiment, by setting battery subgroups 11 along the first direction X and the third direction Z to form an array battery pack, and by setting the first connector 2 and the second connector 6 to connect multiple battery subgroups 11 in series and connect them to the high-voltage distribution box, the layout of battery subgroups 11 in the battery pack can be facilitated.

[0094] In some embodiments, the battery pack includes a housing having a receiving cavity in which a plurality of battery subgroups 11 arranged in an array are disposed.

[0095] Accordingly, this application also provides an electrical device including a battery pack as described in any of the above embodiments.

[0096] The electrical equipment can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools. Vehicles can be new energy vehicles, including pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles; spacecraft include airplanes, rockets, space shuttles, and spacecraft; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. This application does not impose any special limitations on the aforementioned electrical equipment.

[0097] The battery pack and electrical device provided in the embodiments of this application have been described in detail above. Specific examples have been used in this application to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery pack, characterized in that, The battery pack has a first orientation, including: Multiple battery sub-groups arranged along the first direction; A plurality of first connectors are respectively connected to one side of a plurality of battery sub-groups along the first direction, and the portion of each first connector away from the battery sub-group is disposed between adjacent battery sub-groups. The plurality of first connectors disposed between two adjacent battery sub-groups are spaced apart and form a gap. An insulating element, wherein the insulating element is partially disposed in the gap and the insulating element is fixed to at least one of the battery sub-groups.

2. The battery pack according to claim 1, characterized in that, The insulating component includes: The main body portion is located in the gap; A first connecting part is connected to the main body and to the battery sub-pack.

3. The battery pack according to claim 2, characterized in that, The insulating component includes at least two first connecting portions, which are respectively disposed on both sides of the main body along the first direction to connect two adjacent battery sub-groups along the first direction.

4. The battery pack according to claim 1, characterized in that, The battery pack further includes at least one limiting member connected to the side of the insulating member facing the first connector along the first direction, and the limiting member is connected to the first connector.

5. The battery pack according to claim 1, characterized in that, The battery pack also includes a plurality of limiting members, at least two of which are connected to both sides of the insulating member along the first direction to respectively connect to the first connecting members located on both sides of the insulating member along the first direction.

6. The battery pack according to claim 1, characterized in that, The insulating component has a clearance groove; The battery pack includes a second connector, which is spaced apart from the first connector. The second connector is located between adjacent battery sub-groups along the first direction, and the second connector passes through the clearance groove along the first direction to connect to the adjacent battery sub-groups.

7. The battery pack according to claim 2, characterized in that, The battery pack has a second orientation, and the first connecting portion has a connecting hole; The battery sub-pack includes: A plurality of batteries, each battery including a top cover and a housing, the top cover being connected to the housing along the second direction; The partition includes an isolation portion and a second connecting portion. The isolation portion is disposed on the side of the top cover away from the housing. The second connecting portion is connected to the side of the isolation portion away from the battery. The second connecting portion passes through the connecting hole so that the first connecting portion and the second connecting portion are connected. The first direction intersects the second direction.

8. The battery pack according to claim 7, characterized in that, The second connecting part includes: Multiple elastic deformation parts are connected to the isolation part, and the ends of the multiple elastic deformation parts away from the isolation part can move closer to each other and further away from each other, so that the multiple elastic deformation parts are all inserted through the connection hole and abut against the hole wall of the connection hole.

9. The battery pack according to claim 8, characterized in that, The second connecting part further includes: A blocking member is connected to the isolation portion and is disposed between a plurality of elastically deformable portions, wherein the maximum dimension of the blocking member along the second direction is smaller than the maximum dimension of the elastically deformable portion along the second direction.

10. The battery pack according to claim 1, characterized in that, The battery pack has a third direction and includes multiple battery subgroups arranged along the third direction, and the multiple battery subgroups are arranged in an array. At least one first connector is connected at both ends to two adjacent battery sub-groups along the third direction, the first direction intersecting the third direction.

11. An electrical appliance, characterized in that, The battery pack includes any one of claims 1-10.

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