Battery pack and electric device

Abstract

A battery pack (10) and an electric device (60). The battery pack (10) comprises a tray (1), first electrical components, and second electrical components, and first isolation assemblies (4). The tray (1) is provided with at least two adjacent chambers (11), and a notch (12, 13) is formed between the two adjacent chambers (11). A first connecting piece (2) comprised in each first electrical component and a second connecting piece (3) comprised in each second electrical component are electrically connected at the corresponding notch. Each first isolation assembly (4) comprises an isolation frame (41), first sealing bodies (42), and a first conductive member (43), wherein the isolation frame (41) is connected at the notch, the isolation frame (41) comprises isolation inner cavities (413), the first sealing bodies (42) are filled in the isolation inner cavities (413), the first connecting piece (2) and the second connecting piece (3) are connected to the first conductive member (43), and at least part of the first conductive member (43) is sealedly connected within the isolation inner cavities (413).

Description

Battery pack and electric device

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202422399489.6, filed on September 29, 2024, and entitled "Battery pack and electric device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of batteries, and in particular relates to a battery pack and an electric device. BACKGROUND

[0004] At present, a battery pack usually has a tray, a battery cell group and a power distribution assembly. The tray has a plurality of cavities, one or two of which accommodate the power distribution assembly, and the remaining cavities accommodate the battery cell group. The electrical connection positions between adjacent battery cell groups and between the power distribution assembly and adjacent battery cell groups are usually arranged at notches on the tray.

[0005] However, when the battery cell group loses control, a large amount of heat and gas is easily generated. The gas can flow between adjacent cavities through the gaps of the notches, causing other modules to lose control, and thus easily causing a safety accident of the battery pack to occur, reducing the safety performance of the battery pack. SUMMARY

[0006] The purpose of the embodiments of the present application is to provide a battery pack and an electric device, which can solve the problem that the gas generated when the battery cell group loses control causes cross talk, leading to thermal runaway of the battery pack.

[0007] In order to solve the above technical problems, the present application is implemented as follows:

[0008] In a first aspect, the embodiments of the present application provide a battery pack, which comprises:

[0009] a tray, which is provided with at least two adjacent cavities, and a notch is arranged between the two adjacent cavities;

[0010] a first electrical component and a second electrical component, which are respectively installed in the two adjacent cavities, and a first connecting piece included in the first electrical component and a second connecting piece included in the second electrical component are electrically connected at the notch;

[0011] a first isolation assembly, which comprises an isolation frame, a first sealing body and a first conductive component, the isolation frame is connected at the notch, the isolation frame comprises an isolation inner cavity, the first sealing body is filled in the isolation inner cavity, the first connecting piece and the second connecting piece are connected on the first conductive component, and at least part of the first conductive component is sealingly connected in the isolation inner cavity.

[0012] In the embodiment of the present application, since the first electrical component and the second electrical component are respectively installed in two adjacent cavities, and the first connecting piece included in the first electrical component and the second connecting piece included in the second electrical component are electrically connected at the gap, the electrical connection between the first electrical component and the second electrical component in the two adjacent cavities can be realized through the first connecting piece and the second connecting piece. Since the first isolation assembly includes the isolation frame, the first sealing body and the first conductive piece, the isolation frame is connected at the gap, and the isolation frame includes the isolation inner cavity, the first sealing body is filled in the isolation inner cavity, the cavities are independent of each other, and the partition control can be realized when thermal runaway occurs. The gas can be isolated in the cavity where the gas diffusion occurs through the first isolation assembly, the circulation of the gas between the adjacent cavities through the first gap is avoided, and the thermal diffusion of the battery pack is further delayed or even prevented. In addition, the first connecting piece and the second connecting piece are connected to the first conductive piece, and at least part of the first conductive piece is sealingly connected in the isolation inner cavity, so that the stability of the electrical connection between the first electrical component and the second electrical component can be ensured through the first conductive piece, and the first conductive piece and the tray can be avoided from being short-circuited through the setting of the first sealing body in the isolation frame.

[0013] Optionally, the tray includes a bottom plate, a frame and a cross beam;

[0014] The frame is arranged at the four peripheral edges of the bottom plate, and the cross beam is arranged in the inner cavity surrounded by the frame to form a plurality of cavities in the tray.

[0015] In the first direction, a first gap is arranged between two adjacent cavities, the first isolation assembly is arranged at the first gap, and the cross beam extends in a second direction, the first direction and the second direction being two intersecting directions.

[0016] Optionally, the isolation frame includes a first insulating piece and a second insulating piece.

[0017] The first insulating piece is connected at the first gap, and the first insulating piece and the second insulating piece are connected to form the isolation inner cavity, and the first conductive piece is installed in the isolation inner cavity.

[0018] Optionally, the first insulating piece includes a clamping structure.

[0019] The clamping structure forms a clamping groove, and the cross beam at the first gap is at least partially clamped in the clamping groove.

[0020] Optionally, the first insulating piece further includes a connecting structure.

[0021] The connecting structure is arranged on the end face of the clamping structure away from the first gap, and the connecting structure and the first conductive piece are detachably connected.

[0022] Optionally, the connecting structure comprises at least one first buckle, and the first conductive member comprises at least one first clamping groove, the first buckle being clamped in the first clamping groove.

[0023] Optionally, the connecting structure comprises a positioning member, and the first conductive member comprises a positioning hole, the positioning member being inserted into the positioning hole.

[0024] Optionally, the connecting structure comprises a first isolation sheet and a second isolation sheet arranged oppositely.

[0025] The first isolation sheet and the second isolation sheet both extend away from the clamping structure, the first conductive member being detachably connected between the first isolation sheet and the second isolation sheet, the first isolation sheet being located between the cross beam and the first conductive member, the second isolation sheet being located between the longitudinal beam and the first conductive member, or the second isolation sheet being located between the frame and the first conductive member.

[0026] Optionally, the first isolation sheet and the second isolation sheet are both provided with a second clamping groove.

[0027] The second insulating member is provided with a second buckle on both ends thereof in the first direction, the second buckle being clamped with the second clamping groove.

[0028] Optionally, the clamping structure is further provided with at least one connecting plate at an end thereof in the second direction.

[0029] The connecting plate extends along the first direction and is attached to a side surface of the longitudinal beam or the frame.

[0030] Optionally, the tray further comprises a longitudinal beam, the longitudinal beam being arranged in the inner cavity of the frame and being staggered with the cross beam along the first direction to form a plurality of chambers in the tray, a second gap being arranged between two adjacent chambers in the second direction close to the frame, and a second isolation assembly being arranged at the second gap, the second isolation assembly comprising a third insulating member, an insulating support, a second conductive member and a second sealing body.

[0031] The third insulating member is attached to the frame, the insulating support being connected at the second gap, one end of the insulating support in the first direction being connected with the third insulating member, and the other end of the insulating support in the first direction being connected with the longitudinal beam, the insulating support forming an insulating inner cavity, and the second sealing body being filled in the insulating inner cavity.

[0032] The second conductive member is arranged between the third insulating member and the insulating support.

[0033] Optionally, the insulating support comprises a fourth insulating piece and a fifth insulating piece.

[0034] The fourth insulating piece and the fifth insulating piece are detachably connected to form the insulating inner cavity, the fourth insulating piece is connected to the third insulating piece, and the fifth insulating piece is connected to the longitudinal beam.

[0035] Optionally, the fourth insulating piece is in a box body structure, and the fifth insulating piece comprises a connecting part and a plug-in part.

[0036] The connecting part is in a buckle structure, the buckle structure is buckled to a side of the fourth insulating piece away from the third insulating piece, and the plug-in part is plugged into the interior of the longitudinal beam.

[0037] Optionally, the third insulating piece is provided with a buckling table at a position close to the second gap, and the third insulating piece is further provided with a buckling through slot, the buckling through slot being located at a side of the buckling table away from the second gap.

[0038] The fourth insulating piece is plugged into the buckling through slot, and an end of the fourth insulating piece towards the second gap is plugged onto the buckling table.

[0039] Optionally, the second conductive piece comprises a first conductive row, a second conductive row, a first conductive sheet and a second conductive sheet, the first conductive sheet is connected to a first side surface of the fourth insulating piece, and the second conductive sheet is connected to a second side surface of the fourth insulating piece.

[0040] The first conductive row and the second conductive row are arranged close to the frame, one end of the first conductive row is connected to the first conductive sheet through a gap between the fourth insulating piece and the third insulating piece, and one end of the second conductive row is connected to the second conductive sheet, wherein the first side surface and the second side surface are two surfaces of the fourth insulating piece opposite to each other in the second direction.

[0041] In a second aspect, the embodiments of the present application further provide a power utilization device, which comprises the battery pack of any one of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0043] FIG. 1 is a structural schematic diagram of a battery pack in the embodiments of the present application.

[0044] Fig. 2 is a partial enlarged view of the battery in the embodiment of the present application at A in Fig. 1;

[0045] Fig. 3 is an assembly view of the first isolation assembly and the tray included in the battery in the embodiment of the present application;

[0046] Fig. 4 is a structural view of the conductive member included in the first isolation assembly included in the battery in the embodiment of the present application;

[0047] Fig. 5 is a structural view of the first insulating member included in the first isolation assembly included in the battery in the embodiment of the present application;

[0048] Fig. 6 is an assembly view of the first insulating member and the conductive member included in the first isolation assembly included in the battery in the embodiment of the present application;

[0049] Fig. 7 is a structural view of the second insulating member included in the first isolation assembly included in the battery in the embodiment of the present application;

[0050] Fig. 8 is a partial enlarged view of the battery in the embodiment of the present application at B in Fig. 1;

[0051] Fig. 9 is a structural view of the second isolation assembly included in the battery in the embodiment of the present application;

[0052] Fig. 10 is a structural view of the third insulating member included in the second isolation assembly included in the battery in the embodiment of the present application;

[0053] Fig. 11 is a structural view of the insulating support included in the second isolation assembly included in the battery in the embodiment of the present application.

[0054] Fig. 12 is a structural view of the electric device in the embodiment of the present application.

[0055] Explanation of reference signs: 10-battery pack; 1-tray; 11-chamber; 12-first notch; 13-second notch; 14-bottom plate; 15-frame; 16-cross beam; 17-longitudinal beam; 2-first connecting sheet; 3-second connecting sheet; 4-first isolation assembly; 41-isolation frame; 411-first insulating piece; 4111-clamping structure; 41111-connection plate; 4112-connection structure; 41121-first clasp; 41122-positioning piece; 41123-first isolation sheet; 411231-second clamping groove; 41124-second isolation sheet; 412-second insulating piece; 4121-second clasp; 413-isolation inner cavity; 42-first sealing body; 43-first conductive piece; 431-first clamping groove; 432-positioning hole; 5-second isolation assembly; 51-third insulating piece; 511-clamping table; 512-clamping through groove; 52-insulating support; 521-fourth insulating piece; 522-fifth insulating piece; 5221-connection part; 5222-plug-in part; 523-insulating inner cavity; 53-second conductive piece; 531-first conductive row; 532-second conductive row; 533-first conductive sheet; 534-second conductive sheet; 54-second sealing body; 60-electric device. Specific embodiments

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0057] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0058] The battery pack 10 and the electric device provided by the embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and their application scenarios.

[0059] Referring to FIGS. 1-11, the embodiments of the present application provide a battery pack 10, which comprises:

[0060] The tray 1 is provided with at least two adjacent chambers 11, and a gap is formed between the two adjacent chambers 11.

[0061] The first electrical component and the second electrical component are respectively installed in the two adjacent chambers 11, and the first connecting piece 2 included in the first electrical component and the second connecting piece 3 included in the second electrical component are electrically connected at the gap.

[0062] The first isolation assembly 4 includes an isolation frame 41, a first sealing body 42 and a first conductive piece 43, the isolation frame 41 is connected at the gap, the isolation frame 41 includes an isolation inner cavity 413, the first sealing body 42 is filled in the isolation inner cavity 413, the first connecting piece 2 and the second connecting piece 3 are connected to the first conductive piece 43, and at least part of the first conductive piece 43 is sealingly connected in the isolation inner cavity 413.

[0063] As can be seen from the above embodiment, in the embodiment of the present application, since the first electrical component and the second electrical component are respectively installed in the two adjacent chambers 11, and the first connecting piece 2 included in the first electrical component and the second connecting piece 3 included in the second electrical component are electrically connected at the gap, the electrical connection between the first electrical component and the second electrical component in the two adjacent chambers can be realized through the first connecting piece 2 and the second connecting piece 3. In addition, since the first isolation assembly 4 includes the isolation frame 41, the first sealing body 42 and the first conductive piece 43, the isolation frame 41 is connected at the gap, the isolation frame 41 includes the isolation inner cavity 413, and the first sealing body 42 is filled in the isolation inner cavity 413, the chambers are independent of each other, and when thermal runaway occurs, partition control can be realized, the gas can be isolated in the chamber 11 where gas diffusion occurs through the first isolation assembly 4, and the gas can be prevented from flowing through the first gap 12 between the adjacent chambers 11, thereby further delaying or even preventing thermal diffusion of the battery pack 10. In addition, the first connecting piece 2 and the second connecting piece 3 are connected to the first conductive piece 43, and at least part of the first conductive piece 43 is sealingly connected in the isolation inner cavity 413, so that the stability of the electrical connection between the first electrical component and the second electrical component can be ensured through the first conductive piece 43, and the first conductive piece 43 and the tray 1 can be prevented from being short-circuited through the first sealing body 42 in the isolation frame 41.

[0064] In the above embodiments, the chambers 11 included in the tray 1 can be linearly arranged, or arranged in a matrix, or other arrangement, and the specific number of chambers 11 included in the tray 1 is determined according to the number of first electrical components and second electrical components included in the battery pack 10, which is not limited in the embodiments of the present application. For example, the chambers 11 included in the tray 1 can be arranged in a matrix of three rows and two columns, or a matrix of three rows and three columns. The chambers 11 can include chambers 11 for accommodating first electrical components and chambers 11 for accommodating second electrical components. In an exemplary embodiment, the first electrical components can be power distribution assemblies, and the second electrical components can be cell groups. The chambers 11 can include power distribution chambers and cell chambers, wherein the number of power distribution chambers can be one or more, and the number of cell chambers is greater than the number of power distribution chambers. In the case where the number of power distribution chambers is greater than or equal to two, at least one cell chamber is provided between two adjacent power distribution chambers. Two adjacent chambers 11 can be a cell chamber and a power distribution chamber, i.e., the first electrical components are power distribution assemblies, and the second electrical components are cell groups. Two adjacent chambers 11 can also be two cell chambers, i.e., the first electrical components and the second electrical components are both cell groups. The cell groups are used for charging and discharging to achieve energy storage and release, and the power distribution assemblies are used for managing the charging and discharging of the cell groups.

[0065] Since the cell groups may generate thermal runaway when working, resulting in hot smoke, based on this, in order to protect the battery pack 10, a first isolation assembly 4 is provided in the embodiments of the present application. The isolation frame 41 included in the first isolation assembly 4 can be a one-piece frame structure or a split frame structure. The isolation frame 41 is mainly used to isolate the first conductive member 43 and the tray 1 to achieve insulation between the first conductive member 43 and the tray 1. Since the isolation frame 41 includes an isolation inner cavity 413, sufficient space can be provided for the filling of the first sealing body 42 and the installation of the first conductive member 43, improving the overcurrent temperature rise of the first connecting piece 2 and the second connecting piece 3 at the gap. At the same time, the sealing property of the connection between the tray 1 and other components (usually cold plate structure) provided on the top can be enhanced by the first sealing body 42. In the embodiments of the present application, the first conductive member 43 is provided as a bridge member for electrical connection between the first connecting piece 2 and the second connecting piece 3, i.e., the fastening property of the electrical connection between the first connecting piece 2 and the second connecting piece 3 can be ensured, and sufficient space can be provided for the installation of the first connecting piece 2 and the second connecting piece 3, so that the installation position is not limited when arranging the first electrical components and the second electrical components in the adjacent two chambers 11.

[0066] It should be noted that the isolation frame 41 in the embodiments of the present application is an insulating material, such as plastic, resin, polyethylene, polyvinyl chloride, polypropylene, polystyrene, etc. The first sealing body 42 can be any one of rubber type sealant, resin type sealant, ceramic silica gel foam, etc. For example, the first sealing body 42 can include silicon-based, polyurethane, polyether, acrylate, etc. After processing and mixing, the first sealing body 42 has good sealing performance, high and low temperature resistance, atmospheric resistance, acid and alkali resistance, corrosion resistance, aging resistance, etc., thereby being more conducive to improving the overall isolation effect of the first isolation assembly 4.

[0067] In addition, in the embodiments of the present application, when the positions of the two adjacent chambers 11 are different, the positions of the notches are also different, and the structures of the first isolation assembly 4 arranged at the notches are also different.

[0068] Specifically, in some embodiments, the tray 1 includes a bottom plate 14, a frame 15, and a cross beam 16; the frame 15 is arranged at the four peripheral edges of the bottom plate 14, and the cross beam 16 and the longitudinal beam 17 are arranged alternately in the inner cavity surrounded by the frame 15 to form a plurality of chambers 11 in the tray 1; in the first direction, a first notch 12 is arranged between two adjacent chambers 11, the first isolation assembly 4 is arranged at the first notch 12, the cross beam 16 extends in the second direction, and the first direction and the second direction are two intersecting directions.

[0069] In the embodiment, the frame 15 can be a frame type structure surrounded by a plurality of side plate structures, and the accommodating space surrounded by the frame 15 can be a square cavity, a circular cavity, or a cavity of other shapes. The crossbeam 16 can be one or more, and one crossbeam 16 separates the accommodating space surrounded by the bottom plate 14 and the frame 15 into two adjacent cavities 11. In the case of only one crossbeam 16, the crossbeam 16 separates the accommodating space into a battery cell cavity and a power distribution cavity. In the case of multiple crossbeams 16, one crossbeam 16 separates the accommodating space into a battery cell cavity and a power distribution cavity, and the remaining crossbeams 16 separate the accommodating space into multiple battery cell cavities or multiple battery cell cavities and one power distribution cavity, that is, the multiple crossbeams 16 separate the accommodating space into multiple battery cell cavities and at least one power distribution cavity. The two cavities 11 adjacent in the first direction can be a power distribution cavity and a battery cell cavity, or two battery cell cavities. In this way, the first gap 12 provided between the two cavities 11 adjacent in the first direction is a gap structure formed between the crossbeam 16 and the frame 15, and the plane on which the first gap 12 is located intersects the first direction. Based on this, since the first gap 12 is provided with the first isolation assembly 4, the first gap 13 and the first isolation assembly 4 are matched, and the isolation effect of the first isolation assembly 4 on the two adjacent cavities 11 is further ensured. In the embodiment, as shown in FIG. 1, the first direction is the direction indicated by X in FIG. 1, and the second direction is the direction indicated by Y in FIG. 1. It should be noted that the X-axis direction and the Y-axis direction intersect, and for the sake of convenience, the first direction is defined as the X-axis direction (that is, the extension direction of the crossbeam in the embodiment), and the second direction is defined as the Y-axis direction. It should be further noted that the definition of perpendicular in the specification should be understood as perpendicular within ten percent of ninety degrees, that is, in some embodiments, the first direction and the second direction can be two directions perpendicular to each other.

[0070] The specific implementation of the first gap 12 provided with the first isolation assembly 4 can be that, in some embodiments, the isolation frame 41 included in the first isolation assembly 4 includes a first insulating piece 411 and a second insulating piece 412; the first insulating piece 411 is connected at the first gap 12, and the first insulating piece 411 and the second insulating piece 412 are connected to form an isolation inner cavity 413, and a first conductive piece is installed in the isolation inner cavity 413.

[0071] The embodiment is the structure of the first isolation assembly 4 arranged between the two adjacent chambers 11 arranged longitudinally (arranged along the first direction). The first insulation piece 411 and the second insulation piece 412 are both frame-shaped structures, the first insulation piece 411 is used to be connected with the tray 1, and the second insulation piece 412 is used to form a frame structure for plugging the first gap 12. Specifically, the first insulation piece 411 is connected at the first gap 12, and the first insulation piece 411 can be connected at the corresponding cross beam 16 of the first gap 12 by means of threaded connection, clamping, riveting or the like, and then the first insulation piece 411 is connected with the second insulation piece 412 to form an isolation inner cavity 413, which is used to install the first conductive piece 43 and the first sealing body 42 in the isolation inner cavity 413. In this way, the first insulation piece 411 and the second insulation piece 412 can ensure the insulation between the first conductive piece 43 and the tray 1. In addition, the second insulation piece 412 can include a plurality of isolation inner cavities 413 sealed cavities 4122, that is, the isolation inner cavities 413 are isolated by baffles, so that the first sealing body 42 can be filled in each isolation inner cavity 413, and the second insulation piece 412 can be formed to enhance the strength of the first isolation assembly 4 as a whole.

[0072] In some embodiments, the first insulation piece 411 includes a clamping structure 4111. The clamping structure 4111 forms a clamping groove, and the cross beam 16 at the first gap 12 is at least partially clamped in the clamping groove.

[0073] In this embodiment, the clamping structure 4111 included in the first insulation piece 411 can include a first clamping plate, a second clamping plate and a top plate, the first clamping plate and the second clamping plate are arranged at intervals along the first direction, and the top plate is connected between the end of the first clamping plate and the end of the second clamping plate, so that the first clamping plate, the second clamping plate and the top plate form a "inverted U" structure to form a clamping groove between the first clamping plate, the second clamping plate and the top plate. In this way, the cross beam 16 at the first gap 12 can be at least partially clamped in the clamping groove, that is, the first clamping plate is attached to one side of the cross beam 16 at the first gap 12, and the second clamping plate is attached to the other side of the cross beam 16 at the first gap 12, so that the clamping structure 4111 at least covers part of the area of the cross beam 16 at the first gap 12. Not only is the installation between the first insulation piece 411 and the cross beam 16 facilitated, but also the strength of the first gap 12 can be improved by the first insulation piece 411, and sufficient space can be provided for the installation of the second insulation piece 412 by the first insulation piece 411.

[0074] In some embodiments, the first insulation piece 411 further includes a connecting structure 4112 arranged on the end face of the clamping structure 4111 away from the first gap 12, and the connecting structure 4112 is detachably connected with the first conductive piece 43.

[0075] In this embodiment, a connecting structure 4112 can be arranged on the top of the clamping structure 4111, which can be a protruding structure, a clamping structure or other forms of structure, so as to provide a mounting point and a positioning point for the connection of the first conductive member 43, thereby facilitating the assembly of the first isolation assembly 4 as a whole and improving the preparation efficiency of the battery pack 10.

[0076] In some embodiments, the connecting structure 4112 includes at least one first buckle 41121, and the first conductive member 43 includes at least one first clamping groove 431, and the first buckle 41121 is clamped in the first clamping groove 431.

[0077] In this embodiment, since the connecting structure 4112 includes at least one first buckle 41121, and the first conductive member 43 includes at least one first clamping groove 431, and the first clamping groove 431 is clamped in the first buckle 41121, when the first conductive member 43 and the first insulating member 411 are assembled, the assembly of the first conductive member 43 and the first insulating member 411 can be achieved only by clamping the first clamping groove 431 in the first buckle 41121, so that the assembly of the first isolation assembly 4 as a whole is more convenient.

[0078] In addition, in some embodiments, the first conductive member 43 can be formed with a first protruding structure and a second protruding structure on the surface away from the clamping structure 4111, the first connecting piece 2 and the second connecting piece 3 can be in a bent sheet shape, the first connecting piece 2 can be provided with a first assembly hole, the second connecting piece 3 can be provided with a second assembly hole, the first protruding structure is installed in the first assembly hole, and the second protruding structure is installed in the second assembly hole, thereby increasing the electrical connection area between the first connecting piece 2 and the first conductive member 43 and the electrical connection area between the second connecting piece 3 and the first conductive member 43, and ensuring the electrical connection stability between the first electrical member and the second electrical member.

[0079] In some embodiments, the connecting structure 4112 further includes a positioning member 41122, and the first conductive member 43 includes a positioning hole 432, and the positioning member 41122 is inserted into the positioning hole 432.

[0080] In this embodiment, the positioning member 41122 can be a positioning pin, a positioning column, a positioning block or the like, and the hole type of the positioning hole 432 is matched with the structure of the positioning member 41122, so that by inserting the positioning member 41122 into the positioning hole 432, the pre-positioning can be achieved when the first conductive member 43 and the first insulating member 411 are assembled, and the first buckle 41121 can be inserted into the first clamping groove 431.

[0081] In some embodiments, the connecting structure 4112 comprises a first isolation sheet 41123 and a second isolation sheet 41124 arranged oppositely; the first isolation sheet 41123 and the second isolation sheet 41124 both extend away from the clamping structure 4111, and the first conductive member 43 is detachably connected between the first isolation sheet 41123 and the second isolation sheet 41124; the first isolation sheet 41123 is located between the horizontal beam 16 and the first conductive member 43, the second isolation sheet 41124 is located between the vertical beam 17 and the first conductive member 43, or the second isolation sheet 41124 is located between the frame 15 and the first conductive member 43.

[0082] In this embodiment, the first isolation sheet 41123 and the second isolation sheet 41124 can extend away from the clamping structure 4111, i.e., so that the first isolation sheet 41123, the second isolation sheet 41124 and the top plate form a containing space for containing the first conductive member 43. After the first conductive member 43 is detachably connected between the first isolation sheet 41123 and the second isolation sheet 41124, the first isolation sheet 41123 is located between the horizontal beam 16 and the first conductive member 43, the second isolation sheet 41124 is located between the vertical beam 17 and the first conductive member 43, or the second isolation sheet 41124 is located between the frame 15 and the first conductive member 43, thereby ensuring that the first conductive member 43 and the tray 1 are in a completely insulated state through the first isolation sheet 41123 and the second isolation sheet 41124.

[0083] In some embodiments, the first isolation sheet 41123 and the second isolation sheet 41124 are both provided with a second clamping groove 411231; the second insulating member 412 is provided with a second clamping buckle 4121 on both ends in the first direction, and the second clamping buckle 4121 and the second clamping groove 411231 are clamped.

[0084] In this embodiment, the second clamping groove 411231 can extend along the first direction, and the plane formed by the second clamping groove 411231 intersects the second direction, and the second clamping buckle 4121 is a protruding structure arranged on both ends of the second insulating member 412 in the first direction. In this way, by clamping the second clamping buckle 4121 and the second clamping groove 411231, the connection between the first insulating member 411 and the second insulating member 412 can be achieved, which facilitates the connection of the first insulating member 411 and the second insulating member 412 and is conducive to the first insulating member 411 and the second insulating member 412 forming an integral frame-shaped structure.

[0085] In some embodiments, the clamping structure 4111 is further provided with at least one connecting plate 41111 at the end in the second direction; the connecting plate 41111 extends along the first direction, and the connecting plate 41111 faces the vertical beam 17 or the frame 15, and the connecting plate 41111 is attached to the vertical beam 17 or the frame 15.

[0086] In this embodiment, the connecting plate 41111 is a sheet structure protruding from the end of the clamping structure 4111 in the second direction, and the connecting plate 41111 can be one or two. Since the connecting plate 41111 is attached to the longitudinal beam 17 or the frame 15, the connecting plate 41111 can establish a connection relationship with the longitudinal beam 17 or the frame 15, thereby making the installation of the first insulating part 411 more secure.

[0087] In addition to the first gap 12, in some embodiments, the tray 1 further comprises a longitudinal beam 17 arranged in the inner cavity surrounded by the frame 15 in the first direction and staggered with the cross beam 16 to form a plurality of chambers 11 in the tray 1. In the second direction, a second gap 13 is arranged between two adjacent chambers 11 near the frame 15, and a second isolation assembly 5 is arranged at the second gap 13. The second isolation assembly 5 comprises a third insulating part 51, an insulating support 52, a second conductive part 53 and a second sealing body 54. The third insulating part 51 is attached to the frame 15, the insulating support 52 is connected at the second gap 13, one end of the insulating support 52 in the first direction is connected with the third insulating part 51, the other end of the insulating support 52 in the first direction is connected with the longitudinal beam 17, the insulating support 52 forms an insulating inner cavity 523, and the second sealing body 54 is filled in the insulating inner cavity 523; the second conductive part 53 is arranged between the third insulating part 51 and the insulating support 52.

[0088] In this embodiment, since the power distribution assembly installed in the power distribution cavity needs to be electrically connected with other parts outside, in order to facilitate wiring, the power distribution cavity is usually arranged in the chamber 11 near the frame 15, that is, the two adjacent chambers 11 near the frame 15 in the second direction are a power distribution cavity and a battery cavity, in other words, the second gap 13 is a gap arranged between the power distribution cavity and the battery cavity.

[0089] It should be noted that the third insulating piece 51 can be a plate structure, and the third insulating piece 51 can be attached to the frame 15 by bonding, clamping, screwing or the like, so that the second conductive piece 53 can be arranged between the third insulating piece 51 and the insulating support 52, thereby realizing the insulation between the second conductive piece 53 and the frame 15. The insulating support 52 can be an integral frame structure or a split frame structure. Since the insulating support 52 is connected at the second gap 13, and one end of the insulating support 52 in the first direction is connected with the third insulating piece 51, and the other end of the insulating support 52 in the first direction is connected with the longitudinal beam 17, the insulating support 52 forms an insulating inner cavity 523, and the second sealing body 54 is filled in the insulating inner cavity, so that the second gap 13 can be plugged and sealed by the insulating support 52, and the gas is prevented from flowing through the second gap 13 between adjacent chambers 11 by the second sealing body 54, thereby further delaying or even preventing the heat diffusion of the battery pack 10.

[0090] For the structure of the above-mentioned insulating support 52, in some embodiments, the insulating support 52 includes a fourth insulating piece 521 and a fifth insulating piece 522; the fourth insulating piece 521 and the fifth insulating piece 522 are detachably connected to form the insulating inner cavity 523, the fourth insulating piece 521 is connected to the third insulating piece 51, and the fifth insulating piece 522 is connected to the longitudinal beam 17.

[0091] In this embodiment, the insulating support 52 is a split structure, and the fourth insulating piece 521 and the fifth insulating piece 522 can be connected by detachable connection modes such as clamping, inserting, screwing or the like, so that the fourth insulating piece 521 and the fifth insulating piece 522 form the insulating inner cavity 523 which can be filled with the second sealing body 42. Then the fourth insulating piece 521 is connected to the third insulating piece 51, and the fifth insulating piece 522 is connected to the longitudinal beam 17, thereby fixing the insulating support 52 between the tray 1 and the third insulating piece 51.

[0092] For the structure of the fourth insulating piece 521 and the structure of the fifth insulating piece 522 mentioned above, in some embodiments, the fourth insulating piece 521 is a box structure, and the fifth insulating piece 522 includes a connecting portion 5221 and an inserting portion 5222; the connecting portion 5221 is a buckle structure, and the buckle structure is clamped on the side of the fourth insulating piece 521 away from the third insulating piece 51, and the inserting portion 5222 is inserted into the inside of the longitudinal beam 17.

[0093] In the embodiment, the fourth insulation member 521 can include a box structure formed by two opposite insulation plates, and the second sealing body 42 is filled between the two opposite insulation plates. The fourth insulation member 521 can also be a box structure including two opposite insulation plates and an insulation side plate, and the second sealing body 42 is filled between the two opposite insulation plates and the insulation side plate. In this way, the fifth insulation member 522 includes a connecting portion 5221 and a plug-in portion 5222. The connecting portion 5221 is a buckle structure, and the buckle structure is connected to the side of the fourth insulation member 521 away from the third insulation member 51. The plug-in portion 5222 is plugged into the inside of the longitudinal beam 17 structure. Therefore, the fifth insulation member 522 can increase the connection points between the insulation support 52 and the longitudinal beam 17, and the assembly of the insulation support 52 is more stable.

[0094] Further, in some embodiments, the third insulation member 51 is provided with a clamping table 511 near the position of the gap. The third insulation member 51 is also provided with a clamping through slot 512, and the clamping through slot 512 is located on the side of the clamping table 511 away from the gap. The fourth insulation member 521 is plugged into the clamping through slot 512, and the end of the fourth insulation member 521 towards the second gap 12 is plugged into the clamping table 511.

[0095] In the embodiment, the fourth insulation member 521 is plugged into the clamping through slot 512, and the end of the fourth insulation member 521 towards the second gap 12 is plugged into the clamping table 511. Therefore, the third insulation member 51 and the fourth insulation member 521 are detachably connected. When the third insulation member 51 and the fourth insulation member 521 are assembled, the connection between the third insulation member 51 and the fourth insulation member 521 has a predetermined position, which ensures the connection between the third insulation member 51 and the fourth insulation member 521. After the second sealing body 42 is filled, the two adjacent cavities 11 can be completely isolated.

[0096] In some embodiments, the second conductive member 53 includes a first conductive row 531, a second conductive row 532, a third conductive sheet 533, and a fourth conductive sheet 534. The first conductive sheet 533 is connected to the first side of the fourth insulation member 521, and the second conductive sheet 534 is connected to the second side of the fourth insulation member 521. The first conductive row 531 and the second conductive row 532 are arranged near the frame 15. One end of the first conductive row 531 is connected to the first conductive sheet 533 through the gap between the fourth insulation member 521 and the third insulation member 51. One end of the second conductive row 532 is connected to the second conductive sheet 534. The first side and the second side are two surfaces of the fourth insulation member 521 in the second direction.

[0097] In the embodiment, since the first conductive row 531 and the second conductive row 532 are arranged close to the frame 15, one end of the first conductive row 531 is connected through the gap between the fourth insulating piece 521 and the third insulating piece 51 and the first conductive sheet 533, and one end of the second conductive row 532 is connected with the second conductive sheet 534, so that the first conductive row 531 and the second conductive row 532 can be completely insulated from the tray 1 under the action of the third insulating piece 51 and the fourth insulating piece 521, and short circuit of the first conductive row 531 and the second conductive row 532 during electrical connection can be avoided.

[0098] As can be seen from the above embodiment, in the embodiment, since the first electrical component and the second electrical component are respectively arranged in the two adjacent cavities 11, and the first connecting sheet 2 included in the first electrical component and the second connecting sheet 3 included in the second electrical component are electrically connected at the gap, the electrical connection between the first electrical component and the second electrical component in the two adjacent cavities can be realized through the first connecting sheet 2 and the second connecting sheet 3. In addition, since the first isolation assembly 4 includes the isolation frame 41, the first sealing body 42 and the first conductive component 43, the isolation frame 41 is connected at the gap, the isolation frame 41 includes the isolation inner cavity 413, and the first sealing body 42 is filled in the isolation inner cavity 413, so that the cavities are independent of each other, and the partition control can be realized when thermal runaway occurs. The gas can be isolated in the cavity 11 where the gas diffusion occurs through the first isolation assembly 4, so as to avoid the gas flowing through the first gap between the adjacent cavities 11, and further delay or prevent the thermal diffusion of the battery pack 10. In addition, the first connecting sheet 2 and the second connecting sheet 3 are connected to the first conductive component 43, and at least part of the first conductive component 43 is sealingly connected in the isolation inner cavity 413, so that the stability of the electrical connection between the first electrical component and the second electrical component can be ensured through the first conductive component 43, and the short circuit between the first conductive component 43 and the tray 1 can be avoided through the first sealing body 42 in the isolation frame 41.

[0099] In addition, in the embodiment, since the first isolation assembly 4 is arranged at the first gap 12, and the second isolation assembly 5 is arranged at the second gap 13, different isolation assemblies can be arranged at different gaps, so that the gap and the isolation assembly are matched, and the isolation effect of the isolation assembly 4 on the two adjacent cavities 11 is further ensured.

[0100] Optionally, referring to FIG. 12, in the embodiment, a kind of electric equipment 60 is provided, including the battery pack 10 described in any one of the foregoing embodiments.

[0101] In the embodiments of the present application, since the power consuming device 60 in the embodiments of the present application comprises the battery pack 10 described in any of the foregoing embodiments, and further comprises all the beneficial effects of the battery pack 10, the embodiments will not be described here. The power consuming device 60 can be any of a vehicle, an energy storage cabinet, an aircraft, a computer, and the like, and the embodiments of the present application do not limit the power consuming device 60.

[0102] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles, or devices that comprise a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element. In addition, it should be pointed out 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, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0103] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the specific embodiments described above, which are only illustrative and not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A battery pack (10), comprising: a tray (1) provided with at least two adjacent chambers (11), a gap being formed between the two adjacent chambers (11); a first electrical component and a second electrical component respectively installed in the two adjacent chambers (11), and a first connecting plate (2) of the first electrical component and a second connecting plate (3) of the second electrical component being electrically connected at the gap; a first isolation assembly (4) comprising an isolation frame (41), a first sealing body (42) and a first conductive component (43), the isolation frame (41) being connected at the gap, the isolation frame (41) comprising an isolation inner cavity (413), the first sealing body (42) being filled in the isolation inner cavity (413), the first connecting plate (2) and the second connecting plate (3) being connected on the first conductive component (43), and at least part of the first conductive component (43) being sealingly connected in the isolation inner cavity (413).

2. The battery pack (10) of claim 1, wherein, The tray (1) comprises a bottom plate (14), a frame (15) and a cross beam (16); The frame (15) is arranged at the four peripheral edges of the bottom plate (14), and the cross beam (16) is arranged in an inner cavity surrounded by the frame (15) to form a plurality of chambers (11) in the tray (1); In a first direction, a first gap (12) is arranged between the two adjacent chambers (11), the first isolation assembly (4) is arranged at the first gap (12), and the cross beam (16) extends in a second direction, the first direction and the second direction being two intersecting directions.

3. The battery pack (10) of claim 2, wherein, The isolation frame (41) comprises a first insulating component (411) and a second insulating component (412); The first insulating component (411) is connected at the first gap (12), and the first insulating component (411) and the second insulating component (412) are connected to form the isolation inner cavity (413), and the first conductive component (43) is installed in the isolation inner cavity (413).

4. The battery pack (10) of claim 3, wherein, The first insulating component (411) comprises a clamping structure (4111); The clamping structure (4111) forms a clamping groove, and the cross beam (16) at the first gap (12) is at least partially clamped in the clamping groove.

5. The battery pack (10) of claim 4, wherein, The first insulating component (411) further comprises a connecting structure (4112); The connecting structure (4112) is arranged on an end face of the clamping structure (4111) away from the first gap (12), and the connecting structure (4112) and the first conductive component (43) are detachably connected.

6. The battery pack (10) of claim 5, wherein, The connecting structure (4112) comprises at least one first buckle (41121), and the first conductive component (43) comprises at least one first clamping groove (431), and the first buckle (41121) is clamped in the first clamping groove (431).

7. The battery pack (10) according to claim 5 or 6, wherein The connecting structure (4112) comprises a positioning component (41122), and the first conductive component (43) comprises a positioning hole (432), and the positioning component (41122) is inserted into the positioning hole (432).

8. The battery pack (10) according to any one of claims 5-7, wherein, The tray (1) further comprises longitudinal beams (17) arranged in the inner cavity surrounded by the frame (15) and staggered with the cross beams (16) in the first direction, and the connecting structure (4112) comprises a first isolation sheet (41123) and a second isolation sheet (41124) arranged oppositely; The first isolation sheet (41123) and the second isolation sheet (41124) extend away from the clamping structure (4111), the first conductive part (43) is detachably connected between the first isolation sheet (41123) and the second isolation sheet (41124), the first isolation sheet (41123) is located between the cross beam (16) and the first conductive part (43), and the second isolation sheet (41124) is located between the longitudinal beam (17) and the first conductive part (43), or the second isolation sheet (41124) is located between the frame (15) and the first conductive part (43).

9. The battery pack (10) of claim 8, wherein, Second clamping grooves (411231) are formed in the first isolation sheet (41123) and the second isolation sheet (41124); Second buckles (4121) are arranged on both ends of the second insulating part (412) in the first direction, and the second buckles (4121) are clamped with the second clamping grooves (411231).

10. The battery pack (10) according to any one of claims 5-9, wherein, The tray (1) further comprises longitudinal beams (17) arranged in the inner cavity surrounded by the frame (15) and staggered with the cross beams (16) in the first direction, and the clamping structure (4111) is further provided with at least one connecting plate (41111) at the end in the second direction; The connecting plate (41111) extends in the first direction, and the connecting plate (41111) is attached to the side surface of the longitudinal beam (17), or the connecting plate (41111) is attached to the frame (15).

11. The battery pack (10) according to any one of claims 2-10, wherein, The tray (1) further comprises longitudinal beams (17) arranged in the inner cavity surrounded by the frame (15) and staggered with the cross beams (16) in the first direction, so as to form a plurality of chambers (11) in the tray (1), and a second gap (13) is arranged between adjacent two chambers (11) in the second direction close to the frame (15), and a second isolation assembly (5) is arranged at the second gap (13), wherein the second isolation assembly (5) comprises a third insulating part (51), an insulating support (52), a second conductive part (53), and a second sealing body (54); The third insulating part (51) is attached to the frame (15), the insulating support (52) is connected at the second gap (13), one end of the insulating support (52) in the first direction is connected with the third insulating part (51), the other end of the insulating support (52) in the first direction is connected with the longitudinal beam (17), the insulating support (52) forms an insulating inner cavity (523), and the second sealing body (54) is filled in the insulating inner cavity; The second conductive member (53) is arranged between the third insulating member (51) and the insulating support (52).

12. The battery pack (10) of claim 11, wherein, The insulating support (52) comprises a fourth insulating member (521) and a fifth insulating member (522). The fourth insulating member (521) and the fifth insulating member (522) are detachably connected to form the insulating inner cavity (523), the fourth insulating member (521) is connected to the third insulating member (51), and the fifth insulating member (522) is connected to the longitudinal beam (17).

13. The battery pack (10) of claim 12, wherein, The fourth insulating member (521) is a box body structure, and the fifth insulating member (522) comprises a connecting portion (5221) and a plug-in portion (5222). The connecting portion (5221) is a buckle structure, which is clamped on the side of the fourth insulating member (521) away from the third insulating member (51), and the plug-in portion (5222) is plugged into the inside of the longitudinal beam (17).

14. The battery pack (10) according to claim 12 or 13, wherein The third insulating member (51) is provided with a clamping table (511) near the position of the second notch (13), and the third insulating member (51) is also provided with a clamping through slot (512) located on the side of the clamping table (511) away from the second notch (13). The fourth insulating member (521) is plugged into the clamping through slot (512), and the end of the fourth insulating member (521) towards the second notch (13) is plugged into the clamping table (512).

15. The battery pack (10) according to any one of claims 12-14, wherein, The second conductive member (53) comprises a first conductive row (531), a second conductive row (532), a first conductive sheet (533) and a second conductive sheet (534), the first conductive sheet (533) is connected to the first side of the fourth insulating member (521), and the second conductive sheet (534) is connected to the second side of the fourth insulating member (521). The first conductive row (531) and the second conductive row (532) are arranged near the frame (15), one end of the first conductive row (531) passes through the gap between the fourth insulating member (522) and the third insulating member (51) and is connected to the first conductive sheet (533), and one end of the second conductive row (532) is connected to the second conductive sheet (534), wherein the first side and the second side are two surfaces of the fourth insulating member (521) opposite to each other in the second direction.

16. An electrical device (60), comprising the battery pack (10) according to any one of claims 1 to 15.

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