Battery pack and electric equipment

Abstract

The utility model discloses a battery pack and electric equipment. The battery pack comprises a tray which is at least provided with two adjacent cavities, and a notch is formed between the two adjacent cavities; a first electrical part and a second electrical part, wherein a first connecting sheet of the first electrical part and a second connecting sheet of the second electrical part are electrically connected at the gap; the first isolation assembly comprises an isolation frame, a first sealing body and a first conductive piece, the isolation frame is connected to the notch and comprises an isolation inner cavity, the isolation inner cavity is filled with the first sealing body, and the first connecting piece and the second connecting piece are connected to the first conductive piece; and at least part of the first conductive part is hermetically connected in the isolation inner cavity. Therefore, the chambers are mutually independent, partition control can be realized when thermal runaway occurs, gas can be isolated in the chambers where gas diffusion occurs through the first isolation assembly, the gas is prevented from circulating between the adjacent chambers through the first gaps, and the safety of the battery is improved.

Description

Technical Field

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

[0002] Currently, battery packs typically consist of a tray, cell groups, and a power distribution assembly. The tray has multiple compartments, one or two of which house the power distribution assembly, while the remaining compartments house the cell groups. Electrical connections between adjacent cell groups, and between the power distribution assembly and adjacent cell groups, are typically made through notches in the tray.

[0003] However, when the battery cell group is out of control, it is easy to generate a large amount of heat and gas. The gas will flow between adjacent chambers through the gaps of the notch, causing other modules to trigger thermal runaway, which can easily cause battery pack safety accidents and reduce the safety performance of the battery pack. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a battery pack and electrical equipment that can solve the problem in the prior art that when the battery cell group is out of control, the gas generated causes crosstalk, resulting in thermal runaway of the battery pack.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a battery pack, comprising:

[0007] The tray is provided with at least two adjacent chambers, with a gap formed between the two adjacent chambers;

[0008] A first electrical component and a second electrical component are respectively installed in two adjacent chambers, 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;

[0009] A first isolation component, the first isolation component includes an isolation frame, a first sealing body and a first conductive member, the isolation frame is connected at the notch, the isolation frame includes 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 to the first conductive member, and at least a portion of the first conductive member is sealed and connected in the isolation inner cavity.

[0010] In an embodiment of the present application, since the first electrical component and the second electrical component are respectively installed in two adjacent chambers, 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 notch, the electrical connection between the first electrical component and the second electrical component in the two adjacent chambers can be achieved through the first connecting piece and the second connecting piece. In addition, since the first isolation assembly includes an isolation frame, a first sealing body and a first conductive member, the isolation frame is connected at the notch, the isolation frame includes an isolation cavity, and the first sealing body fills the isolation cavity, the chambers are independent of each other, and zoning control can be achieved in the event of thermal runaway. The first isolation assembly can isolate gas in the chamber where gas diffusion occurs, preventing gas from flowing between adjacent chambers through the first notch, further delaying or even preventing thermal diffusion of the battery pack. In addition, the first connecting piece and the second connecting piece are connected to the first conductive member, and at least a portion of the first conductive member is sealed and connected in the isolation cavity. Therefore, the stability of the electrical connection between the first electrical component and the second electrical component can be ensured by the first conductive member, and the provision of the first sealing body in the isolation frame can prevent the first conductive member and the tray from shorting.

[0011] Optionally, the tray includes a bottom plate, a frame and a crossbeam;

[0012] The frame is arranged at the four edges of the bottom plate, and the crossbeam is arranged in the inner cavity surrounded by the frame to form a plurality of chambers in the tray;

[0013] In the first direction, a first gap is provided between two adjacent chambers, the first isolation assembly is provided at the first gap, the beam extends along the second direction, and the first direction and the second direction are two intersecting directions.

[0014] Optionally, the isolation frame includes a first insulating member and a second insulating member;

[0015] The first insulating member is connected at the first notch. The first insulating member and the second insulating member are connected to form the isolation inner cavity. The first conductive member is installed in the isolation inner cavity.

[0016] Optionally, the first insulating member includes a clamping structure;

[0017] The clamping structure forms a clamping groove, and the crossbeam at the first notch is at least partially clamped in the clamping groove.

[0018] Optionally, the first insulating member further includes a connecting structure;

[0019] The connecting structure is provided on an end surface of the clamping structure away from the first notch, and the connecting structure and the first conductive member are detachably connected.

[0020] Optionally, the connection structure includes at least one first clip, the conductive block includes at least one first slot, and the first clip is clipped into the first slot.

[0021] Optionally, the connection structure includes a positioning member, the first conductive member includes a positioning hole, and the positioning member is inserted into the positioning hole.

[0022] Optionally, the connection structure includes a first isolation sheet and a second isolation sheet disposed opposite to each other;

[0023] The first isolation sheet and the second isolation sheet both extend in a direction away from the snap-on structure, the first conductive member is detachably connected between the first isolation sheet and the second isolation sheet, the first isolation sheet is located between the beam and the conductive block, the second isolation sheet is located between the frame and the first conductive member, or the second isolation sheet is located between the frame and the first conductive member.

[0024] Optionally, a second card slot is provided on both the first isolation sheet and the second isolation sheet;

[0025] Second buckles are provided on both ends of the second insulating member in the first direction, and the second buckles are engaged with the second clamping grooves.

[0026] Optionally, the clamping structure is further provided with at least one connecting plate at the end portion in the second direction;

[0027] The connecting plate extends along the first direction and is attached to the frame.

[0028] Optionally, the tray further includes a longitudinal beam, which extends along the first direction and is arranged in the inner cavity surrounded by the frame and is staggered with the cross beam to form a plurality of the chambers in the tray; in the second direction, a second gap is provided between two adjacent chambers near the frame; a second isolation assembly is provided at the second gap, and the second isolation assembly includes a third insulating member, an insulating bracket, a second conductive member, and a second sealing body;

[0029] The third insulating member is attached to the frame, the insulating bracket is connected to the second notch, and one end of the insulating bracket in the first direction is connected to the third insulating member, and the other end of the insulating bracket in the first direction is connected to the longitudinal beam. The insulating bracket forms the insulating inner cavity, and the second sealing body is filled in the insulating inner cavity;

[0030] The second conductive member is disposed between the third insulating member and the insulating support.

[0031] Optionally, the insulating bracket includes a fourth insulating member and a fifth insulating member;

[0032] The fourth insulating member and the fifth insulating member are detachably connected to form the insulating inner cavity. The fourth insulating member is connected to the third insulating member, and the fifth insulating member is connected to the longitudinal beam.

[0033] Optionally, the fourth insulating member is a box structure, and the fifth insulating member includes a connecting portion and a plug-in portion;

[0034] The connecting portion is a snap-fit ​​structure, the snap-fit ​​structure is snap-fitted to a side of the fourth insulating member away from the third insulating member, and the plug-in portion is plugged into the interior of the longitudinal beam.

[0035] Optionally, a clamping platform is provided at a position of the third insulating member close to the second notch, and the third insulating member is further provided with a clamping slot, and the clamping slot is located on a side of the clamping platform away from the second notch;

[0036] The fourth insulating member is inserted into the card-connecting groove, and the end portion of the fourth insulating member facing the second notch is inserted into the card-connecting platform.

[0037] Optionally, the second conductive member includes a first conductive row, a second conductive row, a first conductive sheet, and a second conductive sheet, the first conductive sheet is connected to the first side surface of the fourth insulating member, and the second conductive sheet is connected to the second side surface of the fourth insulating member;

[0038] The first conductive row and the second conductive row are arranged close to the frame, one end of the first conductive row passes through the gap between the fourth insulating member and the third insulating member and is connected to the first conductive sheet, 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 member facing each other in the second direction.

[0039] In a second aspect, an embodiment of the present invention further provides an electrical device, which includes the battery pack described in any embodiment of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 is a schematic structural diagram of a battery pack in an embodiment of the present application;

[0042] Figure 2 The battery in the embodiment of the present application is Figure 1 A local enlarged schematic diagram of point A;

[0043] Figure 3 1 is a schematic diagram of the assembly of a first isolation component and a tray included in a battery in an embodiment of the present application;

[0044] Figure 4 1 is a schematic structural diagram of a conductive member included in a first isolation assembly of a battery in an embodiment of the present application;

[0045] Figure 5 1 is a schematic structural diagram of a first insulating member included in a first isolation assembly of a battery in an embodiment of the present application;

[0046] Figure 6 1 is a schematic diagram of the assembly of a first insulating member and a conductor included in a first isolation assembly of a battery in an embodiment of the present application;

[0047] Figure 7 1 is a schematic structural diagram of a second insulating member included in a first isolation assembly of a battery in an embodiment of the present application;

[0048] Figure 8 The battery in the embodiment of the present application is Figure 1 A local enlarged schematic diagram of point B;

[0049] Figure 9 1 is a schematic structural diagram of a second isolation assembly included in a battery in an embodiment of the present application;

[0050] Figure 10 1 is a schematic structural diagram of a third insulating member included in a second isolation assembly of a battery in an embodiment of the present application;

[0051] Figure 11 It is a structural schematic diagram of the insulating bracket included in the second isolation component included in the battery in the embodiment of the present application.

[0052] Description of reference numerals:

[0053] 1: Tray; 11: Chamber; 12: First notch; 13: Second notch; 14: Bottom plate; 15: Frame; 16: Crossbeam; 17: Longitudinal beam; 2: First connecting piece; 3: Second connecting piece; 4: First isolation assembly; 41: Isolation frame; 411: First insulating member; 4111: Snap-fit ​​structure; 41111: Connecting plate; 4112: Connecting structure; 41121: First buckle; 41122: Positioning member; 41123: First isolation piece; 411231: Second slot; 41124: Second isolation piece; 412 : Second insulating member; 4121: Second buckle; 413: Isolation cavity; 42: First sealing body; 43: First conductive member; 431: First slot; 432: Positioning hole; 5: Second isolation assembly; 51: Third insulating member; 511: Snap-on platform; 512: Snap-on slot; 52: Insulation bracket; 521: Fourth insulating member; 522: Fifth insulating member; 5221: Connecting portion; 5222: Inserting portion; 523: Insulation cavity; 53: Second conductive member; 531: First conductive bar; 532: Second conductive bar; 533:

[0054] First conductive sheet; 534: second conductive sheet; 54: second sealing body. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0056] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0057] The battery pack and electrical equipment provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0058] See also Figures 1 to 11 , an embodiment of the present application provides a battery pack, the battery pack comprising:

[0059] The tray 1 is provided with at least two adjacent chambers 11 , and a gap is defined between the two adjacent chambers 11 .

[0060] The first electrical component and the second electrical component are respectively installed in 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 notch.

[0061] The first isolation component 4 includes an isolation frame 41, a first sealing body 42 and a first conductive member 43. The isolation frame 41 is connected at the notch. 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 member 43. At least part of the first conductive member 43 is sealed and connected in the isolation inner cavity 413.

[0062] It can be seen from the above embodiments that in the embodiments of the present application, since the first electrical component and the second electrical component are respectively installed in 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 notch, the electrical connection between the first electrical component and the second electrical component in the two adjacent chambers can be achieved through the first connecting piece 2 and the second connecting piece 3. In addition, since the first isolation component 4 includes an isolation frame 41, a first sealing body 42 and a first conductive member 43, the isolation frame 41 is connected at the notch, the isolation frame 41 includes an isolation cavity 413, and the first sealing body 42 is filled in the isolation cavity 413, the chambers are independent of each other, and zoning control can be achieved when thermal runaway occurs. The first isolation component 4 can be used to isolate the gas in the chamber 11 where gas diffusion occurs, to prevent the gas from circulating between adjacent chambers 11 through the first notch 12, further delaying or even preventing thermal diffusion of the battery pack. In addition, the first connecting piece 2 and the second connecting piece 3 are connected to the first conductive part 43, and at least part of the first conductive part 43 is sealed and connected in the isolation cavity 413. Therefore, the stability of the electrical connection between the first electrical part and the second electrical part can be ensured by the first conductive part 43, and the short circuit between the first conductive part 43 and the tray 1 can be avoided by the setting of the first sealing body 42 in the isolation frame 41.

[0063] In the above embodiment, the chambers 11 included in the tray 1 can be arranged linearly, in a matrix, or in other arrangements. The specific number of chambers 11 included in the tray 1 is determined according to the number of the first electrical components and the second electrical components included in the battery pack, and the embodiments of the present application do not limit this. For example, the chambers 11 included in the tray 1 are arranged in a matrix of three rows and two columns, or in a matrix of three rows and three columns. The chambers 11 can include a chamber 11 for accommodating the first electrical component and a chamber 11 for accommodating the second electrical component. In an exemplary embodiment, the first electrical component can be a power distribution assembly, and the second electrical component can be a battery cell group. The chamber 11 can include a power distribution cavity and a battery cell cavity, wherein the number of power distribution cavities can be one or more, and the number of battery cell cavities is greater than the power distribution cavity. When the number of power distribution cavities is greater than or equal to 2, at least one battery cell cavity is provided between two adjacent power distribution cavities. Two adjacent chambers 11 can be a battery cell cavity and a power distribution cavity, that is, the first electrical component is a power distribution assembly, and the second electrical component is a battery cell group. The two adjacent chambers 11 may also be two cell chambers, that is, the first electrical component and the second electrical component are both cell groups. The cell groups are used for charging and discharging to achieve energy storage and release, and the power distribution assembly is used to manage the charging and discharging of the cell groups.

[0064] Since the battery cell group may experience thermal runaway during operation, resulting in the generation of hot smoke, based on this, in order to protect the battery pack, a first isolation component 4 is provided in the embodiment of the present application. The isolation frame 41 included in the first isolation component 4 can be an integrated 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 an insulation setting between the first conductive member 43 and the tray 1. Since the isolation frame 41 includes an isolation cavity 413, the isolation cavity 413 can provide sufficient space for filling the first sealing body 42 and installing the first conductive member 43, thereby improving the overcurrent temperature rise of the first connecting piece 2 and the second connecting piece 3 at the notch. At the same time, the first sealing body 42 can strengthen the sealing of the connection between the tray 1 and other components arranged on the top (usually a cold plate structure). In an embodiment of the present application, a first conductive member 43 is provided as a bridge member for the electrical connection between the first connecting piece 2 and the second connecting piece 3, which can ensure the tightness of the electrical connection between the first connecting piece 2 and the second connecting piece 3, and provide sufficient space for the installation of the first connecting piece 2 and the second connecting piece 3, so that the installation position of the first electrical component and the second electrical component is not restricted when they are arranged in two adjacent chambers 11.

[0065] It should be noted that the isolation frame 41 in the embodiment of the present application is an insulating material, such as plastic, resin, polyethylene, polyvinyl chloride, polypropylene, polystyrene and other materials, and the first sealing body 42 can be any one of the sealing fillers such as rubber-type sealant, resin-type sealant, ceramic silicone foam, etc. Exemplarily, the first sealing body 42 can include silicone-based, polyurethane, polyether, acrylate and other raw materials. 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 and other characteristics, which is more conducive to improving the overall isolation effect of the first isolation component 4.

[0066] In addition, in the embodiment of the present application, when the positions of two adjacent chambers 11 are different, the positions of the gaps are also different, and the structures of the first isolation components 4 provided at the gaps are also different.

[0067] Specifically, in some embodiments, the pallet 1 includes a bottom plate 14, a frame 15 and a crossbeam 16; the frame 15 is arranged at the four edges of the bottom plate 14, and the crossbeam 16 is arranged in the inner cavity surrounded by the frame 15 to form a plurality of chambers 11 in the pallet 1; in the first direction, a first gap 12 is provided between two adjacent chambers 11, a first isolation component 4 is provided at the first gap 12, and the crossbeam 16 extends along the second direction, and the first direction and the second direction are two intersecting directions.

[0068] In this embodiment, the frame 15 can be a frame-type structure surrounded by multiple side panel structures, and the accommodation space surrounded by the frame 15 can be a square cavity, a circular cavity, or a cavity of other shapes. There can be one or more crossbeams 16, one of which separates the accommodation space surrounded by the bottom plate 14 and the frame 15 into two adjacent chambers 11. In the case of only one crossbeam 16, the crossbeam 16 separates the accommodation space into a battery cell cavity and a distribution cavity. In the case of multiple crossbeams 16, one of the crossbeams 16 separates the accommodation space into a battery cell cavity and a distribution cavity, and the remaining crossbeams 16 separate the accommodation space into multiple battery cell cavities or multiple battery cell cavities and a distribution cavity, that is, multiple crossbeams 16 separate the accommodation space into multiple battery cell cavities and at least one distribution cavity. Two adjacent chambers 11 in the first direction can be a distribution cavity and a battery cell cavity, or two battery cell cavities. In this way, the first gap 12 provided between two adjacent chambers 11 in the first direction is a gap structure formed between the crossbeam 16 and the frame 15, and the plane where the first gap 12 is located intersects the first direction. Based on this, since the first gap 12 is provided with the first isolation component 4, so that the first gap 13 and the first isolation component 4 are adapted to each other, the isolation effect of the first isolation component 4 on the two adjacent chambers 11 is further ensured. In the embodiment of the present application, as Figure 1 As shown, the first direction is Figure 1 The direction indicated by X in the middle, the second direction is as Figure 1 The direction indicated by Y in the figure. It should be noted that the X-axis and the Y-axis intersect. For ease of explanation, the first direction is defined as the X-axis (i.e., the extension direction of the beam in the embodiment of the present invention), and the second direction is defined as the Y-axis. Further, the definition of vertical in the specification should be understood as vertical within a 90-degree deviation of 10%. That is, in some embodiments, the first direction and the second direction can be perpendicular to each other.

[0069] The specific implementation of providing the first isolation component 4 at the first notch 12 may be: in some embodiments, the first isolation component 4 includes an isolation frame 41 including a first insulating member 411 and a second insulating member 412; the first insulating member 411 is connected at the first notch 12, the first insulating member 411 and the second insulating member 412 are connected to form an isolation inner cavity 413, and the first conductive member is installed in the isolation inner cavity 413.

[0070] This embodiment is a structure of a first isolation component 4 provided between two adjacent chambers 11 arranged longitudinally (arranged along the first direction). The first insulating member 411 and the second insulating member 412 are both frame-shaped structures. The first insulating member 411 is used to connect to the tray 1, and the second insulating member 412 is used to form a frame structure for blocking the first notch 12. Specifically, the first insulating member 411 is connected to the first notch 12. The first insulating member 411 can be connected to the beam 16 corresponding to the first notch 12 by means of threaded connection, clamping, riveting, etc., and then the second insulating member 412 and the first insulating member 411 are connected to form an isolation inner cavity 413, which is used to install the first conductive member 43 and the first sealing body 42 in the isolation inner cavity 413. In this way, the insulation between the first conductive member 43 and the tray 1 can be ensured by the first insulating member 411 and the second insulating member 412. In addition, the second insulating member 412 may include a plurality of isolated inner cavities 413 sealed cavities 4122, that is, the isolated inner cavities 413 are isolated by baffles, so that the first sealing body 42 can be filled in each isolated inner cavity 413, so that the strength of the skeleton structure formed by the second insulating member 412 between two adjacent first sealing bodies 42 can be improved to enhance the overall strength of the first isolation component 4.

[0071] In some embodiments, the first insulating member 411 includes a snap-fit ​​structure 4111. The snap-fit ​​structure 4111 forms a snap-fit ​​groove, and the crossbeam 16 at the first notch 12 is at least partially snap-fitted into the snap-fit ​​groove.

[0072] In this embodiment, the first insulating member 411 includes a snap-fit ​​structure 4111 that may include a first snap-fit ​​plate, a second snap-fit ​​plate, and a top plate. The first snap-fit ​​plate and the second snap-fit ​​plate are spaced apart along a first direction, and the top plate is connected between the ends of the first snap-fit ​​plate and the ends of the second snap-fit ​​plate, so that the first snap-fit ​​plate, the second snap-fit ​​plate, and the top plate form an "inverted U"-shaped structure, thereby forming a snap-fit ​​groove between the first snap-fit ​​plate, the second snap-fit ​​plate, and the top plate. In this way, the crossbeam 16 at the first notch 12 can be at least partially snap-fitted into the snap-fit ​​groove, i.e., the first snap-fit ​​plate is attached to one side of the crossbeam 16 at the first notch 12, and the second snap-fit ​​plate is attached to the other side of the crossbeam 16 at the first notch 12, so that the snap-fit ​​structure 4111 at least covers a portion of the crossbeam 16 at the first notch 12. This not only facilitates the installation between the first insulating member 411 and the crossbeam 16, but also improves the strength of the first notch 12 through the first insulating member 411, and provides sufficient space for the installation of the second insulating member 412 through the first insulating member 411.

[0073] In some embodiments, the first insulating member 411 further includes a connecting structure 4112 . The connecting structure 4112 is disposed on an end surface of the snap-fit ​​structure 4111 away from the first notch 12 . The connecting structure 4112 and the first conductive member 43 are detachably connected.

[0074] In this embodiment, a connecting structure 4112 can be set on the top of the snap-fit ​​structure 4111. The connecting structure 4112 can be a raised structure, a snap-fit ​​structure or other forms of structure, so as to provide an installation point and a positioning point for the connection of the first conductive member 43, thereby facilitating the overall assembly of the first isolation component 4 and improving the preparation efficiency of the battery pack.

[0075] In some embodiments, the connection structure 4112 includes at least one first buckle 41121 , and the first conductive member 43 includes at least one first slot 431 . The first buckle 41121 is snapped into the first slot 431 .

[0076] In this embodiment, since the connecting structure 4112 includes at least one first clip 41121, the first conductive part 43 includes at least one first slot 431, and the first slot 431 is clipped into the first clip 41121, when assembling the first conductive part 43 and the first insulating part 411, it is only necessary to clip the first slot 431 into the first clip 41121 to realize the assembly of the first conductive part 43 and the first insulating part 411, which makes the assembly of the first isolation component as a whole more convenient.

[0077] In addition, in some embodiments, a first protrusion structure and a second protrusion structure can be formed on the surface of the first conductive part 43 away from the snap-on structure 4111, the first connecting piece 2 and the second connecting piece 3 can be bent sheet structures, the first connecting piece 2 can have a first assembly hole, and the second connecting piece 3 can have a second assembly hole, the first protrusion structure is installed in the first assembly hole, and the second protrusion structure is installed in the second assembly hole, thereby increasing the electrical connection area between the first connecting piece 2 and the first conductive part 43, and increasing the electrical connection area between the second connecting piece 3 and the first conductive part 43, thereby ensuring the electrical connection stability between the first electrical component and the second electrical component.

[0078] In some embodiments, the connection structure 4112 further includes a positioning member 41122 , the first conductive member 43 includes a positioning hole 432 , and the positioning member 41122 is inserted into the positioning hole 432 .

[0079] In this embodiment, the positioning member 41122 can be a positioning pin, a positioning column, a positioning block or other structures, and the hole shape of the positioning hole 432 is adapted to the structure of the positioning member 41122. In this way, by inserting the positioning member 41122 into the positioning hole 432, pre-positioning can be achieved when the first conductive member 43 and the first insulating member 411 are assembled, which facilitates the insertion of the first clip 41121 into the first slot 431.

[0080] In some embodiments, the connecting structure 4112 includes a first isolation sheet 41123 and a second isolation sheet 41124 arranged relative to each other; the first isolation sheet 41123 and the second isolation sheet 41124 both extend in a direction away from the snap-on 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 beam 16 and the first conductive member 43, and the second isolation sheet 41124 is located between the frame 15 and the first conductive member 43.

[0081] In this embodiment, the first isolation sheet 41123 and the second isolation sheet 41124 can extend in a direction away from the snap-fit ​​structure 4111, so that an accommodation space is formed between the first isolation sheet 41123, the second isolation sheet 41124 and the top plate for accommodating 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 crossbeam 16 and the first conductive member 43, and the second isolation sheet 41124 is located between the frame 15 and the first conductive member 43. The first isolation sheet 41123 and the second isolation sheet 41124 ensure that the first conductive member 43 and the tray 1 are in a completely insulated state.

[0082] In some embodiments, a second card slot 411231 is provided on the first isolation sheet 41123 and the second isolation sheet 41124; a second clip 4121 is provided on both ends of the second insulating member 412 in the first direction, and the second clip 4121 is clipped into the second card slot 411231.

[0083] In this embodiment, the second latching groove 411231 can extend along the first direction, and the plane formed by the second latching groove 411231 intersects the second direction. The second latching buckle 4121 is a protruding structure provided on both ends of the second insulating member 412 in the first direction. Thus, the second latching buckle 4121 and the second latching groove 411231 engage to achieve a connection between the first insulating member 411 and the second insulating member 412, facilitating the connection between the first insulating member 411 and the second insulating member 412 and facilitating the formation of an integrated frame-shaped structure between the first insulating member 411 and the second insulating member 412.

[0084] In some embodiments, at least one connecting plate 41111 is further provided at the end of the clamping structure 4111 in the second direction; the connecting plate 41111 extends along the first direction, and the connecting plate 41111 is attached to the frame 15 .

[0085] In this embodiment, the connecting plate 41111 is a sheet-like structure that protrudes from the end of the clamping structure 4111 in the second direction. There can be one or two connecting plates 41111. Since the connecting plate 41111 is attached to the frame 15, a connection relationship can be established between the connecting plate 41111 and the frame 15, thereby making the installation of the first insulating member 411 more secure.

[0086] In addition to the first notch 12, in some embodiments, the tray 1 further includes a longitudinal beam 17, which extends along the first direction and is disposed in the inner cavity enclosed by the frame 15 and intersects with the cross beam 16 to form a plurality of chambers 11 in the tray 1. In the second direction, a second notch 13 is disposed between two adjacent chambers 11 near the frame 15. A second isolation assembly 5 is disposed at the second notch 13. The second isolation assembly 5 includes a third insulating member 51, an insulating bracket 52, a second conductive member 53, and a second sealing member 54. The third insulating member 51 is attached to the frame 15, and the insulating bracket 52 is connected to the second notch 13. One end of the insulating bracket 52 in the first direction is connected to the third insulating member 51, and the other end of the insulating bracket 52 in the first direction is connected to the longitudinal beam 17. The insulating bracket 52 forms an insulating inner cavity 523, and the second sealing member 54 fills the insulating inner cavity 523. The second conductive member 53 is disposed between the third insulating member 51 and the insulating bracket 52.

[0087] In this embodiment, since the distribution components installed in the distribution cavity need to be electrically connected to other external components, in order to facilitate wiring, the distribution cavity is usually set in the cavity 11 close to the frame 15, that is, the two adjacent cavities 11 close to the frame 15 in the second direction are the distribution cavity and the battery cell cavity. In other words, the second gap 13 is a gap set between the distribution cavity and the battery cell cavity.

[0088] It should be noted that the third insulating member 51 can be a plate-like structure, and the third insulating member 51 can be attached to the frame 15 by bonding, clamping, screwing, etc., so that the second conductive member 53 can be arranged between the third insulating member 51 and the insulating bracket 52, thereby achieving insulation between the second conductive member 53 and the frame 15. The insulating bracket 52 can be an integrated frame structure or a split frame structure. Since the insulating bracket 52 is connected to the second notch 13, and one end of the insulating bracket 52 in the first direction is connected to the third insulating member 51, and the other end of the insulating bracket 52 in the first direction is connected to the longitudinal beam 17, the insulating bracket 52 forms an insulating inner cavity 523, and the second sealing body 54 is filled in the insulating inner cavity, so the second notch 13 can be sealed by the insulating bracket 52, and the second sealing body 54 is used to prevent gas from flowing through the second notch 13 between adjacent chambers 11, further delaying or even preventing thermal diffusion of the battery pack.

[0089] Regarding the structure of the above-mentioned insulating bracket 52, in some embodiments, the insulating bracket 52 includes 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 an 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.

[0090] In this embodiment, the insulating bracket 52 is a split structure. The fourth insulating member 521 and the fifth insulating member 522 can be connected by a detachable connection method such as snapping, plugging, or screwing, thereby forming an insulating inner cavity 523 between the fourth insulating member 521 and the fifth insulating member 522, which can be filled with the second sealing body 42. The fourth insulating member 521 is then connected to the third insulating member 51, and the fifth insulating member 522 is connected to the longitudinal beam 17, thereby fixing the insulating bracket 52 between the tray 1 and the third insulating member 51.

[0091] Regarding the structure of the above-mentioned fourth insulating member 521 and the structure of the fifth insulating member 522, in some embodiments, the fourth insulating member 521 is a box structure, and the fifth insulating member 522 includes a connecting portion 5221 and a plug-in portion 5222; the connecting portion 5221 is a snap-fit ​​structure, which is snap-fitted to 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 interior of the longitudinal beam 17.

[0092] In this embodiment, the fourth insulating member 521 may include a box structure formed by two opposing insulating plates, with the second sealing body 42 located between them. Alternatively, the fourth insulating member 521 may include a box structure having three openings formed by two opposing insulating plates and an insulating side plate, with the second sealing body 42 located between them. Thus, the fifth insulating member 522 includes a connecting portion 5221 and an inserting portion 5222. The connecting portion 5221 is a snap-fit ​​structure that snaps onto the side of the fourth insulating member 521 away from the third insulating member 51, while the inserting portion 5222 is inserted into the interior of the longitudinal beam 17 structure. Therefore, while facilitating assembly, the fifth insulating member 522 can increase the number of connection points between the insulating bracket 52 and the longitudinal beam 17, making the assembly of the insulating bracket 52 more secure.

[0093] Furthermore, in some embodiments, a snap-in platform 511 is provided near the notch of the third insulating member 51, and a snap-in groove 512 is also provided on the third insulating member 51, and the snap-in groove 512 is located on the side of the snap-in platform 511 away from the notch; the fourth insulating member 521 is inserted into the snap-in groove 512, and the end of the fourth insulating member 521 facing the second notch 12 is inserted into the snap-in platform 511.

[0094] In this embodiment, the fourth insulating member 521 is inserted into the card-connecting groove 512, and the end of the fourth insulating member 521 facing the second notch 12 is inserted into the card-connecting platform 511, so that the third insulating member 51 and the fourth insulating member 521 are detachably connected. When the third insulating member 51 and the fourth insulating member 521 are assembled, the connection between the third insulating member 51 and the fourth insulating member 521 can be pre-positioned to ensure that the third insulating member 51 and the fourth insulating member 521 are connected, and after filling the second sealing body 42, the two adjacent chambers 11 can be completely isolated.

[0095] 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 surface of the fourth insulating member 521, and the second conductive sheet 534 is connected to the second side surface of the fourth insulating member 521; 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 passes through the gap between the fourth insulating member 521 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 surface and the second side surface are two surfaces of the fourth insulating member 521 opposite to each other in the second direction.

[0096] In this 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 passes through the gap between the fourth insulating member 521 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. Therefore, 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 member 51 and the fourth insulating member 521, thereby avoiding the first conductive row 531 and the second conductive row 532 from being electrically

[0097] A short circuit occurred during connection.

[0098] It can be seen from the above embodiments that in the embodiments of the present application, since the first electrical component and the second electrical component are respectively installed in 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 notch, the electrical connection between the first electrical component and the second electrical component in the two adjacent chambers can be achieved through the first connecting piece 2 and the second connecting piece 3. In addition, since the first isolation component 4 includes an isolation frame 41, a first sealing body 42 and a first conductive member 43, the isolation frame 41 is connected at the notch, the isolation frame 41 includes an isolation cavity 413, and the first sealing body 42 is filled in the isolation cavity 413, the chambers are independent of each other, and zoning control can be achieved when thermal runaway occurs. The first isolation component 4 can be used to isolate the gas in the chamber 11 where gas diffusion occurs, to prevent the gas from circulating between adjacent chambers 11 through the first notch, further delaying or even preventing thermal diffusion of the battery pack. In addition, the first connecting piece 2 and the second connecting piece 3 are connected to the first conductive part 43, and at least part of the first conductive part 43 is sealed and connected in the isolation cavity 413. Therefore, the stability of the electrical connection between the first electrical part and the second electrical part can be ensured by the first conductive part 43, and the short circuit between the first conductive part 43 and the tray 1 can be avoided by the setting of the first sealing body 42 in the isolation frame 41.

[0099] In addition, in the embodiment of the present application, since a first isolation component 4 is provided at the first notch 12 and a second isolation component 5 is provided at the second notch 13, different isolation components can be provided at different notches to make the notches and the isolation components match each other, further ensuring the isolation effect of the isolation component 4 on the two adjacent chambers 11.

[0100] Optionally, in an embodiment of the present application, an electrical device is provided, comprising the battery pack described in any of the aforementioned embodiments.

[0101] In the embodiments of the present application, the electrical equipment in the embodiments of the present application includes the battery pack described in any of the aforementioned embodiments, and thus also includes all the beneficial effects of the battery pack, and thus this embodiment is not further described here. The electrical equipment can be any device such as a vehicle, an energy storage cabinet, an aircraft, and a computer, and this embodiment of the present application does not limit this.

[0102] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0103] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A battery pack, characterized in that: The battery pack includes: The tray is provided with at least two adjacent chambers, with a gap formed between the two adjacent chambers; A first electrical component and a second electrical component are respectively installed in two adjacent chambers, 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; A first isolation component, the first isolation component includes an isolation frame, a first sealing body and a first conductive member, the isolation frame is connected at the notch, the isolation frame includes 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 to the first conductive member, and at least a portion of the first conductive member is sealed and connected in the isolation inner cavity.

2. The battery pack according to claim 1, wherein: The pallet includes a bottom plate, a frame, and a crossbeam; The frame is arranged at the four edges of the bottom plate, and the crossbeam is arranged in the inner cavity surrounded by the frame to form a plurality of chambers in the tray; In the first direction, a first gap is provided between two adjacent chambers, the first isolation assembly is provided at the first gap, the beam extends along the second direction, and the first direction and the second direction are two intersecting directions.

3. The battery pack according to claim 2, wherein: The isolation frame includes a first insulating member and a second insulating member; The first insulating member is connected at the first notch. The first insulating member and the second insulating member are connected to form the isolation inner cavity. The first conductive member is installed in the isolation inner cavity.

4. The battery pack according to claim 3, wherein: The first insulating member includes a clamping structure; The clamping structure forms a clamping groove, and the crossbeam at the first notch is at least partially clamped in the clamping groove. In the connecting groove.

5. The battery pack according to claim 4, characterized in that: The first insulating member further includes a connecting structure; The connecting structure is provided on an end surface of the clamping structure away from the first notch, and the connecting structure and the first conductive member are detachably connected.

6. The battery pack according to claim 5, characterized in that: The connection structure includes at least one first clip, the conductive block includes at least one first slot, and the first clip is clipped into the first slot.

7. The battery pack according to claim 5, characterized in that: The connecting structure includes a positioning member, the first conductive member includes a positioning hole, and the positioning member is inserted into the positioning hole.

8. The battery pack according to claim 5, characterized in that: The connecting structure includes a first isolation sheet and a second isolation sheet arranged opposite to each other; The first isolation sheet and the second isolation sheet both extend in a direction away from the snap-on structure, the first conductive member is detachably connected between the first isolation sheet and the second isolation sheet, the first isolation sheet is located between the beam and the conductive block, the second isolation sheet is located between the frame and the first conductive member, or the second isolation sheet is located between the frame and the first conductive member.

9. The battery pack according to claim 8, characterized in that: A second card slot is provided on each of the first isolation sheet and the second isolation sheet; Second buckles are provided on both ends of the second insulating member in the first direction, and the second buckles are engaged with the second clamping grooves.

10. The battery pack according to claim 5, characterized in that: The clamping structure is further provided with at least one connecting plate at the end portion in the second direction; The connecting plate extends along the first direction, and the connecting plate is attached to the frame.

11. The battery pack according to any one of claims 2 to 10, characterized in that: The tray further includes a longitudinal beam extending along the first direction and arranged in the inner cavity surrounded by the frame and intersecting with the cross beam to form a plurality of chambers in the tray; a second gap is provided between two adjacent chambers near the frame in the second direction; a second isolation assembly is provided at the second gap, and the second isolation assembly includes a third insulating member, an insulating bracket, a second conductive member, and a second sealing body; The third insulating member is attached to the frame, the insulating bracket is connected to the second notch, and one end of the insulating bracket in the first direction is connected to the third insulating member, and the other end of the insulating bracket in the first direction is connected to the longitudinal beam, the insulating bracket forms an insulating inner cavity, and the second sealing body is filled in the insulating inner cavity; The second conductive member is disposed between the third insulating member and the insulating support.

12. The battery pack according to claim 11, wherein: The insulating support includes a fourth insulating member and a fifth insulating member; The fourth insulating member and the fifth insulating member are detachably connected to form the insulating inner cavity. The fourth insulating member is connected to the third insulating member, and the fifth insulating member is connected to the longitudinal beam.

13. The battery pack according to claim 12, wherein: The fourth insulating member is a box structure, and the fifth insulating member includes a connecting portion and a plug-in portion; The connecting portion is a snap-fit ​​structure, the snap-fit ​​structure is snap-fitted to a side of the fourth insulating member away from the third insulating member, and the plug-in portion is plugged into the interior of the longitudinal beam.

14. The battery pack according to claim 12, wherein: The third insulating member is provided with a clamping platform at a position close to the second notch, and the third insulating member is further provided with a clamping slot, the clamping slot being located on a side of the clamping platform away from the second notch; The fourth insulating member is inserted into the card-connecting groove, and the end portion of the fourth insulating member facing the second notch is inserted into the card-connecting platform.

15. The battery pack according to claim 12, wherein: The second conductive member includes a first conductive row, a second conductive row, a first conductive sheet and a second conductive sheet, the first conductive sheet is connected to the first side surface of the fourth insulating member, and the second conductive sheet is connected to the second side surface of the fourth insulating member; The first conductive row and the second conductive row are arranged near the frame, one end of the first conductive row passes through the gap between the fourth insulating member and the third insulating member and is connected to the first conductive sheet, 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 member facing each other in the second direction.

16. An electrical device, characterized in that: The electrical device comprises the battery pack according to any one of claims 1 to 15.

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