Batteries and electrical equipment

Abstract

The present application provides a battery and an electrical device. The battery includes a battery pack, two end plates, two side limit portions and a heat insulation board assembly. The battery pack includes a plurality of battery cells. The two end plates are respectively arranged at the two ends of the battery pack along a first horizontal direction. The two side limit portions are respectively arranged at the two ends of the battery pack along a second horizontal direction. The second direction is perpendicular to the first direction. Each side limit portion is respectively connected to a corresponding end of the two end plates. The heat insulation board assembly includes a heat insulation board and a plurality of mounting brackets. The plurality of mounting brackets are respectively connected to the two ends of the heat insulation board along the first direction and between the two end plates to support the heat insulation board above the battery pack along a third vertical direction and to form a gap with the battery pack. The mounting bracket includes at least one through hole that penetrates the mounting bracket along the first direction to communicate with the gap. The electrical device includes the battery.

Description

Technical Field

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

[0002] The heat shield assembly of the battery usually includes a heat shield (such as a mica board) and a supporting and fixing member. The heat shield covers the top of the battery pack to prevent the hot gas from having an adverse effect on the peripheral components of the battery pack after the battery has thermal runaway, such as spraying through the battery pack cover. The supporting and fixing member is installed on the end plate and fixed to the heat shield by a connector (such as a plug-in component) to prevent the heat shield from shaking or making abnormal noises when the battery is impacted. After the battery of the related art is equipped with a heat shield assembly, it is easy to cause the exhaust channel on the end plate side to be blocked.

[0003] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Summary of the invention

[0004] The purpose of the present application is to provide a battery and an electrical device, aiming to solve the problem that the exhaust passage on the end plate side is easily blocked after the battery is provided with a heat insulation plate assembly.

[0005] A first aspect of the present application provides a battery, comprising: a battery pack, comprising a plurality of battery cells; two end plates, respectively arranged at the two ends of the battery pack along a first horizontal direction; two side limit portions, respectively arranged at the two ends of the battery pack along a second horizontal direction, the second direction being perpendicular to the first direction, each side limit portion being respectively connected to a corresponding end of the two end plates; and a heat insulation board assembly, comprising a heat insulation board and a plurality of mounting brackets, the plurality of mounting brackets being respectively connected to the two ends of the heat insulation board along the first direction and between the two end plates so as to support the heat insulation board above the battery pack along a third vertical direction and form a gap with the battery pack, the mounting bracket comprising at least one through hole penetrating the mounting bracket along the first direction to communicate with the gap.

[0006] In the battery provided in the present application, a plurality of mounting brackets are respectively connected to the two ends of the heat insulation plate along a first direction and between the two end plates to support the heat insulation plate above the battery pack along a vertical third direction and form a gap with the battery pack. The mounting bracket includes at least one through hole penetrating the mounting bracket along the first direction to communicate with the gap. On the basis of stably supporting the heat insulation plate on the end plate of the horizontal group and being located above the battery pack by the mounting bracket, at least one through hole of the mounting bracket forms at least a part of the side exhaust channel on the end plate side that is connected to the gap. When thermal runaway occurs in the battery cell, it is beneficial for the hot gas and particulate matter generated during the thermal runaway to be discharged from the gap through at least one through hole, thereby facilitating the improvement of the exhaust capacity of the battery cell when thermal runaway occurs, and preventing the failure of timely exhaust of hot gas and particulate matter after thermal runaway occurs in individual battery cells, which may cause thermal runaway in other battery cells, thereby improving the exhaust capacity and thermal safety reliability of the battery.

[0007] In the battery of some embodiments, the plurality of mounting brackets collectively include a plurality of through holes distributed along the second direction.

[0008] By making multiple mounting brackets jointly include multiple through holes distributed along the second direction, it is beneficial to increase the flow area of ​​the exhaust channel on the end plate side through the number of through holes, and it is also beneficial for the hot gas and particulate matter in the interval to be discharged from the end exhaust channel in time after thermal runaway of the battery cell occurs, thereby being more conducive to improving the exhaust capacity and thermal safety reliability of the battery.

[0009] In some embodiments of the battery, at least one end vent connected to the gap is formed between the mounting bracket and the insulation plate and / or the end plate; and / or at least one side vent connected to the gap is formed between the insulation plate and the side limit portion.

[0010] At least one end vent connected to the gap is formed between the mounting bracket and the insulation plate and / or the end plate, which is beneficial to increase the flow area of ​​the end exhaust channel on the end plate side by setting the end vent, and is beneficial for the hot gas and particulate matter in the gap to be discharged from the through hole and the end vent in time after thermal runaway of the battery cell occurs, thereby being more conducive to improving the exhaust capacity and thermal safety reliability of the battery.

[0011] At least one side vent connected to the gap is formed between the insulation plate and the side limit portion, which is beneficial to forming a side exhaust channel on the side of the side limit portion of the battery pack 2 by setting the side vent. After the battery cell has thermal runaway, the hot gas and particulate matter in the gap are discharged from the end exhaust channel and at least one side vent in time, thereby being more beneficial to improving the exhaust capacity and thermal safety reliability of the battery.

[0012] In the battery of some embodiments, a plurality of mounting brackets together with the heat insulation plate and / or the end plate form a plurality of vents distributed along the second direction.

[0013] Multiple mounting brackets together with the heat insulation plate and / or the end plate form multiple vents distributed along the second direction, which is beneficial to increase the flow area of ​​the end exhaust channel on the end plate side through the number of vents, and is beneficial for the hot gas and particulate matter in the interval to be discharged from the end exhaust channel in time after thermal runaway of the battery cell occurs, thereby being more beneficial to improving the exhaust capacity and thermal safety reliability of the battery.

[0014] In some embodiments of the battery, the battery also includes a CCS integrated busbar connecting multiple battery cells, the CCS integrated busbar includes an integrated busbar body arranged between the insulation plate and the battery pack and an output pole connected to the end of the integrated busbar body along the first direction, the output pole is connected to the top of the end plate corresponding to one end, and along the second direction, the output pole is staggered with at least one through hole.

[0015] When multiple battery cells of a battery pack are connected through a CCS integrated busbar, and the CCS integrated busbar includes an integrated busbar body and an output pole connected to the end of the integrated busbar body along a first direction, the output pole is staggered with at least one through hole, which is beneficial to prevent the output pole and its protective cover from blocking the through hole, and to keep at least one through hole unobstructed, thereby facilitating the discharge of hot gases and particulate matter generated during thermal runaway from the interval through at least one through hole, thereby improving the exhaust capacity and thermal safety reliability of the battery.

[0016] In some embodiments of the battery, the bottom end of the mounting bracket is lower than the bottom surface of the integrated busbar body; and / or the mounting bracket includes a avoidance portion for avoiding the output pole; and / or the mounting bracket includes a positioning structure for limiting the relative movement of the insulation board assembly relative to the CCS integrated busbar.

[0017] The bottom end of the mounting bracket is lower than the bottom surface of the integrated busbar body, which is beneficial for the mounting bracket structure itself to occupy as little space as possible in the interval between the heat insulation board and the integrated busbar body, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval from the end exhaust channel after thermal runaway of the battery cell occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery.

[0018] The mounting bracket comprises a relief portion for avoiding the output pole, which is beneficial for the installation of the output pole and its protective cover to be less affected by the arrangement of the mounting bracket.

[0019] The mounting bracket includes a positioning structure for limiting the relative movement of the insulation board assembly with respect to the CCS integrated busbar, which helps prevent position changes between the mounting bracket, the insulation board assembly and the battery pack, and helps the CCS integrated busbar and the insulation board to effectively maintain their respective functions.

[0020] The avoidance portion includes an avoidance recess, which is beneficial for the overall structure of the mounting bracket to be relatively less affected by the setting of the avoidance portion, and is beneficial for the mounting bracket to achieve a stronger supporting capacity.

[0021] The positioning structure includes blocking bars arranged at both ends of the mounting bracket along the second direction, which is conducive to using a simple structure to achieve limiting between the mounting bracket, the insulation board assembly and the battery pack.

[0022] In some embodiments of the battery, the top of the mounting bracket is detachably connected to the thermal insulation plate; and / or the bottom of the mounting bracket is detachably connected to the end plate.

[0023] The top of the mounting bracket is detachably connected to the insulation board and / or the bottom of the mounting bracket is detachably connected to the end plate, both of which are conducive to rapid disassembly and assembly of the insulation board assembly when a battery failure occurs, and facilitate smooth inspection and maintenance of the battery.

[0024] In some embodiments of the battery, the bottom of the mounting bracket is form-fitted with the top of the end plate.

[0025] The bottom of the mounting bracket is matched with the top shape of the end plate, which is beneficial for the structure of the mounting bracket itself to occupy as little space as possible in the interval between the heat insulation plate and the battery pack, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval from the end exhaust channel after thermal runaway of the battery cell, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery.

[0026] In the battery of some embodiments, the mounting bracket includes a plurality of mounting portions connected to each other and arranged along the second direction, each mounting portion is connected to the heat insulation board, and the at least one through hole includes a mounting portion through hole provided on the mounting portion.

[0027] The mounting bracket includes a plurality of mounting parts connected to the heat insulation board and arranged along the second direction, and at least one through hole includes a mounting part through hole provided on the mounting part, so that a single mounting bracket includes a plurality of through holes distributed along the second direction, which is beneficial for the hot gas and particulate matter in the interval to be discharged from the end exhaust channel in time after thermal runaway of the battery cell occurs, thereby being more beneficial for improving the exhaust capacity and thermal safety reliability of the battery. At the same time, the mounting bracket includes a plurality of mounting parts connected together, which is beneficial for the support stability of each mounting part, thereby being beneficial for improving the support stability of the heat insulation board. In addition, the plurality of mounting parts can be disassembled and assembled together with the end plate, which is beneficial for the rapid assembly and separation of the heat insulation board assembly and the end plate during battery maintenance.

[0028] In some embodiments of the battery, the mounting portion includes a mounting plate frame, the thickness direction of the frame wall of the mounting plate frame is perpendicular to the first direction, the top plate of the mounting plate frame is connected to the insulation board, and the hollow portion of the mounting plate frame forms at least one mounting portion through hole.

[0029] The mounting portion is arranged in the form of a mounting plate frame, which is beneficial for the structure of the mounting portion itself to occupy as little space as possible in the interval between the heat insulation plate and the battery pack, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval from the end exhaust channel after thermal runaway of the battery cell occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery.

[0030] In some embodiments of the battery, the mounting bracket includes a bracket base, a plurality of mounting parts are installed above the bracket base to be connected together through the bracket base, and the bottom of the bracket base matches the shape of the top of the end plate; or the mounting bracket includes a connecting part, the connecting part is connected between two adjacent mounting parts to connect the two adjacent mounting parts together, and the bottom formed by the mounting part and the connecting part matches the shape of the top of the end plate.

[0031] By installing and connecting multiple mounting parts on the bracket base, and matching the bottom of the bracket base with the top of the end plate, it is beneficial to achieve the overall structural stability of the mounting bracket, thereby improving the support stability of the heat insulation board. In addition, structures other than the multiple mounting parts of the mounting bracket, such as the matching part with the end plate and the avoidance part of the output pole, can be set on the mounting bracket, which is beneficial to the accurate matching of the mounting bracket with other related components, and at the same time, the structural setting of a large number of mounting parts is relatively simple and unified.

[0032] The connecting part is connected to two adjacent mounting parts, and the bottom formed by the mounting part and the connecting part cooperates with the top shape of the end plate, which is conducive to designing the through hole of the mounting part to have a larger flow area, so that the hot air flow and particulate matter flowing through the through hole of the mounting part can flow more smoothly.

[0033] In some embodiments of the battery, at least one end vent connected to the gap is formed between the mounting bracket and the insulation board, wherein the at least one end vent includes at least one base top vent formed between the top of the bracket base and the insulation board; or the at least one end vent includes at least one connection part top vent formed between the top of the connection part and the insulation board.

[0034] At least one end vent includes at least one base top vent formed between the top of the bracket base and the insulation board. The bracket base can be reasonably designed so that the end exhaust channel has at least one base top vent, thereby having a larger flow area, which is conducive to the timely discharge of hot gases and particulate matter from the interval.

[0035] At least one end vent includes at least one connection top vent formed between the top of the connection part and the insulation board. The connection part 523 can be reasonably designed so that the end exhaust channel has at least one connection top vent, thereby having a larger flow area, which is conducive to the timely discharge of hot gases and particulate matter from the gap.

[0036] In the battery of some embodiments, at least one through hole includes a connecting portion through hole provided on the connecting portion; and / or the connecting portion includes a connecting rod connected between two adjacent mounting portions.

[0037] At least one through hole includes a connecting portion through hole arranged on the connecting portion. The connecting portion can be reasonably designed so that the end exhaust channel has a connecting portion through hole, thereby having a larger flow area, which is beneficial for hot gas and particulate matter to be discharged from the gap in time, thereby being more conducive to improving the exhaust capacity and thermal safety reliability of the battery.

[0038] The connecting part includes a connecting rod connected between two adjacent mounting parts, so that the structure of the connecting part itself occupies as little space as possible in the interval between the insulation board and the battery pack, thereby facilitating the increase of the flow area of ​​the end exhaust channel, facilitating the timely discharge of hot gas and particulate matter in the interval from the end exhaust channel, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery.

[0039] In some embodiments of the battery, the connection portion includes a connection plate frame connected between two adjacent mounting portions, the thickness direction of the frame wall of the connection plate frame is perpendicular to the first direction, and the hollow portion of the connection plate frame forms at least one connection portion through hole.

[0040] The connecting portion is configured as a connecting plate frame connected between two adjacent mounting portions, which is beneficial for the structure of the connecting portion itself to occupy as little space as possible in the interval between the heat insulation plate and the battery pack, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval from the end exhaust channel after thermal runaway of the battery cell occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery.

[0041] A second aspect of the present application provides an electrical device, comprising the battery of the first aspect of the present application, and the battery is used to provide power to the electrical device.

[0042] The electrical equipment provided by the present application has the advantages of the battery of the present application.

[0043] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0045] Figure 1 This is a schematic diagram of the structure of electrical equipment in some embodiments of the present application.

[0046] Figure 2 A schematic diagram of a battery structure in the form of a battery pack provided in some embodiments of the present application.

[0047] Figure 3 A schematic diagram of the structure of a battery module of a battery pack provided in some embodiments of the present application.

[0048] Figure 4 for Figure 3 A schematic diagram of the side structure of a battery module of a battery pack of the illustrated embodiment.

[0049] Figure 5 for Figure 3 A schematic diagram of the front (end) structure of a battery module of a battery pack of the illustrated embodiment.

[0050] Figure 6 for Figure 3 A schematic structural diagram of a heat insulation plate assembly of a battery module of a battery pack of the illustrated embodiment.

[0051] Figure 7 A schematic diagram of the structure of a battery module of a battery pack provided in some embodiments of the present application.

[0052] Figure 8 for Figure 7 A schematic structural diagram of a heat insulation plate assembly of a battery module of a battery pack of the illustrated embodiment.

[0053] Figures 1 to 8 In the figure, each reference numeral represents:

[0054] D. Electrical equipment;

[0055] B. Battery;

[0056] P, battery pack;

[0057] 1. Box body; 11. Bottom shell;

[0058] M. Battery module;

[0059] 2. Battery pack; 20. Battery cell;

[0060] 3. End plate;

[0061] 4. Side limiter;

[0062] 5. Insulation board assembly; 51. Insulation board; 52. Mounting bracket; 52A. Through hole; 52B. Avoidance portion; 521. Mounting portion; 521A. Through hole of mounting portion; 5211. Mounting plate frame; 522. Bracket base; 523. Connecting portion; 523A. Through hole of connecting portion; 5231. Connecting rod; 5232. Connecting plate frame; 525. Stop bar; 53. Latch;

[0063] 6. CCS integrated busbar; 61. Integrated busbar body; 62. Output pole;

[0064] G. Interval;

[0065] V1, end vent; V11, top vent of base; V12, top vent of connection;

[0066] V2, side vent;

[0067] X, first direction;

[0068] Y, second direction;

[0069] Z. Third direction. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0071] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0072] In the description of the present application, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present application.

[0073] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0074] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0075] In the process of forming this application, the inventor discovered that when the supporting and fixing member of the heat insulation board assembly of the related art is fixed on the end plate, a groove is usually machined in the thickness direction of the end plate, and the lower part of the supporting and fixing member is inserted into the groove to fix the supporting and fixing member, and the upper part of the supporting and fixing member is connected and fixed to the heat insulation board through a plug-in component. In this heat insulation board assembly, the exhaust passage between the end plate and the heat insulation board is easily blocked by the combined action of the supporting and fixing member and the protective cover of the output pole above the end plate. When the particles after the thermal runaway of the battery cell will accumulate in the supporting and fixing member and the protective cover of the output pole, it may cause additional secondary disasters and trigger thermal runaway of the battery.

[0076] Therefore, the present application proposes a battery, the battery includes a heat shield assembly, and the heat shield assembly of the heat shield assembly forms an end exhaust channel including a through hole on the mounting bracket on the end plate side by reasonably setting the mounting bracket of the heat shield assembly, which is conducive to solving the problem that the exhaust channel on the end plate side is easily blocked after the battery is provided with the heat shield assembly. Furthermore, the present application also proposes an electrical device including the battery.

[0077] The battery is configured to provide electrical energy to electrical devices. Electrical devices may be, but are not limited to, mobile phones, portable devices, laptop computers, battery vehicles, electric vehicles, ships, spacecraft, electric toys, and electric tools, etc. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Electric tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0078] The battery referred to in this application may be in the form of a battery pack or a battery module.

[0079] A battery module generally includes a battery pack formed by a plurality of battery cells, which are packaged together by a frame. The frame includes, for example, two end plates located at both ends of the battery cells and two side limiters located at both sides of the battery pack and connected to the two end plates. The side limiters include, for example, side plates or side connecting beams.

[0080] A battery pack is a single physical module that includes one or more battery cells to provide higher voltage and capacity. A battery pack generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0081] A battery cell refers to the smallest unit that makes up a battery. In the present application, battery cells may include lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present application. Battery cells may be flat, rectangular, or in other shapes, which are not limited in the embodiments of the present application. Battery cells are generally packaged as square battery cells and soft-pack battery cells, which are not limited in the embodiments of the present application.

[0082] The battery cell mainly includes a battery cell, a shell and an end cap assembly. The battery cell is encapsulated in the housing space of the shell through the end cap of the end cap assembly, and the housing space is filled with electrolyte. The electrode assembly of the battery cell is the component where the electrochemical reaction occurs in the battery cell. The shell is a component used to provide a housing space to accommodate the electrode assembly, electrolyte and other components. The end cap assembly includes an end cap and an electrode terminal and an explosion-proof valve arranged on the end cap. The end cap is covered at the opening of the shell to isolate the internal environment of the battery cell from the external environment. The electrode terminal can be used to electrically connect to the electrode assembly of the battery cell for outputting or inputting electrical energy of the battery cell. The explosion-proof valve can be installed at the pressure relief hole on the end cap to release the internal pressure when the internal pressure or temperature of the battery cell reaches a threshold, that is, when thermal runaway occurs.

[0083] After the explosion-proof valve is opened, hot gas will be ejected from the inside of the battery cell. The ejected hot gas will often produce particulate matter when it acts on the surrounding components. In order to prevent the hot gas from spraying through more components above the end cover, a heat insulation board assembly is set above the end cover.

[0084] In the description of this application, the first direction X is a horizontal direction, and the first direction X corresponds to Figure 3 , Figures 6 to 8 The front-to-back direction in Figure 4 The second direction Y is a horizontal direction perpendicular to the first direction X, and the second direction Y corresponds to Figure 3 , Figures 6 to 8 The left and right directions in Figure 5The third direction Z is the vertical direction, corresponding to Figures 3 to 8 The up and down directions also correspond to the height directions of the battery pack and battery module.

[0085] like Figures 1 to 8 As shown, the battery B provided in the embodiment of the present application includes a battery pack 2, two end plates 3, two side limit portions 4 and a heat insulation plate assembly 5.

[0086] The battery pack 2 includes a plurality of battery cells 20. Two end plates 3 are respectively disposed at the two ends of the battery pack 2 along a first horizontal direction X. Two side limit portions 4 are respectively disposed at the two ends of the battery pack 2 along a second horizontal direction Y. The second direction Y is perpendicular to the first direction X. Each side limit portion 4 is respectively connected to a corresponding end of the two end plates 3. The heat insulation board assembly 5 includes a heat insulation board 51 and a plurality of mounting brackets 52. The plurality of mounting brackets 52 are respectively connected between the two ends of the heat insulation board 51 along the first direction X and the two end plates 3 to support the heat insulation board 51 above the battery pack 2 along a third vertical direction Z and to form a gap G with the battery pack 2. The mounting bracket 52 includes at least one through hole 52A that penetrates the mounting bracket 52 along the first direction X to communicate with the gap G.

[0087] In the battery B provided in the present application, a plurality of mounting brackets 52 are respectively connected to the two ends of the heat insulation board 51 along the first direction X and between the two end plates 3, so as to support the heat insulation board 51 above the battery pack 2 along the vertical third direction Z and form a gap G with the battery pack 2. The mounting bracket 52 includes at least one through hole 52A penetrating the mounting bracket 52 along the first direction X to communicate with the gap G. On the basis of stably supporting the heat insulation board 51 on the end plate and being located above the battery pack 2 by the mounting bracket 52, the at least one through hole 52A of the mounting bracket 52 forms at least a part of the side exhaust channel on the end plate side communicating with the gap G. When the battery cell 20 has thermal runaway, it is beneficial for the hot gas and particulate matter generated during the thermal runaway to be discharged from the gap G through the at least one through hole 52A, thereby facilitating the improvement of the exhaust capacity of the battery cell 20 when the thermal runaway occurs, and preventing the thermal runaway of other battery cells 20 caused by the failure to timely discharge the hot gas and particulate matter after the thermal runaway of individual battery cells 20, thereby improving the exhaust capacity and thermal safety reliability of the battery.

[0088] The material of the heat insulation board 51 can be a high temperature resistant material with a certain strength, for example, in the embodiment of the present application, a mica board is used as the heat insulation board 51. In an embodiment not shown in the figure, the heat insulation board 51 can also be made of other materials, such as a material with a ceramic coating.

[0089] After the hot gas and particulate matter leave the gap G from the end exhaust channel, they can be output to the outside of the battery B through the guide flow channel connected to the end exhaust channel.

[0090] like Figure 3 , Figures 5 to 8 As shown, in the battery B of some embodiments, the plurality of mounting brackets 52 collectively include a plurality of through holes 52A distributed along the second direction Y.

[0091] By making the multiple mounting brackets 52 jointly include multiple through holes 52A distributed along the second direction Y, it is beneficial to increase the flow area of ​​the exhaust channel on the end plate side through the number of through holes 52A, and it is also beneficial for the hot gas and particulate matter in the interval G to be discharged from the end exhaust channel in time after the battery cell 20 has thermal runaway, thereby being more conducive to improving the exhaust capacity and thermal safety reliability of the battery B.

[0092] like Figures 3 to 8 As shown, in some embodiments of the battery B, at least one end vent V1 connected to the gap G is formed between the mounting bracket 52 and the insulation plate 51 and / or the end plate 3; and / or at least one side vent V2 connected to the gap G is formed between the insulation plate 51 and the side limit portion 4.

[0093] At least one end vent V1 connected to the gap G is formed between the mounting bracket 52 and the insulation plate 51 and / or the end plate 3, which is beneficial for increasing the flow area of ​​the end exhaust channel on the end plate side by setting the end vent V1, and is beneficial for the hot gas and particulate matter in the gap G to be discharged from the through hole 52A and the end vent V1 in time after the battery cell 20 has thermal runaway, thereby being more beneficial for improving the exhaust capacity and thermal safety reliability of the battery B.

[0094] At least one side vent V2 connected to the gap G is formed between the insulation plate 51 and the side limit portion 4, which is beneficial to forming a side exhaust channel on the side of the side limit portion 4 of the battery pack 2 by setting the side vent V2. After the battery cell 20 has thermal runaway, the hot gas and particulate matter in the gap G are discharged in time from the end exhaust channel and at least one side vent V2, which is more beneficial to improving the exhaust capacity and thermal safety reliability of the battery B.

[0095] like Figure 3 , Figures 5 to 8 As shown, in the battery B of some embodiments, a plurality of mounting brackets 52 together with the heat insulation plate 51 and / or the end plate 3 form a plurality of end vents V1 distributed along the second direction Y.

[0096] The multiple mounting brackets 52 together with the heat insulation plate 51 and / or the end plate 3 form a plurality of end vents V1 distributed along the second direction Y, which is beneficial to increase the flow area of ​​the end exhaust channel on the end plate side through the number of end vents V1, and is beneficial for the hot gas and particulate matter in the interval G to be discharged from the end exhaust channel in time after thermal runaway of the battery cell 20 occurs, thereby being more beneficial to improving the exhaust capacity and thermal safety reliability of the battery B.

[0097] like Figures 3 to 5 and Figure 7 As shown, in some embodiments of the battery B, the battery B also includes a CCS integrated busbar 6 connecting multiple battery cells 20, and the CCS integrated busbar 6 includes an integrated busbar body 61 arranged between the insulation plate 51 and the battery pack 2 and an output pole 62 connected to the end of the integrated busbar body 61 along the first direction X, the output pole 62 is connected to the top of the end plate 3 corresponding to one end, and along the second direction Y, the output pole 62 is staggered with at least one through hole 52A.

[0098] When multiple battery cells 20 of the battery pack 2 are connected through the CCS integrated busbar 6, and the CCS integrated busbar 6 includes an integrated busbar body 61 and an output pole 62 connected to the end of the integrated busbar body 61 along the first direction X, the output pole 62 is staggered with at least one through hole 52A, which is beneficial to prevent the output pole 62 and its protective cover from blocking the through hole 52A, and to keep at least one through hole 52A unobstructed, so as to facilitate the discharge of hot gases and particulate matter generated during thermal runaway from the gap G through at least one through hole 52A, thereby improving the exhaust capacity and thermal safety reliability of the battery B.

[0099] like Figures 3 to 5 and Figure 7 As shown, in some embodiments of the battery B, the bottom end of the mounting bracket 52 is lower than the bottom surface of the integrated busbar body 61; and / or the mounting bracket 52 includes a avoidance portion 52B for avoiding the output pole 62; and / or the mounting bracket 52 includes a positioning structure for limiting the relative movement of the insulation board assembly 5 relative to the CCS integrated busbar 6.

[0100] The bottom end of the mounting bracket 52 is lower than the bottom surface of the integrated busbar body 61, which is beneficial for the mounting bracket 52 itself to occupy as little space as possible between the insulation board 51 and the integrated busbar body 61, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval G from the end exhaust channel after thermal runaway of the battery cell 20 occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery B.

[0101] The mounting bracket 52 includes a relief portion 52B for evading the output pole 62 , which facilitates the installation of the output pole 62 and its protective cover to be less affected by the arrangement of the mounting bracket 52 .

[0102] like Figures 3 to 8 As shown, the avoidance portion 52B includes, for example, an avoidance recess. The avoidance recess is conducive to the overall structure of the mounting bracket 52 being relatively less affected by the setting of the avoidance portion 52B, and is conducive to the mounting bracket 52 achieving a stronger supporting capacity.

[0103] The mounting bracket 52 includes a positioning structure for limiting the relative movement of the insulation board assembly 5 with respect to the CCS integrated busbar 6, which helps prevent position changes between the mounting bracket 52, the insulation board assembly 5 and the battery pack 2, and helps the CCS integrated busbar 6 and the insulation board 51 to effectively maintain their respective functions.

[0104] The positioning structure includes, for example, stop bars 525 disposed at both ends of the mounting bracket 52 along the second direction Y. The positioning structure is in the form of stop bars 525, which facilitates the use of a simple structure to achieve the limiting between the mounting bracket 52, the heat shield assembly 5 and the battery pack 2.

[0105] In some embodiments of the battery B, the top of the mounting bracket 52 is detachably connected to the thermal insulation plate 51 ; and / or the bottom of the mounting bracket 52 is detachably connected to the end plate 3 .

[0106] The top of the mounting bracket 52 is detachably connected to the insulation plate 51 and / or the bottom of the mounting bracket 52 is detachably connected to the end plate 3, both of which are conducive to the rapid disassembly and assembly of the insulation plate assembly 5 when a failure occurs in the battery B, and facilitate the smooth inspection and maintenance of the battery B.

[0107] For example, Figures 3 to 8 As shown, the top of the mounting bracket 52 can be connected to the heat insulation board 51 by a latch 53 and / or a threaded connector. For another example, the bottom of the mounting bracket 52 can be connected to the end plate 3 by a latch connection and / or a threaded connector and / or by a form-fitting snap connection.

[0108] like Figures 3 to 5 and Figure 7 As shown, in the battery B of some embodiments, the bottom of the mounting bracket 52 is matched with the top of the end plate 3 in shape.

[0109] The bottom of the mounting bracket 52 is matched with the top shape of the end plate 3, which is beneficial for the structure of the mounting bracket 52 itself to occupy as little space as possible between the insulation plate 51 and the battery pack 2, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval G from the end exhaust channel after thermal runaway of the battery cell 20 occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery B.

[0110] like Figures 3 to 8 As shown, in some embodiments of the battery B, the mounting bracket 52 includes a plurality of mounting portions 521 connected to each other and arranged along the second direction Y, each mounting portion 521 is connected to the heat insulation plate 51, and at least one through hole 52A includes a mounting portion through hole 521A provided on the mounting portion 521.

[0111] The mounting bracket 52 includes a plurality of mounting portions 521 connected to the heat insulation board 51 and arranged along the second direction Y, and at least one through hole 52A includes a mounting portion through hole 521A provided on the mounting portion 521. The single mounting bracket 52 includes a plurality of through holes 52A distributed along the second direction Y, which is beneficial for the hot gas and particulate matter in the interval G to be discharged from the end exhaust channel in time after the thermal runaway of the battery cell 20 occurs, thereby being more beneficial for improving the exhaust capacity and thermal safety reliability of the battery B. At the same time, the mounting bracket 52 includes a plurality of mounting portions 521 connected together, which is beneficial for the support stability of each mounting portion 521, thereby being beneficial for improving the support stability of the heat insulation board 51. In addition, the plurality of mounting portions 521 can be disassembled and assembled together with the end plate 3, which is beneficial for the rapid assembly and separation of the heat insulation board assembly 5 and the end plate 3 during the maintenance of the battery B.

[0112] For example, in the battery B of some embodiments, at least one end of the heat insulation plate 51 along the first direction X is connected to the corresponding end plate 3 by only one mounting bracket 52 .

[0113] like Figures 3 to 8 As shown, in some embodiments of the battery B, the mounting portion 521 includes a mounting plate frame 5211, the thickness direction of the frame wall of the mounting plate frame 5211 is perpendicular to the first direction X, the top plate of the mounting plate frame 5211 is connected to the insulation board 51, and the hollow portion of the mounting plate frame 5211 forms at least one mounting portion through hole 521A.

[0114] Setting the mounting portion 521 in the form of a mounting plate frame 5211 is beneficial for the structure of the mounting portion 521 itself to occupy as little space as possible in the interval between the heat insulation plate 51 and the battery pack 2, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval G from the end exhaust channel after thermal runaway of the battery cell 20 occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery B.

[0115] like Figures 3 to 6 As shown, in some embodiments of the battery B, the mounting bracket 52 includes a bracket base 522, a plurality of mounting portions 521 are mounted above the bracket base 522 to be connected together through the bracket base 522, and the bottom of the bracket base 522 is matched with the top of the end plate 3 in shape. Figures 7 and 8 As shown, in some embodiments of the battery B, the mounting bracket 52 includes a connecting portion 523, which is connected between two adjacent mounting portions 521 to connect the two adjacent mounting portions 521 together, and the bottom formed by the mounting portion 521 and the connecting portion 523 is matched with the top shape of the end plate 3.

[0116] By installing and connecting multiple mounting parts 521 through the bracket base 522, and matching the bottom of the bracket base 522 with the top shape of the end plate 3, it is beneficial to achieve the overall structural stability of the mounting bracket 52, thereby improving the support stability of the heat insulation board 51. In addition, structures other than the multiple mounting parts 521 of the mounting bracket 52, such as the matching part with the end plate 3, the avoidance part 52B for avoiding the output pole 62, etc., can be set on the mounting bracket 52, which is beneficial to the accurate matching of the mounting bracket 52 with other related components, and at the same time, the structural setting of a large number of mounting parts 521 is relatively simple and unified.

[0117] The connecting portion 523 is connected to two adjacent mounting portions 521, and the bottom formed by the mounting portion 521 and the connecting portion 523 cooperates with the top shape of the end plate 3, which is conducive to designing the mounting portion through hole 521A to have a larger flow area, so that the hot air flow and particulate matter flowing through the mounting portion through hole 521A can flow more smoothly.

[0118] like Figures 3 to 6 As shown, in some embodiments of the battery B, at least one end vent V1 communicating with the gap G is formed between the mounting bracket 52 and the heat insulating plate 51, wherein the at least one end vent V1 includes at least one base top vent V11 formed between the top of the bracket base 522 and the heat insulating plate 51. Alternatively, as Figures 7 and 8 As shown, in the battery B of some embodiments, the at least one end vent V1 includes at least one connection portion top vent V12 formed between the top of the connection portion 523 and the heat insulation board 51 .

[0119] At least one end vent V1 includes at least one base top vent V11 formed between the top of the bracket base 522 and the insulation board 51. The bracket base 522 can be reasonably designed so that the end exhaust channel has at least one base top vent V11, thereby having a larger flow area, which is conducive to the timely discharge of hot gases and particulate matter from the gap G.

[0120] At least one end vent V1 includes at least one connection top vent V12 formed between the top of the connection part 523 and the insulation board 51. The connection part 523 can be reasonably designed so that the end exhaust channel has at least one connection top vent V12, thereby having a larger flow area, which is conducive to the timely discharge of hot gases and particulate matter from the gap G.

[0121] like Figure 7 and Figure 8 As shown, in some embodiments of the battery B, at least one through hole 52A includes a connecting portion through hole 523A disposed on the connecting portion 523; and / or the connecting portion 523 includes a connecting rod 5231 connected between two adjacent mounting portions 521.

[0122] At least one through hole 52A includes a connecting portion through hole 523A arranged on the connecting portion 523. By reasonably designing the connecting portion 523, the end exhaust channel can have a connecting portion through hole 523A, thereby having a larger flow area, which is beneficial for hot gas and particulate matter to be discharged from the gap G in time, thereby being more conducive to improving the exhaust capacity and thermal safety reliability of the battery B.

[0123] The connecting portion 523 includes a connecting rod 5231 connected between two adjacent mounting portions 521, so that the structure of the connecting portion 523 itself occupies as little space as possible in the interval between the heat insulation plate 51 and the battery pack 2, thereby facilitating the increase of the flow area of ​​the end exhaust channel, facilitating the timely discharge of hot gas and particulate matter in the interval G from the end exhaust channel, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery B.

[0124] like Figures 7 and 8 As shown, in some embodiments of the battery B, the connecting portion 523 includes a connecting plate frame 5232 connected between two adjacent mounting portions 521, the thickness direction of the frame wall of the connecting plate frame 5232 is perpendicular to the first direction X, and the hollow portion of the connecting plate frame 5232 forms at least one connecting portion through hole 523A.

[0125] The connecting portion 523 is configured as a connecting plate frame 5232 connected between two adjacent mounting portions 521, which is beneficial for the structure of the connecting portion 523 itself to occupy as little space as possible in the interval between the heat insulation plate 51 and the battery pack 2, thereby facilitating the increase of the flow area of ​​the end exhaust channel, and facilitating the timely discharge of hot gas and particulate matter in the interval G from the end exhaust channel after thermal runaway of the battery cell 20 occurs, thereby further facilitating the improvement of the exhaust capacity and thermal safety reliability of the battery B.

[0126] The electric device D provided in the embodiment of the present application includes the battery B in the embodiment of the present application, and the battery B is used to provide power to the electric device D.

[0127] The electrical device D provided in the present application has the advantages of the battery B in the present application.

[0128] The following combination Figures 1 to 8 The battery B and the electrical device D of the embodiment of the present application are further described.

[0129] Please refer to Figure 1 . Figure 1 The schematic diagram of the structure of the electric device vehicle D provided in some embodiments of the present application. The vehicle D can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. Figure 2The vehicle D is provided with a battery B inside, and the battery B can be provided at the bottom, head or tail of the vehicle D. The battery B can be used for powering the vehicle D, for example, it can be used as an operating power source of the vehicle D.

[0130] In some embodiments of the present application, battery B can not only serve as an operating power source for vehicle D, but also serve as a driving power source for vehicle D, replacing or partially replacing fuel or natural gas to provide driving power for vehicle D.

[0131] In the embodiment of the present application, battery B is Figure 2 The battery pack P shown in FIG. 1 includes Figure 3 The battery module M shown. In some embodiments, the battery B may also be Figure 3 The battery module M shown.

[0132] Figure 2 A schematic diagram of the structure of a battery pack P provided in some embodiments of the present application. The battery pack P includes a box body 1 and a battery module M accommodated in the box body 1. The number of the battery module M can be one or more.

[0133] like Figure 2 As shown, the box body 1 includes a bottom shell 11 and a box cover 12 buckled on the bottom shell 11, and the box body 1 is used to provide a storage space for the battery cell 20. In the above embodiments, the box body 1 is a rectangular parallelepiped as a whole. In embodiments not shown in the figure, the box body 1 can also be other shapes, such as a cylinder. In some embodiments, the box body can be used as part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the crossbeam and longitudinal beam of the vehicle.

[0134] The battery module M includes a battery pack 2 , two end plates 3 , two side limit portions 4 , a heat insulation board assembly 5 and a CCS integrated busbar 6 . Figures 3 to 8 In FIG. 1 , only the structure of one end of the battery module M or the heat shield assembly 5 along the first direction X is shown. The structure of the other end of the battery module M along the first direction X may be the same as that of Figures 3 to 8 Same or different than shown in .

[0135] The battery pack 2 includes a plurality of battery cells 20 arranged side by side along a first direction X. The plurality of battery cells 20 of the battery pack 2 can be connected in series, in parallel, or in a mixed connection. The plurality of battery cells 20 can be directly connected in series, in parallel, or in a mixed connection, and then the battery pack 2 consisting of the plurality of battery cells 20 is accommodated in the box 1. Figures 3 to 8In the illustrated embodiment, the multiple battery cells 20 of the battery pack 2 are electrically connected via a CCS integrated busbar 6. The CCS (Cells Contact System) integrated busbar is mainly composed of signal acquisition components such as flexible circuit boards (FPCs), printed circuit boards (PCBs), plastic structural parts, copper and aluminum bars, etc., which are connected into a whole through processes such as hot pressing or riveting to achieve high-voltage series and parallel connection of multiple battery cells, as well as battery temperature sampling and battery cell voltage sampling functions, and provide temperature signals and voltage signals for transmission to the battery management system (BMS) through FPC / PCB and connector components.

[0136] The two end plates 3 are respectively disposed at two ends of the battery pack 2 along a first horizontal direction X.

[0137] The two side limit portions 4 are respectively disposed at two ends of the battery pack 2 along the second horizontal direction Y. Each side limit portion 4 is respectively connected to a corresponding end of the two end plates 3 . Figures 3 to 8 In the illustrated embodiment, the side limiting portion 4 is a side limiting plate.

[0138] The heat insulation board assembly 5 comprises a heat insulation board 51 and a plurality of mounting brackets 52. The heat insulation board 51 is a mica board.

[0139] A plurality of mounting brackets 52 are respectively connected to both ends of the heat insulating plate 51 along the first direction X and between the two end plates 3 to support the heat insulating plate 51 above the battery pack 2 along the vertical third direction Z and form a gap G with the battery pack 2. The mounting bracket 52 includes a plurality of through holes 52A that penetrate the mounting bracket 52 along the first direction X to communicate with the gap G. Figures 3 to 8 In the illustrated embodiment, the plurality of through holes 52A are distributed along the second direction Y.

[0140] like Figures 3 to 8 As shown, a plurality of end vents V1 communicating with the gap G are formed between a portion of the mounting bracket 52 along the second direction Y and the heat insulation board 51 .

[0141] The heat insulation board 51 is suspended at the side limiting portion, so that a side vent V2 communicating with the gap G is formed between the heat insulation board 51 and the side limiting portion 4 .

[0142] The CCS integrated busbar 6 includes an integrated busbar body 61 disposed between the heat shield 51 and the battery pack 2 and an output pole 62 connected to the end of the integrated busbar body 61 along the first direction X. The output pole 62 is connected to the top of the end plate 3 at the corresponding end. The output pole 62 is staggered with each through hole 52A along the second direction Y.

[0143] The bottom end of the mounting bracket 52 is lower than the bottom surface of the integrated busbar body 61. The mounting bracket 52 includes a relief portion 52B for relief of the output pole 62. Figures 3 to 8As shown, the escape portion 52B includes an escape recess. The exterior of the output pole 62 may be protected by a protective cover (not shown).

[0144] The mounting bracket 52 includes a positioning structure for limiting the relative movement of the heat insulation board assembly 5 relative to the CCS integrated busbar 6. The positioning structure includes blocking bars 525 arranged at both ends of the mounting bracket 52 along the second direction Y.

[0145] like Figures 3 to 8 As shown, the top of the mounting bracket 52 and the heat insulation board 51 can be connected by a latch 53. The portion of the heat insulation board 51 located above the mounting bracket 52 is a lug protruding outward relative to the remaining portion, and the lug is provided with a long hole extending along the first direction X. The latch 53 passes through the long hole and cooperates with the mounting hole on the mounting bracket 52. The long hole can be provided to adjust the position of the heat insulation board 51 along the first direction X by changing the position of the latch 53 in the long hole.

[0146] In this embodiment, the bottom of the mounting bracket 52 is connected to the end plate 3 by shape matching. In order to make the mounting bracket 52 and the end plate 3 more stably connected, an auxiliary connection can be performed by a latch or a screw.

[0147] like Figures 3 to 8 As shown, the mounting bracket 52 includes a plurality of mounting portions 521 connected to each other and arranged along the second direction Y, and each mounting portion 521 is connected to the heat insulation board 51 via a latch 53. The at least one through hole 52A includes a mounting portion through hole 521A disposed on the mounting portion 521.

[0148] In the embodiment of the present application, the two ends of the heat insulation board 51 along the first direction X are connected to the corresponding end plate 3 by only one mounting bracket 52. In an embodiment not shown in the figure, the two ends of the heat insulation board 51 along the first direction X can be connected to the corresponding end plate 3 by more than two mounting brackets 52 arranged along the second direction Y.

[0149] Figures 3 to 8 In the illustrated embodiment, the mounting portion 521 includes a mounting plate frame 5211, the thickness direction of the frame wall of the mounting plate frame 5211 is perpendicular to the first direction X, and the top plate of the mounting plate frame 5211 is connected to the heat insulation board 51. The hollow portion of the mounting plate frame 5211 forms at least one mounting portion through hole 521A.

[0150] Figures 3 to 6 In the illustrated embodiment, the mounting bracket 52 includes a bracket base 522. A plurality of mounting plate frames 5211 as mounting portions 521 are mounted above the bracket base 522 to be connected together through the bracket base 522. The bottom of the bracket base 522 is matched with the top of the end plate 3 in shape.

[0151] In this embodiment, the middle portion of the top of the end plate 3 is upwardly convex relative to the two ends, and therefore, the middle portion of the bottom of the bracket base 522 is upwardly concave relative to the two ends, so that the end plate 3 and the bracket base 522 form a convex-concave shape match. The at least one end vent V1 includes at least one base top vent V11 formed between the top of the bracket base 522 and the heat insulation board 51.

[0152] Figures 3 to 6 The embodiment shown includes two mounting plate frames 5211 spaced apart along the second direction Y. A vent V11 is provided at the top of the base between the two mounting plate frames 5211. The cross section of each mounting plate frame 5211 perpendicular to the first direction X forms an m-shape, so that each mounting portion 521 has two mounting portion through holes 521A. Figures 3 to 6 As shown, the support base 522 portion where the two mounting plate frames 5211 are located is a slat laid flat on the middle of the top end of the end plate 3, so that the air vent V11 at the top of the base between the two mounting plate frames 5211 has the largest possible flow area.

[0153] The two avoidance recesses are respectively located at two ends of the plurality of mounting portions 521 along the second direction Y. The two U-shaped groove structures of the bracket base 522 are respectively connected to two ends of the slats in the middle of the bracket base 522. The hollow portion of each U-shaped groove structure forms an avoidance recess.

[0154] The two stoppers 525 are respectively connected to the two ends of the bracket base 522 along the second direction Y, and are respectively located outside the two avoidance recesses. Each stopper 525 is connected above the corresponding U-shaped groove structure, is located outside the avoidance recess, and abuts against the end surface of the side limit portion.

[0155] Figures 7 and 8 The embodiment shown is Figures 3 to 6 The difference from the illustrated embodiment is that the mounting bracket 52 includes a plurality of connecting portions 523, each connecting portion 523 being connected between two adjacent mounting portions 521 to connect the two adjacent mounting portions 521 together. The bottom formed by the mounting portion 521 and the connecting portion 523 is shaped to match the top of the end plate 3.

[0156] like Figures 7 and 8 As shown, the at least one end vent V1 includes at least one connection portion top vent V12 formed between the top of the connection portion 523 and the heat insulation board 51 . The at least one through hole 52A includes a connection portion through hole 523A disposed on the connection portion 523 .

[0157] Figures 7 and 8 In the illustrated embodiment, the mounting bracket 52 includes four mounting portions 521 arranged at intervals along the second direction Y and three connecting portions 523 .

[0158] In this embodiment, the mounting parts 521 are all mounting plate frames 5211. The mounting plate frames 5211 include two types, each including two. The cross section of the mounting plate frame 5211 located at the outside is square in perpendicular to the first direction X, so that each such mounting plate frame 5211 has a connecting portion through hole 523A. The cross section of the mounting plate frame 5211 located in the middle is square in perpendicular to the first direction X, and a vertically arranged partition wall is provided in the middle of the outer frame, so that each such mounting plate frame 5211 has two connecting portion through holes 523A.

[0159] Figures 7 and 8 In the illustrated embodiment, the connecting portion 523 includes two types.

[0160] A connection part 523 is formed in the form of a connection rod 5231. The connection rod 5231 is connected between two mounting plate frames 5211 located in the middle. The upper edge of the connection rod 5231 and the insulation board 51 form a connection top vent V12. The lower edge of the connection rod 5231 is in contact with the top surface of the end plate 3.

[0161] Another connection portion 523 is formed in the form of a connection plate frame 5232. Two connection plate frames 5232 are respectively connected between two adjacent mounting portions 521 on both sides of the connection rod 5231. The thickness direction of the frame wall of the connection plate frame 5232 is perpendicular to the first direction X, and the hollow portion of the connection plate frame 5232 forms at least one connection portion through hole 523A.

[0162] Each connecting plate frame 5232 includes two horizontal slats spaced apart from each other and a vertical slat connected to the middle of the two slats. Therefore, each connecting plate frame 5232 forms two connecting portion through holes 523A. The slats located at the top of each connecting plate frame 5232 and the insulation board 51 form a connecting portion top vent V12. The slats located at the bottom of each connecting plate frame 5232 fit the top surface of the end plate 3.

[0163] According to the above description, the embodiment of the present application involves optimizing the thermal runaway protection design of the structure of the mounting bracket 52 (corresponding to the supporting and fixing member in the related art) of the thermal insulation board assembly 5 of the battery module M. By setting a through hole 52A on the mounting bracket 52, the end exhaust channel of the battery module M is opened to prevent the accumulation of particles after the battery cell 20 has thermal runaway, and effectively improve the exhaust capacity and thermal safety reliability of the battery module M after thermal runaway. In addition, setting a through hole 52A on the mounting bracket 52 is also conducive to the overall lightweight of the thermal insulation board assembly 5.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution requested for protection in this application.

Claims

1. A battery, characterized in that: include: A battery pack (2) comprising a plurality of battery cells (20); Two end plates (3) are respectively arranged at two ends of the battery pack (2) along a first horizontal direction (X); Two side limit portions (4) are respectively arranged at two ends of the battery pack (2) along a second horizontal direction (Y), the second direction (Y) being perpendicular to the first direction (X), each of the side limit portions (4) being respectively connected to a corresponding end of the two end plates (3); and A heat insulation board assembly (5), comprising a heat insulation board (51) and a plurality of mounting brackets (52), wherein the plurality of mounting brackets (52) are respectively connected to the ends of the heat insulation board (51) along the first direction (X) and between the two end plates (3) so as to support the heat insulation board (51) above the battery pack (2) along a vertical third direction (Z) and form a gap (G) with the battery pack (2), and the mounting bracket (52) comprises at least one through hole (52A) penetrating the mounting bracket (52) along the first direction (X) so as to communicate with the gap (G).

2. The battery according to claim 1, characterized in that The plurality of mounting brackets (52) collectively comprise a plurality of through holes (52A) distributed along the second direction (Y).

3. The battery according to claim 1, characterized in that At least one end vent (V1) communicating with the gap (G) is formed between the mounting bracket (52) and the heat insulation board (51) and / or the end plate (3); and / or At least one side vent (V2) communicating with the gap (G) is formed between the heat insulation board (51) and the side limiting portion (4).

4. The battery according to claim 3, characterized in that The plurality of mounting brackets (52) together with the heat insulation board (51) and / or the end plate (3) form a plurality of end vents (V1) distributed along the second direction (Y).

5. The battery according to claim 1, characterized in that Also included is a CCS integrated busbar (6) connected to the plurality of battery cells (20), the CCS integrated busbar (6) comprising an integrated busbar body (61) disposed between the heat insulation board (51) and the battery pack (2) and an output pole (62) connected to the end of the integrated busbar body (61) along the first direction (X), the output pole (62) being connected to the top end of the end plate (3) corresponding to one end, and the output pole (62) being arranged in a staggered manner with respect to the at least one through hole (52A) along the second direction (Y).

6. The battery according to claim 5, characterized in that The bottom end of the mounting bracket (52) is lower than the bottom surface of the integrated busbar body (61); and / or The mounting bracket (52) comprises a avoiding portion (52B) for avoiding the output pole (62); and / or The mounting bracket (52) comprises a positioning structure for limiting the relative movement of the heat insulation board assembly (5) relative to the CCS integrated busbar (6).

7. The battery according to claim 6, characterized in that The avoidance portion (52B) comprises an avoidance recess; and / or The positioning structure comprises blocking bars (525) arranged at two ends of the mounting bracket (52) along the second direction (Y).

8. The battery according to claim 1, characterized in that The top of the mounting bracket (52) is detachably connected to the heat insulation board (51); and / or The bottom of the mounting bracket (52) is detachably connected to the end plate (3).

9. The battery according to claim 1, characterized in that The bottom of the mounting bracket (52) matches the top of the end plate (3) in shape.

10. The battery according to any one of claims 1 to 9, characterized in that The mounting bracket (52) comprises a plurality of mounting portions (521) arranged along the second direction (Y) and connected to each other, each mounting portion (521) being connected to the heat insulation board (51), and the at least one through hole (52A) comprises a mounting portion through hole (521A) provided on the mounting portion (521).

11. The battery according to claim 10, characterized in that The mounting portion (521) comprises a mounting plate frame (5211), the thickness direction of the frame wall of the mounting plate frame (5211) being perpendicular to the first direction (X), the top plate of the mounting plate frame (5211) being connected to the heat insulation board (51), and the hollow portion of the mounting plate frame (5211) forming at least one mounting portion through hole (521A).

12. The battery according to claim 10, characterized in that The mounting bracket (52) comprises a bracket base (522), the plurality of mounting portions (521) are mounted above the bracket base (522) to be connected together via the bracket base (522), and the bottom of the bracket base (522) matches the shape of the top of the end plate (3); or The mounting bracket (52) comprises a connecting portion (523), wherein the connecting portion (523) is connected between two adjacent mounting portions (521) to connect the two adjacent mounting portions (521) together, and a bottom portion formed together by the mounting portion (521) and the connecting portion (523) matches the shape of a top portion of the end plate (3) at a corresponding end.

13. The battery according to claim 12, characterized in that At least one end vent (V1) communicating with the gap (G) is formed between the mounting bracket (52) and the heat insulation board (51), wherein: The at least one end vent (V1) comprises at least one base top vent (V11) formed between the top of the support base (522) and the heat insulation board (51); or The at least one end vent (V1) comprises at least one connection portion top vent (V12) formed between the top of the connection portion (523) and the heat insulation board (51).

14. The battery according to claim 12, characterized in that The at least one through hole (52A) comprises a connecting portion through hole (523A) provided on the connecting portion (523); and / or The connecting portion (523) comprises a connecting rod (5231) connected between two adjacent mounting portions (521).

15. The battery according to claim 14, characterized in that The connecting portion (523) comprises a connecting plate frame (5232) connected between two adjacent mounting portions (521); the thickness direction of the frame wall of the connecting plate frame (5232) is perpendicular to the first direction (X); and the hollow portion of the connecting plate frame (5232) forms at least one connecting portion through hole (523A).

16. An electrical equipment, characterized in that: The invention comprises a battery according to any one of claims 1 to 15, wherein the battery is used to provide power to the power-consuming device.

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