Power lead-out structure for battery pack, battery pack and vehicle

Abstract

A power lead-out structure for a battery pack (1), the battery pack (1), and a vehicle. The power lead-out structure for the battery pack (1) comprises: a fixed platform (11), wherein an accommodating groove (11a) is formed in the fixed platform (11); and a lead-out busbar (121) accommodated in the accommodating groove (11a), wherein the lead-out busbar (121) comprises a positive electrode lead-out busbar and a negative electrode lead-out busbar and is fixed on the fixed platform (11).

Description

Power lead-out structure for battery pack, battery pack and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202323299057X filed on December 1, 2023, entitled “Power lead-out structure for battery pack, battery pack and vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of vehicles, and in particular to a power lead-out structure for a battery pack, a battery pack, and a vehicle. Background Art

[0004] In the related art, the conductive wires are arranged in a disorderly manner in the battery pack, which takes up too much space in the battery pack and is inconvenient for the arrangement of batteries and other structures.

[0005] Summary of the Invention

[0006] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a power extraction structure for a battery pack. This power extraction structure for a battery pack secures the lead wires to a fixed platform, thereby tidying the wiring inside the housing and conserving space within the housing to facilitate the arrangement of batteries and other components. This application further provides a battery pack having this power extraction structure.

[0007] The present application further proposes a vehicle having the above-mentioned battery pack.

[0008] The power lead-out structure for a battery pack according to the present application includes: a fixing platform, which is formed with a receiving groove; a lead wire bank, which is accommodated in the receiving groove; the lead wire bank includes a positive lead wire bank and a negative lead wire bank and is fixed to the fixing platform.

[0009] The power lead-out structure for the battery pack according to the present application can fix the lead-out wire row to the fixing platform, so that the wiring inside the shell is neat, saving the internal space of the shell to facilitate the arrangement of batteries and other structures.

[0010] The battery pack according to the present application includes: a plurality of batteries; a shell, the shell defining a accommodating cavity suitable for accommodating the plurality of batteries; a power lead-out structure, the power lead-out structure being arranged in the shell and constructed as the power lead-out structure for the battery pack described in any one of the above embodiments.

[0011] Since the battery pack according to the present application is provided with the power lead-out structure for the battery pack according to any one of the above embodiments, the battery pack has higher space utilization and structural strength.

[0012] The vehicle according to the present application includes the battery pack described in any one of the above embodiments.

[0013] Since the vehicle according to the present application is provided with the battery pack of the above-described embodiment, the vehicle is safer to use.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a structural diagram of a battery pack when a fixing platform is configured as a pallet side beam according to some embodiments of the present application.

[0016] FIG2 is an enlarged view of the circled area A in FIG1 .

[0017] FIG3 is a schematic structural diagram of a fixing platform provided with a receiving groove according to an embodiment of the present application.

[0018] FIG4 is a schematic structural diagram of a fixing platform provided with a plurality of receiving slots according to an embodiment of the present application.

[0019] FIG5 is a partial structural diagram of a lead wire assembly according to an embodiment of the present application.

[0020] FIG6 is a partial structural diagram of a lead wire assembly according to an embodiment of the present application.

[0021] FIG7 is a structural diagram of a fixing platform according to other embodiments of the present application.

[0022] Figures and Symbols: 1. Battery pack; 11. Fixing platform; 11a. Accommodating slot; 110a. First accommodating slot; 111a. Second accommodating slot; 11b. First snap-fitting slot; 11c. Second snap-fitting slot; 110. First surface; 111. Reinforcement structure; 12. Lead wire assembly; 121. Lead wire assembly; 1211. Extension section; 1212. First bending section; 1213. Second bending section; 1214. Buffer protrusion; 121a. First lead terminal; 121b. Second lead terminal; 122. High-voltage plug-in; 123. First insulating layer; 13. Insulating buffer; 14. Insulating fixing plate; 141. First snap-fitting pin; 142. Second snap-fitting pin; 15. High-temperature tape; 20. Tray bottom plate; 20a. Power distribution cavity; 20b. Battery cavity; 30. Tray side beam; 40. Partition beam; 50. Protective support member; 50a. Exhaust duct; 60. Distribution box. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0024] The power extraction structure for a battery pack according to an embodiment of the present application is described below with reference to FIG. 1 to FIG. 7 .

[0025] As shown in Figures 1 to 7, the power lead-out structure for the battery pack according to the present application includes: a fixing table 11 and a lead-out line 121. The fixing table 11 is suitable for installing the lead-out line 121. Specifically, the fixing table 11 is formed with a receiving groove 11a, and the lead-out line 121 is accommodated in the receiving groove 11a. In some embodiments, the lead-out line 121 includes a positive lead-out line and a negative lead-out line. The fixing table 11 can be constructed as at least a part of the shell of the battery pack 1. The lead-out line 121 is installed in the receiving groove 11a on the fixing table 11 to complete the wiring inside the shell. It can be understood that the positive lead-out line and the negative lead-out line can be accommodated in the same receiving groove 11a, or they can be accommodated in different receiving grooves 11a respectively. It can be selected according to actual needs and is not limited here.

[0026] According to the power lead-out structure for the battery pack of the present application, the lead-out wire row 121 can be fixed to the fixing platform 11, so that the wiring inside the shell is neat, saving the internal space of the shell for the arrangement of batteries and other structures.

[0027] The power lead-out structure for the battery pack according to the present application can be used as an arrangement form of a long aluminum busbar rear plug-in fast charging structure. At this time, one end of the positive lead-out line and one end of the negative lead-out line can be electrically connected to the distribution box 60 respectively, and one end of the positive lead-out line and the other end of the negative lead-out line can be electrically connected to other structures outside the battery pack 1 respectively; the power lead-out structure for the battery pack according to the present application can also be used for a parallel design of positive and negative electrodes of a short busbar. At this time, one end of the positive lead-out line and one end of the negative lead-out line can be electrically connected to the distribution box 60 respectively. Electrically connected to the positive and negative poles of the battery, one end of the positive lead wire bus and the other end of the negative lead wire bus can be electrically connected to other structures outside the battery pack 1 respectively; the power lead-out structure for the battery pack according to the present application can also be used to fix the wire bus inside the battery pack 1. At this time, one end of the positive lead wire bus and one end of the negative lead wire bus can be electrically connected to the positive and negative poles of the battery respectively, and one end of the positive lead wire bus and the other end of the negative lead wire bus can be electrically connected to the distribution box 60 respectively. It can be applied according to actual needs and is not limited here.

[0028] According to some embodiments of the present application, as shown in FIG3 , the positive lead wire row and the negative lead wire row are respectively accommodated in the same accommodating groove 11a, and the positive lead wire row and the negative lead wire row are stacked in the thickness direction. Specifically, the positive lead wire row and the negative lead wire row overlap in sequence in the thickness direction and are accommodated in the same accommodating groove 11a, which can improve the space utilization rate at the fixing table 11. The number of slots on the fixing table 11 is small, which facilitates the arrangement of other structural features on the fixing table 11, and the area of ​​a single accommodating groove 11a is also small, which can ensure that the fixing table 11 has sufficient structural strength. Here, when the positive lead wire row and the negative lead wire row are accommodated in the same accommodating groove 11a, the positive lead wire row and / or the negative lead wire row need to be insulated to avoid short circuits.

[0029] According to some embodiments of the present application, there is at least one positive lead wire row, and at least one negative lead wire row. One or more positive lead wire rows and one or more negative lead wire rows are stacked in the thickness direction and accommodated in an accommodating groove 11a. Multiple lead wire rows 121 are stacked, which facilitates the integrated transportation and installation of multiple lead wire rows 121, and can improve the strength and installation efficiency of the lead wire rows 121.

[0030] In some embodiments, the lead-out line bar 121 may be a copper bar or an aluminum bar.

[0031] In some embodiments, the fixing platform 11 may be an insulator to prevent the lead wires 121 from leaking into the housing. In other embodiments, the material of the fixing platform 11 is not limited, and an insulator may be provided between the fixing platform 11 and the lead wires 121 to prevent the lead wires 121 from leaking into the housing.

[0032] According to some embodiments of the present application, as shown in FIG4 , the accommodating slots 11a are constructed as a plurality of accommodating slots 11a, each of which is isolated from the other, forming at least one first accommodating slot 110a and at least one second accommodating slot 111a. The positive electrode lead wire array is accommodated in the first accommodating slot 110a, and the negative electrode lead wire array is accommodated in the second accommodating slot 111a. Specifically, the positive electrode lead wire array and the negative electrode lead wire array are respectively accommodated in different accommodating slots, and the different accommodating slots are spaced apart from each other. For example, the plurality of accommodating slots 11a can be arranged in parallel, with the positive electrode lead wire array corresponding to the first accommodating slot 110a on a one-to-one basis, and the negative electrode lead wire array corresponding to the second accommodating slot 111a on a one-to-one basis, and the positive electrode lead wire array and the negative electrode lead wire array are respectively accommodated in the corresponding accommodating slots 11a.

[0033] According to some embodiments of the present application, a plurality of positive lead wire banks stacked in the thickness direction are provided in each first accommodating groove 110a, and a plurality of negative lead wire banks stacked in the thickness direction are provided in each second accommodating groove 111a, so as to facilitate the integrated transportation and installation of the plurality of positive lead wire banks and the plurality of negative lead wire banks, and improve the strength and installation efficiency of the positive lead wire banks and the negative lead wire banks.

[0034] According to some embodiments of the present application, a plurality of lead wire rows 121 are overlapped in sequence in the thickness direction, and the plurality of lead wire rows 121 located in the same accommodating groove 11a are constructed as a lead wire row group 12. One side surface of the lead wire row 121 in the thickness direction is opposite to the bottom wall of the accommodating groove 11a, and the lead wire row group 12 in each accommodating groove 11a is constructed as an integral body to simplify the wiring operation inside the shell.

[0035] According to some embodiments of the present application, as shown in Figures 3-5 , the receiving groove 11a extends along a first direction; each lead wire row 121 includes an extension section 1211 and a first lead end 121a. The extension section 1211 extends along the first direction, and its projection in the thickness direction partially overlaps with the projection of the receiving groove 11a in the thickness direction. The first lead end 121a is located at one end of the extension section 1211 in the first direction and extends away from the fixing platform 11. Specifically, the receiving groove 11a and the extension section 1211 both extend along the first direction, and the receiving groove 11a can partially accommodate the extension section 1211 in the first direction. In this case, the projection of the extension section 1211 in the thickness direction partially overlaps with the projection of the receiving groove 11a in the thickness direction. At the same time, among the multiple lead wire rows 121 of the lead wire row group 12, the extension sections 1211 of the multiple lead wire rows 121 can all be accommodated in the accommodating groove 11a, or the extension sections 1211 of the lead wire row 121 arranged adjacent to the fixing platform 11 can be accommodated in the accommodating groove 11a, which is not limited here.

[0036] In some embodiments, the first lead-out end 121a can be connected to one end of the extension section 1211 in the extension direction, the extension section 1211 extends in the first direction, and the first lead-out end 121a extends in a direction away from the fixing platform 11 to be electrically connected to the positive or negative pole of the battery, or to the distribution box 60.

[0037] According to some embodiments of the present application, as shown in Figures 3 to 5, the fixing table 11 has a first surface 110, and the first surface 110 is formed with a receiving groove 11a; each lead wire row 121 also includes a first bending section 1212, one end of the first bending section 1212 is connected to one end of the extension section 1211 in the first direction, and the other end of the first bending section 1212 is bent toward one of the two side walls opposite to the receiving groove 11a and connected to the first lead end 121a. In some embodiments, the two side walls are opposite in the second direction, and the second direction is respectively orthogonal to the first direction and the thickness direction of the lead wire row group 12, and the other end of the first bending section 1212 is bent toward the second direction and connected to the first lead end 121a.

[0038] In some embodiments, the first bent section 1212 is connected to one end of the extension section 1211 in the extension direction and bends toward the second direction. The first lead end 121a can be connected to the first bent section 1212. The first lead end 121a extends away from the fixing platform 11 to electrically connect to the positive or negative electrode of the battery or the distribution box 60. In some embodiments, the first bent section 1212 and the extension section 1211 are arranged parallel to the first surface 110, and the first lead end 121a extends away from the first surface 110.

[0039] In some embodiments, a buffer protrusion 1214 is formed on part of the lead wire row 121 between the first bending section 1212 and the first lead end 121a. The buffer protrusion 1214 is suitable for acting as a buffer when the lead wire row 121 is subjected to force in the thickness direction, so as to avoid the force being transmitted to the positive electrode, negative electrode or distribution box 60 of the battery electrically connected to the first lead end 121a, thereby ensuring safe use.

[0040] According to some embodiments of the present application, as shown in Figures 1 and 5, the lengths of the extension sections 1211 of the plurality of lead wire rows 121 gradually increase in a direction toward the bottom wall of the accommodating groove 11a, so that the first bent sections 1212 of the plurality of lead wire rows 121 are spaced apart in the first direction. Specifically, since the plurality of lead wire rows 121 are stacked in the thickness direction and the first lead ends 121a of the plurality of lead wire rows 121 all extend in a direction away from the fixing platform 11, in order to avoid interference in the arrangement positions of the first lead ends 121a of the plurality of lead wire rows 121, the lengths of the extension sections 1211 of the plurality of lead wire rows 121 are gradually increased, so that the first bent sections 1212 of the plurality of lead wire rows 121 are spaced apart in the first direction, so as to facilitate the arrangement of the first lead ends 121a of the plurality of lead wire rows 121.

[0041] According to some embodiments of the present application, as shown in Figure 6, each lead wire row 121 also includes a second lead end 121b, which is arranged at the other end of the extension section 1211 in the first direction, and the second lead end 121b is suitable for being electrically connected to the high-voltage plug-in 122; the second lead ends 121b of a portion of the lead wire rows 121 in the multiple lead wire rows 121 are directly connected to the other end of the extension section 1211 in the first direction; the second lead ends 121b of another portion of the lead wire rows 121 in the multiple lead wire rows 121 are formed with a second bending section 1213, one end of the second bending section 1213 is connected to the other end of the extension section 1211 in the first direction, and the other end of the second bending section 1213 is bent toward one of the two side walls directly opposite the accommodating groove 11a and connected to the second lead end 121b, that is, the other end of the second bending section 1213 is bent toward the second direction and connected to the second lead end 121b.

[0042] In some embodiments, the high-voltage plug-in 122 has two connecting plugs, and the two connecting plugs are arranged in the second direction. The first lead-out end 121a of the battery positive lead-out line can be electrically connected to the positive electrode of the battery, and the second lead-out end 121b of the battery positive lead-out line is electrically connected to one connecting plug of the high-voltage plug-in 122. The first lead-out end 121a of the battery negative lead-out line is electrically connected to the negative electrode of the battery, and the second lead-out end 121b of the battery negative lead-out line is electrically connected to another connecting plug of the high-voltage plug-in 122. In some embodiments, since multiple lead-out lines 121 are stacked in the thickness direction and the two connecting plugs of the high-voltage plug-in 122 are arranged in the second direction, in order to ensure that the battery positive lead-out line The battery negative lead wire bus can be electrically connected to the corresponding connecting plug, and a second bending section 1213 is provided between the extension section 1211 of the battery positive lead wire bus and the second lead end 121b, or a second bending section 1213 is provided between the extension section 1211 of the battery negative lead wire bus and the second lead end 121b, so as to lead out one of the second lead ends 121b of the battery positive lead wire bus and the battery negative lead wire bus in the second direction, so that the second lead end 121b of the battery positive lead wire bus and the second lead end 121b of the battery negative lead wire bus are electrically connected to the high-voltage plug-in 122.

[0043] According to some embodiments of the present application, as shown in Figure 6, the power lead-out structure for the battery pack also includes a first insulating layer 123, which is arranged between the extension sections 1211 of two adjacent lead-out wire rows 121 to ensure that the two adjacent lead-out wire rows 121 are insulated from each other to avoid short circuit.

[0044] In some embodiments, the first insulating layer 123 is constructed of PET material.

[0045] According to some embodiments of the present application, a second insulating layer is provided on the outer surface of each lead wire row 121. In some embodiments, the lead wire rows 121 are made of a conductive material, and the second insulating layer can be provided on the outer surface of each lead wire row 121 to ensure insulation between two adjacent lead wire rows 121. The second insulating layer provided on the outer surface of the lead wire row 121 can also ensure insulation between the lead wire row 121 and the fixing platform 11.

[0046] Each lead wire row 121 can be manufactured separately, and the second insulating layer provided on each lead wire row 121 can be of the same insulating material or the same structure, or of different insulating materials or different structures. The structure of the second insulating layer includes but is not limited to plastic injection molding or hot melt molding, PI coating, mica coating, spraying and powder dipping technology, etc. The insulation design can be made by utilizing the characteristics of different insulation protection, which is not limited here.

[0047] According to some embodiments of the present application, as shown in Figure 6, an insulating buffer 13 is provided between the lead wire row group 12 and the bottom wall of the accommodating groove 11a. It can be understood that when the second insulating layer on the lead wire row 121 is in direct contact with the fixing platform 11, the vibration of the shell may cause the second insulating layer and the fixing platform 11 to rub and wear. Therefore, an insulating buffer 13 is provided between the lead wire row 121 and the bottom wall of the accommodating groove 11a to separate the lead wire row 121 from the bottom wall of the accommodating groove 11a, and the insulating buffer 13 adopts an insulating design to avoid leakage.

[0048] In some embodiments, the insulating buffer 13 may be a buffer foam structure, or other structures that can prevent the second insulating layer from directly contacting the bottom wall of the accommodating groove 11 a.

[0049] According to some embodiments of the present application, as shown in Figures 1 and 2, the power lead-out structure for the battery pack further includes an insulating fixing sheet 14. The surface of the insulating fixing sheet 14 facing the fixing platform 11 is adapted to abut against the surface of the lead wire group 12 facing away from the fixing platform 11. The setting position of the insulating fixing sheet 14 corresponds to the setting position of the insulating buffer 13 in the thickness direction of the lead wire group 12. In some embodiments, the insulating fixing sheet 14 can fix the lead wire group 12 within the accommodating groove 11a. In some embodiments, the buffer insulating member is constructed as a buffer foam. The setting position of the insulating fixing sheet 14 corresponds to the setting position of the insulating buffer 13 in the thickness direction of the lead wire group 12, so that the insulating fixing sheet 14 can apply force to the buffer foam, causing the buffer foam to have a certain amount of compression, thereby ensuring the buffering effect of the buffer foam.

[0050] According to some embodiments of the present application, as shown in Figures 1 to 4, the insulating fixing piece 14 is formed with a first card pin 141 and a second card pin 142 on one side in the thickness direction, and the first card pin 141 and the second card pin 142 are respectively located at the two ends of the insulating fixing piece 14 in the extension direction; the accommodating groove 11a is respectively provided with a first card slot 11b and a second card slot 11c on both sides of the first direction, and the setting position of the second card slot 11c corresponds to the setting position of the first card slot 11b, and the second card slot 11c and the first card slot 11b are both spaced apart from the accommodating groove 11a, the first card slot 11b is suitable for accommodating the first card pin 141, and the second card slot 11c is suitable for accommodating the second card pin 142, so that the insulating fixing piece 14 is engaged with the fixing platform 11, which can improve the assembly efficiency of the insulating fixing piece 14 and the fixing platform 11, and reduce the assembly difficulty of the insulating fixing piece 14 and the fixing platform 11.

[0051] According to some embodiments of the present application, as shown in Figure 1, the insulating buffer parts 13 and the insulating fixing plates 14 are respectively constructed as a plurality of insulating buffer parts 13 arranged at intervals along the first direction and corresponding to each other. Since the lead wire row 121 is relatively long in the first direction, a plurality of insulating buffer parts 13 arranged at intervals along the first direction are provided to ensure that the lead wire row 121 is separated from the bottom wall of the accommodating groove 11a, and a plurality of insulating fixing plates 14 arranged at intervals along the first direction are provided to fix the lead wire row 121 in the extension direction of the lead wire row 121, which can improve the problem that the lead wire row 121 is too long and easily deformed during transportation and installation.

[0052] In some embodiments, the insulating fixing piece 14 is configured as a plastic buckle.

[0053] According to some embodiments of the present application, an adhesive layer is provided between two adjacent lead wire rows 121, and the lead wire rows 121 are bonded and arranged with each other over a large surface, which can improve the problem of the lead wire rows 121 being too long and easily deformed during transportation and installation.

[0054] In some embodiments, as shown in Figures 1, 5, and 6, at least part of the outer periphery of the lead wire array 12 is wrapped and fixed with high-temperature tape 15, which can better improve the problem of the lead wire array 121 being too long and easily deformed during transportation and installation.

[0055] The battery pack 1 according to the present application is briefly described below.

[0056] As shown in Figure 1, the battery pack 1 according to the present application includes: a plurality of batteries, a shell and a power lead-out structure for the battery pack, the shell defines a receiving cavity suitable for accommodating a plurality of batteries; the power lead-out structure is arranged in the shell and is constructed as the power lead-out structure described in any one of the above embodiments. In some embodiments, the shell may include structures such as a tray, a partition beam 40 or a filler, and the fixing platform 11 may be provided in one or more of the above shell structures. The battery has positive and negative poles, and the lead-out wire row 121 is suitable for electrical connection with the positive or negative pole of the battery. The lead-out wire row 121 can be fixed to a preset position on the shell according to the internal structure design of the shell, and the specific position is not limited here. Since the battery pack 1 according to the present application is provided with the power lead-out structure for the battery pack described in the above embodiments, the battery pack 1 has higher space utilization and structural strength.

[0057] According to some embodiments of the present application, the shell includes a tray and a distribution box 60, the tray is formed with a accommodating cavity, and the distribution box 60 is arranged on the tray and accommodated in the accommodating cavity; wherein the power lead-out structure is arranged on the tray and electrically connected to the distribution box 60. Specifically, the power lead-out structure can be fixed as a whole on the surface of the tray, or it can be embedded in the interior of the tray, one end of the power lead-out structure is electrically connected to the positive and negative poles of the battery in the accommodating cavity, and the other end of the power lead-out structure is electrically connected to the distribution box 60.

[0058] According to some embodiments of the present application, a pallet includes a pallet bottom plate 20 and a pallet side beam 30. The pallet side beam 30 is disposed at the edge of the pallet bottom plate 20 and defines a receiving cavity together with the pallet bottom plate 20. The fixing platform 11 is disposed on the pallet side beam 30. When the fixing platform 11 is disposed on the pallet side beam 30, to enhance the structural strength of the fixing platform 11, a reinforcing structure 111 as shown in FIG2 may be disposed on the first surface 110 of the fixing platform 11. The reinforcing structure 111 in FIG2 is configured in a honeycomb shape. This reinforcing structure 111 includes a plurality of cavities, each of which has a cylindrical or conical peripheral wall. This improves the structural strength of the fixing platform 11, enables the fixing platform 11 to withstand more force, thereby reducing the risk of damage to the fixing platform 11 due to the expansion force of the battery when the battery expands. At the same time, the fixing platform 11 can withstand more impact energy, which is beneficial for reducing damage to the battery caused by the impact, thereby improving the safety of the battery. Furthermore, the batteries adjacent to the pallet side beam 30 are subjected to uniform force, thereby improving the overall consistency of the battery.

[0059] In some embodiments, the fixing platform 11 disposed on the pallet side beam 30 is constructed as a plastic part.

[0060] According to some embodiments of the present application, the housing further includes a partition beam 40, which is disposed in the accommodating cavity and divides the accommodating cavity into a battery cavity 20b and a distribution cavity 20a. The distribution cavity 20a is suitable for accommodating a distribution box 60; wherein at least a portion of the power lead-out structure extends to the distribution cavity 20a to be electrically connected to the distribution box 60. In some embodiments, a plurality of batteries are disposed in the battery cavity 20b, and a plurality of batteries and power-consuming structures (such as the distribution box 60) are also disposed in the distribution cavity 20a. The distribution cavity 20a is generally located at the front side of the housing in the direction of vehicle operation, and the fast-charging connector of the housing is at the rear side in the direction of vehicle operation. In this case, the lead-out wire assembly 12 of the power lead-out structure needs to extend from the fast-charging connector to the distribution cavity 20a and be bent to connect to the power-consuming structure in the distribution cavity 20a.

[0061] According to some embodiments of the present application, the fixing platform 11 is disposed on the partition beam 40 , and the lead wire group 12 can be fixed on the partition beam 40 to meet the wiring requirements of different battery packs 1 .

[0062] According to some embodiments of the present application, as shown in Figure 7, the fixing platform 11 is suitable for being opposite to and abutting against the battery, and at least one mounting cavity is defined in the fixing platform 11; the battery pack 1 also includes a protective support member 50, and at least one mounting cavity is provided with a protective support member 50, and an exhaust channel 50a is defined in the protective support member 50, and the exhaust channel 50a is suitable for being connected to the explosion-proof valve of the battery.

[0063] Specifically, the fixing platform 11 is adapted to be positioned opposite to and against the battery, so that the fixing platform 11 is used to at least withstand the expansion force of the battery, so that the fixing platform 11 can absorb the expansion of the battery, reduce the squeezing force on the battery, and play a certain role in bearing and protecting. As a result, the fixing platform 11 can adaptively absorb the expansion force of the battery to improve the safety of the battery. It is understandable that the fixing platform 11 can absorb a certain amount of impact energy. When the side of the battery pack 1 provided with the fixing platform 11 is impacted, the impact energy can be absorbed by the fixing platform 11, thereby reducing the deformation of the battery and playing a role in protecting the battery. Optionally, the fixing platform 11 can be a non-metallic part, such as a rubber part or a plastic part.

[0064] In some embodiments, at least one mounting cavity is defined within the fixing platform 11, and the mounting cavity is adapted to communicate with the inside and outside of the battery pack 1. At least one mounting cavity is provided with a protective support member 50, and an exhaust channel 50a is defined within the protective support member 50, and the exhaust channel 50a is adapted to communicate with the explosion-proof valve of the battery. The exhaust channel 50a can be connected to the outside of the battery pack 1, so that the battery can discharge high-temperature exhaust substances through the explosion-proof valve when thermal runaway occurs. By providing the protective support member 50 within the mounting cavity, when thermal runaway occurs, the protective support member 50 can separate the high-temperature gas from the cavity wall of the mounting cavity, so that the high-temperature gas does not contact the cavity wall, thereby reducing the risk of the mounting cavity being easily damaged by the high-temperature gas when thermal runaway occurs, which is conducive to improving the flexibility of material selection for the fixing platform 11. At the same time, the protective support member 50 has good structural strength relative to the fixing platform 11, so that when the fixing platform 11 is subjected to the expansion force of the battery, the protective support member 50 is slightly deformed or basically does not deform. The protective support member 50 can play a good supporting role for the fixing platform 11, thereby improving the structural stability of the exhaust channel 50a and the mounting cavity, thereby improving the stability of the mounting cavity. When the battery expands, the exhaust channel 50a always remains connected, which improves the exhaust smoothness and exhaust stability, reduces the risk of the exhaust channel 50a being squeezed and blocked due to battery expansion, and is beneficial to improving the structural stability and load-bearing capacity of the fixing platform 11, so that the high-temperature gas generated by the battery when thermal runaway occurs can be discharged out of the battery pack 1 through the exhaust channel 50a in a timely manner, thereby preventing other batteries from coming into contact with the high-temperature gas and continuing to cause more batteries to experience thermal runaway, slowing the speed of heat spread, and allowing the battery management system (BMS) to have sufficient response time so that the battery power line can be cut off in time, thereby improving the safety of the battery pack 1.

[0065] As can be seen, the provision of the protective support member 50 can, to a certain extent, reduce the risk of the mounting platform 11 being crushed by the expansion force of the battery, thereby improving the reliability of the mounting platform 11. It is understood that the mounting platform 11 defines a single mounting cavity, which is provided with the protective support member 50; if the mounting platform 11 defines multiple mounting cavities, at least one of the multiple mounting cavities is provided with the protective support member 50. Optionally, the cross-sectional shape of the mounting cavity is not limited; for example, the cross-sectional shape of the mounting cavity can be circular, elliptical, or square.

[0066] It is understandable that when there are multiple installation cavities, there is no specific restriction on the arrangement of the multiple installation cavities; regardless of whether there are one or more installation cavities, for a single installation cavity, the position of the installation cavity is not limited. For example, in the height direction of the fixing table 11, the installation cavity can be located at the end or the middle of the fixing table 11, etc., and in the width direction of the fixing table 11, the installation cavity can be located at the end or the middle of the fixing table 11, etc.

[0067] The vehicle according to the present application is briefly described below.

[0068] The vehicle according to the present application includes the battery pack 1 described in the above embodiment. Since the vehicle according to the present application is provided with the battery pack 1 of the above embodiment, the vehicle is safer to use.

[0069] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0070] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A power extraction structure for a battery pack, characterized in that: include: A fixing platform (11), wherein the fixing platform (11) is formed with a receiving groove (11a); A lead wire row (121), the lead wire row (121) being received in the receiving groove (11a); The lead wire row (121) comprises a positive electrode lead wire row and a negative electrode lead wire row and is fixed to the fixing platform (11).

2. The power extraction structure for a battery pack according to claim 1, characterized in that: The positive electrode lead wire row and the negative electrode lead wire row are respectively accommodated in the same accommodation groove (11a), and the positive electrode lead wire row and the negative electrode lead wire row are stacked in the thickness direction.

3. The power extraction structure for a battery pack according to claim 2, characterized in that: The positive electrode lead wire array is configured as at least one, the negative electrode lead wire array is configured as at least one, and one or more positive electrode lead wire arrays and one or more negative electrode lead wire arrays are stacked in the thickness direction and accommodated in one of the accommodating grooves (11a).

4. The power extraction structure for a battery pack according to claim 1, characterized in that: The accommodating groove (11a) is constructed in a plurality and forms at least one first accommodating groove (110a) and at least one second accommodating groove (111a) which are isolated from each other; the positive electrode lead wire row is accommodated in the first accommodating groove (110a) and the negative electrode lead wire row is accommodated in the second accommodating groove (111a).

5. The power extraction structure for a battery pack according to claim 4, characterized in that: A plurality of positive electrode lead wire rows stacked in the thickness direction are arranged in each of the first accommodating grooves (110a), and a plurality of negative electrode lead wire rows stacked in the thickness direction are arranged in each of the second accommodating grooves (111a).

6. The power extraction structure for a battery pack according to claim 3 or 5, characterized in that: A plurality of lead wire rows (121) located in the same accommodating groove (11a) are configured as a lead wire row group (12), and a side surface of the lead wire row (121) in the thickness direction faces the bottom wall of the accommodating groove (11a).

7. The power extraction structure for a battery pack according to claim 6, characterized in that: The accommodating groove (11a) extends along a first direction; Each of the lead-out lines (121) comprises: An extension section (1211), the extension section (1211) extending along a first direction and having a projection in a thickness direction that partially overlaps with a projection of the accommodation groove (11a) in the thickness direction; A first lead-out end (121a), the first lead-out end (121a) is located at one end of the extension section (1211) in a first direction and extends in a direction away from the fixing platform (11).

8. The power extraction structure for a battery pack according to claim 7, characterized in that: The fixing platform (11) has a first surface (110), and the first surface (110) is formed with the receiving groove (11a); Each of the lead-out lines (121) further comprises: A first bending section (1212), one end of the first bending section (1212) and the extension section (1211) are connected in a first direction. The other end of the first bent section (1212) is bent toward one of the two side walls directly facing the accommodating groove (11a) and is connected to the first lead-out end (121a).

9. The power extraction structure for a battery pack according to claim 8, characterized in that: In the direction toward the bottom wall of the accommodating groove (11a), the lengths of the extending sections (1211) of the plurality of lead wire rows (121) gradually increase, so that the first bending sections (1212) of the plurality of lead wire rows (121) are arranged at intervals in the first direction.

10. The power extraction structure for a battery pack according to claim 9, characterized in that: Each of the lead wire rows (121) further comprises a second lead end (121b), the second lead end (121b) being arranged at the other end of the extension section (1211) in the first direction, the second lead end (121b) being suitable for being electrically connected to a high-voltage plug-in unit (122); The second lead-out end (121b) of a portion of the lead-out line row (121) is directly connected to the other end of the extension section (1211) in the first direction; The second lead-out end (121b) of another part of the lead-out line row (121) is formed with a second bent section (1213), one end of the second bent section (1213) is connected to the other end of the extension section (1211) in the first direction, and the other end of the second bent section (1213) is bent toward one of the two side walls directly opposite to the accommodating groove (11a) and connected to the second lead-out end (121b).

11. The power extraction structure for a battery pack according to any one of claims 7 to 10, characterized in that: Also includes: A first insulating layer (123), wherein the first insulating layer (123) is disposed between the extending sections (1211) of two adjacent lead-out lines (121).

12. The power extraction structure for a battery pack according to any one of claims 1 to 11, characterized in that: The outer surface of each lead wire row (121) is provided with a second insulating layer.

13. The power extraction structure for a battery pack according to any one of claims 6 to 11, characterized in that: An insulating buffer (13) is provided between the lead wire array (12) and the bottom wall of the accommodating groove (11a).

14. The power extraction structure for a battery pack according to claim 13, characterized in that: Also includes: An insulating fixing sheet (14), wherein a surface of the insulating fixing sheet (14) facing the fixing platform (11) is adapted to abut against a surface of the lead wire array (12) facing away from the fixing platform (11), and a setting position of the insulating fixing sheet (14) corresponds to a setting position of the insulating buffer (13) in a thickness direction of the lead wire array (12).

15. The power extraction structure for a battery pack according to claim 14, characterized in that: A first clamping pin (141) and a second clamping pin (142) are formed on one side of the insulating fixing sheet (14) in the thickness direction, and the first clamping pin (141) and the second clamping pin (142) are respectively located at two ends of the insulating fixing sheet (14) in the extension direction; The receiving slot (11a) is provided with a first clamping slot (11b) and a second clamping slot (11c) on both sides in the first direction, respectively; the second clamping slot (11c) is provided at a position corresponding to the first clamping slot (11b), and the second clamping slot (11c) and the first clamping slot (11b) are both provided at intervals from the receiving slot (11a); the first clamping slot (11b) is suitable for accommodating the first clamping pin (141), and the second clamping slot (11c) is suitable for accommodating the first clamping pin (141). The second card pin (142).

16. The power extraction structure for a battery pack according to claim 14 or 15, characterized in that: The insulating buffer (13) and the insulating fixing sheet (14) are respectively constructed as a plurality of insulating buffers arranged at intervals along the first direction and corresponding to each other.

17. The power extraction structure for a battery pack according to any one of claims 1 to 16, characterized in that: An adhesive layer is provided between two adjacent lead-out line rows (121).

18. A battery pack, characterized in that: include: Multiple batteries; A housing, wherein the housing defines a receiving cavity suitable for receiving a plurality of the batteries; A power lead-off structure, which is arranged on the shell and is constructed as the power lead-off structure according to any one of claims 1-17.

19. The battery pack according to claim 18, characterized in that: The housing comprises: A tray, wherein the tray is formed with a receiving cavity; A distribution box (60), the distribution box (60) is arranged on the tray and accommodated in the accommodating cavity; wherein The power extraction structure is arranged on the tray and is electrically connected to the distribution box (60).

20. The battery pack according to claim 19, characterized in that: The tray comprises: Tray bottom plate (20); A pallet side beam (30) is provided at the edge of the pallet bottom plate (20) and defines the accommodating cavity together with the pallet bottom plate (20); and the fixing platform (11) is provided on the pallet side beam (30).

21. The battery pack according to claim 19 or 20, characterized in that: The housing further comprises: A partition beam (40), the partition beam (40) being arranged in the accommodating cavity and dividing the accommodating cavity into a battery cavity (20b) and a power distribution cavity (20a), the power distribution cavity (20a) being suitable for accommodating the power distribution box (60); wherein At least a portion of the power lead-out structure extends to the power distribution cavity (20a) to be electrically connected to the power distribution box (60).

22. The battery pack according to claim 21, characterized in that: The fixing platform (11) is arranged on the partition beam (40).

23. The battery pack according to claim 22, characterized in that: The fixing platform (11) is suitable for being arranged opposite to and abutting against the battery, and at least one installation cavity is defined in the fixing platform (11); The battery pack (1) further comprises: a protective support member (50), wherein at least one of the mounting cavities is provided with the protective support member (50), and an exhaust channel (50a) is defined in the protective support member (50), wherein the exhaust channel (50a) is suitable for being connected to an explosion-proof valve of the battery.

24. A vehicle, characterized in that: Comprising a battery pack (1) according to any one of claims 18 to 23.

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