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

Abstract

The utility model discloses a power lead-out structure for a battery pack, the battery pack and a vehicle, and the power lead-out structure for the battery pack comprises a fixed table, a power lead-out device and a power lead-out device, the leading-out wire row is accommodated in the accommodating groove; the lead-out wire row comprises a positive electrode lead-out wire row and a negative electrode lead-out wire row and is fixed on the fixed station. According to the power lead-out structure for the battery pack, the lead-out wire row is fixed on the fixing table, so that wiring in the shell is tidy, the internal space of the shell is saved, and arrangement of batteries and other structures is facilitated.

Description

Technical Field

[0001] The utility model 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

[0002] In the related art, the vehicle battery pack leads out conductive wires (such as copper bars and aluminum bars) to electrically connect with other structures. The conductive wire connected to the total positive electrode of the battery pack is the positive conductive wire, and the conductive wire connected to the total negative electrode of the battery pack is the negative conductive wire. In the prior art, the conductive wires are arranged in a disorderly manner in the battery pack, occupying too much space in the battery pack, which is not convenient for the arrangement of batteries and other structures. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a power lead-out structure for a battery pack. The power lead-out structure for a battery pack designed according to the utility model fixes the lead-out wire row to a fixing table so that the wiring inside the shell is neat, saving the internal space of the shell for the arrangement of batteries and other structures.

[0004] The utility model also provides a battery pack having the above power lead-out structure.

[0005] The utility model also provides a vehicle with the battery pack.

[0006] The power lead-out structure for a battery pack according to the utility model comprises: a fixing platform, the fixing platform is formed with a receiving groove; a lead-out line row, the lead-out line row is received in the receiving groove; the lead-out line row comprises a positive lead-out line row and a negative lead-out line row and is fixed to the fixing platform.

[0007] According to the power lead-out structure for a battery pack of the utility model, the lead-out wire row can be fixed to a 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.

[0008] According to some embodiments of the present invention, the positive lead wire row and the negative lead wire row are respectively accommodated in the same accommodating groove, and the positive lead wire row and the negative lead wire row are stacked in the thickness direction.

[0009] According to some embodiments of the present invention, 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 one of the accommodating grooves.

[0010] According to some embodiments of the utility model, the accommodating groove is constructed in multiple forms to form at least one first accommodating groove and at least one second accommodating groove that are isolated from each other, the positive lead wire array is accommodated in the first accommodating groove, and the negative lead wire array is accommodated in the second accommodating groove.

[0011] According to some embodiments of the present invention, each of the first accommodating grooves is provided with a plurality of positive electrode lead wire rows stacked in the thickness direction, and each of the second accommodating grooves is provided with a plurality of negative electrode lead wire rows stacked in the thickness direction.

[0012] According to some embodiments of the present invention, a plurality of lead wire rows located in the same accommodating groove are configured as a lead wire row group, and a side surface of the lead wire row in the thickness direction is directly opposite to the bottom wall of the accommodating groove.

[0013] According to some embodiments of the utility model, the accommodating groove extends along a first direction; each of the lead-out wire rows comprises: an extension section, which extends along the first direction and whose projection in the thickness direction partially overlaps with the projection of the accommodating groove in the thickness direction; and a first lead-out end, which is located at one end of the extension section in the first direction and extends in a direction away from the fixing platform.

[0014] According to some embodiments of the utility model, the fixing table has a first surface, on which the accommodating groove is formed; each of the lead-out wire rows also includes: a first bending section, one end of which is connected to one end of the extension section in a first direction, and the other end of the first bending section is bent toward one of the two side walls opposite to the accommodating groove and connected to the first lead-out end.

[0015] According to some embodiments of the present invention, in the direction toward the bottom wall of the accommodating groove, the lengths of the extending sections of the plurality of lead wire rows gradually increase, so that the first bending sections of the plurality of lead wire rows are spaced apart in the first direction.

[0016] According to some embodiments of the utility model, each of the lead-out wire rows also includes a second lead-out end, which is arranged at the other end of the extension section in the first direction, and the second lead-out end is suitable for being electrically connected to a high-voltage plug-in; the second lead-out ends of a portion of the lead-out wire rows are directly connected to the other end of the extension section in the first direction; the second lead-out ends of another portion of the lead-out wire rows are formed with a second bending section, one end of the second bending section is connected to the other end of the extension section in the first direction, and the other end of the second bending section is bent toward one of the two side walls directly opposite to the accommodating groove and connected to the second lead-out end.

[0017] According to some embodiments of the present invention, the power lead-out structure for a battery pack further includes: a first insulating layer, wherein the first insulating layer is disposed between the extension sections of two adjacent lead-out wire rows.

[0018] According to some embodiments of the present invention, a second insulating layer is provided on the outer surface of each lead-out line row.

[0019] According to some embodiments of the present invention, an insulating buffer is provided between the lead wire array and the bottom wall of the accommodating groove.

[0020] According to some embodiments of the utility model, the power lead-out structure for the battery pack further includes: an insulating fixing plate, wherein the surface of the insulating fixing plate facing the fixing platform is suitable for abutting against the surface of the lead wire group facing away from the fixing platform, and the setting position of the insulating fixing plate corresponds to the setting position of the insulating buffer member in the thickness direction of the lead wire group.

[0021] According to some embodiments of the utility model, a first card pin and a second card pin are formed on one side of the insulating fixing plate in the thickness direction, and the first card pin and the second card pin are respectively located at the two ends of the insulating fixing plate in the extension direction; the first card slot and the second card slot are respectively provided on both sides of the accommodating groove in the first direction, the setting position of the second card slot corresponds to the setting position of the first card slot and the second card slot and the first card slot are both spaced apart from the accommodating groove, the first card slot is suitable for accommodating the first card pin, and the second card slot is suitable for accommodating the second card pin.

[0022] According to some embodiments of the present invention, the insulating buffer and the insulating fixing plate are respectively constructed to be a plurality of pieces which are arranged at intervals and correspond to each other in a one-to-one manner along the first direction.

[0023] According to some embodiments of the present invention, an adhesive layer is provided between two adjacent lead-out line rows.

[0024] The following briefly describes the battery pack according to the second embodiment of the utility model.

[0025] The battery pack according to the utility model includes: a plurality of batteries; a shell, the shell defining a receiving cavity suitable for receiving the plurality of batteries; a power lead-out structure, the power lead-out structure being arranged on the shell and being constructed as the power lead-out structure for the battery pack described in any one of the above embodiments. Since the battery pack according to the utility model is provided with the power lead-out structure for the battery pack described in the above embodiments, the battery pack has higher space utilization and structural strength.

[0026] According to some embodiments of the utility model, the shell includes: a tray, the tray is formed with a accommodating cavity; a distribution box, the distribution box 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.

[0027] According to some embodiments of the utility model, the pallet includes: a pallet bottom plate; a pallet side beam, wherein the pallet side beam is arranged at the edge of the pallet bottom plate and defines the accommodating cavity together with the pallet bottom plate, and the fixing platform is arranged on the pallet side beam.

[0028] According to some embodiments of the utility model, the shell includes: a partition beam, which is arranged in the accommodating cavity and divides the accommodating cavity into a battery cavity and a distribution cavity, and the distribution cavity is suitable for accommodating the distribution box; wherein at least part of the power lead-out structure extends to the distribution cavity to be electrically connected to the distribution box.

[0029] According to some embodiments of the present invention, the fixing platform is configured as the partition beam.

[0030] According to some embodiments of the utility model, the fixing platform is suitable for being opposite to and abutting against the battery, and at least one installation cavity is defined in the fixing platform; the battery pack also includes: a protective support member, at least one of the installation cavities is provided with the protective support member, and an exhaust channel is defined in the protective support member, and the exhaust channel is suitable for being connected to an explosion-proof valve of the battery.

[0031] The following briefly describes a vehicle according to an embodiment of the third aspect of the utility model.

[0032] The vehicle according to the utility model comprises the battery pack described in any one of the above embodiments. Since the vehicle according to the utility model is provided with the battery pack described in the above embodiments, the vehicle is safer to use.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 It is a structural diagram of a battery pack when the fixing platform is constructed as a tray side beam according to some embodiments of the utility model.

[0036] Figure 2 yes Figure 1 The middle circle shows an enlarged view of point A.

[0037] Figure 3 It is a structural schematic diagram of a fixing platform provided with a containing groove according to an embodiment of the utility model.

[0038] Figure 4 It is a structural schematic diagram of a fixing platform provided with a plurality of accommodating grooves according to an embodiment of the utility model.

[0039] Figure 5 It is a partial structural diagram of a lead wire arrangement according to an embodiment of the utility model.

[0040] Figure 6 It is a partial structural diagram of a lead wire arrangement according to an embodiment of the utility model.

[0041] Figure 7 It is a structural diagram of a fixing platform according to other embodiments of the utility model.

[0042] Reference numerals:

[0043] 1. Battery pack;

[0044] 11, fixing platform; 11a, receiving groove; 110a, first receiving groove; 111a, second receiving groove; 11b, first clamping groove; 11c, second clamping groove; 110, first surface; 111, reinforcement structure;

[0045] 12, lead wire row group; 121, lead wire row; 1211, extension section; 1212, first bending section; 1213, second bending section; 1214, buffer protrusion; 121a, first lead end; 121b, second lead end; 122, high voltage plug-in; 123, first insulating layer;

[0046] 13. Insulation buffer; 14. Insulation fixing sheet; 141. First card pin; 142. Second card pin; 15. High temperature tape;

[0047] 20. tray bottom plate; 20a. power distribution cavity; 20b. battery cavity;

[0048] 30. Pallet side beams;

[0049] 40. Partition beam; 50. Protective support member; 50a. Exhaust duct; 60. Distribution box. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below, and 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 invention, and cannot be understood as limiting the present invention.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the related art, the vehicle battery pack leads out conductive wires (such as copper bars and aluminum bars) to electrically connect with other structures. The conductive wire connected to the total positive electrode of the battery pack is the positive conductive wire, and the conductive wire connected to the total negative electrode of the battery pack is the negative conductive wire. In the prior art, the conductive wires are arranged in a disorderly manner in the battery pack, occupying too much space in the battery pack, which is not convenient for the arrangement of batteries and other structures.

[0056] Reference below Figure 1-Figure 7 A power extraction structure for a battery pack according to an embodiment of the utility model is described.

[0057] like Figure 1-Figure 7 As shown, the power lead-out structure for the battery pack according to the utility model 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 received in the receiving groove 11a. Among them, 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 received in the same receiving groove 11a, or they can be received in different receiving grooves 11a respectively. It can be selected according to actual needs and is not limited here.

[0058] According to the power lead-out structure for the battery pack of the present invention, 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 to facilitate the arrangement of batteries and other structures.

[0059] 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. In this case, 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. In this case, 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 row and the other end of the negative lead wire row 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 row inside the battery pack 1, at this time, one end of the positive lead wire row and one end of the negative lead wire row can be electrically connected to the positive and negative poles of the battery respectively, one end of the positive lead wire row and the other end of the negative lead wire row can be electrically connected to the distribution box 60 respectively, and it can be applied according to actual needs and is not limited here.

[0060] According to some embodiments of the present invention, Figure 3As shown, 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 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 is convenient for 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 circuit.

[0061] According to some embodiments of the utility model, 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 is convenient for integrated transportation and installation of multiple lead wire rows 121, and can improve the strength and installation efficiency of the lead wire rows 121.

[0062] In some embodiments, the lead-out line bar 121 may be a copper bar or an aluminum bar.

[0063] In some embodiments, the fixing platform 11 may be an insulating member to prevent the lead wire row 121 from leaking to the housing. In other embodiments, the material of the fixing platform 11 is not limited, and an insulating member may be provided between the fixing platform 11 and the lead wire row 121 to prevent the lead wire row 121 from leaking to the housing.

[0064] According to some embodiments of the present invention, Figure 4 As shown, the receiving groove 11a is constructed as a plurality of at least one first receiving groove 110a and at least one second receiving groove 111a which are isolated from each other. The positive lead wire row is received in the first receiving groove 110a, and the negative lead wire row is received in the second receiving groove 111a. Specifically, the positive lead wire row and the negative lead wire row are received in different receiving grooves, and the different receiving grooves are spaced apart from each other. For example, the plurality of receiving grooves 11a can be arranged in parallel, the positive lead wire row corresponds to the first receiving groove 110a one-to-one, and the negative lead wire row corresponds to the second receiving groove 111a one-to-one. The positive lead wire row and the negative lead wire row are received in the corresponding receiving grooves 11a.

[0065] According to some embodiments of the utility model, each first accommodating groove 110a is provided with a plurality of positive lead wire rows stacked in the thickness direction, and each second accommodating groove 111a is provided with a plurality of negative lead wire rows stacked in the thickness direction, so as to facilitate the integrated transportation and installation of the plurality of positive lead wire rows and the plurality of negative lead wire rows, and improve the strength and installation efficiency of the positive lead wire rows and the negative lead wire rows.

[0066] According to some embodiments of the utility model, 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, and a side surface of the lead wire row 121 in the thickness direction is directly 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.

[0067] According to some embodiments of the present invention, Figure 3-Figure 5 As shown, the receiving groove 11a extends along the first direction; each lead line row 121 includes an extension section 1211 and a first lead end 121a, the extension section 1211 extends along the first direction and the 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 in a direction 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 accommodate part of the extension section 1211 in the first direction, and at this time, 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.

[0068] In some embodiments, the first lead 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 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.

[0069] According to some embodiments of the present invention, Figure 3-Figure 5As shown, the fixing platform 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.

[0070] In some embodiments, the first bending section 1212 is connected to one end of the extension section 1211 in the extension direction and is bent toward the second direction, and the first lead end 121a can be connected to the first bending section 1212, and the first lead end 121a extends in a direction away from the fixing platform 11 to be electrically connected to the positive electrode, the negative electrode of the battery or the distribution box 60. The first bending section 1212 and the extension section 1211 are arranged parallel to the first surface 110, and the first lead end 121a extends in a direction away from the first surface 110.

[0071] In some embodiments, a buffer protrusion 1214 is formed on part of the lead-out line 121 between the first bending section 1212 and the first lead-out end 121a. The buffer protrusion 1214 is suitable for playing a buffering role when the lead-out line 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-out end 121a, thereby ensuring safe use.

[0072] According to some embodiments of the present invention, Figure 1 , Figure 5 As shown, in the direction toward the bottom wall of the accommodating groove 11a, the length of the extension section 1211 of the plurality of lead wire rows 121 gradually increases, so that the first bending sections 1212 of the plurality of lead wire rows 121 are arranged at intervals 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 length of the extension section 1211 of the plurality of lead wire rows 121 is gradually increased, so that the first bending sections 1212 of the plurality of lead wire rows 121 are arranged at intervals in the first direction, so as to arrange the first lead ends 121a of the plurality of lead wire rows 121.

[0073] According to some embodiments of the present invention, Figure 6As shown, 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 part of the lead wire rows 121 in the plurality of 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 part of the lead wire rows 121 in the plurality of 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 to 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.

[0074] In some embodiments, the high-voltage plug-in 122 has two connection plugs, and the two connection plugs are arranged in the second direction. The first lead-out end 121a of the positive lead-out line of the battery can be electrically connected to the positive electrode of the battery, and the second lead-out end 121b of the positive lead-out line of the battery is electrically connected to a connection plug of the high-voltage plug-in 122. The first lead-out end 121a of the negative lead-out line of the battery is electrically connected to the negative electrode of the battery, and the second lead-out end 121b of the negative lead-out line of the battery is electrically connected to another connection plug of the high-voltage plug-in 122. Since the plurality of lead-out lines 121 are stacked in the thickness direction and the two connection plugs of the high-voltage plug-in 122 are arranged in the second direction, in order to ensure that the positive lead-out line of the battery and the electric The negative lead wire row of the battery can be electrically connected to the corresponding connecting plug, and a second bending section 1213 is set between the extension section 1211 of the positive lead wire row of the battery and the second lead end 121b, or a second bending section 1213 is set between the extension section 1211 of the negative lead wire row of the battery and the second lead end 121b of the negative lead wire row of the battery, so as to lead out one of the second lead ends 121b of the positive lead wire row of the battery and the negative lead wire row of the battery in the second direction, so that the second lead end 121b of the positive lead wire row of the battery and the second lead end 121b of the negative lead wire row of the battery are electrically connected to the high-voltage plug-in 122.

[0075] According to some embodiments of the present invention, Figure 6 As shown, the power lead-out structure for the battery pack further includes a first insulating layer 123, which is disposed between the extension sections 1211 of two adjacent lead-out lines 121 to ensure that the two adjacent lead-out lines 121 are insulated from each other to avoid short circuit.

[0076] In some embodiments, the first insulating layer 123 is constructed of PET material.

[0077] According to some embodiments of the present invention, a second insulating layer is disposed on the outer surface of each lead wire row 121. Specifically, the lead wire row 121 is made of a conductive material, and a second insulating layer can be disposed on the outer surface of each lead wire row 121 to ensure the insulation effect between two adjacent lead wire rows 121, and the second insulating layer disposed on the outer surface of the lead wire row 121 can also ensure the insulation effect between the lead wire row 121 and the fixing platform 11.

[0078] 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, spray powder dipping technology, etc. The insulation design can be made by utilizing the characteristics of different insulation protection, which is not limited here.

[0079] According to some embodiments of the present invention, Figure 6 As shown, 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 each other. 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.

[0080] In some embodiments, the insulating buffer 13 may be a buffer foam structure, or may be other structures that can prevent the second insulating layer from directly contacting the bottom wall of the receiving groove 11 a.

[0081] According to some embodiments of the present invention, Figure 1-Figure 2 As shown, 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 suitable for abutting against the surface of the lead wire group 12 away from the fixing platform 11, and 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. Specifically, the insulating fixing sheet 14 can fix the lead wire group 12 in the accommodating groove 11a. In some embodiments, the buffer insulating member is configured as a buffer foam, and 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, so that the buffer foam has a certain amount of compression, and the buffering effect of the buffer foam is ensured.

[0082] According to some embodiments of the present invention, Figure 1-Figure 4As shown, the insulating fixing sheet 14 is formed with a first clamping pin 141 and a second clamping pin 142 on one side in the thickness direction, and the first clamping pin 141 and the second clamping pin 142 are respectively located at the two ends of the insulating fixing sheet 14 in the extension direction; the first clamping slot 11b and the second clamping slot 11c are respectively provided on both sides of the accommodating groove 11a in the first direction, the setting position of the second clamping slot 11c corresponds to the setting position of the first clamping slot 11b, and the second clamping slot 11c and the first clamping slot 11b are both spaced apart from the accommodating groove 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 second clamping pin 142, so that the insulating fixing sheet 14 is clamped and matched with the fixing platform 11, which can improve the assembly efficiency of the insulating fixing sheet 14 and the fixing platform 11, and reduce the assembly difficulty of the insulating fixing sheet 14 and the fixing platform 11.

[0083] According to some embodiments of the present invention, Figure 1 As shown, the insulating buffer members 13 and the insulating fixing plates 14 are respectively constructed as a plurality of insulating buffer members 13 that are arranged at intervals along the first direction and correspond to each other one by one. Since the lead wire row 121 is relatively long in the first direction, a plurality of insulating buffer members 13 that are arranged at intervals along the first direction are provided to ensure that the lead wire row 121 is spaced apart from the bottom wall of the accommodating groove 11a, and a plurality of insulating fixing plates 14 that are 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.

[0084] In some embodiments, the insulating fixing piece 14 is configured as a plastic buckle.

[0085] According to some embodiments of the present invention, an adhesive layer is provided between two adjacent lead wire rows 121, and the lead wire rows 121 are bonded and arranged with large surfaces to improve the problem of the lead wire rows 121 being too long and easily deformed during transportation and installation.

[0086] In some embodiments, Figure 1 , Figure 5 , Figure 6 As shown, at least a portion of the outer periphery of the lead wire array 12 is provided with a high temperature tape 15 wound and fixed, which can further improve the problem that the lead wire array 121 is too long and easily deformed during transportation and installation.

[0087] The battery pack 1 according to the present invention is briefly described below.

[0088] like Figure 1As shown, the battery pack 1 according to the utility model 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 arranged 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 being electrically connected to 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 utility model is provided with the power lead-out structure for the battery pack of the above embodiment, the battery pack 1 has higher space utilization and structural strength.

[0089] According to some embodiments of the utility model, 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 is 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 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.

[0090] According to some embodiments of the present invention, the 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, in order to enhance the structural strength of the fixing platform 11, the first surface 110 of the fixing platform 11 may be provided with the following Figure 2 The reinforcement structure 111 shown, Figure 2 The reinforcement structure 111 is constructed in a honeycomb shape, and includes a plurality of cavities, each of which has a cylindrical or conical wall to improve the structural strength of the fixing platform 11. The fixing platform 11 can withstand more force, thereby reducing the risk of damage to the fixing platform 11 under 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 to reduce the damage to the battery caused by the impact, thereby improving the safety of the battery, and the batteries adjacent to the tray side beam 30 are subjected to uniform force, which can improve the overall consistency of the battery.

[0091] In some embodiments, the fixing platform 11 disposed on the pallet side beam 30 is constructed as a plastic part.

[0092] According to some embodiments of the utility model, the shell 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, wherein 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 a power-using structure (such as a distribution box 60) are also disposed in the distribution cavity 20a. The distribution cavity 20a is generally located at the front side of the shell in the direction of vehicle operation, and the fast-charging connector of the shell is at the rear side in the direction of vehicle operation. At this time, the lead-out wire array 12 of the power lead-out structure needs to extend from the fast-charging connector to the distribution cavity 20a and be bent to be connected to the power-using structure in the distribution cavity 20a.

[0093] According to some embodiments of the present invention, 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 .

[0094] According to some embodiments of the present invention, Figure 7 As shown, 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, 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.

[0095] Specifically, the fixing platform 11 is suitable for being arranged opposite to the battery and abutting against it, so that the fixing platform 11 is used to at least bear the expansion force of the battery, so that the fixing platform 11 can absorb the expansion of the battery, reduce the extrusion force on the battery, and play a certain bearing and protection role. As a result, the fixing platform 11 can adaptively absorb the expansion force of the battery to improve the safety of the battery. It can be understood that the fixing platform 11 can absorb a certain impact energy. When the side of the battery pack 1 provided with the fixing platform 11 is hit, 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.

[0096] Among them, at least one installation cavity is defined in the fixing platform 11, and the installation cavity is suitable for connecting the inside and outside of the battery pack 1. At least one installation cavity is provided with a protective support 50, and an exhaust channel 50a is defined in the protective support 50, and the exhaust channel 50a is suitable for connecting 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 the battery has thermal runaway. By arranging the protective support 50 in the installation cavity, when the battery has thermal runaway, the protective support 50 can separate the high-temperature gas from the cavity wall of the installation cavity, so that the high-temperature gas does not contact the wall surface of the installation cavity, so as to reduce the risk of the installation cavity being easily damaged by the high-temperature gas when thermal runaway occurs, which is conducive to improving the flexibility of material selection of the fixing platform 11; at the same time, the protective support 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 deformation of the protective support 50 is small or basically not deformed, and the protective support 50 can play a good supporting role on the fixing platform 11, so as to improve the structural stability of the exhaust channel 50a and the installation cavity, so as to When the battery expands, the exhaust channel 50a always remains connected, thereby improving the exhaust smoothness and exhaust stability, reducing the risk of the exhaust channel 50a being blocked due to squeezing the exhaust channel 50a due to battery expansion, and is beneficial to improving the structural stability and carrying 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 time, thereby preventing other batteries from contacting with the high-temperature gas and continuing to cause more batteries to experience thermal runaway, slowing down 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.

[0097] It can be seen that the provision of the protective support member 50 can reduce the possibility of the fixing platform 11 being crushed by the battery expansion force to a certain extent, thereby improving the reliability of the fixing platform 11. It can be understood that a mounting cavity is defined in the fixing platform 11, and the mounting cavity is provided with the protective support member 50; when multiple mounting cavities are defined in the fixing platform 11, 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, etc.

[0098] It can be understood that when there are multiple installation cavities, the arrangement of the multiple installation cavities is not specifically limited; no matter 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 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 middle of the fixing table 11, etc.

[0099] The vehicle according to the present utility model is briefly described below.

[0100] The vehicle according to the present invention includes the battery pack 1 described in the above embodiment. Since the vehicle according to the present invention is provided with the battery pack 1 of the above embodiment, the vehicle is safer to use.

[0101] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 utility model. In this specification, the schematic representations 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 one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0102] Although embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

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) is connected to one end of the extension section (1211) in a first direction, and the other end of the first bending section (1212) is bent toward one of the two side walls directly opposite to the accommodating groove (11a) and 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 claim 7, 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 claim 1, 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 claim 6, 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; A first clamping groove (11b) and a second clamping groove (11c) are respectively arranged on both sides of the accommodating groove (11a) in the first direction; the setting position of the second clamping groove (11c) corresponds to the setting position of the first clamping groove (11b); and the second clamping groove (11c) and the first clamping groove (11b) are both arranged at intervals from the accommodating groove (11a); the first clamping groove (11b) is suitable for accommodating the first clamping pin (141); and the second clamping groove (11c) is suitable for accommodating the second clamping pin (142).

16. The power extraction structure for a battery pack according to claim 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 claim 1, 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, 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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