Battery pack and vehicle

Abstract

The utility model provides a battery pack and a vehicle and relates to the technical field of battery pack assembly, the battery pack comprises a shell, a battery module and a high-voltage plug-in, the battery module and the high-voltage plug-in are arranged in the shell and are connected through a conductive connecting piece, a cross beam and a longitudinal beam are further arranged in the shell, and the conductive connecting piece comprises a conductive main body of which one end is connected with the high-voltage plug-in; the conductive main body extends outwards, the conductive overhanging section extends outwards from the conductive main body, the conductive bridging section is used for connecting the conductive overhanging section and the output pole, meanwhile, an insulating part is arranged on the cross beam, the insulating part and the output pole are arranged at an interval, and the connecting part of the conductive overhanging section and the conductive bridging section is lapped on the insulating part. Compared with the prior art, the battery pack disclosed by the utility model has the advantages that when the module is put into a box, the output pole does not interfere with the copper bar, so that the problem of slow running rhythm of a production line caused by frequent adjustment of the position of the copper bar when the module is put into the box in a traditional assembly mode is solved, and the assembly efficiency of the whole pack is favorably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery package assembly technical field, especially in kind of battery package. BACKGROUND

[0002] In the current new energy automobile industry, with the continuous improvement of user's requirement on the endurance mileage, the continuous increase of battery package energy density promotes the internal structure to be more and more compact. Under this design trend, the layout space of copper bar is greatly compressed, which leads to the difficulty of implementing the traditional assembly process. To solve this problem, most manufacturers adopt the scheme of adjusting the assembly sequence, that is, the copper bar is fixed in the box in advance before the module installation.

[0003] However, due to the space interference between the copper bar connected at the module installation point and the module output pole, the operator has to manually move the copper bar to make room for the module. This physical intervention not only has operation safety hazards, but also significantly increases the assembly difficulty due to the reset stress generated by the elastic deformation of the copper bar. Therefore, in the actual production process, the operation of frequently adjusting the position of the copper bar seriously slows down the production line operation rhythm, and further leads to the decline of the overall assembly efficiency of the battery package. SUMMARY

[0004] Therefore, the utility model aims at providing a battery package to improve the overall assembly efficiency of the battery package.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A battery package, comprising a battery package shell, a battery module and a high-voltage plug-in device arranged in the battery package shell, and a conductive connecting piece connecting the output pole of the high-voltage plug-in device and the battery module;

[0007] The battery package shell is provided with a cross beam and a longitudinal beam arranged in intersection, the output pole is located on the cross beam on one side, and the output pole and the high-voltage plug-in device are arranged on both sides of the battery package shell;

[0008] The conductive connecting piece comprises a conductive main body connected with the high-voltage plug-in device at one end and extending along the longitudinal beam, a conductive overhanging section extending outward along the length direction of the cross beam from the conductive main body, and a conductive cross section connecting the conductive overhanging section and the output pole;

[0009] The cross beam is provided with an insulating piece, the insulating piece and the output pole are arranged in interval along the length direction of the cross beam, and the connecting part of the conductive overhanging section and the conductive cross section is overlapped on the insulating piece.

[0010] Further, the insulating piece is provided with a connecting piece made of conductive material; the connecting parts of the conductive overhanging section and the conductive bridging section are connected in lap joint, and are connected with the connecting piece through the first fastener penetrating through both.

[0011] Further, the insulating piece comprises a horizontal plate embedded with the connecting piece, and a vertical plate arranged in intersection with the horizontal plate; the vertical plate is provided with a first avoiding part for avoiding the conductive overhanging section, and a second avoiding part for avoiding the conductive bridging section.

[0012] Further, the horizontal plate is fixed on the cross beam through the second fastener penetrating through itself.

[0013] Further, a positioning part is arranged between the horizontal plate and the cross beam, and is used for limiting the installation position of the insulating piece on the cross beam.

[0014] Further, the positioning part comprises a positioning protrusion arranged on the horizontal plate, and a positioning groove arranged on the cross beam, and the positioning protrusion is embedded in the positioning groove.

[0015] Further, the connecting piece comprises a sleeve with a threaded hole, and the first fastener comprises a bolt screwed in the threaded hole.

[0016] Further, a rotation stopping structure is arranged between the sleeve and the insulating piece, and is used for preventing the sleeve from rotating relative to the insulating piece around the center of itself.

[0017] Further, an insulating sleeve is arranged on the conductive bridging section, and the insulating sleeve is arranged on the middle part of the conductive bridging section.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The battery pack has the conductive main body, the conductive overhanging section and the conductive bridging section arranged in the insulating piece and the conductive connecting piece on the cross beam, the conductive overhanging section in the conductive connecting piece is connected on the insulating piece in advance when assembling, the conductive overhanging section and the output pole are connected in conduction through the conductive bridging section after the battery module is completed in the box, the connection between the battery module and the high-voltage plug-in part is realized, the problem that the output pole and the conductive overhanging section pre-connected on the output pole are interfered mechanically in the process that the battery module is in the box, and the operator is forced to adjust the position of the conductive overhanging section repeatedly is solved effectively, and the assembling efficiency of the whole battery pack is improved effectively.

[0020] Secondly, by providing the connecting piece of conductive material on the insulating piece, the insulation performance of the main part of the insulating piece is ensured, and a safe electrical connection node is provided. At the same time, the connecting parts of the conductive overhanging section and the conductive cross section are connected in lap joint, and are connected by the first fastener passing through both. Thus, the lap joint of the connecting parts of the conductive overhanging section and the conductive cross section can increase the contact area, ensure the stable conduction between the connecting parts of the conductive overhanging section and the conductive cross section and the connecting piece, and connect the connecting parts of the conductive overhanging section and the conductive cross section and the connecting piece through the first fastener, so as to ensure the reliable connection between the connecting parts of the conductive overhanging section and the conductive cross section and the connecting piece.

[0021] The connecting piece is embedded on the cross plate, which can improve the structural stability and make the connection between the connecting piece and the cross plate more firm. By providing the cross plate and the longitudinal plate arranged intersecting the cross plate, a three-dimensional frame structure can be formed, thereby facilitating the enhancement of the overall mechanical strength of the insulating piece. At the same time, by providing the first and second avoiding parts, the conductive overhanging section and the conductive cross section can be connected to the connecting piece after passing through the longitudinal plate, which is beneficial to optimize the spatial layout, thereby making the overall structure more compact.

[0022] Furthermore, the second fastener is used to fix the cross plate on the cross beam, which facilitates the installation of the cross plate and ensures the stability of the insulating piece. By providing the positioning part, the alignment process between the cross plate and the cross beam can be simplified, and the position of the insulating piece does not need to be adjusted repeatedly. The positioning part is composed of a positioning protrusion and a positioning groove, which is simple in structure and easy to design and implement. The insulating piece is inserted into the positioning groove through the positioning protrusion to constrain the insulating piece, thereby ensuring the accuracy of the installation of the insulating piece.

[0023] By adopting the sleeve structure with a threaded hole, the bolt can be directly fastened in the threaded hole of the sleeve, thereby ensuring the reliable connection between the conductive overhanging section, the conductive cross section and the connecting piece. At the same time, by arranging the threaded hole on the sleeve, the wear problem caused by directly machining the threaded hole on the connecting piece is avoided, and the structural integrity of the connecting piece is effectively protected.

[0024] Moreover, by adding a rotation stopping structure between the sleeve and the insulating piece, the torque generated by the rotation of the bolt during the process of screwing the bolt into the threaded hole can be effectively offset, thereby avoiding the rotation of the sleeve relative to the insulating piece around its axis, and maintaining the stable state of the sleeve. By providing the insulating sleeve, the contact between the conductive cross section and the surrounding metal parts can be avoided, thereby reducing the risk of electric shock. At the same time, the insulating sleeve is sleeved on the middle part of the conductive cross section, which retains the conductive connection function of the exposed parts at both ends and avoids the reduction of heat dissipation efficiency or the conflict of assembly space caused by overall insulation.

[0025] The utility model also provides a vehicle, the vehicle is equipped with the battery pack as above-mentioned.

[0026] The vehicle and the battery pack as above-mentioned have the same beneficial effects compared with prior art, so the same beneficial effects are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings that form part of the utility model serve to provide further understanding of the utility model, and the illustrative embodiment of the utility model and the explanation thereof serve to explain the utility model and do not constitute undue limitation on the utility model.

[0028] Figure 1 It is the assembly schematic view of battery module, high pressure insert and conductive connecting piece in battery pack shell of the utility model embodiment one;

[0029] Figure 2 It is the assembly schematic view of battery module, high pressure insert and conductive connecting piece in battery pack shell of the utility model embodiment one; Figure 1 It is the enlarged view of structure shown in A of the utility model embodiment;

[0030] Figure 3 It is the connection schematic view of conductive connecting piece and insulating piece and output pole of the utility model embodiment one;

[0031] Figure 4 It is the explosion schematic view of insulating piece and crossbeam of the utility model embodiment;

[0032] Figure 5 It is the explosion schematic view of insulating piece and crossbeam of the utility model embodiment; Figure 4 It is the enlarged view of structure shown in B of the utility model embodiment;

[0033] Figure 6 It is the structure schematic view of insulating piece of the utility model embodiment one;

[0034] Figure 7 It is the structure schematic view of output pole of the utility model embodiment one.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 100, battery pack shell;

[0037] 11, battery module; 111, output pole; 1111, screwing portion 1111; 12, high pressure insert; 13, conductive connecting piece; 131, conductive main body; 132, conductive overhanging section; 133, conductive bridging section; 1331, insulating sleeve; 134, connecting position; 14, crossbeam; 15, longitudinal beam;

[0038] 21, insulating piece; 211, connecting piece; 2111, sleeve; 21111, threaded hole; 212, cross plate; 213, longitudinal plate; 2131, first avoiding portion; 2132, second avoiding portion;

[0039] 31, first fastener; 32, second fastener;

[0040] 41, positioning portion; 411, positioning protrusion; 412, positioning groove;

[0041] 51, rotation-stopping structure; 511, tooth structure; 512, tooth groove. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, specific details are set forth such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the application. However, it will be apparent to one skilled in the art that the application can be practiced without these specific details. In other instances, well-known systems, structures, circuits, and techniques have not been shown in detail in order to avoid obscuring the application.

[0044] In the description of the utility model, it should be noted that if the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "outer" appear, it is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, if the terms "first", "second" appear, they are also used for description purposes only and cannot be understood as indicating or implying relative importance.

[0045] Taking the battery pack described in the utility model as an example, the orientation words such as "left, right, front, back" used in the embodiments are defined based on the left-right direction (also called length direction) and the front-back direction (also called width direction) in the state shown in the drawings. Figure 1

[0046] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connector" should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0047] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0048] Embodiment one​

[0049] The embodiment relates to a battery pack, which can solve the problem of interference between a battery module and a copper bar when the battery module is boxed, thereby improving the overall assembly efficiency of the battery pack.

[0050] In terms of overall structure, in combination with the embodiments shown in Figs. 1 to 3, the battery pack of the embodiment comprises a battery pack shell 100, a battery module 11 and a high-voltage plug-in 12 arranged in the battery pack shell 100, and a conductive connecting piece 13 connecting the output pole 111 of the battery module 11 and the high-voltage plug-in 12, and the battery pack shell 100 is provided with a transversely arranged cross beam 14 and a longitudinally arranged longitudinal beam 15, the output pole 111 is arranged on the cross beam 14 at one side, and the output pole 111 and the high-voltage plug-in 12 are arranged on the two sides of the battery pack shell 100. Figure 1 Figure 2 In terms of overall structure, in combination with the embodiments shown in Figs. 1 to 3, the battery pack of the embodiment comprises a battery pack shell 100, a battery module 11 and a high-voltage plug-in 12 arranged in the battery pack shell 100, and a conductive connecting piece 13 connecting the output pole 111 of the battery module 11 and the high-voltage plug-in 12, and the battery pack shell 100 is provided with a transversely arranged cross beam 14 and a longitudinally arranged longitudinal beam 15, the output pole 111 is arranged on the cross beam 14 at one side, and the output pole 111 and the high-voltage plug-in 12 are arranged on the two sides of the battery pack shell 100.

[0051] In terms of overall structure, in combination with the embodiments shown in Figs. 1 to 3, the battery pack of the embodiment comprises a battery pack shell 100, a battery module 11 and a high-voltage plug-in 12 arranged in the battery pack shell 100, and a conductive connecting piece 13 connecting the output pole 111 of the battery module 11 and the high-voltage plug-in 12, and the battery pack shell 100 is provided with a transversely arranged cross beam 14 and a longitudinally arranged longitudinal beam 15, the output pole 111 is arranged on the cross beam 14 at one side, and the output pole 111 and the high-voltage plug-in 12 are arranged on the two sides of the battery pack shell 100.

[0052] It should be noted that in the embodiment, the conductive outer extension segment 132 of the conductive main body 131 extends outward along the length direction of the cross beam 14, and the "outward" of the conductive outer extension segment 132 is the direction away from the conductive main body 131.

[0053] Here, as shown above, through the arrangement of the insulating piece 21 on the cross beam 14 and the conductive main body 131, the conductive outer extension segment 132 and the conductive cross-over segment 133 in the conductive connecting piece 13, the conductive outer extension segment 132 in the conductive connecting piece 13 can be connected to the insulating piece 21 in advance during assembly, and after the battery module 11 is boxed, the conductive outer extension segment 132 and the output pole 111 are connected in conduction through the conductive cross-over segment 133, so as to realize the connection between the battery module 11 and the high-voltage plug-in 12, thereby effectively solving the problem that the output pole 111 and the conductive connecting piece 13 connected to the output pole 111 mechanically interfere with each other during the boxing process of the battery module 11, and the operator is forced to repeatedly adjust the position of the conductive outer extension segment 132, thereby effectively improving the overall assembly efficiency of the battery pack.

[0054] ​It should be noted that the high-voltage plug-in 12 in the embodiment can be set according to the prior art, which can be a high-voltage connector or a high-voltage plug, etc. Meanwhile, the conductive main body 131 in the embodiment can be made of a sheet-shaped copper bar, and the conductive main body 131 and the conductive overhanging segment 132 are integrally formed. Of course, in other embodiments, the conductive main body 131 and the conductive overhanging segment 132 can also be set as a split structure, and when assembling, the conductive main body 131 and the conductive overhanging segment 132 can be connected together by welding, and in addition to the welding method, other common connection forms can also be used.

[0055] In addition, in the specific structure, as shown in Figure 3 The conductive overhanging segment 132 includes a first part arranged along the length direction of the cross beam 14, a second part extending upward from one end of the first part away from the conductive main body 131, and a third part bent from one end of the second part away from the first part to the position of the insulating piece 21, and the third part is provided with an overlapping part in contact with the insulating piece 21.

[0056] In the prior art, after the copper bar is fixed in advance, when the battery module 11 is put into the box, the position of the copper bar will interfere with the output pole 111 on the battery module 11, at which time the copper bar needs to be manually adjusted to complete the battery module 11 into the box.

[0057] And in the specific implementation of the application, one end of the conductive main body 131 is connected to the high-voltage plug-in 12 in advance, then the conductive main body 131 is fixed on the longitudinal beam 15 of the battery pack, and the conductive overhanging segment 132 is overlapped on the insulating piece 21. At this time, since the insulating piece 21 and the output pole 111 are arranged in the length direction of the cross beam 14, the output pole 111 on the battery module 11 will not interfere with the conductive overhanging segment 132 when the battery module 11 is put into the box, so that the operator does not need to adjust the conductive overhanging segment 132 repeatedly, thereby improving the assembly efficiency of the whole battery pack.

[0058] Secondly, after the battery module 11 is completed into the box, the output pole 111 fixedly connected with the battery module 11 can be screwed on the cross beam 14 through a bolt, and then the conductive cross segment 133 is connected between the conductive overhanging segment 132 and the output pole 111 to complete the conduction connection between the battery module 11 and the high-voltage plug-in 12. It should be noted that the connection between the output pole 111 and the battery module 11 in the embodiment can be fixed according to the connection method in the prior art, which will not be described here.

[0059] Based on the above overall introduction, in the embodiment, as a preferred exemplary structure, reference is made to Figure 3 and Figure 6As shown in the figure, the insulating piece 21 is provided with a connecting piece 211 made of conductive material. Here, by providing the connecting piece 211 made of conductive material on the insulating piece 21, the insulating performance of the main body of the insulating piece 21 is ensured, and a safe electrical connection node is provided.

[0060] Meanwhile, the connecting part 134 of the conductive overhanging section 132 and the conductive bridging section 133 is connected in lap joint, and is connected with the connecting piece 211 through the first fastener 31, so that the connecting part 134 of the conductive overhanging section 132 and the conductive bridging section 133 is connected in lap joint to increase the contact area, to ensure the stable conduction between the connecting part 134 of the conductive overhanging section 132 and the conductive bridging section 133 and the connecting piece 211, and to connect the connecting part 134 of the conductive overhanging section 132 and the conductive bridging section 133 and the connecting piece 211 through the first fastener 31, to ensure the reliable connection between the connecting part 134 of the conductive overhanging section 132 and the conductive bridging section 133 and the connecting piece 211.

[0061] It is worth mentioning that the connecting piece 211 in the embodiment can be made of metal material in the prior art, such as copper, aluminum, etc. Of course, other conductive materials can also be selected according to actual needs.

[0062] In the specific structure, the conductive overhanging section 132 and the conductive bridging section 133 are both provided with through holes, and in specific implementation, after the conductive bridging section 133 is lapped on the conductive overhanging section 132, the first fastener 31 is sequentially penetrated through the through holes on the conductive bridging section 133 and the through holes on the conductive overhanging section 132 and then fastened on the connecting piece 211. It is worth mentioning that the first fastener 31 in the embodiment is a fastener product known to those skilled in the art, such as a bolt or a screw.

[0063] In addition, in the embodiment, in order to ensure the structural strength of the insulating piece 21, the connecting piece 211 is provided with a reinforcing plate 214. Figure 6 As shown in the figure, the insulating piece 21 includes a horizontal plate 212 in which the connecting piece 211 is embedded, and a vertical plate 213 arranged intersecting the horizontal plate 212. Here, the connecting piece 211 is embedded in the horizontal plate 212, which can improve the structural stability and make the connection between the connecting piece 211 and the horizontal plate 212 more firm, and by providing the horizontal plate 212 and the vertical plate 213 arranged intersecting the horizontal plate 212, a three-dimensional frame structure is formed, thereby facilitating the enhancement of the overall mechanical strength of the insulating piece 21.

[0064] Meanwhile, the longitudinal plate 213 is provided with a first avoiding portion 2131 for avoiding the conductive overhanging segment 132, and a second avoiding portion 2132 for avoiding the conductive bridging segment 133. Through the arrangement of the first avoiding portion 2131 and the second avoiding portion 2132, the conductive overhanging segment 132 and the conductive bridging segment 133 can be respectively arranged to pass through the longitudinal plate 213 and then be connected to the connecting piece 211, which is conducive to optimizing the spatial layout, so as to make the overall structure more compact.

[0065] In a specific structure, the first avoiding portion 2131 and the second avoiding portion 2132 in the embodiment can be grooves arranged on the longitudinal plate 213. It is worth mentioning that, in order to improve the space utilization rate in the battery pack, the first avoiding portion 2131 is arranged on the longitudinal plate 213 on one side of the width direction of the horizontal plate 212, and the second avoiding portion 2132 is arranged on the longitudinal plate 213 on one side of the length direction of the horizontal plate 212. In this way, the conductive overhanging segment 132 and the conductive bridging segment 133 can be avoided when they are overlapped on the connecting piece 211.

[0066] In addition, considering the stability of the installation of the insulating piece 21, in the embodiment, the horizontal plate 212 is fixed to the cross beam 14 by the second fastener 32 passing through the horizontal plate 212, as shown in Figure 3 and Figure 6 The advantage of this arrangement is that the horizontal plate 212 is fixed to the cross beam 14 by the second fastener 32, which facilitates the installation of the horizontal plate 212 and also ensures the stability of the installation of the insulating piece 21.

[0067] In a specific structure, the cross beam 14 is provided with a through hole for the second fastener 32 to pass through, and the cross beam 14 is provided with a connecting hole corresponding to the through hole, and the second fastener 32 can be fastened in the connecting hole of the cross beam 14 after passing through the horizontal plate 212. It should be noted that the second fastener 32 in the embodiment can be arranged by referring to the existing fastener products, such as bolts, screws, etc.

[0068] In addition, in the embodiment, in order to facilitate the installation of the insulating piece 21, as shown in Figure 4 , a positioning portion 41 is arranged between the horizontal plate 212 and the cross beam 14, and the positioning portion 41 is used to limit the installation position of the insulating piece 21 on the cross beam 14. Here, through the arrangement of the positioning portion 41, the alignment process between the horizontal plate 212 and the cross beam 14 can be simplified, and the operator does not need to repeatedly adjust the position of the insulating piece 21, but can directly complete the rapid installation according to the positioning portion 41, thereby facilitating the improvement of the assembly efficiency.

[0069] Specifically, as shown in Figure 4As shown, the positioning part 41 in this embodiment includes a positioning protrusion 411 on the cross plate 212 and a positioning groove 412 on the cross beam 14, with the positioning protrusion 411 embedded in the positioning groove 412. It can be understood that the positioning part 41, composed of the positioning protrusion 411 and the positioning groove 412, has a simple structure and is easy to design and implement. The insulating member 21 is inserted into the positioning groove 412 through the positioning protrusion 411 to constrain the insulating member 21 and ensure the accuracy of its installation.

[0070] In the specific structure, the positioning protrusion 411 is set at the bottom of the horizontal plate 212, and the shape of the positioning groove 412 is adapted to the shape of the positioning protrusion 411. When installing the insulating component 21, it is only necessary to align the positioning protrusion 411 at the bottom of the horizontal plate 212 with the positioning groove 412 on the crossbeam 14, so that the insulating component 21 is embedded in the positioning groove 412 through the positioning protrusion 411, and then the insulating component 21 is screwed onto the crossbeam 14 by the second fastener 32.

[0071] To be more specific, such as Figure 6 As shown, the connector 211 in this embodiment includes a sleeve 2111 with a threaded hole 21111, and the first fastener 31 includes a bolt screwed into the threaded hole 21111. Therefore, by using a sleeve 2111 with a threaded hole 21111, the bolt can be directly fastened into the threaded hole 21111 of the sleeve 2111, thereby ensuring a reliable connection between the conductive extension section 132, the conductive bridging section 133, and the connector 211. At the same time, providing the threaded hole 21111 on the sleeve 2111 avoids wear problems caused by directly machining the threaded hole 21111 on the connector 211, effectively protecting the structural integrity of the connector 211.

[0072] Furthermore, to ensure a stable connection between the conductive bridging section 133 and the output electrode 111, such as Figure 7 As shown, the output pole 111 is also equipped with a threaded part 1111 with the same structure as the connector 211. During installation, one end of the conductive bridging section 133 is first attached to the conductive extension section 132. The first fastener 31 is used to pass through both and screw into the threaded hole 21111 of the sleeve 2111 to complete the fixation. The other end of the conductive bridging section 133 is attached to the threaded part 1111 of the output pole 111. Another set of bolts is used to pass through the conductive bridging section 133 and screw into the threaded hole 1111 of the threaded part 1111 on the output pole 111 to achieve fastening.

[0073] Furthermore, to ensure the stability of the sleeve 2111, in this embodiment, as follows: Figure 5As shown, an anti-rotation structure 51 is provided between the sleeve 2111 and the insulating member 21. The anti-rotation structure 51 is used to prevent the sleeve 2111 from rotating relative to the insulating member 21 around its own center. Here, by adding an anti-rotation structure 51 between the sleeve 2111 and the insulating member 21, the torque generated by the bolt rotation can be effectively counteracted during the bolt being screwed into the threaded hole 21111, preventing the sleeve 2111 from rotating relative to the insulating member 21 around its axis, thereby maintaining the stable state of the sleeve 2111.

[0074] In the specific structure, the anti-rotation structure 51 of this embodiment includes a plurality of toothed structures 511 arranged at intervals along the axial direction of the sleeve 2111, and toothed grooves 512 formed in the insulating member 21 corresponding to each toothed structure 511, with each toothed structure 511 being engaged in the corresponding toothed groove 512. It is worth mentioning that the aforementioned toothed structures 511 can be configured with reference to gears in the prior art. Furthermore, it should be noted that, as... Figure 7 As shown in the figure, an anti-rotation structure 51 is also provided between the output pole 111 and the screw connection 1111 in this embodiment.

[0075] When the first fastener 31 is tightened, the sleeve 2111 can be engaged in the corresponding tooth groove 512 through the multiple tooth structures 511 on it to counteract the torque generated by the rotation of the first fastener 31, thereby preventing the sleeve 2111 from rotating due to the rotation of the first fastener 31.

[0076] In addition, considering the insulation requirements of conductive bridging section 133, such as Figure 3 As shown in the figure, in this embodiment, an insulating sleeve 1331 is provided on the conductive bridging section 133, and the insulating sleeve 1331 is provided in the middle of the conductive bridging section 133.

[0077] Therefore, by setting the insulating sleeve 1331, it is possible to prevent the conductive bridging section 133 from contacting surrounding metal parts, which could lead to short circuits or leakage, thus reducing the risk of electric shock. At the same time, by placing the insulating sleeve 1331 over the middle of the conductive bridging section 133, the conductive connection function of the exposed ends is preserved, while avoiding a reduction in heat dissipation efficiency due to overall insulation. Furthermore, it is worth noting that both the conductive body 131 and the conductive extension section 132 in this embodiment are fitted with insulating sleeves.

[0078] When the battery pack of the embodiment is assembled, the insulating piece 21 is screwed on the cross beam 14 in advance through the second fastener 32, one end of the conductive main body 131 is connected to the high-voltage plug-in 12, and the conductive main body 131 is fixed on the longitudinal beam 15 through rolling, then the conductive overhanging section 132 extending outward from the conductive main body 131 along the length direction of the cross beam 14 is lapped on the connecting piece 211, at this time, in the length direction of the cross beam 14, the conductive overhanging section 132 and the output pole 111 on the battery module 11 have a certain spacing, and when the battery module 11 is boxed, the output pole 111 and the conductive overhanging section 132 will not interfere with each other.

[0079] Secondly, after the battery module 11 is successfully boxed, the output pole 111 is screwed on the cross beam 14 through a bolt, then one end of the conductive cross section 133 is lapped on the conductive overhanging section 132, and the other end of the conductive cross section 133 is lapped on the output pole 111, at this time, the first fastener 31 is sequentially threaded through the conductive cross section 133 and the conductive overhanging section 132 and then screwed in the threaded hole 21111 of the sleeve 2111, and another group of bolts are threaded through the conductive cross section 133 and then screwed in the screwing part 1111 of the output pole 111, thereby completing the conductive connection between the battery module 11 and the high-voltage plug-in 12.

[0080] As described above, the battery pack of the embodiment can set a spacing between the conductive overhanging section 132 and the output pole 111 when the battery module 11 is boxed, thereby solving the problem that the copper bar connected to the screwing part 1111 of the output pole 111 interferes with the output pole 111 in the traditional assembly method, and the assembly efficiency is low due to manual adjustment of the copper bar, and the structure design is beneficial to improving the overall assembly efficiency of the battery pack.

[0081] Embodiment Two

[0082] The embodiment relates to a vehicle provided with the battery pack in the embodiment one.

[0083] The vehicle of the embodiment applies the battery pack in the embodiment one, sets the insulating piece 21 arranged with a spacing from the output pole 111, laps the conductive overhanging section 132 on the connecting piece 211 of the insulating piece 21 in advance, then laps the conductive cross section 133 between the conductive overhanging section 132 and the output pole 111, so as to realize the conductive connection between the battery module 11 and the high-voltage plug-in 12. Therefore, the problem of low assembly efficiency of the battery pack caused by interference between the battery module 11 and the conductive overhanging section 132 when the battery module 11 is boxed can be solved.

[0084] The above description is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery pack, characterized in that: The device includes a battery pack housing, a battery module and a high-voltage connector disposed within the battery pack housing, and a conductive connector that connects the high-voltage connector and the output terminal of the battery module. The battery pack housing is provided with intersecting crossbeams and longitudinal beams. The output pole is located on one side of the crossbeam, and the output pole and the high voltage plug are respectively placed on both sides of the battery pack housing. The conductive connector includes a conductive body that is connected at one end to the high-voltage plug and extends along the longitudinal beam, a conductive extension that extends outward from the conductive body along the length direction of the crossbeam, and a conductive bridging section that connects the conductive extension and the output electrode. An insulating component is provided on the crossbeam. The insulating component and the output electrode are arranged at intervals along the length of the crossbeam. The connection portion of the conductive extension section and the conductive bridging section overlaps on the insulating component.

2. The battery pack according to claim 1, characterized in that: The insulating component is provided with a connector, which is made of a conductive material; The conductive extension and the conductive bridging section are connected by overlapping at their connection points and are connected to the connector by a first fastener passing through both.

3. The battery pack according to claim 2, characterized in that: The insulating component includes a horizontal plate in which the connector is embedded, and a vertical plate arranged intersecting the horizontal plate; The longitudinal plate is provided with a first clearance portion for avoiding the conductive extension section and a second clearance portion for avoiding the conductive bridging section.

4. The battery pack according to claim 3, characterized in that: The cross plate is secured to the cross beam by a second fastener that passes through itself.

5. The battery pack according to claim 3, characterized in that: A positioning part is provided between the cross plate and the cross beam, and the positioning part is used to define the installation position of the insulating element on the cross beam.

6. The battery pack according to claim 5, characterized in that: The positioning part includes a positioning protrusion on the cross plate and a positioning groove on the cross beam, wherein the positioning protrusion is fitted into the positioning groove.

7. The battery pack according to claim 2, characterized in that: The connector includes a sleeve with a threaded hole, and the first fastener includes a bolt screwed into the threaded hole.

8. The battery pack according to claim 7, characterized in that: An anti-rotation structure is provided between the sleeve and the insulating component, which is used to prevent the sleeve from rotating relative to the insulating component around its own center.

9. The battery pack according to any one of claims 1-8, characterized in that: An insulating sleeve is fitted onto the conductive bridging section, and the insulating sleeve is fitted onto the middle part of the conductive bridging section.

10. A vehicle, characterized in that: The vehicle is equipped with a battery pack as described in any one of claims 1-9.

Images