Output pole fixing assembly, battery pack and vehicle

Abstract

The utility model relates to the technical field of batteries, and discloses an output pole fixing assembly, a battery pack and a vehicle, the output pole fixing assembly comprises a cross beam and at least one output pole base, a plurality of avoiding holes are formed in the cross beam side by side, and at least one adjacent avoiding hole forms a group; each output pole base corresponds to one set of receding holes, the output pole bases are provided with installation positions which are consistent with the receding holes in the corresponding set in number and correspond to the receding holes in a one-to-one mode, the installation positions are provided with fixing structures and limiting structures, the fixing structures are used for fixing the output pole electric connecting pieces, and the limiting structures can limit the fixing structures to the cross beam through the corresponding receding holes. According to the structure, the output electrode base can provide insulation protection and fixing functions for at least one output electrode electric connecting piece, the output electrode electric connecting pieces can be flexibly arranged on the output electrode base with empty installation positions, the installation positions can be matched with the receding holes to be limited to the cross beam, and the structural stability of the output electrode base can be enhanced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of batteries, and particularly relates to an output pole fixing assembly, a battery pack comprising the output pole fixing assembly, and a vehicle comprising the battery pack. BACKGROUND

[0002] At present, inside a battery box, an output pole base structure is generally used to fix an output pole electric connection piece; however, due to the unreasonable design of the structure of the existing output pole base connection limit, when the battery is subjected to vibration and impact, the base structure often shakes relative to the box, which easily causes the connection function of the connecting piece of the base structure to fail, thereby leading to the problem of poor connection stability of the output pole electric connection piece. Therefore, it is necessary to design a new output pole base structure to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide an output pole fixing assembly, a battery pack comprising the output pole fixing assembly, and a vehicle comprising the battery pack, so that the structural stability of the output pole base and the connection stability of the output pole electric connection piece are higher.

[0004] In order to achieve the above-mentioned purpose, one aspect of the present application provides an output pole fixing assembly, comprising a cross beam, a plurality of avoiding holes are arranged side by side on the cross beam, and at least one adjacent avoiding hole constitutes a group; at least one output pole base, each output pole base corresponds to a group of avoiding holes, the output pole base is provided with mounting positions consistent with the number of the corresponding group of avoiding holes and one-to-one correspondence, the mounting position is provided with a fixing structure and a limiting structure, the fixing structure is used to fix an output pole electric connection piece, and the limiting structure is connected with the fixing structure and limits the fixing structure to the cross beam through the corresponding avoiding hole.

[0005] In some embodiments, the cross beam is further provided with an abutting surface, and the plurality of avoiding holes are all arranged on the abutting surface; the limiting structure comprises a sliding part and a limiting surface connected to one side of the sliding part, the sliding part can slide into or out of the corresponding avoiding hole, and the limiting surface limits the depth of the sliding part sliding into the avoiding hole by abutting with the abutting surface.

[0006] In some embodiments, the limiting surfaces of the same output pole base share the same limiting surface.

[0007] In some embodiments, the limiting surface of the same output pole base is configured to cover all avoiding holes of the corresponding group at the orifice of the abutting surface when abutting with the abutting surface.

[0008] In some embodiments, the output pole fixing assembly further comprises at least one locking assembly for keeping the limiting surface in abutment with the abutting surface.

[0009] In some embodiments, the locking assembly comprises a threaded member and a limiting hole and a mounting hole through which the threaded member is sequentially threaded and locked, the limiting hole being formed in the limiting surface, and the mounting hole being formed in the abutting surface.

[0010] In some embodiments, when the sliding portion slides into the avoiding hole, the two side vertical surfaces of the sliding portion are limited by the two side hole walls of the avoiding hole.

[0011] In some embodiments, a clamping assembly is further arranged between the sliding portion and the cross beam, which can be clamped when the limiting surface abuts against the abutting surface.

[0012] In some embodiments, the clamping assembly comprises a clamping portion and a clamping matching portion corresponding to the clamping portion, the clamping portion being arranged on the other side of the sliding portion opposite to the side where the limiting surface is located, and the clamping matching portion being arranged on the cross beam.

[0013] In some embodiments, the cross beam is a hollow beam, further comprising a mounting surface perpendicularly connected to the abutting surface, and each of the avoiding holes extends from the side edge of the abutting surface close to the mounting surface to the inside of the cross beam in a direction perpendicular to the abutting surface and penetrates the mounting surface in a direction perpendicular to the mounting surface; the mounting surface is reserved with a clamping surface at the extension end of each avoiding hole, the clamping matching portion is a cross beam plate segment where the clamping surface is located, and the clamping portion is configured to be two parts located inside and outside the cross beam respectively, and the two parts are arranged on both sides of the cross beam plate segment in a direction perpendicular to the mounting surface.

[0014] In some embodiments, the output pole fixing assembly further comprises a connecting member and a protective cover, the fixing structure comprises a receiving cavity with an opening, the connecting member is configured to fix the output pole electrically connecting piece in the receiving cavity, and the protective cover is detachably arranged on at least part of the opening of the receiving cavity.

[0015] In some embodiments, the receiving cavity has two cavity walls arranged oppositely, and each of the cavity walls is formed with a clamping groove on the inner side surface; the protective cover is provided with two cantilever clamping claws, and the two cantilever clamping claws are respectively located on the opposite sides of the protective cover; the two cantilever clamping claws are inserted into the receiving cavity and are respectively in interference fit with the clamping grooves on the two cavity walls.

[0016] In some embodiments, a notch groove is formed at the open side edge of each of the cavity walls, and the protective cover is provided with a limiting plate on each side of each of the cantilever clamps, and the two limiting plates corresponding to each cantilever clamp can fall into the notch groove and be limited by the opposite two side walls of the notch groove after the cantilever clamps are buckled with the clamping grooves.

[0017] The second aspect of the present application provides a battery pack comprising the output pole fixing assembly.

[0018] The third aspect of the present application provides a vehicle comprising the battery pack.

[0019] According to the above technical solution, the output pole fixing assembly is provided, which comprises a cross beam and at least one output pole base. A plurality of avoiding holes are arranged side by side on the cross beam, and at least one avoiding hole adjacent to each other constitutes a group. Each output pole base corresponds to a group of avoiding holes. The output pole base is provided with a mounting position, and the mounting position corresponds to the avoiding hole of the corresponding group one by one. In this way, at least one output pole base can be fixed on the cross beam, and at least one mounting position can be arranged on the output pole base. Therefore, the output pole base can provide insulation protection and fixing function for at least one output pole connecting piece. The output pole connecting piece can be arranged on the output pole base with the empty mounting position flexibly, and the installation and fixing flexibility is higher. At the same time, the limiting structure in each mounting position of the output pole base can limit the corresponding fixing structure in the avoiding hole of the cross beam. Accordingly, the position of the fixing structure of each mounting position on the cross beam is more stable and reliable, thereby ensuring the stable connection of the output pole connecting piece. Further, if the output pole base has a plurality of mounting positions, the output pole base can be fixed on the cross beam through a plurality of avoiding holes, which helps to enhance the structural stability of the output pole base on the cross beam.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used to explain the embodiments of the present application together with the following specific embodiments, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0022] Figure 1 A perspective view of the output pole fixing assembly provided by at least one embodiment of the present application is shown;

[0023] Figure 2An exploded view of the output pole fixing assembly provided for at least one embodiment of the present application;

[0024] Figure 3 An exploded view of the output pole fixing assembly (without protective cover) provided for at least one embodiment of the present application;

[0025] Figure 4 A perspective view of the crossbeam provided for at least one embodiment of the present application;

[0026] Figure 5 A perspective view of the output pole base provided for at least one embodiment of the present application;

[0027] Figure 6 A front view of the output pole base provided for at least one embodiment of the present application;

[0028] Figure 7 A side view of the output pole base provided for at least one embodiment of the present application;

[0029] Figure 8 A back view of the output pole base provided for at least one embodiment of the present application;

[0030] Figure 9 A side sectional view of the output pole base (after assembly) provided for at least one embodiment of the present application;

[0031] Figure 10 A perspective view of the protective cover provided for at least one embodiment of the present application Figure 1 ;

[0032] Figure 11 A perspective view of the protective cover provided for at least one embodiment of the present application Figure 2 ;

[0033] Figure 12 A front sectional view of the protective cover (after assembly) provided for at least one embodiment of the present application.

[0034] The reference signs are explained as follows:

[0035] 1 crossbeam 10 avoiding hole

[0036] 11 abutting surface 110 mounting hole

[0037] 10a hole wall 12 mounting surface

[0038] 120 clamping surface 121 crossbeam plate segment

[0039] 2 output pole base 21 mounting position

[0040] 22 fixing structure 23 limiting structure

[0041] 231 sliding part 232 limiting surface

[0042] 230 limiting hole 231a vertical surface

[0043] 220 accommodating cavity 221 connecting piece

[0044] 222 protective cover 22a cavity wall

[0045] 20 clamping groove 2221 cantilever clamping jaw

[0046] 2220 limiting plate 200 gap groove

[0047] 3 output pole electric connection piece 41 threaded part

[0048] 4 locking assembly 51 clamping part

[0049] 5 clamping assembly 52 clamping matching part

[0050] A reinforcing rib DETAILED DESCRIPTION

[0051] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0052] Figures 1 to 3 The structural schematic diagram of the output pole fixing assembly provided by at least one embodiment of the present application is shown.

[0053] In combination with the drawings, the application provides an output pole fixing assembly which can be used to fix and insulate the output pole electric connecting piece 3, wherein the output pole electric connecting piece 3 includes but is not limited to an output pole aluminum bar, a high-voltage copper bar and the like. The output pole fixing assembly can include a cross beam 1 and at least one output pole base 2, and the at least one output pole base 2 can be fixedly installed on the cross beam 1. In the drawings, only one output pole base 2 is shown to be installed on the cross beam 1. A plurality of avoiding holes 10 can be arranged side by side on the cross beam 1, and at least one avoiding hole 10 adjacent to each other constitutes a group. Each output pole base 2 is arranged on the cross beam 1, and each output pole base 2 corresponds to a group of avoiding holes 10. The output pole base 2 is provided with mounting positions 21 which are consistent with and one-to-one corresponding to the number of the corresponding group of avoiding holes 10. It can be understood that each output pole base 2 can be provided with at least one mounting position 21, and at least one avoiding hole 10. The mounting position 21 corresponds to the avoiding hole 10 one-to-one, and the number of each group of avoiding holes 10 can be determined according to the number of mounting positions 21 on the output pole base 2. The mounting position 21 is provided with a fixing structure 22 and a limiting structure 23. The fixing structure 22 is used to fix the output pole electric connecting piece 3, and the limiting structure 23 is connected to the fixing structure 22 and limits the fixing structure 22 to the cross beam 1 through the corresponding avoiding hole 10. It should be explained that the avoiding hole 10 corresponding to the limiting structure 23, i.e. the avoiding hole 10 corresponding to the mounting position 21 where the limiting structure 23 is located.

[0054] By setting an output pole fixing assembly, including a cross beam 1 and at least one output pole base 2, a plurality of avoiding holes 10 are arranged side by side on the cross beam 1, and at least one avoiding hole 10 adjacent to each other constitutes a group. Each output pole base 2 corresponds to a group of avoiding holes 10. The output pole base 2 is provided with mounting positions 21 which are consistent with and one-to-one corresponding to the number of the corresponding group of avoiding holes 10. In this way, at least one output pole base 2 can be fixed on the cross beam 1, and at least one mounting position 21 can be provided on the output pole base 2, so that the output pole base 2 can provide insulation protection and fixing function for at least one output pole electric connecting piece 3. The output pole electric connecting piece 3 can be flexibly arranged on the output pole base 2 with empty mounting positions 21, so that the installation and fixing flexibility is higher. At the same time, the limiting structure 23 in each mounting position 21 on the output pole base 2 can limit the corresponding fixing structure 22 to the cross beam 1 through one avoiding hole 10. Accordingly, the position of the fixing structure 22 of each mounting position 21 on the cross beam 1 is more stable and reliable, thereby ensuring the stable connection of the output pole electric connecting piece 3. Further, if one output pole base 2 has a plurality of mounting positions 21, the output pole base 2 can be fixed on the cross beam 1 through a plurality of avoiding holes 10. This structure also helps to enhance the structural stability of the output pole base 2 as a whole on the cross beam 1.

[0055] Figures 4 to 9 The structure schematic diagram of the cross beam 1 and the output pole fixing assembly provided by at least one embodiment of the application is shown.

[0056] As shown in Figure 4 , the cross beam 1 can be provided as a long strip-shaped plate structure, for the convenience of the description of the scheme, the thickness direction of the cross beam 1 can be taken as the x direction in the figure; the length direction of the cross beam 1 (the extension direction of the cross beam 1) can be taken as the y direction in the figure; and the width direction of the cross beam 1 can be taken as the z direction in the figure.

[0057] The limiting structure 23 in the foregoing can limit the fixed structure 22 to the cross beam 1 through the corresponding avoiding hole 10, and the limiting structure 23 and the corresponding avoiding hole 10 can be connected through various connection structures, such as threaded connection, buckle connection, interference fit connection, and adhesion, and in order to improve the stability of the structure connection, the following embodiments of the present application further introduce how the limiting structure 23 and the corresponding avoiding hole 10 can be connected.

[0058] In some embodiments, as shown in Figure 4 , the cross beam 1 is further provided with an abutting surface 11, and the plurality of avoiding holes 10 are all arranged on the abutting surface 11; the limiting structure 23 comprises a sliding part 231 (as shown in Figure 5 ) and a limiting surface 232 (as shown in Figure 7 and Figure 8 ) connected to one side of the sliding part 231, the sliding part 231 can slide into or out of the corresponding avoiding hole 10, and the limiting surface 232 can limit the depth of the sliding part 231 sliding into the avoiding hole 10 by abutting against the abutting surface 11, so that the cooperation of the limiting surface 232 and the abutting surface 11 can stably limit the position of the sliding part 231 in the x direction of the cross beam 1.

[0059] In some embodiments, as shown in Figure 8 , the limiting structures 23 of the same output pole base 2 share the same limiting surface 232, so that the limiting of the plurality of limiting structures 23 in the x direction of the cross beam 1 has the same limiting reference, and the overall structure of the output pole base 2 is more stable; at the same time, the same limiting surface 232 also makes the overall structure of the output pole base 2 with the plurality of limiting structures 23 better, and facilitates mass production.

[0060] In some embodiments, the limiting surface 232 of the same output pole base 2 is configured to cover all the avoiding holes 10 of the corresponding group on the hole opening of the abutting surface 11 when abutting against the abutting surface 11, and the limiting surface 232 structure can be used to shield the assembly gap between the output pole base 2 and the cross beam 1, and prevent aluminum chips from falling out; in a specific embodiment, there are residual aluminum chips in the cross beam 1 during processing, and if the two ends of the cross beam 1 are blocked by a rubber plug, the only way for the aluminum chips to be discharged is the position of the avoiding hole 10 of the cross beam 1, and the limiting surface 232 structure can effectively block the avoiding hole 10 of the cross beam 1, thereby preventing the aluminum chips from falling out.

[0061] In some embodiments, as shown inFigure 2 As shown, the output pole fixing assembly further comprises at least one locking assembly 4 for keeping the limiting surface 232 in abutment with the abutment surface 11, and the number of locking assemblies 4 shown in the figure is two, and the two locking assemblies 4 are arranged in the y direction of the cross beam 1, of course, the number of locking assemblies 4 can also be three, and the three locking assemblies are arranged in a triangular shape. The specific number and arrangement of the locking assemblies 4 are not uniquely limited here, as long as the limiting surface 232 can keep in abutment with the abutment surface 11 after assembly to achieve reliable limiting.

[0062] In some embodiments, as shown in Figure 3 As shown, the locking assembly 4 comprises a threaded part 41, a limiting hole 230 and a mounting hole 110 through which the threaded part 41 is sequentially arranged and locked, the limiting hole 230 is formed in the limiting surface 232, and the mounting hole 110 is formed in the abutment surface 11; this structure is convenient to process and reliable in connection, and by arranging the limiting surface 232 to be in close contact with the abutment surface 11 and combining the locking assembly 4, the position of the limiting structure 23 in the x direction of the cross beam 1 can be effectively limited, and when the expansion force of the battery module is too large, this limiting method can make the output pole base 2 slightly displace in the x direction of the cross beam 1 to relieve the stress of the output pole; it is worth mentioning that by arranging the locking assembly 4, the position of the limiting structure 23 in the z direction of the cross beam 1 can also be limited. In addition, the threaded part 41 can be selected as a plastic expansion screw, of course, it can also be other connecting components, which are not uniquely limited here.

[0063] In some embodiments, please refer to Figure 4 and Figure 5 When the sliding part 231 slides into the avoiding hole 10, the two side vertical surfaces 231a thereof are limited by the two side hole walls 10a of the avoiding hole 10, as shown in Figure 4 As shown, the avoiding hole 10 has a hole wall 10a on the left and right for limiting, and when the sliding part 231 slides into the avoiding hole 10, the left and right vertical surfaces 231a thereof can be limited by the left and right hole walls 10a of the avoiding hole 10, and the two can be arranged as a clearance fit to facilitate the sliding part 231 to slide into or out of the avoiding hole 10; this structure is reasonably arranged and can be used to limit the position of the sliding part 231 in the y direction of the cross beam 1.

[0064] In some embodiments, the sliding part 231 and the cross beam 1 are further provided with a clamping assembly 5 capable of clamping when the limiting surface 232 and the abutment surface 11 are in abutment; by arranging the clamping assembly 5, the connection stability between the sliding part 231 and the cross beam 1 can be further improved.

[0065] In some specific embodiments, the above-mentioned clamping assembly 5 can comprise a clamping part 51 and a clamping matching part 52 corresponding to the clamping part 51, the clamping part 51 is arranged on the other side of the sliding part 231 opposite to the side where the limiting surface 232 is located, and the clamping matching part 52 is arranged on the cross beam 1.

[0066] In some more specific embodiments, please refer to Figure 4 、 Figures 7 to 9 , the crossbeam 1 can be provided as a hollow beam, the internal hollow can reduce the material, reduce the weight, facilitate transportation and assembly, and facilitate the processing of the avoidance hole 10 and the connection with the limiting structure 23. Among them, the crossbeam 1 also has a mounting surface 12 connected perpendicularly to the abutting surface 11, and a plurality of avoidance holes 10 are extended to the inside of the crossbeam 1 along the direction perpendicular to the abutting surface 11 (x direction in Figure 4 ) from the edge of the side of the abutting surface 11 close to the mounting surface 12, and penetrate the mounting surface 12 along the direction perpendicular to the mounting surface 12 (z direction in Figure 4 ); the mounting surface 12 is respectively reserved with a clamping surface 120 at the extension end of each avoidance hole 10, the clamping fitting part 52 is a crossbeam plate segment 121 where the clamping surface 120 is located, the clamping part 51 is configured to be able to be located in two parts inside and outside the crossbeam 1, and the two parts are clamped on both sides of the crossbeam plate segment 121 in the direction perpendicular to the mounting surface 12 (as shown in Figure 9 ), wherein the two parts and the two sides of the crossbeam plate segment 121 can be gap fit, or interference fit or transition fit; this structure is easy to process and can reliably limit the position of the limiting structure 23 (or the sliding part 231) in the z direction of the crossbeam 1; further, the clamping part 51 is clamped with the clamping fitting part 52 on the crossbeam 1, which can assist in z direction limiting while ensuring that the output pole base 2 will not form a similar cantilever beam structure when subjected to vibration impact, thereby ensuring the reliability of the structure.

[0067] Figures 10 to 12 The structure of the protective cover 222 provided by at least one embodiment of the present application is shown.

[0068] In some embodiments, the output pole fixing assembly further includes a connecting piece 221 and a protective cover 222, and the fixing structure 22 includes a containing cavity 220 with an opening, which can be provided as a one-side opening similar to the opening of a water cup cavity, or as a two-side opening (top opening and front opening) as shown in Figure 5 , of course, it can also be provided in other forms as long as it does not affect the fixation of the output pole electric connecting piece 3 and the protective cover 222. The connecting piece 221 is used to fix the output pole electric connecting piece 3 in the containing cavity 220, which can be selected as a screw or bolt structure, of course, it can also be other connecting components, and the connecting piece 221 can be connected and fixed by sequentially penetrating the through hole of the output pole electric connecting piece 3 and the positioning hole at the bottom of the containing cavity 220. For details, please refer to Figure 2 Each mounting position 21 of each output pole base 2 can be used to mount, for example Figure 2The two output electrode connecting pieces 3 shown can be arranged one above the other inside the receiving cavity 220. The connector 221 passes through the through holes on the two output electrode connecting pieces 3 in sequence along the path shown by the dotted line, and then falls into the positioning hole at the bottom of the receiving cavity 220. After the two output electrode connecting pieces 3 are installed, as shown... Figure 1 The mounting position on the left is shown (see attached image). Figure 2 In the example shown, the left output electrode connecting piece 3 can be an output electrode aluminum bar, and the right output electrode connecting piece 3 can be a high-voltage copper busbar (after installation in the receiving cavity 220, the high-voltage copper busbar can be located above the output electrode aluminum bar). This structure helps to reliably fix the output electrode connecting piece 3. The protective cover 222 is detachably installed over at least a portion of the open area of ​​the receiving cavity 220. The detachable form can be threaded connection, snap-fit, adhesive, etc., and is not limited here; in one specific embodiment, such as Figure 1 As shown, except for the area through which the output electrode passes, the rest of the opening can be covered by the protective cover 222 to maximize the protective effect of the protective cover 222. Optionally, the protective cover 222 can be provided with a curved protective surface, such as... Figure 10 As shown, the protective surface can effectively shield the exposed area after the output electrode is assembled, in order to meet the IPXXB protection level requirements of high-voltage connections; in some embodiments, such as Figure 11 As shown, the protective surface can be designed with reinforcing ribs A that extend to the top surface of the protective cover 222. By setting reinforcing ribs A, the problem of excessive deformation caused by injection molding of parts can be effectively reduced.

[0069] In some implementations, such as Figure 12 As shown, the accommodating cavity 220 has two opposing cavity walls 22a, each cavity wall 22a having a slot 20 formed on its inner side. The protective cover 222 has two cantilever claws 2221, located on opposite sides of the protective cover 222. Each cantilever claw 2221 has a snap-fit ​​structure that engages with the slot 20. The two cantilever claws 2221 extend into the accommodating cavity 220 and respectively engage with the slots 20 on the two cavity walls 22a. The interference fit can be understood as... Yes, the difference between the width between the slots 20 on the two cavity walls 22a and the width between the two cantilever claws 2221 is negative. Thus, the latches of the cantilever claws 2221 can have an interference fit with the slots 20 in the y-direction of the beam 1. Specifically, the output electrode base 2 can be made as a one-piece injection molded part, including but not limited to PBT-GF20 and PBT-GF30 materials. In this case, the two cavity walls 22a can use the springback characteristics of the injection molded part itself to limit the protective cover 222 in the y-direction. Simultaneously, by setting the cantilever claws 2221 to cooperate with the slots 20 on the output electrode base 2, the protective cover 222 can also be limited in the z-direction. For example... Figure 11As shown, the inner side of the cantilever clamping jaw 2221 can also be provided with a reinforcing rib A, thereby reducing the deformation amount during molding, improving the strength of the body, avoiding deformation and fracture during installation, and reducing the damage rate.

[0070] In some embodiments, referring to Figure 10 and Figure 11 a notch groove 200 is formed at the open side edge of each cavity wall 22a, and the protective cover 222 is provided with a limiting plate 2220 on both sides of each cantilever clamping jaw 2221, and the two limiting plates 2220 corresponding to each cantilever clamping jaw 2221 can fall into the notch groove 200 and cooperate with the opposite two side walls of the notch groove 200 to limit the protective cover 222 after the cantilever clamping jaw 2221 is buckled into the accommodating cavity 220 and the clamping groove 20. The structure can limit the protective cover 222 in the x direction by cooperating the two limiting plates 2220 corresponding to the cantilever clamping jaw 2221 with the notch groove 200 on the protective cover 222. In an alternative embodiment, the single-side reserved gap between the two limiting plates 2220 and the notch groove 200 can be 0.1-0.2mm.

[0071] In some embodiments, the bottom of each cantilever clamping jaw 2221 and the bottom of the two limiting plates 2220 corresponding to the cantilever clamping jaw 2221 can be designed with an inclined angle, thereby providing a certain guiding function when the protective cover 222 is assembled from top to bottom to the output pole base 2.

[0072] As a summary, when the battery system is in a vibration impact working condition, the output pole base 2 in the above-mentioned embodiments has no traditional fixed clamping jaw structure, and is fixed firmly in the x, y and z directions, so that the reliability can be improved; the protective cover 222 meets the IPXXB design requirements through the above-mentioned structural design, and further improves the stability and reliability during assembly and use.

[0073] In some embodiments, the assembly process of the output pole fixing assembly proposed in the present application can be: first, the output pole base 2 is clamped to the cross beam 1, then it is fixed to the cross beam 1 through the threaded part 41, then the output pole aluminum bar and the high-voltage copper bar are placed in the respective mounting positions 21 of the output pole base 2, then the output pole aluminum bar and the high-voltage copper bar are respectively installed and fixed in the output pole base 2 through the connecting part 221, and finally the protective cover 222 is fixed to the output pole base 2 in the form of clamping, thereby completing the assembly.

[0074] The second aspect of the present application provides a battery pack comprising the above-mentioned output pole fixing assembly. The third aspect of the present application provides a vehicle comprising the above-mentioned battery pack. By providing the battery pack and the vehicle comprising the above-mentioned output pole fixing assembly, the stability and reliability of the structure can be improved, and the cost of maintenance and repair can be reduced.

[0075] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0076] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise clearly and specifically limited.

[0077] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples, without contradiction.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as a limitation on the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An output pole fixing assembly, characterized by, The output electrode fixing assembly comprises: a beam, a plurality of escape holes being arranged side by side on the beam, at least one adjacent escape hole constituting a group; at least one output electrode base, each output electrode base corresponding to a group of escape holes, the output electrode base being provided with mounting positions consistent with and corresponding to the number of escape holes in the corresponding group, the mounting positions being provided with a fixing structure and a limiting structure, the fixing structure being used for fixing an output electrode connecting sheet, and the limiting structure being connected with the fixing structure and limiting the fixing structure in the beam through the corresponding escape hole.

2. The output fixed assembly according to claim 1, wherein The beam is further provided with an abutting surface, and the plurality of escape holes are all arranged on the abutting surface. The limiting structure comprises a sliding part and a limiting surface connected to one side of the sliding part, the sliding part being capable of sliding into or out of the corresponding escape hole, and the limiting surface being capable of limiting the depth of the sliding part sliding into the escape hole by abutting against the abutting surface.

3. The output fixed assembly according to claim 2, wherein The limiting surfaces of the same output electrode base share the same limiting surface.

4. The output fixed assembly according to claim 3, wherein When the limiting surface of the same output electrode base abuts against the abutting surface, it is capable of covering all the escape holes of the corresponding group on the hole opening of the abutting surface.

5. The output fixed assembly of claim 2, wherein The output electrode fixing assembly further comprises at least one locking assembly, which is used for keeping the limiting surface abutting against the abutting surface.

6. The output fixed assembly according to claim 5, wherein The locking assembly comprises a threaded part and a limiting hole and a mounting hole through which the threaded part is sequentially arranged and locked, the limiting hole being formed in the limiting surface, and the mounting hole being formed in the abutting surface.

7. The output fixed assembly of claim 2, wherein When the sliding part slides into the escape hole, the two side vertical surfaces of the sliding part are limited by the two side hole walls of the escape hole.

8. The output pole fixing assembly according to any one of claims 2-7, characterized in that, A clamping assembly is further arranged between the sliding part and the beam, and the clamping assembly is capable of clamping when the limiting surface abuts against the abutting surface.

9. The output fixed assembly according to claim 8, wherein The clamping assembly comprises a clamping part and a clamping matching part corresponding to the clamping part, the clamping part being arranged on the other side of the sliding part opposite to the side where the limiting surface is arranged, and the clamping matching part being arranged on the beam.

10. The output pole fixed assembly of claim 9, wherein, The beam is a hollow beam, further comprising a mounting surface perpendicularly connected with the abutting surface, the plurality of escape holes all extending to the inside of the beam along a direction perpendicular to the abutting surface from the side edge of the abutting surface close to the mounting surface and penetrating through the mounting surface along a direction perpendicular to the mounting surface, the mounting surface being provided with a clamping surface at the extension end of each escape hole, the clamping matching part being a beam plate segment where the clamping surface is arranged, and the clamping part being arranged in two parts inside and outside the beam respectively, and the two parts being arranged on both sides of the beam plate segment in a direction perpendicular to the mounting surface.

11. The output pole fixing assembly according to any one of claims 1-7, wherein The output electrode fixing assembly further comprises a connecting part and a protective cover, the fixing structure comprising a containing cavity with an opening, the connecting part being arranged to fix the output electrode connecting sheet in the containing cavity, and the protective cover being detachably arranged on at least part of the opening of the containing cavity.

12. The output pole fixed assembly of claim 11, wherein, The accommodating cavity has two cavity walls arranged oppositely, and each cavity wall is formed with a clamping groove on the inner side thereof; the protective cover is provided with two cantilever clamping claws arranged on opposite sides of the protective cover respectively; the two cantilever clamping claws extend into the accommodating cavity and are in interference buckling with the clamping grooves on the two cavity walls respectively.

13. The output pole fixed assembly of claim 12, wherein, Each cavity wall is formed with a notch groove at the open side edge thereof, and the protective cover is provided with a limiting plate on each side of each cantilever clamping claw; after the two limiting plates corresponding to each cantilever clamping claw are buckled with the clamping grooves in the accommodating cavity, the two limiting plates can fall into the notch groove and are limited by the opposite side walls of the notch groove.

14. A battery pack, characterized by The output pole fixing assembly according to any one of claims 1-13.

15. A vehicle characterized by comprising: The battery pack according to claim 14.

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