Output pole mounting seat and battery pack

Abstract

The utility model provides an output electrode mounting seat and a battery pack. The output pole mounting seat comprises a base, a covering piece and a connecting part, wherein the output pole is abutted against the base; the covering piece covers the top of the base so as to form insulation protection for the output pole; the connecting part extends from the base to the covering piece and is detachably connected with the covering piece to limit the covering piece; the plurality of connecting parts are distributed on different side edges of the base; and at least one mounting channel is formed between the connecting parts, so that the output pole can be close to or far away from the base along the mounting channel and does not collide with the connecting parts. The mounting base can effectively reduce collision between the mounting base and the output electrode of the battery pack in the hoisting process, and has the advantages of being good in protection performance and high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack electrode mounting structures, and in particular to an output electrode mounting seat. The utility model also relates to a battery pack comprising the output electrode mounting seat. Background Art

[0002] In order to respond to the carbon peak and achieve the carbon neutrality goal, new energy vehicle related technologies have made great progress and development in recent years and have received more and more attention. As an important component that directly affects the range, power performance and safety performance of new energy vehicles, the requirements for battery packs on their energy density, space occupancy, structural strength and other performance have also risen with the high-end use demand and the enrichment of use scenarios.

[0003] The output pole is the bridge for energy exchange between the battery cell module inside the battery pack and the outside world. The electric energy of the battery cell is transmitted to the output pole through the bus, and then transmitted from the output pole to the vehicle motor or other electrical equipment, thereby realizing the energy supply of the battery pack to the vehicle. Since the output pole is usually made of copper material with high electrical conductivity, its texture is relatively soft and it is easy to twist and deform with the bumps and shakes of the vehicle.

[0004] In the prior art, there are related documents reporting on the technical solution of providing a mounting seat at the output pole installation of the battery pack. The mounting seat is used to limit the output pole of the battery pack to prevent it from twisting and deformation. However, for the sake of electrical safety, such a mounting seat usually wraps and covers the exposed metal part of the output pole of the battery pack to meet the IPXXB sealing protection requirements. For a battery pack using a mounting seat with the above structure, the lifting accuracy requirement during assembly is at the millimeter level, and there is an installation gap between the visual recognition positioning module used in the existing mechanical suction cup for lifting the battery pack and the battery pack, which cannot meet the lifting accuracy requirements. During the process of lifting the battery cell into the box, the output pole is prone to collision with the mounting seat. Utility Model Content

[0005] In view of this, the utility model aims to propose an output pole mounting seat, which can reduce the collision between the mounting seat and the output pole of the battery pack during the lifting process, has good structural stability and electrical safety, and can reduce the possibility of torsional deformation of the output pole of the battery pack.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] The utility model discloses an output pole mounting seat, comprising:

[0008] A base, wherein the output pole abuts against the base;

[0009] A cover member, which is buckled on the top of the base to provide insulation protection for the output pole;

[0010] A connecting portion, extending from the base toward the covering member, and detachably connected to the covering member to form a position limit for the covering member;

[0011] The connecting parts are arranged to be multiple and distributed on different sides of the base; at least one installation channel is formed between the connecting parts, so that the output pole can approach or move away from the base along the installation channel without colliding with the connecting parts.

[0012] Furthermore, the base comprises:

[0013] A bottom plate, the output pole abutting against an upper surface of the bottom plate;

[0014] A limiting column, fixedly arranged on the lower surface of the bottom plate;

[0015] The insert nut is arranged on the base plate and the limiting column through the height direction.

[0016] Furthermore, the bottom plate is provided with weight-reducing holes along the height direction, and the weight-reducing holes are arranged to be a plurality of holes evenly distributed in the circumferential direction of the outer side of the insert nut.

[0017] Furthermore, the outer surface of the insert nut is provided with knurled ridges, and a groove fitting therewith is provided at a position on the bottom plate that cooperates with the knurled ridges.

[0018] Furthermore, the limiting column is constructed into a columnar shape with a waist-shaped cross section.

[0019] Furthermore, the connecting portion is provided with a clamping block, and the covering member is provided with a buckle; or,

[0020] The connecting part is provided with a buckle, and the covering member is provided with a clamping block;

[0021] The buckle sleeve is arranged on the clamping block to form a limit position of the connecting portion on the covering member.

[0022] Furthermore, the edge of one side of the buckle close to the clamping block is rounded; and / or,

[0023] The edge of one side of the clamping block close to the buckle is rounded.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] The output pole mounting seat described in the utility model includes a base, a cover and a connecting part. Among them, the base plays a role of fixing and limiting the output pole, which can reduce the possibility of torsion deformation of the output pole. The cover that can be detachably covered and buckled on the mounting seat forms an insulating protection structure for the output pole, so that the battery pack can meet the sealing protection requirements for equipment and personnel. The connecting part fixed on the base and extended from the base to the cover plays a limiting role on the cover. By setting the connecting part as a plurality of parts distributed on different sides of the base, the stability of the supporting structure of the cover by the connecting part can be improved. By forming at least one installation channel between the connecting parts, the output pole can be translated along the installation channel to approach the base or be pulled away from the base. Even if the hoisting accuracy of the existing mechanical suction cup cannot meet the requirements of direct installation, the battery cell module can be hoisted on one side of the mounting seat by means of staggered installation, and then the battery cell module can be pushed to make the output pole approach the mounting seat along the installation channel, thereby achieving the purpose of the invention of reducing the collision between the output pole and the mounting seat.

[0026] In addition, the base includes a bottom plate, a limiting column and an insert nut. The bottom plate supports the output pole and provides a limit for the installation of the limiting column and the insert nut; the limiting column is formed on the lower surface of the bottom plate, and can connect the base to the crossbeam of the battery pack; the insert nut that runs through the bottom plate and the limiting column provides an installation position for the fastening bolts used to fix the output pole and the base.

[0027] Secondly, by providing weight-reducing holes on the bottom plate, the weight of the base can be reduced without significantly affecting the structural strength. By providing knurled convex ridges on the outer surface of the insert nut, the possibility of misalignment and twisting between the insert nut and the base can be further reduced. By constructing the limit column as a column with a waist-shaped cross section, the limit column and the crossbeam can be limited along their own circumferential direction.

[0028] Furthermore, by providing a structure in which a buckle and a block cooperate between the connection part and the cover, a limiting structure is formed between the connection part and the cover, and the installation process of the cover is simplified. By rounding the edges of the buckle and the block that are close to each other, the smoothness of the buckle being installed and connected to the block can be improved.

[0029] In addition, the utility model also proposes a battery pack provided with the output pole mounting seat as described above, further comprising:

[0030] A crossbeam is provided with a mounting hole, and the length of the mounting hole is longer than the cross-sectional length of the limiting column.

[0031] Furthermore, the mounting hole is opened on a side of the top surface of the beam away from the center of the battery pack, so that the distance between the edge of the projection of the base inserted in the mounting hole onto the top surface of the beam and the edge of the beam is not less than 2 mm.

[0032] Furthermore, the battery pack also includes an extended copper bar, one end of which is electrically connected to the output pole, and the other end of which extends to the outside of the beam.

[0033] The mounting seat of the battery pack described in the present invention has the same beneficial effects as the output pole mounting seat described above relative to the prior art, and will not be described in detail here.

[0034] The battery pack of the utility model also includes a crossbeam. The crossbeam is provided to fix and limit the battery cell module of the battery pack, and the mounting hole provided on the crossbeam reserves space for the positioning and installation of the mounting seat. By providing the mounting hole as a through hole provided on the crossbeam with a length longer than the cross-sectional length of the limiting column, the mounting seat can move along the length direction of the mounting hole, thereby avoiding interference and collision when the module is put into the box.

[0035] In addition, the mounting hole is opened on the side of the top surface of the beam away from the center of the battery pack, so that the distance between the edge of the projection of the base inserted in the mounting hole to the top surface of the beam and the edge of the beam is not less than 2 mm. By adopting the above arrangement, there is an installation margin of not less than 2 mm between the mounting seat and the battery cell module, thereby eliminating the influence of processing errors caused by thermal deformation of beam welding on assembly.

[0036] Secondly, by extending the copper busbar, the output pole inside the mounting base can be electrically connected to the BDU component of the battery pack, so that the BDU component can control the on and off of the battery cell module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of the structure of the output pole mounting seat in the embodiment of the present application;

[0039] Figure 2 This is a schematic diagram of the structure of the base in the embodiment of the present application;

[0040] Figure 3 This is a schematic diagram of the explosion structure of the battery pack according to an embodiment of the present application.

[0041] Description of reference numerals:

[0042] 1. Output pole;

[0043] 2. Base;

[0044] 201, bottom plate; 202, limiting column; 203, insert nut;

[0045] 2011, weight-reducing holes; 2031, knurled convex edges;

[0046] 3. Covering piece; 4. Connecting part; 5. Mounting channel; 6. Block; 7. Buckle;

[0047] 8. Beam;

[0048] 801, mounting hole;

[0049] 9. Extend the copper busbar. DETAILED DESCRIPTION

[0050] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0051] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] Taking the output pole mounting seat and battery pack described in the utility model as an example, the directional words such as "up, down, left, right, front, and back" used in the embodiments are defined based on the up and down direction (also called the height direction, or the Z direction of the battery pack), the left and right direction (also called the width direction, or the Y direction of the battery pack), and the front and back direction (also called the length direction, or the X direction of the battery pack). "Inside and outside" are defined based on the contour of the corresponding parts. For example, "inside" and "outside" are defined based on the contour of the battery pack, and the side of the battery pack contour close to the middle of the battery pack is "inside", and the opposite is "outside".

[0053] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0054] The following will refer to the attached Figures 1 to 3 The utility model is described in detail in conjunction with the embodiments.

[0055] Embodiment 1

[0056] The present embodiment relates to an output pole mounting seat, which adopts a base 2 and a cover 3 that can be detachably buckled on the base 2 to form a wrapped insulating protective structure to improve the electrical safety of the battery pack and meet the sealing protection requirements for personnel and equipment. By arranging a connecting portion 4 on the base 2, the cover 3 is limited and fixed, and by arranging the connecting portions 4 on multiple different sides of the base 2, and forming an installation channel 5 for translationally installing the output pole 1 between the connecting portions 4, the purpose of the invention of reducing the collision between the mounting seat and the output pole 1 is achieved.

[0057] In terms of overall structure, refer to Figure 1 , Figure 2 and Figure 3 The output pole mounting seat of this embodiment includes a base 2, a cover 3 and a connecting portion 4. Among them, the output pole 1 is abutted and fixed on the base 2 by the limiting effect of the fastening bolts. The cover 3 is buckled on the top of the base 2, and a plurality of connecting portions 4 are formed by extending from the base 2 to the cover 3. One end of the connecting portion 4 is fixedly arranged with the base 2, and the other end is detachably connected with the connecting portion 4 to form a position limit and maintenance of the cover 3. The number of connecting portions 4 is set to be multiple, and in order to improve the position stability between the connecting portion 4 and the cover 3, the connecting portion 4 is set to be distributed on different sides of the base 2. Since the connecting portion 4 limits the cover 3 in multiple directions, the purpose of improving the position stability between the connecting portion 4 and the cover 3 is achieved. The cross-section of the base 2 in the embodiment of the present application is rectangular, and the number of connecting portions 4 is three, which are constructed as columns distributed at the four corners of the upper surface of the base 2. The portion of the upper surface of the base 2 where the connection portion 4 is not provided and the empty area formed by the other two adjacent connection portions 4 is the installation channel 5. The installation channel 5 is provided so that the output pole 1 can approach or move away from the center of the base 2 along the length direction or width direction of the base 2, thereby avoiding the collision between the battery cell module and the mounting seat that may occur in direct lifting.

[0058] As set above, in the process of using the mechanical suction cup to hoist the battery module, although the accuracy of the visual recognition positioning module of the existing mechanical suction cup cannot meet the assembly requirements of direct hoisting, it is still possible to hoist the battery module on the side farther away from the base 2 through staggered installation, and then push the battery module so that the output pole 1 gradually approaches the base 2 along the direction in which the installation channel 5 extends, and finally abuts against the designated position on the base 2. By adopting the above structure, the demand for automatic hoisting of the battery pack is met, and at the same time, the possible collision between the mounting base and the output pole 1 during the hoisting process is reduced.

[0059] Based on the above design concept, specifically, in this embodiment, refer to Figure 1 and Figure 2 The base 2 includes a bottom plate 201, a limiting column 202 and an insert nut 203. Among them, the bottom plate 201 can be made of polyurethane engineering plastic material with good insulation performance, and a block structure with a rectangular cross section is formed by injection molding. The lower surface of the bottom plate 201 is formed by injection molding to form a limiting column 202. The limiting column 202 is constructed as a column with a waist-shaped cross section to limit the overall position of the base 2 and prevent it from rotating along its own axis under the action of friction during the tightening process of the fastening bolt. The insert nut 203 is arranged on the bottom plate 201 and the limiting column 202 along the height direction of the battery pack. The bottom plate 201 is provided with a weight-reducing hole 2011 along its own thickness direction, that is, the height direction of the battery pack. The weight-reducing hole 2011 is constructed as a plurality of holes evenly distributed along the circumference of the insert nut 203. The setting of the weight-reducing hole 2011 can reduce its own weight without significantly affecting the stability and structural strength, so as to meet the design concept of lightweight battery pack. The surface of the insert nut 203 is provided with knurled convex ridges 2031, which are constructed as long strips with isosceles triangle cross sections and are arranged in a plurality of densely arranged along the circumference of the outer surface of the insert nut 203. The portion of the base 2 that matches the insert nut 203 is provided with a groove corresponding to the shape of the knurled convex ridges 2031, and the inner wall of the groove fits with the outer surface of the knurled convex ridges 2031 to limit the position of the insert nut 203.

[0060] Reference Figure 1 and Figure 2, for the purpose of improving the electrical safety of the battery pack as a whole, in this embodiment, a cover 3 is provided on the base 2. In order to facilitate the installation and removal of the cover 3, the cover 3 is buckled on the top of the base 2 by means of a snap connection, and can be detachably matched with the base 2 to form an insulating protection for the output pole 1. The cover 3 can be made of the same material as the base 2. In this embodiment, a clamping block 6 is provided at one end of the connecting portion 4 away from the base 2 by means of injection molding; buckles 7 are provided on different sides of the cover 3 by means of injection molding, and the distribution of the buckles 7 on the cover 3 corresponds to the distribution of the connecting portion 4 on the base 2. During assembly, the buckle 7 is sleeved on the clamping block 6 to form a clamping structure. In order to make the assembly process of the clamping structure smoother, the edge of the side of the buckle 7 close to the clamping block 6 can be rounded; similarly, the edge of the side of the clamping block 6 close to the buckle 7 can be rounded. By adopting the above arrangement, the buckle 7 can be sleeved on the clamping block 6 in a sliding manner, and the process is smoother.

[0061] It should be noted that the distribution of the block 6 and the buckle 7 is not limited to the specific distribution form adopted in this embodiment. If there are other requirements, the block 6 can also be set on the cover 3; correspondingly, the buckle 7 can also be set at the end of the connecting portion 4 away from the base 2.

[0062] Embodiment 2

[0063] This embodiment relates to a battery pack, including the output pole mounting seat as described in the first embodiment.

[0064] Reference Figure 3 In this embodiment, by arranging multiple output pole mounting seats in the battery pack, in addition to achieving the limitation and protection of the output pole 1, the structural design of the output pole mounting seat can also reserve space for parallel movement during the lifting process, so that it can be installed in an offset manner to avoid collision between the battery cell module and the output pole mounting seat.

[0065] In addition, the battery pack in this embodiment also includes a crossbeam 8 and an extended copper bar 9. Figure 3 , the crossbeam 8 can be a hollow square steel with a rectangular cross-section. Multiple crossbeams 8 are connected end to end, and an external supporting frame of the battery pack cell module is formed by welding or bolting. A mounting hole 801 is provided on the crossbeam 8. The mounting hole 801 is used to position and fix the mounting seat. The mounting hole 801 is provided on the upper surface of the crossbeam 8 along the height direction of the battery pack. The shape of the mounting hole 801 is constructed to be waist-shaped, which is longer than the cross-sectional length of the limiting column 202 in the length direction. The limiting column 202 is inserted into the mounting hole 801 to limit the position of the mounting seat.

[0066] The mounting hole 801 is provided on the side of the upper surface of the cross beam 8 that is farther from the battery module. When the limiting column 202 of the base 2 is inserted into the mounting hole 801, the distance between the projection of the side edge of the bottom plate 201 close to the battery module on the upper surface of the cross beam 8 and the side edge of the upper surface of the cross beam 8 close to the battery module is not less than 2 mm. As set above, there is an installation margin of not less than 2 mm between the mounting seat and the battery module, thereby eliminating the influence of the processing error caused by the thermal deformation of the cross beam 8 welding on the assembly process.

[0067] The main body of the extended copper bar 9 is a long copper plate with bolt holes at both ends. One end of the extended copper bar 9 is fixed to the output pole 1 by a fastening bolt and is electrically connected. The other end of the extended copper bar 9 is electrically connected to the BDU component, so that the BDU component can control the on and off of the battery module.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An output pole mounting seat, used for positioning, mounting and insulation protection of the output pole, characterized in that: include: A base, wherein the output pole abuts against the base; A cover member, which is buckled on the top of the base to provide insulation protection for the output pole; A connecting portion, extending from the base toward the covering member, and detachably connected to the covering member to form a position limit for the covering member; The connecting parts are arranged to be multiple and distributed on different sides of the base; at least one installation channel is formed between the connecting parts, so that the output pole can approach or move away from the base along the installation channel without colliding with the connecting parts.

2. The output pole mounting seat according to claim 1, characterized in that: The base comprises: A bottom plate, the output pole abutting against an upper surface of the bottom plate; A limiting column, fixedly arranged on the lower surface of the bottom plate; The insert nut is arranged on the base plate and the limiting column through the height direction.

3. The output pole mounting seat according to claim 2, characterized in that: The bottom plate is provided with weight-reducing holes along the height direction, and the weight-reducing holes are arranged to be a plurality of holes evenly distributed in the circumferential direction of the outer side of the insert nut.

4. The output pole mounting seat according to claim 2, characterized in that: The outer surface of the insert nut is provided with knurled ridges, and the bottom plate is provided with grooves fitting with the knurled ridges at positions cooperating with the knurled ridges.

5. The output pole mounting seat according to claim 2, characterized in that: The limiting column is constructed into a columnar shape with a waist-shaped cross section.

6. The output pole mounting seat according to any one of claims 1 to 5, characterized in that: The connecting part is provided with a clamping block, and the covering part is provided with a buckle; or, The connecting part is provided with a buckle, and the covering member is provided with a clamping block; The buckle sleeve is arranged on the clamping block to form a limit position of the connecting portion on the covering member.

7. The output pole mounting seat according to claim 6, characterized in that: The edge of one side of the buckle close to the clamping block is rounded; and / or, The edge of one side of the clamping block close to the buckle is rounded.

8. A battery pack, characterized in that: include: A mounting seat, which is an output pole mounting seat as claimed in any one of claims 1 to 7; A crossbeam is provided with a mounting hole, and the length of the mounting hole is longer than the cross-sectional length of the limiting column.

9. A battery pack according to claim 8, characterized in that: The mounting hole is opened on a side of the top surface of the beam away from the center of the battery pack, so that the distance between the edge of the projection of the base inserted in the mounting hole to the top surface of the beam and the edge of the beam is not less than 2 mm.

10. A battery pack according to claim 8, characterized in that: Also includes: An extended copper bar, one end of which is electrically connected to the output pole, and the other end of which extends to the outside of the beam.

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