Output pole base, mounting structure, battery pack and electric device

Abstract

The utility model relates to an output electrode base, a mounting structure, a battery pack and an electric device. The output pole base comprises a mounting base and a metal insert, the metal insert is detachably embedded in the containing cavity of the mounting base, and the position of the metal insert can be adjusted in the X direction, the Y direction and the Z direction of the mounting base. The utility model further provides an installation structure of the output pole base. The installation structure comprises the output pole base. The utility model also provides a battery pack, which comprises the output pole base disclosed by the utility model. The utility model further provides an electric device which comprises the battery pack provided by the utility model. According to the utility model, the problems of complex structure, inconvenience in disassembly and maintenance and small tolerance capacity of the existing output pole base are solved, and the problem of unstable performance of the existing output base is also solved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and particularly relates to an output pole base, an installation structure, a battery pack and an electric device. Background Art

[0002] With the rapid development of the new energy vehicle industry, as a key component of the new energy vehicle, the performance and cost of the new energy battery system directly affect the market competitiveness of new energy vehicles. The structural integration degree of the battery system not only determines its basic elements such as cost, volume and function, but also is an important index to measure the advancement of the battery system. Therefore, simplifying the components of the battery system, improving the integration degree of the components, reducing the cost of the whole battery pack, and improving the integration efficiency of the battery have become important directions for the research and development of the current new energy battery system.

[0003] In the new energy battery system, the output pole base is a key component, which connects the module busbar and the output pole copper bar and plays a bridging role. Its stability and reliability have a decisive impact on the performance and safety of the whole battery system. At the same time, since the battery system often needs to consider issues such as tolerance, assembly sequence and fault tolerance during production and assembly, the mobility and detachability of the output pole base are also particularly important.

[0004] However, the existing output pole base designs often have some problems. For example, an output pole base, a battery and an electric device disclosed in CN116315464A, the two limiting components of the output pole base are movably connected to both ends of the base body along the second direction. By moving the limiting components, the distance between the two limiting components along the second direction can be adjusted to adapt to output pole connecting pieces of different specifications. And when the limiting components are damaged, the limiting components can be easily detached from the base body and replaced without detaching the whole output pole base from the end plate and then replacing it. However, this base has a complex structure, many secondary components, and the assembly is relatively cumbersome. Another example is an output pole component and a battery module disclosed in CN213340657U. The output pole component is used to connect to the end plate of the battery module. The output pole component includes an output pole base. A first positioning post is arranged at the bottom of the output pole base for positioning with the end plate, and a clamping structure is arranged on the side wall of the first positioning post for clamping with the end plate. Although this base has a relatively simple structure, small volume and is convenient for assembly, due to its small installation surface with the output pole metal part and inability to move, its tolerance accommodation ability is small, and problems such as misaligned holes are likely to occur. Summary of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide an output pole base, an installation structure, a battery pack and an electrical device, so as to solve the problems of the existing output pole base having a complex structure, inconvenient disassembly, repair and small tolerance capacity, and also solve the problem of unstable performance of the existing output base.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] An output pole base includes an installation base and a metal insert. The metal insert is detachably embedded in the accommodation cavity of the installation base, and the position of the metal insert is adjustable along the X, Y and Z directions of the installation base.

[0008] According to the above technical means, by setting the output pole base to be composed of two main components, namely an installation base and a metal insert, the structure of the output pole base is effectively simplified; by detachably embedding the metal insert in the accommodation cavity of the installation base, the installation, disassembly and repair are facilitated, and when one of the components is damaged, only the damaged component can be replaced, thereby reducing the maintenance cost; by setting the position of the metal insert to be adjustable along the X, Y and Z directions of the installation base, the tolerance capacity of the part accommodation is greatly improved, and the problems of the existing output pole base having a complex structure, inconvenient disassembly, repair and small tolerance capacity are effectively solved.

[0009] Preferably, a groove is formed on a cavity wall of the accommodation cavity, and a protrusion for snap-fitting with the groove is formed at a corresponding position on the metal insert.

[0010] By providing a groove on the cavity wall of the accommodation cavity of the installation base and providing a protrusion for snap-fitting with the groove at a corresponding position on the metal insert, the stability of the assembly of the installation base and the metal insert is effectively improved.

[0011] Preferably, a buckle is formed on another cavity wall of the accommodation cavity, and a clamping hole for snap-fitting with the buckle is formed at a corresponding position on the metal insert.

[0012] By forming a buckle on another cavity wall of the accommodation cavity and forming a clamping hole for snap-fitting with the buckle at a corresponding position on the metal insert, the stability of the assembly is further improved, and grooves and buckles are respectively provided on the two cavity walls of the accommodation cavity, thereby forming a non-symmetrical anti-fooling design to avoid the problem of assembly errors.

[0013] Preferably, the installation base continuously forms an ear outside the accommodation cavity, and the ear is provided with an installation hole for assembling and fixing with the cross beam of the battery pack box body.

[0014] By forming lugs by extending outside the accommodation cavity of the mounting base and providing mounting holes on the lugs, the assembly of the mounting base and the cross beam of the battery pack box body is realized, and the design of the lugs also increases the contact area between the mounting base and the cross beam, effectively ensuring the stability of the assembly.

[0015] Preferably, the metal insert and the mounting base are in clearance fit in the X direction, Y direction and Z direction, so that the position of the metal insert is adjustable along the X direction, Y direction and Z direction of the mounting base.

[0016] Preferably, the metal insert is provided with mounting through holes for assembling and fixing with the output pole aluminum bar and the output pole copper row.

[0017] By providing mounting through holes on the metal insert, the metal insert, the output pole aluminum bar and the output pole copper row are assembled and fixed together through connecting pieces, ensuring the stability of the assembly.

[0018] Preferably, a welding nut is provided inside the accommodation cavity at the position of the mounting through hole.

[0019] By providing a welding nut at the position of the mounting through hole, the assembly is facilitated and the assembly efficiency is improved.

[0020] Preferably, the metal insert is made of steel.

[0021] Preferably, the mounting base is made of plastic.

[0022] The present invention also provides an installation structure of an output pole base, including the output pole base described in the present invention.

[0023] Preferably, the installation structure further includes an output pole aluminum bar and an output pole copper row, and the output pole aluminum bar and the output pole copper row are assembled with the output pole base through connecting pieces;

[0024] The metal insert of the output pole base is in surface contact with the output pole aluminum bar.

[0025] By setting the metal insert of the output pole base to be in surface contact with the output pole aluminum bar, the good contact performance between the output pole base and the output pole aluminum bar is ensured.

[0026] The present invention also provides a battery pack, including the output pole base described in the present invention.

[0027] The present invention also provides an electrical device, including the battery pack described in the present invention.

[0028] The beneficial effects of the present invention:

[0029] The output pole base of the present utility model simplifies the structure of the output pole base by setting it to consist of two main components, namely an installation base and a metal insert. By detachably embedding the metal insert in the accommodation cavity of the installation base, it facilitates installation, disassembly, and maintenance. Moreover, when one of the components is damaged, only the damaged component needs to be replaced, thereby reducing the maintenance cost. By setting the positions of the metal insert along the X, Y, and Z directions of the installation base to be adjustable, it greatly improves the ability to accommodate part tolerance, and has the advantages of simple structure, convenient assembly, small occupied space, strong mobility, and low cost, effectively reducing the manufacturing cost and repair cost of the output pole base.

[0030] The installation structure of the output pole base of the present utility model has the advantages of simple installation, detachable, and small size when connecting the output pole of the output pole base of the present utility model with the busbar and copper (aluminum) bar of the power battery module. It can effectively integrate the high-voltage circuit of the module output pole and reduce the repair cost and manufacturing cost of the output pole. At the same time, the metal insert of the output pole base can move flexibly in the X, Y, and Z directions, which can well accommodate the problem that it is difficult to install the module output pole caused by process errors, out-of-tolerance part dimensions, etc., ensuring the reliability of the connection of the module high-voltage circuit, providing a new idea for improving the problem that it is difficult to install the connection piece of the module output pole, and has the value of popularization and application in the field of battery technology. Brief Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the output pole base of the present utility model;

[0032] Figure 2 is an exploded view of the output pole base;

[0033] Figure 3 is an exploded view of the output pole base from another angle;

[0034] Figure 4 is a top view of the output pole base;

[0035] Figure 5 is Figure 4 a cross-sectional view taken along A-A in

[0036] Figure 6 is a schematic structural diagram of the installation structure of the output pole base;

[0037] Among them, 1 - installation base, 11 - accommodation cavity, 12 - groove, 13 - buckle, 14 - lug, 15 - mounting hole; 2 - metal insert, 21 - protrusion, 22 - card hole, 23 - mounting through hole; 3 - welding nut; 4 - output pole aluminum bar; 5 - output pole copper bar. Detailed Description of the Preferred Embodiment

[0038] The embodiments of the present utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be understood that the preferred embodiments are only for explaining the present utility model, rather than limiting the protection scope of the present utility model.

[0039] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0040] In the following description, a large number of details are explored to provide a more thorough explanation of the embodiments of the present application. However, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details. Embodiment

[0041] As Figures 1 to 6 shown, an output pole base includes a mounting base 1 and a metal insert 2. The metal insert 2 is detachably embedded in the receiving cavity 11 of the mounting base 1, and the position of the metal insert 2 is adjustable along the X, Y, and Z directions of the mounting base 1.

[0042] By setting the output pole base to be composed of two main components, namely the mounting base and the metal insert, the structure of the output pole base is simplified; by detachably embedding the metal insert in the receiving cavity of the mounting base, the installation, disassembly, and maintenance are facilitated, and when one of the components is damaged, only the damaged component can be replaced, thereby reducing the maintenance cost; by setting the position of the metal insert to be adjustable along the X, Y, and Z directions of the mounting base, the tolerance capacity of the part accommodation is greatly improved. It effectively solves the problems of the existing output pole base, such as complex structure, inconvenient disassembly and maintenance, and small tolerance capacity.

[0043] Among them, the implementation method for the position of the metal insert 2 to be adjustable along the X, Y, and Z directions of the mounting base 1 is that the metal insert 2 and the mounting base 1 are in clearance fit in the X, Y, and Z directions. Generally, there is a movement of ±2 mm in the X direction, ±1 mm in the Y direction, and +1 mm in the Z direction between the metal insert 2 and the receiving cavity 11. That is to say, the position of the installation point on the metal insert for installing the output pole connection piece (including the output pole aluminum bar 4 and the output pole copper bar 5) can be appropriately adjusted according to the requirements of the output pole connection piece, effectively accommodating the tolerances and errors caused by the part size and process.

[0044] In some embodiments, in order to improve the stability of the assembly of the mounting base and the metal insert, a groove 12 is formed on a cavity wall of the receiving cavity 11, and a protrusion 21 that is snap-fitted with the groove 12 is formed at a corresponding position on the metal insert 2, so that the metal insert 2 is snap-fitted and fixed in the receiving cavity 11 of the mounting base 1, and the snap-fitting and fixing method facilitates installation and disassembly.

[0045] In some embodiments, in order to further improve the stability of the assembly, a snap 13 is formed on another cavity wall of the receiving cavity 11, and a snap hole 22 that is snap-fitted with the snap 13 is formed at a corresponding position on the metal insert 2.

[0046] Exemplarily, the receiving cavity 11 of the mounting base 1 has a rectangular configuration, and the cavity wall of the receiving cavity 11 where the groove 12 is provided is adjacent to the cavity wall where the snap 13 is provided. With such a design, an asymmetric configuration is formed, effectively avoiding the problem of manual assembly errors.

[0047] In some embodiments, in order to achieve the installation and fixation of the output pole base, an ear 14 is continuously formed outside the receiving cavity 11 of the mounting base 1, and a mounting hole 15 for assembling and fixing with the cross beam of the box body is provided on the ear 14, so that the output pole base and the cross beam of the box body are assembled and fixed together through a connecting member. And the design of the ear 14 makes the ear 14 in surface contact with the cross beam, thereby increasing the contact area between the mounting base and the cross beam and ensuring the stability of the assembly.

[0048] Exemplarily, the mounting base 1 extends away from the receiving cavity 11 in the length direction on two opposite outer sides of the receiving cavity 11 to form two symmetric ears 14, and mounting holes 15 are provided on both of the two ears 14. The two ears 14 are provided on both sides in the length direction of the receiving cavity 11.

[0049] Generally, the mounting base 1 is mounted on the cross beam of the battery pack box body. The mounting holes 15 on the ears 14 at both ends of the mounting base 1 are assembled and fixed with the mounting holes on the cross beam of the battery pack box body through vertical nails. The height of the protrusion 21 on the metal insert 2 is lower than the height of the groove 12 on the cavity wall of the receiving cavity 11 to avoid interference between the protrusion 21 and other components.

[0050] In some embodiments, in order to ensure the stability of the assembly of the metal insert and the output pole connecting piece, a mounting through hole 23 for assembling and fixing with the output pole aluminum bar 4 and the output pole copper row 5 is provided on the metal insert 2, so that the metal insert 2 is assembled and fixed with the output pole aluminum bar 4 and the output pole copper row 5 together through a connecting member. Among them, the connecting member can be a screw, a bolt, etc.

[0051] In some embodiments, to facilitate assembly and improve assembly efficiency, a welding nut 3 is provided at the mounting through-hole 23. At the same time, to prevent the welding nut 3 from interfering with other components, the welding nut 3 is arranged at a position inside the accommodation cavity 11 at the mounting through-hole 23.

[0052] Exemplarily, two mounting through-holes 23 are provided at intervals on the metal insert 2. A welding nut 3 is provided at each mounting through-hole 23. Among them, the welding nut 3 is pre-welded at the mounting through-hole 23 by welding.

[0053] In some embodiments, the metal insert 2 and the welding nut 3 are made of steel. Generally, the metal insert 2 and the welding nut 3 are free-cutting steels.

[0054] In some embodiments, the mounting base 1 is made of plastic, which not only ensures the insulation performance, but also realizes the lightweight design and has the advantage of low cost.

[0055] In some embodiments, there is also provided a mounting structure including the output pole base in any of the above embodiments.

[0056] In some embodiments, the mounting structure of the output pole base further includes an output pole aluminum bar 4 and an output pole copper bar 5. The output pole aluminum bar 4 and the output pole copper bar 5 are assembled with the output pole base through connectors;

[0057] To ensure the good contact performance between the output pole base and the output pole aluminum bar, it is set that the metal insert 2 of the output pole base is in surface contact with the output pole aluminum bar 4 to solve the problem that the existing mounting surface of the output pole base is small and the performance is unstable.

[0058] In the actual assembly process of the above-mentioned mounting structure of the output pole base, the protrusion 21 of the metal insert 2 is pushed downward along the direction of the groove 12. At the same time, the clamping hole 22 of the metal insert 2 moves downward until the buckle 13 snaps into the clamping hole 22 of the metal insert 2, forming a sound feedback, indicating that the metal insert 2 is installed in place. The clamping hole 22 of the metal insert 2 and the buckle 13 of the mounting base 1 are clamped and matched to form a Z-direction limit. The protrusion 21 of the metal insert 2 and the groove 12 of the mounting base 1 are matched to form X-direction and Y-direction limits, realizing the assembly stability of the output pole base. The metal insert 2 and the mounting base 1 are in clearance fit, realizing the mobility of the output pole base. The metal insert 2 and the mounting base 1 are detachably connected, facilitating disassembly, assembly and maintenance. When assembling the output pole base and the output pole connecting piece, the output pole aluminum bar 4 is directly placed on the mounting surface of the metal insert 2 of the output pole base, and the output pole copper bar 5 is placed on the mounting surface of the output pole aluminum bar 4, and the assembly is realized through the cooperation of the connecting bolt and the welding nut 3. Among them, the output pole copper bar 5 can also be an output pole aluminum bar.

[0059] When the installation structure of the output pole base needs to be disassembled, the buckle 13 on the installation base 1 is moved with a tool to bend the buckle 13 outward, thereby releasing the Z-direction limit of the buckle 13 on the metal insert 2, thereby removing the metal insert 2 to form a detachable output pole base structure. Battery pack repair has always been a major challenge in battery structure design, and the detachability of the output pole makes the repair of the output pole connecting piece possible.

[0060] In some embodiments, a battery pack including the output pole base in any of the above embodiments is also provided.

[0061] In some embodiments, an electrical device including the battery pack in any of the above embodiments is also provided.

[0062] In summary, the output pole base of the utility model effectively simplifies the structure of the output pole base by configuring the output pole base to be composed of two main components, namely a mounting base and a metal insert; facilitates installation, disassembly and maintenance by detachably embedding the metal insert in the accommodating cavity of the mounting base, and when one of the components is damaged, only the damaged component can be replaced, thereby reducing the maintenance cost; by setting the metal insert to be adjustable in the X-direction, Y-direction and Z-direction positions along the mounting base, the ability to accommodate part tolerances is greatly improved, and the utility model has the advantages of simple structure, easy assembly, small space occupation, strong mobility and low cost, effectively reducing the manufacturing cost and rework cost of the output pole base.

[0063] The mounting structure of the output pole base of the utility model has the advantages of easy installation, detachability and small size, by connecting the output pole base of the utility model with the output pole of the power battery module bus and the copper (aluminum) bus, and can effectively integrate the high-voltage circuit of the module output pole and reduce the rework cost and production cost of the output pole; at the same time, the metal insert of the output pole base can be flexibly moved in the X-direction, Y-direction and Z-direction positions, and can well accommodate the problem of difficult installation of the module output pole caused by process errors, component size tolerances and other factors, thereby ensuring the reliability of the module high-voltage circuit connection, and providing a new idea for improving the problem of difficult installation of the module output pole connecting piece, and has promotion and application value in the field of battery technology.

[0064] The above embodiments are merely illustrative of the principles and effects of the present utility model, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. An output pole base, characterized in that, It includes an installation base (1) and a metal insert (2). The metal insert (2) is detachably embedded in the accommodation cavity (11) of the installation base (1), and the position of the metal insert (2) is adjustable in the X direction, Y direction and Z direction of the installation base (1).

2. The output terminal base according to claim 1, wherein A groove (12) is formed on a cavity wall of the accommodation cavity (11), and a protrusion (21) that is in snap-fit with the groove (12) is formed at a corresponding part of the metal insert (2).

3. The output terminal base according to claim 1, characterized in that, A snap-fastener (13) is formed on another cavity wall of the accommodation cavity (11), and a snap-hole (22) that is in snap-fit with the snap-fastener (13) is formed at a corresponding part of the metal insert (2).

4. The output terminal base according to claim 1, characterized in that, The installation base (1) continuously forms an ear (14) outside the accommodation cavity (11), and an installation hole (15) for assembling and fixing with a cross beam of a battery pack box body is provided on the ear (14); and / or, the metal insert (2) and the installation base (1) are in clearance fit in the X direction, Y direction and Z direction, so that the position of the metal insert (2) is adjustable in the X direction, Y direction and Z direction of the installation base (1).

5. The output terminal base according to claim 1, characterized in that, The metal insert (2) is provided with an installation through-hole (23) for assembling and fixing with an output pole aluminum bar (4) and an output pole copper row (5).

6. The output pole base according to claim 5, characterized in that, A welding nut (3) is provided inside the accommodation cavity (11) where the installation through-hole (23) is located; and / or, the metal insert (2) is made of steel; and / or, the installation base (1) is made of plastic.

7. An installation structure of an output terminal base, characterized in that, It includes an output pole base according to any one of claims 1 to 6.

8. The mounting structure according to claim 7, characterized in that The installation structure further includes an output pole aluminum bar (4) and an output pole copper row (5), and the output pole aluminum bar (4) and the output pole copper row (5) are assembled together with the output pole base through a connecting member; The metal insert (2) of the output pole base is in surface contact with the output pole aluminum bar (4).

9. A battery pack, characterized in that, It includes an output pole base according to any one of claims 1 to 6.

10. An electrical device, characterized in that, It includes a battery pack according to claim 9.

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