WO2023130455A1

WO2023130455A1 - Mounting assembly, battery, electric device, battery manufacturing method and manufacturing apparatus

Info

Publication number: WO2023130455A1
Application number: PCT/CN2022/071046
Authority: WO
Inventors: 高海兴; 陈亮美
Original assignee: 宁德时代新能源科技股份有限公司
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2023-07-13

Abstract

Provided in the present application are a mounting assembly, a battery, an electric device, and a battery manufacturing method and manufacturing apparatus. The mounting assembly comprises a mounting support. The mounting support comprises: a fixing portion, which is configured to be connected to a mounting beam of a lower case of a battery; a connection portion, which is connected to one side of the fixing portion and encloses a space between same and the fixing portion to allow a member to be mounted to pass through the mounting support in a first direction, which is the extension direction of the mounting beam; and a mounting portion, which is arranged on the connection portion and is used for mounting an upper cover of the battery. The mounting assembly in the embodiments of the present application facilitates the arrangement of the member to be mounted and achieves a fixed connection between the lower case and the upper cover, so as to reduce the internal space of the lower case of the battery that is occupied by the member to be mounted, which is conducive to improving the internal space utilization and volumetric energy density of the battery and is thus conducive to increasing the quantity of electricity of the battery.

Description

Installation component, battery, electrical device, battery manufacturing method and manufacturing equipment

technical field

The present application relates to the field of battery technology, in particular to a mounting assembly, a battery, an electrical device, a battery manufacturing method, and manufacturing equipment.

Background technique

This section provides background information related to the present application only and is not necessarily prior art.

With the continuous update of battery technology and the promotion of the market, high energy density batteries have been widely used in many fields. For some batteries in the related art, copper bars, wiring harnesses, pipelines, etc. are often arranged in the battery to facilitate the internal electrical connection of the battery, the cooling of the battery, and the circuit connection between the battery and the entire workshop. However, this will result in a low utilization rate of the internal space of the battery, which will affect the power of the battery.

Contents of the invention

Embodiments of the present application provide an installation assembly, a battery, an electrical device, a battery manufacturing method, and manufacturing equipment, so as to improve battery space utilization and increase battery power.

In a first aspect, the present application provides a mounting assembly for a battery, the mounting assembly includes a mounting bracket, and the mounting bracket includes: a fixing part, the fixing part is used to connect to the mounting beam of the lower box of the battery; a connecting part, the connecting part It is connected to one side of the fixed part, and defines a space between the fixed part for the part to be installed to pass through the installation bracket along the first direction, the first direction being the extension direction of the installation beam; the installation part, the installation part is arranged on the connection part On the top, the installation part is used to install the upper cover of the battery.

The parts to be installed in the embodiment of the present application may include high-voltage wire harnesses, conductive connecting pieces, pipelines, etc. in the battery. In the embodiment of the present application, the installation component is arranged on the installation beam, and the parts to be installed are fixed on the installation bracket of the installation component, which is beneficial to improve the space utilization rate in the battery, and further helps to increase the power of the battery. The installation bracket is installed on the upper surface of the installation beam through the fixing part, and the installation part is provided on the installation bracket, and the installation bracket can be fixedly connected to the upper cover through the installation part. Further, a connecting part is also provided on the mounting bracket, and there is a space between the fixing part and the connecting part for the parts to be installed to pass through, and the parts to be installed can be placed in the space of the mounting bracket between the upper cover and the mounting beam Inside. In this way, even if the upper cover of the battery has no central channel, the arrangement of the parts to be installed can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery by the parts to be installed can be reduced, so that more battery cells can be arranged in a limited space body, which is conducive to improving the volumetric energy density of the battery, which in turn is beneficial to increasing the power of the battery. In addition, the flatness of the upper cover can be improved, and the probability of the upper cover vibrating and beating the electric device can be reduced, which is beneficial to improving the safety of the battery.

The mounting assembly according to the embodiment of the present application may also have the following technical features:

In some embodiments of the present application, an installation hole is provided on the top of the installation part, and the installation hole is used for fixing the upper cover. By providing the installation hole, the upper cover can be fixedly connected to the installation part through the connecting piece, thereby realizing the connection between the upper cover and the installation beam.

In some embodiments of the present application, the installation hole includes a blind hole opened on the top of the installation part, and a threaded sleeve embedded in the blind hole. Generally speaking, in order to reduce the weight of the battery box, aluminum or aluminum alloy materials are usually used to make the box. However, the strength of threads on aluminum materials is usually low. By setting threaded sleeves in blind holes, on the one hand, it can alleviate the wear of the threads, reduce the conductive debris caused by thread wear, and improve the safety of the battery. On the other hand , which is conducive to improving the strength of the threaded connection between the upper cover and the installation part, thereby improving the service life of the battery box.

In some embodiments of the present application, an annular groove is formed on the top of the installation part, the annular groove coincides with the axis of the installation hole, and a sealing ring is arranged in the annular groove. Such setting is beneficial to improve the sealing performance between the upper cover of the battery and the installation beam.

In some embodiments of the present application, the mounting part includes a first part connected to the connecting part, a second part disposed on top of the first part, and a cross-sectional area of the second part is larger than that of the first part. In this way, it is beneficial to increase the contact area between the installation part and the upper cover of the battery, and further improve the stability of the connection between the upper cover and the installation beam.

In some embodiments of the present application, the installation assembly further includes a limiting member, which is located in the space and detachably connected to the connecting portion, and is used to limit the component to be installed in the space. By arranging the limiting member, the part to be installed is under the dual constraints of the limiting member and the installation bracket, which is beneficial to further improving the reliability of the fixing component to be installed by the installation component.

In some embodiments of the present application, the mounting assembly further includes an insulating sheet disposed on surfaces of the fixing part and the connecting part located in the space. Such setting is beneficial to improving the insulation performance of the part to be installed, the installation component and the upper cover.

In some embodiments of the present application, a connection hole that cooperates with the limiting member is opened on the connection portion. The limiting piece can be connected to the connecting part through the connecting hole. For example, the limiting member is connected to the connecting part by setting threads on the connecting hole, or the limiting member is connected to the connecting part by installing bolts, nuts and other connecting parts on the connecting hole; or, the limiting member is connected to the connecting part by connecting The interference fit of the hole is connected to the connecting part, etc., and this application is not limited.

In some embodiments of the present application, the fixing part, the connecting part and the installation part are integrally formed, and both the fixing part and the connecting part are plate-shaped structures. The mounting bracket of integral molding structure can be formed by casting, which is beneficial to improve the convenience of connecting the mounting bracket.

In some embodiments of the present application, the mounting bracket is made of die-cast aluminum. In this way, it is beneficial to improve the durability of the mounting bracket and reduce the weight of the mounting bracket.

In some other embodiments of the present application, the mounting bracket is made of PA66+GF30. Such setting is beneficial to further reducing the weight of the mounting bracket, and at the same time improving the heat resistance and service life of the mounting bracket.

The second aspect of the present application proposes a battery, including a lower box, an upper cover, and the mounting assembly according to the first aspect, the lower box includes a mounting beam, the fixing part is connected to the mounting beam, and the fixing part and the connecting part define a The space faces the lower box, and the upper cover is installed on the installation part.

In the battery of the embodiment of the present application, the installation assembly is arranged on the installation beam of the lower box body, and the parts to be installed are fixed on the installation bracket of the installation assembly, which helps to improve the space utilization rate in the battery, and then helps to increase the power of the battery. . The installation bracket is installed on the upper surface of the installation beam through the fixing part. An installation part is arranged on the installation bracket, and the installation bracket can be fixedly connected to the upper cover through the installation part. Furthermore, a connecting part is also provided on the mounting bracket, and there is a space between the fixing part and the connecting part for the parts to be installed to pass through, so that the parts to be installed can be placed in the space between the upper cover and the installation beam. In this way, even if the upper cover of the battery has no central channel, the arrangement of the parts to be installed can be facilitated. At the same time, it can reduce the occupation of the internal space of the lower box of the battery by the parts to be installed, so that more battery cells can be arranged in a limited space, which is beneficial to improving the volumetric energy density of the battery, and further helping to increase the power of the battery. In addition, the flatness of the upper cover can be improved, and the probability of the upper cover vibrating and beating the electric device can be reduced, which is beneficial to improving the safety of the battery.

The third aspect of the present application provides an electrical device, including the battery described in the second aspect above.

The electric device in the embodiment of the present application uses the battery described in the second aspect as a power supply system. For the battery, the installation assembly is arranged on the installation beam of the lower box, and the parts to be installed are fixed on the installation bracket of the installation assembly, which is beneficial to improve the space utilization rate in the battery, increase the power of the battery, and then help to improve the power consumption. The usage time of the device. The installation bracket is installed on the upper surface of the installation beam through the fixing part. An installation part is arranged on the installation bracket, and the installation bracket can be fixedly connected to the upper cover through the installation part. Furthermore, a connecting part is also provided on the mounting bracket, and there is a space between the fixing part and the connecting part for the parts to be installed to pass through, so that the parts to be installed can be placed in the space between the upper cover and the installation beam. In this way, even if the upper cover of the battery has no central channel, the arrangement of the parts to be installed can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery by the parts to be installed can be reduced, so that more battery cells can be arranged in a limited space body, it is beneficial to increase the volumetric energy density of the battery, which in turn is beneficial to increase the power of the battery and the service time of the electrical device. In addition, the flatness of the upper cover can be improved, and the probability of the upper cover vibrating and beating the electric device can be reduced, which is beneficial to improving the safety of the battery.

The fourth aspect of the present application proposes a method for manufacturing a battery, including:

Provide the lower box, the lower box includes the installation beam;

Provide installation components, installation components include installation brackets, installation brackets include fixing parts, connecting parts and installation parts,

Connect the fixed part to the mounting beam; the connecting part is connected to one side of the fixed part, the space defined between the connecting part and the fixed part faces the lower box, and the mounting part is arranged on the connecting part;

provide a cover;

Install the top cover on the installation part.

For the battery produced by the battery manufacturing method of the embodiment of the present application, the installation assembly is arranged on the installation beam of the lower box, and the parts to be installed are fixed on the installation bracket of the installation assembly, which is conducive to improving the space utilization rate in the battery. In turn, it is beneficial to increase the power of the battery. The installation bracket is installed on the upper surface of the installation beam through the fixing part. An installation part is arranged on the installation bracket, and the installation bracket can be fixedly connected to the upper cover through the installation part. Furthermore, a connecting part is also provided on the mounting bracket, and there is a space between the fixing part and the connecting part for the parts to be installed to pass through, so that the parts to be installed can be placed in the space between the upper cover and the installation beam. In this way, even if the upper cover of the battery has no central channel, the arrangement of the parts to be installed can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery by the parts to be installed can be reduced, so that more battery cells can be arranged in a limited space body, which is conducive to improving the volumetric energy density of the battery, which in turn is beneficial to increasing the power of the battery. In addition, the flatness of the upper cover can be improved, and the probability of the upper cover vibrating and beating the electric device can be reduced, which is beneficial to improving the safety of the battery.

The fifth aspect of the present application proposes a battery manufacturing equipment, including:

The first providing device is used for providing the lower box, and the lower box includes a mounting beam;

The second providing device is used to provide a mounting component, the mounting component includes a mounting bracket, and the mounting bracket includes a fixing part, a connecting part and a mounting part;

The third providing device is used for providing the upper cover;

The assembly device is used to connect the fixing part to the installation beam, the connecting part is connected to one side of the fixing part, so that the space defined between the connecting part and the fixing part faces the lower box body, the installing part is arranged on the connecting part, and the upper The cover is mounted on the mounting portion.

For the battery produced by the battery manufacturing equipment of the embodiment of the present application, the installation assembly is arranged on the installation beam of the lower box, and the parts to be installed are fixed on the installation bracket of the installation assembly, which is beneficial to improve the space utilization rate in the battery, and then It is beneficial to increase the power of the battery. The installation bracket is installed on the upper surface of the installation beam through the fixing part. An installation part is arranged on the installation bracket, and the installation bracket can be fixedly connected to the upper cover through the installation part. Furthermore, a connecting part is also provided on the mounting bracket, and there is a space between the fixing part and the connecting part for the parts to be installed to pass through, so that the parts to be installed can be placed in the space between the upper cover and the installation beam. In this way, even if the upper cover of the battery has no central channel, the arrangement of the parts to be installed can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery by the parts to be installed can be reduced, so that more battery cells can be arranged in a limited space body, which is conducive to improving the volumetric energy density of the battery, which in turn is beneficial to increasing the power of the battery. In addition, the flatness of the upper cover can be improved, and the probability of the upper cover vibrating and beating the electric device can be reduced, which is beneficial to improving the safety of the battery.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application and the prior art, the following briefly introduces the accompanying drawings required in the embodiments and the prior art. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the application, those skilled in the art can also obtain other embodiments according to these drawings.

Fig. 1 is a structural schematic diagram of a vehicle as an electrical device;

Fig. 2 is a structural schematic diagram of a battery;

Fig. 3 is the structural representation of the installation beam of the embodiment of the present application;

Fig. 4 is the enlarged schematic diagram of the M place of Fig. 3;

FIG. 5 is a schematic structural view of the mounting bracket of the embodiment of the present application;

FIG. 6 is an exploded schematic view of the mounting bracket and the limiting member of the embodiment of the present application.

Reference signs:

1-vehicle; 10-battery; 30-controller; 40-motor; 100-box; 101-top cover; 102-box shell; 200-battery unit; Fixed part; 312-connection part; 313-installation part; 314-space; 315-installation hole; 3151-blind hole; 316-ring groove; 317-sealing ring; Connecting hole; A-first part; B-second part; 400-installation beam; 600-piece to be installed; 700-high voltage wire harness.

Detailed ways

Embodiments of the technical solutions of the present application will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples, rather than limiting the protection scope of the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to To limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the description of the above drawings are intended to cover a non-exclusive inclusion.

In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and should not be understood as indicating or implying relative importance or implicitly indicating the number, specificity, or specificity of the indicated technical features. Sequence or primary-secondary relationship. In the description of the embodiments of the present application, "plurality" means two or more, unless otherwise specifically defined.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiment of the present application, the term "and/or" is only an association relationship describing associated objects, which means that there may be three relationships, such as A and/or B, which may mean: there is A, and there are A and B, there are three situations of B. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), similarly, "multiple groups" refers to more than two groups (including two), and "multiple pieces" refers to More than two pieces (including two pieces).

In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical" "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Radial", "Circumferential", etc. indicate the orientation or positional relationship based on the drawings Orientation or positional relationship is only for the convenience of describing the embodiment of the present application and simplifying the description, and does not indicate or imply 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 an implementation of the present application. Example limitations.

In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a fixed connection. Disassembled connection, or integration; it can also be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

With the continuous update of battery technology and the promotion of the market, batteries with high energy density have been widely used in many fields. Energy density refers to the electric energy released by the average unit volume or mass of the battery. How to increase the energy density of the battery, and then increase the capacity of the battery is an ongoing subject in the field of battery technology.

In the related art, the battery case includes an upper cover and a lower case. The lower box generally includes a longitudinal beam extending along the stacking direction of the battery cells and a cross beam adjacent to the longitudinal beam, which constitute a mounting beam fixedly installed with the upper cover. After the upper cover is fixedly connected with the installation beam, the upper cover and the inside of the lower box form a space for accommodating multiple battery cells. The interior of the battery box is usually provided with a central channel, on which are placed conductive connecting pieces for realizing series-parallel connection of multiple battery cells and high-voltage wire harnesses such as flexible flat cables (FFC) and tubes for collecting battery electrical information. Road and so on.

The inventor noticed that the above-mentioned battery accommodates components other than the battery cells, such as conductive connecting pieces, high-voltage wire harnesses, and pipelines, etc., into the battery box, resulting in a larger battery size and lower space utilization in the battery. It is not conducive to improving the energy density of the battery, which in turn is not conducive to improving the power of the battery.

Based on the above problems, the inventor has designed a mounting assembly after in-depth research, and the mounting assembly includes a mounting bracket. By fixing the conductive connecting piece of the battery, the high-voltage wire harness, the pipeline and other components on the mounting bracket, it is beneficial to improve the space utilization rate in the battery, and further to increase the power of the battery.

At the same time, based on the above-mentioned installation components, the inventor also proposes a battery, which has a relatively high space utilization rate and a large power capacity.

The batteries of the embodiments of the present application can be used, but not limited to, in electric devices such as vehicles, ships, or aircrafts. Electric devices can be but not limited to mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric boat toys, electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, spaceships, etc.

As shown in Figure 1, it is a schematic structural diagram of a battery 10 using an embodiment of the present application for an electrical device vehicle 1. The vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle or a hybrid vehicle. Or extended-range cars, etc. A motor 40 , a controller 30 and a battery 10 may be provided inside the vehicle 1 , and the controller 30 is used to control the battery 10 to supply power to the motor 40 . For example, the battery 10 may be provided at the bottom or front or rear of the vehicle 1 . The battery 10 can be used for power supply of the vehicle 1 , for example, the battery 10 can be used as an operating power source of the vehicle 1 , for a circuit system of the vehicle 1 , for example, for starting, navigating and running power requirements of the vehicle 1 . In another embodiment of the present application, the battery 10 can not only be used as an operating power source for the vehicle 1 , but can also be used as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

As shown in FIG. 2 , the battery 10 mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells 200 to provide higher voltage and capacity. For example, the battery 10 mentioned in this application may include a battery module or a battery pack. The battery 10 generally includes a case 100 for enclosing one or more battery cells 200 . The case 100 can prevent liquid or other foreign objects from affecting the charging or discharging of the battery cells 200 . Specifically, the box body 100 may include an upper cover 101 and a box shell 102, and the upper cover 101 and the box shell 102 are fastened together. The shapes of the upper cover 101 and the box case 102 may be determined according to the combined shape of a plurality of battery cells 200 .

A plurality of battery cells 200 can be connected in series and/or in parallel via poles for various applications. In some high-power applications such as electric vehicles, the application of the battery 10 includes three levels: battery cells 200, battery modules and battery packs. The battery module is formed by electrically connecting a certain number of battery cells 200 together and putting them in a frame in order to protect the battery cells 200 from external shock, heat, vibration, etc. The battery pack is the final state of the battery 10 system that is incorporated into the electric vehicle. Most of the current battery packs are made by assembling various control and protection systems such as a battery management system (BMS) and thermal management components on one or more battery modules. With the development of technology, the level of the battery module can be omitted, that is, the battery pack is formed directly from the battery cells 200 . This improvement enables the gravimetric energy density and volumetric energy density of the battery 10 system to be improved while the number of components is significantly reduced. The batteries mentioned in this application include battery modules or battery packs.

In the present application, the battery cell 200 may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium ion battery, a sodium-ion battery, or a magnesium-ion battery, which is not limited in the embodiment of the present application. The battery cell 200 may be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application. The battery cells 200 are generally divided into three types according to the packaging methods: cylindrical battery cells, square square battery cells and pouch battery cells, which are not limited in this embodiment of the present application.

As shown in FIGS. 3 to 5 , the first aspect of the present application provides a mounting assembly 300 for the battery 10 . The mounting assembly 300 includes a mounting bracket 310 , and the mounting bracket 310 includes a fixing portion 311 , a connecting portion 312 and a mounting portion 313 . The fixing part 311 is used to connect to the mounting beam 400 of the lower box body (not shown in the figure) of the battery 10, the connecting part 312 is connected to one side of the fixing part 311, and defines a part to be installed between the fixing part 311 and the fixing part 311. 600 passes through the space 314 of the mounting bracket 310 along a first direction, and the first direction is the extending direction of the mounting beam 400 . The mounting portion 313 is disposed on the connecting portion 312 , and the mounting portion 313 is used for mounting the upper cover (not shown) of the battery 10 .

The component to be installed 600 in the embodiment of the present application may include one or more of the high-voltage wire harness 700 in the battery 10 , a conductive connecting piece (such as a copper bar), and a pipeline.

The lower case refers to a base structure for carrying the battery cells 200 . Its interior is hollow for accommodating battery cells 200 . For example, for a quadrangular battery 10 lower box, it includes a frame formed by connecting longitudinal and transverse beams, a bottom plate and four side plates connected to the bottom plate. The lower box can be a base made of a metal material with certain strength (such as iron, copper, steel or alloy, etc.), so as to have better structural stability and load-bearing capacity.

The lower box includes a plurality of installation beams 400 distributed vertically and horizontally. For example, for the above-mentioned quadrangular battery 10 lower box, the installation beams 400 refer to the longitudinal beams or beams of the frame. That is to say, the installation beam 400 is a part of the lower box body, and the fixed connection between the lower box body and the upper cover can be realized through the installation beam 400 .

The upper cover refers to the packaging structure that is closed with the lower case of the battery 10 . The upper cover and the mounting beam 400 of the lower box can be fixedly connected by connecting pieces such as bolts and rivets, so as to form a closed space for accommodating the battery cells 200 . The junction of the upper cover and the lower box is the location where the installation assembly 300 of the embodiment of the present application is disposed. The material of the upper cover may also be iron, copper, steel or alloy. Generally, in the related art, a central passage is provided on the surface of the upper cover close to the lower case, for example, a groove structure formed by stamping. The high-voltage wire harness 700 inside the battery 10 , such as a flexible flat cable (FFC), conductive connecting strips, and pipelines, passes through and is fixed in the central channel.

The mounting bracket 310 refers to the upper cover and the lower box for connecting the battery 10 in the embodiment of the present application, and has a structure for the component 600 to be installed to pass through the space 314 of the mounting bracket 310 along the extending direction of the mounting beam 400 . The mounting bracket 310 integrates multiple functions into one body, which is beneficial to optimize the structure of the battery 10 . By realizing different functions, the mounting bracket 310 is divided into three parts: a fixing part 311 , a mounting part 313 and a connecting part 312 . The three parts of the mounting bracket 310 can be an integrated structure formed by casting, injection molding, etc.; they can also be connected and combined by three sub-components, and the specific method can be flexibly selected according to the actual cost and process difficulty.

The installation assembly 300 includes at least one installation bracket 310 , that is to say, the installation assembly 300 may include one installation bracket 310 or may include multiple installation brackets 310 . The specific number can be flexibly set according to the scale of the battery 10 .

In the embodiment of the present application, the installation bracket 310 is fixedly installed on the upper surface of the installation beam 400 through the fixing part 311 . An installation part 313 is provided on the installation bracket 310 , and the installation bracket 310 can be fixedly connected to the upper cover through the installation part 313 . Furthermore, a connecting part 312 is also provided on the mounting bracket 310, and there is a space 314 between the fixing part 311 and the connecting part 312 for the part 600 to be installed to pass through, and the part 600 to be installed can be placed on the upper cover and the installation beam 400 within the space 314 . In this way, even if the upper cover of the battery 10 has no central passage, the arrangement of the parts to be installed 600 can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery 10 by the parts to be installed can be reduced, so that more can be arranged in a limited space. More battery cells 200 are beneficial to increase the volumetric energy density of the battery 10 , which in turn is beneficial to increase the power of the battery 10 . In addition, the flatness of the upper cover can be improved to reduce the possibility of the upper cover vibrating and beating the electrical device, which is beneficial to improving the safety of the battery 10 .

As shown in FIG. 5 , in some embodiments of the present application, an installation hole 315 is defined on the top of the installation part 313 , and the installation hole 315 is used to fix the upper cover.

By setting the installation hole 315 , the upper cover can be fixedly connected to the installation part 313 through the connecting piece, and then the connection between the upper cover and the installation beam 400 can be realized. The connecting parts may be bolts, studs, nuts or rivets, etc., which are not limited in this application.

As shown in FIG. 5 , in some embodiments of the present application, the mounting hole 315 includes a blind hole 3151 opened on the top of the mounting portion 313 , and a threaded sleeve (not shown) embedded in the blind hole.

Blind hole 3151 refers to a hole that has a certain depth and does not go through the entire plate.

Threaded sleeves are also called wire screw sleeves, threaded wire sleeves, stainless steel screw sleeves, etc. It is a helical coil precisely formed by a high-strength, high-precision, smooth-surfaced cold-rolled diamond-shaped stainless steel wire, which can form standard threads. After the threaded sleeve is installed in the blind hole 3151, a high-precision internal thread conforming to international standards can be formed, and its various performances are better than those formed by tapping.

In this way, the upper cover can be connected to the mounting bracket 310 by screw fit. In order to reduce the weight of the battery 10, aluminum or aluminum alloy materials are usually used to make the casing, and the thread strength on aluminum materials is usually low. By setting the threaded sleeve in the blind hole 3151, on the one hand, the wear of the thread can be alleviated , reduce the conductive debris produced by thread wear, improve the safety of the battery, and on the other hand, help to improve the strength of the screw connection between the upper cover and the mounting part 313, and then help to improve the service life of the battery 10 box.

As shown in FIG. 5 , in some embodiments of the present application, an annular groove 316 is formed on the top of the mounting portion 313 , the annular groove 316 coincides with the axis of the mounting hole 315 , and a sealing ring 317 is disposed in the annular groove 316 .

The annular groove 316 refers to a groove machined around the top of the mounting part 313 . Usually, the surface of the annular groove 316 needs to be smooth and flat without burrs, so that the surface of the sealing ring 317 is close to the annular groove 316 to ensure the sealing effect and avoid damage to the sealing ring 317 by burrs.

The sealing ring 317 refers to a component used to close the gap between the structural components so that air or liquid cannot pass through the structural components. Common sealing rings 317 include O-rings, lip-shaped sealing rings, etc. O-rings and lip-shaped sealing rings achieve sealing through compression deformation of their sealing ports. Common materials for the sealing ring 317 include fluorine rubber, hydrogenated nitrile rubber, and the like.

By arranging the sealing ring 317 between the upper cover and the installation part 313, it is beneficial to improve the sealing performance between the upper cover of the battery 10 and the installation beam 400. Simultaneously, the seal ring 317 is placed in the annular groove 316, so that during assembly, it is also beneficial to reduce the probability of the seal ring 317 slipping out between the mounting portion 313 and the upper cover, thereby further ensuring the sealing effect.

Further, as shown in FIG. 5 , the installation part 313 includes a first part A connected to the connection part 312, a second part B arranged on the top of the first part A, and the cross-sectional area of the second part B is larger than that of the first part A. cross-sectional area.

In this way, it is beneficial to increase the contact area between the mounting part 313 and the upper cover of the battery 10, and it can also ensure that there is a larger contact surface pressure between the upper cover and the mounting part 313, thereby helping to improve the connection between the upper cover and the mounting beam 400. stability and sealing reliability.

As shown in FIG. 6 , in some embodiments of the present application, the mounting assembly 300 further includes a limiting member 318, which is located in the space 314 and detachably connected to the connecting portion 312. The limiting member 318 is used for The component to be installed 600 is confined within the space 314 .

The limiter 318 refers to a component that further limits the position of the component to be installed 600 on the installation bracket 310 . For example, the limiting member 318 can be a cable tie for binding; or, preferably, it can also be an S-shaped buckle as shown in FIG. On the other hand, the bottom surface of the S-shaped buckle can also cooperate with the surface of the fixing part 311 facing away from the mounting beam 400, so as to compress the conductive connecting piece of the battery 10, that is to say, the conductive connecting piece can be clamped on the Between the S-shaped buckle and the fixing part 311 .

By arranging the limiting member 318 , the component to be installed 600 is under the double constraints of the limiting component 318 and the mounting bracket 310 , which is beneficial to further improve the reliability of the mounting component 300 for fixing the component to be installed 600 .

As shown in FIG. 6 , in some embodiments of the present application, the mounting assembly 300 further includes an insulating sheet 319 disposed on surfaces of the fixing portion 311 and the connecting portion 312 located in the space 314 .

The insulating sheet 319 refers to a sheet-like structure for insulating between different components. The material of insulating sheet 319 can be divided into multiple, for example, insulating sheet 319 can comprise polyethylene terephthalate (PET), polypropylene (PP), polycarbonate (PC), polyvinyl chloride (PVC) and other materials.

Such setting is beneficial to improve the insulation performance of the component to be installed 600, the installation assembly 300 and the upper cover.

As shown in FIG. 5 and FIG. 6 , in some embodiments of the present application, a connecting hole 320 that cooperates with the limiting member 318 is opened on the connecting portion 312 .

The limiting member 318 can be connected to the connecting portion 312 through the connecting hole 320 . For example, the limiting member 318 is connected to the connecting portion 312 by threading the connecting hole 320; or, the limiting member 318 is connected to the connecting portion 312 by installing bolts, nuts and other connecting pieces on the connecting hole 320; or, The limiting member 318 is connected to the connecting portion 312 through an interference fit with the connecting hole 320 , which is not limited in this application.

In some embodiments of the present application, the fixing part 311 , the connecting part 312 and the mounting part 313 are integrally formed, and the fixing part 311 and the connecting part 312 are all plate-shaped structures.

The mounting bracket 310 with integral molding structure can be formed by casting or injection molding, which is not limited in this application.

Using the mounting bracket 310 with an integrated structure is beneficial to improve the convenience of connecting the mounting bracket 310 .

In some embodiments of the present application, the mounting bracket 310 is made of die-cast aluminum.

In this way, it is beneficial to improve the durability of the installation bracket 310 and reduce the weight of the installation bracket 310 .

In some other embodiments of the present application, the mounting bracket 310 is made of PA66+GF30.

PA66+GF30 refers to a material mixed with 30% glass fiber material in nylon 66 material, which has good heat resistance and aging resistance.

Such setting is beneficial to further reducing the weight of the mounting bracket 310 and at the same time improving the heat resistance and service life of the mounting bracket 310 .

Based on the various embodiments described above, referring to FIG. 3 to FIG. 6 , the present application proposes an installation assembly 300 . The installation assembly 300 includes a plurality of installation brackets 310 fixed on the installation beam 400 of the lower case of the battery 10 . The mounting bracket 310 includes a fixing portion 311 connected to the mounting beam, a mounting portion 313 connected to the upper cover, and a connecting portion 312 located between the mounting portion 313 and the fixing portion 311 and on the side of the fixing portion 311 . There is a space 314 between the fixing part 311 and the connecting part 312 through which the component to be installed 600 passes. The component to be installed 600 includes a conductive connecting piece and a high-voltage wire harness. A mounting hole 315 and an annular groove 316 are defined on the top of the mounting portion 313 , the annular groove 316 coincides with the axis of the mounting hole 315 , and a sealing ring 317 is disposed in the annular groove 316 . The mounting hole 315 is used to connect with the upper cover and is squeezed and sealed by the sealing ring 317 . The installation assembly 300 also includes a limiting member 318 , which is an S-shaped buckle, and a connection hole 320 matching the S-shaped buckle is opened on the connecting portion 312 . The S-shaped buckle is threadedly connected to the connecting part 312 to fix the high-voltage wire harness; in addition, the bottom surface of the S-shaped buckle can also cooperate with the surface of the fixing part 311 away from the mounting beam 400, thereby compressing the conductive wire of the battery 10. Connecting piece. Further, an insulating sheet 319 is also provided on the surface of the fixing part 311 and the connecting part 312 located in the space 314, for insulating the conductive connecting sheet or the high-voltage wire harness from the upper cover or the installation beam.

The installation assembly 300 of the embodiment of the present application transfers the high-voltage wire harness and the conductive connecting piece of the battery 10 from the inside of the original battery to the installation assembly 300 between the installation beam 400 and the upper cover of the battery 10 . While realizing the fixed connection between the lower case and the upper cover, the arrangement of the parts to be installed 600 can be facilitated, and the occupation of the inner space of the lower case of the battery 10 by the parts to be installed 600 can be reduced, so that more batteries can be arranged in a limited space. The battery cell 200 is beneficial to improve the space utilization rate and volumetric energy density in the battery 10 , and further helps to increase the power of the battery 10 .

The second aspect of the present application proposes a battery 10, including a lower box, an upper cover, and the installation assembly 300 according to the first aspect, the lower box includes a mounting beam 400, the fixing part 311 is connected to the installing beam 400, and the fixing part 311 and the space 314 defined by the connection part 312 faces the lower box body, and the upper cover is installed on the installation part 313 .

In the battery 10 of the embodiment of the present application, the installation assembly 300 is arranged on the installation beam 400 of the lower box, and the to-be-installed part 600 is fixed on the installation bracket 310 of the installation assembly 300, thereby helping to improve the space utilization rate in the battery 10, and then It is beneficial to increase the power of the battery 10 . The installation bracket 310 is installed on the upper surface of the installation beam 400 through the fixing part 311 . An installation part 313 is provided on the installation bracket 310 , and the installation bracket 310 can be fixedly connected to the upper cover through the installation part 313 . Further, a connecting part 312 is also provided on the mounting bracket 310, and there is a space between the fixing part 311 and the connecting part 312 for the passage of the part 600 to be installed, and the part 600 to be installed can be placed on the upper cover and the installation beam 400 in the space between. In this way, even if the upper cover of the battery 10 has no central passage, the arrangement of the parts to be installed 600 can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery 10 by the parts to be installed can be reduced, so that more can be arranged in a limited space. More battery cells 200 are beneficial to increase the volumetric energy density and battery capacity of the battery 10 . In addition, the flatness of the upper cover can be improved to reduce the possibility of the upper cover vibrating and beating the electrical device, which is beneficial to improving the safety of the battery 10 . The third aspect of the present application proposes an electrical device, including the battery 10 described in the second aspect above.

The electric device in the embodiment of the present application uses the battery 10 described in the second aspect as a power supply system. The battery 10 includes a mounting assembly 300 , and the mounting assembly 300 includes a mounting bracket 310 . The installation bracket 310 is installed on the upper surface of the installation beam 400 through the fixing part 311 . An installation part 313 is provided on the installation bracket 310 , and the installation bracket 310 can be fixedly connected to the upper cover through the installation part 313 . Further, a connecting part 312 is also provided on the mounting bracket 310, and there is a space between the fixing part 311 and the connecting part 312 for the passage of the part 600 to be installed, and the part 600 to be installed can be placed on the upper cover and the installation beam 400 in the space between. In this way, even if the upper cover of the battery 10 has no central passage, the arrangement of the parts 600 to be installed can be facilitated. At the same time, the occupation of the internal space of the lower box of the battery 10 by the parts to be installed 600 can be reduced, so that more battery cells 200 can be arranged in a limited space, which is conducive to improving the volumetric energy density of the battery 10, and further to increasing the battery capacity. 10 power, increase the use time of electrical devices. In addition, the flatness of the upper cover can also be improved, reducing the probability of the battery vibrating against the electric device, which is beneficial to improving the safety of the battery 10 and the electric device.

The fourth aspect of the present application proposes a method for manufacturing a battery 10, including:

Provide a lower box, the lower box includes a mounting beam 400;

Provide a mounting assembly 300, the mounting assembly 300 includes a mounting bracket 310, the mounting bracket 310 includes a fixing part 311, a connecting part 312 and a mounting part 313,

Connect the fixed part 311 to the mounting beam 400; the connecting part 312 is connected to one side of the fixed part 311, the space defined between the connecting part 312 and the fixed part 311 faces the lower box, and the mounting part 313 is arranged on the connecting part 312 ;

provide a cover;

Install the upper cover on the installation portion 313 .

The battery 10 manufactured by the manufacturing method of the battery 10 according to the embodiment of the present application is provided with the mounting assembly 300 on the mounting beam 400 of the lower box, and the mounting component 600 is fixed on the mounting bracket 310 of the mounting assembly 300, thereby facilitating the improvement of The utilization rate of the space in the battery 10 is further beneficial to increase the power of the battery 10 . The installation bracket 310 is installed on the upper surface of the installation beam 400 through the fixing part 311 . An installation part 313 is provided on the installation bracket 310 , and the installation bracket 310 can be fixedly connected to the upper cover through the installation part 313 . Further, a connecting part 312 is also provided on the mounting bracket 310, and there is a space between the fixing part 311 and the connecting part 312 for the passage of the part 600 to be installed, and the part 600 to be installed can be placed on the upper cover and the installation beam 400 in the space between. In this way, even if the upper cover of the battery 10 has no central passage, the arrangement of the parts to be installed 600 can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery 10 by the parts to be installed can be reduced, so that more can be arranged in a limited space. More battery cells 200 are beneficial to increase the volumetric energy density of the battery 10 and the power of the battery 10 . In addition, the flatness of the upper cover can be improved to reduce the possibility of the upper cover vibrating and beating the electrical device, which is beneficial to improving the safety of the battery 10 .

The first providing device is used to provide the lower box body, and the lower box body includes the installation beam 400;

The second providing device is used to provide the mounting assembly 300, the mounting assembly 300 includes a mounting bracket 310, and the mounting bracket 310 includes a fixing part 311, a connecting part 312 and a mounting part 313;

The third providing device is used for providing the upper cover;

The assembly device is used to connect the fixed part 311 to the mounting beam 400, the connecting part 312 is connected to one side of the fixed part 311, so that the space defined between the connecting part 312 and the fixed part 311 faces the lower box body, the mounting part 313 It is arranged on the connection part 312 , and the upper cover is installed on the installation part 313 .

The battery 10 produced by the battery manufacturing equipment of the embodiment of the present application is provided with a mounting assembly 300 on the mounting beam 400 of the lower box, and the mounting component 600 is fixed on the mounting bracket 310 of the mounting assembly 300, thereby facilitating the improvement of the battery 10. The utilization rate of the space inside is beneficial to increase the power of the battery 10 . The installation bracket 310 is installed on the upper surface of the installation beam 400 through the fixing part 311 . An installation part 313 is provided on the installation bracket 310 , and the installation bracket 310 can be fixedly connected to the upper cover through the installation part 313 . Further, a connecting part 312 is also provided on the mounting bracket 310, and there is a space between the fixing part 311 and the connecting part 312 for the passage of the part 600 to be installed, and the part 600 to be installed can be placed on the upper cover and the installation beam 400 in the space between. In this way, even if the upper cover of the battery 10 has no central passage, the arrangement of the parts to be installed 600 can be facilitated, and at the same time, the occupation of the inner space of the lower box of the battery 10 by the parts to be installed can be reduced, so that more can be arranged in a limited space. More battery cells 200 are beneficial to increase the volumetric energy density of the battery 10 and the power of the battery 10 . In addition, the flatness of the upper cover can be improved to reduce the possibility of the upper cover vibrating and beating the electrical device, which is beneficial to improving the safety of the battery 10 .

The above is only a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in this application Replacement should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A mounting assembly for a battery, characterized in that the mounting assembly includes a mounting bracket, and the mounting bracket includes:

a fixing part, the fixing part is used to connect to the installation beam of the lower box of the battery;

A connecting part, the connecting part is connected to one side of the fixing part, and defines a space between the fixing part and the fixing part for the part to be installed to pass through the installation bracket along a first direction, and the first direction is the extension direction of the installation beam;

An installation part, the installation part is arranged on the connection part, and the installation part is used for installing the upper cover of the battery.
The mounting assembly according to claim 1, wherein a mounting hole is defined on the top of the mounting part, and the mounting hole is used to fix the upper cover.
The installation assembly according to claim 2, wherein the installation hole comprises a blind hole opened on the top of the installation part, and a threaded sleeve is embedded in the blind hole.
The installation assembly according to claim 2 or 3, wherein an annular groove is formed on the top of the installation part, the annular groove coincides with the axis of the installation hole, and a sealing ring is arranged in the annular groove.
The installation assembly according to any one of claims 1 to 4, wherein the installation part comprises a first part connected to the connection part, a second part arranged on the top of the first part, and the second part The cross-sectional area is larger than the cross-sectional area of the first part.
The installation assembly according to claim 1, characterized in that, the installation assembly further comprises a limiter, the limiter is located in the space, and is detachably connected to the connecting part, the limiter The part is used to limit the part to be installed in the space.
The mounting assembly according to claim 1, further comprising an insulating sheet, the insulating sheet is disposed on surfaces of the fixing portion and the connecting portion located in the space.
The installation assembly according to claim 6, characterized in that, a connection hole matched with the limiting member is opened on the connection part.
The mounting assembly according to any one of claims 1 to 8, wherein the fixing part, the connecting part and the mounting part are integrally formed, and both the fixing part and the connecting part are plate-shaped structures.
The installation assembly according to claim 1, wherein the installation bracket is made of die-cast aluminum or PA66+GF30.
A battery, characterized in that it comprises a lower box, an upper cover, and the mounting assembly according to any one of claims 1 to 10, the lower box includes a mounting beam, and the fixing part is connected to the mounting beam , the space defined by the fixing part and the connecting part faces the lower box body, and the upper cover is installed on the installation part.
An electrical device, characterized by comprising the battery according to claim 11.
A method of manufacturing a battery, comprising:

A lower box is provided, the lower box includes a mounting beam;

Provide a mounting assembly, the mounting assembly includes a mounting bracket, the mounting bracket includes a fixing part, a connecting part and a mounting part,

The fixing part is connected to the installation beam; the connecting part is connected to one side of the fixing part, and the space defined between the connecting part and the fixing part faces the lower box, and the installation The part is arranged on the connecting part;

provide a cover;

Install the upper cover on the installation part.
A battery manufacturing equipment, characterized in that it comprises:

The first providing device is used to provide the lower box, the lower box includes a mounting beam;

The second providing device is used to provide a mounting assembly, the mounting assembly includes a mounting bracket, and the mounting bracket includes a fixing part, a connecting part and a mounting part;

The third providing device is used for providing the upper cover;

an assembly device for connecting the fixing part to the installation beam, the connecting part is connected to one side of the fixing part so that the space defined between the connecting part and the fixing part faces the Referring to the lower box body, the installation part is arranged on the connection part, and the upper cover is installed on the installation part.