CN216354656U - A box subassembly, battery package and consumer for battery package - Google Patents
A box subassembly, battery package and consumer for battery package Download PDFInfo
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- CN216354656U CN216354656U CN202123050369.8U CN202123050369U CN216354656U CN 216354656 U CN216354656 U CN 216354656U CN 202123050369 U CN202123050369 U CN 202123050369U CN 216354656 U CN216354656 U CN 216354656U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application provides a box subassembly, battery package and consumer for battery package. The box subassembly includes the box, lid and sampling component, and the lid is connected with the box, and the accommodation space that is used for settling battery module is injectd jointly to lid and box, and the sampling component includes sampling piece and at least one and sampling piece electric connection's electric connector, and sampling piece is used for transmitting sampling signal, and sampling piece sets up on the lid, and electric connector is used for contacting with the battery module of installing in accommodation space to gather battery module's sampling signal. According to the box body assembly for the battery pack, the sampling component can sample the battery module at the battery pack level, and the installation process of the sampling component is simplified.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a box body assembly for a battery pack, the battery pack and electric equipment.
Background
This section provides background information related to the present application and is not necessarily prior art.
In the using process of the battery system, information such as temperature, voltage and the like of the battery needs to be sampled so as to monitor the state of the battery in real time and ensure the safe operation of the battery system. In the related art, the battery sampling member is inconvenient to mount and is not strong in detachability.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a box subassembly, battery package and consumer for battery package to solve above-mentioned battery sampling component and install inconvenient and the not strong problem of detachability. The specific technical scheme is as follows:
an embodiment of a first aspect of the present application provides a case assembly for a battery pack, including: box, lid and sampling component. The cover body is connected with the box body, and the cover body and the box body jointly define an accommodating space for accommodating the battery module; the sampling component comprises a sampling piece and at least one electric connecting piece electrically connected with the sampling piece, the sampling piece is used for transmitting sampling signals, the sampling piece is arranged on the cover body, and the electric connecting piece is used for contacting with a battery module arranged in the accommodating space so as to collect the sampling signals of the battery module.
According to the case assembly for the battery pack, after the case body and the cover body are connected, the case body and the cover body jointly define the accommodating space for accommodating the battery modules. The battery module can be placed in the accommodating space when being assembled, and the sampling piece in the sampling component is arranged on the cover body, so that the sampling component and the cover body are integrated together. Therefore, in the process of covering the box body by the cover body, the sampling component can be assembled into the battery pack together with the cover body, and therefore the installation process of the sampling component is convenient. Further, after the sampling component is installed in the battery pack, the electric connecting piece of the sampling component is in contact with the battery module installed in the accommodating space, the electric connecting piece is used for collecting sampling signals of the battery module, and the sampling component of the sampling component is used for transmitting the sampling signals of the battery module. In addition, when the case assembly is disassembled, the cover body is separated from the case body, so that the sampling member arranged on the cover body is taken out from the battery pack along with the cover body, the electric connecting piece connected with the sampling member is disconnected with the battery module, and the sampling member comprising the sampling member and the electric connecting piece is taken out from the battery pack, therefore, the disassembling process of the sampling member is simpler.
In addition, the case assembly for the battery pack according to the embodiment of the present application may further have the following additional technical features:
in some embodiments of the present application, the sampling member is a combined structure of one or more of a flexible flat cable, a printed circuit board and a flexible printed circuit board, and a sampling terminal interface is provided on the sampling member, and the sampling terminal interface is used for electrically connecting with a battery management system of the battery pack. The flexible flat cable, the printed circuit board and the flexible printed circuit board are combined to form a combined structure, the combined structure is used in the sampling piece, the size of the sampling piece occupied in the battery pack can be reduced, the size and the weight of the battery pack are further reduced, the cost is saved, and meanwhile, the flexible flat cable and the flexible printed circuit board have good bending folding performance and can be mounted under a complex space structure in the battery pack. In addition, be provided with the sampling terminal interface on the sample spare, sampling terminal interface and battery management system electric connection of battery package can make the sampling signal transmission that the sampling component gathered to battery management system monitors and adjusts the state of battery package.
In some embodiments of the present application, the electrical connection is a resilient metal connection structure. Elastic metal connection structure has elasticity, closes the back when lid and box lid, and under the fixed action of lid and box, elastic metal connection structure is in compression state, under the effect of elastic force, makes elastic metal connection structure compress tightly the battery module, under the condition that need not to use technologies such as welding, the connection of electric connector and battery module still can remain reliable, has simplified the mounting process, also is convenient for electric connector's dismantlement simultaneously.
In some embodiments of the present application, the sampling member is secured to the cover by one or more of riveting, snapping, gluing, and injection molding. Can select fixed mode in a flexible way according to actual need between sampling spare and the lid, wherein adopt riveting, joint, the mode of veneer can satisfy the fixed reliable of sampling spare simultaneously, also be convenient for the dismantlement of sampling spare to change, injection moulding then can save the assemble duration of sampling spare and lid, also can guarantee the assembly precision of sampling spare simultaneously.
An embodiment of the second aspect of the present application provides a battery pack, including: the battery module comprises a box body assembly and at least one battery module. The box body assembly comprises a box body, a cover body and a sampling component, wherein the cover body is connected with the box body, the cover body and the box body jointly define an accommodating space for accommodating the battery module, the sampling component comprises a sampling piece and at least one electric connecting piece electrically connected with the sampling piece, the sampling piece is used for transmitting a sampling signal, and the sampling piece is arranged on the cover body; the battery module sets up in accommodation space, and electric connector contacts with the battery module to gather the sampling signal of battery module.
According to the battery pack of the embodiment of the application, the box body and the cover body of the box body assembly jointly define the accommodating space for accommodating the battery module, the battery module is arranged in the accommodating space, the box body assembly is further provided with the sampling component, and the sampling component in the sampling component is arranged on the cover body, so that the sampling component and the cover body are integrated together. Therefore, in the process of covering the box body by the cover body, the sampling component can be assembled into the battery pack together with the cover body by adopting the component, and therefore, the installation process of the sampling component is more convenient. Further, after the sampling component is installed in the battery pack, the electric connecting piece of the sampling component is in contact with the battery module installed in the accommodating space, the electric connecting piece is used for collecting sampling signals of the battery module, and the sampling component of the sampling component is used for transmitting the sampling signals of the battery module. In addition, when the case assembly is disassembled, the cover body is separated from the case body, so that the sampling member arranged on the cover body is taken out from the battery pack along with the cover body, the electric connecting piece connected with the sampling member is disconnected with the battery module, and the sampling member comprising the sampling member and the electric connecting piece is taken out from the battery pack, therefore, the disassembling process of the sampling member is simpler.
In some embodiments of the present application, the sampling member is a combined structure of one or more of a flexible flat cable, a printed circuit board and a flexible printed circuit board, and a sampling terminal interface is provided on the sampling member, and the sampling terminal interface is used for being electrically connected with a battery management system. One or any combination of the flexible flat cable, the printed circuit board and the flexible printed circuit board is applied to the sampling piece, so that the volume of the sampling piece occupied in the battery pack can be reduced, the volume and the weight of the battery pack are further reduced, the cost is saved, and meanwhile, the flexible flat cable and the flexible printed circuit board have good bending folding performance and can meet the requirement of installation of the flexible flat cable and the flexible printed circuit board under a complex space structure in the battery pack. In addition, be provided with the sampling terminal interface on the sample spare, sampling terminal interface and battery management system electric connection of battery package can make the sampling signal transmission that the sampling component gathered to battery management system monitors and adjusts the state of battery package.
In some embodiments of the present application, the electrical connector is a resilient metal connector structure, and/or the sampling member is secured to the cover by one or more of riveting, snapping, gluing, and injection molding. Elastic metal connection structure has elasticity, closes the back when lid and box lid, and under the fixed action of lid and box, elastic metal connection structure is in compression state, under the effect of elastic force, makes elastic metal connection structure compress tightly the battery module, under the condition that need not to use technologies such as welding, the connection of electric connector and battery module still can remain reliable, has simplified the mounting process, also is convenient for electric connector's dismantlement simultaneously.
In some embodiments of the present application, a battery module includes a plurality of battery cells and an electrical connection tab connected with a post of the battery cell, the electrical connection tab being in contact with the electrical connection tab. The electric connection sheet transmits the current of the battery monomer, the electric connection sheet is in contact with the electric connection piece, and the information acquisition of the battery module by the electric connection piece can be realized.
In some embodiments of the present application, the battery pack further includes a battery management system, and the sampling element is electrically connected to the battery management system to transmit the sampling signal to the battery management system. The sampling piece can transmit the collected sampling signals to the battery management system, and the battery management system can intelligently manage and maintain each battery unit, prevent the battery from being overcharged and overdischarged, prolong the service life of the battery and monitor the state of the battery.
An embodiment of a third aspect of the present application provides an electric device, including the battery pack in any embodiment of the second aspect.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings. In the drawings:
fig. 1 is a schematic structural view of a vehicle to which a battery pack according to an embodiment of the present application is applied;
fig. 2 is an exploded view of a battery pack according to some embodiments of the present application;
fig. 3 is a schematic view of the internal structure of a battery pack according to some embodiments of the present application.
The reference numbers are as follows:
1-a vehicle;
10-battery pack, 20-controller, 30-motor;
100-box assembly, 110-box, 120-cover, 130-sampling component, 131-sampling component, 132-electric connector, 133-sampling terminal interface, 200-battery module, 210-battery monomer, 220-electric connecting sheet and 300-battery management system.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
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 application. The appearances of the 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
Among the correlation technique, multiunit power battery among the battery system carries out the series-parallel connection, in order to reach certain voltage and capacity requirement, and the electric core between the different groups need carry out real-time voltage, the collection of information such as temperature, so as to feed back battery management system, reach the guard action to battery charge-discharge, adopt solitary sampling member among the battery system usually, through the welding, connected mode such as riveting, install the sampling member on the battery module, the installation of sampling member is stopped step in the module level, fail to simplify battery system's production processes well, in addition, the installation of sampling member is inconvenient and the detachability is not strong.
Based on above consideration, in order to facilitate the installation of the sampling component and satisfy the detachability thereof, the applicant installs the sampling component on the box assembly of the battery pack through the intensive research, and at the battery pack level, the sampling component is connected with the battery module in order to realize the collection to the sampling information, has simplified the sampling component installation, and the detachability of the sampling component is strong.
In the case assembly for the battery pack, after the case body and the cover body are connected, the case body and the cover body jointly define a containing space for containing the battery module, the battery module is placed in the containing space, the sampling component comprises the sampling piece and at least one electric connecting piece electrically connected with the sampling piece, wherein the sampling piece is arranged on the cover body, so that the sampling piece is assembled into the battery pack along with the cover body in the process of covering the case body by the cover body, the electric connecting piece electrically connected with the sampling piece is also assembled into the battery pack along with the sampling piece, and further, the sampling component comprising the sampling piece and the electric connecting piece is assembled into the battery pack, so that the installation process of the sampling component is more convenient. After the sampling component is installed in the battery pack, the electric connecting piece of the sampling component is in contact with the battery module installed in the accommodating space, the electric connecting piece is used for collecting sampling signals of the battery module, and the sampling component of the sampling component is used for transmitting the sampling signals of the battery module. In addition, when the case assembly is disassembled, the cover body is disassembled from the case body, the sampling piece arranged on the cover body is separated from the battery pack along with the cover body, the electric connecting piece connected with the sampling piece is also separated from the battery pack along with the sampling piece, and the sampling component comprising the sampling piece and the electric connecting piece is further separated from the battery pack, so that the disassembling process of the sampling component is simpler.
The battery cell disclosed in the embodiment of the application can be used in electric devices such as vehicles, ships or aircrafts, but not limited thereto. The power supply system with the electric device formed by the single batteries, the batteries and the like disclosed by the application can be used, so that the sampling component is arranged on the box body assembly, the sampling component can realize the sampling of the battery module at the battery cladding level, and the installation process of the sampling component is simplified.
The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like.
For convenience of description, the following embodiments are described by taking an electric device of some embodiments of the present application as an example of a vehicle 1.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1 according to some embodiments of the present disclosure. The vehicle 1 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range-extended automobile and the like. The interior of the vehicle 1 is provided with a battery pack 10, and the battery pack 10 may be provided at the bottom or the head or the tail of the vehicle 1. The battery pack 10 may be used for power supply of the vehicle 1, and for example, the battery pack 10 may serve as an operation power source of the vehicle 1. The vehicle 1 may further include a controller 20 and a motor 30, the controller 20 being configured to control the battery pack 10 to power the motor 30, for example, for start-up, navigation, and operational power requirements while the vehicle 1 is traveling.
In some embodiments of the present application, the battery pack 10 may be used not only as an operating power source of the vehicle 1, but also as a driving power source of the vehicle 1, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of a battery pack 10 according to some embodiments of the present application. The battery pack 10 includes a case assembly 100 and a battery module 200, and the battery module 200 is accommodated in the case assembly 100. The case assembly 100 is used to provide a receiving space for the battery module 200, and the case assembly 100 may have various structures. In some embodiments, the case assembly 100 may include a case body 110 and a cover body 120, the case body 110 and the cover body 120 being closed to each other, the case body 110 and the cover body 120 together defining a receiving space for receiving the battery module 200.
Embodiments of the first aspect of the present application provide a case assembly 100 for a battery pack 10. Referring to fig. 3, the case assembly 100 includes: a case 110, a cover 120, and a sampling member 130. The cover 120 is coupled to the case 110, and the cover 120 and the case 110 together define a receiving space for housing the battery module 200. The sampling member 130 includes a sampling member 131 and at least one electrical connection member 132 electrically connected to the sampling member, the sampling member 131 is used to transmit a sampling signal, the sampling member 131 is disposed on the cover body 110, and the electrical connection member 132 is used to contact the battery module 200 mounted in the receiving space to collect the sampling signal of the battery module 200.
The case assembly 100 is an assembly for forming an internal environment of the battery module 200, wherein the formed internal environment can be used to house the battery module 200 and other components. The case assembly 100 includes a cover 120 and a case 110, wherein the case 110 has an opening, and the cover 120 covers the case 110 to form an internal environment of the case assembly 100. The case 110 and cover 120 cover and the resulting case assembly 100 may be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical, a hexagonal prism, etc. Specifically, the shape of the case assembly 100 may be determined according to the specific shape and size of the battery module 200, and the materials of the case 110 and the cover 120 may be various, for example, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, and the like, which is not limited in this embodiment.
The sampling member 130 is a component for collecting various operating parameters of the battery module 200 in the battery pack 10. The sampling member 130 includes a sampling member 131 and at least one electrical connection member 132 electrically connected to the sampling member, wherein the electrical connection member 132 is connected to the battery module 200 to collect a sampling signal, the sampling member 131 is used to transmit the sampling signal, and specifically, the sampling signal collected by the sampling member 130 may be other signals such as voltage and temperature of the battery module 200.
According to the case assembly 100 for the battery pack 10 of the embodiment of the present application, after the case 110 and the cover 120 are coupled, the case 110 and the cover 120 together define a receiving space for accommodating the battery module 200. The battery module 200 may be placed in the receiving space when assembled, and the sampling member 131 of the sampling member 130 is disposed on the cover 120 such that the sampling member 130 and the cover 120 are integrated. Thus, the sampling member 130 can be assembled into the battery pack 10 together with the cover 120 during the process of closing the case 110 with the cover 120, and thus, the process of mounting the sampling member 130 is facilitated. Further, after the sampling member 130 is mounted in the battery pack 10, the electrical connection member 132 thereof is in contact with the battery module 200 mounted in the receiving space, the electrical connection member 132 is used to collect the sampling signal of the battery module 200, and the sampling member 131 thereof is used to transmit the sampling signal of the battery module 200, so that the sampling member 130 mounted on the case assembly 100 can sample the battery module 200. In addition, when the case assembly 100 is disassembled, the cover 120 is separated from the case 110, so that the sampling piece 131 provided on the cover 120 is taken out of the battery pack 10 along with the cover 120, the electrical connection member 132 connected to the sampling piece 131 is disconnected from the battery module 200, and the sampling member 130 including the sampling piece 131 and the electrical connection member 132 is taken out of the battery pack 10, whereby the disassembling process of the sampling member 130 is also relatively simple.
In some embodiments of the present application, the sampling member 131 is one of a flexible flat cable, a printed circuit board, and a flexible printed circuit board, or a combination of multiple ones of the flexible flat cable, the sampling member 131 is provided with a sampling terminal interface 133, and the sampling terminal interface 133 is configured to be electrically connected to the battery management system 300 of the battery pack.
The flexible flat cable is a novel data cable formed by laminating polyethylene terephthalate insulating materials and extremely thin tinned flat copper wires through a high-tech automatic equipment production line, and has the advantages of softness, random bending and folding, thin thickness, small volume, simple connection, convenient disassembly, easy solution on electromagnetic shielding and the like.
The printed circuit board is an important electronic component, is a support body of the electronic component, is a carrier for electrically interconnecting the electronic components, can replace complex wiring, realizes electrical connection among all components in a circuit, simplifies the assembly and welding work of electronic products, reduces the wiring workload in the traditional mode, greatly lightens the labor intensity of workers, reduces the volume of the whole machine, reduces the product cost, and improves the quality and the reliability of electronic equipment. The printed circuit board has good product consistency, can adopt a standardized design, and is beneficial to realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the exchange and maintenance of the whole machine product are facilitated.
The combined structure of one or more of the flexible flat cable, the printed circuit board and the flexible printed circuit board is applied to the sampling piece 131, so that the volume occupied by the sampling piece 131 in the battery pack 10 can be reduced, the volume and the weight of the battery pack 10 are further reduced, the cost is saved, and meanwhile, the flexible flat cable and the flexible printed circuit board have good bending folding performance, and the installation of the flexible flat cable and the flexible printed circuit board under the complex space structure in the battery pack 10 can be met. In addition, the sampling piece 131 is provided with a sampling terminal interface 133, the sampling terminal interface 133 is electrically connected with the battery management system 300 of the battery pack 10, and the sampling signal collected by the sampling member 130 can be transmitted to the battery management system 300, so that the battery management system 300 can monitor and adjust the state of the battery pack 10.
In some embodiments of the present application, electrical connector 132 is a resilient metal connection structure.
The resilient metal connection structure may be, for example, a spring probe, which is an excellent carrier for electrical signal transmission, and the spring probe generally includes a needle shaft, a needle tube, and a spring. The spring is arranged in the needle tube, and the needle shaft is inserted in the needle tube. When the needle shaft is pressed by the component, the spring is compressed, the needle shaft moves axially, the outer surface of the needle shaft is in contact with the inner surface of the needle tube, and the electric signal is transmitted from the needle shaft to the needle tube.
The elastic metal connection structure has elasticity, and after the cover body 120 and the box body 110 are covered, under the fixing action of the cover body 120 and the box body 110, the elastic metal connection structure is in a compression state, and under the action of the elastic force, the elastic metal connection structure compresses the battery module 200, so that the connection between the electric connection member 132 and the battery module 200 can be reliably maintained under the condition of not using welding and other processes, the installation process is simplified, and meanwhile, the electric connection member 132 is convenient to detach.
In other embodiments, the electrical connector 132 may also be a non-elastic metal connection structure. In this case, the non-elastic metal connection structure may be directly abutted to the battery module 200, or corresponding connection holes may be formed in the battery module 200, and the non-elastic metal electrical connector 132 may be fixed in the connection holes by means of clamping, so that the electrical connector 132 may be fixed and the electrical connector 132 may be conveniently detached.
In some embodiments of the present application, the sampling member 131 is fixed to the cover 120 by one or more of riveting, clamping, gluing, and injection molding. The fixing mode can be flexibly selected according to actual needs between the sampling piece 131 and the cover body 120, wherein riveting, clamping and gluing modes are adopted, the sampling piece 131 can be reliably fixed, the sampling piece 131 can be conveniently detached and replaced, the injection molding can save the assembling time of the sampling piece 131 and the cover body 120, and meanwhile, the assembling precision of the sampling piece 131 can also be ensured.
According to some embodiments of the present application, the case assembly 100 includes a case 110, a cover 120, and a sampling member 130. The cover 120 is coupled to the case 110, and the cover 120 and the case 110 together define a receiving space for housing the battery module 200; the sampling member 130 includes a flexible flat cable and at least one spring probe electrically connected to the flexible flat cable, the flexible flat cable is used for transmitting a sampling signal, the flexible flat cable is disposed on the cover 110, one end of the flexible flat cable is provided with a sampling terminal interface 133, and the sampling terminal interface 133 is electrically connected to the battery management system 300. The battery module 200 is composed of a plurality of battery cells 210, an electrical connection sheet 220 is arranged on the battery module 200, and a spring probe is in contact with the electrical connection sheet 220 to collect a sampling signal of the battery module 200.
According to the case assembly 100 of the embodiment of the present application, after the case 110 and the cover 120 are coupled, the case 110 and the cover 120 together define a receiving space for accommodating the battery module 200. The battery module 200 may be placed in the receiving space when assembled. The sampling member 130 includes a flexible flat cable and at least one spring probe electrically connected to the flexible flat cable, wherein the flexible flat cable is disposed on the cover 120 such that the flexible flat cable is assembled into the battery pack 10 along with the cover 120 in a process of closing the case 110 by the cover 120, the spring probe electrically connected to the flexible flat cable is also assembled into the battery pack 10 along with the flexible flat cable, and further, the sampling member 130 including the flexible flat cable and the spring probe is assembled into the battery pack 10, whereby an assembling process of the sampling member 130 is facilitated. After the sampling member 130 is mounted in the battery pack 10, the spring probe thereof contacts the battery module 200 mounted in the receiving space, the spring probe is used for collecting the sampling signal of the battery module 200, and the flexible flat cable thereof is used for transmitting the sampling signal of the battery module 200, so that the sampling member 130 mounted on the case assembly 100 can realize the sampling of the battery module 200. In addition, when the case assembly 100 is disassembled, the cover 120 is separated from the case 110, so that the flexible flat cable provided on the cover 120 is taken out of the battery pack 10 along with the cover 120, the spring probes connected with the flexible flat cable are disconnected from the battery module 200, and the sampling member 130 including the flexible flat cable and the spring probes is taken out of the battery pack 10, whereby the disassembling process of the sampling member 130 is also relatively simple.
In addition, the flexible flat cable is light in weight and thin in thickness, so that the volume occupied by the sampling piece in the battery pack can be reduced by using the flexible flat cable, the volume and the weight of the battery pack are further reduced, the cost is saved, and meanwhile, the flexible flat cable has good bending folding performance and can meet the requirement of installation of the flexible flat cable in a complex space structure in the battery pack. The spring probe is an excellent electric signal transmission carrier, the spring probe has elasticity, and after the spring probe is connected with the battery module, the spring probe releases elastic force, so that the connection between the electric connecting piece and the battery module can still be reliably maintained under the condition of not using welding and other processes, the installation process is simplified, and meanwhile, the electric connecting piece is convenient to disassemble.
An embodiment of the second aspect of the present application proposes a battery pack 10, including: a case assembly 100, and at least one battery module 200. The case assembly 100 comprises a case body 110, a cover body 120 and a sampling member 130, wherein the cover body 120 is connected with the case body 110, the cover body 120 and the case body 110 jointly define a containing space for accommodating the battery module 200, the sampling member 130 comprises a sampling piece 131 and at least one electrical connector 132 electrically connected with the sampling piece, the sampling piece 131 is used for transmitting a sampling signal, and the sampling piece 131 is arranged on the cover body 120; the battery module 200 is disposed in the receiving space, and the electrical connector 132 is in contact with the battery module to collect a sampling signal of the battery module 200.
According to the battery pack 10 of the embodiment of the present application, the case body 110 and the cover body 120 of the case body assembly 100 jointly define a receiving space for accommodating the battery module 200, the battery module 200 is disposed in the receiving space, the case body assembly 100 is further provided with the sampling member 130, and the sampling piece 131 of the sampling member 130 is disposed on the cover body 120, so that the sampling member 130 and the cover body 120 are integrated together. Thus, the sampling member 130 can be assembled into the battery pack 10 together with the cover 120 during the process of closing the case 110 with the cover 120, and thus, the process of mounting the sampling member 130 is facilitated. Further, after the sampling member 130 is mounted in the battery pack 10, the electrical connection member 132 thereof is in contact with the battery module 200 mounted in the receiving space, the electrical connection member 132 is used to collect the sampling signal of the battery module 200, and the sampling member 131 thereof is used to transmit the sampling signal of the battery module 200, so that the sampling member 130 mounted on the case assembly 100 can sample the battery module 200. In addition, when the case assembly 100 is disassembled, the cover 120 is separated from the case 110, so that the sampling piece 131 provided on the cover 120 is taken out of the battery pack 10 along with the cover 120, the electrical connection member 132 connected to the sampling piece 131 is disconnected from the battery module 200, and the sampling member 130 including the sampling piece 131 and the electrical connection member 132 is taken out of the battery pack 10, whereby the disassembling process of the sampling member 130 is also relatively simple.
In some embodiments of the present application, the sampling member 131 is one of a flexible flat cable, a printed circuit board, and a flexible printed circuit board, or a combination of multiple ones of the flexible flat cable, the sampling member 131 is provided with a sampling terminal interface 133, and the sampling terminal interface 133 is configured to be electrically connected to the battery management system 300.
One or any combination of the flexible flat cable, the printed circuit board and the flexible printed circuit board is applied to the sampling piece 131, so that the volume occupied by the sampling piece 131 in the battery pack 10 can be reduced, the volume and the weight of the battery pack 10 are further reduced, the cost is saved, and meanwhile, the good bending folding performance of the flexible flat cable and the flexible printed circuit board can meet the requirement of installation of the flexible flat cable and the flexible printed circuit board in the battery pack 10 under a complex space structure. In addition, the sampling piece 131 is provided with a sampling terminal interface 133, the sampling terminal interface 133 is electrically connected with the battery management system 300 of the battery pack 10, and the sampling signal collected by the sampling member 130 can be transmitted to the battery management system 300, so that the battery management system 300 can monitor and adjust the state of the battery pack 10.
In some embodiments of the present application, electrical connector 132 is a resilient metal connection structure.
The resilient metal connector 132 may be a spring probe. The elastic metal connection structure has elasticity, and after the cover body 120 and the box body 110 are covered, under the fixing action of the cover body 120 and the box body 110, the elastic metal connection structure is in a compression state, and under the action of the elastic force, the elastic metal connection structure compresses the battery module 200, so that the connection between the electric connection member 132 and the battery module 200 can be still reliable under the condition of not using welding and other processes, the installation process is simplified, and meanwhile, the electric connection member is convenient to detach.
In other embodiments, the electrical connector 132 may also be a non-elastic metal connection structure. In this case, the non-elastic metal connection structure may be directly abutted to the battery module 200, or corresponding connection holes may be formed in the battery module 200, and the non-elastic metal electrical connector 132 may be fixed in the connection holes by means of clamping, so that the electrical connector 132 may be fixed and the electrical connector 132 may be conveniently detached.
In some embodiments of the present application, the sampling member 131 is fixed to the cover 120 by one or more of riveting, clamping, gluing, and injection molding. The fixing mode can be flexibly selected according to actual needs between the sampling piece 131 and the cover body 120, wherein riveting, clamping and gluing modes are adopted, the sampling piece 131 can be reliably fixed, the sampling piece 131 can be conveniently detached and replaced, the injection molding can save the assembling time of the sampling piece 131 and the cover body 120, and meanwhile, the assembling precision of the sampling piece 131 can also be ensured.
In some embodiments of the present application, the battery module 200 includes a plurality of battery cells 210 and an electrical connection sheet 220 connected to the poles of the battery cells 210, and the electrical connection member 132 is in contact with the electrical connection sheet 220.
The battery cell 210 may be a secondary battery or a primary battery, and may also be a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery, which is not particularly limited in this application. The battery cell 210 may be cylindrical, flat, rectangular parallelepiped, or other shape. The battery module 200 is formed by connecting a plurality of battery cells 210 in series or in parallel or in series-parallel, where in series-parallel is to say that a plurality of battery cells 210 are connected in series or in parallel.
The electrical connection sheet 220 is a device for transmitting current, the shape of the electrical connection sheet 220 may be rectangular, trapezoidal, triangular, stepped, etc., and the material of the electrical connection sheet 220 may be copper nickel plating, pure nickel tape, nickel plated steel, etc., which is not particularly limited in this application. The electric connection sheet 220 transmits the current of the battery cells 210, and the electric connection sheet 220 is in contact with the electric connection members 132, so that the electric connection members 132 can collect information of the battery module 200.
In some embodiments of the present application, the battery pack 10 further includes a battery management system 300, and the sampling element 131 is electrically connected to the battery management system 300 to transmit the sampling signal to the battery management system 300.
The sampling piece 131 can transmit the collected sampling signal to the battery management system 300, and the battery management system 300 can intelligently manage and maintain each battery unit, prevent the battery from being overcharged and overdischarged, prolong the service life of the battery and monitor the state of the battery.
An embodiment of a third aspect of the present application provides an electric device, including the battery pack 10 in any of the embodiments of the second aspect.
Since the electric equipment in the embodiment of the present application and the battery pack in the embodiment of the second aspect are based on the same inventive concept, the electric equipment in the embodiment of the present application can obtain all the advantages of the battery pack in the embodiment of the second aspect.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (10)
1. A case assembly for a battery pack, comprising:
a box body;
the cover body is connected with the box body, and the cover body and the box body jointly define an accommodating space for accommodating a battery module;
the sampling component, the sampling component including sampling spare and at least one with sampling spare electric connection's electric connector, the sampling spare is used for transmitting sampling signal, the sampling spare sets up on the lid, electric connector be used for with install in accommodation space the battery module contact, in order to gather the sampling signal of battery module.
2. The box body assembly for the battery pack according to claim 1, wherein the sampling piece is a combined structure of one or more of a flexible flat cable, a printed circuit board and a flexible printed circuit board, and a sampling terminal interface is arranged on the sampling piece and is used for being electrically connected with a battery management system of the battery pack.
3. The case assembly for battery packs as claimed in claim 1 or 2, wherein the electrical connection member is an elastic metal connection structure.
4. A case assembly for a battery pack according to claim 1 or 2, wherein the sampling member is fixed to the cover by one or more of riveting, clamping, gluing and injection molding.
5. A battery pack, comprising:
the battery module comprises a box body assembly, a cover body and a sampling component, wherein the cover body is connected with the box body, the cover body and the box body jointly define an accommodating space for accommodating a battery module, the sampling component comprises a sampling piece and at least one electric connecting piece electrically connected with the sampling piece, the sampling piece is used for transmitting a sampling signal, and the sampling piece is arranged on the cover body;
the battery module is arranged in the accommodating space, and the electric connecting piece is in contact with the battery module so as to collect sampling signals of the battery module.
6. The battery pack according to claim 5, wherein the sampling member is a combination of one or more of a flexible flat cable, a printed circuit board and a flexible printed circuit board, and a sampling terminal interface is provided on the sampling member and is used for electrically connecting with a battery management system.
7. The battery pack of claim 5, wherein the electrical connector is a resilient metal connection structure, and/or the sampling member is fixed to the cover by one or more of riveting, clamping, gluing, and injection molding.
8. The battery pack according to any one of claims 5 to 7, wherein the battery module includes a plurality of battery cells and an electrical connection tab connected to a post of the battery cell, the electrical connection tab being in contact with the electrical connection tab.
9. The battery pack according to any one of claims 5 to 7, further comprising a battery management system, wherein the sampling member is electrically connected to the battery management system to transmit the sampling signal to the battery management system.
10. An electric device characterized by comprising the battery pack according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123050369.8U CN216354656U (en) | 2021-12-07 | 2021-12-07 | A box subassembly, battery package and consumer for battery package |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123050369.8U CN216354656U (en) | 2021-12-07 | 2021-12-07 | A box subassembly, battery package and consumer for battery package |
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| CN216354656U true CN216354656U (en) | 2022-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116435691A (en) * | 2023-06-13 | 2023-07-14 | 深圳海辰储能控制技术有限公司 | Battery pack and electric equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116435691A (en) * | 2023-06-13 | 2023-07-14 | 深圳海辰储能控制技术有限公司 | Battery pack and electric equipment |
| CN116435691B (en) * | 2023-06-13 | 2023-08-29 | 深圳海辰储能控制技术有限公司 | Battery pack and electric equipment |
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