CN218867329U

CN218867329U - Battery and power consumption device

Info

Publication number: CN218867329U
Application number: CN202222724495.5U
Authority: CN
Inventors: 吴凯; 洪显仁
Original assignee: Contemporary Amperex Technology Co Ltd; Contemporary Amperex Intelligence Technology Shanghai Ltd
Current assignee: Contemporary Amperex Technology Co Ltd; Contemporary Amperex Intelligence Technology Shanghai Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-14
Anticipated expiration: 2032-10-17

Abstract

The application provides a battery and a power consumption device. The battery comprises a battery monomer, a sampling wire harness, a circuit board, a conductive piece and a supporting component; the sampling wire harness is used for collecting the working condition information of the single battery; the circuit board is provided with a plug hole; the conductive piece is inserted in the inserting hole and is used for electrically connecting the circuit board and the sampling wire harness; the supporting component is used for supporting the conductive piece. The application provides a battery, the simple structure of electrically conductive piece occupies the space of battery inside less, has simplified the connection structure of circuit board and sampling pencil, is favorable to simplifying the inner structure of battery.

Description

Battery and power consumption device

Technical Field

The present application relates to the field of battery technologies, and in particular, to a battery and a power consumption device.

Background

Batteries are widely used in electronic devices such as mobile phones, notebook computers, battery cars, electric automobiles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, electric tools, and the like.

In the development of battery technology, in addition to improving the performance of the battery, how to simplify the structure of the battery on the basis of ensuring the performance of the battery is also a problem to be solved urgently in the battery technology.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a battery and a power consumption device, which can simplify the structure of the battery.

In a first aspect, an embodiment of the present application provides a battery, which includes a battery cell, a sampling harness, a circuit board, a conductive member, and a support assembly; the sampling wire harness is used for collecting the working condition information of the single battery; the circuit board is provided with a plug hole; the conductive piece is inserted in the inserting hole and is used for electrically connecting the circuit board and the sampling wire harness; the supporting component is used for supporting the conductive piece.

According to the battery that this application embodiment provided, insert the spliced eye of locating the circuit board through setting up electrically conductive piece to connect the sampling pencil, still be provided with supporting component and be used for supporting electrically conductive piece, realize the sampling pencil through electrically conductive piece and circuit board be connected, the simple structure of electrically conductive piece occupies that the space inside the battery is less, has simplified the connection structure of circuit board and sampling pencil, is favorable to simplifying the inner structure of battery.

In some embodiments, one of the support component and the circuit board has a limiting convex part, and the other has a limiting concave part, and the limiting convex part is matched with the limiting concave part. The supporting assembly and the circuit board are matched through the limiting convex part and the limiting concave part, the accuracy of butt joint of the conductive piece and the inserting hole can be improved, and the inserting difficulty of the conductive piece and the inserting hole is favorably reduced.

In some embodiments, the support assembly has a via hole, and the conductive member is inserted into the via hole.

The via hole can carry out better location to electrically conductive piece to guarantee to electrically conductive piece and sampling pencil's connecting wire and the convenience of being connected of the spliced eye of circuit board. In the embodiment that the number of the conductive pieces is multiple, the distance of the via holes can be reasonably set according to the distance between the connecting wires in the sampling wire harness and the distance between the plugging holes in the circuit board, so that the conductive pieces can be controlled to have corresponding distances, the conductive pieces can be connected with a plurality of connecting wires in the sampling wire harness in a welding mode and the like through one-time alignment, the plugging connection of a plurality of plugging holes in the circuit board can be realized through some alignments, and the conductive pieces can be connected with the sampling wire harness and the circuit board conveniently.

In some embodiments, the conductive member has a first subsection and a second subsection which are connected with each other, one of the first subsection and the second subsection is connected with the circuit board, the other one is connected with the sampling beam, and the sectional area of the first subsection is smaller than that of the second subsection; the via has a minimum cross-section that covers the cross-section of the first subsection and the second subsection covers the minimum cross-section.

Therefore, by reasonably setting the length of the first subsection and the blocked position of the second through hole, the specific size of the conductive piece passing through the through hole can be controlled, and the conductive piece circuit board and the conductive piece and the sampling wire harness are more convenient to be connected.

In some embodiments, the support assembly includes a support portion and a connection portion, the connection portion is connected to one side of the support portion, and the plurality of vias are disposed in the connection portion and spaced apart from each other along a first direction, which intersects an axial direction of the vias. Set up a plurality of via holes and set up along first direction interval, can fix a position electrically conductive piece better to electrically conductive piece is connected with sampling pencil and circuit board.

In some embodiments, the support assembly further includes a guide protrusion, the guide protrusion is located on one side of the connecting portion, which is close to the first sub-segment in the axial direction, and is disposed on at least one side of the via hole in the first direction. The direction is protruding to provide the guide effect for electrically conductive piece at the in-process that electrically conductive piece passed the via hole, reduces electrically conductive piece and passing the in-process of via hole, because of the off tracking can't align the risk of being connected with spliced eye or sampling pencil.

In some embodiments, the second subsection includes a bending portion, the bending portion is bent along a second direction and is used for electrically connecting the circuit board, and the second direction intersects with the axial direction; the support assembly is further provided with a limiting boss, the limiting boss is located on one side, close to the first subsection, of the connecting portion in the axial direction, and is arranged on at least one side, in the first direction, of the through hole.

Therefore, after the first sub-section of the conductive piece penetrates through the via hole, the second sub-section is bent, a certain limiting effect can be provided for the conductive piece due to the limiting boss in the bending process, and the risk that the portion, close to the first sub-section, of the conductive piece deforms to influence the connection stability of the conductive piece and the sampling wire harness is reduced.

In some embodiments, the plug holes are spaced apart in a first direction and a second direction, the second direction intersecting the first direction. So, be favorable to reducing the risk that the excessive space of spliced eye edge first direction or second direction occupy the circuit board to improve the compact structure nature that circuit board and sampling pencil are connected.

In some embodiments, the sampling harness has a deformation configured to deform when the sampling harness is subjected to a pulling force. So, when the sampling pencil received the pulling force, can reduce the tensile stress that the sampling pencil bore through the deformation of deformation portion, be favorable to reducing the risk of sampling pencil fatigue damage, and then improve the working life of sampling pencil.

In a second aspect, an embodiment of the present application provides an electric device, including the battery provided in any of the above embodiments, where the battery is used to provide electric energy.

The power consumption device provided by the embodiment of the application has the same technical effect due to the adoption of the battery provided by any one of the embodiments, and the details are not repeated herein.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a battery provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a battery module in a battery provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a battery cell in a battery provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a battery provided in an embodiment of the present application with part of the structure omitted;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic structural diagram of a battery management system in a battery according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a battery provided by an embodiment of the present application in a state where a support assembly and a conductive member are connected;

fig. 9 is a schematic structural diagram of another battery provided in an embodiment of the present application in a state where a support assembly and a conductive member are connected;

fig. 10 is a schematic structural diagram of a support assembly in a battery provided by an embodiment of the present application;

fig. 11 is a partial enlarged view at B in fig. 10;

fig. 12 is a schematic structural diagram of another support assembly in a battery provided in an embodiment of the present application;

FIG. 13 is an enlarged view of a portion of FIG. 12 at C;

fig. 14 is a schematic structural diagram of a sampling harness in a battery provided in an embodiment of the present application.

In the drawings, the drawings are not necessarily drawn to scale.

Description of the labeling:

1. a vehicle; 1a, a motor; 1b, a controller;

10. a battery; 11. a first tank portion; 12. a second tank portion;

20. a battery module;

30. a battery cell;

31. a housing; 311. a housing; 311a, an opening; 312. an end cap; 32. an electrode assembly;

40. sampling a wire harness; 41. a deformation section;

50. a battery management system; 51. a circuit board; 51a, a plug hole; 511. a limiting concave part;

60. a conductive member; 61. a first subsection; 62. a second sub-segment; 621. a bending part;

70. a support assembly; 70a, a via hole; 71. a limit convex part; 721. a support portion; 722. a connecting portion; 73. a guide projection; 74. a limiting boss;

80. an insulating guard;

x, axial direction; y, a first direction; z, a second direction.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application, but are not intended to limit the scope of the application, i.e., the application is not limited to the described embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. "vertical" is not strictly vertical but is within the tolerance of the error. "parallel" is not strictly parallel but within the tolerance of the error.

Reference in the specification 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 specification. 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 present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

In this application, the battery cell may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, and the embodiment of the present application is not limited thereto. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in an encapsulation manner: the cylindrical battery monomer, the square battery monomer and the soft package battery monomer are not limited in the embodiment of the application.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, etc. Batteries generally include a case for enclosing one or more battery cells. The box can avoid liquid or other foreign matters to influence the charging or discharging of battery monomer.

The battery monomer comprises an electrode assembly and electrolyte, wherein the electrode assembly consists of a positive plate, a negative plate and a separator. The single battery mainly depends on metal ions to move between the positive plate and the negative plate to work. The positive plate comprises a positive current collector and a positive active substance layer, wherein the positive active substance layer is coated on the surface of the positive current collector, the current collector which is not coated with the positive active substance layer protrudes out of the current collector which is coated with the positive active substance layer, and the current collector which is not coated with the positive active substance layer is laminated to be used as a positive electrode lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece includes negative pole mass flow body and negative pole active substance layer, and the surface of negative pole mass flow body is scribbled to the negative pole active substance layer, and the mass flow body protrusion in the mass flow body of having scribbled the negative pole active substance layer of not scribbling the negative pole active substance layer is as negative pole utmost point ear after the mass flow body of not scribbling the negative pole active substance layer is range upon range of. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. The material of the diaphragm can be PP or PE, etc. In addition, the electrode assembly may have a winding structure or a lamination structure, and the embodiment of the present application is not limited thereto.

After finding out the problem of the complicated structure of the battery, the inventors have systematically analyzed and studied the structure and assembly process of the battery. As a result, it is found that a collection harness is usually connected to a battery cell or other related structure to collect the working condition information of the battery cell, and the information collected by the collection harness needs to be transmitted to a battery management system. The collection wire harness is usually required to be electrically connected with a circuit board in the battery management system through a connector to realize information transmission, the connector usually needs to occupy more space inside a battery cell, and the connector is complex in structure and not beneficial to simplifying the structure of the battery.

Based on the above problems discovered by the inventors, the inventors improved the structure of the battery, and the technical solution described in the embodiments of the present application is applicable to the battery and the electric device using the battery.

The battery provided according to the embodiment of the application comprises a battery monomer, a sampling wire harness, a circuit board, a conductive piece and a support component; and the wiring harness is used for acquiring the working condition information of the battery monomer. The circuit board is provided with a plug hole, and the conductive piece is inserted in the plug hole and is used for electrically connecting the circuit board and the sampling wire harness. The supporting component is used for supporting the conductive piece.

The battery that this application embodiment provided inserts the spliced eye of locating the circuit board through setting up electrically conductive piece to connect the sampling pencil, still be provided with supporting component and be used for supporting electrically conductive piece, realize that the sampling pencil passes through the connection of electrically conductive piece and circuit board, the simple structure of electrically conductive piece occupies that the space inside the battery is less, has simplified the connection structure of circuit board and sampling pencil, is favorable to simplifying the inner structure of battery.

The electric device can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool and the like. The vehicle can be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like; spacecraft include aircraft, rockets, space shuttles, spacecraft, and the like; electric toys include stationary or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric airplane toys, and the like; the electric power tools include metal cutting electric power tools, grinding electric power tools, assembly electric power tools, and electric power tools for railways, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, electric impact drills, concrete vibrators, and electric planers. The embodiment of the present application does not specifically limit the above-mentioned electric devices.

For convenience of explanation, the following embodiments will be described with an electric device as an example of a vehicle.

As shown in fig. 1, a battery 10 is provided inside a vehicle 1. The battery 10 may be disposed at the bottom or the head or the tail of the vehicle 1. The battery 10 may be used for power supply of the vehicle 1, and for example, the battery 10 may serve as an operation power source of the vehicle 1.

The vehicle 1 may further include a controller 1b and a motor 1a. The controller 1b is used to control the battery 10 to supply power to the motor 1a, for example, for operation power demand at the time of starting, navigation, and traveling of the vehicle 1.

In some embodiments of the present application, the battery 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, the battery 10 includes battery cells (not shown in fig. 2). The battery 10 may also include a case for housing the battery cells.

The box is used for holding battery monomer, and the box can be various structural style. In some embodiments, the tank may comprise a first tank portion 11 and a second tank portion 12. The first tank portion 11 and the second tank portion 12 cover each other. The first case portion 11 and the second case portion 12 together define a receiving space for receiving the battery cells. The second casing part 12 may be a hollow structure with one open end, the first casing part 11 is a plate-shaped structure, and the first casing part 11 covers the open side of the second casing part 12 to form a casing with an accommodating space; the first tank portion 11 and the second tank portion 12 may be both hollow structures with one side open. The open side of the first casing portion 11 covers the open side of the second casing portion 12 to form a casing having an accommodation space. Of course, the first tank portion 11 and the second tank portion 12 may be various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In order to improve the sealing performance of the connected first box portion 11 and second box portion 12, a sealing member, such as a sealant or a sealing ring, may be disposed between the first box portion 11 and the second box portion 12.

Assuming that the first box portion 11 covers the second box portion 12, the first box portion 11 may also be referred to as an upper box cover, and the second box portion 12 may also be referred to as a lower box body.

In the battery 10, one or more battery cells may be provided. If the number of the battery units is multiple, the multiple battery units can be connected in series or in parallel or in series-parallel. The series-parallel connection means that a plurality of battery monomers are connected in series and in parallel. The plurality of battery cells may be directly connected in series or in parallel or in series-parallel, and then the whole body formed by the plurality of battery cells is accommodated in the case, or the plurality of battery cells may be connected in series or in parallel or in series-parallel to form the battery module 20. The plurality of battery modules 20 are connected in series or in parallel or in series-parallel to form a whole, and are accommodated in the case.

As shown in fig. 5, the Battery 10 further includes a sampling wire harness 40 and a Battery Management System (BMS) 50, the sampling wire harness 40 may be connected to components such as sensors for collecting working condition information of the Battery cell, such as temperature, pressure or circuit, and transmitting the collected information to the Battery management system 50, and the Battery management system 50 may further perform preliminary calculation or processing on the collected data to preliminarily determine the working condition of the Battery 10. Optionally, the battery management system 50 may also send control signals to the battery 10 to facilitate the battery 10 to perform further operations.

In some embodiments, as shown in fig. 3, fig. 3 is a schematic structural view of the battery module 20 shown in fig. 2. In the battery module 20, there are a plurality of battery cells 30. The plurality of battery cells 30 are connected in series or in parallel or in series-parallel to form the battery module 20. The plurality of battery modules 20 are connected in series or in parallel or in series-parallel to form a whole, and are accommodated in the case.

In some embodiments, the plurality of battery cells 30 in the battery module 20 may be electrically connected to each other by a bus member, so as to realize parallel connection, series connection or parallel connection of the plurality of battery cells 30 in the battery module 20.

Referring to fig. 4, fig. 4 is an exploded view of the battery cell 30 shown in fig. 3. The battery cell 30 includes an electrode assembly 31 and a case 32, the case 32 having a receiving cavity 32a, the electrode assembly 31 being received in the receiving cavity 32 a.

In some embodiments, the case 32 may include a case 321 and an end cap 322, the case 321 is a hollow structure with one side open, and the end cap 322 covers the opening of the case 321 and forms a sealing connection to form a sealed space for accommodating the electrode assembly 31 and the electrolyte.

In assembling the battery cell 30, the electrode assembly 31 may be first placed in the case 321, the cap 322 may be fitted to the opening of the case 321, and the electrolyte may be injected into the case 321 through the electrolyte injection port formed in the cap 322.

In some embodiments, the housing 32 may also be used to contain an electrolyte, such as an electrolyte. The housing 32 may take a variety of structural forms.

Fig. 4 shows a schematic structural diagram of a battery cell provided in an embodiment of the present application.

The housing 321 may be various shapes, such as a cylinder, a rectangular parallelepiped, and the like. The shape of the case 321 may be determined according to the specific shape of the electrode assembly 31. For example, if the electrode assembly 31 has a cylindrical structure, the case 321 may alternatively have a cylindrical structure. If the electrode assembly 31 has a rectangular parallelepiped structure, the case 321 may have a rectangular parallelepiped structure. In fig. 4, the case 321 and the electrode assembly 31 are each exemplarily in a rectangular parallelepiped structure.

The material of the housing 321 may be various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiment of the present invention is not limited thereto.

The electrode assembly 31 accommodated in the case 321 may be one or more. In fig. 4, there are two electrode assemblies 31 accommodated in the case 321.

As shown in fig. 5 and 6, a battery 10 provided according to an embodiment of the present application includes a battery cell 30, a sampling harness 40, a circuit board 51, a conductive member 60, and a support assembly 70. The sampling wire harness 40 is used for collecting the working condition information of the battery cell 30, the circuit board 51 is provided with a plug hole 51a, and the conductive member 60 is inserted in the plug hole 51a and is used for electrically connecting the circuit board 51 and the sampling wire harness 40. The support member 70 is used to support the conductive member 60.

The sampling wire harness 40 may be connected to a sensor, such as a temperature sensor, a pressure sensor, a stress sensor, or a current sensor, of course, the sampling wire harness 40 may also be connected to a strain gauge or other component for acquiring the operating condition of the battery cell 30, and the sampling wire harness 40 may be used to transmit the acquired information of the temperature, the pressure, the stress, or the current of the battery cell 30 to the circuit board 51 through the conductive member 60.

According to the specific information of the battery cell 30 that the sampling wire harness 40 needs to collect, the sampling wire harness 40 may be connected to the outside of the housing of the battery cell 30, or the sampling wire harness 40 may be connected to the related components inside the housing of the battery cell 30.

The sampling harness 40 may be a Flexible Printed Circuit (FPC) including a plurality of connection wires insulated from each other, each of which may be connected to one of the conductive members 60 and may be inserted into the insertion hole 51a of the Circuit board 51 through the conductive member 60 to transmit information.

The circuit board 51 may be a part of the battery management system 50 in the battery 10, and the circuit board 51 has a connection line integrated therein to transmit the received information to a corresponding module for subsequent information processing.

Optionally, the battery management system 50 may further include a communication connector connected to the circuit board 51 to enable information interaction between different battery management systems 50 through the communication connector.

The circuit board 51 may have one plugging hole 51a, or the circuit board 51 has a plurality of plugging holes 51a, and the plurality of plugging holes 51a may be arranged in an array, or the plurality of plugging holes 51a may be arranged at any position on the circuit board 51 as required.

The conductive member 60 is inserted into the insertion hole 51a and electrically connected to the insertion hole 51a to electrically connect the circuit board 51 and the sampling wire harness 40. The number of the conductive members 60 may be one or more, and for example, the number of the conductive members 60 and the number of the insertion holes 51a may be arranged in a one-to-one correspondence.

The conductive member 60 may be a pin or a wire, and one end of the conductive member 60 is connected to the connection wire of the sampling harness 40 and the other end is inserted into the insertion hole 51 a. The material of the conductive member 60 may be copper, iron, or other material having conductive properties.

The connection of the conductive member 60 to the sampling harness 40 may be a soldered connection or the like.

The support assembly 70 is used for supporting the conductive member 60 to position or fix the conductive member 60, so as to reduce the risk of connection failure of the conductive member 60 with the plug hole 51a due to shaking. The conductive member 60 may penetrate through the support member 70, or the conductive member 60 may be fixed to any surface of the support member 70. The support assembly 70 may be disposed on the casing of the battery 10, or the support assembly 70 may be disposed on the circuit board 51, and of course, the support assembly 70 may also be disposed on the battery cell 30.

In the process of connecting the conductive member 60, one end of the conductive member 60 may be connected to one of the sampling harness 40 and the circuit board 51, the other end of the conductive member 60 may be inserted into the supporting component 70, and the other end of the conductive member 60 may be connected to the other of the sampling harness 40 and the circuit board 51. For example, one end of a plurality of conductive members 60 may be connected to the sampling harness 40 by a soldering process, and one connection wire for each conductive member 60 to connect to the sampling harness 40 may be provided. Then, the other end of the conductive member 60 is inserted into the supporting component 70 and fixed, and at this time, after the conductive member 60 is bent, the other end of the conductive member 60 is inserted into the insertion hole 51a of the circuit board 51.

The battery 10 that this application embodiment provided, through setting up the spliced eye 51a of electrically conductive piece 60 and inserting and locate circuit board 51 to connect sampling pencil 40, still be provided with supporting component 70 and be used for supporting electrically conductive piece 60, realize sampling pencil 40 through being connected of electrically conductive piece 60 with circuit board 51, electrically conductive piece 60's simple structure, it is less to occupy the inside space of battery 10, the connection structure of circuit board 51 and sampling pencil 40 has been simplified, be favorable to simplifying the inner structure of battery 10.

As shown in fig. 7 and 8, in some embodiments, one of the support member 70 and the circuit board 51 has a limit protrusion 71, and the other has a limit recess 511, and the limit protrusion 71 is engaged with the limit recess 511.

The position-limiting convex part 71 and the position-limiting concave part 511 can be matched by a pin shaft and a pin hole to preliminarily position the support component 70 and the circuit board 51, and the position-limiting convex part 71 and the position-limiting concave part 511 can be arranged to be in interference fit, or the position-limiting convex part 71 and the position-limiting concave part 511 can move relatively to adjust the position of the support component 70 relative to the circuit board 51 as required to adjust the position of the conductive part 60 relative to the plug hole 51 a.

It can be understood that, in the process of inserting and connecting the conductive elements 60 and the inserting holes 51a, in order to ensure the accuracy of the butt joint of the conductive elements 60 and the inserting holes 51a, especially in the process of butting a plurality of conductive elements 60 and a plurality of inserting holes 51a, the supporting component 70 and the circuit board 51 are arranged to be matched through the limiting convex part 71 and the limiting concave part 511, so that the accuracy of the butt joint of the conductive elements 60 and the inserting holes 51a can be improved, and the difficulty of inserting and connecting the conductive elements 60 and the inserting holes 51a can be reduced.

As shown in fig. 9, in some embodiments, the support member 70 has a via hole 70a, and the conductive member 60 is inserted in the via hole 70a.

The via hole 70a may better position the conductive member 60 to ensure the convenience of connecting the conductive member 60 with the connection wire of the sampling harness 40 and the plug hole 51a of the circuit board 51.

Alternatively, the vias 70a may be cylindrical, oval cylindrical, kidney shaped holes, or other irregular shapes.

In the embodiment that the number of the conductive pieces 60 is multiple, the distance of the via holes 70a can be reasonably set according to the distance between the connecting wires in the sampling wire harness 40 and the distance between the inserting holes 51a in the circuit board 51, so that the conductive pieces 60 can be connected with the connecting wires in the sampling wire harness 40 in a welding mode and the like through one-time alignment, and can be connected with the inserting holes 51a in the circuit board 51 in an inserting manner through one-time alignment, thereby facilitating the connection of the conductive pieces 60 with the sampling wire harness 40 and the circuit board 51.

With continued reference to fig. 9, in some embodiments, the conductive member 60 has a first subsection 61 and a second subsection 62 connected to each other, one of the first subsection 61 and the second subsection 62 is connected to the circuit board 51, the other is connected to the sampling beam 40, and the cross-sectional area of the first subsection 61 is smaller than the cross-sectional area of the second subsection 62. The via 70a has a minimum cross-section that covers the cross-section of the first subsection 61 and the second subsection 62 covers the minimum cross-section.

Optionally, the first subsection 61 may be connected to the circuit board 51, or the first subsection 61 may be connected to the sampling harness 40. Illustratively, the first subsection 61 is connected to the sampling beam 40, and the second subsection 62 is connected to the circuit board 51, since the cross-sectional area of the first subsection 61 is smaller than that of the second subsection 62, such an arrangement is more convenient for the connection of the conductive member 60 to the circuit board 51 and the sampling beam 40, respectively.

The smallest cross-section covers the cross-section of the first subsection 61, and the first subsection 61 may pass through the smallest cross-section of the via 70a. While the second subsection 62 covers the smallest cross-section, the second subsection 62 cannot pass through the smallest cross-section of the via 70a. In this way, the first subsection 61 of the conductive member 60 can first pass through the via hole 70a, during the process of passing, the first subsection 61 can smoothly pass through the via hole 70a, and when the end of the second subsection 62 close to the first subsection 61 meets the minimum cross section, or meets a certain portion before the minimum cross section, which is larger than the cross section of the second subsection 62, the second subsection 62 is blocked from passing through the via hole 70a, and the conductive member 60 is blocked from passing through the via hole 70a.

Optionally, the via 70a may have a step surface and the minimum cross-section may be at the location where the step surface is formed within the via 70a, or the via 70a may include a tapered bore section with the minimum cross-section at the end of the tapered bore section.

By properly setting the length of the first subsection 61 and the position where the second via 70a is blocked, the specific size of the conductive member 60 passing through the via 70a can be controlled, and the connection of the conductive member 60 with the circuit board 51 and the conductive member 60 with the sampling harness 40 can be further facilitated.

As shown in fig. 9 to 11, in some embodiments, the support assembly 70 includes a support portion 721 and a connection portion 722, the connection portion 722 is connected to one side of the support portion 721, and a plurality of via holes 70a are disposed on the connection portion 722 and spaced apart from each other along a first direction Y, which intersects with an axial direction X of the via holes 70a.

The supporting portion 721 may be connected to the circuit board 51, and the supporting portion 721 may be used to support the connecting portion 722 and the conductive member 60. The plurality of via holes 70a of the connection portion 722 are arranged at intervals, and the plurality of via holes 70a may be arranged at equal intervals, or the via holes 70a may be arranged at a corresponding interval according to the interval of the insertion holes 51a connected to the conductive members 60 corresponding to the via holes 70a.

The plurality of vias 70a may be arranged in a row along the first direction Y, or the plurality of vias 70a may be arranged in a plurality of rows along the first direction Y. Illustratively, the plurality of vias 70a may be arranged in a row along the first direction Y to reduce a space occupied by the vias 70a along an axis X perpendicular to the first direction Y and the vias 70a. The first direction Y intersects the axial direction X of the via hole 70a, the first direction Y may intersect the axial direction X of the via hole 70a at an acute angle, or the first direction Y may be perpendicular to the axial direction X of the via hole 70a.

The plurality of via holes 70a are disposed at intervals along the first direction Y, so that the conductive member 60 can be better positioned to facilitate connection of the conductive member 60 with the sampling harness 40 and the circuit board 51.

As shown in fig. 10 and 11, in some embodiments, the support assembly 70 further includes a guide protrusion 73, and the guide protrusion 73 is located on one side of the connecting portion 722 close to the first sub-segment 61 along the axial direction X and is disposed on at least one side of the through hole 70a along the first direction Y.

Alternatively, the guide protrusion 73 may be provided on one side of the via hole 70a in the first direction Y, or the guide protrusions 73 may be provided on both sides of the via hole 70a in the first direction Y.

A guide protrusion 73 may be disposed on one side of the via hole 70a along the first direction Y, or the guide protrusions 73 may be disposed on both sides of the via hole 70a along the first direction Y, so as to provide a limiting effect for both sides of the conductive component 60 along the first direction Y.

The guide protrusion 73 may have a square shape, or the guide protrusion 73 may be provided with an arc-shaped surface to be fitted with the conductive member 60. After one end of the first subsection 61 passes through the through hole 70a, the guide protrusion 73 provides a guiding function for the conductive member 60 in the process that the conductive member 60 passes through the through hole 70a, and reduces the risk that the conductive member 60 cannot be aligned and connected with the plug hole 51a or the sampling harness 40 due to deviation in the process that the conductive member 60 passes through the through hole 70a.

As shown in fig. 9, 12 and 13, in some embodiments, the second sub-segment 62 includes a bent portion 621, and the bent portion 621 is bent along a second direction Z and is used for electrically connecting the circuit board 51, and the second direction Z intersects with the axial direction X. The support assembly 70 further has a limiting boss 74, and the limiting boss 74 is located on one side of the connecting portion 722 close to the first subsection 61 along the axial direction X and is arranged on at least one side of the through hole 70a along the first direction Y.

Alternatively, the first direction Y, the second direction Z and the axial direction X may be perpendicular two by two. The second subsection 62 is bent along the second direction Z, and the second subsection 62 can be bent and then inserted into the insertion hole 51a, so that the space occupied by the conductive member 60 along the axial direction X is reduced, and the structural compactness of the conductive member 60, the sampling assembly and the circuit board 51 is improved.

The limiting boss 74 is arranged, so that the second subsection 62 can be bent after the first subsection 61 of the conductive member 60 penetrates through the via hole 70a, in the bending process, due to the existence of the limiting boss 74, a certain limiting effect can be provided for the conductive member 60, and the risk that the part of the conductive member 60 close to the first subsection 61 is deformed to influence the connection stability of the conductive member 60 and the sampling wire harness 40 is reduced.

The first sub-section 61 is connected with the sampling beam 40, and the first sub-section 61 can also be bent to facilitate the connection of the first sub-section 61 and the sampling beam 40.

In some embodiments, the insertion holes 51a are spaced along a first direction Y and a second direction Z intersecting the first direction Y.

The first direction Y, the second direction Z, and the axial direction X of the via hole 70a may be perpendicular two by two.

The arrangement of the plugging holes 51a at intervals along the first direction Y and the second direction Z is favorable for reducing the risk that the plugging holes 51a occupy too much space of the circuit board 51 along the first direction Y or the second direction Z, and is favorable for improving the structural compactness of the connection between the circuit board 51 and the sampling wire harness 40.

It should be noted that, in the present embodiment, the plugging holes 51a are disposed at intervals along the first direction Y and the second direction Z, but the through holes 70a of the supporting component 70 may be arranged only along the first direction Y, so as to reduce the space occupied by the supporting component 70 along the second direction Z. In the process of bending the first subsection 61 of the conductive member 60, the conductive member 60 is connected with the corresponding plug-in holes 51a arranged along the second direction Z by reasonably setting the bending position. Illustratively, the ends of the second sub-segments 62 connected to the plug holes 51a after the conductive members 60 are bent are arranged along the first direction Y and the second direction Z, so that the ends of the second sub-segments 62 are connected to the plug holes 51 a. Along the first direction Y, two adjacent conductive pieces 60 are respectively connected with two rows of plugging holes 51a adjacent along the second direction Z, so that the distance between the plugging holes 51a along the first direction Y is favorably increased, and the processing of the plugging holes 51a is facilitated.

As shown in fig. 14, in some embodiments, the sampling harness 40 has a deformation 41, and the deformation 41 is configured to deform when the sampling harness 40 is pulled.

Deformation portion 41 can be sampling pencil 40 have the fold or produce the part of bending deformation, and at the in-process of battery 10 work, the vibration of battery 10 can lead to the fact certain tensile to sampling pencil 40, can reduce sampling pencil 40's tensile stress through deformation of deformation portion 41 this moment, and then reduce sampling pencil 40 fatigue damage's risk, so be favorable to improving sampling pencil 40's working life. Alternatively, the sampling harness 40 may have a suitable size by deformation of the deformation portion 41 due to manufacturing errors during the installation process of the sampling harness 40, so as to better fit with various portions inside the battery 10.

In some embodiments, the battery 10 provided by the present embodiment includes a battery cell 30, a sampling harness 40, a circuit board 51, a conductive member 60, and a support assembly 70. The circuit board 51 is provided with a plurality of plug holes 51a arranged at intervals along the first direction Y and the second direction Z, the conductive piece 60 is cylindrical and made of copper, one end of the conductive piece 60 is inserted into the plug holes 51a, and the other end of the conductive piece 60 is connected with a connecting wire in the sampling wire harness 40, so that the circuit board 51 is electrically connected with the sampling wire harness 40, and information interaction is carried out. The support assembly 70 includes a support portion 721 and a connection portion 722, the connection portion 722 is disposed at one side of the support portion 721, the connection portion 722 has a plurality of via holes 70a spaced along the first direction Y, the via holes 70a have a minimum cross section, the conductive member 60 has a first subsection 61 and a second subsection 62, the cross section of the first subsection 61 is smaller than that of the second subsection 62, the minimum cross section covers the cross section of the first subsection 61, and the second subsection 62 covers the minimum cross section. In this way, the first subsection 61 can pass through any position of the via hole 70a, and the second subsection 62 can be blocked by the smallest cross section, that is, the via hole 70a has a limiting effect on the conductive member 60 to limit the insertion depth of the conductive member 60 along the axial direction X, so as to facilitate the connection of the conductive member 60 with the sampling harness 40 and the plug hole 51 a. The connecting portion 722 is provided with a guide protrusion 73 on a side close to the first subsection 61 along the axial direction X, and the guide protrusion 73 is located on at least one side of the via hole 70a along the first direction Y, so as to provide a guiding function for the conductive member 60 in the process that the first subsection 61 is inserted into the via hole 70a. The first sub-section 61 includes a bending portion 621, and the bending portion 621 is bent along the second direction Z and is configured to be electrically connected to the circuit board 51. The support assembly 70 further has a limiting boss 74, and the limiting boss 74 is located on one side of the connecting portion 722 close to the second subsection 62 along the axial direction X and is arranged on at least one side of the through hole 70a along the first direction Y. In this way, after the first sub-section 61 passes through the through hole 70a, the first sub-section 61 is bent, so as to reduce the distance between the circuit board 51 and the sampling harness 40 along the axial direction X, and improve the compactness of the structures of the circuit board 51 and the sampling harness 40. In the process of bending the first sub-section 61, the limiting boss 74 can limit the second sub-section 62, so that the risk that the second sub-section 62 is connected with the sampling wire harness 40 and fails due to tilting is reduced. The battery 10 may further include an insulation shield 80, and after the conductive member 60 is connected to the sampling harness 40, the insulation shield 80 covers the conductive member 60 between the sampling harness 40 and the via hole 70a to shield the conductive wire. The insulation shield 80 may comprise foam. The sampling wire harness 40 has a deformation portion 41, and the deformation portion 41 is configured to be capable of generating deformation when the sampling wire harness 40 is under tension, so as to reduce the risk of damage of the sampling wire harness 40 due to tensile stress.

According to the embodiment of the application, the electric device comprises the battery provided by any one of the embodiments, and the battery is used for providing electric energy.

According to the power utilization device provided by the embodiment of the application, as the battery provided by any one of the embodiments is adopted, the same technical effects are achieved, and the details are not repeated.

While the present application has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application, and particularly, features described in connection with the embodiments may be combined in any manner 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

1. A battery, comprising:

the number of the battery cells is increased,

the sampling wire harness is used for collecting the working condition information of the single battery;

a circuit board having a plugging hole;

the conductive piece is inserted into the inserting hole and is used for electrically connecting the circuit board and the sampling wire harness;

and the support assembly is used for supporting the conductive piece.

2. The battery of claim 1, wherein one of the support assembly and the circuit board has a limiting protrusion and the other has a limiting recess, the limiting protrusion mating with the limiting recess.

3. The battery of claim 1, wherein the support assembly has a via hole, and the conductive member is inserted into the via hole.

4. The battery of claim 3, wherein the conductive member has a first subsection and a second subsection connected to each other, one of the first subsection and the second subsection is connected to the circuit board, and the other is connected to the sampling harness, and a cross-sectional area of the first subsection is smaller than a cross-sectional area of the second subsection;

the via has a minimum cross-section that covers a cross-section of the first subsection, and the second subsection covers the minimum cross-section.

5. The battery of claim 4, wherein the support assembly comprises a support portion and a connecting portion, the connecting portion is connected to one side of the support portion, and a plurality of through holes are formed in the connecting portion and spaced apart from each other in a first direction, and the first direction intersects with an axial direction of the through holes.

6. The battery of claim 5, wherein the support assembly further comprises a guide protrusion located on a side of the connecting portion adjacent to the first subsection in the axial direction and located on at least one side of the via hole in the first direction.

7. The battery according to claim 5, wherein the second subsection includes a bent portion bent along a second direction and used for electrically connecting the circuit board, and the second direction intersects with the axial direction;

the support assembly is further provided with a limiting boss, the limiting boss is located on one side, close to the first subsection, of the connecting portion in the axial direction and is arranged on at least one side, in the first direction, of the through hole.

8. The battery of claim 5, wherein the mating holes are spaced apart along the first direction and a second direction, the second direction intersecting the first direction.

9. The battery of claim 1, wherein the sampling wire harness has a deformation configured to deform when the sampling wire harness is subjected to a tensile force.

10. An electrical device comprising a battery as claimed in any one of claims 1 to 9 for providing electrical energy.