CN218996834U - Battery sampler, battery management system and vehicle - Google Patents

Abstract

The utility model discloses a battery sampler, a battery management system and a vehicle. The battery sampler includes: PCBA board and electrical connection piece. One end of the electric connecting sheet is fixedly arranged on the PCBA board and is electrically connected with the PCBA board. The other end of the electric connecting sheet is used for being electrically connected and fixed with the pole of the electric core. The electrode post electricity through the electric connection piece on the PCBA board is fixed with the electric core to need not set up the pencil between PCBA board and electric core, in order to reduce the link of being connected between PCBA board and the electric core, increase sampling reliability, and do benefit to the structure of simplifying the battery sample thief, reduction in production cost, realize the miniaturization and the lightweight design of battery sample thief.

Description

Battery sampler, battery management system and vehicle

Technical Field

The present utility model relates to the field of battery technologies, and in particular, to a battery sampler, a battery management system, and a vehicle.

Background

Management of the battery pack is achieved through a battery management system. The acquisition module is used as an important component module of the battery management system and is used for carrying the tasks of acquisition of information such as single voltage, total voltage, current, temperature and the like, and the importance degree of the reliability of the sampling structure is self-evident.

The current sampling structure is mostly used for collecting information such as voltage, current, temperature and the like by using a wire harness, the wire harness of the scheme is used for connecting a collector and a battery module, poor contact easily occurs in the connecting link, the impedance of the wire harness is increased, the risk of breakage of the wire harness is accompanied, and therefore the probability of failure is increased, namely, the sampling reliability is lower. And because the component parts of pencil are more, lead to it to occupy battery package space great and the cost is higher, and the space in power battery package is limited, is unfavorable for realizing its miniaturized design.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the battery sampler, which can reduce the connection link between the PCBA board and the battery core, increase the sampling reliability, and is beneficial to simplifying the structure of the battery sampler and reducing the production cost.

According to an embodiment of the utility model, a battery sampler includes: the electric connection piece is characterized by comprising a PCBA plate and an electric connection piece, wherein one end of the electric connection piece is fixedly arranged on the PCBA plate and is electrically connected with the PCBA plate, and the other end of the electric connection piece is used for being electrically connected and fixed with a pole of an electric core.

According to the battery sampler provided by the embodiment of the utility model, the PCBA plate is electrically connected and fixed with the pole of the battery core through the electric connecting sheet, so that the battery core can be sampled without arranging a wire harness between the PCBA plate and the battery core, the connection link between the PCBA plate and the battery core is reduced, the sampling reliability is improved, the structure of the battery sampler is simplified, the production cost is reduced, and the miniaturization and the light-weight design of the battery sampler are realized.

According to some embodiments of the utility model, the electrical connection piece is connected to one side surface of the PCBA plate, and the electrical connection piece protrudes from the edge of the PCBA plate to be connected to the pole.

According to some embodiments of the utility model, the portion of the electrical connection sheet protruding from the PCBA plate is formed with an attaching surface, and the attaching surface is parallel to the one side surface.

According to some embodiments of the utility model, the plurality of the electric connection pieces are arranged at intervals on the same side edge of the PCBA board.

According to some embodiments of the utility model, the plurality of electrical connection tabs are spaced apart at edges of the PCBA plate in a length direction.

According to the battery sampler of some embodiments of the present utility model, the number of the electric connection pieces is two, and the two groups of the electric connection pieces are respectively located at two side edges of the opposite distribution of the PCBA board.

According to some embodiments of the utility model, the electrical connection piece is a nickel piece, and the nickel piece is welded with the PCBA plate.

According to the battery sampler of some embodiments of the present utility model, a plurality of PCBA boards are provided, and two adjacent PCBA boards are in communication connection through a cascade communication line.

The utility model also provides a battery management system.

A battery management system according to an embodiment of the present utility model includes: the distribution box and the battery samplers according to any one of the embodiments, wherein the battery samplers are in one-to-one correspondence with the plurality of groups of battery cells; wherein, the adjacent battery samplers are in communication connection through cascade communication lines; the battery sampler at the end is electrically connected to the distribution box through a wire harness connector; and the distribution box is in communication connection with the whole vehicle controller.

The utility model further provides a vehicle.

According to an embodiment of the present utility model, a vehicle includes: the battery management system described in the above embodiment.

The vehicle, the battery management system and the battery sampler have the same advantages as compared with the prior art, and are not described in detail herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of a single battery sampler according to some embodiments of the present utility model;

FIG. 2 is a schematic diagram of a plurality of battery samplers cascaded for connection to a battery cell according to some embodiments of the present utility model;

fig. 3 is a schematic diagram illustrating connection of a plurality of battery samplers of the present utility model after cascading and being applied to a Battery Management System (BMS); fig. 4 is a schematic illustration of a vehicle according to some embodiments of the utility model.

Reference numerals:

the vehicle (1000),

the battery management system 100 is configured to provide a plurality of battery management modules,

the battery sampler 10, the battery cell 20, the post 21,

the distribution box 30, the vehicle controller 40, the harness connector 50,

the first side 11 of the PCBA board 1,

the collector (2) is provided with a plurality of sensors,

the electrical connection piece 3 is provided with a pair of electrical connection pads,

a cascade of communication lines 4.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

A battery sampler 10 according to an embodiment of the present utility model is described below with reference to fig. 1 to 4.

The battery sampler 10 according to an embodiment of the present utility model includes: a PCBA board 1 and an electric connection sheet 3.

Specifically, as shown in fig. 1, one end of the electrical connection piece 3 is fixedly mounted on the PCBA board 1 and electrically connected with the PCBA board 1, and the other end of the electrical connection piece 3 is used for being electrically connected and fixed with the pole 21 of the electric core 20.

From this, PCBA board 1 accessible electric connection piece 3 is connected with the utmost point post 21 electricity of electric core 20 to gather electric core 20's information, wherein, electric connection piece 3 is fixed with electric core 20's utmost point post 21 direct electric connection, can reduce the link of being connected between PCBA board 1 and the electric core 20 on the one hand, and can realize the collection to electric core 20's information, does benefit to the increase sampling reliability. On the other hand, the PCBA 1 and the battery cell 20 can be connected and fixed, so that the PCBs do not need to be independently fixed, and the production cost is reduced.

It should be noted that, the PCBA board 1 of the present application is selectively integrated with hardware structures such as a collector, a processor, an equalizing resistor, a transformer, a capacitor, etc., and the electrical connection piece 3 includes, but is not limited to, a sheet structure, that is, the electrical connection piece 3 may also be configured as other structures that satisfy the electrical connection between the PCBA board 1 and the pole 21, and the shape is not limited.

For example, in the actual assembly process, one end of the electrical connection piece 3 is welded to the PCBA board 1, and the other end of the electrical connection piece 3 is welded to the post 21 of the electrical core 20, so as to achieve electrical connection between the electrical connection piece 3 and the electrical core 20. The welding may be laser welding, but of course, other welding methods are also possible, and the welding is not limited thereto.

Therefore, when the battery sampler 10 samples the battery core 20, the electric connection piece 3 can be used for directly collecting information of the battery core 20, compared with the mode of adopting wire harness connection in the prior art, the utility model directly adopts the electric connection piece 3 to be connected with the pole column 21 of the battery core 20, thereby avoiding the wire harness between the PCBA board 1 and the battery core 20, being convenient for reducing the connection link between the PCBA board 1 and the battery core 20, being beneficial to reducing impedance, being capable of avoiding the problem of poor contact, simultaneously avoiding the problem of failure caused by the damage of the wire harness, being beneficial to enhancing the sampling reliability, reducing the wire harness, being capable of reducing the occupation of the installation space, being beneficial to reducing the production cost and being beneficial to realizing the miniaturized design thereof.

According to the battery sampler 10 provided by the embodiment of the utility model, the PCBA plate 1 is electrically connected and fixed with the pole column 21 of the battery core 20 through the electric connection sheet 3, so that the battery core 20 can be sampled without arranging a wire harness between the PCBA plate 1 and the battery core 20, the connection link between the PCBA plate 1 and the battery core 20 is reduced, the sampling reliability is improved, the structure of the battery sampler 10 is simplified, the production cost is reduced, and the miniaturization and the light-weight design of the battery sampler 10 are realized. Meanwhile, because the PCBA board 1 integrates a signal processing circuit, the processing of the acquired signals can be realized at the sampling end.

In some embodiments, as shown in fig. 1, the electrical connection pad 3 is connected to one side of the PCBA board 1, and the electrical connection pad 3 is provided protruding from an edge of the PCBA board 1 to be connected to the post 21.

From this, through connecting the electric connection piece 3 in one side of PCBA board 1 to the setting degree of difficulty of electric connection piece 3 is reduced, and electric connection piece 3 is protruding at the border of PCBA board 1, on the one hand, the electric connection piece 3 of being convenient for links to each other with the utmost point post 21 of electric core 20 better, on the other hand, can reduce the size of battery sampler 10 in the thickness direction of PCBA board 1, does benefit to the miniaturized design that realizes PCBA board 1.

For example, as shown in fig. 1, the PCBA board 1 includes a first side 11 and a second side that are distributed relatively, the collector 2 is integrated on the first side 11, where the first side 11 and the second side are two sides of the PCBA board 1 in the thickness direction, as shown in fig. 2, the first side 11 is a side of the PCBA board 1 facing away from the electric core 20, the second side is a side of the PCBA board 1 facing toward the electric core 20, that is, the collector 2 is integrated on a side of the PCBA board 1 facing away from the electric core 20, the electric connection piece 3 is mounted on a side of the PCBA board 1 facing toward the electric core 20, and the electric connection piece 3 is protruding from an edge of the PCBA board 1.

It should be noted that the collector 2 may be configured as a voltage collector, a temperature collector, or other collection chips, etc., and the collector 2 may be integrated on the PCBA board 1 to enhance the structural stability of the collector 2.

From this, through setting up electric connection piece 3 from the border protrusion of PCBA board 1 for electric connection piece 3 can not be covered by PCBA board 1 with the junction of electric core 20, be convenient for reduce electric connection piece 3 and electric core 20's the connection degree of difficulty, and so set up, make the overall arrangement of battery sampler 10 more reasonable, make the structure of battery sampler 10 compacter, succinct, do benefit to the miniaturized design that realizes battery sampler 10.

Of course, the first side 11 and the second side are only for illustration, and are not meant to be limiting, and it is within the scope of the present application to provide the electrical connection sheet 3 and the collector 2 on the same side of the PCBA board 1.

Further, the portion of the electrical connection sheet 3 protruding from the PCBA board 1 is formed with an attaching face, and the attaching face is parallel to one side face.

That is, the portion of the electrical connection sheet 3 protruding from the PCBA board 1 extends in a direction parallel to the PCBA board 1. Therefore, the electric connection sheet 3 is convenient to be connected with the pole column 21 of the battery cell 20, and does not occupy extra installation space in the thickness direction of the PCBA board 1, thereby being beneficial to realizing the miniaturization design of the battery sampler 10.

Of course, the electric connection piece 3 may extend in a direction perpendicular to the PCBA board 1, which is not limited herein.

In some embodiments, as shown in fig. 1, the electrical connection sheet 3 is provided in a plurality, and the plurality of electrical connection sheets 3 are spaced apart on the same side edge of the PCBA board 1.

It should be noted that, the battery sampler 10 may sample the plurality of battery cells 20 at the same time, and in the actual use process of the battery sampler 10, the plurality of electric connection pieces 3 are distributed at the same side edge of the PCBA board 1 at intervals, so that the plurality of electric connection pieces 3 sample the plurality of single battery cells 20 at the same time, thereby facilitating reducing the number of the PCBA board 1, and improving the sampling efficiency of the battery sampler 10.

The distribution direction of the plurality of electrical connection pieces 3 may be the same as the distribution direction of the plurality of unit cells 20.

Further, as shown in fig. 1, a plurality of electric connection pieces 3 are distributed at intervals at the edges in the longitudinal direction of the PCBA board 1.

Therefore, the distribution direction of the electric connection pieces 3 is convenient to be the same as the distribution direction of the single battery cells 20, so that the electric connection pieces 3 are convenient to be connected with the single battery cells 20 respectively, and the sampling difficulty is reduced.

In some embodiments, as shown in fig. 1, the electrical connection pieces 3 are two groups, and the two groups of electrical connection pieces 3 are respectively located at two side edges of the PCBA board 1 which are distributed oppositely.

For example, the two groups of electric connection pieces 3 are respectively located at two side edges of the PCBA plate 1 in the length direction, so that the plurality of electric connection pieces 3 sample the plurality of single battery cells 20 at the same time, thereby facilitating the reduction of the number of the PCBA plate 1 and improving the sampling efficiency of the battery sampler 10.

The above distribution is merely for illustration, and is not meant to be limiting. If the two groups of electric connection pieces 3 are respectively located at two side edges of the PCBA board 1 in the width direction, i.e. the electric connection pieces 3 may be multiple groups, and the multiple groups of electric connection pieces 3 may be distributed around the edge of the PCBA board 1, so as to realize sampling of the multiple single battery cells 20.

In some embodiments, the electrical connection pads 3 are nickel pads, and the nickel pads are soldered to the PCBA board 1.

Therefore, the connection stability of the electric connection sheet 3 and the PCBA plate 1 is convenient to strengthen, and the nickel sheet has certain conductivity, so that the PCBA plate 1 is electrically connected with the electric core 20 through the electric connection sheet 3, and the electric core 20 is sampled.

Note that, the nickel plate and the terminal 21 of the battery cell 20 are also welded and connected, and the welding mode is laser welding.

Of course, the manner of welding connection is merely for illustration, and the electrical connection sheet 3 may be formed of other conductive structures or sampling structures, which are not limited herein.

In some embodiments, as shown in fig. 2, a plurality of PCBA boards 1 are provided, and two adjacent PCBA boards 1 are communicatively connected by a cascade communication line 4.

It can be appreciated that, according to the arrangement form of the electric core 20, a plurality of PCBA boards 1 can be provided so as to meet the sampling requirement of the electric core 20, and two adjacent PCBA boards 1 are in communication connection through the cascade communication line 4 so as to collect the sampling information of the plurality of PCBA boards 1 to different electric cores 20, thereby being beneficial to enhancing the universality of the battery sampler 10.

Of course, the cascade communication line 4 may be another type of communication connection line, which is not limited herein.

The utility model also proposes a battery management system 100.

As shown in fig. 3, the battery management system 100 according to an embodiment of the present utility model includes: a distribution box 30 and a number of battery samplers 10 according to any of the embodiments described above.

Specifically, a plurality of battery samplers 10 are in one-to-one correspondence with a plurality of groups of battery cells 20; wherein adjacent ones of the battery samplers 10 are communicatively connected by a cascade communication line 4. The battery sampler 10 at the end is electrically connected to the distribution box 30 through the harness connector 50; and the distribution box 30 is in communication connection with the vehicle controller 40.

It can be appreciated that a plurality of battery samplers 10 may be provided, where the plurality of battery samplers 10 are respectively used for sampling the plurality of groups of battery cells 20, and two adjacent battery samplers 10 are connected in a communication manner through the cascade communication line 4, so as to facilitate communication connection between the plurality of groups of battery samplers 10, thereby facilitating collection of sampling information of the plurality of groups of battery cells 20.

Further, as shown in fig. 3, the battery sampler 10 at the end is electrically connected to the distribution box 30 through the wire harness connector 50, for example, the wire harness connector 50 is provided on the battery sampler 10 near the distribution box among the plurality of battery samplers 10, and the wire harness connector 50 is electrically connected to the distribution box 30, and the wire harness connector 50 is also provided on the battery sampler 10 far from the distribution box 30 among the plurality of battery samplers 10, and the battery sampler 10 far from the distribution box 30 is electrically connected to the distribution box 30 through the wire harness connector 50, thereby enabling a circuit to be formed between the plurality of battery samplers 10 and the distribution box 30, and the distribution box 30 and the whole vehicle controller 40 are in communication connection.

Therefore, the sampling information of the battery cell 20 collected by the battery sampler 10 can be uploaded to the whole vehicle controller 40 after being processed by the distribution box 30, so that the whole vehicle controller 40 can conveniently control the battery cell 20 according to the sampling information.

According to the battery management system 100 of the embodiment of the utility model, the PCBA board 1 is electrically connected and fixed with the pole of the battery cell 20 through the electric connection sheet 3, so that the battery cell 20 can be sampled without arranging a wire harness between the PCBA board 1 and the battery cell 20, the connection link between the PCBA board 1 and the battery cell 20 is reduced, the sampling reliability is improved, the structure of the battery sampler 10 is simplified, the production cost is reduced, and the miniaturization and the light-weight design of the battery sampler 10 are realized.

The utility model also proposes a vehicle 1000.

The vehicle 1000 according to the embodiment of the utility model includes: the battery management system 100 of the above-described embodiment.

As shown in fig. 4, according to the vehicle 1000 of the embodiment of the utility model, the PCBA board 1 of the battery management system 100 is electrically connected and fixed with the pole of the battery cell 20 through the electric connection piece 3, so that the battery cell 20 can be sampled without arranging a wire harness between the PCBA board 1 and the battery cell 20, so as to reduce the connection link between the PCBA board 1 and the battery cell 20, increase the sampling reliability, simplify the structure of the battery sampler 10, reduce the production cost, and realize the miniaturization and the light-weight design of the battery sampler 10.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A battery sampler, comprising:

a PCBA board (1) and an electric connecting sheet (3); one end of the electric connecting sheet (3) is fixedly arranged on the PCBA (1) and is electrically connected with the PCBA (1), and the other end of the electric connecting sheet (3) is used for being electrically connected and fixed with a pole column (21) of the battery cell (20).

2. A battery sampler according to claim 1, characterized in that the electrical connection piece (3) is connected to one side of the PCBA board (1), and the electrical connection piece (3) is provided protruding from the edge of the PCBA board (1) to be connected to the pole (21).

3. A battery sampler according to claim 2, characterized in that the part of the electrical connection sheet (3) protruding from the PCBA board (1) is formed with an abutment surface, which is parallel to the one side surface.

4. The battery sampler according to claim 1, characterized in that a plurality of the electric connection pieces (3) are provided, and a plurality of the electric connection pieces (3) are distributed at intervals on the same side edge of the PCBA board (1).

5. A battery sampler according to claim 4, characterized in that a plurality of the electrical connection tabs (3) are spaced apart at the edges of the PCBA plate (1) in the length direction.

6. The battery sampler according to claim 1, wherein the number of the electric connection pieces (3) is two, and the two groups of the electric connection pieces (3) are respectively positioned at two side edges of the opposite distribution of the PCBA board (1).

7. The battery sampler according to claim 1, characterized in that the electrical connection piece (3) is a nickel piece and the nickel piece is welded with the PCBA board (1).

8. The battery sampler according to claim 1, wherein a plurality of PCBA boards (1) are provided, and two adjacent PCBA boards (1) are communicatively connected by a cascade communication line (4).

9. A battery management system, comprising: a distribution box and a number of battery samplers (10) according to any one of claims 1-8; the battery samplers (10) are in one-to-one correspondence with the plurality of groups of battery cells (20);

wherein the adjacent battery samplers (10) are in communication connection through cascade communication lines (4); the battery sampler (10) at the end is electrically connected to the distribution box (30) through a wire harness connector (50); and the distribution box (30) is in communication connection with the whole vehicle controller (40).

10. A vehicle characterized by comprising a battery management system (100) according to claim 9.

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