Sampling structure, battery pack and vehicle

Abstract

The utility model provides a sampling structure, a battery pack and a vehicle, and relates to the technical field of power batteries. The sampling structure comprises an FPC board and an NTC module. The FPC board comprises an FPC body, at least one connecting part and a first wiring terminal; the connecting part is arranged in the middle area of the FPC body, and the connecting part is connected with the NTC module; the first wiring terminal is arranged at the end part of the FPC body, the first wiring terminal corresponds to the connecting part along the length direction of the FPC body, and the connecting part is connected with the first wiring terminal through a first wire. When the first wire is connected with the first wiring terminal and the connecting part, the first wire can be linearly arranged in the middle area in the FPC body, so that the circuit layout in the FPC body is simplified, and the cost is reduced. Moreover, the connecting part is formed by the outward extension of the middle area of the FPC body, so that the NTC module can be conveniently connected in the battery pack, and the overall structure of the battery pack is more compact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, and in particular to a sampling structure, a battery pack and a vehicle. BACKGROUND

[0002] In a battery pack, the voltage and temperature of a battery cell are generally collected by an FPC (Flexible Printed Circuit) board.

[0003] The FPC board is provided with a connecting piece (usually a nickel piece) and an NTC module (Negative Temperature Coefficient), and the FPC board is integrated with a voltage collection circuit and a temperature collection circuit, wherein the connecting piece is connected to the connecting piece via the voltage collection circuit, and the NTC module is connected to the NTC module via the temperature collection circuit.

[0004] In the related art, the voltage collection circuit and the temperature collection circuit in the FPC board have a complex layout design and high cost. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a sampling structure, a battery pack and a vehicle to solve the problem of high cost caused by the complex layout of the circuit in the FPC board.

[0006] In a first aspect, the present application provides a sampling structure, comprising an FPC board and at least one NTC module.

[0007] The FPC board comprises:

[0008] an FPC body;

[0009] at least one connecting part arranged in the middle region of the FPC body, the connecting part being connected to the NTC module;

[0010] a first terminal arranged at the end of the FPC body, the first terminal corresponding to the connecting part along the length direction of the FPC body, the connecting part being connected to the first terminal via a first lead wire, and the first terminal being used to connect a battery management system of the battery pack.

[0011] In some possible implementation manners, the sampling structure provided by the present application comprises a connecting part comprising a connecting segment and a bending segment connected in sequence;

[0012] the connecting segment being connected to the FPC body, the connecting segment being connected to the first terminal via the first lead wire, and the bending segment being connected to the NTC module.

[0013] In some possible implementation manners, the sampling structure provided by the embodiment of the present application has the following technical features.

[0014] The wiring segment is located in the mounting hole and extends along the length direction of the mounting hole.

[0015] In some possible implementation manners, the sampling structure provided by the embodiment of the present application has the following technical features.

[0016] In some possible implementation manners, the sampling structure provided by the embodiment of the present application has the following technical features.

[0017] The first bending segment is connected with the wiring segment, and the third bending segment is configured to connect the NTC module.

[0018] The first bending segment and the second bending segment have a first included angle, and the second bending segment and the third bending segment have a second included angle.

[0019] In some possible implementation manners, the sampling structure provided by the embodiment of the present application has the following technical features.

[0020] In some possible implementation manners, the sampling structure provided by the embodiment of the present application has the following technical features.

[0021] The end portion of the FPC body is provided with a second wiring terminal, the second wiring terminal is located on one side of the first wiring terminal, and the connecting sheet is connected with the second wiring terminal through a second lead wire.

[0022] In some possible implementation manners, the sampling structure provided by the embodiment of the present application has the following technical features.

[0023] The second wiring region is distributed on the opposite sides of the first wiring region, the first lead wire is arranged in the first wiring region, and the second lead wire is arranged in the second wiring region.

[0024] In the third aspect, the vehicle provided by the embodiment of the present application has the following technical features.

[0025] In the third aspect, the vehicle provided by the embodiment of the present application has the following technical features.

[0026] The utility model provides a kind of sampling structure, battery pack and vehicle.The sampling structure includes FPC board and NTC module;FPC board includes FPC body, at least one connecting part and first wiring terminal;Connecting part is set to the intermediate region of FPC body, and connecting part connects NTC module;First wiring terminal is set to the end of FPC body, and first wiring terminal corresponds with connecting part along the length direction of FPC body, and connecting part and first wiring terminal are connected by first wire.First wire can be linearly laid in the intermediate region inside FPC body when connecting first wiring terminal and connecting part, to simplify the circuit layout inside FPC body, reduce cost.And, connecting part is formed by the intermediate region of FPC body and extends outward, to facilitate connecting NTC module in battery pack, to make the overall structure of battery pack more compact. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0028] Figure 1 Structure diagram of sampling structure provided for the embodiment of the application;

[0029] Figure 2 For Figure 1 Enlarged view referred to in A of the middle;

[0030] Figure 3 Part of the top view of sampling structure provided for the embodiment of the application;

[0031] Figure 4 Structure diagram of battery pack provided for the embodiment of the application;

[0032] Figure 5 For Figure 4 Enlarged view referred to in B of the middle.

[0033] Explanation of reference signs:

[0034] 10, sampling structure;20, battery cell module;

[0035] 100, FPC board;

[0036] 110, FPC body;

[0037] 111, mounting through hole;

[0038] 112, avoiding slot;

[0039] 113, first wiring area;

[0040] 114, second wiring area;

[0041] 120, connecting portion;

[0042] 121, wire segment;

[0043] 122, bending segment;

[0044] 1221, first bending segment; 1222, second bending segment; 1223, third bending segment;

[0045] 130, first wire terminal;

[0046] 140, first wire;

[0047] 150, second wire terminal;

[0048] 160, second wire;

[0049] 200, NTC module;

[0050] 300, connecting tab.

[0051] The above-described drawings show certain embodiments of the application. Additional aspects of the application will be described in more detail in the following description. DETAILED DESCRIPTION

[0052] The illustrative examples described herein will now be described with reference to the accompanying drawings, of which:

[0053] The terms "first", "second", "third", and "fourth" and the like, if any, in the description and in the claims, if any, of the foregoing application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms in the description and in the claims, if any, of the foreging application is merely for distinguishing between the similar elements in the flightness application and does not necessarily limit the scope of any embodiement or the application to any particular sequential or chronological order. It is to be understood that the use of these terms in the description and in the claims, if any, of the foregoing application is merely for distinguishing between similar elements in the application and does not necessarily limit the scope of any embodiement or the application to any particular sequential or chronological order. Moreover, the terms "comprising", "having", "including", and the like, if any, are used synonymously to denote an inclusive codeuration, such as, for example, a process, method, article, or apparatus that comprises a list of steps or elements as ments, but is not limited to only those steps or elements. It will be appreciated that the application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided as illustrative examples so that one skilled in the art will understand how the application can be practiced. It will be appreciated that the application is intended to cover all modifications and variations of this application unless otherwise limited by the claims.

[0054] As described in the background, the voltage collection line and the temperature collection line inside the FPC plate are complex in layout design, and the cost is high.

[0055] In the prior art, the connecting piece (usually a nickel piece) and the NTC module are arranged on one side of the FPC plate, and the connecting wires of the two are usually led out from the side of the FPC plate and then connected to the terminal pins at the end of the FPC plate, which causes the layout of the internal lines of the FPC plate to be very complex and the cost to be high.

[0056] In view of the above problems in the prior art, the utility model provides a sampling structure, a battery pack and a vehicle. The sampling structure comprises an FPC plate and an NTC module; the FPC plate comprises an FPC body, at least one connecting part and a first terminal; the connecting part is arranged in the middle region of the FPC body, and the connecting part is connected to the NTC module; the first terminal is arranged at the end of the FPC body, and the first terminal corresponds to the connecting part along the length direction of the FPC body, and the connecting part and the first terminal are connected by a first wire. When connecting the first terminal and the connecting part, the first wire can be arranged in a straight line in the middle region inside the FPC body, thereby simplifying the layout of the internal lines of the FPC body and reducing the cost. Moreover, the connecting part is formed by extending outward from the middle region of the FPC body, so as to facilitate the connection of the NTC module in the battery pack, thereby making the overall structure of the battery pack more compact.

[0057] Next, an exemplary application scenario of the utility model is introduced.

[0058] The sampling structure provided by the utility model can be applied to the battery pack of a new energy automobile, such as the battery pack of a pure electric drive vehicle, the battery pack of a plug-in hybrid vehicle and the like. Specifically, in the sampling structure provided by the utility model, when connecting the first terminal and the connecting part, the first wire can be arranged in a straight line in the middle region inside the FPC body, thereby simplifying the layout of the internal lines of the FPC body and reducing the cost. Moreover, the connecting part is formed by extending outward from the middle region of the FPC body, so as to facilitate the connection of the NTC module in the battery pack, thereby making the overall structure of the battery pack more compact.

[0059] Next, the technical scheme of the application and how the technical scheme of the application solves the above technical problems will be described in detail with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the application will be described below with reference to the drawings.

[0060] Referring to Figures 1 to 3 Fig. 1, a sampling structure 10 provided by an embodiment of the application comprises an FPC plate 100 and at least one NTC module 200.

[0061] The FPC board 100 comprises an FPC body 110, at least one connecting part 120, and a first wiring terminal 130.

[0062] The connecting part 120 is arranged at a middle region of the FPC body 110, and the connecting part 120 is connected to the NTC module 200.

[0063] The first wiring terminal 130 is arranged at an end of the FPC body 110, and the first wiring terminal 130 corresponds to the connecting part 120 along a length direction of the FPC body 110, the connecting part 120 is connected to the first wiring terminal 130 through a first lead wire 140, and the first wiring terminal 130 is used for connecting a battery management system of a battery pack.

[0064] It can be understood that the sampling structure 10 provided by the embodiment of the present application can be used in a battery management system (BMS). In the battery pack, the FPC board 100 of the sampling structure 10 can collect temperature data of the battery cell module 20 through the NTC module 200, collect voltage data of the battery cell module 20 through the nickel sheet, and transmit the temperature and voltage data to the main board of the battery management system through the slave board in the sampling structure 10. Through monitoring the temperature and voltage data, the main board can take timely measures (such as cooling and power-off) to avoid dangerous situations such as overheat, overcharge or overdischarge of the battery cell module 20.

[0065] As shown in Figure 1 and Figure 3 , the connecting part 120 is used for connecting the NTC module 200, and the first wiring terminal 130 is arranged corresponding to the connecting part 120 along the length direction of the FPC body 110. In this way, a part of the middle position of the FPC body 110 can be reserved for the layout of the first lead wire 140, so that the first lead wire 140 can be arranged in a straight line in the first wiring area 113 when connecting the first wiring terminal 130 and the connecting part 120, thereby simplifying the internal wiring layout of the FPC body 110 and reducing the cost. Moreover, such design can also avoid the intersection of the first lead wire 140 and the line connected to the nickel sheet.

[0066] As shown in Figure 2 and Figure 5 , the connecting part 120 can be extended outward from the middle region of the FPC body 110 to form, so as to facilitate the connection of the NTC module 200 in the battery pack, thereby making the overall structure of the battery pack more compact.

[0067] For example, the shape of the connecting part 120 can be a straight line type, a bending type, an S type, and the like, which can be adaptively adjusted according to the internal space of the battery pack, and the embodiment of the present application does not make too many limitations.

[0068] It can be understood that the number of the at least one connecting part 120 and the at least one NTC module 200 can be one or multiple, as long as the number of the connecting part 120 is consistent with the number of the NTC module 200, and the application does not make too many limitations on this.

[0069] For example, the FPC body 110 and the first wiring terminal 130 can be conventional prior art, the FPC body 110 includes a conductive layer (such as copper-based), a cover layer, an adhesive layer, etc., and the connecting part 120 can be formed by extending the conductive layer outward. The first wiring terminal 130 can be used for electrical connection with the slave board in the battery management system.

[0070] Referring to Figure 2 In some embodiments, the connecting part 120 includes a wiring segment 121 and a bending segment 122 connected in sequence.

[0071] The wiring segment 121 is connected to the FPC body 110, the wiring segment 121 is connected to the first wiring terminal 130 through the first wire 140, and the bending segment 122 is connected to the NTC module 200.

[0072] In the above embodiment, the wiring segment 121 is mainly used for electrical connection with the first wire 140, and the bending segment 122 is mainly used for electrical connection with the NTC module 200. Among them, the bending segment 122 is in a bent shape, and in actual installation, it can be adaptively adjusted according to the internal space of the battery pack to better utilize the internal space of the battery pack and improve the installation efficiency.

[0073] Referring to Figure 2 and Figure 3 In some specific embodiments, the middle region of the FPC body 110 is provided with a mounting through hole 111, and the mounting through hole 111 extends along the length direction of the FPC body.

[0074] The wiring segment 121 is located in the mounting through hole 111 and extends along the length direction of the mounting through hole 111.

[0075] In the above embodiment, the wiring segment 121 is arranged in the mounting through hole 111 and extends along the length direction thereof from one end to the opposite end, so that the wiring segment 121 is accommodated in the mounting through hole 111, so that the surface of the FPC body 110 is relatively flat and the interference is reduced.

[0076] Among them, the wiring segment 121 extends along the length direction of the mounting through hole 111 for a distance, so that it can ensure that the first wire 140 has enough wiring position, and also can ensure that the first wire 140 keeps straight when the wiring layout is kept, and simplifies the wiring layout.

[0077] Exemplarily, the FPC body 110 provided by the embodiments of the present application can be provided with a U-shaped through hole in the middle region of the FPC body 110 in actual production. When the FPC body 110 is installed into the battery pack, the part of the FPC body 110 near the U-shaped through hole is bent to form the wiring segment 121 and the bending segment 122 of the connecting part 120.

[0078] Referring to Figure 2 and Figure 3 Exemplarily, in some specific embodiments, the FPC body 110 is provided with at least one avoiding groove 112 on one side thereof, and the end of the bending segment 122 away from the wiring segment 121 is located in the avoiding groove 112, and the NTC module 200 is also located in the avoiding groove 112.

[0079] In the above embodiments, by arranging part of the bending segment 122 and the NTC module 200 in the avoiding groove 112 on one side of the FPC body 110, the overall structure of the sampling structure 10 provided by the embodiments of the present application is more compact, and interference with other elements in the battery pack is reduced.

[0080] Exemplarily, the avoiding groove 112 can be rectangular, trapezoidal, parallelogram-shaped, semicircular or other similar shapes, as long as part of the bending segment 122 and the NTC module 200 can be arranged therein, and the embodiments of the present application do not make too many limitations thereon.

[0081] Referring to Figure 2 Exemplarily, in some specific embodiments, the bending segment 122 comprises a first bending segment 1221, a second bending segment 1222 and a third bending segment 1223 connected in sequence.

[0082] The first bending segment 1221 is connected to the wiring segment 121, and the third bending segment 1223 is used to connect the NTC module 200.

[0083] The first bending segment 1221 and the second bending segment 1222 have a first included angle therebetween, and the second bending segment 1222 and the third bending segment 1223 have a second included angle therebetween. The second bending segment 1222 and the third bending segment 1223 are both located in the avoiding groove 112.

[0084] In the above embodiments, the first included angle between the first bending segment 1221 and the second bending segment 1222 and the second included angle between the second bending segment 1222 and the third bending segment 1223 can be adjusted, so that the bending segment 122 has higher flexibility and can adapt to different installation environments in the battery pack during installation. Moreover, the second bending segment 1222 and the third bending segment 1223 are both located in the avoiding groove 112 and connected to the NTC module 200 through the third bending segment 1223, so that the side space of the FPC body 110 is effectively utilized, and the overall structure of the sampling structure 10 is more compact.

[0085] Exemplarily, the first and second included angles can be 30 degrees, 60 degrees or 90 degrees, etc., which can be adaptively adjusted according to the internal space of the battery pack.

[0086] Referring to Figure 1 In some embodiments, the number of the connecting portions 120 is multiple, and the multiple connecting portions 120 are arranged at intervals along the length direction of the FPC body 110.

[0087] In the above embodiments, the number of the NTC modules 200 can also be multiple, and the multiple connecting portions 120 are arranged one by one with the multiple NTC modules 200, which can realize temperature monitoring of different regions of the battery cell module 20, improve the accuracy of temperature management, and ensure the safety of the system.

[0088] In the above embodiments, each connecting portion 120 can be connected to the first wiring terminal 130 through a plurality of first wires 140, and each first wire 140 can be arranged in a straight line in the middle region of the FPC body 110.

[0089] Referring to Figures 1 to 3 In some embodiments, the sampling structure 10 provided by the present application further includes at least one connecting sheet 300 arranged on one side of the FPC body 110, and the connecting sheet 300 is used to connect with the aluminum bar of the battery cell module 20.

[0090] The end of the FPC body 110 is provided with a second wiring terminal 150, and the second wiring terminal 150 is located on one side of the first wiring terminal 130. The connecting sheet 300 is connected to the second wiring terminal 150 through a second wire 160.

[0091] In the above embodiments, the connecting sheet 300 is connected to the aluminum bar of the battery cell module 20, and is mainly used for detecting the voltage data of the battery cell module 20. The second wire 160 can be arranged along the side region of the FPC body 110, and is arranged separately from the first wire 140, so as to avoid the internal lines of the FPC body 110 from interfering with each other, thereby simplifying the internal line layout of the FPC body 110.

[0092] Exemplarily, the connecting sheet 300 is mainly used for connecting the FPC body 110 and the aluminum bar of the battery cell module 20, and the aluminum bar is arranged on the pole of the battery cell, for example, the connecting sheet 300 can be a nickel sheet.

[0093] Exemplarily, the second wiring terminal 150 can be an existing conventional wiring terminal, and is mainly used for electrical connection with the slave board in the battery management system.

[0094] Referring to Figure 3 In some specific embodiments, the FPC body 110 has a first wire layout region 113 and a second wire layout region 114.

[0095] The second wiring area 114 is distributed on the opposite sides of the first wiring area 113, the first conductive wire 140 is arranged in the first wiring area 113, and the second conductive wire 160 is arranged in the second wiring area 114.

[0096] In the above embodiment, by dividing the FPC body 110 into the first wiring area 113 and the second wiring area 114, the first conductive wire 140 and the second conductive wire 160 are arranged independently in different areas, so as to simplify the layout of the first conductive wire 140 and the second conductive wire 160 inside the FPC body 110.

[0097] In addition, the second wiring area 114 is distributed on the opposite sides of the first wiring area 113, so that the first wiring area 113 is located in the middle area of the FPC body 110, thereby corresponding to the connecting portion 120.

[0098] Referring to Figure 4 and Figure 5 It is shown that the battery pack provided by the embodiment of the present application comprises a battery cell module 20 and the sampling structure 10 as above, and the sampling structure 10 is connected with the battery cell module 20.

[0099] In the embodiment of the present application, since the battery pack adopts the sampling structure 10 in the above embodiment, the advantages and benefits brought by the sampling structure 10 are also correspondingly obtained, that is, the first conductive wire 140 can run straight inside the FPC body 110 when connecting the first connecting terminal 130 and the connecting portion 120, can run straight in the middle area inside the FPC body 110, and the cost is reduced. In addition, the connecting portion 120 is formed by extending outward from the middle area of the FPC body 110, so as to facilitate the connection of the NTC module 200 in the battery pack, thereby making the overall structure of the battery pack more compact.

[0100] The vehicle provided by the embodiment of the present application comprises a vehicle body and the battery pack as above, and the battery pack is arranged on the vehicle body.

[0101] In the above structure, since the vehicle adopts the battery pack in the above embodiment, the advantages and benefits brought by the battery pack are also correspondingly obtained, which will not be described here.

[0102] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0103] It is to be understood that the application is not limited to the precise construction already described above and shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application should only be limited by the claims appended hereto.

Claims

1. A sampling structure, characterized by, The FPC board (100) and at least one NTC module (200) are included. The FPC board (100) includes: An FPC body (110); At least one connecting part (120) is arranged at the middle region of the FPC body (110), and the connecting part (120) is connected to the NTC module (200); A first terminal (130) is arranged at the end of the FPC body (110), the first terminal (130) corresponds to the connecting part (120) along the length direction of the FPC body (110), the connecting part (120) and the first terminal (130) are connected by a first wire (140), and the first terminal (130) is used for connecting a battery management system of a battery pack.

2. The sampling structure of claim 1, wherein, The connecting part (120) includes a wire segment (121) and a bending segment (122) connected in sequence; The wire segment (121) is connected to the FPC body (110), the wire segment (121) is connected to the first terminal (130) by the first wire (140), and the bending segment (122) is connected to the NTC module (200).

3. The sampling structure of claim 2, wherein, The middle region of the FPC body (110) is provided with a mounting through hole (111) extending along the length direction of the FPC body (110); The wire segment (121) is located in the mounting through hole (111) and extends along the length direction of the mounting through hole (111).

4. The sampling structure of claim 2, wherein, At least one avoiding groove (112) is arranged at one side of the FPC body (110), one end of the bending segment (122) away from the wire segment (121) is located in the avoiding groove (112), and the NTC module (200) is located in the avoiding groove (112).

5. The sampling structure of claim 4, wherein, The bending segment (122) includes a first bending segment (1221), a second bending segment (1222) and a third bending segment (1223) connected in sequence; The first bending segment (1221) is connected to the wire segment (121), and the third bending segment (1223) is used for connecting the NTC module (200); The first bending segment (1221) and the second bending segment (1222) have a first included angle, the second bending segment (1222) and the third bending segment (1223) have a second included angle, and the second bending segment (1222) and the third bending segment (1223) are located in the avoiding groove (112).

6. The sampling structure according to any one of claims 1 to 5, wherein, The number of the connecting parts (120) is multiple, and the multiple connecting parts (120) are arranged at intervals along the length direction of the FPC body (110).

7. The sampling structure according to any one of claims 1 to 5, wherein At least one connecting sheet (300) is arranged at one side of the FPC body (110), and the connecting sheet (300) is used for connecting an aluminum bar of a battery cell module. The end of the FPC body (110) is provided with a second wiring terminal (150), the second wiring terminal (150) is located on one side of the first wiring terminal (130), and the connecting piece (300) is connected with the second wiring terminal (150) through a second lead wire (160).

8. The sampling structure of claim 7, wherein, The FPC body (110) has a first wiring area (113) and a second wiring area (114); The second wiring area (114) is distributed on the opposite sides of the first wiring area (113), the first lead wire (140) is arranged on the first wiring area (113), and the second lead wire (160) is arranged on the second wiring area (114).

9. A battery pack, characterized by, The sampling structure (10) is connected with the battery cell module (20).

10. A vehicle characterized by comprising: The battery pack is arranged on the vehicle body.

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