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, a plug connector and a slave board, the FPC board is used for being connected with a battery cell module, and the slave board is used for collecting data of the battery cell module; a bending section extends from the FPC board, and the plug connector is connected with the bending section; the slave board is provided with a plug-in groove, and the plug-in piece is inserted in the plug-in groove to connect the FPC board and the slave board. According to the battery pack provided by the invention, the FPC board can be directly inserted into the inserting groove through the inserting piece, so that the connection between the FPC board and the slave board is realized, the arrangement of a wire harness is omitted, the wiring layout of the wire harness in the battery pack does not need to be considered, and meanwhile, the space congestion caused by the arrangement of the wire harness can be avoided, so that the cost of the battery pack is reduced. Moreover, the FPC board is connected with the plug connector through the bending section, and when the battery pack is installed in the battery pack, the bending section can be adaptively bent according to the environmental space in the battery pack, so that the internal space of the battery pack is utilized to the greatest extent, 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] A battery management system (BMS) in a battery pack includes a master board and a slave board, the master board is a master control unit, and the slave board is responsible for collecting data such as voltages and temperatures of battery cells.

[0003] In related technologies, a battery cell is connected with a flexible printed circuit (FPC), and the flexible printed circuit is connected with a slave board in a battery management system through a wire harness, so as to collect data such as voltages and temperatures of the battery cell.

[0004] However, the use of the wire harness needs to consider the layout of the wires, and occupies a large space, resulting in a high cost of the battery pack. UTILITY MODEL CONTENT

[0005] The present application provides a sampling structure, a battery pack and a vehicle, to solve the problem that the flexible printed circuit is connected with the slave board through the wire harness, resulting in a high cost of the battery pack.

[0006] In a first aspect, the present application provides a sampling structure, which includes an FPC board, a plug-in part and a slave board, the FPC board is used to connect a battery cell module, and the slave board is used to collect data of the battery cell module.

[0007] A bending section is extended from the FPC board, and the plug-in part is connected with the bending section.

[0008] The slave board is provided with a plug-in slot, and the plug-in part is inserted into the plug-in slot to connect the FPC board with the slave board.

[0009] In a possible implementation manner, the sampling structure provided by the present application further includes a slave board support.

[0010] The slave board support is used to be arranged in the battery pack, and the slave board support has a mounting position, and the slave board is mounted on the mounting position.

[0011] In a possible implementation manner, the sampling structure provided by the present application is provided with at least one locking part on the slave board support.

[0012] The locking part is provided with a mounting hole, and the mounting hole is used to mount the locking part into the battery pack.

[0013] In a possible implementation manner, the sampling structure provided by the present application is provided with a surrounding fence part around the periphery of the slave board support.

[0014] The surrounding fence part and part of the slave board support form the mounting position.

[0015] In a possible implementation, the sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected.

[0016] In a possible implementation, the sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected.

[0017] The first bending section is connected with the FPC plate, the second bending section is connected with the plug-in part, and the first bending section and the second bending section have an included angle therebetween.

[0018] In a possible implementation, the sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected.

[0019] In a possible implementation, the sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected.

[0020] The plurality of connecting pieces are arranged in an alternating manner along two sides of the FPC body in the length direction, and the bending section is arranged at an end of the FPC body in the length direction.

[0021] In a possible implementation, the sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected.

[0022] In a possible implementation, the sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected.

[0023] The sampling structure provided in the application is provided with a buckle part on the plug-in part and a clamping groove on the plug-in groove, and the buckle part and the clamping groove are detachably connected. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application together with the specification.

[0025] Figure 1 A structural schematic view of a sampling structure provided by an embodiment of the present application;

[0026] Figure 2 A close-up view of an embodiment referred to by A in the foregoing description; Figure 1 A close-up view of another embodiment referred to by A in the foregoing description;

[0027] Figure 3 A close-up view of an embodiment referred to by B in the foregoing description; Figure 1 A close-up view of another embodiment referred to by B in the foregoing description;

[0028] Figure 4 A close-up view of an embodiment referred to by B in the foregoing description; Figure 1 A close-up view of another embodiment referred to by B in the foregoing description;

[0029] Figure 5 A structural schematic view of a battery pack provided by an embodiment of the present application.

[0030] Legend of reference signs:

[0031] 100, sampling structure;

[0032] 110, FPC board;

[0033] 111, FPC body;

[0034] 112, connecting piece;

[0035] 113, NTC module;

[0036] 120, plug-in piece;

[0037] 121, buckle part;

[0038] 130, from board;

[0039] 140, bending section;

[0040] 141, first bending section;

[0041] 142, second bending section;

[0042] 150, plug-in slot;

[0043] 151, clamping slot;

[0044] 160, from board support;

[0045] 161, locking part;

[0046] 162, fence part;

[0047] 163, first reinforcing rib;

[0048] 164, second reinforcing rib;

[0049] 165, mounting position;

[0050] 170, insulating layer;

[0051] 200, battery cell module.

[0052] The specific embodiments of the application have been shown and described in the above drawings and text. These drawings and text are not meant to limit the scope of the inventive concept in any way but are merely meant to illustrate the inventive concept to one of ordinary skill in the art by reference to a particular embodiment. DETAILED DESCRIPTION

[0053] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. It is to be understood that features illustrated or described as part of one embodiment can be provided with one or more of the other embodiments as well. Variations to these embodiments can become apparent to those of ordinary skill in the art once the concepts have been made known. Certain embodiments are presented in terms of methods involving actions performed in a certain order. It is to be understood, however, that the ordering of actions can often be changed; specific orderings can merely be examples. Accordingly, the methods should not be construed as necessarily limited to the order indicated for performing certain actions.

[0054] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims, where they occur, are used as labels for the necessity of distinguishing between similar objects, and are not necessarily used in a descriptive sense. It is to be understood that the use of the terms "first", "second", "third", and "fourth", etc. are not intended to denote a particular order or sequence, unless specifically stated to denote a particular order or sequence. It is to be understood that the data used in this context of the present application can be interchanged, under appropriate circumstances, to denote any other possible order, unless otherwise explicitly provided for or otherwise contextually clear. Furthermore, the terms "comprise", "comprising", "include", "including", and "has", "having", and variants thereof are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or apparatus that comprises, includes, or has a list of steps or elements is not necessarily limited to those steps or elements, but can include additional steps or elements not expressly listed or inherent to such process, method, system, product, or apparatus.

[0055] As mentioned in the background section, the battery cell is connected to a flexible printed circuit (FPC), which is connected to a slave board in the battery management system through a wire harness, so as to collect voltage, temperature, and other data of the battery cell.

[0056] However, the use of the wire harness needs to consider the layout of the wires, and occupies a large space, resulting in a high cost of the battery pack.

[0057] In view of the above problems existing in the prior art, the utility model provides a kind of sampling structure, battery pack and vehicle.The sampling structure includes FPC board, plug connector and slave board, FPC board is used to connect electric core module, slave board is used to collect the data of electric core module;Bend section is extended on FPC board, plug connector is connected with bend section;Plug-in slot is provided on slave board, plug connector is inserted in plug-in slot to connect FPC board and slave board.FPC board can be directly inserted on plug-in slot by plug connector, to realize the connection of FPC board and slave board, omit the setting of wiring harness, without considering the wiring layout of wiring harness in battery pack, plug connector can also avoid the space crowded caused by wiring harness setting simultaneously, to reduce the cost of battery pack.Moreover, FPC board is connected with plug connector by bend section, when installing in battery pack, bend section can be adaptively bent according to the environmental space in battery pack, to make the most of the internal space of battery pack, so that the overall structure of battery pack is more compact.

[0058] Below, the exemplary application scenario of the utility model is introduced.

[0059] The sampling structure provided by the utility model can be applied in battery pack of new energy automobile, such as battery pack of pure electric drive car, battery pack of plug-in hybrid car and the like.In particular, the sampling structure provided by the utility model, FPC board can be directly inserted on plug-in slot of slave board by plug connector, to omit the setting of wiring harness.

[0060] The technical scheme of the present application and how the technical scheme of the present application solves the above technical problems will be described in detail below with specific embodiments.The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.The embodiments of the present application will be described below with reference to the drawings.

[0061] Referring to Figures 1 to 4 The sampling structure 100 provided by the embodiments of the present application includes FPC board 110, plug connector 120 and slave board 130, FPC board 110 is used to connect electric core module, and slave board 130 is used to collect the data of electric core module.

[0062] Bend section 140 is extended on FPC board 110, and plug connector 120 is connected with bend section 140.

[0063] Plug-in slot 150 is provided on slave board 130, plug connector 120 is inserted in plug-in slot 150 to connect FPC board 110 and slave board 130.

[0064] It can be understood that the sampling structure 100 provided by the embodiments of the present application can be used in a battery management system (BMS). In a battery pack, the FPC board 110 of the sampling structure 100 is used to connect with the battery cell module 200, the voltage, temperature and other data of the battery cell module 200 are collected through the FPC board 110, and these are transmitted to the main board of the battery management system by the slave board 130 of the sampling structure 100. By monitoring the voltage, temperature and other data, the main board can take timely measures (such as power-off, cooling, etc.), to avoid dangerous situations such as overcharging, over-discharging or overheating of the battery cell module 200.

[0065] The bending section 140 extending out of the FPC board 110 is connected with the plug-in part 120, and the plug-in part 120 can be directly plugged into the plug-in slot 150 provided on the slave board 130, so as to realize the connection between the FPC board 110 and the slave board 130. In this way, the wiring harness can be omitted, and the wiring layout of the wiring harness in the battery pack does not need to be considered. At the same time, the space congestion caused by the wiring harness can also be avoided, thereby reducing the cost of the battery pack.

[0066] In addition, the FPC board 110 is connected with the plug-in part 120 through the bending section 140. When the FPC board 110 is installed in the battery pack, the bending section 140 can be adaptively bent according to the environmental space in the battery pack, so as to maximize the use of the internal space of the battery pack, so that the overall structure of the battery pack is more compact.

[0067] Referring to Figures 1 to 3 In some embodiments, the sampling structure 100 further includes a slave board bracket 160.

[0068] The slave board bracket 160 is used to be arranged in the battery pack, and the slave board bracket 160 has a mounting position 165. The slave board 130 is mounted on the mounting position 165.

[0069] In the above embodiment, in the battery pack, the battery cell module 200 is arranged in the frame, and the slave board bracket 160 can be fixed to the frame. The slave board 130 is mounted on the mounting position 165 of the slave board bracket 160. In this way, the plug-in part 120 can be prevented from being separated from the plug-in slot 150 due to the shaking of the slave board 130.

[0070] The slave board 130 can be fixed to the mounting position 165 by a bolt or other fastener, so that the slave board 130 can be directly mounted into the frame through the slave board bracket 160, and the mounting and dismounting of the slave board 130 are more convenient, which is convenient for later maintenance and replacement.

[0071] For example, referring to Figure 5 The FPC board 110 can be arranged along the length direction of the battery cell module 200, and the slave board bracket 160 is arranged on one side of the length direction of the battery cell module 200, so that the overall structure is more compact, and the electrical connection layout is more convenient.

[0072] Referring to Figure 2 and Figure 3 In some embodiments, at least one locking part 161 is arranged on the plate support 160.

[0073] The locking part 161 is provided with a mounting hole for mounting the locking part to the battery pack.

[0074] In the above embodiments, the locking part 161 is mainly used to detachably connect the plate support 160 with the frame (not shown in the figure) of the battery pack. During installation, a fastener such as a bolt, a rivet nut, etc. can be passed through the mounting hole to connect the locking part 161 with the frame.

[0075] The frame of the battery pack is mainly used to mount the cell module 200 and related electrical elements, etc. The plate support 160 is fixed to the frame through the locking part 161 to avoid shaking of the plate support 160, which can cause damage to the plate 130.

[0076] For example, the number of locking parts can be two, which are arranged on the two opposite sides of the plate support 160 to improve the stability of the installation of the plate support 160.

[0077] Specifically, referring to Figure 2 and Figure 3 The plate support 160 is provided with a first reinforcing rib 163 to improve the overall structural strength of the plate support 160. A second reinforcing rib 164 is arranged between the plate support 160 and the locking part 161 to improve the stability of the connection between them and reduce deformation or loosening caused by mechanical stress.

[0078] Referring to Figure 2 and Figure 3 In some embodiments, a surrounding part 162 is arranged around the plate support 160.

[0079] The surrounding part 162 and part of the plate support 160 form a mounting position 165.

[0080] In the above embodiments, the surrounding part 162 can prevent the cell module 200 or other devices in the battery pack from directly colliding with the plate 130, reducing the risk of damage to the plate 130, thereby prolonging the service life of the plate 130.

[0081] Referring to Figure 2 In some embodiments, the insertion part 120 is provided with a buckle part 121, the insertion slot 150 is provided with a clamping groove 151, and the buckle part 121 and the clamping groove 151 are detachably connected.

[0082] In the above embodiments, the cooperation between the buckle part 121 and the clamping groove 151 can ensure the stable connection between the plug-in part 120 and the plug-in groove 150, and prevent the loosening of the two due to vibration or external force. In addition, the buckle part 121 and the clamping groove 151 are detachably connected, which can facilitate installation and disassembly.

[0083] For example, referring to Figure 2 As shown, the buckle part 121 can be an elastic pressing buckle, and the clamping groove 151 is a through hole arranged on the side wall of the plug-in groove 150. The buckle part 121 is pressed to enter or exit the clamping groove 151.

[0084] The buckle part 121 has a guide surface in contact with the clamping groove 151, so as to facilitate the smooth entry of the buckle part 121 into the clamping groove 151 along the guide surface.

[0085] For example, referring to Figure 2 and Figure 3 As shown, in some embodiments, the bending section 140 includes a first bending section 141 and a second bending section 142 connected in sequence.

[0086] The first bending section 141 is connected to the FPC board 110, and the second bending section 142 is connected to the plug-in part 120. The first bending section 141 and the second bending section 142 have an included angle therebetween.

[0087] In the above embodiments, the connection between the first bending section 141 and the second bending section 142 can be bent to form an included angle. During installation, the specific space and layout inside the battery pack can be adjusted to adapt to different installation environments in the battery pack.

[0088] The included angle between the first bending section 141 and the second bending section 142 can be 30 degrees, 60 degrees, 90 degrees, or other angles, as long as the plug-in part 120 and the plug-in groove 150 can be smoothly plugged in. The present application does not make too many limitations on this.

[0089] For example, referring to Figure 2 and Figure 3 As shown, in some specific embodiments, the bending section 140 is provided with an insulating layer 170 on the periphery thereof.

[0090] In the above embodiments, by arranging the insulating layer 170 on the periphery of the bending section 140, the risk of short circuit caused by poor contact can be reduced. At the same time, the insulating layer 170 can also provide additional protection for the bending section 140, reducing the wear of the bending section 140 during use.

[0091] For example, referring to Figure 2 and Figure 4 As shown, in some embodiments, the FPC board 110 includes an FPC body 111 and a plurality of connecting pieces 112.

[0092] The plurality of connecting pieces 112 are arranged in an alternating manner along the two sides of the length direction of the FPC body 111, and the bending section 140 is arranged at the end of the length direction of the FPC body 111.

[0093] In the above embodiment, the connecting piece 112 is used to connect the pole of the battery cell in the battery cell module 200 through the aluminum bar to detect the voltage data of the battery cell.

[0094] In order to facilitate the understanding of the direction in the following, an X-Y plane coordinate system is established in Figure 5 , wherein the direction where the X axis is located is the first direction, and the direction where the Y axis is located is the second direction.

[0095] For example, as shown in Figure 5 , the FPC body 111 can be in a strip shape, and each battery cell in the battery cell module 200 can be arranged in an interval along the first direction (i.e., the length direction of the battery cell module 200). When installed, the FPC body 111 is arranged above the battery cell module 200 along the first direction, and the plurality of connecting pieces 112 are connected to each battery cell one by one, and the FPC board 130 is arranged at the end of the first direction of the battery cell module 200. Such a layout design can make the overall structure of the battery pack more compact and reduce the cost.

[0096] For example, the connecting piece 112 can be a nickel piece.

[0097] As shown in Figure 1 and Figure 5 , the number of FPC boards 110, plug-in pieces 120 and plug-in slots 150 can be multiple. Each FPC board 110 is connected to the plug-in piece 120 through the bending section 140, and a plurality of plug-in slots 150 are arranged on the FPC board 130 in an interval along the second direction.

[0098] When installed, each FPC board 110 can be inserted into each plug-in slot 150 through the plug-in piece 120 connected thereto one by one, so as to adapt to the battery pack with more battery cell modules 200.

[0099] As shown in Figure 4 , the FPC body 111 can further be provided with an NTC module 113 (Negative Temperature Coefficient, a thermistor element). The temperature data of the battery cell is detected through the NTC module 113 to prevent overheating or failure and improve the overall safety and reliability.

[0100] As shown in Figure 5 , the battery pack provided by the embodiment of the application comprises a battery cell module 200 and a sampling structure 100 as above, and the FPC board 110 of the sampling structure 100 is connected to the battery cell module 200.

[0101] In the embodiment of the present application, since the battery pack adopts the sampling structure 100 in the above embodiment, it also has the advantages and benefits brought by the sampling structure 100, that is, the FPC board 110 can be directly inserted on the plug-in slot 150 through the plug-in piece 120 to realize the connection between the FPC board 110 and the from board 130, and the setting of the wire harness is saved, and there is no need to consider the wiring layout of the wire harness in the battery pack, and the space congestion caused by the setting of the wire harness can also be avoided, thereby reducing the cost of the battery pack. Moreover, the FPC board 110 is connected with the plug-in piece 120 through the bending section 140, when being installed in the battery pack, the bending section 140 can be adaptively bent according to the environmental space in the battery pack, so as to maximize the use of the internal space of the battery pack, so that the overall structure of the battery pack is more compact.

[0102] The vehicle provided in the embodiment of the present application comprises a vehicle body and the above battery pack, and the battery pack is arranged on the vehicle body.

[0103] In the above structure, since the vehicle adopts the battery pack in the above embodiment, it also has the advantages and benefits brought by the battery pack, which will not be described here.

[0104] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The specification and examples given are considered exemplary only, and the true scope and spirit of the application is indicated by the following claims. The application is to be limited only by the claims sufficiently supported by this specification.

[0105] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying 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 is to be limited only by the appended claims.

Claims

1. A sampling structure, characterized by, The sampling structure comprises an FPC plate (110), a connector (120) and a slave plate (130), the FPC plate (110) is used for connecting a battery cell module, and the slave plate (130) is used for collecting data of the battery cell module. A bending section (140) is arranged on the FPC plate (110), and the connector (120) is connected with the bending section (140). The slave plate (130) is provided with a connector slot (150), and the connector (120) is arranged in the connector slot (150) to connect the FPC plate (110) and the slave plate (130).

2. The sampling structure of claim 1, wherein, The sampling structure further comprises a slave plate support (160). The slave plate support (160) is arranged in a battery pack, and the slave plate support (160) is provided with a mounting position (165), and the slave plate (130) is arranged on the mounting position (165).

3. The sampling structure of claim 2, wherein, The slave plate support (160) is provided with at least one locking part (161). The locking part (161) is provided with a mounting hole, and the mounting hole is used for mounting the locking part in the battery pack.

4. The sampling structure of claim 2, wherein, The slave plate support (160) is provided with a surrounding part (162) on the side. The surrounding part (162) and part of the slave plate support (160) form the mounting position (165).

5. The sampling structure of claim 1, wherein, The connector (120) is provided with a buckle part (121), the connector slot (150) is provided with a clamping groove (151), and the buckle part (121) and the clamping groove (151) are detachably connected.

6. The sampling structure of claim 1, wherein, The bending section (140) comprises a first bending section (141) and a second bending section (142) connected in sequence. The first bending section (141) is connected with the FPC plate (110), the second bending section (142) is connected with the connector (120), and the first bending section (141) and the second bending section (142) have an included angle.

7. The sampling structure according to any one of claims 1 to 6, wherein, The bending section (140) is provided with an insulating layer (170) on the side.

8. The sampling structure according to any one of claims 1 to 6, wherein, The FPC plate (110) comprises an FPC body (111) and a plurality of connecting pieces (112). The plurality of connecting pieces (112) are arranged on both sides of the FPC body (111) in the length direction and are arranged alternately and staggered, and the bending section (140) is arranged at the end of the FPC body (111) in the length direction.

9. A battery pack, characterized by, The sampling structure (100) comprises a battery cell module (200) and the sampling structure (100) of any one of claims 1 to 8, and the FPC plate (110) of the sampling structure (100) is connected with the battery cell module (200).

10. A vehicle characterized by comprising: The sampling structure (100) comprises a vehicle body and the battery pack of claim 9, and the battery pack is arranged on the vehicle body.

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