FPC board, battery pack and vehicle

Abstract

The utility model provides an FPC board, a battery pack and a vehicle, and relates to the technical field of power batteries. The FPC board comprises an FPC body and at least one extension part. At least one side of the FPC body is provided with at least one mounting groove, and the mounting groove is provided with a first side wall and a second side wall which are opposite to each other; the extending part is located in the mounting groove, extends from the first side wall to the second side wall and is used for being connected with an aluminum bar. The FPC board is directly connected with the aluminum bar through the extension part on the FPC body, so that the arrangement of a connecting sheet can be omitted, and the installation cost of the FPC board and the aluminum bar is reduced; according to the FPC board, the extension part is accommodated in the mounting groove, so that the side space occupation of the FPC body can be reduced, the structure of the FPC board is more compact, interference is avoided, and the mounting groove can play a role in protecting the extension part to a certain extent, and abrasion of the extension part is reduced.

Description

TECHNICAL FIELD

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

[0002] In a CCS (Cells Contact System) harness isolation plate of a battery module, an FPC plate (Flexible Printed Circuit) is usually connected to an aluminum busbar through a connecting piece (generally a nickel piece).

[0003] However, the connecting piece needs to be attached to the FPC plate by using a complex process, resulting in a high installation cost of the FPC plate and the aluminum busbar. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an FPC plate, a battery pack and a vehicle, to solve the problem that the FPC plate needs to be connected to an aluminum busbar through a connecting piece, resulting in a high installation cost.

[0005] In a first aspect, the present application provides an FPC plate, comprising an FPC body and at least one extension;

[0006] At least one side of the FPC body is provided with at least one mounting slot, and the mounting slot has opposite first and second side walls;

[0007] The extension is located in the mounting slot and extends from the first side wall to the second side wall, and the extension is used to connect to an aluminum busbar of a battery cell module.

[0008] In a possible implementation, the FPC plate provided by the present application embodiment is provided with a connecting part in the mounting slot, and one end of the connecting part, which is away from the mounting slot, is connected to the extension.

[0009] In a possible implementation, the FPC plate provided by the present application embodiment comprises a first extension, a second extension and a third extension connected in sequence;

[0010] The first extension is connected to the first side wall, the second extension is connected to the connecting part, and the third extension extends towards the second side wall.

[0011] In a possible implementation, the FPC plate provided by the present application embodiment is provided with at least one extension, and the second extension is in the form of a bent wall recessed towards the bottom wall of the mounting slot.

[0012] In a possible implementation, the FPC plate provided by the present application embodiment is provided with at least one avoidance slot on at least one side of the FPC body, and the avoidance slot is used to install an NTC module.

[0013] In a possible implementation, the FPC plate provided by the embodiment of the present application, the mounting groove and the avoiding groove form an extension protrusion.

[0014] In a possible implementation, the FPC plate provided by the embodiment of the present application, the FPC body is provided with a mounting through hole;

[0015] And / or, the extension protrusion is provided with a mounting through hole.

[0016] In a possible implementation, the FPC plate provided by the embodiment of the present application, the number of the mounting grooves and the avoiding grooves is multiple;

[0017] The mounting grooves and the avoiding grooves are sequentially and spacedly arranged.

[0018] In a second aspect, the battery pack provided by the present application comprises the cell module and the FPC plate as above, and the extension part of the FPC plate is connected with the aluminum bar of the cell module.

[0019] In a third aspect, the vehicle provided by the present application comprises the vehicle body and the battery pack as above, and the battery pack is arranged in the vehicle body.

[0020] The utility model provides a kind of FPC plate, battery pack and vehicle, and the FPC plate includes FPC body and at least one extension part;At least one mounting groove is provided in at least one side of FPC body, and the mounting groove has opposite first side wall and second side wall;Extension part is located in mounting groove, and it extends from first side wall to second side wall, and extension part is used to be connected with aluminum bar. By the extension part on FPC body directly with aluminum bar is connected, so that the setting of connecting piece can be cancelled, to reduce the installation cost of FPC plate and aluminum bar;Extension part is contained in the inside of mounting groove, so that the side space occupation of FPC body can be reduced, to make the structure of FPC plate more compact, avoid interference, and, mounting groove can also play the role of protecting extension part to some extent, reduce extension part abrasion. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and forming part of the specification, show the embodiment consistent with the present application, and together with the specification, are used to explain the principle of the present application.

[0022] Figure 1 The structure schematic view of FPC plate provided by the embodiment of the present application is shown in Fig. 1.

[0023] Figure 2 The structure schematic view of FPC plate provided by the embodiment of the present application is shown in Fig. 1. Figure 1 The enlarged view of A in Fig. 1 is shown in Fig. 2.

[0024] Figure 3 The structure schematic view of battery pack provided by the embodiment of the present application is shown in Fig. 3.

[0025] Figure 4 The structure schematic view of battery pack provided by the embodiment of the present application is shown in Fig. 3.Figure 3 Enlarged view referred to at B in the middle.

[0026] Reference numerals:

[0027] 100, FPC board;

[0028] 110, FPC body;

[0029] 120, extension;

[0030] 121, first extension;

[0031] 122, second extension;

[0032] 123, third extension;

[0033] 130, mounting groove;

[0034] 131, first side wall;

[0035] 132, second side wall;

[0036] 140, connecting portion;

[0037] 150, avoiding groove;

[0038] 160, extension protrusion;

[0039] 170, mounting through hole;

[0040] 200, battery cell module;

[0041] 210, aluminum bar;

[0042] 211, first mounting portion;

[0043] 212, second mounting portion;

[0044] 300, NTC module.

[0045] The specific embodiments of the application have been shown and described in the above-described drawings and text. These drawings and text are not meant to limit the scope of the inventive concept in any way but are meant to illustrate the inventive concept to one of ordinary skill in the art by reference to a particular embodiment. DETAILED DESCRIPTION

[0046] 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 all alternative embodiments, as would be understood by one skilled in the art. The following exemplary embodiments are described herein with reference to the figures. Wherever possible, the same reference numbers are used in the drawings and the following description to illustrate the same or similar components. The following description of exemplary embodiments is not representative of all feasible embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0047] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the utility model and the above drawings (if any) are used to distinguish similar objects and do not have to be used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0048] As mentioned in the background, in the CCS (Cells Contact System) harness isolation plate of the battery module, the FPC plate (Flexible Printed Circuit) is usually connected with the aluminum bar through the connecting sheet (usually nickel sheet).

[0049] However, the connecting sheet needs to be attached on the FPC plate by using a complex process technology, for example, the SMT surface mounting technology is used to attach the connecting sheet on the FPC plate, and then the reflow soldering process is used to connect the connecting sheet on the FPC plate, which will cause the installation cost of the FPC plate and the aluminum bar to be high.

[0050] In view of the above problems existing in the prior art, the utility model provides a kind of FPC plate, battery pack and vehicle, and the FPC plate includes FPC body and at least one extension part;At least one mounting groove is arranged on at least one side of FPC body, and the mounting groove has opposite first side wall and second side wall;Extension part is located in mounting groove, and it extends from first side wall to second side wall, and extension part is used to connect with aluminum bar. The extension part on FPC body is directly connected with the aluminum bar, so that the setting of connecting sheet can be cancelled, to reduce the installation cost of FPC plate and aluminum bar;Extension part is contained in mounting groove, so that the side space occupation of FPC body can be reduced, so that the structure of FPC plate is more compact, avoids interference, and furthermore, mounting groove can also play the role of protecting extension part to some extent, reduces the abrasion of extension part.

[0051] Below, the exemplary application scenario of the utility model is introduced.

[0052] The FPC plate provided by the utility model can be applied to a battery pack of a new energy automobile, such as a battery pack of a pure electric drive vehicle, a battery pack of a plug-in hybrid vehicle and the like. Specifically, the FPC plate provided by the utility model is directly connected with the aluminum bar through the extension part on the FPC body, so that the setting of the connecting sheet (for example, a nickel sheet) can be cancelled, so as to reduce the installation cost of the FPC plate and the aluminum bar.

[0053] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some examples. The embodiments of the present application will be described below with reference to the drawings.

[0054] Referring to Figure 1 and Figure 2 The FPC plate 100 provided by the present application includes an FPC body 110 and at least one extension part 120.

[0055] At least one mounting groove 130 is arranged on at least one side of the FPC body 110, and the mounting groove 130 has opposite first and second side walls 131 and 132.

[0056] The extension part 120 is located in the mounting groove 130 and extends from the first side wall 131 towards the second side wall 132, and the extension part 120 is used to connect with the aluminum bar 210 of the battery cell module.

[0057] It can be understood that the FPC plate 100 provided by the embodiments of the present application can be used in a battery pack, and the battery pack has a plurality of battery cells connected in series and in parallel, and an aluminum bar 210 is welded on the pole of each battery cell, and the aluminum bar 210 plays a role of conducting a circuit. The FPC body 110 can be arranged on each battery cell, and the extension part 120 on the FPC body 110 is used to connect with the aluminum bar 210, so as to electrically connect the battery cells.

[0058] The FPC plate 100 provided by the embodiments of the present application is directly connected with the aluminum bar 210 through the extension part 120 on the FPC body 110, so that the setting of the connecting sheet (for example, a nickel sheet) can be cancelled, so as to reduce the installation cost of the FPC plate 100 and the aluminum bar 210.

[0059] The connection mode of the extension part 120 and the aluminum bar 210 can be welding (for example, ultrasonic welding, laser welding and the like), mechanical connection (for example, connection through a rivet), conductive glue bonding and the like, and the present application does not make specific limitation thereon.

[0060] Referring to Figure 2As shown, the extension 120 is located in the mounting groove 130 and extends from the first side wall 131 toward the second side wall 132, and the extension 120 is accommodated inside the mounting groove 130, so as to reduce the side space occupation of the FPC body 110, so as to make the structure of the FPC plate 100 more compact and avoid interference; and the mounting groove 130 can also play a role in protecting the extension 120 to a certain extent and reducing wear of the extension 120.

[0061] As shown in the accompanying drawings, the FPC plate 100 comprises an FPC body 110 and an aluminum bar 210. Figure 4 As shown, the aluminum bar 210 can have a first mounting portion 211 extending outwardly, which can be inserted into the mounting groove 130 when connected with the FPC plate 100 provided by the embodiment of the present application, so as to positionally connect the first mounting portion 211 with the extension 120.

[0062] Specifically, the extension 120 extends from the first side wall 131 toward the second side wall 132, that is, the extension direction of the extension 120 is consistent with the length direction of the FPC body 110, so as to increase the contact area of the first mounting portion 211 with the extension 120, facilitating the connection of the two.

[0063] It can be understood that the number of the at least one extension 120 and the at least one mounting groove 130 can be one or multiple, as long as the number of the mounting groove 130 is greater than or equal to the number of the extension 120, so that the extension 120 can be arranged in the mounting groove 130, and the present application does not make too many limitations on this.

[0064] It can be understood that the FPC body 110 is provided with the mounting groove 130 on at least one side, which can be arranged on one side of the FPC body 110 or on opposite sides of the FPC body 110.

[0065] Exemplarily, the FPC body 110 can be a conventional prior art, comprising a conductive layer (for example, copper-based), a covering layer, etc., and the extension 120 is formed by the conductive layer extending outwardly. The outer side of the extension 120 can not be wrapped with the covering layer, so as to facilitate the connection with the aluminum bar 210; of course, the extension 120 can be provided with the covering layer on one side and not provided with the covering layer on the opposite side, so as to be connected with the aluminum bar 210.

[0066] Of course, in the preferred embodiment, the number of the extension 120 is multiple, so as to facilitate the connection with multiple battery cells in the battery cell module 200.

[0067] As shown in the accompanying drawings, the FPC plate 100 comprises an FPC body 110 and an aluminum bar 210. Figure 1 and Figure 2As shown in some embodiments, the connecting portion 140 is arranged in the mounting groove 130, and one end of the connecting portion 140 away from the mounting groove 130 is connected with the extending portion 120.

[0068] In the above embodiments, the extending portion 120 is connected with the connecting portion 140 arranged in the mounting groove 130, and the extending portion 120 is provided with additional support, thereby increasing the stability of the overall structure and reducing the damage of the extending portion 120 under stress.

[0069] For example, the FPC body 110, the extending portion 120 and the connecting portion 140 are integrally formed to improve the stability of the overall structure.

[0070] Referring to Figure 1 and Figure 2 As shown in some specific embodiments, the extending portion 120 includes a first extending portion 121, a second extending portion 122 and a third extending portion 123 connected in sequence.

[0071] The first extending portion 121 is connected with the first side wall 131, the second extending portion 122 is connected with the connecting portion 140, and the third extending portion 123 extends towards the second side wall 132.

[0072] In the above embodiments, the first extending portion 121 is connected with the first side wall 131 of the mounting groove 130 to provide main support for the overall extending portion 120. The second extending portion 122 is used to connect with the connecting portion 140, so that the connecting portion 140 provides additional auxiliary support for the extending portion 120. The third extending portion 123 extends towards the second side wall 132, and the third extending portion 123 is mainly used to connect with the aluminum bar 210.

[0073] Referring to Figure 1 and Figure 2 As shown in some specific embodiments, the second extending portion 122 is in a bent shape concave to the bottom wall of the mounting groove 130.

[0074] In the above embodiments, the bent shape allows the second extending portion 122 to uniformly disperse external pressure and stress, thereby enhancing the bending resistance and impact resistance. With such a structure, when the battery cell expands, the aluminum bar 210 will be offset, and the bent second extending portion 122 can reduce the damage of the extending portion 120 caused by the aluminum bar 210 pulling the extending portion 120.

[0075] For example, as shown in Figure 1 and Figure 2 One end of the connecting portion 140 is connected with the bottom of the mounting groove 130, and the other end is connected with the convex part of the recessed second extending portion 122, so as to enhance the stability of the connection.

[0076] In the above embodiments, the first extending portion 121 and the second extending portion 122 can be linear.

[0077] Referring to Figure 1 and Figure 2 In some embodiments, at least one side of the FPC body 110 is provided with at least one avoiding slot 150, which is used for mounting the NTC module 300.

[0078] In the above embodiments, the NTC (Negative Temperature Coefficient) module 300 is mainly used for detecting the temperature change of the battery cell, so as to ensure that the battery cell works within a safe temperature range. Referring to Figure 4 , the NTC module 300 can be arranged in the avoiding slot 150 and connected with the avoiding slot 150 by welding or the like. By accommodating the NTC module 300 in the avoiding slot 150 on the FPC body 110, the overall structure of the FPC board 100 is more compact.

[0079] Referring to Figure 4 , the aluminum bar 210 can have a second mounting portion 212 extending outward, which is used for connecting with the NTC module 300. When the aluminum bar 210 is connected with the FPC board 100 provided in the embodiments of the present application, the second mounting portion 212 can be extended into the avoiding slot 150 and positioned and connected with the NTC module 300.

[0080] For example, the opposite sides of the FPC body 110 can be provided with avoiding slots 150, and the number of avoiding slots 150 can be multiple, so as to facilitate the detection of the temperature of the battery cell at a specified position.

[0081] Referring to Figure 2 and Figure 4 In some embodiments, the extending protrusions 160 are formed between the mounting slots 130 and the avoiding slots 150.

[0082] In the above embodiments, the avoiding slots 150 are arranged at intervals with the mounting slots 130, and the adjacent mounting slots 130 and avoiding slots 150 are separated by the extending protrusions 160. The extending protrusions 160 can provide additional support, thereby improving the stability of the overall structure.

[0083] Referring to Figure 2 , the first side wall 131 of the mounting slot 130 can be formed by one extending protrusion 160, and the second side wall 132 of the mounting slot 130 can be formed by another extending protrusion 160 adjacent thereto, and part of the FPC body 110 forms the bottom of the mounting slot 130.

[0084] For example, referring to Figure 1 and Figure 2 , each extending protrusion 160 is flush in the extending direction thereof.

[0085] In the above embodiments, each extension protrusion 160 is flush in its extension direction, so that the side edges of the FPC plate 100 are flush, avoiding interference during installation and ensuring that the FPC plate 100 can be smoothly installed to the predetermined position.

[0086] Referring to Figure 2 In some specific embodiments, the FPC body 110 is provided with a mounting hole 170.

[0087] And / or, the extension protrusion 160 is provided with a mounting hole 170.

[0088] In the above embodiments, the mounting hole 170 is mainly used for connecting the FPC plate 100 and the battery cell module 200, and the FPC plate 100 can be fixed on the battery cell module 200 through fasteners such as bolts via the mounting hole 170.

[0089] Among them, the mounting hole 170 can be opened on the FPC body 110, or the mounting hole 170 can be opened on the extension protrusion 160. Or the mounting hole 170 is opened on both the FPC body 110 and the extension protrusion 160, and the stability of the installation is improved through multiple fasteners.

[0090] Referring to Figure 1 And Figure 2 In some embodiments, the number of mounting grooves 130 and the number of avoidance grooves 150 can both be multiple.

[0091] The mounting grooves 130 and the avoidance grooves 150 are sequentially and spacedly arranged.

[0092] In the above embodiments, the mounting grooves 130 and the avoidance grooves 150 are sequentially and spacedly arranged on the FPC body 110, each mounting groove 130 has an extension portion 120, and each avoidance groove 150 can be used for mounting an NTC module. Such integrated arrangement facilitates one-to-one correspondence with multiple battery cells of the battery cell module 200.

[0093] Among them, referring to Figure 2 Each group of adjacent mounting grooves 130 and avoidance grooves 150 forms an extension protrusion 160 therebetween to improve the stability of the overall structure.

[0094] Referring to Figure 3 And Figure 4 As shown, the battery pack provided by the present application comprises a battery cell module 200 and an FPC plate 100 as above, and the extension portion 120 of the FPC plate 100 is connected with the aluminum bar 210 of the battery cell module 200.

[0095] In the embodiments of the present application, since the battery pack adopts the FPC plate 100 in the above embodiments, it also has the advantages and benefits brought by the FPC plate 100 accordingly, that is, the extension part 120 on the FPC body 110 is directly connected with the aluminum bar 210, so that the setting of the connecting sheet (such as a nickel sheet) can be cancelled to reduce the installation cost of the FPC plate 100 and the aluminum bar 210; the extension part 120 is accommodated inside the installation slot 130, so that the side space occupation of the FPC body 110 can be reduced, so that the structure of the FPC plate 100 is more compact, interference is avoided, and the installation slot 130 can also play a role in protecting the extension part 120 to some extent, reducing the wear of the extension part 120.

[0096] As shown in the figures, the aluminum bar 210 has a first mounting part 211 and a second mounting part 212 extending outwardly, the first mounting part 211 can extend into the installation slot 130 and be connected with the extension part 120, and the second mounting part 212 can extend into the avoiding slot 150 and be connected with the NTC module 300. Figure 4

[0097] The vehicle provided by the present application comprises a vehicle body and the above battery pack, and the battery pack is arranged in the vehicle body.

[0098] In the above structure, since the vehicle adopts the battery pack in the above embodiments, it also has the advantages and benefits brought by the battery pack accordingly, which will not be described here.

[0099] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. The present application is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the application are indicated by the following claims.

[0100] It should be understood that the present 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 present application. The scope of the present application is limited only by the appended claims.​

Claims

1. An FPC board characterized by comprising: The FPC body (110) and at least one extension (120) are included. At least one mounting slot (130) is arranged on at least one side of the FPC body (110), and the mounting slot (130) has opposite first and second side walls (131) and (132). The extension (120) is located in the mounting slot (130) and extends from the first side wall (131) towards the second side wall (132), and the extension (120) is used to connect with an aluminum bar (210) of a battery cell module.

2. The FPC board according to claim 1, characterized by, A connecting part (140) is arranged in the mounting slot (130), and one end of the connecting part (140) away from the mounting slot (130) is connected with the extension (120).

3. The FPC board according to claim 2, characterized by, The extension (120) includes a first extension (121), a second extension (122), and a third extension (123) connected in sequence. The first extension (121) is connected with the first side wall (131), the second extension (122) is connected with the connecting part (140), and the third extension (123) extends towards the second side wall (132).

4. The FPC board according to claim 3, characterized by, The second extension (122) is in a bent shape concave to the bottom wall of the mounting slot (130).

5. The FPC board according to any one of claims 1 to 4, characterized by, At least one avoiding slot (150) is arranged on at least one side of the FPC body (110), and the avoiding slot (150) is used to mount an NTC module (300).

6. The FPC board according to claim 5, characterized by, An extension protrusion (160) is formed between the mounting slot (130) and the avoiding slot (150).

7. The FPC board according to claim 6, characterized by An installation through hole (170) is arranged on the FPC body (110). And / or, an installation through hole (170) is arranged on the extension protrusion (160).

8. The FPC board according to claim 5, characterized by, The number of the mounting slot (130) and the avoiding slot (150) is multiple. The mounting slot (130) and the avoiding slot (150) are arranged in sequence and are spaced apart.

9. A battery pack, characterized by, The FPC plate (100) includes a battery cell module (200) and the FPC plate (100) of any one of claims 1 to 8, and the extension (120) of the FPC plate (100) is connected with the aluminum bar (210) of the battery cell module (200).

10. A vehicle characterized by comprising: The battery pack includes a vehicle body and the battery pack of claim 9, and the battery pack is arranged in the vehicle body.

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