Heating film assembly and battery pack

Abstract

The utility model discloses a heating film assembly and a battery pack, the heating film assembly comprises a first film body and a second film body, the first film body and the second film body are arranged at an interval in the length direction; and the connecting assembly is connected between the first film body and the second film body. According to the heating film assembly provided by the utility model, the heating film is segmented into the first film body and the second film body with proper sizes, and the first film body and the second film body are bonded in a segmented manner, so that the bonding difficulty of the heating film is reduced, the bonding reliability of the heating film is improved, and the universality can be improved through the combination of heating films with different sizes; the production cost is reduced, the first film body and the second film body are connected through the connecting assembly, the assembling difficulty is reduced, and connection is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a heating film assembly and a battery pack. Background Art

[0002] In the related art, it is pointed out that with the continuous popularization and development of new energy vehicles, especially today's heating film, the reliability of its adhesion is particularly important. At present, many battery packs adopt a direct cooling scheme, which requires a heating film to achieve the heating function of the whole pack. Most of the current heating films use PI heating films, which are not easy to paste, especially difficult to paste when the size is large, and are prone to accumulate air bubbles, which not only affects the heating performance, but also has the risk of warping and falling off. If the heating film is reduced and connected by traditional wiring harnesses in segments, it not only occupies space, but also has a high cost. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides a heating film assembly, and the heating film assembly has stable and reliable connection and low assembly difficulty.

[0004] The utility model also provides a battery pack with the above heating film assembly.

[0005] The heating film assembly according to the first aspect of the utility model includes: a first film body and a second film body, the first film body and the second film body are arranged at intervals in the length direction; a connecting component, the connecting component is connected between the first film body and the second film body.

[0006] According to the heating film assembly of the utility model, by segmenting the heating film into a first film body and a second film body with appropriate sizes, and adhesively bonding the first film body and the second film body in segments, the pasting difficulty of the heating film is reduced, the bonding reliability of the heating film is improved, and the versatility can also be improved by combining heating films of different sizes, reducing the production cost. The first film body and the second film body are connected by a connecting component, reducing the assembly difficulty and having stable and reliable connection.

[0007] In some embodiments, the connecting component includes a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are connected by snap fit.

[0008] In some embodiments, a groove is formed on the first connecting piece, a clamping groove is formed on the peripheral wall of the groove, a clamping post is formed on the second connecting piece, and the clamping post extends into the groove and is clamped with the clamping groove.

[0009] In some embodiments, a clamping foot matching the shape of the clamping groove is formed at the end of the clamping post, and the clamping foot extends into the clamping groove.

[0010] In some embodiments, a first connecting portion is formed at one end of the first film body, a second connecting portion is formed on the first connecting member, and the first film body and the first connecting member are cooperatively connected through the first connecting portion and the second connecting portion; a third connecting portion is formed at one end of the second film body, a fourth connecting portion is formed on the second connecting member, and the second film body and the second connecting member are cooperatively connected through the third connecting portion and the fourth connecting portion.

[0011] In some embodiments, both the second connecting portion and the fourth connecting portion are formed as connecting grooves, both the first connecting portion and the third connecting portion are formed as connecting holes, and the connecting holes are respectively sleeved in the corresponding connecting grooves.

[0012] In some embodiments, a bending portion is formed on one of the first film body and the second film body, and the bending portion is formed at an end away from the connecting assembly.

[0013] In some embodiments, the heating film assembly further includes: a plug, and the plug is electrically connected to the bending portion through a power cord.

[0014] In some embodiments, the connecting assembly is a conductive member.

[0015] The battery pack according to the second aspect of the present invention includes the heating film assembly according to the first aspect of the present invention above.

[0016] By providing the heating film assembly according to the first aspect, the production difficulty of the battery pack is reduced and the production efficiency of the battery pack is improved according to the battery pack of the present invention.

[0017] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a heating film assembly according to an embodiment of the present invention;

[0019] Figure 2 is Figure 1 an exploded schematic diagram of the heating film assembly shown in ;

[0020] Figure 3 is Figure 1 a front view schematic diagram of the heating film assembly shown in ;

[0021] Figure 4 is Figure 3 a sectional view taken along line A-A of the heating film assembly shown in.

[0022] Reference numerals:

[0023] 100, Heating film assembly; 1, First film body; 11, First connection part; 2, Second film body; 21, Third connection part; 22, Bending part; 3, Connection assembly; 31, First connector; 311, Groove; 312, Card slot; 313, Second connection part; 32, Second connector; 321, Card post; 322, Card foot; 323, Fourth connection part; 4, Plug; 5, Power cord. Detailed implementation mode

[0024] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0025] Below with reference to Figures 1-4 Describe the heating film assembly 100 according to the embodiment of the first aspect of the present invention.

[0026] As Figures 1-4 shown, the heating film assembly 100 according to the embodiment of the first aspect of the present invention includes: a first film body 1, a second film body 2, and a connection assembly 3.

[0027] Specifically, the first film body 1 and the second film body 2 are arranged at intervals in the length direction, and the connection assembly 3 is connected between the first film body 1 and the second film body 2. It can be understood that the heating film is segmented into the first film body 1 and the second film body 2 of appropriate sizes, and the first film body 1 and the second film body 2 are adhesively bonded in segments, which reduces the pasting difficulty of the heating film. The first film body 1 and the second film body 2 are connected by the connection assembly 3, and the operation is simple and convenient.

[0028] For the heating film assembly 100 according to the embodiment of the present invention, by segmenting the heating film into the first film body 1 and the second film body 2 of appropriate sizes and adhesively bonding the first film body 1 and the second film body 2 in segments, the pasting difficulty of the heating film is reduced, the bonding reliability of the heating film is improved, and the versatility can also be improved by combining heating films of different sizes, reducing the production cost. The first film body 1 and the second film body 2 are connected by the connection assembly 3, which reduces the assembly difficulty and the connection is stable and reliable.

[0029] In some embodiments of the present invention, as Figure 2 shown, the connection assembly 3 includes a first connector 31 and a second connector 32, and the first connector 31 and the second connector 32 are snap-connected. Thus, the snap connection makes the installation or maintenance of the heating film assembly 100 more convenient, reduces the assembly and maintenance difficulty, improves the assembly speed, and thus improves the production efficiency.

[0030] In some embodiments of the present utility model, as Figure 4 shown, a groove 311 is formed on the first connecting member 31, and a clamping groove 312 is formed on the peripheral wall of the groove 311. A clamping post 321 is formed on the second connecting member 32. The clamping post 321 extends into the groove 311 and is clamped with the clamping groove 312. That is to say, the groove 311 communicates with the clamping groove 312. The groove 311 extends in the vertical direction, the clamping groove 312 extends in the horizontal direction, the clamping post 321 extends into the groove 311, and the clamping post 321 cooperates with the clamping groove 312 for clamping connection. Thus, the connection mode of the first connecting member 31 and the second connecting member 32 is simple, convenient for assembly, and the connection structure is stable, ensuring the reliability and safety of the connection assembly 3.

[0031] In some embodiments of the present utility model, as Figure 4 shown, a clamping foot 322 matching the shape of the clamping groove 312 is formed at the end of the clamping post 321, and the clamping foot 322 extends into the clamping groove 312. Thus, the cooperation between the clamping foot 322 and the clamping groove 312 can effectively prevent the connection assembly 3 from being displaced, loosened or detached due to external forces during use, enhancing the stability of the overall structure.

[0032] In some embodiments of the present utility model, a first connecting portion 11 is formed at one end of the first film body 1, a second connecting portion 313 is formed on the first connecting member 31, and the first film body 1 and the first connecting member 31 are connected by cooperation of the first connecting portion 11 and the second connecting portion 313; a third connecting portion 21 is formed at one end of the second film body 2, a fourth connecting portion 323 is formed on the second connecting member 32, and the second film body 2 and the second connecting member 32 are connected by cooperation of the third connecting portion 21 and the fourth connecting portion 323. Thus, the cooperation between the first connecting portion 11 and the second connecting portion 313 ensures the connection stability between the first film body 1 and the first connecting member 31, and the cooperation between the third connecting portion 21 and the fourth connecting portion 323 ensures the connection stability between the second film body 2 and the second connecting member 32.

[0033] Furthermore, as Figure 2 and Figure 4 shown, both the second connecting portion 313 and the fourth connecting portion 323 are formed as connecting grooves, and both the first connecting portion 11 and the third connecting portion 21 are formed as connecting holes. The connecting holes are respectively sleeved in the corresponding connecting grooves. Thus, the connection mode between the first film body 1 and the first connecting member 31 is simple, the connection mode between the second film body 2 and the second connecting member 32 is simple, and the whole is stable and reliable, convenient for disassembly and maintenance.

[0034] In some embodiments of the present utility model, as Figure 1As shown, a bent portion 22 is formed on one of the first film body 1 and the second film body 2, and the bent portion 22 is formed at an end away from the connection component 3. Thus, the design of the bent portion 22 facilitates the connection of the heating film assembly 100 to the battery during assembly, optimizes the space utilization, and ensures the connection stability.

[0035] In some embodiments of the present invention, as Figure 1 shown, the heating film assembly 100 further includes: a plug 4, and the plug 4 is electrically connected to the bent portion 22 through a power cord 5. Thus, the assembly convenience, flexibility, and safety of the heating film assembly 100 are improved.

[0036] Preferably, the connection component 3 is a conductive member. For example, the material of the connection component 3 can be metals such as copper, aluminum, nickel, and iron; the material of the connection component 3 can also be alloy materials such as copper alloy and aluminum alloy; the material of the connection component 3 can further be polymers such as polyaniline, polypyrrole, and polythiophene, as well as carbon-based materials or conductive ceramics.

[0037] Here, considering the conductivity and production cost, the connection component 3 is preferably made of copper.

[0038] The battery pack according to the second aspect embodiment of the present invention includes the heating film assembly 100 according to the first aspect embodiment of the present invention above.

[0039] The battery pack according to the embodiment of the present invention reduces the production difficulty of the battery pack and improves the production efficiency of the battery pack by providing the heating film assembly 100 according to the first aspect embodiment above.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0042] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation" and the like shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A heating film assembly, characterized in that, Comprising: A first film body and a second film body, the first film body and the second film body being spaced apart in the length direction; A connecting assembly, the connecting assembly being connected between the first film body and the second film body.

2. The heating film assembly according to claim 1, wherein The connecting assembly includes a first connecting member and a second connecting member, the first connecting member and the second connecting member being snap-connected.

3. The heating film assembly according to claim 2, wherein, A groove is formed on the first connecting member, a clamping groove is formed on the peripheral wall of the groove, a clamping post is formed on the second connecting member, and the clamping post extends into the groove and is clamped with the clamping groove.

4. The heating film assembly according to claim 3, wherein A clamping foot matching the shape of the clamping groove is formed at the end of the clamping post, and the clamping foot extends into the clamping groove.

5. The heating film assembly according to claim 4, wherein, A first connecting portion is formed at one end of the first film body, a second connecting portion is formed on the first connecting member, and the first film body and the first connecting member are connected in cooperation through the first connecting portion and the second connecting portion; a third connecting portion is formed at one end of the second film body, a fourth connecting portion is formed on the second connecting member, and the second film body and the second connecting member are connected in cooperation through the third connecting portion and the fourth connecting portion.

6. The heating film assembly according to claim 5, wherein, Both the second connecting portion and the fourth connecting portion are formed as connecting grooves, both the first connecting portion and the third connecting portion are formed as connecting holes, and the connecting holes are respectively sleeved in the corresponding connecting grooves.

7. The heating film assembly according to claim 5, wherein, A bending portion is formed on one of the first film body and the second film body, and the bending portion is formed at one end away from the connecting assembly.

8. The heating film assembly according to claim 7, wherein Further comprising: A plug, the plug being electrically connected to the bending portion through a power cord.

9. The heating film assembly according to any one of claims 1-8, characterized in that, The connecting assembly is an electrically conductive member.

10. A battery pack, characterized in that, Including the heating film assembly according to any one of claims 1-9.

Images