Battery packaging components and battery packs

Abstract

This utility model discloses a battery encapsulation assembly and a battery pack, belonging to the field of battery technology. In the battery encapsulation assembly of this utility model, a receiving space for accommodating a first adhesive material is formed between two adhesive-blocking members and two connecting members. The adhesive-blocking members and connecting members can then block the first adhesive material, preventing it from leaking out of the receiving space during the potting process. This prevents the first adhesive material from overflowing onto the outside of the battery encapsulation assembly, improving the aesthetics of the battery encapsulation assembly, reducing the loss of the first adhesive material, thereby improving the connection stability between the battery pack and the battery encapsulation assembly, and reducing costs. The battery pack of this utility model, by applying the battery encapsulation assembly, can prevent the first adhesive material from overflowing onto the outside of the battery encapsulation assembly, resulting in better aesthetics, reduced loss of the first adhesive material, improved connection stability between the battery pack and the battery encapsulation assembly, and reduced costs.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery packaging component and battery pack. Background Technology

[0002] Battery packs typically use encapsulation components to encapsulate the battery pack. These components not only protect the battery pack but also improve its structural strength, thereby enhancing the ease and reliability of battery pack installation.

[0003] In related technologies, encapsulation components typically include a mounting plate for supporting the battery pack, which is then bonded to the mounting plate using an adhesive material. However, in practice, adhesive materials often have a certain degree of fluidity, making them prone to leakage. This means that the adhesive material can easily overflow onto the outside of the encapsulation component, affecting not only aesthetics but also increasing adhesive material consumption, raising costs, and impacting the stability of the connection between the battery pack and the mounting plate. Utility Model Content

[0004] One objective of this invention is to provide a battery encapsulation assembly that can prevent leakage of the first adhesive material, improve the connection stability between the battery pack and the battery encapsulation assembly, reduce costs, and improve aesthetics.

[0005] Another objective of this invention is to provide a battery pack that, by applying the aforementioned battery encapsulation components, can improve the connection stability between the battery pack and the battery encapsulation components, reduce costs, and enhance aesthetics.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] A battery encapsulation assembly includes a mounting plate and a sealant unit, wherein the sealant unit includes:

[0008] Two connectors are fixedly disposed at a distance from the mounting plate along a first direction. Both connectors are used to connect to the battery pack. The battery pack is fixedly connected to the mounting plate by a first adhesive material.

[0009] Two adhesive baffles are respectively disposed at both ends of the connector along the second direction, so that a receiving space for accommodating the first adhesive material is formed between the two adhesive baffles and the two connectors. The adhesive baffles are fixedly connected to the connectors to prevent the first adhesive material from leaking out of the receiving space. The first direction is perpendicular to the second direction.

[0010] To achieve the above objectives, a battery pack is also provided, including the battery encapsulation assembly as described above.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The battery encapsulation assembly of this utility model has a receiving space formed between two adhesive baffles and two connectors for accommodating a first adhesive material. The adhesive baffles and connectors can block the first adhesive material, preventing it from leaking out of the receiving space during the potting process. This prevents the first adhesive material from overflowing onto the outside of the battery encapsulation assembly, which not only improves the aesthetics of the battery encapsulation assembly but also reduces the loss of the first adhesive material, thereby improving the connection stability between the battery pack and the battery encapsulation assembly and reducing costs.

[0013] The battery pack of this utility model, by applying the above-mentioned battery encapsulation component, can prevent the first adhesive material from leaking out of the containment space during the potting process, thereby preventing the first adhesive material from overflowing to the outside of the battery encapsulation component. This not only improves the aesthetics of the battery encapsulation component, but also reduces the loss of the first adhesive material, thereby improving the connection stability between the battery pack and the battery encapsulation component and reducing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the battery pack structure in an embodiment of the present invention;

[0015] Figure 2 This is a first structural schematic diagram of the battery packaging assembly in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the second structure of the battery packaging assembly in an embodiment of the present invention;

[0017] Figure 4 for Figure 3 Enlarged view of point A;

[0018] Figure 5 for Figure 3 Enlarged view of point B;

[0019] Figure 6 This is a schematic diagram of the structure of the adhesive-blocking component in an embodiment of this utility model.

[0020] Figure label:

[0021] 100. Battery pack; 1. Mounting plate; 2. Adhesive-blocking unit; 21. Connector; 211. First side; 212. Second side; 22. Adhesive-blocking component; 221. Mounting part; 2211. First end; 2212. Second end; 2213. First gap; 2214. Second gap; 222. Adhesive-blocking part; 23. Accommodation space. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] like Figures 1 to 6 As shown, this embodiment provides a battery encapsulation assembly and a battery pack. The battery pack includes a battery pack 100 and a battery encapsulation assembly capable of enclosing the battery pack 100. Exemplarily, the battery encapsulation assembly includes a mounting plate 1 and a cover, the cover and the mounting plate 1 enclosing a mounting cavity for accommodating the battery pack 100.

[0030] Specifically, multiple battery cells of equal capacity and internal resistance are connected in series or parallel to form a battery pack. The battery pack, battery management system (BMS), thermal management system, electrical connection system (including high-voltage / low-voltage connectors, wiring harnesses, etc.), structural components (including housing, brackets, etc.), and protective parts are placed inside a casing and sealed with a cover, forming a complete functional unit that can directly output electrical energy. The battery pack, as a rechargeable battery, is the power source for new energy vehicles.

[0031] The battery encapsulation assembly also includes a sealant unit 2, which includes two connectors 21 and two sealant components 22. The two connectors 21 are fixedly mounted on the mounting plate 1 at a distance along a first direction. Both connectors 21 are used to connect to the battery pack 100. The battery pack 100 is fixedly connected to the mounting plate 1 through a first adhesive material. The two sealant components 22 are respectively disposed at both ends of the connectors 21 along a second direction, so that a receiving space 23 for accommodating the first adhesive material is formed between the two sealant components 22 and the two connectors 21. The sealant components 22 are fixedly connected to the connectors 21 to prevent the first adhesive material from leaking out of the receiving space 23. The first direction is perpendicular to the second direction.

[0032] In this embodiment of the battery encapsulation assembly, a receiving space 23 for accommodating the first adhesive material is formed between the two adhesive baffles 22 and the two connectors 21. The adhesive baffles 22 and the connectors 21 can block the first adhesive material, preventing it from leaking out of the receiving space 23 during the potting process. This prevents the first adhesive material from overflowing to the outside of the battery encapsulation assembly, which not only improves the aesthetics of the battery encapsulation assembly but also reduces the loss of the first adhesive material, thereby improving the connection stability between the battery pack 100 and the battery encapsulation assembly and reducing costs.

[0033] For example, the first adhesive material is glue; this embodiment does not limit the type of glue.

[0034] Specifically, such as Figure 1 As shown, the battery pack 100 is placed in the receiving space 23, and the frame of the battery pack 100 is fixedly connected to the connector 21, thereby improving the stability of the battery pack 100 installation.

[0035] In some embodiments, the battery pack 100 includes a plurality of stacked battery cells.

[0036] In some embodiments, the adhesive baffle 22 is a long strip extending along a first direction, which can then be matched with a rectangular battery cell, that is, the length direction of the battery cell is parallel to the first direction.

[0037] In some other embodiments, the adhesive barrier 22 may also be an arc-shaped structure, which can then be matched with a cylindrical battery cell.

[0038] In some embodiments, such as Figures 2 to 6 As shown, the adhesive barrier 22 includes a mounting portion 221 and an adhesive barrier 222. The mounting portion 221 is fixedly connected to the mounting plate 1. The adhesive barrier 222 is fixedly connected to the mounting portion 221, and the adhesive barrier 222 and the mounting portion 221 are arranged in an L-shape. The two ends of the adhesive barrier 222 along the first direction are fixedly connected to two connectors 21 respectively. This not only improves the convenience of connecting the adhesive barrier 22 to the mounting plate 1, but also improves the structural strength of the adhesive barrier 22, avoiding problems such as deformation of the adhesive barrier 22 under the extrusion of the first adhesive material. This is beneficial to improving the stability of the connection between the battery pack 100 and the mounting plate 1 through the first adhesive material.

[0039] In some embodiments, the mounting part 221 and the mounting plate 1 are fixedly connected by a second adhesive material, which can ensure that the adhesive barrier 22 can be firmly fixed to the mounting plate 1 and prevent the first adhesive material from leaking from the gap between the mounting part 221 and the mounting plate 1. At the same time, there is no need to perform drilling or other operations on the mounting plate 1 and the mounting part 221, and the structural strength of the mounting plate 1 will not be affected.

[0040] For example, the second adhesive material is an adhesive backing, which not only ensures the stability of the connection between the mounting part 221 and the mounting plate 1, but also facilitates the bonding operation. Compared with the method of bonding the mounting part 221 and the mounting plate 1 with glue, there is no need to wait for the glue to solidify, which helps to improve the convenience and efficiency of assembling the adhesive-blocking part 22 and the mounting plate 1. Of course, in other embodiments, the second adhesive material can also be glue.

[0041] In some embodiments, the adhesive barrier 222 and the connector 21 are fixedly connected by a third adhesive material, which can not only ensure the reliability of the connection between the adhesive barrier 222 and the connector 21, but also improve the sealing of the accommodating space 23 and prevent the first adhesive material from leaking from the gap between the adhesive barrier 222 and the connector 21.

[0042] For example, the third adhesive material is glue (the type of glue is not limited in this embodiment), which can not only ensure the stability of the connection between the mounting part 221 and the mounting plate 1, but also improve the sealing of the accommodating space 23 and prevent leakage from the gap between the self-blocking glue part 222 of the first adhesive material and the connector 21.

[0043] It should be noted that the first, second, and third adhesive materials can use the same type of glue, which facilitates the formation of a whole after the first, second, and third adhesive materials are cured. This is beneficial to improving the installation stability of the battery pack 100 and the mounting plate 1, reducing procurement costs, and improving the convenience of battery pack encapsulation operations.

[0044] In some embodiments, the mounting portion 221 is located on the side of the adhesive barrier portion 222 facing the battery pack 100, thereby improving the blocking effect of the adhesive barrier portion 22 on the first adhesive material and preventing the first adhesive material from leaking out of the receiving space 23.

[0045] For ease of description, the two ends of the mounting part 221 that are disposed opposite to each other along the first direction are respectively referred to as the first end 2211 and the second end 2212.

[0046] In some embodiments, a first gap 2213 is provided between the first end 2211 and the opposite connecting member 21, which facilitates the placement of the mounting part 221 between the two connecting members 21, avoids the mounting part 221 from being pressed tightly against the two connecting members 21, and helps to make the mounting part 221 fit more tightly with the mounting plate 1, thereby improving the reliability of the connection between the mounting part 221 and the mounting plate 1 and reducing the risk of leakage of the first adhesive material.

[0047] In some embodiments, a second gap 2214 is provided between the second end 2212 and the opposite connecting member 21, which facilitates the placement of the mounting part 221 between the two connecting members 21, avoids the mounting part 221 from being pressed tightly against the two connecting members 21, and helps to make the mounting part 221 fit more tightly with the mounting plate 1, thereby improving the reliability of the connection between the mounting part 221 and the mounting plate 1 and reducing the risk of leakage of the first adhesive material.

[0048] In some embodiments, the first gap 2213 is less than or equal to 1.5 mm. It should be noted that if the first gap 2213 is too large, it will increase the risk of leakage of the first adhesive material. Furthermore, since adhesives typically have a certain degree of viscosity, limiting the first gap 2213 to less than or equal to 1.5 mm can prevent the first adhesive material from leaking outward from the receiving space 23, and also improve the convenience and reliability of assembling the mounting part 221 with the mounting plate 1.

[0049] In some embodiments, the second gap 2214 is less than or equal to 1.5 mm. It should be noted that if the second gap 2214 is too large, it will increase the risk of leakage of the first adhesive material. Furthermore, since adhesives typically have a certain degree of viscosity, limiting the second gap 2214 to less than or equal to 1.5 mm can prevent the first adhesive material from leaking outward from the receiving space 23, and also improve the convenience and reliability of assembling the mounting part 221 with the mounting plate 1.

[0050] In some embodiments, the connector 21 includes a first side 211 and a second side 212 disposed opposite to each other along a first direction, wherein the second side 212 is further away from the other connector 21 than the first side 211 along the first direction. Further, the adhesive-blocking portion 222 is flush with the second sides 212 of the two connectors 21 at both ends along the first direction, thereby improving the sealing of the accommodating space 23 and preventing the first adhesive material from leaking outward from the gap between the adhesive-blocking portion 222 and the connector 21.

[0051] In some embodiments, the adhesive barrier 22 is an insulating component, which can prevent short circuits caused by the adhesive barrier 22 being connected to the casing of the battery cell, thereby improving the reliability and safety of the battery pack.

[0052] For example, the adhesive barrier 22 is made of an insulating material. Of course, in other embodiments, the adhesive barrier 22 may also include a core and an insulating layer covering the outside of the core; for example, the core is made of a rigid material such as a metal, which can improve the structural strength of the adhesive barrier 22 and has the effect of improving the adhesive barrier 22 in preventing leakage of the first adhesive material; the insulating layer is covered on the outside of the core by coating or pasting.

[0053] In some embodiments, the adhesive barrier 22 is capable of elastic deformation; in other words, the adhesive barrier 22 is made of a flexible material. Exemplarily, flexible materials include rubber, plastic, etc. This configuration allows the adhesive barrier 22 to undergo elastic deformation when subjected to forces generated by the first adhesive material, preventing breakage and further reducing the risk of leakage of the first adhesive material.

[0054] In some embodiments, the distance between the adhesive barrier 22 and the battery pack 100 along the second direction is less than or equal to 1.5 mm. It should be noted that if the distance between the adhesive barrier 22 and the battery pack 100 along the second direction is too large, it indicates that the amount of the first adhesive material used is excessive, which can easily lead to material waste and increased costs. By limiting the distance between the adhesive barrier 22 and the battery pack 100 along the second direction to less than or equal to 1.5 mm, the amount of material used for the adhesive barrier 22 can be reduced while ensuring that the battery pack 100 and the mounting plate 1 can be firmly fixed by the first adhesive material, thus reducing costs.

[0055] In some embodiments, the mounting plate 1 is a heat exchange plate, which can then be used to perform thermal management on the battery pack 100, thereby improving the performance and safety of the battery pack 100.

[0056] In some embodiments, the heat exchange plate includes a first plate and a second plate fixedly connected, forming a heat exchange channel between the first plate and the second plate. Exemplarily, the second plate is fixed to the bottom of the first plate. For ease of description, the side of the second plate facing the first plate is referred to as the first surface, and the side of the second plate away from the first plate is referred to as the second surface. The second plate protrudes from the first surface to the second surface to form a first protrusion on the second surface, and a first groove corresponding to the first protrusion is formed on the first surface. The first surface is fixedly connected to the first plate, thereby forming a heat exchange channel in the first groove. In other words, the first plate has a flat plate structure, which provides more stable support for the battery pack 100, improving the convenience and stability of battery pack 100 installation, and reducing the risk of leakage of the first adhesive material.

[0057] For example, the second plate is manufactured by a stamping process to form a first protrusion on the second surface and a first groove corresponding to the first protrusion on the first surface, which not only facilitates processing but also helps to reduce costs.

[0058] In some embodiments, the battery packaging assembly further includes a base plate, which is fixed to the side of the mounting plate 1 away from the battery pack 100. The base plate can support and strengthen the mounting plate 1, thereby improving the reliability of the battery packaging assembly and thus improving the safety of the battery pack.

[0059] In some embodiments, at least two battery packs 100 and at least two adhesive barrier units 2 are provided, with each adhesive barrier unit 2 corresponding to a battery pack 100. It should be noted that by providing at least two battery packs 100, the energy stored in the battery pack can be increased to meet the needs of more users; by making the adhesive barrier units 2 correspond one-to-one with the battery packs 100, leakage of the first adhesive material between each battery pack 100 and the mounting plate 1 can be avoided.

[0060] For example, the assembly process of the adhesive barrier 22 in this embodiment is as follows:

[0061] Two connectors 21 are fixed to the mounting plate 1 by welding or other means, and the two connectors 21 are spaced apart along the first direction.

[0062] Two adhesive-blocking parts 22 are placed at both ends of the two connectors 21 along the second direction. Then, the mounting part 211 of the connector 21 is fixedly connected to the mounting plate 1 by adhesive backing. The adhesive-blocking parts 222 are flush with the second side 212 of the two connectors 21 along the first direction. Then, glue is filled between the adhesive-blocking parts 222 and the connectors 21 to fix the adhesive-blocking parts 222 and the connectors 21. The glue can seal the gap between the adhesive-blocking parts 222 and the connectors 21. Then, the first adhesive material can be injected into the receiving space 23 to fix the battery pack 100 to the mounting plate 1.

[0063] In summary, the battery pack of this embodiment, by applying the battery encapsulation component described above, can prevent the first adhesive material from leaking out of the containing space 23 during the potting process, thereby preventing the first adhesive material from overflowing to the outside of the battery encapsulation component. This not only improves the aesthetics of the battery encapsulation component but also reduces the loss of the first adhesive material, thereby improving the connection stability between the battery pack 100 and the battery encapsulation component and reducing costs.

[0064] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A battery pack assembly, characterized by, It includes a mounting plate (1) and a sealant unit (2), wherein the sealant unit (2) includes: Two connectors (21) are fixedly disposed at a distance from each other on the mounting plate (1) along a first direction. Both connectors (21) are used to connect to the battery pack (100). The battery pack (100) is fixedly connected to the mounting plate (1) by a first adhesive material. Two adhesive baffles (22) are respectively disposed at both ends of the connector (21) along the second direction, so that a receiving space (23) for accommodating the first adhesive material is formed between the two adhesive baffles (22) and the two connectors (21). The adhesive baffles (22) are fixedly connected to the connectors (21) to prevent the first adhesive material from leaking out of the receiving space (23). The first direction is perpendicular to the second direction.

2. The battery pack assembly of claim 1, wherein, The adhesive barrier (22) includes: Mounting part (221), which is fixedly connected to the mounting plate (1); The adhesive-blocking part (222) is fixedly connected to the mounting part (221), and the adhesive-blocking part (222) and the mounting part (221) are arranged in an L-shape. The two ends of the adhesive-blocking part (222) along the first direction are respectively fixedly connected to the two connecting members (21).

3. The battery pack assembly of claim 2, wherein, The mounting part (221) and the mounting plate (1) are fixedly connected by a second adhesive material; And / or, the adhesive barrier (222) and the connector (21) are fixedly connected by a third adhesive material.

4. The battery pack assembly of claim 2, wherein, The mounting part (221) is located on the side of the adhesive-blocking part (222) facing the battery pack (100).

5. The battery pack assembly of claim 4, wherein, The mounting portion (221) includes a first end (2211) and a second end (2212) disposed opposite to each other along the first direction; A first gap (2213) is provided between the first end (2211) and the connector (21) opposite thereto; A second gap (2214) is provided between the second end (2212) and the connector (21) opposite thereto.

6. The battery pack assembly of claim 5, wherein, The first gap (2213) is less than or equal to 1.5 mm; The second gap (2214) is less than or equal to 1.5 mm.

7. The battery pack assembly of any one of claims 2-6, wherein, The connector (21) includes a first side (211) and a second side (212) disposed opposite to each other along a first direction, wherein along the first direction, the second side (212) is further away from the other connector (21) than the first side (211); The adhesive-blocking portion (222) is flush with the second side (212) of the two connectors (21) at both ends along the first direction.

8. The battery pack assembly of any one of claims 1-6, wherein, The adhesive-blocking component (22) is an insulating component.

9. The battery pack assembly of any one of claims 1-6, wherein, Along the second direction, the distance between the baffle (22) and the battery pack (100) is less than or equal to 1.5 mm.

10. The battery pack assembly of any one of claims 1-6, wherein, The mounting plate (1) is a heat exchange plate.

11. The battery packaging assembly according to any one of claims 1-6, characterized in that, The battery packaging assembly also includes a base plate, which is fixed to the mounting plate (1) on the side opposite to the battery pack (100).

12. The battery pack assembly of any one of claims 1-6, wherein, The battery pack (100) and the adhesive blocking unit (2) are each provided with at least two units, and the adhesive blocking unit (2) is provided in a one-to-one correspondence with the battery pack (100).

13. A battery pack, characterized by Includes the battery encapsulation assembly as described in any one of claims 1-12.

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