Packaging structure of soft package battery pack

Abstract

The embodiment of the utility model discloses a packaging structure of a soft package battery pack, and relates to the technical field of packaging, and the packaging structure comprises a supporting structure which comprises a cavity; wherein the cavity is used for containing the soft package battery pack, and under the condition that the soft package battery pack is placed in the cavity, the first end face of the soft package battery pack is opposite to the bottom face of the supporting structure; the at least one glue injection hole is formed in the side wall of the supporting structure so as to communicate the cavity with the outside; wherein the lower edge of the glue injection hole is located in a preset area of the side wall of the supporting structure, the preset area is an area limited by the orthographic projection of the first end face on the side wall and the orthographic projection of the plane where the interface of the sealing edge and the tab is located on the side wall, the sealing edge is arranged on the first end face, and the tab is arranged on the sealing edge; and the pouring sealant is filled in a gap between the plane where the lower edge of the glue injection hole is located and the bottom surface of the supporting structure through the at least one glue injection hole. The packaging structure of the soft package battery pack provided by the embodiment of the utility model can improve the waterproof performance.

Description

Technical Field

[0001] This application relates to the field of packaging technology, and more specifically, to a packaging structure for a pouch battery pack. Background Technology

[0002] With the development of modern industry and life, the application scenarios of portable power tools (such as electric drills, chainsaws, gardening equipment, etc.) are becoming increasingly widespread, and the requirements for battery performance are also constantly increasing. Since portable power tools usually need to work continuously under high loads, stringent requirements are placed on the battery's endurance and high-current discharge performance.

[0003] Currently, pouch battery packs are an ideal choice for power tool battery modules due to their high energy density, lightweight design, and good rate performance (supporting high-current discharge). For example, in high-power electric wrenches or outdoor work equipment, pouch battery packs can provide stable power output to meet the instantaneous high torque requirements of the tools.

[0004] Because pouch battery packs have insufficient waterproofing, encapsulation is necessary to compensate for this deficiency. Existing pouch battery pack encapsulation structures improve waterproofing by coating the tabs with a protective film. However, the waterproofing performance is poor due to insufficient adhesion between the surface-coated protective film and the tab surface. Utility Model Content

[0005] This application provides a packaging structure for a pouch battery pack that improves waterproof performance.

[0006] In a first aspect, embodiments of this application provide a packaging structure for a pouch battery pack. The pouch battery pack has a sealing edge on its first end face, the orthographic projection of the sealing edge onto the first end face being within the range of the first end face. The sealing edge has tabs, the orthographic projection of the tabs onto the sealing edge being within the surface range of the sealing edge. The structure includes: a support structure comprising a cavity; wherein the cavity is used to place the pouch battery pack, and when the pouch battery pack is placed in the cavity, the first end face of the pouch battery pack is opposite to the bottom surface of the support structure; at least one injection hole is disposed on the side wall of the support structure to connect the cavity to the outside; wherein the lower edge of the injection hole is located within a predetermined area of ​​the side wall of the support structure, the predetermined area being the area defined by the orthographic projection of the first end face onto the side wall and the orthographic projection of the plane containing the interface between the sealing edge and the tabs onto the side wall; and potting compound, which fills the gap between the plane containing the lower edge of the injection hole and the bottom surface of the support structure through the at least one injection hole.

[0007] In one possible implementation, the packaging structure further includes: a first buffer layer covering a second end face of the pouch battery pack, the second end face being opposite to the first end face; and a second buffer layer covering a side region of the pouch battery pack; wherein the side region is the side of the pouch battery pack defined from the first end face to the second end face.

[0008] In one possible implementation, at least one of the first buffer layer and the second buffer layer is a thermally conductive buffer layer.

[0009] In one possible implementation, the support structure includes the bottom surface and the sidewalls, the sidewalls being disposed on the bottom surface to form the cavity; the sidewalls include: a first sidewall, perpendicularly connected to the bottom surface, the dimensions of the first sidewall matching the dimensions of the third end face of the pouch battery pack, the third end face of the pouch battery pack being opposite to the first sidewall; a second sidewall, a right-angled bend structure, including a first right-angled side and a second right-angled side, the first right-angled side being perpendicularly connected to the bottom surface, and the second right-angled side being perpendicularly connected to the first sidewall; a third sidewall, being... The right-angled bending structure includes a third right-angled side and a fourth right-angled side. The third right-angled side is perpendicularly connected to the bottom surface and opposite to the first right-angled side. The fourth right-angled side is perpendicularly connected to the first sidewall and opposite to the second right-angled side. The fourth sidewall is perpendicularly connected to the bottom surface, the first right-angled side, and the third right-angled side, and opposite to the first sidewall. In a first direction, the fourth sidewall covers a portion of the fourth end face of the pouch battery pack, and the fourth end face of the pouch battery pack is opposite to the fourth sidewall. The first direction is perpendicular to the bottom surface.

[0010] In one possible implementation, the packaging structure further includes: a third buffer layer disposed between the first sidewall and the third end face, and covering the area of ​​the third end face located between the first end face and the second end face, the second end face being the end face of the pouch battery pack opposite to the first end face; and a fourth buffer layer covering the area of ​​the pouch battery pack other than the first end face and the third end face and not covered by the second sidewall, the third sidewall, and the fourth sidewall.

[0011] In one possible implementation, at least one of the third and fourth buffer layers is a thermally conductive buffer layer.

[0012] In one possible implementation, the packaging structure further includes a protection board; an interface and multiple positioning posts are also provided on the side wall of the support structure away from the pouch battery pack; wherein: the interface is connected to the tabs of the pouch battery pack; when the protection board is positioned at the location defined by the multiple positioning posts, the pads of the protection board correspond to the interface.

[0013] In one possible implementation, the packaging structure further includes a fifth buffer layer disposed between at least one pair of adjacent cells in the pouch cell pack.

[0014] In one possible implementation, the fifth buffer layer is a thermally conductive buffer layer.

[0015] Secondly, embodiments of this application provide a packaging structure for a soft-pack battery pack, including: an upper cover, a lower cover, and the packaging structure described in any one of the first aspects; wherein: the upper cover and the lower cover together form a cavity, and the packaging structure described in any one of the first aspects is placed in the cavity.

[0016] The beneficial effects of the packaging structure of the soft-pack battery pack in the embodiments of this application are:

[0017] The first end face of the pouch battery pack is sealed, and its orthographic projection is within the range of the first end face. A tab is also provided on the seal, and the orthographic projection of the tab is within the surface range of the seal. In other words, viewed from the first end face to the tab, due to the range of their orthographic projections, the space occupied by the seal and the tab decreases sequentially.

[0018] Thus, when the pouch battery pack is placed inside the cavity of the support structure, since the first end face of the pouch battery pack is opposite to the bottom surface of the support structure, the gaps in the space defined by the plane where the first end face is located, the bottom surface of the support structure, and the side wall of the support structure increase sequentially when viewed from the direction from the first end face to the bottom surface of the support structure.

[0019] Furthermore, at least one injection hole is provided on the side wall of the support structure to connect the cavity to the outside. The lower edge of the injection hole is located within a predetermined area of ​​the side wall of the support structure. This predetermined area is defined by the orthographic projection of the first end face on the side wall and the orthographic projection of the plane containing the interface between the sealing edge and the tab on the side wall. Therefore, when the pouch battery pack is placed inside the cavity of the support structure, the injection hole communicates with the gap in the space defined by the plane containing the first end face, the bottom surface of the support structure, and the side wall, and the injection hole is located above the projection of the plane containing the interface on the side wall.

[0020] In this way, the potting compound can be filled into the gap between the plane containing the lower edge of the potting hole and the bottom surface of the supporting structure through at least one injection hole. Since the tab is located within the area defined by the plane containing the lower edge of the injection hole and the bottom surface of the supporting structure, the potting compound can seal the tab, thus providing waterproofing and dustproofing.

[0021] Furthermore, compared to the waterproofing method of coating a protective film on the surface, the potting compound fills the gap between the plane where the lower edge of the injection hole is located and the bottom surface of the support structure, making the potting compound adhere more tightly to the surface of the tab, thus improving the sealing, waterproofing and dustproofing.

[0022] Furthermore, since the lower edge of the injection hole is located within a predetermined area on the side wall of the support structure—the area defined by the orthographic projection of the first end face onto the side wall and the orthographic projection of the plane containing the interface between the sealing edge and the tab—filling the potting compound through the injection hole restricts the filling area to the area defined by the bottom surface of the support structure and the plane containing the lower edge of the injection hole. This reduces the contact area between the potting compound and the pouch battery pack while ensuring sealing, waterproofing, and dustproofing. Consequently, when a portion of the pouch battery pack requires repair, the difficulty of peeling the pouch battery pack from the potting compound is reduced, improving repair performance.

[0023] Furthermore, since the packaging structure includes a support structure, at least one injection hole, and potting compound, wherein the support structure includes a cavity, the packaging structure is simple, reducing processing difficulty and cost. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a pouch battery pack provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the packaging structure of a soft-pack battery pack provided in an embodiment of this application;

[0026] Figure 3 This is a split view of the packaging structure of a pouch battery pack provided in an embodiment of this application;

[0027] Figure 4 A split view of another pouch battery pack packaging structure provided in this application embodiment;

[0028] Figure 5 This is a split schematic diagram of the packaging structure of another soft-pack battery pack provided in an embodiment of this application. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0030] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0032] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] The waterproof performance of a pouch battery pack mainly refers to the waterproof performance of its tabs.

[0034] This application provides a packaging structure for a pouch battery pack. Wherein:

[0035] like Figure 1 As shown, the soft-pack battery pack 100 has a sealing edge 101 on its first end face. The orthographic projection of the sealing edge 101 on the first end face is within the range of the first end face. The sealing edge 101 has a tab 102 on it. The orthographic projection of the tab 102 on the sealing edge 101 is within the surface range of the sealing edge 101.

[0036] Based on the aforementioned pouch battery pack 100, such as Figure 2 As shown, the packaging structure of the pouch battery pack 100 may include: a support structure 201, at least one injection hole 202, and potting compound (not shown in the figure). Wherein:

[0037] The support structure 201 may include a cavity. The cavity is used to house the pouch battery pack 100, and when the pouch battery pack 100 is placed in the cavity, the first end face of the pouch battery pack 100 is opposite to the bottom surface of the support structure 201.

[0038] At least one injection hole 202 is provided on the side wall of the support structure 201 to connect the cavity to the outside. The number of injection holes 202 can be set according to requirements. The shape of the injection hole 202 can be circular or square, etc., and this embodiment does not impose any special limitation on it.

[0039] For each injection hole 202, the lower edge of the injection hole 202 is located within a preset area on the side wall of the support structure 201. The preset area is the region defined by the orthographic projection of the first end face on the side wall and the orthographic projection of the plane containing the interface between the sealing edge and the tab on the side wall. The lower edge of the injection hole 202 is the edge of the injection hole closest to the bottom surface of the support structure 201.

[0040] The potting compound is filled through at least one injection hole 202 into the gap between the plane of the lower edge of the injection hole 202 and the bottom surface of the support structure 201.

[0041] For this encapsulation structure, after the soft-pack battery pack 100 is placed in the cavity, potting compound can be filled into the gap between the plane where the lower edge of the potting hole 202 is located and the bottom surface of the support structure 201 through at least one potting hole 202. After the gap is fully filled with potting compound, the potting is stopped, and the encapsulation is completed after the potting compound solidifies.

[0042] As shown above, the first end face of the pouch battery pack 100 is provided with a sealing edge 101, the orthographic projection of which is within the range of the first end face. A tab 102 is also provided on the sealing edge 101, the orthographic projection of which is within the surface range of the sealing edge 101. In other words, viewed from the first end face to the tab 102, due to the range of their orthographic projections, the space occupied by the sealing edge 101 and the tab 102 decreases sequentially.

[0043] Thus, when the pouch battery pack 100 is placed inside the cavity of the support structure 201, since the first end face of the pouch battery pack 100 is opposite to the bottom surface of the support structure 201, the gaps in the space defined by the plane where the first end face is located, the bottom surface of the support structure 201, and the side wall of the support structure 201 increase sequentially when viewed from the direction from the first end face to the bottom surface of the support structure 201.

[0044] Furthermore, at least one injection hole 202 is provided on the side wall of the support structure 201 to connect the cavity and the outside. The lower edge of the injection hole 202 is located within a predetermined area of ​​the side wall of the support structure 201. This predetermined area is defined by the orthographic projection of the first end face on the side wall and the orthographic projection of the plane containing the interface between the sealing edge 101 and the tab 102 on the side wall. Therefore, when the soft-pack battery pack 100 is placed in the cavity of the support structure 201, the injection hole 202 is connected to the gap in the space defined by the plane containing the first end face, the bottom surface of the support structure 201, and the side wall, and the injection hole 202 is located above the projection of the plane containing the interface on the side wall.

[0045] In this way, the potting compound can be filled into the gap between the plane containing the lower edge of the potting hole 202 and the bottom surface of the support structure 201 through at least one potting hole 202. Since the tab 102 is located within the area defined by the plane containing the lower edge of the potting hole 202 and the bottom surface of the support structure 201, the potting compound can seal the tab 102, thus providing waterproofing and dustproofing.

[0046] Furthermore, compared to the waterproofing method of coating a protective film on the surface, the potting compound fills the gap between the plane where the lower edge of the injection hole 202 is located and the bottom surface of the support structure 201, making the potting compound adhere more tightly to the surface of the tab 102, thus improving the sealing, waterproofing and dustproofing.

[0047] Furthermore, since the lower edge of the injection hole 202 is located within a predetermined area on the side wall of the support structure 201, which is defined by the orthographic projection of the first end face onto the side wall and the orthographic projection of the plane containing the interface between the sealing edge 101 and the tab 102 onto the side wall, filling the potting compound through the injection hole 202 restricts the filling area of ​​the potting compound to the area defined by the bottom surface of the support structure 201 and the plane containing the lower edge of the injection hole 202. This reduces the contact area between the potting compound and the pouch battery pack 100 while ensuring sealing, waterproofing, and dustproofing. Thus, when a portion of the batteries in the pouch battery pack 100 needs repair, the difficulty of peeling the pouch battery pack 100 from the potting compound is reduced, improving repair performance.

[0048] Furthermore, since the packaging structure includes a support structure 201, at least one injection hole 202, and potting compound, wherein the support structure 201 includes a cavity, the packaging structure is simple, reducing processing difficulty and cost.

[0049] It should be noted that since the edge seal 101 is soft, its influence on the flow of the potting compound during the filling process is insufficient to affect the adequacy of the potting compound filling.

[0050] This application embodiment also provides a packaging structure for a soft-pack battery pack 100, which is similar to... Figure 2 The difference in the encapsulation structure is that this encapsulation structure may also include: a first buffer layer and a second buffer layer. Wherein:

[0051] A first buffer layer covers the second end face of the pouch battery pack 100, the second end face being opposite to the first end face. A second buffer layer covers the side area of ​​the pouch battery pack 100. The side area is the side portion of the pouch battery pack 100 defined from the first end face to the second end face.

[0052] The first and second buffer layers can be made of silicone or other elastic materials.

[0053] The encapsulation structure provided in this application embodiment also includes a first buffer layer and a second buffer layer, thus achieving shock resistance.

[0054] In some embodiments, at least one of the first and second buffer layers may be a thermally conductive buffer layer to improve heat dissipation performance and thermal balance performance.

[0055] like Figure 2 As shown, in some embodiments, the specific structure of the support structure 201 may be as follows:

[0056] The support structure 201 may include a bottom surface 2010 and a side wall, the side wall being disposed on the bottom surface 2010 to form a cavity.

[0057] Specifically, the sidewalls may include: a first sidewall 2011, a second sidewall 2012, a third sidewall 2013, and a fourth sidewall 2014.

[0058] in:

[0059] The first sidewall 2011 is perpendicularly connected to the bottom surface 2010. The size of the first sidewall 2011 matches the size of the third end face of the soft-pack battery pack 100. The third end face of the soft-pack battery pack 100 is opposite to the first sidewall 2011.

[0060] The second sidewall 2012 is a right-angled bent structure. The second sidewall 2012 includes a first right-angled side and a second right-angled side. That is, the second sidewall 2012 can be composed of two mutually perpendicular sides. The first right-angled side is perpendicularly connected to the bottom surface 2010, and the second right-angled side is perpendicularly connected to the first sidewall 2011.

[0061] The third sidewall 2013 is a right-angled bent structure. The third sidewall 2013 includes a third right-angled side and a fourth right-angled side. That is to say, the third sidewall 2013 can be composed of two mutually perpendicular sides. The third right-angled side is perpendicularly connected to the bottom surface 2010 and is opposite to the first right-angled side. The fourth right-angled side is perpendicularly connected to the first sidewall 2011 and is opposite to the second right-angled side.

[0062] The fourth sidewall 2014 is perpendicularly connected to the bottom surface 2010, the first right-angled side and the third right-angled side, and the fourth sidewall 2014 is opposite to the first sidewall 2011.

[0063] In a first direction, the fourth sidewall 2014 covers a portion of the fourth end face of the pouch battery pack 100, the fourth end face of the pouch battery pack 100 is opposite to the fourth sidewall 2014, and the first direction is a direction perpendicular to the bottom surface 2010.

[0064] Clearly, in this structure, the cavity formed by the bottom surface 2010 and the sidewalls is a non-closed cavity.

[0065] In some embodiments, based on Figure 2 The support structure 201 shown is as follows: Figure 3 As shown, the encapsulation structure may further include: a third buffer layer 301 and a fourth buffer layer 302. Wherein:

[0066] The third buffer layer 301 is disposed between the first sidewall 2011 and the third end face, and covers the area of ​​the third end face located between the first end face and the second end face, the second end face being the end face of the soft-pack battery pack 100 opposite to the first end face.

[0067] The fourth buffer layer 302 covers the area of ​​the pouch battery pack 100 that is not covered by the second sidewall 2012, the third sidewall 2013 and the fourth sidewall 2014, except for the first end face and the third end face.

[0068] The third buffer layer 301 and the fourth buffer layer 302 can be silicone or other elastic materials.

[0069] Since the encapsulation structure also includes a third buffer layer 301 and a fourth buffer layer 302, it can also achieve shock resistance.

[0070] In some embodiments, at least one of the third buffer layer 301 and the fourth buffer layer 302 is a thermally conductive buffer layer to improve heat dissipation performance and thermal balance performance.

[0071] This application embodiment also provides a packaging structure for a pouch battery pack. The difference between this packaging structure and the one described above is that the packaging structure in this embodiment may further include a protective plate. An interface and multiple positioning posts are also provided on the side wall of the support structure 201 away from the pouch battery pack 100. Wherein:

[0072] The interface is connected to the tabs of the pouch battery pack 100 to lead the tabs of the pouch battery pack 100 to the side wall of the support structure 201.

[0073] When the protective plate is positioned at the location defined by multiple positioning posts, the pads of the protective plate correspond to the interfaces. This allows installers to quickly install the protective plate onto the side wall according to the multiple positioning posts, ensuring that the pads of the protective plate correspond to the interfaces, thus facilitating subsequent automated soldering.

[0074] It should be noted that the positions of the multiple positioning posts are related to the positions of the interfaces and the pads on the protection board.

[0075] In addition, the protective plate can be fixed to the side wall of the support structure 201 by screws or other fixing structures to improve the firmness of the protective plate on the side wall of the support structure 201.

[0076] In addition, the protection board can detect information such as the working status of the pouch battery pack 100 and make corresponding control operations based on the information to ensure the stability, safety and reliability of the pouch battery pack 100.

[0077] For example, with Figure 3 Taking the supporting structure 201 in the example, as Figure 4 As shown, a plurality of positioning posts 401 and interfaces are disposed on the side of the first sidewall 2011 away from the soft-pack battery pack 100, and a protection plate 402 is disposed on the side of the first sidewall 2011 away from the soft-pack battery pack 100 based on the plurality of positioning posts 401.

[0078] This application embodiment also provides a packaging structure for a soft-pack battery pack, which differs from the packaging structure described above in that it may further include a fifth buffer layer.

[0079] The fifth buffer layer may be disposed between at least one pair of adjacent cells in the pouch cell 100.

[0080] For example, a fifth buffer layer is provided between each pair of adjacent cells in the pouch battery pack 100. Alternatively, a fifth buffer layer is provided between a portion of the adjacent cells in the pouch battery pack 100.

[0081] The fifth buffer layer can be made of elastic materials such as silicone.

[0082] Obviously, by setting a fifth buffer layer, a shock-absorbing layer can be formed between at least a pair of adjacent cells in the pouch battery pack 100 to improve the shock resistance of the packaging structure.

[0083] For example, the fifth buffer layer may be a thermally conductive buffer layer to improve the heat dissipation performance and thermal balance performance of the packaging structure.

[0084] like Figure 5 As shown in the figure, this application embodiment also provides a packaging structure for a soft-pack battery pack, including: an upper cover 501, a lower cover 502, and any of the above-mentioned packaging structures 503. Wherein: the upper cover 501 and the lower cover 502 together form a cavity, and any of the above-mentioned packaging structures 503 is placed in the cavity.

[0085] The upper cover 501 and the lower cover 502 can protect any of the above-mentioned packaging structures 503, improve the ability of the packaging structure 503 to resist external impacts, and at the same time, also play a certain role in waterproofing, sealing and dustproofing.

[0086] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A packaging structure for a pouch battery pack, wherein a sealing edge is provided on a first end face of the pouch battery pack, the orthographic projection of the sealing edge on the first end face is within the range of the first end face, and a tab is provided on the sealing edge, the orthographic projection of the tab on the sealing edge being within the surface range of the sealing edge, characterized in that, include: Supporting structure, including cavities; The cavity is used to house the pouch battery pack, and when the pouch battery pack is placed in the cavity, the first end face of the pouch battery pack is opposite to the bottom surface of the support structure. At least one injection hole is provided on the side wall of the support structure to connect the cavity to the outside; Wherein, the lower edge of the injection hole is located within a preset area of ​​the side wall of the support structure, and the preset area is the area defined by the orthographic projection of the first end face on the side wall and the plane containing the interface of the sealing edge and the tab on the side wall. The potting compound is filled through the at least one injection hole into the gap between the plane containing the lower edge of the injection hole and the bottom surface of the support structure.

2. The packaging structure according to claim 1, characterized in that, The packaging structure further includes: A first buffer layer covers the second end face of the soft-pack battery pack, the second end face being opposite to the first end face; The second buffer layer covers the side area of ​​the pouch battery pack. The side region is the side defined by the first end face to the second end face of the pouch battery pack.

3. The packaging structure according to claim 2, characterized in that, At least one of the first buffer layer and the second buffer layer is a thermally conductive buffer layer.

4. The packaging structure according to claim 1, characterized in that, The support structure includes the bottom surface and the side wall, with the side wall disposed on the bottom surface to form the cavity; The sidewall includes: A first sidewall is perpendicularly connected to the bottom surface, and the size of the first sidewall matches the size of the third end face of the soft-pack battery pack, with the third end face of the soft-pack battery pack opposite to the first sidewall. The second sidewall is a right-angled bend structure, including a first right-angled side and a second right-angled side. The first right-angled side is perpendicularly connected to the bottom surface, and the second right-angled side is perpendicularly connected to the first sidewall. The third sidewall is a right-angled bend structure, including a third right-angled side and a fourth right-angled side. The third right-angled side is perpendicularly connected to the bottom surface and opposite to the first right-angled side, and the fourth right-angled side is perpendicularly connected to the first sidewall and opposite to the second right-angled side. The fourth sidewall is perpendicularly connected to the bottom surface, the first right-angled side, and the third right-angled side, and is opposite to the first sidewall; In a first direction, the fourth sidewall covers a portion of the fourth end face of the pouch battery pack, the fourth end face of the pouch battery pack being opposite to the fourth sidewall, and the first direction being a direction perpendicular to the bottom surface.

5. The packaging structure according to claim 4, characterized in that, The packaging structure further includes: A third buffer layer is disposed between the first sidewall and the third end face, and covers the area of ​​the third end face located between the first end face and the second end face, wherein the second end face is the end face of the soft-pack battery pack that is opposite to the first end face. A fourth buffer layer covers the area of ​​the pouch battery pack that is not covered by the second sidewall, the third sidewall, and the fourth sidewall, excluding the first end face and the third end face.

6. The packaging structure according to claim 5, characterized in that, At least one of the third and fourth buffer layers is a thermally conductive buffer layer.

7. The packaging structure according to any one of claims 1 to 6, characterized in that, The packaging structure also includes a protective plate; An interface and multiple positioning posts are also provided on the side wall of the support structure away from the soft-pack battery pack; wherein: The interface is connected to the tabs of the pouch battery pack; When the protection plate is positioned at the location defined by the plurality of positioning posts, the pads of the protection plate correspond to the interface.

8. The packaging structure according to any one of claims 1 to 6, characterized in that, The packaging structure further includes: A fifth buffer layer is disposed between at least one pair of adjacent batteries in the pouch battery pack.

9. The packaging structure according to claim 8, characterized in that, The fifth buffer layer is a thermally conductive buffer layer.

10. A packaging structure for a pouch battery pack, characterized in that, include: The upper cover, the lower cover, and the packaging structure according to any one of claims 1 to 9; wherein: The upper cover and the lower cover together form a cavity, and the encapsulation structure according to any one of claims 1 to 9 is placed in the cavity.

Images