Battery pack structure

Abstract

The utility model provides a battery pack structure, relates to the technical field of battery equipment, and aims at optimizing the battery pack structure to a certain extent and reducing the size of the whole structure on the basis of ensuring the sealing performance and the cruising ability of a battery pack. The utility model provides a battery pack structure. The battery pack structure comprises a shell assembly, a battery cell assembly and a sealing cover assembly, the shell assembly comprises a main shell and a bottom shell, a first opening part and a second opening part are formed in the two ends of the main shell respectively, the bottom shell corresponds to the first opening part and is embedded into the first opening part, and the edge of the bottom shell and the inner wall of the first opening part are attached and fixedly connected or the first opening part is covered with the bottom shell in a sealed mode. The bottom shell is attached to the end face of the main shell, and the bottom shell and the main shell are fixedly connected. The battery core assembly is arranged in the main shell, and the sealing cover assembly covers the second opening part in a sealing manner and is connected with the main shell in a sealing manner.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pack structure. Background Art

[0002] With the development of new energy vehicles, people's requirements for batteries in new energy vehicles are not limited to battery life and safety, but also require that the size be reduced as much as possible within a limited space while ensuring battery life.

[0003] At present, both the bottom shell and the middle shell of the battery need to be sealed and connected. The existing sealing connection between the bottom shell and the middle shell mostly adopts a method of setting a seal between the two or directly forming a sealing boss on the bottom shell so that the sealing boss is embedded in the space of the middle shell to achieve sealing between the two.

[0004] However, the above two methods not only fail to reduce the assembly size of the bottom shell and the middle shell, but also occupy the space inside the middle shell to ensure the battery life, resulting in the overall size of the battery pack cannot be reduced.

[0005] Therefore, there is an urgent need to provide a battery pack structure to solve the problems existing in the prior art to a certain extent. Utility Model Content

[0006] The purpose of the utility model is to provide a battery pack structure, so as to optimize the battery pack structure to a certain extent, reduce the size of the overall structure on the basis of ensuring the sealing performance and endurance of the battery pack.

[0007] The utility model provides a battery pack structure, including a shell assembly, a battery cell assembly and a cover assembly; the shell assembly includes a main shell and a bottom shell, the two ends of the main shell are respectively formed with a first open portion and a second open portion, the bottom shell is arranged corresponding to the first open portion, and the bottom shell is embedded in the first open portion, the edge of the bottom shell is affixed to and fixedly connected to the inner wall of the first open portion or the bottom shell is sealed to the first open portion, and the bottom shell is affixed to the end face of the main shell, and the bottom shell is fixedly connected to the main shell; the battery cell assembly is arranged in the main shell, and the cover assembly is sealed at the second open portion and is sealed to the main shell.

[0008] Wherein, when the bottom shell is embedded in the first open portion, a first guide slope is formed at an edge of the first open portion, and a second guide slope is formed at an edge of the bottom shell.

[0009] Specifically, the battery pack structure provided by the utility model also includes a positioning assembly, which includes a positioning shell, which is arranged in the main shell, and a first guide portion is formed on the inner wall surface of the main shell, and a second guide portion is formed on the positioning shell corresponding to the position of the first guide portion, and the second guide portion cooperates with the first guide portion so that the positioning shell can slide into the main shell along the first guide portion in a direction close to the bottom shell.

[0010] Furthermore, a first adhesive layer is provided between the positioning shell and the bottom shell.

[0011] Wherein, the positioning assembly further includes a potting glue, and the potting glue is located between the battery cell assembly and the positioning shell and between the battery cell assembly and the main shell.

[0012] Specifically, a glue injection port is formed on one side of the positioning shell, and a glue outlet is formed on the other side. A guide portion is formed on the positioning shell and located between the glue injection port and the glue outlet to guide the potting glue from the glue injection port to the glue outlet.

[0013] Specifically, a partition is provided in the main shell, and the partition divides the main shell into a plurality of bearing cavities. The battery cell assembly includes a plurality of battery cells, and the battery cells are arranged in a one-to-one correspondence with the bearing cavities.

[0014] Furthermore, the positioning assembly also includes a collecting component, which is arranged between one end of the battery cell away from the positioning shell and the cover assembly, and the collecting component is formed with a pole lug positioning portion, which corresponds to the pole lug of the battery cell and is used to position the pole lug.

[0015] Furthermore, the battery pack structure provided by the utility model also includes a heat-conducting component, the heat-conducting component includes a heating film, the heating film covers the side wall surface of the battery core, and a second adhesive layer is formed between the battery core and the heating film.

[0016] Furthermore, the sealing assembly includes a protective plate and an insulating cover plate, both of which are connected to the main shell, and the protective plate is located between the collecting member and the insulating cover plate, and the insulating cover plate seals the second opening portion.

[0017] Compared with the prior art, the battery pack structure provided by the utility model has the following advantages:

[0018] The battery pack structure provided by the utility model comprises a shell assembly, a battery cell assembly and a cover assembly; the shell assembly comprises a main shell and a bottom shell, the two ends of the main shell are respectively formed with a first open portion and a second open portion, the bottom shell is arranged corresponding to the first open portion, and the bottom shell is embedded in the first open portion, the edge of the bottom shell is affixed to and fixedly connected to the inner wall of the first open portion or the bottom shell is sealed to the first open portion, and the bottom shell is affixed to the end face of the main shell, and the bottom shell and the main shell are fixedly connected; the battery cell assembly is arranged in the main shell, and the cover assembly is sealed at the second open portion and is sealed to the main shell.

[0019] From this analysis, it can be seen that a bearing cavity for carrying the battery cell assembly can be formed by the main shell and the bottom shell correspondingly arranged in the first open portion, and by embedding the bottom shell in the present application in the first open portion and making a sealed connection between the bottom shell and the main shell, there is no need to further add sealing parts or form sealing bosses or other sealing structures on the bottom shell. Therefore, on the basis of ensuring the sealing performance, the thickness of the bottom shell can be reduced to a certain extent, or the overall size of the shell assembly formed by assembling the bottom shell and the main shell after removing the sealing parts can be reduced, and the space occupied by the bottom shell in the main shell is reduced, thereby increasing the volume of the formed bearing cavity.

[0020] Correspondingly, by covering the second open portion and sealingly connecting the cover assembly to the main shell, the bearing cavity can be sealed, thereby ensuring the bearing of the battery cell assembly.

[0021] The connection between the bottom shell and the main shell in the present application can also allow the bottom shell to be sealed at the first opening portion, and the end faces of the bottom shell and the main shell corresponding to one end of the first opening portion to fit together, so that a sealed connection between the bottom shell and the main shell can be achieved by welding the connection between the bottom shell and the edge of the main shell.

[0022] It can be understood that when the bottom shell is embedded in the first opening part, the size of the bottom shell is adapted to the size of the inner ring of the first opening part, so that after the bottom shell is embedded in the first opening part, it can form a unified plane with the end of the main shell. In this way, the welding position of the bottom shell and the main shell is where the edge of the bottom shell fits with the inner ring of the first opening part.

[0023] When the bottom shell is sealed on the first open part, the size of the bottom shell is the same as that of the main shell. For example, if the cross-sections of the bottom shell and the main shell are both rectangular structures, the size of the bottom shell is the same as that of the main shell, which means that the side lengths of the bottom shell correspond to the side lengths of the main shell and are the same in size, so that after the bottom shell is sealed on the first open part, the side wall of the bottom shell can be coplanar with the side wall of the main shell. Accordingly, in this method, the connection position between the bottom shell and the main shell is located at the connection between the side walls of the bottom shell and the main shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the exploded structure of a battery pack structure from a first viewing angle provided by an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the exploded structure of the battery pack structure provided by an embodiment of the utility model from a second viewing angle;

[0027] Figure 3 A schematic structural diagram of a positioning shell in a battery pack structure provided in an embodiment of the utility model.

[0028] In the figure: 1-main shell; 101-first guide part; 102-partition; 2-bottom shell; 3-cell assembly; 4-positioning shell; 401-second guide part; 402-glue injection port; 403-glue outlet; 404-first guide protrusion; 405-second guide protrusion; 406-third guide protrusion; 5-potting glue; 6-collecting component; 7-protective plate; 8-insulating cover plate. DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0030] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0034] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0035] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0036] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0037] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0038] like Figure 1-Figure 3 As shown, the utility model provides a battery pack structure, including a shell assembly, a battery cell assembly 3 and a cover assembly; the shell assembly includes a main shell 1 and a bottom shell 2, the two ends of the main shell 1 are respectively formed with a first open portion and a second open portion, the bottom shell 2 is arranged corresponding to the first open portion, and the bottom shell 2 is embedded in the first open portion, the edge of the bottom shell 2 is fitted with the inner wall of the first open portion, and preferably, the bottom shell 2 is fixedly connected or covered on the first open portion by welding, and the bottom shell 2 is fitted with the end face of the main shell 1, and the bottom shell 2 and the main shell 1 are also fixedly connected by welding; the battery cell assembly 3 is arranged in the main shell 1, and the cover assembly is covered at the second open portion.

[0039] Compared with the prior art, the battery pack structure provided by the utility model has the following advantages:

[0040] The battery pack structure provided by the utility model can form a bearing cavity for bearing the battery cell assembly 3 through the main shell 1 and the bottom shell 2 correspondingly arranged at the first open part, and by embedding the bottom shell 2 in the present application into the first open part and realizing the sealed connection between the bottom shell 2 and the main shell 1 by welding, there is no need to further add sealing parts or form sealing bosses and other sealing structures on the bottom shell 2. Therefore, on the basis of ensuring the sealing performance, the thickness of the bottom shell 2 can be reduced to a certain extent, or the overall size of the shell assembly formed by assembling the bottom shell 2 and the main shell 1 after removing the sealing parts can be reduced, and the space occupied by the bottom shell 2 in the main shell 1 can be reduced, thereby increasing the volume of the formed bearing cavity.

[0041] Correspondingly, by covering the second open portion and sealingly connecting the cover assembly to the main shell 1 , the bearing cavity can be sealed, thereby ensuring the bearing of the battery cell assembly 3 .

[0042] The connection between the bottom shell 2 and the main shell 1 in the present application can also make the bottom shell 2 cover the first open portion, and make the end surface of the bottom shell 2 and the main shell 1 corresponding to one end of the first open portion fit together, so that the sealing connection between the bottom shell 2 and the main shell 1 can be achieved by welding the connection between the bottom shell 2 and the edge of the main shell 1.

[0043] It can be understood that when the bottom shell 2 is embedded in the first opening part, the size of the bottom shell 2 is adapted to the inner ring size of the first opening part, so that after the bottom shell 2 is embedded in the first opening part, it can form a unified plane with the end of the main shell 1. In this way, the welding position of the bottom shell 2 and the main shell 1 is where the edge of the bottom shell 2 fits with the inner ring of the first opening part.

[0044] When the bottom shell 2 is sealed on the first open portion, the size of the bottom shell 2 is the same as that of the main shell 1. For example, if the cross-sections of the bottom shell 2 and the main shell 1 are both rectangular structures, the size of the bottom shell 2 is the same as that of the main shell 1, which means that the side lengths of the bottom shell 2 correspond to the side lengths of the main shell 1 and are the same size, so that after the bottom shell 2 is sealed on the first open portion, the side wall of the bottom shell 2 can be coplanar with the side wall of the main shell 1. Accordingly, in this method, the welding position of the bottom shell 2 and the main shell 1 is located at the connection between the side walls of the bottom shell 2 and the main shell 1.

[0045] It should be noted here that when the bottom shell 2 is embedded in the first opening portion, the connection between the bottom shell 2 and the main shell 1 can be achieved by laser welding or other methods, and when the bottom shell 2 is sealed on the first opening portion, stir friction welding can be directly used to achieve the connection between the bottom shell 2 and the main shell 1.

[0046] Preferably, when the bottom shell 2 is embedded in the first open portion, a first guide slope is formed at the edge of the first open portion, and a second guide slope is formed at the edge of the bottom shell 2.

[0047] The formed first guide slope and the second guide slope can make the bottom shell 2 more smoothly inserted into the first open portion, and more stable after being inserted into the first open portion. Accordingly, the sealing performance is also better.

[0048] Alternatively, if Figure 1 Combination Figure 2 As shown, the battery pack structure provided by the present application also includes a positioning assembly, which includes a positioning shell 4, which is arranged in the main shell 1, and a first guide portion 101 is formed on the inner wall surface of the main shell 1, and a second guide portion 401 is formed at a position of the positioning shell 4 corresponding to the first guide portion 101, and the second guide portion 401 cooperates with the first guide portion 101 so that the positioning shell 4 can slide into the main shell 1 along the first guide portion 101 in a direction close to the bottom shell 2.

[0049] The battery cell assembly 3 can be positioned through the positioning shell 4, and the first guide portion 101 formed on the inner wall of the main shell 1 and the second guide portion 401 formed on the positioning shell 4 at the position corresponding to the first guide portion 101 can enable the positioning shell 4 to accurately slide into the main shell 1 in the direction close to the bottom shell 2, thereby reducing the difficulty of assembly to a certain extent and avoiding damage to the battery cell assembly 3 during assembly.

[0050] Preferably, the first guide portion 101 in the present application is a protrusion protruding from the inner wall surface of the main shell 1, and correspondingly, the second guide portion 401 is a groove adapted to the protrusion, so that the guiding effect on the positioning shell 4 can be achieved through the cooperation of the groove and the protrusion.

[0051] It can be understood that the protrusions and grooves in the present application can be interchangeable, that is, the first guide portion 101 is a groove, and the second guide portion 401 is a protrusion, but because the protrusion is formed on the inner wall of the main shell 1, it can strengthen the main shell 1. Therefore, in the present application, the first guide portion 101 is preferably a protrusion.

[0052] Optionally, a first adhesive layer is provided between the positioning shell 4 and the bottom shell 2 in the present application. By providing the first adhesive layer between the positioning shell 4 and the bottom shell 2 , a stable connection between the bottom shell 2 and the positioning shell 4 can be achieved, thereby ensuring the connection strength.

[0053] It should be noted here that the above-mentioned positioning shell 4 in the present application is made of plastic material. Accordingly, the positioning shell 4 made of plastic material can play the role of insulation protection between the bottom shell 2 and the main shell 1 and the battery cell, and can reduce the heat dissipation between the battery cell and the bottom shell 2 and the main shell 1, thereby improving the thermal insulation capacity of the battery cell.

[0054] Alternatively, if Figure 1 Combination Figure 2 As shown, the positioning assembly in the present application also includes a potting glue 5, and the potting glue 5 is located between the battery cell assembly 3 and the positioning shell 4 and between the battery cell assembly 3 and the main shell 1.

[0055] The potting glue 5 in the present application is formed between the positioning shell 4 and the battery cell assembly 3 and between the main shell 1 and the battery cell assembly 3 to ensure that the battery cell assembly 3 is stably positioned in the main shell 1 .

[0056] It can be understood that since a partition 102 is provided in the main shell 1 in the present application, and the partition 102 can separate the space in the main shell 1 into multiple carrying cavities, the battery cell assembly 3 in the present application can include multiple battery cells, and preferably, there is one partition 102 in the present application, so that the main shell 1 can be separated into two carrying cavities, and the number of battery cells is two corresponding to the carrying cavities.

[0057] Correspondingly, the potting glue 5 formed in the present application is U-shaped, that is, the two battery cells in the present application are respectively arranged in two independent bearing cavities, and the two sides of the battery cells are respectively spaced apart from the main shell 1 and the partition 102, and the bottom end is spaced apart from the positioning shell 4, so that a U-shaped potting glue 5 can be formed.

[0058] It can be understood that the potting glue 5 can protect and position the battery cell, so that the position of the battery cell in the main shell 1 remains stable, avoiding shaking that may cause damage to the battery cell or even fire and explosion.

[0059] Preferably, if Figure 3 As shown, a glue injection port 402 is formed on one side of the positioning shell 4 in the present application, and a glue outlet 403 is formed on the other side. A guide portion is formed on the positioning shell 4 and located between the glue injection port 402 and the glue outlet 403 to guide the potting glue 5 from the glue injection port 402 to the glue outlet 403.

[0060] Since the battery cell and the positioning shell 4 need to be separated and positioned by potting glue, the guide portion formed on the positioning shell 4 and located between the injection port 402 and the outlet port 403 can quickly guide the potting glue 5 from the injection port 402 to the outlet port 403, thereby avoiding the problem of the potting glue 5 being deposited at the bottom of the positioning shell 4.

[0061] And as Figure 3 As shown, the guide portion in the present application includes two first guide protrusions 404 that are spaced apart and close to one side of the glue injection port 402, two second guide protrusions 405 that are spaced apart and close to one side of the glue outlet 403, and two third guide protrusions 406 that are arranged in a bracket shape and located between the first guide protrusions 404 and the second guide protrusions 405.

[0062] The first glue passing port can be formed by the first guide protrusions 404 arranged at intervals, and correspondingly, the second glue passing port and the third glue passing port corresponding to the first glue passing port can be formed by the two third guide protrusions 406 arranged in the middle in a bracket shape, and the fourth glue passing port can be further formed by the second guide protrusions 405 arranged at intervals, so that the pouring glue can enter from the glue injection port 402, flow through the first glue passing port, the second glue passing port, the third glue passing port and the fourth glue passing port to the glue outlet 403, and then the above-mentioned U-shaped pouring glue structure can be quickly formed.

[0063] Alternatively, if Figure 1 Combination Figure 2 As shown, the positioning assembly in the present application also includes a collecting member 6, which is arranged between the end of the battery cell away from the positioning shell 4 and the cover assembly. The collecting member 6 is formed with a pole ear positioning portion, which corresponds to the pole ear of the battery cell and is used to position the pole ear.

[0064] By arranging a collecting member 6 at one end of the battery cell away from the positioning shell 4 , the tabs of the battery cell can be integrated together, so that the connection and positioning of the tabs are more regular.

[0065] Optionally, the battery pack structure provided in the present application further includes a heat-conducting component, the heat-conducting component includes a heating film, the heating film covers the side wall surface of the battery cell, and a second adhesive layer is formed between the battery cell and the heating film.

[0066] The heating film in the present application achieves a stable connection with the side wall surface of the battery cell through the second adhesive layer, and the heating film can ensure the heating performance of the entire battery pack, thereby ensuring the stability of the operation and use of the battery pack.

[0067] Alternatively, if Figure 1 Combination Figure 2 As shown, the sealing assembly in the present application includes a protective plate 7 and an insulating cover plate 8, both of which are connected to the main shell 1, and the protective plate 7 is located between the collecting member 6 and the insulating cover plate 8, and the insulating cover plate 8 seals the second open portion.

[0068] The protective plate 7 in the present application can be made of fireproof materials such as phlogopite, so as to achieve thermal isolation from the electrical compartment of the battery management system. The insulating cover plate 8 covering the second open part can achieve insulation isolation from the electrical compartment of the battery management system, thereby ensuring that the overall battery pack structure is safer and more reliable.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack structure, characterized in that: It includes a shell assembly, a battery cell assembly and a cover assembly; The housing assembly includes a main shell and a bottom shell, the two ends of the main shell are respectively formed with a first open portion and a second open portion, the bottom shell is arranged corresponding to the first open portion, and the bottom shell is embedded in the first open portion, the edge of the bottom shell is attached to and fixedly connected with the inner wall of the first open portion or the bottom shell is sealed to the first open portion, and the bottom shell is attached to the end surface of the main shell, and the bottom shell is fixedly connected to the main shell; The battery cell assembly is arranged in the main shell, and the cover assembly covers the second open portion and is sealed and connected to the main shell.

2. The battery pack structure according to claim 1, characterized in that: When the bottom shell is embedded in the first open portion, a first guide slope is formed at an edge of the first open portion, and a second guide slope is formed at an edge of the bottom shell.

3. The battery pack structure according to claim 2, characterized in that: It also includes a positioning component, which includes a positioning shell, which is arranged in the main shell, and a first guide portion is formed on the inner wall surface of the main shell, and a second guide portion is formed on the positioning shell corresponding to the position of the first guide portion, and the second guide portion cooperates with the first guide portion so that the positioning shell can slide into the main shell along the first guide portion in a direction close to the bottom shell.

4. The battery pack structure according to claim 3, characterized in that: A first adhesive layer is provided between the positioning shell and the bottom shell.

5. The battery pack structure according to claim 3, characterized in that: The positioning assembly further includes a potting compound, and the potting compound is located between the battery cell assembly and the positioning shell and between the battery cell assembly and the main shell.

6. The battery pack structure according to claim 5, characterized in that: A glue injection port is formed on one side of the positioning shell, and a glue outlet is formed on the other side. A guide portion is formed on the positioning shell and located between the glue injection port and the glue outlet to guide the potting glue from the glue injection port to the glue outlet.

7. The battery pack structure according to claim 5, characterized in that: A partition is provided in the main shell, and the partition divides the main shell into a plurality of bearing cavities. The battery cell assembly includes a plurality of battery cells, and the battery cells are arranged in a one-to-one correspondence with the bearing cavities.

8. The battery pack structure according to claim 7, characterized in that: The positioning assembly also includes a collecting component, which is arranged between one end of the battery cell away from the positioning shell and the cover assembly. The collecting component is formed with a pole lug positioning portion, which corresponds to the pole lug of the battery cell and is used to position the pole lug.

9. The battery pack structure according to claim 7, characterized in that: It also includes a heat-conducting component, which includes a heating film. The heating film covers the side wall surface of the battery core, and a second adhesive layer is formed between the battery core and the heating film.

10. The battery pack structure according to claim 8, characterized in that: The sealing assembly includes a protective plate and an insulating cover plate, both of which are connected to the main shell, and the protective plate is located between the collecting member and the insulating cover plate, and the insulating cover plate seals the second opening portion.

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