A sealing profile, a battery box and a battery pack

Abstract

This utility model relates to the field of energy storage technology, specifically disclosing a sealing profile, a battery box, and a battery pack, comprising: a profile body, the profile body including a hollow inner cavity located inside the profile body and extending along the length direction of the profile body, and a plurality of component mounting holes penetrating the profile body and communicating with the hollow inner cavity along the thickness direction of the profile body; and a plurality of sealing components corresponding one-to-one with each of the component mounting holes, the sealing components being located at the junction of the hollow inner cavity and the corresponding component mounting hole, used to prevent foreign objects in the hollow inner cavity from entering the component mounting hole through the junction. The sealing profile, battery box, and battery pack provided by this utility model can effectively solve the problem of metal debris inside the profile easily entering the battery box.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a sealing profile, a battery box, and a battery pack. Background Technology

[0002] With the rapid development of new energy vehicles, the safety and reliability of power batteries, as core components, have attracted much attention. The battery casing, as the load-bearing structure of the battery module, is typically made of lightweight, high-strength aluminum profiles. These aluminum profiles are usually hollow, a design that reduces weight while facilitating internal wiring and heat dissipation.

[0003] During the manufacturing process of battery packs, component mounting holes and fastening holes need to be made on the battery housing for fixing battery components such as connectors and explosion-proof valves. Specifically, the battery components are usually installed in the following way: the battery components are inserted into the component mounting holes, and then the battery components are locked into the fastening holes with fasteners such as bolts or rivets.

[0004] During drilling or tapping, metal debris (aluminum shavings from the aluminum profile and iron filings from the drill bit, etc.) falls into the hollow cavity of the aluminum profile. Due to the complex internal space of the hollow cavity, the debris is difficult to clean completely. When the vehicle is in motion, bumps and vibrations can cause metal debris to fall from the component mounting holes and enter the battery box. If the metal debris comes into contact with high-voltage electrical components such as battery modules, it may cause a short circuit or even serious safety hazards such as thermal runaway.

[0005] Therefore, existing battery packs need to be improved to address the problem of metal debris from inside the profiles easily entering the battery housing.

[0006] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] One objective of this invention is to provide a sealing profile, a battery box, and a battery pack that can effectively solve the problem of metal debris easily entering the battery box from inside the profile.

[0008] To achieve the above objectives, on the one hand, this utility model provides a sealing profile, comprising:

[0009] The profile body includes a hollow inner cavity located inside the profile body and extending along the length direction of the profile body, and a plurality of component mounting holes that penetrate the profile body and communicate with the hollow inner cavity along the thickness direction of the profile body.

[0010] A plurality of sealing components are provided corresponding to each of the component mounting holes. The sealing components are located at the junction of the hollow inner cavity and the corresponding component mounting hole, and are used to prevent foreign objects in the hollow inner cavity from entering the component mounting hole through the junction.

[0011] Optionally, the sealing component is a flexible prefabricated part that is interference-fitted with the inner wall of the junction.

[0012] Optionally, the sealing component is a rigid prefabricated part that is snapped together with the junction.

[0013] Optionally, the sealing component is a non-prefabricated part that is cured and formed at the junction.

[0014] Optionally, the profile body is further provided with a plurality of fastening holes communicating with the hollow inner cavity.

[0015] On the other hand, a battery box is provided, including a base plate assembly and a box outer frame fixed to the edge of the base plate assembly and surrounding to form an internal space of the box;

[0016] The outer frame of the box includes any of the sealing profiles described above.

[0017] On the other hand, a battery pack is provided, including the battery box, a plurality of battery components that are installed and fixed in the mounting holes of each of the components, and a battery module located in the space inside the box;

[0018] The battery component is installed in the component mounting hole and cooperates with the sealing component to seal the component mounting hole, thereby preventing foreign objects in the hollow cavity and / or foreign objects outside the battery box from entering the box space.

[0019] Optionally, a plurality of hollow cavities are spaced apart along the height direction of the profile body, the component mounting hole spans the plurality of hollow cavities along the height direction of the profile body, and the sealing component extends along the height direction of the profile body and abuts against the cavity wall of the hollow cavity corresponding to the top of the component mounting hole and the cavity wall of the hollow cavity corresponding to the bottom of the component mounting hole, respectively.

[0020] Optionally, the battery component includes a component base that is fixedly mounted in the component mounting hole, and a component body that is detachably mounted in the component base;

[0021] The sealing component is positioned so that the side facing the battery component engages with the side wall of the component base.

[0022] Optionally, the component base has a component mounting surface at one end away from the battery module, and the component mounting surface has a base insertion hole for plugging and unplugging connection with the component body.

[0023] Optionally, the mounting surface of the component is an inclined surface, wherein the inclined surface is arranged facing downwards.

[0024] The beneficial effects of this utility model are as follows: It provides a sealing profile, a battery box and a battery pack. When metal debris generated during drilling or tapping of the profile body falls into the hollow cavity, these sealing components will form a physical barrier at the intersection of the hollow cavity and the component mounting hole, so that the metal debris in the hollow cavity cannot enter the component mounting hole.

[0025] Therefore, the sealing profile, battery box, and battery pack provided by this utility model can effectively solve the problem that metal debris inside the profile can easily enter the battery box. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the battery pack provided in the embodiment;

[0028] Figure 2 An assembly diagram of the sealing profile and battery components provided for an embodiment;

[0029] Figure 3 for Figure 2 An explosion diagram.

[0030] In the picture:

[0031] 1. Battery box; 101. Base plate assembly; 102. Box outer frame; 1021. Box internal space; 1022. Sealing profile; 1022a. Profile body; 1022b. Component mounting hole; 1022c. Sealing component; 1022d. Fastening hole;

[0032] 2. Battery component; 201. Component base; 2011. Base insertion hole; 2012. Component mounting surface; 202. Component body. Detailed Implementation

[0033] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0035] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0036] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0037] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0038] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0039] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0040] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0041] The sealing profile, battery box, and battery pack provided by this utility model creatively solve the safety hazard of metal debris intruding into the battery box by setting a special sealing component at the intersection of the component mounting hole and the hollow inner cavity of the hollow profile.

[0042] See Figure 1 The battery pack provided in this embodiment includes a battery box 1, several battery components 2, and a battery module.

[0043] Specifically, the battery box 1 includes a base plate assembly 101 and an outer frame 102 fixed to the edge of the base plate assembly 101 and surrounding it to form an internal space 1021. The battery module is located in the internal space 1021. The outer frame 102 includes several profiles, and at least one profile is a sealing profile 1022 as described below.

[0044] See Figure 2 and Figure 3 The sealing profile 1022 provided by this utility model includes a profile body 1022a and a plurality of sealing components 1022c.

[0045] The profile body 1022a includes a hollow inner cavity located inside the profile body 1022a and extending along the length direction of the profile body 1022a, and a plurality of component mounting holes 1022b passing through the profile body 1022a and communicating with the hollow inner cavity along the thickness direction of the profile body 1022a; a battery component 2 is fixedly disposed in each of the component mounting holes 1022b.

[0046] Each sealing component 1022c is correspondingly provided with each component mounting hole 1022b. The sealing component 1022c is located at the junction of the hollow inner cavity and the corresponding component mounting hole 1022b, and is used to prevent foreign objects in the hollow inner cavity from entering the component mounting hole 1022b through the junction. In this embodiment, when metal debris generated during drilling or tapping of the profile body 1022a falls into the hollow inner cavity, these sealing components 1022c form a physical barrier at the junction of the hollow inner cavity and the component mounting hole 1022b, preventing metal debris from entering the component mounting hole 1022b. Furthermore, moisture, dust, salt spray, corrosive gases, and even liquids (such as car wash water and rainwater) from the external environment can directly enter the hollow cavity through these component mounting holes 1022b. The sealing components 1022c can effectively isolate the external environment and prevent environmental pollutants.

[0047] This design cleverly utilizes the "let it pass first, then intercept it" protection concept—dumping is allowed to fall naturally into the hollow cavity during processing, but during subsequent use, when the vibration generated by the vehicle causes the dumping to shift inside the cavity, the sealing component 1022c will firmly block the only channel through which the dumping reaches the inside of the battery.

[0048] The sealing profile 1022 provided in this embodiment adopts a distributed sealing structure corresponding to each mounting hole. This ensures that debris cannot enter the battery box through the component mounting holes 1022b in the reverse direction, and avoids the weight increase and cost increase caused by excessive sealing. Therefore, a reliable seal is achieved at the junction, ensuring the overall protection level of the battery pack, isolating external environmental pollutants and foreign objects in the hollow cavity, and also enhancing the structural strength and rigidity of the component mounting opening 1022b, preventing premature cracking or deformation of the edge of the component mounting opening 1022b under vibration, impact or compressive loads. The sealing component 1022c helps to disperse local stress.

[0049] Furthermore, the flexible or rigid material selection of the sealing component 1022c can be adapted to the thermal deformation characteristics of different types of profiles, ensuring stable sealing even under temperature variations. This precise interception design fundamentally breaks the risk chain described in the background technology of "vibration-debris shedding-intrusion into the battery cavity-short circuit," achieving a substantial improvement in battery system safety with minimal structural modifications while retaining the advantages of lightweight profiles.

[0050] Therefore, the sealing profile 1022, battery box 1 and battery pack provided by this utility model can effectively solve the problem that metal debris inside the profile can easily enter the battery box.

[0051] Accordingly, the battery box 1 uses a sealing profile 1022 as the outer frame 102, giving the entire battery box the ability to actively prevent debris intrusion. The hollow inner cavity of the outer frame 102 can serve as a debris collection area, while the sealing component 1022c ensures that metal debris cannot enter the internal space of the battery pack through the component mounting holes 1022b. This design, while maintaining the lightweight design and heat dissipation performance of the box, fundamentally solves the safety hazards caused by metal debris intrusion.

[0052] In this embodiment, multiple hollow cavities are spaced apart along the height direction of the profile body 1022a, giving the sealing profile 1022 good bending and torsional resistance. The component mounting hole 1022b spans multiple hollow cavities along the height direction of the profile body 1022a, and the sealing component 1022c extends along the height direction of the profile body 1022a, respectively abutting against the cavity wall of the hollow cavity corresponding to the top of the component mounting hole 1022b and the cavity wall of the hollow cavity corresponding to the bottom of the component mounting hole 1022b. This effectively resists various loads generated by external forces on the area near the component mounting hole 1022b, such as tensile force, compressive force, and shear force, thereby improving the load-bearing capacity and deformation resistance of the entire sealing profile 1022 in actual use, reducing stress concentration caused by the installation of the battery component 2, and reducing the risk of failure such as cracking and deformation of the sealing profile 1022. After the battery component 2 is inserted into the component mounting hole 1022b, the battery component 2 abuts against the upper and lower ends of the outer wall of the sealing component 1022c, thereby preventing the sealing component 1022c from detaching from the junction through the component mounting hole 1022b. This, in turn, cooperates with the sealing component 1022c to seal the component mounting hole 1022b, restricting foreign objects in the hollow cavity and / or from the outside of the battery box 1 from entering the internal space 1021. This prevents corrosion, rust, or damage to the internal structure of the battery pack, keeps the inside of the sealing profile 1022 dry and clean, thereby improving the durability and service life of the sealing profile 1022. It also helps maintain the structural integrity and performance stability at the component mounting hole 1022b, ensuring that the battery component 2 can work normally without interference from external environmental factors. Furthermore, it provides ample space and flexibility when installing the battery component 2. The presence of the sealing component 1022c will not cause too much obstruction to the installation of the battery component 2, while also playing a certain role in positioning and support, ensuring that the battery component 2 can be accurately and stably installed on the profile, improving installation efficiency and quality, and reducing errors and adjustment time during the installation process.

[0053] The sealing component 1022c provided in this embodiment can be a flexible prefabricated part that is interference-fitted to the inner wall of the junction. Optionally, the flexible prefabricated part can be a silicone rubber part, a fluororubber part, or a thermoplastic elastomer part that is adapted to the shape and size of the junction.

[0054] The interference fit design allows the 1022c sealing component to fit tightly into the inner cavity of the profile, maintaining good sealing performance even under vibration or temperature changes. The choice of flexible material not only facilitates installation but also avoids damage to the inner wall of the profile caused by the interference fit, while adapting to the thermal expansion characteristics of different profiles to ensure stable sealing performance under long-term use.

[0055] Alternatively, the sealing component 1022c can be a rigid prefabricated part that snaps into the junction. Optionally, the rigid prefabricated part can be an engineering plastic (such as nylon PA66, polyetheretherketone PEEK) part or a thin metal sheet that matches the shape and size of the junction. A slot can be provided near the junction, and a hook portion can be provided on the rigid prefabricated part to engage with the slot. Once the hook portion is engaged in the slot, the rigid prefabricated part can be fixed at the junction.

[0056] Through a snap-fit ​​connection design between the rigid prefabricated component and the junction, the sealing profile 1022 achieves a detachable sealing structure, facilitating future maintenance or replacement. The rigid material (such as engineering plastics or thin metal sheets) maintains structural stability under high temperature or high mechanical stress environments, preventing seal failure due to long-term pressure deformation. The snap-fit ​​connection simplifies the installation process while providing reliable fixation, ensuring that the sealing component 1022c will not loosen under vibration conditions.

[0057] Using prefabricated dedicated sealing components 1022c is more reliable, efficient, and aesthetically pleasing than on-site sealing operations such as welding and applying adhesive to the junction. At the same time, the prefabricated standardized sealing components 1022c can ensure consistent sealing and structural performance at each junction, reducing quality fluctuations caused by human operation.

[0058] Alternatively, the sealing component 1022c may be a non-prefabricated part that is cured and formed at the junction. For example, the non-prefabricated part may be a foamed part, in which foaming material is sprayed onto the junction and then foamed and formed on-site. Alternatively, the non-prefabricated part may be a room temperature vulcanizing silicone rubber (RTV silicone) part, which is in paste form during construction and can be applied or injected onto the junction, curing into an elastic sealant upon contact with air; or, the non-prefabricated part may be a UV-cured part, in which UV-curing adhesive is sprayed onto a small area of ​​the junction and then rapidly cured (tens of seconds to minutes) by ultraviolet irradiation.

[0059] Using on-site curing non-prefabricated components (such as foam materials, RTV silicone, or UV-curable adhesives) as sealing parts 1022c can perfectly fill irregular junctions and eliminate gaps between prefabricated components and the inner cavity of the profile. This solution is particularly suitable for complex structures or automated production scenarios. For example, UV-curable adhesives can complete the sealing process in tens of seconds, significantly improving production efficiency. In addition, the curing and molding of non-prefabricated components can form a sealing layer without dead corners, completely blocking the intrusion path of metal debris.

[0060] In this embodiment, the profile body 1022a is further provided with a plurality of fastening holes 1022d communicating with the hollow inner cavity. Some of the fastening holes 1022d are used to install and fix the battery component 2, and the battery component 2 is locked in the fastening holes 1022d by fasteners such as bolts or rivets. Some of the fastening holes 1022d are used to connect the cover assembly and the base plate assembly 101, etc. Sealant is applied to the fasteners such as bolts or rivets, and the sealant covers the fastener positions inside the box, so that there is no gap between the fasteners and the box, ensuring the sealing between the outside and inside of the box at the fasteners.

[0061] See Figure 3 In this embodiment, the battery component 2 includes a component base 201 fixed in the component mounting hole 1022b and a component body 202 detachably mounted in the component base 201. The component body 202 can be a component that needs to pass through the outer frame 102 of the housing, such as an explosion-proof valve or a connector; this embodiment does not limit this. The sealing component 1022c, facing the battery component 2, cooperates with the side wall of the component base 201, thereby limiting the accumulation of foreign matter in the component base 201 and the junction, effectively avoiding the risk of short circuits caused by the entry of conductive materials, and optimizing sealing performance to improve the reliability and safety of the battery pack.

[0062] Battery component 2 adopts a split design, with the component base 201 and component body 202 being detachably connected, allowing replacement of individual components without disassembling the entire battery box. Component base 201 acts as a second protective barrier, effectively preventing debris from entering the battery even if the sealing component 1022c wears down due to long-term use, thus improving the system's redundancy and safety.

[0063] Optionally, the component base 201 has a component mounting surface 2012 at the end away from the battery module, and the component mounting surface 2012 has a base insertion hole 2011 for plug-in connection with the component body 202. The component base 201 of this battery pack has a plug-in connection structure, which makes the installation and replacement of the battery component 2 more convenient, especially suitable for maintenance scenarios of closed battery boxes. The design of the base insertion hole 2011 not only improves the installation accuracy, but also prevents mis-insertion through a specific guide structure, ensuring the reliability of the electrical connection.

[0064] Optionally, the number of the base sockets 2011 can be one, two, three or more, and multiple component bodies 202 can be set on the same component base 201, which is beneficial to improve the integration of the device and reduce the drilling work on the profile.

[0065] Furthermore, the component mounting surface 2012 is a downward-facing inclined surface. The inclined arrangement of the battery pack component mounting surface 2012 allows for flexible arrangement of the battery components 2 according to space requirements, optimizing the internal space utilization of the battery pack. The inclined mounting surface design avoids the accumulation of foreign objects, reducing mechanical failures or electrical short circuits caused by foreign objects, thereby improving the reliability and safety of the battery pack. It also enables natural drainage of condensate in specific application scenarios, preventing liquid accumulation at electrical connection points and further enhancing the environmental adaptability of the battery system. In some embodiments, the component mounting surface 2012 can also be a vertical surface, a horizontal surface, etc.

[0066] Optionally, the component body 202 is an explosion-proof valve, and a sealing component 1022c is provided at the junction of the explosion-proof valve mounting hole and the hollow inner cavity to isolate the hollow cavity, block the potential propagation path of internal flames, gases and leaks, and improve the thermal safety performance of the battery pack.

[0067] In summary, the sealing profile 1022, battery box 1, and battery pack provided in this embodiment have the following advantages:

[0068] ①Active anti-debris design: The sealing component 1022c forms a physical barrier at the junction, effectively blocking metal debris from entering the component mounting hole 1022b in the hollow inner cavity, thus eliminating the risk of battery short circuit.

[0069] ② Distributed sealing structure: The sealing component 1022c, which corresponds to the installation hole, accurately intercepts debris and avoids the increase in weight and cost caused by overall sealing.

[0070] ③ Flexible spatial layout: The component mounting surface supports inclined arrangement, which optimizes space utilization and enhances environmental adaptability.

[0071] ④ High ease of maintenance: The plug-in component base 201 design simplifies the component replacement process of the enclosed battery box and improves maintenance efficiency.

[0072] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A closing profile, characterized in that include: The profile body (1022a) includes a hollow inner cavity located inside the profile body (1022a) and extending along the length direction of the profile body (1022a), and a plurality of component mounting holes (1022b) penetrating the profile body (1022a) along the thickness direction and communicating with the hollow inner cavity. A plurality of sealing components (1022c) are provided in one-to-one correspondence with each of the component mounting holes (1022b). The sealing components (1022c) are located at the junction of the hollow inner cavity and the corresponding component mounting hole (1022b) to restrict foreign objects in the hollow inner cavity from entering the component mounting hole (1022b) through the junction.

2. A closing profile according to claim 1, characterised in that The sealing component (1022c) is a flexible prefabricated part that is interference-fitted with the inner wall of the junction.

3. A closing profile according to claim 1, characterised in that The sealing component (1022c) is a rigid prefabricated part that is snapped together with the junction.

4. The sealing profile according to claim 1, characterized in that, The sealing component (1022c) is a non-prefabricated part that is cured and formed at the junction.

5. The sealing profile according to claim 1, characterized in that, The profile body (1022a) is also provided with a number of fastening holes (1022d) that connect to the hollow inner cavity.

6. A battery box, characterized in that, It includes a base plate assembly (101) and an outer frame (102) of the box fixed to the edge of the base plate assembly (101) and surrounding the box to form an internal space (1021). The outer frame (102) of the box includes the sealing profile (1022) as described in any one of claims 1-5.

7. A battery pack, characterized in that, It includes the battery box (1) as described in claim 6, a plurality of battery components (2) that are installed and fixed in the mounting holes (1022b) of each of the components, and a battery module located in the internal space (1021) of the box; The battery component (2) is installed in the component mounting hole (1022b) and cooperates with the sealing component (1022c) to seal the component mounting hole (1022b) to restrict foreign objects in the hollow cavity and / or foreign objects outside the battery box (1) from entering the box space (1021).

8. The battery pack according to claim 7, characterized in that, Multiple hollow cavities are spaced apart along the height direction of the profile body (1022a). The component mounting hole (1022b) spans multiple hollow cavities along the height direction of the profile body (1022a). The sealing component (1022c) extends along the height direction of the profile body (1022a) and abuts against the cavity wall of the hollow cavity corresponding to the top of the component mounting hole (1022b) and the cavity wall of the hollow cavity corresponding to the bottom of the component mounting hole (1022b).

9. The battery pack according to claim 7, characterized in that, The battery component (2) includes a component base (201) fixed in the component mounting hole (1022b) and a component body (202) detachably mounted in the component base (201). The sealing component (1022c) is positioned facing the battery component (2) and engages with the side wall of the component base (201).

10. The battery pack according to claim 9, characterized in that, The component base (201) has a component mounting surface (2012) at one end away from the battery module, and the component mounting surface (2012) has a base insertion hole (2011) for plugging and unplugging connection with the component body (202). The mounting surface (2012) of the component is an inclined surface, wherein the inclined surface is set downward.

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