A battery pack and vehicle

Abstract

The utility model relates to battery pack technical field discloses a kind of battery pack and vehicle, battery pack includes box, multiple electric core, electrically conductive part and detection component, multiple electric core is located in the box, electrically conductive part is located in the box, electrically conductive part is located between the electric core and the bottom wall of the box, and spacing is formed with the bottom wall of the box, the detection component is electrically connected to the box and electrically conductive part, and the detection component is used to detect the on-off of electrically conductive part and the box. When the vehicle appears to support bottom, scratch and causes battery pack to be damaged, user can find in time, and the degree of damage of battery pack is judged, so that the security risk existing in battery pack is timely excluded.

Description

Technical Field

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

[0002] With the increasing popularity of new energy vehicles, their safety has become a major challenge for the industry, especially the safety of their batteries. The battery pack is typically installed at the bottom of the vehicle; during driving, it is susceptible to damage from bottoming out or scraping, severely impacting vehicle safety.

[0003] To address this, some vehicles now install underbody protection plates to protect the battery pack and reduce the risk of damage caused by bottoming out or scraping. However, when the battery pack is damaged due to bottoming out or scraping, users may not notice it in time or be able to assess the extent of the damage, leading to potential safety hazards. Utility Model Content

[0004] This utility model discloses a battery pack and a vehicle. When the vehicle is scraped or bumped and the battery pack is damaged, the user can promptly detect the damage and determine the extent of the damage, thereby eliminating potential safety hazards to the battery pack.

[0005] In a first aspect, this utility model discloses a battery pack, including a housing, multiple battery cells, a conductive element, and a detection component. The multiple battery cells are disposed in the housing, and the conductive element is disposed in the housing. The conductive element is located between the battery cells and the bottom wall of the housing, and forms a gap with the bottom wall of the housing. The detection component is electrically connected to the housing and the conductive element, and the detection component is used to detect the continuity between the conductive element and the housing.

[0006] As an optional implementation, in this embodiment of the present invention, the housing includes a bottom shell and a top cover, the top cover being connected to the bottom shell, the battery cell being located between the bottom shell and the top cover, the conductive element being located on the side of the battery cell facing the bottom shell, and the detection component being electrically connected to the bottom shell and the conductive element to detect the continuity between the conductive element and the bottom shell.

[0007] As an optional implementation, in this embodiment of the present invention, the spacing is d, where 1mm ≤ d ≤ 10mm.

[0008] As an optional implementation, in this embodiment of the present invention, the thickness of the conductive element is t1, where 0.01mm≤t1≤10mm.

[0009] As an optional implementation, in this embodiment of the present invention, a plurality of battery cells are arranged along a first direction to form a battery cell array, and the plurality of battery cell arrays are arranged along a second direction. The conductive element includes a plurality of sub-conductive elements, and the plurality of sub-conductive elements are respectively disposed in correspondence with the plurality of battery cell arrays. The first direction is perpendicular to the second direction.

[0010] As an optional implementation, in this embodiment of the present invention, a cooling plate is sandwiched between each pair of adjacent battery cells, the cooling plate having a first end protruding from the battery cell along the bottom wall, and the sub-conductive element is disposed at the first end.

[0011] As an optional implementation, in this embodiment of the present invention, the battery pack further includes an insulating buffer, which is disposed at the first end and located between the battery cell and the conductive element.

[0012] As an optional implementation, in this embodiment of the present invention, the thickness of the insulating buffer is t2, where 0.01mm≤t2≤10mm.

[0013] As an optional implementation, in this embodiment of the present invention, the area of ​​the side of the battery cell array facing the bottom wall is S1, and the area of ​​the sub-conductive component is S2, where 0.05S1≤S2≤0.9S1.

[0014] Secondly, this utility model discloses a vehicle including the battery pack of the first aspect.

[0015] Compared with the prior art, the embodiments of this utility model have at least the following beneficial effects:

[0016] In this embodiment of the invention, multiple battery cells are housed within a casing. These cells enable the charging and discharging of the battery pack, while the casing protects them. If the casing is damaged or deformed by external force, it can easily compress the battery cells, causing damage or even igniting the battery pack. Therefore, this embodiment incorporates a conductive element within the casing, positioned between the battery cells and the bottom wall of the casing. This element creates a gap between itself and the casing, preventing electrical connection between them. Simultaneously, a detection component is electrically connected to both the casing and the conductive element, detecting the continuity between them. Thus, when the battery pack is in normal operation, the conductive element maintains a gap with the bottom wall of the casing, and the detection component indicates that the element is not conductive. When a vehicle scrapes or bumps itself, causing damage to the battery pack, the bottom wall of the battery pack deforms inward, causing it to come into contact with conductive components. The detection component will then detect that the conductive components are connected to the battery pack, allowing the user to notice the damage promptly. Furthermore, based on the different levels of conductivity detected by the detection component, the user can assess the extent of the battery pack damage and thus promptly eliminate any potential safety hazards. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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 from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a battery pack disclosed in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a battery pack (damaged battery pack) disclosed in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a vehicle disclosed in Embodiment 2 of this utility model;

[0021] Figure 4 This is a simplified structural diagram of a vehicle disclosed in Embodiment 2 of this utility model.

[0022] Explanation of main figure symbols

[0023] 100. Battery pack; 101. Housing; 101a. Bottom shell; 101b. Top cover; 102. Cell array; 103. Cooling plate; 103a. First end; 104. Insulating buffer; 11. Conductive component; 11a. Sub-conductive component; 12. Detection component; 200. Vehicle; x. First direction; y. Second direction. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0028] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0029] This utility model discloses a battery pack and a vehicle. When the vehicle is scraped or bumped and the battery pack is damaged, the user can promptly detect the damage and assess the extent of the damage, thereby eliminating potential safety hazards to the battery pack.

[0030] Example 1

[0031] Please see Figure 1This is a schematic diagram of the structure of a battery pack 100 provided in Embodiment 1 of the present utility model. The battery pack 100 includes a housing 101, a plurality of battery cells, a conductive element 11, and a detection component 12. The plurality of battery cells are disposed inside the housing 101, and the conductive element 11 is disposed inside the housing 101. The conductive element 11 is located between the battery cells and the bottom wall of the housing 101 and forms a gap with the bottom wall of the housing 101. The detection component 12 is electrically connected to the housing 101 and the conductive element 11, and the detection component 12 is used to detect the continuity between the conductive element 11 and the housing 101.

[0032] In this embodiment, multiple battery cells are housed within a housing 101. These cells enable the charging and discharging of the battery pack 100, while the housing 101 protects them. If the housing 101 is damaged or deformed by external force, it can easily compress the battery cells, causing damage or even igniting the battery pack 100. Therefore, this embodiment incorporates a conductive element 11 within the housing 101, positioned between the battery cells and the bottom wall of the housing 101. This creates a gap between the conductive element 11 and the bottom wall of the housing 101, preventing electrical connection between them. Simultaneously, a detection component 12 is electrically connected to both the housing 101 and the conductive element 11, detecting the continuity between them. Thus, when the battery pack 100 is in a normal state (e.g., when the battery pack 100 is in a normal state...), the system can detect the continuity between the conductive element 11 and the housing 101. Figure 1 As shown), the conductive element 11 forms a gap with the bottom wall of the housing 101, and the detection component 12 detects that the conductive element 11 and the housing 101 are not conductive. Figure 2 As shown, when the vehicle bottoms out or scrapes and the battery pack 100 is damaged, the bottom wall of the housing 101 deforms inward, causing the bottom wall of the housing 101 to come into contact with the conductive component 11 and conduct electricity. The detection component 12 then detects that the conductive component 11 is conducting with the housing 101, which allows the user to notice in time. Furthermore, based on the different conduction conditions between the housing 101 and the conductive component 11 detected by the detection component 12, the user can determine the extent of damage to the battery pack 100 and thus promptly eliminate any potential safety hazards to the battery pack 100.

[0033] For example, if the detection component 12 detects a single continuity between the housing 101 and the conductive component 11, the user can determine that the battery pack 100 is slightly damaged and the vehicle has suffered a minor bottoming-out. If the detection component 12 detects intermittent continuity between the housing 101 and the conductive component 11, the user can determine that the battery pack 100 is moderately damaged and the vehicle has suffered a moderate bottoming-out. If the detection component 12 detects continuous continuity between the housing 101 and the conductive component 11, the user can determine that the battery pack 100 is severely damaged and the vehicle has suffered a serious bottoming-out.

[0034] in, Figure 1 and Figure 2The detection component 12 is shown to be electrically connected to the conductive component 11 and the housing 101 in a dashed line manner.

[0035] In some embodiments, such as Figure 1 As shown, the housing 101 includes a bottom shell 101a and a top cover 101b. The top cover 101b is connected to the bottom shell 101a. The battery cell is located between the bottom shell 101a and the top cover 101b. The conductive element 11 is located on the side of the battery cell facing the bottom shell 101a. The detection component 12 is electrically connected to the bottom shell 101a and the conductive element 11 to detect the continuity between the conductive element 11 and the bottom shell 101a. In this way, on the one hand, the assembly difficulty of components such as the battery cell and the conductive element 11 with the housing 101 is low due to the connection between the top cover 101b and the bottom shell 101a, and the disassembly and maintenance difficulty is also low. On the other hand, because the detection component 12 is electrically connected to the bottom shell 101a, when the conductive element 11 contacts the bottom wall of the bottom shell 101a and conducts, the wiring length between the detection component 12 and the conduction position is short, and the detection component 12 can detect the corresponding information relatively quickly, resulting in high detection accuracy.

[0036] For example, the distance between the conductive element 11 and the bottom wall of the housing 101 is d, where 1mm≤d≤10mm.

[0037] If the spacing d < 1mm, the spacing d is small. When the battery pack 100 is in a normal state, the conductive element 11 is prone to accidental contact with the bottom wall of the housing 101, causing the detection component 12 to detect that the conductive element 11 is connected to the housing 101. This leads to an incorrect judgment that the battery pack 100 is damaged, resulting in the vehicle bottoming out or scraping. The detection accuracy of the detection component 12 is low. If the spacing d > 10mm, the spacing d is large. When the battery pack 100 is damaged, the housing 101 needs to deform to a greater extent so that the bottom wall of the housing 101 can make contact with the conductive element 11 and conduct electricity. Only then can the detection component 12 detect the information that the conductive element 11 is connected to the housing 101. Therefore, it is difficult for the user to detect and eliminate the safety hazard of the battery pack 100 in time. Therefore, the spacing d can be 1mm ≤ d ≤ 10mm, which can prevent the conductive element 11 from accidentally contacting the bottom wall of the housing 101 when the battery pack 100 is in a normal state, thus avoiding the detection component 12 detecting that the conductive element 11 is connected to the housing 101. This avoids incorrect judgment that the battery pack 100 is damaged, resulting in the vehicle bottoming out or scraping. The detection component 12 has high detection accuracy. When the battery pack 100 is damaged, the housing 101 only needs to undergo a small degree of deformation to allow the bottom wall of the housing 101 to contact and conduct with the conductive element 11. The detection component 12 can detect the information that the conductive element 11 is connected to the housing 101 in a timely manner, allowing the user to promptly identify and eliminate any potential safety hazards in the battery pack 100.

[0038] Furthermore, the spacing d can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., and this embodiment does not make specific limitations on it.

[0039] Optionally, the conductive element 11 can be a metal foil, metal mesh, etc. In this way, by providing a variety of different types of conductive elements 11, the battery pack 100 can select the type of conductive element 11 according to the actual situation, thereby meeting different usage requirements.

[0040] For example, such as Figure 2 As shown, the thickness of the conductive component 11 is t1, where 0.01mm ≤ t1 ≤ 10mm.

[0041] If the thickness t1 of the conductive component 11 is less than 0.01 mm, the conductive component 11 is relatively thin, making its fabrication more difficult. Furthermore, the conductive component 11 is relatively soft, making its assembly and fixation within the housing 101 more challenging. Additionally, the conductive component 11 is prone to deformation and accidental contact with the bottom wall of the housing 101, leading the detection component 12 to detect a connection between the conductive component 11 and the housing 101. This results in an incorrect assessment that the battery pack 100 is damaged, potentially causing the vehicle to scrape or bottom out. The detection accuracy of the detection component 12 is also low. Conversely, if the thickness t1 of the conductive component 11 is greater than 10 mm, the conductive component 11 is relatively thick, resulting in higher fabrication costs and a larger space requirement, which is detrimental to the miniaturization design of the battery pack 100. Therefore, the thickness t1 of the conductive component 11 can be 0.01mm≤t1≤10mm. The conductive component 11 is relatively easy to manufacture and relatively rigid, making its assembly and fixation within the housing 101 easier. This avoids deformation of the conductive component 11 and accidental contact with the bottom wall of the housing 101, which could lead to the detection component 12 detecting a connection between the conductive component 11 and the housing 101. This prevents erroneous assessments of battery pack 100 damage and potential vehicle scraping or bottoming out. The detection component 12 also exhibits high accuracy. Furthermore, the conductive component 11 has low manufacturing costs and occupies less space, which is beneficial for the miniaturization design of the battery pack 100.

[0042] Furthermore, the thickness t1 of the conductive component 11 can be 0.01mm, 0.05mm, 0.1mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm, 3mm, 5mm, 7mm, 9mm, 10mm, etc., and this embodiment does not make specific limitations on it.

[0043] In some embodiments, such as Figure 1 and Figure 2As shown, the battery pack 100 includes multiple battery cells, which are arranged along a first direction x to form a cell array 102. The cell arrays 102 are arranged along a second direction y. The conductive element 11 includes multiple sub-conductive elements 11a, each corresponding to one of the cell arrays 102. The first direction x is perpendicular to the second direction y. Thus, on one hand, by arranging the multiple battery cells along the first direction x to form the cell arrays 102 and the cell arrays 102 along the second direction y, the battery pack 100 has a strong charging and discharging capability. On the other hand, by using the multiple sub-conductive elements 11a corresponding to one of the cell arrays 102, when the bottom wall of the housing 101 deforms inward at the positions corresponding to each cell array 102, the detection component 12 can detect the conductivity between the conductive element 11 and the housing 101.

[0044] Optionally, multiple sub-conductive components 11a can be electrically connected to the detection component 12 respectively. Then, when the detection component 12 detects that the corresponding sub-conductive component 11a is connected to the housing 101, it can simultaneously obtain the specific location of the housing 101 that is damaged and deformed. That is, it can accurately inspect and repair the battery pack 100 based on the specific location of the damage and deformation of the housing 101, reducing the difficulty of inspecting and repairing the battery pack 100.

[0045] For example, the area of ​​the side of the cell array 102 facing the bottom wall is S1, and the area of ​​the sub-conducting element 11a is S2, where 0.05S1≤S2≤0.9S1.

[0046] If the area S2 of the sub-conductive element 11a is less than 0.05S1, then the area of ​​the sub-conductive element 11a is smaller than the area of ​​the cell array 102. The projection area of ​​the sub-conductive element 11a onto the cell array 102 is also smaller. When the detection component 12 is in contact with the bottom wall of the housing 101 through the conductive element 11, there is a risk that the small coverage area of ​​the conductive element 11 may prevent the detection component 12 from detecting the cell. If the area S2 of the sub-conductive element 11a is greater than 0.9S1, then while the area of ​​the sub-conductive element 11a is sufficient for the detection component 12 to perform detection, the space occupied by the sub-conductive element 11a is large, resulting in higher manufacturing costs. Therefore, the area S2 of the sub-conductive element 11a can be 0.05S1≤S2≤0.9S1. This ensures that when the detection component 12 is in contact with the bottom wall of the housing 101 through the conductive element 11, the conductive element 11 has a large coverage area to enable the detection component 12 to perform detection, while also minimizing the space occupied by the sub-conductive element 11a and reducing manufacturing costs.

[0047] Furthermore, the area S2 of the sub-conductive component 11a can be 0.05S1, 0.1S1, 0.2S1, 0.3S1, 0.4S1, 0.5S1, 0.6S1, 0.7S1, 0.8S1, 0.9S1, etc., and this embodiment does not specifically limit it.

[0048] In some embodiments, a cooling plate 103 is sandwiched between every two adjacent cell rows 102. The cooling plate 103 has a first end 103a protruding from the cell along the bottom wall facing the housing 101, and a sub-conductive element 11a is disposed at the first end 103a. In this way, on the one hand, by providing the cooling plate 103 inside the housing 101, heat dissipation of the cell can be achieved by the cooling plate 103, reducing the operating temperature of the battery pack 100 and improving the safety of the battery pack 100. On the other hand, by using the first end 103a of the cooling plate 103 to provide the sub-conductive element 11a, there is no need to design an additional structure in the housing 101 to install the sub-conductive element 11a, which simplifies the structure of the housing 101 and reduces the manufacturing difficulty of the housing 101.

[0049] Optionally, the sub-conductive component 11a can be attached to the first end 103a by means of bonding, screwing, snap-fitting, etc. In this way, by providing a variety of different connection methods for the sub-conductive component 11a, the battery pack 100 can select the way the sub-conductive component 11a is located at the first end 103a according to the actual situation, thereby meeting different usage requirements.

[0050] In some embodiments, the battery pack 100 further includes an insulating buffer 104, which is disposed within the housing 101 and located between the battery cell and the conductive element 11. Thus, by providing the insulating buffer 104 within the housing 101 and positioning it between the battery cell and the conductive element 11, when the housing 101 is damaged or deformed by external force, the housing 101 contacts and conducts electricity with the conductive element 11, compressing the insulating buffer 104. This buffering action reduces the force on the battery cell. Furthermore, by separating the battery cell and the conductive element 11 using the insulating buffer 104, a short circuit caused by the battery cell becoming conductive with the conductive element 11 can be avoided, thus improving the safety of the battery cell.

[0051] Optionally, the insulating buffer 104 and the conductive element 11 can be bonded or fixedly connected in other ways. By providing a variety of different types of insulating buffer 104, the battery pack 100 can select the type of insulating buffer 104 according to the actual situation, thereby meeting different usage requirements.

[0052] For example, such as Figure 1 As shown, the thickness of the insulating buffer 104 is t2, where 0.01mm≤t2≤10mm.

[0053] If the thickness t2 of the insulating buffer 104 is less than 0.01 mm, the insulating buffer 104 is too thin, resulting in poor buffering effect and low strength. When the housing 101 is damaged or deformed by external force, the housing 101 will come into contact with the conductive component 11 and compress the insulating buffer 104, easily causing it to break and fail, thus failing to provide effective buffering and insulation. If the thickness t2 of the insulating buffer 104 is greater than 10 mm, then even if the insulating buffer 104 already meets the design requirements for buffering and insulation, its large thickness results in higher manufacturing costs and is not conducive to the miniaturization design of the battery pack 100. Therefore, the thickness t2 of the insulating buffer 104 can be 0.01mm≤t2≤10mm. The insulating buffer has a better buffering effect and higher strength. When the housing 101 is damaged and deformed by external force, the housing 101 contacts the conductive component 11 and compresses the insulating buffer 104, which can prevent the insulating buffer 104 from being damaged, broken, or failing, ensuring that the insulating buffer 104 can provide effective buffering and insulation. At the same time, the insulating buffer 104 has a small thickness, resulting in lower manufacturing cost, which is beneficial for the miniaturization design of the battery pack 100.

[0054] Furthermore, the thickness t2 of the insulating buffer 104 can be 0.01mm, 0.05mm, 0.1mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm, 3mm, 5mm, 7mm, 9mm, 10mm, etc., and this embodiment does not make a specific limitation on it.

[0055] Optionally, the insulating buffer 104 can be an insulating film, foam, insulating board, etc. Therefore, this embodiment does not impose a specific limitation on it.

[0056] Optionally, the insulating buffer 104 is disposed at the first end 103a. In this way, by using the first end 103a of the cooling plate 103 to provide the insulating buffer 104, there is no need to design an additional structure in the housing 101 to install the insulating buffer 104, which simplifies the structure of the housing 101 and reduces the manufacturing difficulty of the housing 101.

[0057] This utility model provides a battery pack 100, in which multiple battery cells are disposed within a housing 101. The battery cells enable the charging and discharging of the battery pack 100, while the housing 101 protects the battery cells. If the housing 101 is damaged or deformed by external force, the housing 101 may easily compress the battery cells, causing damage or even igniting the battery pack 100. Therefore, this embodiment provides a conductive element 11 within the housing 101, positioned between the battery cells and the bottom wall of the housing 101. The conductive element 11 and the bottom wall of the housing 101 form a gap, preventing electrical connection between the conductive element 11 and the housing 101. Simultaneously, a detection component 12 is electrically connected to the housing 101 and the conductive element 11 to detect the continuity between the conductive element 11 and the housing 101. Thus, when the battery pack 100 is in a normal state, the conductive element 11 forms a gap with the bottom wall of the housing 101, and the detection component 12 detects that the conductive element 11 and the housing 101 are not conductive. However, when the vehicle is scraped or bumped, causing damage to the battery pack 100, the bottom wall of the housing 101 deforms inward, causing the bottom wall of the housing 101 to come into contact with the conductive element 11 and become conductive. In this case, the detection component 12 detects that the conductive element 11 and the housing 101 are conductive, allowing the user to detect the damage in time. Furthermore, based on the different conductivity conditions detected by the detection component 12 between the housing 101 and the conductive element 11, the user can determine the extent of damage to the battery pack 100, thereby promptly eliminating any potential safety hazards associated with the battery pack 100.

[0058] Example 2

[0059] Please see Figure 3 and Figure 4 This is a structural schematic diagram of a vehicle 200 provided in Embodiment 2 of the present invention. The vehicle 200 includes the battery pack 100 of Embodiment 1.

[0060] Embodiment 2 of this utility model provides a vehicle 200 that, when the vehicle 200 is involved in a bottoming out or scraping incident that damages the battery pack, the user can promptly detect and assess the extent of the damage, thereby eliminating potential safety hazards associated with the battery pack.

[0061] The above provides a detailed description of a battery pack and vehicle disclosed in the embodiments of this utility model. This article uses specific examples to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the battery pack and vehicle of this utility model and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A battery pack, characterized by, include: The housing includes a bottom shell and a top cover, with the top cover fitting and connecting to the bottom shell. Multiple battery cells are disposed within the housing, and the battery cells are located between the bottom shell and the top cover; A conductive element is disposed inside the housing, located on the side of the battery cell facing the bottom shell, and forming a gap with the bottom wall of the bottom shell; as well as A detection component is electrically connected to the bottom shell and the conductive element, and the detection component is used to detect the continuity between the conductive element and the bottom shell.

2. The battery pack according to claim 1, characterized in that, The spacing is d, where 1mm ≤ d ≤ 10mm.

3. The battery pack according to claim 1, characterized in that, The thickness of the conductive component is t1, where 0.01mm ≤ t1 ≤ 10mm.

4. The battery pack according to any one of claims 1 to 3, characterized in that, Multiple battery cells are arranged along a first direction to form a battery cell array, and multiple battery cell arrays are arranged along a second direction. The conductive element includes multiple sub-conductive elements, and each of the multiple sub-conductive elements is respectively disposed in correspondence with one of the multiple battery cell arrays. The first direction is perpendicular to the second direction.

5. The battery pack according to claim 4, characterized in that, A cooling plate is sandwiched between each pair of adjacent cell stacks, the cooling plate having a first end protruding from the cell along the bottom wall, and the sub-conductor is disposed at the first end.

6. The battery pack according to claim 5, characterized in that, The battery pack also includes an insulating buffer, which is disposed at the first end and located between the battery cell and the conductive element.

7. The battery pack according to claim 6, characterized in that, The thickness of the insulating buffer is t2, where 0.01mm ≤ t2 ≤ 10mm.

8. The battery pack according to claim 4, characterized in that, The area of ​​the side of the battery cell array facing the bottom wall is S1, and the area of ​​the sub-conductive component is S2, where 0.05S1≤S2≤0.9S1.

9. A vehicle, characterized in that, Includes the battery pack as described in any one of claims 1 to 8.

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