Battery pack and vehicle

Abstract

The utility model discloses a kind of battery pack and vehicle, the battery pack, comprising: shell, middle crossbeam is equipped in the shell, the middle crossbeam will the shell be divided into battery installation cavity and electric control installation cavity, the battery installation cavity is installed with battery module;Fastening reinforcement, the shell and / or the middle crossbeam is installed with the fastening reinforcement, the fastening reinforcement is pressed to the battery module, and for the battery module is pressed in the battery installation cavity towards.This utility model embodiment's battery pack, battery module and electrical component can be set apart, to ensure the reliability of respective work, and battery module and electrical component can be arranged neatly in shell, improve space utilization, and battery module can be pressed in battery installation cavity, so that battery module can be relatively fixed with shell, to avoid vehicle vibration, battery module is prone to collision with shell and lead to local overheating or thermal runaway, improve the use safety of battery pack.

Description

Technical Field

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

[0002] The battery pack contains battery modules that store energy to provide power to the vehicle. However, when the vehicle vibrates, the battery modules are prone to collision with the battery pack casing, which can cause local overheating or even thermal runaway of the battery modules. There is room for improvement. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a battery pack in which the battery modules and electrical components are arranged separately to ensure the reliability of their respective operation. The battery modules and electrical components can be neatly arranged within the housing to improve space utilization. Furthermore, the battery modules can be relatively fixed to the housing to prevent collisions between the battery modules and the housing during vehicle vibrations, which could lead to localized overheating or thermal runaway of the battery modules, thus improving the safety of the battery pack.

[0004] A battery pack according to an embodiment of the present invention includes: a housing, wherein a central crossbeam is provided inside the housing, the central crossbeam dividing the housing into a battery mounting cavity and an electronic control mounting cavity, wherein a battery module is mounted in the battery mounting cavity; and a fastening reinforcement, wherein the fastening reinforcement is mounted on the housing and / or the central crossbeam, the fastening reinforcement pressing against the battery module and used to press the battery module toward the battery mounting cavity.

[0005] According to the battery pack of this utility model embodiment, the housing is divided into a battery mounting cavity and an electronic control mounting cavity by a middle crossbeam. This allows the battery modules and electrical components to be arranged separately to ensure the reliability of their respective operations. It also allows the battery modules and electrical components to be neatly arranged inside the housing, improving space utilization. Furthermore, by installing fastening reinforcements on the housing and / or the middle crossbeam, the battery modules can be pressed towards the battery mounting cavity, so that the battery modules can be relatively fixed to the housing. This prevents the battery modules from easily colliding with the housing during vehicle vibration, which could lead to local overheating or thermal runaway of the battery modules, thus improving the safety of the battery pack.

[0006] According to some embodiments of the present invention, the fastening reinforcement of the battery pack includes a first plate portion and a second plate portion, the first plate portion and the second plate portion are bent and connected, the first plate portion is connected to the shell or the intermediate crossbeam, and the second plate portion abuts against the battery module.

[0007] According to some embodiments of the present invention, in the battery pack, the first plate portion is detachably connected to the housing or the intermediate crossbeam; and / or, the first plate portion is attached to the upper surface of the housing or the intermediate crossbeam.

[0008] According to some embodiments of the present invention, the battery pack of the first plate is provided with at least one connection hole, the connection hole being used to pass through a connector connected to the housing or the intermediate crossbeam.

[0009] According to some embodiments of the present invention, the fastening reinforcement includes at least two second plate portions, which are spaced apart and connected to the first plate portion and respectively press against the battery module; and / or, the fastening reinforcement further includes an arc-shaped transition portion, which is connected between the first plate portion and the second plate portion.

[0010] According to some embodiments of the present invention, the battery module includes two battery end plates and multiple battery cells, the multiple battery cells are stacked between the two battery end plates along a first direction, and the fastening reinforcement is pressed against the battery end plates along the first direction.

[0011] According to some embodiments of the present invention, the battery end plate has at least one hollow hole on the side opposite to the battery cell, and at least a portion of the fastening reinforcement extends into one of the hollow holes to press against the battery end plate.

[0012] According to some embodiments of the present invention, the battery pack comprises multiple battery modules, which are sequentially distributed along a second direction. At least one of the multiple battery modules is provided with a fastening reinforcement at one end, and at the other end of at least one of the multiple battery modules is provided with a fastening reinforcement.

[0013] According to some embodiments of the present invention, the battery pack includes a first end plate and a second end plate, a middle crossbeam is distributed parallel to and spaced apart between the first end plate and the second end plate, a battery mounting cavity is formed between the first end plate and the middle crossbeam, an electronic control mounting cavity is formed between the second end plate and the middle crossbeam, and the fastening reinforcement is installed on the first end plate and / or the middle crossbeam.

[0014] This utility model also proposes a vehicle.

[0015] The vehicle according to the present invention includes the battery pack described in any of the above embodiments.

[0016] The vehicle and the aforementioned battery pack have the same advantages over the prior art, which will not be elaborated here.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the battery pack structure according to an embodiment of the present utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the battery pack structure according to an embodiment of the present utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the installation of the fastening reinforcement member and the first end plate of the battery pack according to an embodiment of the present utility model.

[0022] Figure label:

[0023] Battery pack 100,

[0024] Housing 1, intermediate crossbeam 11, battery mounting cavity 12, battery module 121, battery end plate 122, perforated hole 1221, battery cell 123, electronic control mounting cavity 13, first end plate 14, second end plate 15.

[0025] Fastening reinforcement 2, first plate 21, connector 211, second plate 22, arc-shaped transition 23.

[0026] 3. Connector; 4. Explosion-proof valve; 5. Mounting component; 6. Cover plate; 7. Electrical control box; 8. Battery management system; 9. Interlocking line. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0031] The following is for reference. Figures 1-3 According to the embodiment of the present utility model, the battery pack 100 can be arranged with the battery module 121 and electrical components spaced apart to ensure the reliability of their respective operation. The battery module 121 and electrical components can be neatly arranged in the housing 1 to improve space utilization. The battery module 121 can be relatively fixed to the housing 1 to prevent the battery module 121 from colliding with the housing 1 when the vehicle vibrates, which could lead to local overheating or thermal runaway of the battery module 121, thus improving the safety of the battery pack 100.

[0032] like Figures 1-3 As shown, a battery pack 100 according to an embodiment of the present invention includes: a housing 1 and a fastening reinforcement 2.

[0033] The housing 1 is provided with a middle crossbeam 11, which divides the housing 1 into a battery mounting cavity 12 and an electronic control mounting cavity 13. The battery mounting cavity 12 is equipped with a battery module 121. The housing 1 and / or the middle crossbeam 11 are equipped with a fastening reinforcement 2, which presses against the battery module 121 and is used to press the battery module 121 toward the battery mounting cavity 12.

[0034] Specifically, the housing 1 serves as the external structure of the battery pack 100 and has a large volume. It is used to install and protect the components inside the battery pack 100. The components inside the battery pack 100 are installed inside the housing 1, which protects them from damage or failure due to accidental collisions. At the same time, a middle crossbeam 11 is provided inside the housing 1. The middle crossbeam 11 is used to divide the housing 1 into a battery mounting cavity 12 and an electronic control mounting cavity 13. The battery mounting cavity 12 is used to install the battery module 121, and the electronic control mounting cavity 13 is used to install electrical components. By separating the battery mounting cavity 12 and the electronic control mounting cavity 13 through the middle crossbeam 11, the battery module 121 and the electrical components are set apart to avoid interference between them. This improves the reliability of the operation of the battery module 121 and the electrical components, and allows the battery module 121 and the electrical components to be neatly arranged inside the housing 1, thereby reducing the space occupied by the battery module 121 and the electrical components, improving space utilization, and thus reducing the volume and weight of the housing 1 and lowering the installation cost of the housing 1.

[0035] It should be noted that the intermediate crossbeam 11 can be extended along the length or width of the housing 1 so that the intermediate crossbeam 11 can divide the housing 1 into a battery mounting cavity 12 and an electronic control mounting cavity 13 along the length or width. An electronic control box 7 and a battery management system 8 are provided in the electronic control mounting cavity 13. Electrical components are installed in the electronic control box 7, which can protect the electrical components to improve their reliability. The battery management system 8 is connected to each module in the battery pack 100 through an interlock line 9, and the battery management system 8 is used to trigger a protection mechanism when the interlock line 9 detects an abnormality to avoid dangerous situations.

[0036] Furthermore, the intermediate crossbeam 11 divides the housing 1 into a battery mounting cavity 12 and an electronic control mounting cavity 13. That is, the battery mounting cavity 12 can be formed by the intermediate crossbeam 11 and the housing 1. Fastening reinforcement 2 is installed on the housing 1 and / or the intermediate crossbeam 11. The fastening reinforcement 2 can be installed on the housing 1 or the intermediate crossbeam 11, or the fastening reinforcement 2 can be installed on the housing 1 and the intermediate crossbeam 11 at the same time. Then the fastening reinforcement 2 can be brought closer to the battery module 121 so that the fastening reinforcement 2 can press against the battery module 121 to press the battery module 121 into the battery mounting cavity 12. In this way, the battery module 121 can be relatively fixed to the housing 1, so as to avoid the battery module 121 from easily colliding with the housing 1 when the vehicle vibrates, which would cause the battery module 121 to overheat or thermal runaway, thus improving the safety of the battery pack 100.

[0037] According to the embodiment of the present utility model, the battery pack 100 divides the housing 1 into a battery mounting cavity 12 and an electronic control mounting cavity 13 by a middle crossbeam 11. This allows the battery module 121 and electrical components to be arranged separately to ensure the reliability of their respective operations. It also allows the battery module 121 and electrical components to be neatly arranged within the housing 1, improving space utilization. Furthermore, by installing fastening reinforcements 2 on the housing 1 and / or the middle crossbeam 11, the battery module 121 can be pressed into the battery mounting cavity 12, so that the battery module 121 can be relatively fixed to the housing 1. This prevents the battery module 121 from easily colliding with the housing 1 during vehicle vibration, which could lead to local overheating or thermal runaway of the battery module 121, thus improving the safety of the battery pack 100.

[0038] In some embodiments, the fastening reinforcement 2 includes a first plate portion 21 and a second plate portion 22, the first plate portion 21 and the second plate portion 22 are bent and connected, the first plate portion 21 is connected to the housing 1 or the intermediate crossbeam 11, and the second plate portion 22 is pressed against the battery module 121.

[0039] Specifically, the fastening reinforcement 2 is used to press the battery module 121 toward the battery mounting cavity 12, such as... Figure 2 As shown, fastening reinforcements 2 are installed on both the housing 1 and the intermediate crossbeam 11. This increases the number of fastening reinforcements 2, improves the reliability of pressing the battery module 121, and allows the fastening reinforcements 2 on the housing 1 and the intermediate crossbeam 11 to be distributed at intervals, thereby improving the stability of pressing the battery module 121.

[0040] Furthermore, the fastening reinforcement 2 includes a first plate portion 21 and a second plate portion 22. The first plate portion 21 is used to connect with the housing 1 or the intermediate crossbeam 11, so that the fastening reinforcement 2 can be connected to the housing 1 or the intermediate crossbeam 11 through the first plate portion 21, so as to install and fix the fastening reinforcement 2 and improve the reliability of the fastening reinforcement 2. The second plate portion 22 is used to press against the battery module 121, so that the fastening reinforcement 2 can press against the battery module 121 through the second plate portion 22, so that the battery module 121 can be pressed into the battery mounting cavity 12, so that the battery module 121 can be relatively fixed with the housing 1, and avoid the battery module 121 from colliding with the housing 1 when the vehicle vibrates, which would cause local overheating or thermal runaway.

[0041] Furthermore, by bending and connecting the first plate portion 21 and the second plate portion 22, the fastening reinforcement 2 can be made into a whole, which can improve the structural strength and operational reliability of the fastening reinforcement 2. It can also make the first plate portion 21 move closer to the housing 1 or the intermediate crossbeam 11, and the second plate portion 22 move closer to the battery module 121, so as to connect the first plate portion 21 to the housing 1 or the intermediate crossbeam 11 and press the second plate portion 22 against the battery module 121.

[0042] In some embodiments, the first plate portion 21 is detachably connected to the housing 1 or the intermediate crossbeam 11; and / or, the first plate portion 21 is attached to the upper surface of the housing 1 or the intermediate crossbeam 11.

[0043] Specifically, the first plate 21 is connected to the housing 1 or the intermediate crossbeam 11 to install and fix the fastening reinforcement 2. The first plate 21 is detachably connected to the housing 1 or the intermediate crossbeam 11, which facilitates the connection or separation of the first plate 21 from the housing 1 or the intermediate crossbeam 11, and also facilitates the installation or removal of the fastening reinforcement 2. When installing the fastening reinforcement 2, the fastening reinforcement 2 can press the battery module 121 into the battery mounting cavity 12. When removing the fastening reinforcement 2, the damaged battery module 121 can be replaced, which helps to extend the service life of the battery pack 100.

[0044] Meanwhile, the first plate 21 is attached to the upper surface of the housing 1 or the intermediate crossbeam 11, which can connect the first plate 21 to the housing 1 or the intermediate crossbeam 11. This increases the contact area between the fastening reinforcement 2 and the housing 1 or the intermediate crossbeam 11, improving the connection reliability between the fastening reinforcement 2 and the housing 1 or the intermediate crossbeam 11. Furthermore, by attaching the first plate 21 to the upper surface of the housing 1 or the intermediate crossbeam 11, the fastening connector 211 can be connected to the upper part of the housing 1 or the intermediate crossbeam 11. This facilitates the user's operation of the fastening reinforcement 2 so that the fastening reinforcement 2 can press the battery module 121 into the battery mounting cavity 12, thereby achieving relative fixation between the battery module 121 and the housing 1.

[0045] In some embodiments, the first plate portion 21 is provided with at least one connection hole for a connector 211 that is connected to the housing 1 or the intermediate crossbeam 11 to pass through.

[0046] Specifically, the first plate portion 21 is used to connect with the housing 1 or the intermediate crossbeam 11. A connecting hole is provided on the first plate portion 21 for a connecting member 211 to pass through. The connecting member 211 can be simultaneously inserted into the connecting hole and the housing 1, or simultaneously inserted into the connecting hole and the intermediate crossbeam 11, to connect the first plate portion 21 to the housing 1 or the intermediate crossbeam 11, thereby achieving the installation and fixation of the fastening reinforcement 2. There is at least one connecting hole; that is, the number of connecting holes can be one, two, or three, etc. Each connecting member 211 corresponds to one connecting hole; that is, the number of connecting members 211 is also one, two, or three, etc. Thus, the first plate portion 21 can be connected to the housing 1 or the intermediate crossbeam 11 through at least one connecting member 211, thereby achieving reliable installation of the fastening reinforcement 2 and improving the reliability of the fastening reinforcement 2's operation. The connecting member 211 can be a bolt.

[0047] For example, such as Figure 3 As shown, the first plate 21 is provided with two connecting holes, that is, the number of connecting members 211 is also two. Thus, the first plate 21 can be connected to the housing 1 or the intermediate crossbeam 11 simultaneously through the two connecting members 211, thereby improving the connection reliability between the fastening reinforcement 2 and the housing 1 or the intermediate crossbeam 11. Moreover, the two connecting holes are distributed at intervals, so the first plate 21 can be connected to the housing 1 or the intermediate crossbeam 11 simultaneously at two positions through the two connecting members 211, thereby improving the connection stability between the fastening reinforcement 2 and the housing 1 or the intermediate crossbeam 11.

[0048] In some embodiments, the fastening reinforcement 2 includes at least two second plate portions 22, which are spaced apart and connected to the first plate portion 21 and respectively press against the battery module 121; and / or, the fastening reinforcement 2 further includes an arc-shaped transition portion 23, which is connected between the first plate portion 21 and the second plate portion 22.

[0049] Specifically, the second plate portion 22 presses against the battery module 121. The fastening reinforcement 2 includes at least two second plate portions 22, that is, the number of second plate portions 22 can be two, three or more, and at least two second plate portions 22 can be respectively pressed against the battery module 121, which can improve the reliability of pressing the battery module 121 into the battery mounting cavity 12. At the same time, by connecting at least two second plate portions 22 to the first plate portion 21 at intervals, at least two second plate portions 22 can be connected to the first plate portion 21 at the same time, so that when the first plate portion 21 is connected to the housing 1 or the intermediate crossbeam 11, at least two second plate portions 22 can be installed, improving the reliability of the operation of at least two second plate portions 22, and at least two second plate portions 22 can simultaneously press against the battery module 121 at at least two positions, thereby improving the stability of pressing the battery module 121 into the battery mounting cavity 12.

[0050] In such Figure 3 In the embodiment shown, the fastening reinforcement 2 includes two second plate portions 22, which are spaced apart and connected to the first plate portion 21. This allows the battery module 121 to be pressed against at two locations simultaneously by the two second plate portions 22, thereby improving the reliability and stability of pressing the battery module 121 toward the battery mounting cavity 12.

[0051] Furthermore, the fastening reinforcement 2 also includes an arc-shaped transition portion 23, which is connected between the first plate portion 21 and the second plate portion 22. This allows the arc-shaped transition portion 23 to be connected to both the first plate portion 21 and the second plate portion 22 simultaneously, thus connecting the first plate portion 21 and the second plate portion 22 together. This makes the fastening reinforcement 2 a whole, which can improve the overall structural strength and operational reliability of the fastening reinforcement 2. Moreover, at least part of the arc-shaped transition portion 23 is arc-shaped, which makes the connection between the first plate portion 21 and the second plate portion 22 smoother, so as to avoid scratching the user or causing wear to the battery module 121.

[0052] In some embodiments, the battery module 121 includes two battery end plates 122 and a plurality of battery cells 123, the plurality of battery cells 123 being stacked between the two battery end plates 122 along a first direction, and the fastening reinforcement 2 pressing against the battery end plates 122 along the first direction.

[0053] Specifically, the battery module 121 is used to store electrical energy to provide power to the vehicle. The battery module 121 includes two battery end plates 122 and multiple battery cells 123. The battery cells 123 are used to store electrical energy. The number of battery cells 123 can be two, three or more, so that multiple battery cells 123 can be used to store electrical energy at the same time, which can increase the amount of electrical energy stored and thus increase the capacity of the battery pack 100. The battery end plates 122 are used to protect the battery cells 123 to avoid collision between the battery cells 123 and the casing 1, which could lead to local overheating or thermal runaway. Since there are two battery end plates 122, the battery cells 123 can be protected by two battery end plates 122 at the same time, which can improve the reliability of the protection of the battery cells 123.

[0054] Furthermore, by stacking multiple battery cells 123 between two battery end plates 122 along the first direction, the multiple battery cells 123 can be arranged sequentially between the two battery end plates 122, which can improve space utilization, facilitate increasing the number of battery cells 123, thereby increasing the capacity of the battery pack 100. Moreover, the two battery end plates 122 can protect the battery cells 123 from both ends of the battery module 121 simultaneously, which can improve the reliability of protecting the battery cells 123 and reduce the number of battery end plates 122, thus reducing the installation cost.

[0055] Furthermore, by pressing the fastening reinforcement 2 against the battery end plate 122 along the first direction, the fastening reinforcement 2 can be disposed at the end of the battery module 121, so that the second plate portion 22 can press against the battery end plate 122, thereby allowing the fastening reinforcement 2 to press against the battery module 121 through the second plate portion 22, so that the battery module 121 can be fixed relative to the housing 1. The first direction can be the length direction or the width direction of the housing 1, and the first direction is the same as the distribution direction of the battery mounting cavity 12 and the electronic control mounting cavity 13.

[0056] In some embodiments, the battery end plate 122 has at least one hollow hole 1221 on the side opposite to the battery cell 123, and at least a portion of the fastening reinforcement 2 extends into one of the hollow holes 1221 to press against the battery end plate 122.

[0057] Specifically, the battery end plate 122 is provided with a hollow hole 1221. At least a portion of the fastening reinforcement 2 can extend into the hollow hole 1221 to press against the battery end plate 122. That is, the fastening reinforcement 2 can press against the battery module 121 at the hollow hole 1221. The hollow hole 1221 is set to at least one, that is, the number of hollow holes 1221 can be one, two or three, etc., so that the fastening reinforcement 2 can reliably press against the battery module 121 at at least one hollow hole 1221. At least a portion of the fastening reinforcement 2 can extend into one of the hollow holes 1221 to press against the battery end plate 122. That is, at least a portion of the fastening reinforcement 2 can selectively extend into one of the hollow holes 1221 to press against the battery end plate 122, and can reduce the length of the battery pack 100 along the first direction, which is beneficial to reduce the volume and weight of the battery pack 100.

[0058] Furthermore, the perforated hole 1221 is located on the side of the battery end plate 122 away from the battery cell 123, so that the perforated hole 1221 is set towards the side where the fastening reinforcement 2 is located, so that at least a part of the fastening reinforcement 2 can extend into the perforated hole 1221 to press the battery module 121.

[0059] For example, such as Figure 3 As shown, the second plate portion 22 of the fastening reinforcement 2 can extend into the hollow hole 1221 to press against the battery end plate 122. There are two second plate portions 22 and multiple hollow holes 1221. The two second plate portions 22 can selectively cooperate with two of the hollow holes 1221 to simultaneously press against the battery module 121, which can improve the reliability and stability of pressing against the battery module 121.

[0060] In some embodiments, there are multiple battery modules 121, and the multiple battery modules 121 are distributed sequentially along the second direction. At least one of the multiple battery modules 121 is provided with a fastening reinforcement 2 at one end, and at the other end of at least one of the multiple battery modules 121 is provided with a fastening reinforcement 2.

[0061] Specifically, the battery module 121 is used to store electrical energy. Multiple battery modules 121 can be configured, meaning there can be two, three, or more modules. This allows multiple battery modules 121 to be used simultaneously for energy storage, increasing the capacity of the battery pack 100. Furthermore, the multiple battery modules 121 are sequentially distributed along a second direction, allowing for a neat arrangement and improved space utilization. This further increases the number of battery modules 121, effectively increasing the capacity of the battery pack 100. Simultaneously, at least one end of each of the multiple battery modules 121 is provided with a fastening reinforcement 2, allowing for selective placement of the fastening reinforcement 2 at one end of each module. A fastening reinforcement 2 is also provided at the other end of each of the multiple battery modules 121, allowing for reliable clamping of the battery module 121. The second direction can be the width or length direction of the housing 1.

[0062] In such Figure 2 In the illustrated embodiment, there are four battery modules 121, which are distributed sequentially along the second direction. The four battery modules 121 are used to store electrical energy together, which can increase the capacity of the battery pack 100. At the same time, fastening reinforcement members 2 are selectively provided at both ends of the four battery modules 121 to reliably press the four battery modules 121 together. The number and position of the fastening reinforcement members 2 can be selected according to the actual situation, which can improve the flexibility of the installation.

[0063] In this application, the first direction is the length direction of the shell 1, and the second direction is the width direction of the shell 1. That is, the first direction is the front-back direction of the illustrated direction, and the second direction is the left-right direction of the illustrated direction.

[0064] In some embodiments, the housing 1 includes a first end plate 14 and a second end plate 15, a middle crossbeam 11 is distributed parallel to each other between the first end plate 14 and the second end plate 15, a battery mounting cavity 12 is formed between the first end plate 14 and the middle crossbeam 11, an electronic control mounting cavity 13 is formed between the second end plate 15 and the middle crossbeam 11, and a fastening reinforcement 2 is installed on the first end plate 14 and / or the middle crossbeam 11.

[0065] Specifically, the housing 1 includes a first end plate 14 and a second end plate 15. A middle crossbeam 11 is distributed parallel to and spaced between the first end plate 14 and the second end plate 15, that is, the middle crossbeam 11 is parallel to the first end plate 14 and the second end plate 15. A battery mounting cavity 12 is formed between the first end plate 14 and the middle crossbeam 11, and an electronic control mounting cavity 13 is formed between the second end plate 15 and the middle crossbeam 11. This allows the middle crossbeam 11 to separate the battery mounting cavity 12 and the electronic control mounting cavity 13, thereby housing the battery module. The battery module 121 and electrical components are neatly arranged inside the housing 1, improving space utilization. Furthermore, the first end plate 14 and / or the intermediate crossbeam 11 are equipped with fastening reinforcement 2. The fastening reinforcement 2 can be installed on the first end plate 14 or the intermediate crossbeam 11, or simultaneously on the first end plate 14 and the intermediate crossbeam 11. This allows the fastening reinforcement 2 to be brought closer to the battery module 121, so that the fastening reinforcement 2 can be pressed against the battery module 121, thereby fixing the battery module 121 relative to the housing 1.

[0066] For example, such as Figure 2 As shown, fastening reinforcements 2 are installed on both the first end plate 14 and the intermediate crossbeam 11. This increases the number of fastening reinforcements 2, improves the reliability of pressing the battery module 121, and allows the fastening reinforcements 2 on the first end plate 14 and the intermediate crossbeam 11 to be spaced apart, thereby improving the stability of pressing the battery module 121.

[0067] And, it should be noted that, such as Figures 1-2 As shown, the housing 1 has connectors 3 on both the side of the electronic control mounting cavity 13 away from the battery mounting cavity 12 and the side of the battery mounting cavity 12 away from the electronic control mounting cavity 13. The connectors 3 are used to connect the battery pack 100 to the motor to provide power to the vehicle. The two connectors 3 are spaced apart, which makes it easy to connect the two connectors 3 to motors in different positions and avoids interference between the two connectors 3, which would reduce their reliability. In addition, the housing 1 also has an explosion-proof valve 4 on the side of the electronic control mounting cavity 13 away from the battery mounting cavity 12. The explosion-proof valve 4 is used to release pressure when the internal pressure of the battery pack 100 is too high, so as to prevent the battery pack 100 from exploding and improve the safety of the battery pack 100. The two explosion-proof valves 4 improve the reliability and efficiency of pressure release and effectively reduce the risk of battery pack 100 explosion. The two explosion-proof valves 4 are spaced apart from the connectors 3 on the same side, which avoids interference between the three and improves the reliability of their respective operations.

[0068] Meanwhile, a mounting bracket 5 is provided on the outside of the housing 1. The mounting bracket 5 is used to connect with other components on the vehicle to realize the installation and fixation of the battery pack 100 on the vehicle. There are multiple mounting brackets 5, which are distributed circumferentially along the housing 1. The battery pack 100 can be fixed at multiple positions simultaneously by multiple mounting brackets 5, which can improve the reliability and stability of fixing the battery pack 100. In addition, the battery pack 100 also includes a cover plate 6, which is used to connect with the housing 1 to jointly protect the battery module 121 and electrical components, which can improve the reliability of protection. The cover plate 6 and the housing 1 are detachably connected. For example, the two can be connected by bolts, which can facilitate the connection or separation of the cover plate 6 and the housing 1, thereby facilitating the installation or removal of the battery module 121 and electrical components.

[0069] This utility model also proposes a vehicle.

[0070] The vehicle according to the present invention includes a battery pack 100 of any of the above embodiments. The housing 1 is divided into a battery mounting cavity 12 and an electronic control mounting cavity 13 by a central crossbeam 11. This allows the battery module 121 and electrical components to be spaced apart to ensure their reliable operation. It also allows the battery module 121 and electrical components to be neatly arranged within the housing 1, improving space utilization. Furthermore, by simultaneously installing fastening reinforcements 2 on the first end plate 14 and the central crossbeam 11, the fastening reinforcements 2 can reliably press the battery module 121, thereby fixing the battery module 121 relatively to the housing 1. This prevents the battery module 121 from easily colliding with the housing 1 during vehicle vibrations, which could lead to localized overheating or thermal runaway of the battery module 121, thus improving the safety of the battery pack 100.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that, include: The housing has a central crossbeam that divides the housing into a battery mounting cavity and an electronic control mounting cavity, and the battery mounting cavity is equipped with a battery module. A fastening reinforcement is provided, wherein the housing and / or the intermediate crossbeam are fitted with the fastening reinforcement, the fastening reinforcement is pressed against the battery module, and is used to press the battery module toward the battery mounting cavity.

2. The battery pack according to claim 1, characterized in that, The fastening reinforcement includes a first plate and a second plate, which are bent and connected together. The first plate is connected to the housing or the intermediate crossbeam, and the second plate abuts against the battery module.

3. The battery pack according to claim 2, characterized in that, The first plate is detachably connected to the housing or the intermediate crossbeam; And / or, the first plate portion is attached to the upper surface of the housing or the intermediate crossbeam.

4. The battery pack according to claim 3, characterized in that, The first plate is provided with at least one connection hole, which is used to pass through a connector that is connected to the housing or the intermediate crossbeam.

5. The battery pack according to claim 2, characterized in that, The fastening reinforcement includes at least two second plate portions, which are spaced apart and connected to the first plate portion, and respectively press against the battery module; And / or, the fastening reinforcement further includes an arc-shaped transition portion connected between the first plate portion and the second plate portion.

6. The battery pack according to any one of claims 1-5, characterized in that, The battery module includes two battery end plates and multiple battery cells. The multiple battery cells are stacked between the two battery end plates along a first direction, and the fastening reinforcement is pressed against the battery end plates along the first direction.

7. The battery pack according to claim 6, characterized in that, The battery end plate has at least one hollow hole on the side opposite to the battery cell, and at least a portion of the fastening reinforcement extends into one of the hollow holes to press against the battery end plate.

8. The battery pack according to claim 6, characterized in that, The battery modules are multiple, and the multiple battery modules are distributed sequentially along the second direction. At least one of the multiple battery modules is provided with a fastening reinforcement at one end, and at the other end of at least one of the multiple battery modules is provided with a fastening reinforcement.

9. The battery pack according to claim 1, characterized in that, The housing includes a first end plate and a second end plate, and the intermediate crossbeam is distributed parallel to and spaced apart between the first end plate and the second end plate. The battery mounting cavity is formed between the first end plate and the intermediate crossbeam, and the electronic control mounting cavity is formed between the second end plate and the intermediate crossbeam. The fastening reinforcement is installed on the first end plate and / or the intermediate crossbeam.

10. A vehicle, characterized in that, The battery pack includes any one of claims 1-9.

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