Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment. The battery pack comprises a box body, a battery pack and a box body panel, the battery pack is arranged in the box body. The box body panel comprises a panel main body and a notch structure. The panel body is fixedly connected to the front end of the box body. The notch structure is connected with the panel body and is sunken towards the rear side relative to the panel body, and the panel body comprises two main board sections arranged at the left end and the right end of the notch structure respectively. The battery pack has better adaptability to a battery mounting space, or is favorable for providing higher energy density in the same battery mounting space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery pack and a power consumption device. BACKGROUND

[0002] The box panel of the battery pack is installed at the front end of the box, and the space formed by the box panel and the box serves as a device installation space for arranging components such as a battery management system (BMS), a high-voltage box (S-BOX), and a liquid delivery pipeline of a thermal management system. In the related art, the battery pack occupies a relatively large installation space due to the need to ensure the device installation space of the battery pack.

[0003] The above statements are only used to provide background technical information related to the present application, and do not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a battery pack and a power consumption device, aiming to solve the problem of a relatively large installation space occupied by the battery pack.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a battery pack, comprising: a box; a battery pack arranged in the box; and a box panel; wherein the box panel comprises: a panel main body fixedly connected to the front end of the box; and a notched structure connected to the panel main body and recessed towards the rear side relative to the panel main body, and the panel main body comprises two main plate segments respectively arranged at the left and right ends of the notched structure.

[0006] By providing the box panel comprising the panel main body and the notched structure, and the panel main body comprising the two main plate segments respectively arranged at the left and right ends of the notched structure, the notched structure is beneficial to avoiding the special-shaped structure of one end of the box panel arranged in the battery installation space, so that the battery pack has better adaptability to the battery installation space, or is beneficial to providing higher energy density in the same battery installation space.

[0007] In some embodiments of the battery pack, the notched structure comprises: a notched back plate extending along the left-right direction; and two notched side plates extending along the front-rear direction, the rear ends of the two notched side plates are respectively connected to the left and right ends of the notched back plate, and the front ends of the two notched side plates are fixedly connected to the panel main body.

[0008] In the above notched structure, the notched back plate and the two notched side plates form a U-shaped structure, and such a U-shaped structure has the advantages of simple processing and manufacturing and high structural strength.

[0009] In some embodiments of the battery pack, further comprising: a heat exchange part configured to adjust the temperature of the battery pack; and a liquid delivery pipeline connected to the heat exchange part, the liquid delivery pipeline being arranged in the notched structure.

[0010] By arranging the infusion pipeline in the notch structure, the device installation space between the box panel and the box is avoided to be occupied by arranging the infusion pipeline, and the additional space in the front side of the panel body is avoided to be occupied, so that the internal layout of the battery pack is more reasonable, the structure is more compact, the space utilization of the battery pack is improved, and the energy density of the battery pack is improved.

[0011] In the battery pack of some embodiments, the box panel further comprises a connecting table, the connecting table is connected to the inner lower side of the notch structure, the connecting table is provided with a mounting hole, the infusion pipeline is fixed on the connecting table and communicates with the mounting hole, and the mounting hole communicates with the heat exchange part.

[0012] By arranging the connecting table and the mounting hole on the connecting table, on the one hand, the connecting table can be used as a component for fixing the infusion pipeline, and on the other hand, the connecting table can form a part of the infusion pipeline, which is beneficial to simplify the assembly process. In addition, the design of the connecting table and the mounting hole reduces the risk of damage to the infusion pipeline by external impact, thereby improving the safety of the battery pack.

[0013] In the battery pack of some embodiments, the box panel comprises two connecting tables arranged at intervals along the left-right direction. Two infusion pipelines are respectively fixed on the two connecting tables.

[0014] One of the two infusion pipelines is used to transport the heat exchange medium to the heat exchange part, and the other is used to receive the heat exchange medium from the heat exchange part. By arranging two connecting tables arranged at intervals along the left-right direction, it is beneficial to avoid the structure in the battery installation space through the interval between the two connecting tables.

[0015] In the battery pack of some embodiments, the box panel further comprises at least one mounting surface, the mounting surface is arranged at the edge of the box panel and is configured to be sealingly connected with the box and / or the lid of the battery pack.

[0016] By arranging the mounting surface at the edge of the box panel and sealingly connecting the box panel with the box and / or the lid of the battery pack, the reliability of the sealing of the device installation space is improved. In addition, the design of the mounting surface also facilitates the disassembly and reinstallation during subsequent maintenance of the battery pack, thereby reducing the maintenance cost and shortening the maintenance time.

[0017] In the battery pack of some embodiments, the battery pack comprises a sealing structure arranged between the mounting surface and the box and / or the lid.

[0018] By setting the sealing structure between the mounting surface and the box body and / or the box cover, the sealing of the box panel and the box body and / or the box cover is achieved, so as to prevent impurities such as dust and moisture from entering the equipment mounting space, thereby improving the service life of the battery pack. In some embodiments, the sealing structure is a sealing gasket, a sealing ring, or a sealing rubber strip, etc. If necessary, two or more levels of sealing structures can be provided between the same mounting surface and the box body and / or the box cover to improve the reliability of the equipment mounting space sealing. When multiple levels of sealing structures are provided at the same position, the multiple levels of sealing structures can be the same kind of sealing structure or different kinds of sealing structure.

[0019] In the battery pack of some embodiments, the box panel is an integrally formed die casting.

[0020] The box panel in the form of an integrally formed die casting reduces assembly complexity and simplifies production processes. In addition, die casting integrally formed can achieve higher structural strength and dimensional accuracy, reducing the joint defects generated by traditional welding or splicing processes, thereby facilitating improved sealing of the battery pack.

[0021] The second aspect of the present application provides a use electric device, comprising the battery pack of the first aspect of the present application, the battery pack is configured to provide electric energy for the use electric device.

[0022] The use electric device provided by the embodiments of the present application has the same advantages as the battery pack provided by the embodiments of the present application.

[0023] In the use electric device of some embodiments, the use electric device comprises a vehicle, and the shape of the box panel is adapted to the shape of the chassis of the vehicle.

[0024] By setting the shape of the box panel to be adapted to the shape of the chassis of the vehicle, the internal space of the vehicle can be fully utilized, thereby facilitating optimization of the spatial layout of the vehicle and improving the space utilization rate of the vehicle.

[0025] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate exemplary embodiments of the present application and its description, which serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a use electric device according to some embodiments of the present application.

[0028] Figure 2 FIG. 2 is an exploded structural schematic diagram of a battery pack according to some embodiments of the present application, wherein the battery pack is not shown.

[0029] Figure 3 Fig. 2 is a structural schematic diagram of a battery pack in Fig. 1, wherein a box cover of the battery pack is not shown. Figure 2

[0030] Figure 4 Fig. 3 is a structural schematic diagram of a box panel of the battery pack in Fig. 1. Figure 2

[0031] Figure 5 Fig. 4 is a front view of the box panel in Fig. 3. Figure 4

[0032] Figure 6 Fig. 5 is a bottom view of the box panel in Fig. 3. Figure 4

[0033] Figure 7 Fig. 6 is an enlarged side view of the box panel in Fig. 3. Figure 4

[0034] Figure 1 to Figure 7 In Fig. 1, the reference signs respectively represent:

[0035] B, battery pack; D, electrical equipment; 10, box panel; 11, notch structure; 111, notch back plate; 112, notch side plate; 12, panel main body; 121, main plate segment; 13, connecting table; 131, mounting hole; S, mounting surface; 20, box; 30, box cover; 40, infusion pipeline. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] ​​​​​The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples herein are not meant to limit the scope of the present application unless otherwise specifically stated. Also, it is to be understood that the use of the terms "including", "having", "containing", or "comprising" and the like, are meant to be inclusive, and are intended to indicate that the item named can be present or be combined with one or more other items, but not exclusive. The terms "first", "second", or the like, do not mean that the corresponding parts are limited to the above terms, and thus cannot be construed as limiting the scope of the present application. The terms "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "top", "bottom", and the like, are used to indicate relative positions or orientations of the devices or elements shown in the drawings, and are used only for the convenience of description and simplification of the description, and thus cannot be construed as limiting the scope of the present application. The terms "inner", "outer" refer to the inner and outer sides with respect to the outline of each part.

[0038] In the description of the present application, it is to be understood that the use of terms such as "first", "second", etc., to describe a component does not limit the scope of the present application, unless otherwise specified, and thus cannot be construed as limiting the scope of the present application.

[0039] In the description of the present application, it is to be understood that the terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "top", "bottom", and the like, indicate the orientation or position relationship shown in the drawings, and are used only for the convenience of description and simplification of the description, and thus cannot be construed as limiting the scope of the present application. The terms "inner", "outer" refer to the inner and outer sides with respect to the outline of each part.

[0040] In the following description, "front" refers to one side of the mounting box panel of the battery pack, "back" refers to the side opposite to "front", "left" and "right" refer to the left and right directions formed when viewed from front to back, "up" refers to the side where the opening of the box is located, and "down" refers to the side where the bottom of the box is located.

[0041] In addition, when an element is referred to as "on" another element, it can be directly on the other element, or can be indirectly on the other element with one or more intervening elements therebetween. Also, when an element is referred to as "connected to" another element, it can be directly connected to the other element, or can be indirectly connected to the other element with one or more intervening elements therebetween. Hereinafter, like reference numerals refer to like elements.

[0042] Unless the content requires, throughout the description below, the word "comprise" and variations of the same, such as "comprising" or "comprises", will be understood in an open, inclusive sense, that is as "including, but not limited to".

[0043] "Plural" appearing in the present application refers to two or more (including two), and similarly, "plural groups" refers to two or more groups (including two groups).

[0044] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0045] In the process of forming the present application, the inventors found that in the related art, the box panel is often set as a strip-shaped plate or a trapezoidal plate, so that when the battery pack is installed, one end of the installation box panel needs to occupy a regular space, and when the installation part has a special-shaped structure on the side corresponding to one end of the box panel, the space at this place is not enough to arrange the box panel, so the battery pack needs to avoid the special-shaped structure as a whole, thereby causing the battery pack to occupy more installation space.

[0046] Therefore, the present application proposes a battery pack, the box panel is arranged at the front end of the box, including a panel main body and a notched structure connected to the panel main body, the notched structure is recessed to the rear side, which is beneficial to avoid the special-shaped structure of one end of the box panel arranged in the battery installation space of the battery pack, thereby making the battery pack have better adaptability to the battery installation space, or being beneficial to make the battery pack provide higher energy density in the same battery installation space.

[0047] Further, the present application also proposes a power-consuming device comprising the battery pack.

[0048] The battery pack is configured to provide electric energy to the power-consuming device. The power-consuming device can be, but is not limited to, a mobile phone, a portable device, a notebook computer, an electric vehicle, an electric vehicle, a ship, a spacecraft, an electric toy, and an electric tool, etc. For example, the spacecraft includes an airplane, a rocket, a space shuttle, a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, and an electric plane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer.

[0049] The battery pack refers to a single physical module including one or more battery monomers to provide higher voltage and capacity. The battery pack generally includes a box for packaging one or more battery monomers. The box can avoid the influence of liquid or other foreign matters on the charging or discharging of the battery monomers.

[0050] A battery pack is a single physical module composed of multiple battery cells connected in series or in parallel, which can provide higher voltage and capacity. A battery pack can be in the form of a battery module. A battery module is a unit including multiple battery cells for providing higher voltage and capacity. By connecting battery cells in parallel or in series to form a battery pack, a battery module can meet the power needs of different applications. Connecting battery cells in series can increase the total voltage, while connecting battery cells in parallel can increase the total capacity. A battery module usually also includes a protection structure for protecting multiple battery cells. The protection structure is used to protect the battery pack from external damage. The protection structure, for example, includes two side plates respectively arranged on both sides of the battery pack and two end plates respectively arranged at both ends of the battery pack.

[0051] A battery cell refers to the smallest unit that makes up a battery. In this application, a battery cell can include a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc. The embodiments of the present application are not limited in this regard. A battery cell can be in the form of a flat body, a cuboid, or other shapes, etc. The embodiments of the present application are not limited in this regard. A battery cell is generally packaged as a square battery cell and a soft-pack battery cell, and the embodiments of the present application are not limited in this regard.

[0052] As shown in Figure 2 and Figure 7 , the battery pack B provided by the embodiments of the present application includes a box body 20, a battery pack, and a box panel 10. The battery pack is arranged in the box body 20. The box panel 10 includes a panel body 12 and a notched structure 11. The panel body 12 is fixedly connected to the front end of the box body 20. The notched structure 11 is connected with the panel body 12 and is recessed towards the rear side relative to the panel body 12. The panel body 12 includes two main plate segments 121 respectively arranged at the left and right ends of the notched structure 11.

[0053] By arranging the box panel 10 including the panel body 12 and the notched structure 11 and arranging the two main plate segments 121 at the left and right ends of the notched structure 11, the notched structure 11 is beneficial for avoiding the special-shaped structure of one end of the box panel 10 arranged in the battery installation space, thereby making the battery pack B have better adaptability to the battery installation space, or being beneficial for the battery pack B to provide higher energy density in the same battery installation space.

[0054] As shown in Figure 2 to Figure 6 , in some embodiments of the battery pack B, the notched structure 11 includes a notched back plate 111 and two notched side plates 112. The notched back plate 111 extends along the left-right direction. The notched side plates 112 extend along the front-rear direction. The rear ends of the two notched side plates 112 are respectively connected to the left and right ends of the notched back plate 111. The front ends of the two notched side plates 112 are fixedly connected with the panel body 12.

[0055] In the above-mentioned recessed structure 11, the recessed back plate 111 and the two recessed side plates 112 form a U-shaped structure. This U-shaped structure has the advantages of simple processing and manufacturing and high structural strength.

[0056] like Figure 2 and Figure 3 As shown, in some embodiments, the battery pack B also includes a heat exchange section and a fluid infusion line 40. The heat exchange section is configured to regulate the temperature of the battery pack. The fluid infusion line 40 is connected to the heat exchange section and is disposed within the recessed structure 11.

[0057] By placing the infusion tubing 40 within the recessed structure 11, the installation space between the housing panel 10 and the housing 20 is avoided, as is the additional space on the front side of the panel body 12. This makes the internal layout of the battery pack B more reasonable and the structure more compact, which helps to improve the space utilization of the battery pack B and thus improve the energy density of the battery pack B.

[0058] like Figure 2 to Figure 6 As shown, in some embodiments of the battery pack B, the housing panel 10 also includes a connecting platform 13. The connecting platform 13 is connected to the lower side of the recessed structure 11. The connecting platform 13 is provided with a mounting hole 131. The infusion pipeline 40 is fixed on the connecting platform 13 and communicates with the mounting hole 131. The mounting hole 131 communicates with the heat exchange section.

[0059] By providing the connecting platform 13 and the mounting hole 131 on the connecting platform 13, the connecting platform 13 can serve as a component for fixing the infusion pipeline 40, and it can also form part of the infusion line, which simplifies the assembly process. In addition, the design of the connecting platform 13 and the mounting hole 131 reduces the risk of damage to the infusion pipeline 40 from external impacts, thereby improving the safety of the battery pack B.

[0060] like Figure 2 to Figure 6 As shown, in some embodiments of the battery pack B, the housing panel 10 includes two connecting platforms 13 arranged at intervals along the left-right direction. Two infusion lines 40 are respectively fixed to the two connecting platforms 13.

[0061] One of the two infusion lines 40 is used to supply heat exchange medium to the heat exchange section, and the other is used to receive heat exchange medium from the heat exchange section. By providing two connecting platforms 13 spaced apart in the left-right direction, it is advantageous to avoid the structure within the battery mounting space through the gap between the two connecting platforms 13.

[0062] like Figure 2 to Figure 6 As shown, in some embodiments of the battery pack B, the housing panel 10 further includes at least one mounting surface S, which is disposed at the edge of the housing panel 10 and configured to be sealed to the housing 20 and / or the cover 30 of the battery pack B.

[0063] By setting the mounting surface S at the edge of the box panel 10 and sealingly connecting the box panel 10 with the box 20 and / or the lid 30 of the battery pack B, the reliability of the equipment mounting space sealing is improved. In addition, the design of the mounting surface S also facilitates the disassembly and reinstallation during subsequent maintenance of the battery pack B, thereby reducing maintenance costs and shortening maintenance time.

[0064] In some embodiments of the battery pack B, the battery pack B comprises a sealing structure arranged between the mounting surface S and the box 20 and / or the lid 30.

[0065] By arranging the sealing structure between the mounting surface S and the box 20 and / or the lid 30, the sealing of the box panel 10 with the box 20 and / or the lid 30 is achieved, thereby preventing impurities such as dust and moisture from entering the inside of the equipment mounting space, and further improving the service life of the battery pack B. In some embodiments, the sealing structure is a gasket, a sealing ring, or a sealing strip, etc. If necessary, two or more levels of sealing structures can be arranged between the same mounting surface S and the box 20 and / or the lid 30 to improve the reliability of the equipment mounting space sealing. When multiple levels of sealing structures are arranged at the same position, the multiple levels of sealing structures can be the same kind of sealing structure or different kinds of sealing structure.

[0066] In some embodiments of the battery pack B, the box panel 10 is an integrally formed die casting.

[0067] The box panel 10 adopts the form of an integrally formed die casting, which reduces assembly complexity and simplifies production procedures. In addition, die casting integrally formed can achieve higher structural strength and dimensional accuracy, and reduce the joint defects caused by traditional welding or splicing processes, thereby facilitating the improvement of the sealing performance of the battery pack B.

[0068] The embodiments of the present application also provide an electric equipment comprising the battery pack B of the embodiments of the present application, and the battery pack B is configured to provide electric energy for the electric equipment D.

[0069] The electric equipment D provided by the embodiments of the present application has the same advantages as the battery pack B provided by the embodiments of the present application.

[0070] In some embodiments of the electric equipment D, the electric equipment D comprises a vehicle, and the shape of the box panel 10 is adapted to the shape of the chassis of the vehicle.

[0071] By setting the shape of the box panel 10 to be adapted to the shape of the chassis of the vehicle, the internal space of the vehicle can be fully utilized, thereby facilitating the optimization of the space layout of the vehicle and improving the space utilization rate of the vehicle.

[0072] The following will be described in detail Figure 1 to Figure 7 The battery pack B and the electric equipment D comprising the battery pack B of some embodiments of the present application will be described in more detail.

[0073] Figure 1 This is a schematic diagram of the structure of electrical equipment D—a vehicle—provided in some embodiments of this application. The vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended vehicles, etc. Figure 1 The vehicle has a battery pack B installed inside, which can be located at the bottom, front, or rear of the vehicle. Battery pack B can be used to power the vehicle, for example, as its operating power source.

[0074] In some embodiments of this application, battery pack B can not only serve as the operating power source for the vehicle, but also as the driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0075] In this embodiment, the shape of the box panel 10 is adapted to the shape of the vehicle chassis.

[0076] like Figure 2 to Figure 7 As shown, battery pack B includes a housing 20, a battery pack (not shown), a housing panel 10, a heat exchange section (not shown), an infusion line 40, and a sealing structure (not shown).

[0077] The battery pack is housed within the casing 20. The heat exchange section is a heat exchange plate with internal heat exchange channels communicating with the infusion pipeline, located at the bottom of the casing 20, below the battery pack. The heat exchange plate receives heat exchange medium through one of two infusion pipelines 40 into the heat exchange channels within the plate, while the other pipeline receives heat exchange medium from the heat exchange channels within the plate. This allows the heat exchange medium to exchange heat with the battery pack, regulating the battery pack's temperature.

[0078] The enclosure panel 10 is fixedly connected to the front end of the enclosure 20. The enclosure panel 10 includes a recessed structure 11, a panel body 12, a connecting platform 13, and a mounting surface S.

[0079] The panel body 12 is fixedly connected to the front end of the housing 20. The panel body 12 includes two main board segments 121 respectively disposed at the left and right ends of the recess structure 11. Both main board segments 121 extend in the left-right direction.

[0080] The recessed structure 11 is connected to the panel body 12 and is recessed towards the rear side relative to the panel body 12. The recessed structure 11 includes a recessed back plate 111 and two recessed side plates 112. The recessed back plate 111 extends in the left-right direction. The recessed side plates 112 extend in the front-back direction. The rear ends of the two recessed side plates 112 are respectively connected to the left and right ends of the recessed back plate 111. The front ends of the two recessed side plates 112 are respectively fixedly connected to the two main plate segments 121 of the panel body 12. The two recessed side plates 112 and the recessed back plate 111 are connected to form a U-shaped structure.

[0081] Two connecting platforms 13 are spaced apart in the left-right direction and connected to the inner lower side of the notch structure 11, each connecting platform 13 being connected with the notch back plate 111 and one notch side plate 112. Each connecting platform 13 is provided with a mounting hole 131. Two infusion pipelines 40 are fixed on the two connecting platforms 13 respectively, each infusion pipeline 40 being in communication with the corresponding mounting hole 131, so as to be in communication with the heat exchange plate through the mounting hole 131.

[0082] The top edge of the box panel 10 is provided with a mounting surface S matched with the box cover 30, and the rear edge of the box panel 10 is provided with a mounting surface S matched with the box body 20, each mounting surface being sealingly connected with the box cover 30 and the box body 20 through a sealing structure. In some embodiments, the sealing structure is made of a material with high elasticity, such as rubber or other elastic materials. The thickness and shape of the sealing structure can be adjusted according to the specific requirements of the battery pack B to provide sufficient sealing in different working conditions. In some embodiments, the sealing structure is a sealing gasket, a sealing ring, or a sealing rubber strip, etc.

[0083] In this embodiment, the box panel 10 is an integrally formed die casting. In some embodiments, the box panel 10 can be made of a metal material, such as aluminum. The metal material has the advantages of easy molding and convenient processing.

[0084] In the related art, the box panel is generally formed by profiled material welding, and the box panel formed by profiled material welding structure has problems of low space utilization, redundant structure, and the like, and is difficult to meet the complex installation requirements of the vehicle chassis. At the same time, the profiled material welding process inevitably has disadvantages of many welds, poor sealing, and the like, which affect the waterproof and dustproof performance of the battery pack. The box panel is provided as an integrally formed die casting, has high forming precision, fast production efficiency, and can form a complex structure, especially when the electrical equipment is a vehicle, the box panel is easy to design and adapt to the special-shaped structure of the vehicle chassis. Under the premise of ensuring to meet the installation requirements of the electrical, thermal management and other system equipment and components inside the battery pack, the box panel is maximally fitted to the shape of the vehicle chassis, realizes good docking of the battery pack and the vehicle chassis, and is beneficial to improving the integration of the vehicle. Compared with the battery pack in the related art, the box panel effectively reduces the occupied space. Through optimization design, the redundant structure can be removed, more effective space is left for the core battery pack inside the battery pack, and favorable conditions are created for improving the energy density of the battery pack. The box panel in the form of die casting effectively reduces the number of parts and connecting structures, also reduces the overall weight of the box panel and the battery pack, and reduces the leakage points of the box panel itself, which is beneficial to improving the air tightness of the battery pack, effectively ensuring the safety and stability of the electrical system inside the battery pack, and reducing the risk of battery pack failure caused by water vapor and dust intrusion. Those skilled in the art can understand that in the above method of the specific embodiments, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process, and the specific execution order of each step should be determined by its function and possible internal logic.

[0085] The above description of the various embodiments tends to emphasize differences between the various embodiments, and the same or similar parts can be referred to each other, and for brevity, will not be repeated here.

[0086] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific implementation of the present application can be modified or some technical features can be replaced by equivalent, which should be covered in the technical solution range claimed by the present application.

Claims

1. A battery pack (B), characterized in that, include: Box (20); The battery pack is housed in the housing (20); and Box panel (10); The enclosure panel (10) includes: The panel body (12) is fixedly connected to the front end of the housing (20); and The recessed structure (11) is connected to the panel body (12) and is recessed towards the rear side relative to the panel body (12). The panel body (12) includes two main board segments (121) respectively disposed at the left and right ends of the recessed structure (11).

2. The battery pack (B) according to claim 1, characterized in that, The notch structure (11) includes: The notched back plate (111) extends in the left-right direction; and Two recessed side plates (112) extend in the front-to-back direction. The rear ends of the two recessed side plates (112) are respectively connected to the left and right ends of the recessed back plate (111). The front ends of the two recessed side plates (112) are fixedly connected to the panel body (12).

3. The battery pack (B) according to claim 1, characterized in that, Also includes: The heat exchange section is configured to regulate the temperature of the battery pack; and An infusion line (40) is connected to the heat exchange section, and the infusion line (40) is disposed within the recessed structure (11).

4. The battery pack (B) according to claim 3, characterized in that, The box panel (10) also includes a connecting platform (13), which is connected to the lower side of the recessed structure (11). The connecting platform (13) is provided with a mounting hole (131). The infusion pipeline (40) is fixed on the connecting platform (13) and communicates with the mounting hole (131). The mounting hole (131) communicates with the heat exchange section.

5. The battery pack (B) according to claim 4, characterized in that, The housing panel (10) includes two connecting platforms (13) arranged at intervals in the left-right direction; The two infusion lines (40) are respectively fixed on the two connecting platforms (13).

6. The battery pack (B) according to claim 1, characterized in that, The enclosure panel (10) also includes at least one mounting surface (S) disposed at the edge of the enclosure panel (10) and configured to be sealed to the enclosure (20) and / or the cover (30) of the battery pack (B).

7. The battery pack (B) according to claim 6, characterized in that, Includes a sealing structure disposed between the mounting surface (S) and the housing (20) and / or the housing cover (30).

8. The battery pack (B) according to any one of claims 1 to 7, characterized in that, The box panel (10) is a die-cast part formed in one piece.

9. An electrical appliance (D), characterized in that, Includes the battery pack (B) according to any one of claims 1 to 8, wherein the battery pack (B) is configured to provide electrical power to the electrical device (D).

10. The electrical equipment (D) according to claim 9, characterized in that, The electrical equipment (D) includes a vehicle, and the shape of the housing panel (10) is adapted to the shape of the vehicle chassis.

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