Box, battery and electrical device

Abstract

The present application relates to a box, a battery and an electrical device. The box (10) has a housing cavity (s) for housing a battery cell (20) and a top surface (h) facing away from the housing cavity (s); the top surface (h) of the box is formed with a first area (ha), a second area (hb) and a sealing area (hc) located therebetween; the sealing area (hc) surrounds the first area (ha); the sealing area (hc) is used to install a sealing member (12); the second area (hb) is configured with a mounting portion (13a3); and the battery (100) is mounted on an external device via the mounting portion (13a3) so that the sealing member (12) contacts the external device; wherein the sealing area (hc) and the second area (hb) are coplanar.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a box, a battery and an electrical device. Background Art

[0002] As new energy technologies become more mature, new energy vehicles are gradually entering the public eye. The core technology of new energy vehicles lies in batteries, and the safety and stability of batteries directly determine the performance of the entire vehicle.

[0003] A vehicle usually includes a body and a battery mounted on the body. The battery usually includes a box and battery cells installed in the box. Loading the box on the body will cause the battery and the body to be subjected to multi-directional forces, thereby reducing the rigidity and lateral compression capacity of the entire vehicle. Summary of the invention

[0004] In view of this, the present application provides a battery and an electrical device, which aims to reduce the force transmission path between the battery and the vehicle body, thereby improving the height and lateral extrusion resistance of the entire vehicle.

[0005] In the first aspect, the present application provides a box body, which has a accommodating cavity for accommodating a battery cell and a top surface facing away from the accommodating cavity; the top surface of the box body is formed with a first area, a second area and a sealing area located therebetween, the sealing area surrounds the first area, the sealing area is used to install a seal, the second area is constructed with a mounting portion, and the battery is mounted on an external device through the mounting portion and the seal is in contact with the external device; wherein the sealing area is coplanar with the second area to ensure that the mounting force point of each mounting portion is located in the same plane and at the same height as the sealing area, and the mounting force point and the seal are both subjected to vertical force bearing, thereby reducing the lateral structural force of the box body and improving the vehicle rigidity.

[0006] In some embodiments, the first area, the second area and the sealing area are coplanar, and the plane where the first area, the second area and the sealing area are coplanar contacts the external device, and the contact area between the top surface of the box and the external device is large, which helps to improve the connection reliability between the box and the external device, and the top structure of the box is relatively flat and more beautiful, and further reduces the lateral structural force of the box.

[0007] In some embodiments, the mounting portion includes at least one mounting hole disposed on the top of the box, and the mounting hole passes through the second area. When the box is connected to an external device, the connector can be connected to the top of the box from the second area on the outer side of the top of the box to improve the connection strength between the box and the external device.

[0008] In some embodiments, the box body further includes a seal, which is installed in the sealing area. In this case, the box body of the battery is sealed and connected to the external device through the seal, and the first area and the second area are sealed and isolated, so that the sealing is reliable and the cost is low.

[0009] In some embodiments, the box includes a main body, the main body encloses a receiving cavity, the top surface of the main body defines at least a portion of the top surface of the box, and the first area and the sealing area are located on the top surface of the main body.

[0010] The top surface of the main body is divided into a first area and a sealing area surrounded by the first area. The first area can form a sealed vehicle body interior to ensure a sealed connection between the vehicle body and the main body.

[0011] In some embodiments, the box includes a lateral beam, the main body has a circumferential side wall arranged around the outer edge of the top, the lateral beam is arranged on the circumferential side wall, and the top surface of the main body and the top surface of the lateral beam jointly define the top surface of the box. The lateral beam is arranged on the lateral circumferential wall of the main body, and the lateral structural strength of the main body can be strengthened by the lateral beam, thereby improving the lateral anti-extrusion ability of the box, and also improving the lateral anti-extrusion ability of the vehicle.

[0012] In some embodiments, the mounting portion is located in the second area defined by the top surface of the lateral beam. The mounting portion is arranged on the lateral beam. Since the lateral beam does not define the accommodating cavity, it is not necessary to consider the effect of the mounting portion on the sealing of the accommodating cavity when arranging the mounting portion, and the arrangement of the mounting portion is more flexible. Moreover, the lateral beam is located at the lateral edge of the box body. In this case, the mounting portion is arranged on the lateral beam, which provides a larger operating space and is more convenient when the box body is installed on an external device.

[0013] In some embodiments, a reserved distance exists between an outer edge of the sealing area close to the second region and a circumferential side wall of the main body.

[0014] A reserved distance is set between the outer edge of the sealing area close to the second area and the axial side wall of the main body, which can reserve sufficient deformation space for the deformation of the seal and prevent the seal from overflowing over the top surface of the main body to other areas on the top of the box and interfering with structures in other areas.

[0015] In some embodiments, the lateral beam includes at least two sub-beams, which are arranged in sequence along the circumferential side wall at intervals, and the top surface of each sub-beam defines a part of the top surface of the lateral beam; the sub-beam is provided with a mounting portion.

[0016] The arrangement of the sub-beams improves the lateral extrusion capacity of the vehicle and the safety performance of the vehicle, and mounting parts can be arranged on the symmetrically arranged sub-beams to ensure uniform force of the mounting parts.

[0017] In some embodiments, the main body includes a supporting member and a frame, the frame encloses a cavity with at least the top thereof penetrating therethrough, the supporting member covers the top of the cavity, and the supporting member and the frame enclose at least a portion of the accommodating cavity; the lateral beams are arranged on the circumferential side walls defined by the frame.

[0018] In this way, a mounting base is formed to load the battery cells and the lateral beams.

[0019] In a second aspect, the present application further provides a battery, comprising the above-mentioned box body and a battery cell, wherein the battery cell is accommodated in the box body.

[0020] In some embodiments, the box includes a main body, the main body encloses a receiving cavity, the main body includes a carrier located at the top of the box and used to define the receiving cavity, and the battery cell is arranged on the carrier. The battery cell is arranged below the carrier and bears the force on the top of the battery box together with the carrier, thereby improving the rigidity of the top of the battery box.

[0021] In some embodiments, the battery cells are suspended on the carrier, the battery cells are suspended below the carrier, and the bottom cover is located at the bottom of the box body. When the battery is repaired inside, the battery cells can be exposed by removing the bottom cover without removing the carrier, which makes the battery maintenance more convenient. At the same time, when repairing the battery, the battery cells can be removed from the bottom and installed on the carrier, especially when the carrier is at least a part of the vehicle chassis and is subjected to force, it is only necessary to remove the battery cells from the bottom of the carrier without removing the carrier, which facilitates the maintenance of the battery.

[0022] In some embodiments, the battery cells are bonded to the carrier, and the battery cells are bonded to the carrier, which not only facilitates the connection but also simplifies the structure of the battery.

[0023] In some embodiments, the outer surface of the battery cell facing the carrier is the first outer surface, and the battery cell includes an electrode terminal, which is arranged on the outer surface of the battery cell other than the first outer surface. In this case, the electrode terminal is located on the outer surface of the battery cell other than the first outer surface, and various components (such as sampling harness, high-voltage harness, protective structure, etc.) connected to each electrode terminal can be arranged through the space between the battery cell and the bottom cover and / or the space between the battery cell and the inner side of the main body, which is more convenient for the arrangement of various components. Moreover, in this case, by connecting the first outer surface without the electrode terminal to the carrier, the battery cell and the carrier can be fitted, which can save the space between the battery cell and the carrier and improve the space utilization of the battery.

[0024] In some embodiments, the battery cell has a second outer surface disposed opposite to the first outer surface, and the electrode terminal is arranged on the second outer surface. In this case, there is a buffer space between the second outer surface and the bottom cover, and the portion of the electrode terminal extending outside the battery cell is located in the buffer space, so that the wiring harness and the connecting piece connected to the electrode terminal can be arranged in the buffer space. At the same time, the buffer space can also block the external force hitting the bottom cover from acting on the battery cell and damaging the battery cell. Therefore, the buffer space can not only interrupt the influence of external force, but also arrange the wiring harness, etc., killing two birds with one stone.

[0025] In a third aspect, the present application also provides an electrical device, comprising the above-mentioned battery, and the battery is used to provide electrical energy to the electrical device.

[0026] In some embodiments, the electric device includes a vehicle, and the battery is arranged at the bottom of the vehicle body. In this case, the battery is arranged at the bottom of the vehicle body, which does not occupy the space inside the vehicle body and helps to reduce the volume and weight of the vehicle body.

[0027] In some embodiments, the battery is connected to the vehicle body via the top of the box, and the top of the box is configured to form at least a portion of the vehicle body chassis. In this case, the space occupied by the gap between the traditional chassis and the battery can be divided into the battery space for increasing the battery, which helps to increase the energy of the battery and thus improve the endurance of the vehicle.

[0028] The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0030] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0031] Figure 2 A schematic diagram of the structure of a battery cell provided in some embodiments of the present application;

[0032] Figure 3 An exploded schematic diagram of a battery provided in some embodiments of the present application;

[0033] Figure 4 Another structural exploded view of a battery in some embodiments of the present application;

[0034] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0035] Figure 6 A schematic diagram of a partial structure of a battery in some embodiments of the present application;

[0036] Figure 7 for Figure 6 An enlarged view of point B in the structure shown;

[0037] Figure 8 for Figure 6a top view of the structure;

[0038] Fig. 9 for Figure 6 a side view of the structure;

[0039] Fig.10 for Fig. 9 A cross-sectional view of the structure shown at CC;

[0040] Fig.11 Schematic diagram of the partial structure of batteries in other embodiments of the present application;

[0041] Fig.12 for Fig.11 An exploded view of a side view of the structure shown;

[0042] Fig.13 for Fig.11 a side view of the structure;

[0043] Fig.14 for Fig.12 An enlarged view of the structure shown at D;

[0044] Fig.15 for Fig.11 Schematic diagram of application scenarios of the structure shown;

[0045] Fig.16 for Fig.14 a side view of the structure shown;

[0046] Fig.17 Schematic diagram of the partial structure of batteries in other embodiments of the present application;

[0047] Fig.18 for Fig.17 a side view of the structure shown;

[0048] Fig.19 for Fig.18 An exploded view of the structure;

[0049] Fig. 20 for Fig.18 A cross-sectional view at EE of the structure shown;

[0050] Fig.21 for Fig.17 a top view of the structure shown;

[0051] Fig. 22 It is a schematic diagram of the structure of a battery cell in some embodiments of the present application.

[0052] 1000, vehicle; 100, battery; 200, vehicle body; 300, seat; 10, box; 10A, first part; 10B, second part; 11, main body; 11a, bearing member; 11b, frame; 11c, bottom cover; 11c1, cover; 11c2, mounting portion; 11c3, fixing hole; 11c4, fixing member; n, circumferential side wall; n1, first wall segment; n2, second wall segment; s, accommodating chamber; s1, battery chamber; s2, high-pressure chamber; 12, sealing member; 13, lateral beam; 13a, sub-beam; 13a1, first sub-beam; 13a2, second sub-beam; 131, upper arm beam; 132, lower arm beam; 13a3, mounting portion; k1, mounting hole; 13a4, wiring portion; k 2. Wiring trough; 14. Side impact reinforcement beam; 141. Mounting beam; 141a. Protrusion; 141a1. Weight reduction channel; 141b. Mounting position; h. Top surface of the box; h1. Top surface of the main body; h2. Top surface of the lateral beam; ha. First area; hb. Second area; hc. Sealing area; 15. High-pressure chamber; 15a. Chamber cover; 15b. Chamber box; 16. Middle channel beam; 16a. Wiring channel; 16a1. Wire trough; 161. Beam seat; 162. Beam cover; 20. Battery cell; 21. End cover; 21a. Electrode terminal; 22. Shell; 23. Electrode assembly; m1. First outer surface; m2. Second outer surface; m3. Third outer surface; F1. First direction; F2. Second direction. DETAILED DESCRIPTION

[0053] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0055] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0056] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0057] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0058] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0059] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0060] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0061] At present, from the perspective of market development, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.

[0062] The inventors of the present invention have noticed that when the battery box is connected to the vehicle body, there may be connection stress points in various directions. Due to the mutuality of forces, the battery box and the vehicle body will be subjected to stress in multiple directions, which reduces the rigidity and lateral extrusion capacity of the entire vehicle.

[0063] In order to improve the rigidity and lateral extrusion capacity of the whole vehicle, the applicant has found that the top of the box can be set as multiple areas, one part of which is sealed with the vehicle body, and the other part of which is fixedly connected with the vehicle body, and the force-bearing directions of the sealed connection and the fixed connection are the same, for example, both are along the vertical direction perpendicular to the top of the box, thereby reducing the force on the box and the vehicle body in other directions, thereby reducing the lateral structural force of the box and the vehicle and improving the overall rigidity.

[0064] Based on the above considerations, in order to improve the rigidity of the whole vehicle and the lateral extrusion capacity, the inventors have designed a box body for batteries after in-depth research, which can accommodate battery cells inside. The box body has a top surface facing away from the accommodating cavity, and the top surface is divided into a first area, a sealing area and a second area. The sealing area is used to install a seal and the seal is in sealing contact with the vehicle body. The second area is structured to form a mounting portion and is fixedly connected to the vehicle body through the mounting portion, and the sealing area is coplanar with the second area to ensure that the mounting force point of each mounting portion is located in the same plane and at the same height as the sealing area, and the mounting force point and the seal are both subjected to vertical force, so that the box body and the vehicle body are only subjected to vertical force.

[0065] The battery disclosed in the embodiment of the present application can be used in, but not limited to, electrical devices such as vehicles, ships or aircraft. The battery disclosed in the present application can be used to form a power supply system of the electrical device. The installation body involved in the present application is a structure for installing a battery in an electrical device.

[0066] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0067] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0068] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller and a motor, and the controller is used to control the battery 100 to power the motor, for example, for starting, navigating and driving the vehicle 1000.

[0069] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0070] Please refer to Figure 2 , Figure 2 The schematic diagram of the structure of the vehicle 1000 provided in some embodiments of the present application. The battery cell 20 refers to the smallest unit constituting the battery 100. Figure 2 As shown, the battery cell 20 includes an end cap 21, a housing 22, an electrode assembly 23 and other functional components.

[0071] The end cap 21 refers to a component that covers the opening of the shell 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 can be adapted to the shape of the shell 22 to match the shell 22. Optionally, the end cap 21 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 21 is not easily deformed when squeezed and collided, so that the battery cell 20 can have a higher structural strength and safety can also be improved. Functional components such as electrode terminals 21a can be provided on the end cap 21. The electrode terminal 21a can be used to electrically connect to the electrode assembly 23 for outputting or inputting electrical energy of the battery cell 20. In some embodiments, the end cap 21 can also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The material of the end cap 21 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose special restrictions on this. In some embodiments, an insulating member may be provided inside the end cap 21 to isolate the electrical connection portion 11a2 in the housing 22 from the end cap 21 to reduce the risk of short circuit. For example, the insulating member may be plastic, rubber, or the like.

[0072] The shell 22 is a component used to cooperate with the end cap 21 to form the internal environment of the battery cell 20, wherein the formed internal environment can be used to accommodate the electrode assembly 23, the electrolyte and other components. The shell 22 and the end cap 21 can be independent components, and an opening can be set on the shell 22, and the internal environment of the battery cell 20 is formed by covering the opening with the end cap 21 at the opening. Without limitation, the end cap 21 and the shell 22 can also be integrated. Specifically, the end cap 21 and the shell 22 can form a common connection surface before other components are put into the shell, and when the interior of the shell 22 needs to be encapsulated, the end cap 21 covers the shell 22. The shell 22 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 22 can be determined according to the specific shape and size of the electrode assembly 23. The material of the shell 22 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0073] The electrode assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more electrode assemblies 23 may be included in the housing 22. The electrode assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body 11 of the electrode assembly 23, and the parts of the positive and negative electrode sheets without active materials each constitute. The positive electrode tab and the negative electrode tab may be located together at one end of the main body 11 or respectively at both ends of the main body 11. During the charge and discharge process of the battery, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tabs connect the electrode terminals 21a to form a current loop.

[0074] Figure 3 This is a schematic diagram of an exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a battery cell 20 and a box body 10 . The box body 10 has a receiving cavity s for receiving the battery cell 20 .

[0075] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. Multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module in which multiple battery cells 20 are first connected in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery 100 may also include other structures. For example, the battery 100 may also include a confluence component for realizing electrical connection between multiple battery cells 20. Each battery cell 20 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0076] The box body 10 can be in various shapes, such as a cylinder, a cuboid, etc., and the specific structure of the box body 10 can adopt various structural modes.

[0077] According to some embodiments of this application, please refer to Figure 3 The present application provides a box 10 for a battery 200, wherein the box 10 has a receiving cavity s for receiving a battery cell 20. The box 10 is used to provide a receiving space for the battery cell 20, and the box can adopt a variety of structures. In some embodiments (such as Figure 3 As shown in the figure, the box body may include a first part 10A and a second part 10B, the first part 10A and the second part 10B cover each other, and the first part 10A and the second part 10B jointly define a storage space for accommodating battery cells. The second part 1 may be a hollow structure with one end open, and the first part 10A may be a plate-like structure, and the first part 10A covers the open side of the second part, so that the first part 10A and the second part 10B jointly define a storage space; the first part 10A and the second part 10B may also be hollow structures with one side open, and the open side of the first part 10A covers the open side of the second part 10B. Of course, the box body 10 formed by the first part 10A and the second part 10B may be in various shapes, such as a cylinder, a cuboid, etc.

[0078] Figure 4 This is another structural exploded view of the battery 100 in some embodiments of the present application. Figure 5 for Figure 4 Enlarged view of point A in the middle. Figure 6 It is a schematic diagram of the partial structure of the battery 100 in some embodiments of the present application. Figure 7 for Figure 6 The enlarged view of the structure at B is shown. Figure 8 for Figure 6A top view of the structure, Fig. 9 for Figure 6 A side view of the structure, Fig.10 for Fig. 9 A cross-sectional view of the structure shown at CC.

[0079] In some embodiments, please refer to Figure 4 The battery 100 is installed on an external device via the top of the box 10 .

[0080] The top of the box body 10 includes the top surface h of the box body 10 and other structures arranged on the top surface h of the box body 10. The top surface h of the box body 10 refers to the upper side surface of the box body 10 in the vertical direction when in use. Other structures arranged on the top surface h of the box body 10 include but are not limited to connecting parts (such as bolts, rivets, etc.) connecting the top surface h of the box body 10 and external devices, and sealing structures (such as sealing strips, etc.) that seal the box body 10 and external devices.

[0081] The external device refers to a device for installing the box 10. The external device may be a partial structure of the above-mentioned electrical device for installing the box 10, or may be the remaining structure of the electrical device that forms the electrical device together with the battery 100. Taking the electrical device as a vehicle 1000 as an example, the external device may be the body 200 of the vehicle 1000, and the battery 100 may be installed at the bottom of the body 200 and mounted on the body 200 via the top thereof.

[0082] At this time, the battery 100 is installed on the external device through the top of the box 10. Compared with the arrangement in which the box 10 is located at the bottom of the external device, the connection structure between the box 10 and the external device has a smaller size, lower cost and is more compact.

[0083] Of course, in other embodiments, the battery 100 may also be installed on an external device via the bottom, side, etc. of the box body 10 .

[0084] In some embodiments, please refer to Figure 4 The box body 10 includes a main body 11, and the main body 11 encloses a receiving cavity s.

[0085] The main body 11 can be an integrally formed structure, or it can be formed by assembling a plurality of parts. Understandably, the main body 11 is a hollow shell-like structure, which itself encloses a receiving cavity s. Specifically, without limitation, the main body 11 can be formed by assembling a first sub-section (not shown) and a second sub-section (not shown). In one example, the first sub-section encloses a receiving cavity s with an open end, and the second sub-section covers the open portion of the receiving cavity s. In another example, the first sub-section encloses a first space with an open end, and the second sub-section encloses a second space with an open end, and the two open portions of the first sub-section and the second sub-section cover each other to form a receiving cavity s consisting of the first space and the second space. The first sub-section and the second sub-section can be welded, clamped, fastened, etc. The first sub-section and the second sub-section can be made of plastic, metal, or other materials.

[0086] In some embodiments, please refer to Figure 4 The top of the main body 11 forms at least a part of the top of the box body 10.

[0087] The top of the main body 11 refers to the structure located at the uppermost position of the main body 11 in the vertical direction. The uppermost position of the main body 11 is the uppermost position of the box body 10, so that the top of the main body 11 forms at least a part of the top of the box body 10. When the top of the main body 11 forms the entire top of the box body 10, the top of the main body 11 is the top of the box body 10, and the entire top of the box body 10 participates in the definition of the accommodating cavity s. When the top of the main body 11 forms a part of the top of the box body 10, the top of the box body 10 also has another part of the structure that does not participate in the definition of the accommodating cavity s, such as the lateral beam 13 described below, which will be described in detail below.

[0088] When the battery 100 is installed on an external device via the top of the box 10, the top of the main body 11 is also located at the position of the battery 100 that is closest to the external device. The distance between the top of the main body 11 and the external device refers to the distance between the highest point of the top of the main body 11 and the external device located above it in the vertical direction.

[0089] Understandably, please refer to Figure 6 The main body 11 has a circumferential side wall n arranged around the top outer edge of the main body 11.

[0090] The main body 11 has a top at the uppermost position in the vertical direction, and naturally also has a bottom at the lowermost position, wherein the bottom may be a bottom surface and a structure arranged on the bottom surface, or a bottom opening.

[0091] The outer surface of the structure sandwiched between the top and the bottom facing away from the accommodation cavity s forms a circumferential side wall n, and the extension direction of the plane where the circumferential side wall n is located intersects with the plane where the top is located. The circumferential side wall n can be a ring, a quadrilateral shape, etc. formed by connecting multiple wall segments end to end, as described below.

[0092] Understandably, please refer to Figure 6 The box body 10 also has a top surface h facing away from the accommodating cavity s.

[0093] The top surface h of the box body 10 is located on the surface of the top side of the box body 10 facing away from the accommodating cavity s. When the battery 100 is assembled to an external device through the top of the box body 10, the top surface h is arranged to face the external device and forms the position of the battery 100 that is closest to the external device.

[0094] In some embodiments, please refer to Figure 6 The top surface h of the housing 10 is configured to be in contact with an external device (not shown) on which the battery 100 is mounted.

[0095] The battery 100 is installed on the external device through the top of the box body 10, and the surface of the box body 10 facing away from the accommodating cavity s is in contact with the external device, so that the battery 100 is tightly connected to the external device. Compared with the arrangement in which the top surface h of the box body 10 does not contact the external device, the connection structure between the box body 10 and the external device is smaller in size, lower in cost and more compact.

[0096] In some embodiments, please refer to Figure 6 The top of the housing 10 is provided with a mounting portion 13a3, and the battery 100 is mounted on an external device via the mounting portion 13a3.

[0097] The mounting portion 13a3, as a part of the top of the box body 10, does not participate in the definition of the accommodating cavity s. The mounting portion 13a3 refers to a special structure provided on the top of the box body 10 for connecting with a connector (such as a bolt, a rivet, etc.) of an external device. One end of the connector can be connected to the mounting portion 13a3, and the other end can be connected to the external device to fix the battery 100 to the external device. It can be understood that the top of the main body 11 is at least a part of the top of the box body 10, and the mounting portion 13a3 can be provided on the top of the main body 11, or on other structures that form the top of the box body 10 (such as the top of the lateral beam 13 mentioned below).

[0098] When the battery 100 is mounted on an external device through the mounting portion 13a3, the top surface h of the box body 10 is in contact with the external device, which improves the connection strength and ensures the compactness of the connection structure between the box body 10 and the external device.

[0099] The mounting portion 13a3 may also have a connection function (such as a lifting ring, etc.), and a corresponding connector (such as a hook, etc.) may be provided on the external device to directly connect with the mounting portion 13a3. In other embodiments, a connector may not be provided, and the mounting portion 13a3 may be directly connected to the external device by other means, including but not limited to snap-on, plug-in, threaded connection, riveting, welding, bonding, etc., which are not specifically limited in this application.

[0100] The mounting portion 13a3, as a part of the top of the box body 10, does not participate in the definition of the accommodating cavity s. The mounting portion 13a3 refers to a special structure provided on the top of the box body 10 for connecting with a connector (such as a bolt, a rivet, etc.) of an external device. One end of the connector can be connected to the mounting portion 13a3, and the other end can be connected to the external device to fix the battery 100 to the external device. It can be understood that the top of the main body 11 is at least a part of the top of the box body 10, and the mounting portion 13a3 can be provided on the top of the main body 11, or on other structures that form the top of the box body 10 (such as the top of the lateral beam 13 mentioned below).

[0101] When the battery 100 is mounted on an external device through the mounting portion 13a3, the top surface h of the box body 10 is in contact with the external device, which improves the connection strength and ensures the compactness of the connection structure between the box body 10 and the external device.

[0102] The mounting portion 13a3 may also have a connection function (such as a lifting ring, etc.), and a corresponding connector (such as a hook, etc.) may be provided on the external device to directly connect with the mounting portion 13a3. In other embodiments, a connector may not be provided, and the mounting portion 13a3 may be directly connected to the external device by other means, including but not limited to snap-on, plug-in, threaded connection, riveting, welding, bonding, etc., which are not specifically limited in this application.

[0103] In some embodiments, please refer to Figure 6 The mounting portion 13a3 includes at least one mounting hole k1 disposed on the top of the box body 10 .

[0104] The mounting holes k1 can be formed on the top of the box body 10 by drilling. All mounting holes k1 have holes and openings connected to both ends of the holes. The holes and the openings connected to both ends of the holes allow the connector to pass through themselves and be fixed to the structure with the mounting holes k1, so that the external device is connected to the top of the box body 10 through the connector.

[0105] The connecting member can be set as a rivet, and a fixing hole 11c3 is set at the position of the external device corresponding to the mounting hole k1. After the rivet passes through the fixing hole 11c3 and the mounting hole k1, the two are fixed by a nut. The connecting member can also be set as a screw, and the mounting hole k1 is set as a threaded hole. The screw passes through the mounting hole k1 and is threaded to connect with the box body 10.

[0106] Specifically, all mounting holes k1 may be extended in the vertical direction to fix the battery 100 to the bottom of the external device in the vertical direction. It is understandable that in order to achieve the connection stability between the top of the box 10 and the external device and the uniformity of the force between the two, the setting position, setting distance and other factors of all mounting holes k1 may be controlled, as described below.

[0107] It is understandable that, in addition to the mounting hole k1, the mounting portion 13a3 may also include other structures capable of achieving mounting, such as a hook.

[0108] In some embodiments, please refer to Figure 4 and Figure 6 The main body 11 includes a carrier 11a and a frame 11b. The frame 11b encloses a cavity with at least the top thereof penetrating therethrough. The carrier 11a covers the top of the cavity. The carrier 11a and the frame 11b enclose at least a portion of the accommodating cavity s.

[0109] The frame 11b itself encloses a cavity that is at least penetrated by its top, and the carrier 11a covers the top of the cavity, that is, the carrier 11a is located at the top of the box body 10 and is used to define the accommodating cavity s. The frame 11b and the carrier 11a can be made of the same material, such as aluminum alloy, copper alloy, steel, plastic, etc. Of course, the frame 11b, the carrier 11a and the bottom cover 11c can also be made of different materials, which is not specifically limited. In the vertical projection, the frame 11b can be rectangular, circular, polygonal, etc., which is not specifically limited. The carrier 11a can be a structure such as a carrier plate, a carrier sheet, a carrier block, etc.

[0110] The top surface h1 of the main body 11 can be entirely formed by the top surface of the carrier 11a, in which case the frame 11b is entirely located below the carrier 11a. The top surface h1 of the main body 11 can also be jointly formed by the top surface of the carrier 11a and the top surface of the frame 11b, in which case the carrier 11a is located inside the frame 11b, and the top surface of the carrier 11a and the top surface of the frame 11b can be coplanar or non-coplanar.

[0111] The carrier 11a and the frame 11b are fixedly connected or integrally formed. The carrier 11a and the frame 11b are integrally formed by injection molding, die casting, forging, cold pressing, hot pressing, etc. The carrier 11a and the frame 11b can be fixedly connected by fastening members, clamping structures, welding, bonding, hot melting, etc.

[0112] The circumferential side wall n of the main body 11 is mainly formed by the circumferential side wall n of the frame 11 b . The circumferential side wall n of the frame 11 b is an outer surface disposed around the carrier 11 a and facing away from the cavity defined by the frame 11 b .

[0113] In some embodiments, please refer to Figure 4 and Figure 5 The main body 11 further includes a bottom cover 11 c , which together with the carrier 11 a and the frame 11 b form a receiving cavity s for receiving the battery cell 20 .

[0114] It is understandable that the cavity of the frame 11b also penetrates the bottom of the frame 11b, and the bottom cover 11c covers the bottom of the frame 11b and forms the accommodating cavity s of the box body 10 together with the frame 11b and the carrier 11a.

[0115] Specifically, the bottom cover 11c may be, but is not limited to, a plate-like structure, a block-like structure, etc., and may be a flat plate, a curved plate, etc. When the battery cell 20 is located in the accommodation cavity s, the battery cell 20 may be disposed on the bottom cover 11c and / or the carrier 11a and / or the frame 11b.

[0116] The bottom cover 11c and the frame 11b can be fixed by welding, hot-melt connection, bonding, fastening connection, snap connection and the like. The fastening connection refers to the connection achieved by the fixing member 11c4, and the fixing member 11c4 includes components such as bolts, latches, rivets, pins, screws, etc. The snap connection refers to the fixation achieved by a snap-fit ​​structure, for example, the bottom cover 11c has a hook, and the frame 11b has a bayonet, and when the hook is snapped into the bayonet, the bottom cover 11c and the frame 11b can be snap-fitted and fixed. Of course, the connection method between the bottom cover 11c and the frame 11b is not limited to this, and will not be exhaustively listed in this application.

[0117] At this time, based on the frame 11b, the carrier 11a and the bottom cover 11c are respectively connected to the two ends of the frame 11b in the vertical direction to form the accommodating cavity s of the battery 100, and the structure of the main body 11 is relatively simple.

[0118] In some embodiments, please refer to Figure 4 and Figure 5 The bottom cover 11c has a cover portion 11c1 and a mounting portion 11c2. The mounting portion 11c2 is connected to the edge of the cover portion 11c1. The cover portion 11c1 is used to define the accommodating cavity s. The mounting portion 11c2 is connected to the frame 11b.

[0119] The cover 11c1 is used to define the accommodating cavity s, which means that the cover 11c1, the carrier 11a, and the frame 11b together enclose the accommodating cavity s, and the mounting portion 11c2 is connected to the frame 11b, but does not participate in the definition of the accommodating cavity s. The cover 11c1 can be a plate-shaped or block-shaped component, a flat plate-shaped component, or a curved plate-shaped component, which is not specifically limited. Figure 4 and Figure 5 It can be seen that the mounting portion 11c2 is enclosed at the edge of the cover portion 11c1, which means that the mounting portion 11c2 is continuously arranged along the edge of the cover portion 11c1 to form a closed connection from end to end. Understandably, in the vertical projection, the mounting portion 11c2 has a certain width, so that there is an appropriate contact area between the mounting portion 11c2 and the frame 11b, so as to facilitate the positioning and installation between the mounting portion 11c2 and the frame 11b.

[0120] The cover 11c1 and the mounting portion 11c2 can be integrally formed. When the bottom cover 11c is made of metal (such as aluminum, iron, stainless steel, etc.), the cover 11c1 and the mounting portion 11c2 can be integrally formed by die casting, forging, hot pressing, cold pressing, etc. When the bottom cover 11c is made of plastic (such as polypropylene, polyethylene, ABS (AcrylonitrileButadieneStyrene plastic)), the cover 11c1 and the mounting portion 11c2 can be integrally formed by injection molding. The cover 11c1 and the mounting portion 11c2 can also be formed separately and then connected together. When the cover 11c1 and the mounting portion 11c2 are made of metal, the cover 11c1 and the mounting portion 11c2 can be welded or bonded together. When the cover 11c1 and the mounting portion 11c2 are made of plastic, the cover 11c1 and the mounting portion 11c2 can be bonded together. Of course, the cover portion 11c1 and the mounting portion 11c2 may also be fixedly connected together by other means such as snap connection and riveting.

[0121] The cover portion 11c1 and the mounting portion 11c2 may be located in the same plane. Specifically, the two surfaces of the cover portion 11c1 and the mounting portion 11c2 facing the carrier 11a are located in the same plane, and / or the two surfaces of the cover portion 11c1 and the mounting portion 11c2 facing away from the carrier 11a are located in the same plane. When the two surfaces of the cover portion 11c1 and the mounting portion 11c2 facing the carrier 11a and the two surfaces facing away from the carrier 11a are located in the same plane, the cover portion 11c1 and the mounting portion 11c2 may form a flat bottom cover 11c.

[0122] The cover portion 11c1 and the mounting portion 11c2 may not be located in the same plane. Specifically, the cover portion 11c1 is recessed relative to the mounting portion 11c2 toward the carrier 11a, or the cover portion 11c1 is convex relative to the mounting portion 11c2 away from the carrier 11a, which is not specifically limited. The thickness of the cover portion 11c1 and the mounting portion 11c2 may be equal or different, which is not specifically limited.

[0123] At this time, the bottom cover 11c defines the accommodating cavity s via the cover portion 11c1 and is connected to the frame 11b via the mounting portion 11c2, so the structure is clear and the installation is convenient.

[0124] It is understandable that when the bottom cover 11c is detachably connected to the frame 11b, the bottom cover 11c is detachably connected to the frame 11b via the mounting portion 11c2, that is, the mounting portion 11c2 is detachably connected to the frame 11b. The mounting portion 11c2 is detachably connected to the frame 11b by simply setting the portion of the bottom cover 11c detachably connected to the frame 11b as the mounting portion 11c2.

[0125] In some embodiments, the mounting portion 11c2 is detachably connected to the frame 11b.

[0126] Specifically, the bottom cover 11c also includes a fixing hole 11c3 provided on the mounting portion 11c2, and the fixing member 11c4 is fastened to the frame 11b after passing through the fixing hole 11c3 on the mounting portion 11c2. The fixing hole 11c3 is a through hole that passes through the mounting portion 11c2 in the vertical direction. Specifically, the fixing hole 11c3 can be a smooth through hole (such as when the fixing member 11c4 is a rivet), a through hole with a thread (such as when the fixing member 11c4 is a screw), or a through hole in other forms (such as a hexagonal hole, a square hole, a waist-shaped hole, etc.). The specific form of the fixing hole 11c3 depends on the specific form and specific setting method of the fixing member 11c4, which will not be repeated here.

[0127] In some embodiments, please refer to Figure 6 , Figure 8 and Fig. 9 The box body 10 includes a lateral beam 13 , and the lateral beam 13 is arranged on the circumferential side wall n of the main body 11 .

[0128] The lateral beam 13 refers to a beam structure provided on the circumferential side wall n of the main body 11 to strengthen the strength of the main body 11. It can be understood that the lateral beam 13 is located outside the main body 11. Specifically, the main body 11 and the lateral beam 13 are connected as a whole in an integral manner, or they can be connected as a whole by assembly. The integral connection method includes but is not limited to welding, integral molding, fusion, etc. The assembly connection method includes but is not limited to clamping, fastening connection, etc.

[0129] The lateral beam 13 may be arranged on the entire circumferential side wall n of the main body 11, or may be arranged only on a part of the circumferential side wall n of the main body 11. Without limitation, the lateral beam 13 is arranged around the circumferential side wall n of the main body 11, so that the strength of the main body 11 can be strengthened from multiple lateral directions of the main body 11. Specifically, the lateral beam 13 is arranged continuously or discontinuously around the circumferential side wall n of the main body 11. When the lateral beam 13 is arranged continuously, it may be an annular beam, and when the lateral beam 13 is arranged discontinuously, it may include a plurality of beam portions arranged at intervals around the circumferential side wall n of the main body 11.

[0130] In an actual application scenario, the box 10 is used for the battery 100 and the battery 100 is applied to the vehicle 1000, the top of the box 10 is installed on the vehicle 1000 and the top of the box 10 forms the chassis structure of the vehicle 1000. When the battery 100 box 10 is used as the chassis of the vehicle 1000, the lateral structure of the box 10 is easily squeezed by external impact (such as stones flying during the driving of the vehicle 1000 hitting the lateral position of the box 10, or being hit by other vehicles 1000). At this time, a lateral beam 13 is provided on the lateral peripheral wall of the main body 11, and the lateral structural strength of the main body 11 can be strengthened by the lateral beam 13, thereby improving the lateral anti-extrusion ability of the box 10, and at the same time, the lateral anti-extrusion ability of the vehicle 1000 is also improved, thereby improving the safety of the vehicle 1000.

[0131] It can be understood that when the main body 11 includes the aforementioned supporting member 11 a and the frame 11 b , the lateral beam 13 is disposed on the circumferential side wall n defined by the frame 11 b .

[0132] The cavity formed by the frame 11b mainly constitutes the accommodating cavity s of the box body 10. Since the accommodating cavity s has a certain height to accommodate multiple battery cells 20, the frame 11b also has a certain height, so the circumferential side wall n of the frame 11b has a larger area. At this time, the lateral beam 13 is arranged on the circumferential side wall n defined by the frame 11b, and the installation method, installation area and arrangement method of the lateral beam 13 are more flexible.

[0133] In the embodiment, the lateral beam 13 and the frame 11b are fixedly connected or integrally formed. The lateral beam 13 and the frame 11b can be fixedly connected by welding, fusion, riveting, threading, etc., or formed into one piece by one-piece processing (such as stamping, die-casting).

[0134] When the lateral beam 13 and the frame 11b are integrally formed, the assembly process of the box 10 can be reduced, and the production process of the box 10 can be accelerated. When the lateral beam 13 and the frame 11b are fixedly connected, the molding process of the lateral beam 13 and the frame 11b is easier, which can reduce the process cost of the box 10.

[0135] In some embodiments, please refer to Fig.10The lateral beam 13 includes at least two sub-beams 13a, which are arranged in sequence along the circumferential side wall n. The sub-beams 13a are basic units constituting the lateral beam 13. By setting the positions of the sub-beams 13a, the positions of the lateral beams 13 can be flexibly arranged on the circumferential side wall n of the main body 11.

[0136] The lateral beam 13 is formed by at least two sub-beams 13a arranged at intervals along the circumferential side wall n of the main body 11, which means that at least two sub-beams 13a are arranged at intervals along the extension direction of the circumferential side wall n to form an encircling form surrounding the main body 11 to strengthen the strength of the main body 11 from multiple lateral directions of the main body 11.

[0137] The structure of the sub-beam 13a has various forms, and the structures of the sub-beams 13a can be the same or different. For example, the sub-beam 13a is a solid beam extending longitudinally, and for another example, the sub-beam 13a is a hollow beam extending longitudinally. The cross-sectional shape of each sub-beam 13a can be an H-shaped, U-shaped or other structural form.

[0138] At this time, the lateral beam 13 is formed by combining multiple sub-beams 13a, and the arrangement of the lateral beam 13 is more flexible. At the same time, each sub-beam 13a can be installed one by one during installation. Compared with the integral lateral beam 13, the positioning during the installation process is more convenient and more labor-saving.

[0139] In some embodiments, continue to refer to Fig.10 At least one sub-beam 13 a includes an upper arm beam 131 and a lower arm beam 132 . The upper arm beam 131 and the lower arm beam 132 are arranged in an upper and lower interval and are both connected to the main body 11 .

[0140] The up and down directions correspond to the directions of the top and bottom of the main body 11, that is, the upper arm beam 131 is close to the top of the main body 11, and the lower arm beam 132 is close to the bottom of the main body 11. It can be understood that the upper arm beam 131 and the lower arm beam 132 both extend along the circumference of the main body 11 and fit with the circumferential side wall n of the main body 11. The upper arm beam 131 and the lower arm beam 132 are arranged at intervals, and the two are connected through the main body 11. A channel can be formed in the middle of the interval between the two, which can be used as a weight-reducing structure or a structure for wiring harnesses.

[0141] At this time, the structure of the main body 11 is strengthened by the upper arm beam 131 and the lower arm beam 132. Since the upper arm beam 131 and the lower arm beam 132 are arranged separately, the impact force on the box body 10 can be dispersed, so that the external force on each part of the box body 10 is relatively uniform. At the same time, the upper arm beam 131 and the lower arm beam 132 are arranged at intervals up and down, so that the sub-beam 13a can withstand the compression in the front and rear directions or the left and right directions of the vehicle 1000, which is more suitable for the actual use conditions of the vehicle 1000. In addition, the upper arm beam 131 and the lower arm beam 132 are arranged at intervals to reduce the weight of the box body 10 and achieve other functions.

[0142] In other embodiments, an intermediate beam (not shown) may be provided between the upper arm beam 131 and the lower arm beam 132 , and the intermediate beam is connected between the upper arm beam 131 and the lower arm beam 132 , so as to further strengthen the structural strength of the sub-beam 13 a and improve the lateral compression resistance of the box body 10 .

[0143] In some embodiments, at least one of the upper arm beam 131 and the lower arm beam 132 is a hollow beam. A hollow beam means that the interior of the beam is a hollow structure, that is, there is a space inside the beam that is not filled with any solid material. At this time, the upper arm beam 131 and the lower arm beam 132 are hollow beam structures, which can not only reduce their own weight, but also reduce the problem of high energy consumption caused by the heavy weight of the battery 100 itself when the battery 100 formed by the box body 10 is applied to electrical devices such as vehicles 1000. Moreover, the hollow beam structure can consume the lateral extrusion force through the space inside it, thereby reducing the degree of damage to the battery 100 when it is laterally extruded.

[0144] In some embodiments, please refer to Figure 6 The circumferential side wall n includes at least two first wall segments n1 extending along the first direction F1 and spaced apart from each other; the at least two sub-beams 13a include two first sub-beams 13a1, which are respectively arranged on the two first wall segments n1 and both extend along the first direction F1.

[0145] In a practical application, when the battery 100 formed by the box 10 is used in a vehicle 1000 and the top of the box 10 forms the chassis of the vehicle 1000, the first direction F1 may correspond to the front-to-back direction of the vehicle 1000. The first wall segment n1 in the circumferential side wall n of the main body 11 corresponds to the circumferential side wall n in the left and right directions of the battery 100. The first wall segment n1 extends along the first direction F1, that is, along the front-to-back direction of the vehicle 1000. The two first wall segments n1 are arranged at intervals in the left-to-right direction of the vehicle 1000. Sub-beams 13a are provided on both first wall segments n1, and each sub-beam 13a has the same extension direction as each first wall segment n1.

[0146] The sub-beams 13a on each first wall segment n1 may have the same structure, so as to ensure that the anti-extrusion capability of the left and right sides of the vehicle 1000 is consistent. Further, the sub-beams 13a on the first wall segment n1 include the upper arm beam 131 and the lower arm beam 132 mentioned in the above embodiment. In this case, the sub-beams 13a have a stronger anti-extrusion capability, which can make up for the weaker structure of the left and right sides of the vehicle 1000, strengthen the anti-extrusion capability of the left and right sides of the vehicle 1000, and improve the safety of the vehicle 1000.

[0147] At this time, a sub-beam 13a is arranged on each first wall segment n1, which can strengthen the structural strength of each first wall segment n1 and improve the anti-extrusion ability of each first wall segment n1, that is, the left and right anti-extrusion ability of the vehicle 1000 is improved. It can be understood that since each sub-beam 13a extends along the first direction F1, it can also improve the bending resistance of the vehicle 1000 in the front and rear directions.

[0148] In some embodiments, continue to refer to Figure 6 The circumferential side wall n also includes two second wall segments n2 extending along a second direction F2 perpendicular to the first direction F1 and spaced apart from each other, and the two first wall segments n1 are alternately connected to the two second wall segments n2; the at least two sub-beams 13a also include two second sub-beams 13a2, and the two second sub-beams 13a2 are respectively arranged on the two second wall segments n2, and both extend along the first direction F1.

[0149] In practical applications, the second direction F2 may correspond to the left-right direction of the box 10. In this case, the second wall segment n2 corresponds to the circumferential side wall n in the front-rear direction of the battery 100. The second wall segment n2 extends along the second direction F2, that is, along the left-right direction of the vehicle 1000.

[0150] The sub-beam 13a structures on each second wall segment n2 can be the same, so that the anti-extrusion capabilities on the front and rear sides can be consistent. Further, the sub-beam 13a on the first wall segment n1 can only include the upper arm beam 131 mentioned in the above embodiment, and the upper arm beam 131 is arranged near the top of the main body 11. At this time, the anti-extrusion capability of the sub-beam 13a is relatively weak, mainly because the vehicle 1000 is usually provided with anti-extrusion structures such as bumpers in the front and rear directions. When the vehicle 1000 is squeezed in the front and rear directions, the anti-extrusion effect is mainly achieved through its front and rear bumpers. At this time, the anti-extrusion capability requirement of the sub-beam 13a of the second wall segment n2 is relatively weak, so a relatively simple sub-beam 13a structure can be adopted, which can reduce the cost of the battery 100 and the cost of the vehicle 1000.

[0151] At this time, a sub-beam 13a is arranged on each second wall segment n2, which can strengthen the structural strength of each second wall segment n2 and improve the anti-extrusion ability of each second wall segment n2, that is, the left and right anti-extrusion ability of the vehicle 1000 is improved. It can be understood that since each sub-beam 13a extends along the second direction F2, it can also improve the bending resistance of the vehicle 1000 in the left and right directions.

[0152] In some embodiments, continue to refer to Figure 6 The lateral beam 13 includes at least two first sub-beams 13a1 and at least two second sub-beams 13a2, both of which are arranged on the circumferential side wall n. The first sub-beams 13a1 extend along the first direction F1 and are spaced apart from each other, and the second sub-beams 13a2 extend along the second direction F2 intersecting the first direction F1 and are spaced apart from each other.

[0153] At this time, the sub-beam 13a provided at the first wall segment n1 is the first sub-beam 13a1, and the sub-beam 13a provided at the second wall segment n2 is the second sub-beam 13a2. The two first sub-beams 13a1 can enhance the anti-squeezing capability of the box body 10 in the left-right direction of the vehicle 1000, and the two second sub-beams 13a2 can enhance the anti-squeezing capability of the box body 10 in the front-back direction of the vehicle 1000, so that the lateral squeezing capability of the vehicle 1000 can be comprehensively improved, and the safety performance of the vehicle 1000 can be improved.

[0154] In some embodiments, continue to refer to Figure 6 The top of the lateral beam 13 is configured with a mounting portion 13a3.

[0155] For the introduction of the mounting portion 13a3, please refer to the above records, which will not be repeated here. At this time, the mounting portion 13a3 is set on the top of the lateral beam 13, and the box body 10 of the embodiment of the present application can be obtained by adding the lateral beam 13 on the basis of the existing box body 10 structure. In this way, the cost of transformation can be greatly reduced. At the same time, the mounting portion 13a3 is set on the lateral beam 13. Since the lateral beam 13 does not need to define the accommodating chamber s, it is not necessary to consider the influence of the mounting portion 13a3 on the sealing of the accommodating chamber s when setting the mounting portion 13a3, and the setting of the mounting portion 13a3 is more flexible. Moreover, the lateral beam 13 is located at the lateral edge of the box body 10. At this time, the mounting portion 13a3 is set on the lateral beam 13, and the operating space is larger and more convenient when the box body 10 is installed on an external device.

[0156] In some embodiments, the mounting portion 13 a 3 includes at least one mounting hole k1 disposed on the top of the lateral beam 13 .

[0157] The mounting hole k1 is provided at the top of the lateral beam 13 , and also has the beneficial effect of the mounting portion 13a3 being provided at the top of the lateral beam 13 , which is not described here.

[0158] In some embodiments, the top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13 jointly define a top surface h of the box body 10 .

[0159] The top surface h1 of the main body 11 refers to the outer surface of the main body 11 located at the top and away from the accommodating cavity s, and the top surface h2 of the lateral beam 13 refers to the outer surface of the lateral beam 13 located at the top. When the lateral beam 13 includes the upper arm beam 131 and the lower arm beam 132 in the above embodiment, the top surface h2 of the lateral beam 13 refers to the outer surface of the upper arm beam 131 away from the lower arm beam 132.

[0160] When the box body 10 includes both the main body 11 and the lateral beam 13 in the above-mentioned embodiment, the top surface h of the box body 10 can be defined by the top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13. The top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13 can be coplanar. At this time, the contact area between the top surface h of the box body 10 and the external device is large, which helps to improve the connection reliability between the box body 10 and the external device. At the same time, the top structure of the box body 10 is relatively flat and more beautiful. Of course. The top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13 may not be coplanar.

[0161] It is understandable that when the lateral beam 13 includes at least two sub-beams 13a, the top surface of each sub-beam 13a defines a part of the top surface h2 of the lateral beam 13, and the sub-beam 13a is provided with a mounting portion 13a3. Among them, the mounting portion 13a3 may be provided on some of the sub-beams 13a, or on all of the sub-beams 13a. When the mounting portion 13a3 is provided on some of the sub-beams 13a, in order to ensure the uniformity of the force of the mounting portion 13a3, the mounting portion 13a3 is provided on all of the symmetrically arranged sub-beams 13a. The symmetrically arranged sub-beams 13a include the two first sub-beams 13a1 in the above embodiment, and may also include the two second sub-beams 13a2 in the above embodiment.

[0162] In some embodiments, please refer to Figure 6 and Fig.10 A wiring portion 13a4 is constructed on the outer wall of the box body 10. The wiring portion 13a4 is located below the top surface h of the box body 10 and forms a wiring space for the wiring harness to pass through.

[0163] The outer wall of the box body 10 is the outer surface opposite to the inner surface defining the accommodating cavity s in the box body 10. The wiring portion 13a4 is located below the top surface of the box body 10, that is, the wiring portion 13a4 is arranged on the outer wall of the box body 10 below the top surface h. The outer wall of the box body 10 below its own top surface h includes a bottom surface and a side wall connecting the top surface h and the bottom surface.

[0164] When the box body 10 only includes the main body 11, the side wall of the box body 10 is the circumferential side wall n of the main body 11. When the box body 10 includes the main body 11 and the lateral beam 13, the side wall of the box body 10 includes the circumferential side wall n of the main body 11 not covered by the lateral beam 13 and the surface of the lateral beam 13 away from the main body 11.

[0165] The wiring portion 13a4 is located outside the accommodating cavity s and has a wiring space for the wiring harness between the power supply and the electrical components. The specific form of the wiring space is not limited, as long as there is an inlet for the wiring harness to enter and an outlet for the wiring harness to exit. The inlet and outlet can be the same opening. The wiring space can be a wiring hole or a wiring groove k2.

[0166] Specifically, a wiring portion 13a4 may be provided on the circumferential outer wall of the box 10, and the wiring harness may be routed through the side of the box 10, which is convenient. Specifically, a wiring portion 13a4 may be provided on the bottom surface of the box 10, and the wiring harness may be routed through the bottom of the box 10.

[0167] At this time, by forming a routing portion 13a4 on the outer wall of the box body 10, the routing space formed by the routing portion 13a4 is used for routing the wiring harness, which can effectively protect the wiring harness and prevent the wiring harness from being squeezed and deformed when the vehicle 1000 is squeezed from the outside, thereby preventing unnecessary safety hazards.

[0168] In a further embodiment, continue to refer to Figure 6 and Fig.10 The wiring portion 13a4 is arranged on the side wall of the box body 10 adjacent to its own top surface h.

[0169] The side wall is the outer surface of the box 10 connecting the top surface h and the bottom surface (the surface opposite to the top surface h). The wiring portion 13a4 can be only provided on part of the side walls of the box 10, such as one or two side walls of the box 10 in the first direction F1, or one or two side walls of the box 10 in the second direction F2. Of course, the wiring portion 13a4 can also be provided on all the side walls of the box 10.

[0170] At this time, the wiring portion 13a4 is arranged on the side wall of the box body 10. Since the lateral operating space of the box body 10 is large, it is more convenient to arrange the wiring harness.

[0171] In some embodiments, the wiring portion 13a4 is arranged on two side walls of the box body 10 that are adjacent to the top surface h and opposite to each other.

[0172] The two side walls adjacent to the top surface h and facing each other in the box 10 include two side walls facing each other in the first direction F1 and two side walls facing each other in the second direction F2. At this time, the wiring portion 13a4 can be symmetrically arranged relative to each other in the first direction F1 or relatively arranged relative to each other in the second direction F2, and the wiring harness can be routed from both sides of the box 10 in the first direction F1 at the same time, or from both sides of the box 10 in the second direction F2 at the same time, so that the symmetrical arrangement of the wiring harness can be achieved, the wiring harness arrangement is more beautiful, and it also helps to balance the weight of the vehicle 1000.

[0173] Furthermore, the wiring portion 13a4 is arranged on two side walls of the box 10 in the second direction F2, that is, arranged on two side walls of the box 10 corresponding to the left and right directions of the vehicle 1000. Since various electric drive systems (used to provide power for the vehicle 1000 to move forward) on the vehicle 1000 are mainly arranged on the front side or the rear side, the wiring harness is mainly connected to the battery 100 and the electric drive system along the front and rear direction of the vehicle 1000. Arranging the wiring portion 13a4 in this way makes it more convenient to route the wiring harness.

[0174] In one specific embodiment, refer to Figure 6 and Fig.10 The wiring portion 13a4 includes a wiring groove k2 formed on the outer wall of the box body 10 and recessed toward the accommodating cavity s.

[0175] It can be understood that the wiring space with one side open is formed by the wiring groove k2 being recessed toward the accommodating chamber s, and the open side is opposite to the groove bottom of the wiring groove k2. While the wiring groove k2 is recessed toward the accommodating chamber s, it can also have an inlet and an outlet. Specifically, the inlet of the wiring groove k2 can be an opening at one end of the extension direction of the wiring groove k2, and the outlet of the wiring groove k2 can be an opening at the other end of the extension direction of the wiring groove k2.

[0176] When the wiring groove k2 is located on the side wall of the box 10 in the second direction F2, the wiring groove k2 can be extended along the first direction F1. When the wiring groove k2 is located on the side wall of the box 10 in the first direction F1, the wiring groove k2 can be extended along the second direction F2.

[0177] At this time, since the wiring groove k2 has an open opening, the open setting is more convenient for the wiring harness to be installed. Moreover, the wiring groove k2 formed by the depression is configured as the wiring portion 13a4, and no other structure forming a wiring space is required, so the box body 10 has a simpler structure and lower cost.

[0178] Of course, in other embodiments, the wiring portion 13a4 may also be a structure with a wiring hole additionally provided on the outer wall of the box body 10, such as a wiring rod with a wiring hole.

[0179] In some embodiments, reference Figure 6 and Fig.10 The lateral beam 13 is structured to form a wiring portion 13a4.

[0180] Specifically, when the wiring portion 13a4 is a wiring groove k2, the lateral beam 13 can be composed of the upper arm beam 131 and the lower arm beam 132 in the above embodiment, and the space between the upper arm beam 131 and the lower arm beam 132 is the space where the wiring groove k2 is located. Alternatively, the outer surface of the lateral beam 13 facing away from the main body 11 is recessed to form the wiring groove k2.

[0181] When the wiring portion 13a4 is a wiring hole, the lateral beam 13 is provided with hollow beams at both ends along the extension direction thereof, and the internal space of the lateral beam 13 can be constructed to form a wiring hole. Alternatively, the lateral beam 13 includes the upper arm beam 131, the lower arm beam 132 and the middle beam (not shown) in the above embodiment, and the wiring hole is enclosed by the middle beam, the upper arm beam 131 and the lower wall beam.

[0182] At this time, the wiring portion 13a4 is formed on the lateral beam 13, that is, the lateral beam 13 has a wiring space. The wiring space can reduce the weight of the lateral beam 13 and realize the wiring, thus killing two birds with one stone.

[0183] In a specific embodiment, the upper arm beam 131 and the lower arm beam 132 are jointly constructed to form a wiring portion 13a4 having a wiring space. At this time, the wiring space is formed by the space between the upper arm beam 131 and the lower arm beam 132, and the wiring portion 13a4 has a simple structure and achieves two goals at one stroke.

[0184] Fig.11 Schematic diagram of a partial structure of a battery 100 in some other embodiments of the present application, Fig.12 for Fig.11 An exploded view of the side view of the structure shown, Fig.13 for Fig.11 A side view of the structure, Fig.14 for Fig.12 An enlarged view of D of the structure shown. Fig.15 for Fig.11 Schematic diagram of application scenarios of the structure shown, Fig.16 for Fig.14 Side view of the structure shown.

[0185] In some embodiments, please refer to Fig.11 The box body 10 further includes a sealing member 12, which is disposed on the top of the box body 10 and is used for sealingly connecting with an external device.

[0186] The seal 12 refers to a component that can prevent fluid or solid particles from leaking from adjacent joint surfaces. The seal 12 is arranged on the top of the box body 10 and divides the top of the box body 10 into an external area located outside the seal 12 and an internal area surrounded by the seal 12. The seal 12 seals and connects the top of the box body 10 and the two surfaces opposite to the external device, and forms a contact interface with the two surfaces, which can prevent fluid or solid particles in the external area outside the seal 12 from entering the internal area surrounded by the seal 12 through the contact interface between the seal 12 and the two surfaces, thereby achieving a sealing effect.

[0187] The seal 12 may be a sealing ring or a sealing pad. Specifically, the seal 12 may be made of rubber, silicone or other materials. Specifically, the seal 12 may be an O-shaped seal, a square seal, a special-shaped seal or the like. The specific shape of the seal 12 may be adapted to the shapes of the top of the box body 10 and the two opposite surfaces of the external device. For example, when the top of the box body 10 and the two opposite surfaces of the external device are square surfaces, the seal 12 may be a square seal.

[0188] At this time, the box body 10 of the battery 100 is sealed and connected to the external device through the sealing member 12, and the sealing is reliable and the cost is low.

[0189] It can be understood that the box body 10 of the battery 100 is sealed with the external device through the sealing member 12, and is also fixedly connected to the external device through the mounting portion 13a3, and at this time, the top surface h of the box body 10 is in contact with the external device.

[0190] Taking the body 200 of the vehicle 1000 as an example, the battery 100 can be installed at the bottom of the body 200 and sealed with the body 200 through the seal 12 on the sealing area hc. At this time, the internal area of ​​the seal 12 is the inside of the body 200, and the external area is the outside of the body 200. The fluid or solid particles outside the body 200 cannot leak into the inside of the body 200. For example, stones or liquids splashed during the driving of the vehicle 1000 cannot hit the inside of the body 200, thereby achieving the sealing and structural reliability of the inside of the body 200.

[0191] In some embodiments, please refer to Figure 7 and Fig.11 The top of the box body 10 is provided with a mounting position 141b on the side away from the receiving chamber s. The battery 100 is mounted on the external device via the top of the box body 10 and the mounting position 141b forms a part of the structure of the external device.

[0192] The mounting position 141b is a mounting area formed by a local area structure on the top of the box 10 for mounting a certain structure (hereinafter referred to as a mounting member). The mounting member may be a partial structure of an external device, and the mounting position 141b may be a structure such as a mounting buckle or a mounting hole with a connecting function. Taking the external device as the body 200 of the vehicle 1000 as an example, the mounting position 141b may be used to mount the seat 300 or the operating rod of the vehicle 1000. The seat 300 or the operating rod is fixedly connected to the mounting position 141b on the top of the box 10 through the mounting buckle or the mounting hole.

[0193] Specifically, the mounting piece installed on the mounting position 141b can be a local structure of the external device. The mounting position 141b for mounting the local structure of the external device also forms a partial structure of the external device after the top of the box 10 is connected to the external device. At this time, the battery 100 is installed on the external device through the top of the box 10, and after the mounting position 141b on the top of the battery 100 forms a local structure of the external device, the mounting piece is connected to the box 10 of the battery 100 to achieve connection with the external device.

[0194] In this way, the battery 100 and a part of the structure of the external device are integrated, so that a part of the structure of the battery case 10 is a part of the structure of the external device, thereby avoiding the battery 100 and the external device being separately arranged.

[0195] In other embodiments, the mounting member installed on the mounting position 141b may also be a structure other than the external device, which is installed on the mounting position 141b to achieve fixed connection with the battery 100 and the external device at the same time.

[0196] In a specific embodiment, Fig.14 and Fig.15 Taking the external device as the vehicle body 200 of the vehicle 1000 and the mounting position 141b for mounting the seat 300 as an example, by constructing the mounting position 141b on the top of the box 10 of the battery 100, the mounting position 141b forms the internal structure of the vehicle body 200, forming an integrated setting of the battery 100 and the vehicle body 200, thereby avoiding the separation of the battery 100 and the vehicle body 200, and making the vehicle 1000 simple in structure, smaller in size and more compact.

[0197] It can be understood that the fixed connection between the box 10, the vehicle body 200 and the seat 300 can ensure that all structures are connected up and down with the top of the box 10 in the vertical direction, reducing the installation space and installation force in other directions of the box 10, and can reduce the lateral structure and bottom structure force of the battery 100 box 10, thereby improving the stability of the vehicle 1000 structure.

[0198] In some embodiments, please refer to Figure 7 The mounting position 141b includes a mounting hole constructed on the top of the box body 10.

[0199] The mounting hole is a through hole that passes through the mounting position 141b in the vertical direction. When the mounting seat 300 is mounted on the mounting position 141b, a fastener needs to be set. The mounting hole can be a smooth through hole (such as when the fastener is a rivet), a threaded through hole (such as when the fastener is a screw), or other through holes (such as hexagonal holes, square holes, waist-shaped holes, etc.). The specific form of the fixing hole 11c3 depends on the specific form of the fastener and the specific setting method, which will not be repeated here.

[0200] The number of mounting holes is the same as the number of fasteners. A fastener is provided in each mounting hole. The corresponding mounting part is installed and positioned in the mounting hole through the fastener, so that the mounting part is fixed to the box body 10 of the battery 100 and a fixed connection between the mounting part and the external device can be achieved.

[0201] In other embodiments, the mounting position 141b may also include other structures connected to the top of the box body 10, such as snaps, elastic locks, etc., which are not specifically limited.

[0202] In some embodiments, please refer to Figures 4 to 7 ,and Fig.11 The box 10 includes a main body 11 and a mounting beam 141. The main body 11 encloses a receiving cavity s, and the top of the main body forms at least a part of the top of the box 10. The mounting beam 141 is arranged on the top of the main body 11 and a mounting position 141b is configured on a side away from the main body 11.

[0203] The main body 11 may be an integrally formed structure or may be formed by assembling a plurality of parts. The specific configuration has been explained in detail above and will not be repeated here.

[0204] The top of the box body 10 has a top surface h on the side away from the accommodating cavity s, and the mounting position 141b is connected to the top surface h. The mounting beam 141 is a structure with a certain load-bearing capacity provided on one side of the top of the main body 11, and is used to share the force from the mounting member on the top of the box body 10. Fig.15 and 16 As shown, when the mounting member is a seat 300 , the operator will apply pressure when sitting on the seat 300 , and the pressure will be first applied to the mounting beam 141 and then applied to the top of the box body 10 .

[0205] The mounting beam 141 can be directly set on the surface of the top surface h or on a recessed or protruding portion formed on the top surface h. The one or more load-bearing structures included in the mounting beam 141 are jointly constructed on the side away from the top surface h to form a mounting position 141b for fixing the mounting member, thereby realizing the connection between the mounting member and the top of the box body 10.

[0206] The setting form and extension direction of the load-bearing structure are set according to the size, weight and specific structure of the mounting part installed on the mounting position 141b as required, and are not specifically limited. The mounting beam 141 shares the force exerted on the top of the main body 11 to improve the load-bearing capacity of the box 10 of the battery 100.

[0207] In some embodiments, the mounting beam 141 is fixedly connected to or integrally formed with the main body 11 .

[0208] The mounting beam 141 and the main body 11 can be fixedly connected by fastening, snap-fitting, welding, bonding, hot-melt connection, etc. Of course, the mounting beam 141 and the main body 11 can be integrally formed by injection molding, die casting, forging, cold pressing, hot pressing, etc.

[0209] When the main body 11 is made of metal (such as aluminum, iron, stainless steel, etc.), the mounting beam 141 and the main body 11 can be integrally formed by die casting, forging, hot pressing, cold pressing, etc. When the main body 11 is made of plastic (such as PP, PE, ABS, etc.), the mounting beam 141 and the main body 11 can be integrally formed by injection molding. The mounting beam 141 and the main body 11 can also be formed separately and then connected together. When the mounting beam 141 and the main body 11 are made of metal, the mounting beam 141 and the main body 11 can be welded or bonded together. When the mounting beam 141 and the main body 11 are made of plastic, the mounting beam 141 and the main body 11 can be bonded together.

[0210] When the mounting beam 141 is fixedly connected to the main body 11 , the molding process of the mounting beam 141 and the main body 11 is relatively easy, which can reduce the process cost of the box body 10 .

[0211] When the mounting beam 141 is integrally formed with the main body 11 , the box body 10 , the external device and the mounting member can be easily assembled.

[0212] In other embodiments, the main body 11 is connected to a portion other than the mounting beam 141, and the connection method may be either integrally formed or fixedly connected.

[0213] In some embodiments, please refer to Figure 7 and Fig.11 The mounting beam 141 includes at least one protrusion 141a, each protrusion 141a is protruding from the top of the main body 11 in a direction away from the accommodating cavity s, and each protrusion 141a and the main body 11 together form a weight reduction channel 141a1; the mounting position 141b is constructed on the side of the protrusion 141a facing away from the main body 11.

[0214] The convex portion 141a is the load-bearing structure included in the mounting beam 141 mentioned above, which is protruded in the direction away from the accommodating cavity s relative to the plane where the top surface h of the box body 10 is located, and the convex portion 141a itself has a certain height, so it is protruded on the top surface h of the box body 10. The mounting position 141b is formed on the side of all the convex portions 141a away from the main body 11. At this time, when the mounting member is installed on the mounting position 141b, it is in direct contact with the convex portion 141a structure, but not in direct contact with the top surface h, so that the force on the top of the box body 10 is dispersed through the convex portion 141a, and the load-bearing capacity of the top of the box body 10 is increased.

[0215] Each convex portion 141a can form a structure with multiple surfaces surrounding one end and open, and the top surface h1 of the main body 11 covers the open opening of each convex portion 141a and forms a weight reduction channel 141a1 together with the convex portion 141a. The weight reduction channel 141a1 can be formed by hollowing the convex portion 141a or punching holes, digging grooves, etc., to achieve a lightweight design of the box body 10.

[0216] In a specific embodiment, each convex portion 141a has a weight-reducing channel 141a1 extending along its own extension direction. The weight-reducing channel 141a1 reduces the weight of each convex portion 141a, thereby reducing the overall weight of the box 10 and reducing the cost. Each weight-reducing channel 141a1 can form a hidden channel. In other embodiments, the hidden channel can also be used for operations such as concealed wiring.

[0217] In some embodiments, please refer to Figures 6 to 7 , all the protrusions 141a extend in the same direction and are spaced apart from each other.

[0218] The direction referred to by “the same direction” may specifically be the first direction F1 or the second direction F2 mentioned above, or may be a direction coplanar with and intersecting the first direction F1 and the second direction F2, and is not specifically limited.

[0219] All the convex parts 141a are arranged at intervals from each other, which means that a set interval is maintained between each two adjacent convex parts 141a in the direction intersecting the extending direction of the convex parts 141a. Under the effect of the set interval, a buffer space is formed between each two adjacent convex parts 141a, which can prevent the external force acting on the mounting beam 141 from being transmitted to the box body 10 and damaging the battery 100. In addition, the plurality of convex parts 141a arranged at intervals can form a sufficiently large supporting area and fixing position to realize a large-area support for the mounting parts, and can be suitable for the installation of mounting parts of different volumes and sizes.

[0220] All the protrusions 141 a are arranged in parallel along the same direction, so that the buffer space and the protrusions 141 a extend in the same direction. In practical applications, buffering can be achieved at any position in the extension direction of the mounting beam 141 .

[0221] The set spacing distance between each two adjacent protrusions 141a can be equal or unequal. It can be understood that in order to ensure uniform support for the mounting member, the set spacing distance between each two adjacent protrusions 141a is equal.

[0222] In some embodiments, the sides of all the protrusions 141 a facing away from the main body 11 are located on the same plane.

[0223] All the protrusions 141a are arranged to protrude in the same direction, and the protrusion heights of all the protrusions 141a are the same, so that the side of all the protrusions 141a away from the installation cavity forms a flat plane in a certain direction, such as a flat plane on a horizontal plane. The installation component is placed on the flat plane for installation, which makes the installation smoother and simpler, and can achieve a firm connection between the installation component and the installation beam 141.

[0224] In a specific embodiment, the protrusion 141 a may be a quadrilateral prism structure, and the same side surfaces of all the protrusions 141 a are located in the same plane and jointly define a mounting position 141 b for mounting the mounting member, so that the mounting member can be stably placed on the mounting beam 141 .

[0225] In some embodiments, please refer to Figure 4 , Figure 7 and Fig.11 The box body 10 further includes a side impact reinforcement beam 14 , which is disposed at the top of the main body 11 and extends from the middle of the top of the main body 11 to the outer edges of the opposite sides of the top of the main body 11 .

[0226] The side impact reinforcement beam 14 refers to a beam structure disposed on the top of the main body 11 to strengthen the strength of the main body 11. Understandably, the side impact reinforcement beam 14 is located outside the main body 11. Specifically, the main body 11 and the side impact reinforcement beam 14 are integrally connected to form a whole, or they can be connected to form a whole by assembly. The integral connection includes but is not limited to welding, integral molding, fusion, etc. The assembly connection includes but is not limited to snap-on connection, threaded connection, etc.

[0227] The side impact reinforcement beam 14 can be extended from the middle of the top of the main body 11 to the outer edges of the two opposite sides of the top of the main body 11 in the first direction F1, and the side impact reinforcement beam 14 can strengthen the anti-side impact capability of the box body 10 in the first direction F1. The side impact reinforcement beam 14 can also be extended from the middle of the top of the main body 11 to the outer edges of the two opposite sides of the top of the main body 11 in the second direction F2, and the side impact reinforcement beam 14 can strengthen the anti-side impact capability of the box body 10 in the second direction F2.

[0228] The side impact reinforcement beam 14 can extend from the middle of the top of the main body 11 along two collinear directions to the opposite outer edges of the top of the main body 11, or can extend from the middle of the top of the main body 11 along two intersecting directions to the opposite outer edges of the top of the main body 11. When the side impact reinforcement beam 14 extends from the middle of the top of the main body 11 to the opposite outer edges along two collinear directions, the side impact reinforcement beam 14 is implemented by a straight beam, and the structure is simpler.

[0229] The side impact reinforcement beam 14 can extend to the outer edges on both sides, or to the area between the outer edges and the middle part on both sides, or to the area outside the outer edges on both sides. In other words, the specific extension length of the side impact reinforcement beam 14 is not limited, as long as it extends from the middle part of the top of the main body 11 toward the outer edges on both sides of the top of the main body 11.

[0230] When the battery 100 is applied to the vehicle 1000 and the top of the box 10 is constructed as the chassis of the vehicle 1000, since the vehicle 1000 has poor side collision resistance in the left and right directions, the side collision reinforcement beam 14 can be designed to extend from the middle of the top of the main body 11 toward the outer edges on both sides of the top of the main body 11 in the left and right directions of the vehicle 1000, so as to enhance the side collision resistance of the vehicle 1000 in the left and right directions and improve the safety performance of the vehicle 1000.

[0231] At this time, a side impact reinforcement beam 14 is provided on the top of the main body 11 of the box body 10, which can improve the side impact resistance of the box body 10, and further improve the side impact resistance of the vehicle 1000 loaded with the battery 100 composed of the box body 10, which helps to ensure the safety performance of the battery 100 and the vehicle 1000.

[0232] When the main body 11 includes the frame 11b and the carrier 11a, the side impact reinforcement beam 14 is at least disposed on the top of the carrier 11a. At this time, since the top of the carrier 11a forms at least a part of the top of the main body 11, the carrier 11a has sufficient space for the side impact reinforcement beam 14 to be installed.

[0233] In some embodiments, the side impact reinforcement beam 14 extends to connect with the top of the frame 11b.

[0234] At this time, the top of the frame 11b also forms a part of the top of the main body 11, and the side impact reinforcement beam 14 can also extend to connect with the top of the frame 11b. In addition to the direct connection between the frame 11b and the carrier 11a, the connection can also be strengthened by the side impact reinforcement beam 14, thereby enhancing the connection reliability between the frame 11b and the carrier 11a.

[0235] In some embodiments, the number of the side impact reinforcement beam 14 is at least one, and all the side impact reinforcement beams 14 extend in the same direction and are spaced apart from each other.

[0236] The direction referred to by “the same direction” may specifically be the first direction F1 or the second direction F2 mentioned above, or may be a direction coplanar with and intersecting the first direction F1 and the second direction F2, and is not specifically limited.

[0237] All the side impact reinforcement beams 14 are arranged to extend in the same direction, and each side impact reinforcement beam 14 can strengthen the side impact resistance of the box body 10 in the extending direction, so that the side impact resistance of the box body 10 in the extending direction is enhanced. It can be understood that each side impact reinforcement beam 14 is arranged at intervals in a direction intersecting with the "same direction", so that the strength of the box body 10 at multiple positions can be strengthened, so that the structural strength and side impact resistance of the box body 10 are more uniform.

[0238] In some embodiments, at least one of the side impact reinforcement beams 14 is configured as a mounting beam 141 , and a mounting position 141 b is configured on a side of the mounting beam 141 facing away from the main body 11 .

[0239] The introduction of the mounting beam 141 and the mounting position 141b is detailed in the above description and will not be repeated here. When the side impact reinforcement beam 14 includes one, the side impact reinforcement beam 14 is used as the mounting beam 141. When the side impact reinforcement beam 14 includes at least two, part of it can be used as the mounting beam 141. Specifically, when the side impact reinforcement beam 14 includes at least two, the side impact reinforcement beam 14 close to the front of the vehicle 1000 can be used as the mounting beam 141 for installing the seat 300 (the seat 300 can be the seat 300 in the cab).

[0240] At this time, using at least one of the side impact reinforcement beams 14 as the mounting beam 141 not only has the effect of preventing side impact, but also can be used to mount other mounting parts, thus serving two purposes.

[0241] In some embodiments, the side impact reinforcement beam 14 includes at least one protrusion 141a, each protrusion 141a is protruding from the top of the main body 11 in a direction away from the accommodating cavity s, and each protrusion 141a and the main body 11 together form a weight reduction channel 141a1.

[0242] The convex portion 141a of the side impact reinforcement beam 14 is the same as the convex portion 141a structure mentioned in the above embodiment when introducing the structure of the mounting beam 141. For a detailed description, please refer to the above description. The convex portion 141a is protruded relative to the plane where the top surface h1 of the main body 11 is located in a direction away from the accommodating cavity s. The convex portion 141a itself has a certain height, so it is protruded from the top surface h1 of the main body 11.

[0243] Each convex portion 141a can form a structure with multiple surfaces surrounding one end and open, and the top surface h1 of the main body 11 covers the open opening of each convex portion 141a and forms a weight reduction channel 141a1 together with the convex portion 141a. The weight reduction channel 141a1 can be formed by hollowing the convex portion 141a or punching holes, digging grooves, etc., to achieve a lightweight design of the box body 10.

[0244] In a specific embodiment, each convex portion 141a has a weight-reducing channel 141a1 extending along its own extension direction. The weight-reducing channel 141a1 reduces the weight of each convex portion 141a, thereby reducing the overall weight of the box 10 and reducing the cost. Each weight-reducing channel 141a1 can form a hidden channel. In other embodiments, the hidden channel can also be used for operations such as concealed wiring.

[0245] In some embodiments, please refer to Figure 7 , all the protrusions 141a extend in the same direction and are spaced apart from each other.

[0246] All the convex parts 141a are arranged at intervals from each other, which means that a set interval is maintained between each two adjacent convex parts 141a in the direction intersecting the extending direction of the convex parts 141a. Under the effect of the set interval, a buffer space is formed between each two adjacent convex parts 141a, which can prevent the external force acting on the mounting beam 141 from being transmitted to the box body 10 and damaging the battery 100. In addition, the plurality of convex parts 141a arranged at intervals can form a sufficiently large supporting area and fixing position to realize a large-area support for the mounting parts, and can be suitable for the installation of mounting parts of different volumes and sizes.

[0247] All the protrusions 141 a are arranged in parallel along the same direction, so that the buffer space and the protrusions 141 a extend in the same direction. In practical applications, buffering can be achieved at any position along the extension direction of the side impact reinforcement beam 14 .

[0248] The set spacing distance between each two adjacent protrusions 141a can be equal or unequal. It can be understood that when the side impact reinforcement beam 14 is used as the mounting beam 141, in order to ensure uniform support for the mounting parts, the set spacing distance between each two adjacent protrusions 141a is equal.

[0249] In some embodiments, the sides of all the protrusions 141 a facing away from the main body 11 are located on the same plane.

[0250] One side of all the protrusions 141a is located on the top surface h1 of the main body 11, and all the protrusions are arranged to protrude in the same direction and have the same height, so that the side of all the protrusions 141a away from the installation cavity forms a flat plane in a certain direction, such as a flat plane on a horizontal plane, so as to achieve a firm connection between the mounting piece and the mounting beam 141.

[0251] In a specific embodiment, the protrusion 141 a may be a quadrilateral prism structure, and the same side surfaces of all the protrusions 141 a are located in the same plane and jointly define a mounting position 141 b for mounting the mounting member, so that the mounting member can be stably placed on the mounting beam 141 .

[0252] In some embodiments, please refer to Fig.10 The box body 10 is formed with a battery chamber s1 and a high-voltage chamber s2 which are independently arranged from each other. The battery chamber s1 is used to accommodate the battery cell 20, and the high-voltage chamber s2 is used to accommodate the high-voltage box.

[0253] The high-voltage box is an important safety barrier for the battery group 100. It is equipped with a high-voltage control system, which is mainly used to: connect or disconnect the high-voltage circuit according to the electronic control requirements of the whole vehicle; provide current and leakage detection terminals; when the external current of the battery group 100 is too large, realize controllable load cut-off; when the external circuit of the battery group 100 is short-circuited, realize the disconnection of the high-voltage circuit to prevent the battery group 100 from catching fire; when repairing the battery group 100, the high-voltage circuit can be conveniently cut off.

[0254] The battery chamber s1 and the high-pressure chamber s2 are independently arranged from each other, which means that the battery chamber s1 and the high-pressure chamber s2 are sealed from each other. In order to realize the independent arrangement of the battery chamber s1 and the high-pressure chamber s2, the battery chamber s1 and the high-pressure chamber s2 may be formed by two independent components, for example, an independent first component and a second component are arranged inside the box body 10, the first component forms the battery chamber s1, and the second component forms the high-pressure chamber s2. Alternatively, a partition is arranged inside the box body 10 to separate the accommodating chamber s formed inside the box body 10 into independent battery chambers s1 and high-pressure chambers s2. Alternatively, all the accommodating chambers s formed inside the box body 10 are used as battery chambers s1, and a high-pressure chamber 15 is constructed outside the box body 10 to form the high-pressure chamber s2, so as to realize the independence of the battery chamber s1 and the high-pressure chamber s2.

[0255] The battery cavity s1 is used to accommodate the battery cell 20, and the high-voltage cavity s2 is used to accommodate the high-voltage box. When the battery cavity s1 and the high-voltage cavity s2 are independently arranged, if the high-temperature gas leaked by the battery cell 20 in the battery cavity s1 due to thermal failure will not enter the high-voltage box, and will not cause thermal damage to the high-voltage control system in the high-voltage box, thereby ensuring the normal control function of the high-voltage control system and improving the safety performance of the battery 100.

[0256] In some embodiments, reference Figures 11 to 13 The box body 10 also includes a high-voltage chamber 15, a battery chamber s1 is formed in the main body 11, and the high-voltage chamber 15 is arranged outside the main body 11, and is enclosed by itself or together with the main body 11 to form a high-voltage chamber s2.

[0257] The high-voltage chamber 15 can be a shell 22 structure, the interior of which is hollow to form a high-voltage chamber 15 for placing a high-voltage box. The high-voltage chamber 15 is arranged outside the main body 11, and the battery cavity s1 is formed by the main body 11 (in this case, the battery cavity s1 is equivalent to the accommodating cavity s), so that the high-voltage cavity s2 and the battery cavity s1 are independently arranged.

[0258] When the high-pressure chamber 15 and the main body 11 form a high-pressure chamber s2 together, the high-pressure chamber 15 has an opening and is installed on the main body 11 through the opening. When the high-pressure chamber 15 encloses itself to form the high-pressure chamber s2, it only has an installation relationship with the main body 11.

[0259] At this time, the high-pressure chamber 15 disposed outside the main body 11 defines a high-pressure chamber s2 , and the accommodating chamber s formed by the main body 11 can be used as a battery chamber s1 to accommodate the battery cell 20 , thereby increasing the capacity of the battery 100 .

[0260] In some embodiments, reference is made to Figure 11 to Figure 12 The high-pressure chamber 15 is protrudingly arranged on the top of the main body 11.

[0261] The high-voltage chamber 15 is protrudingly arranged on the top of the main body 11, that is, the high-voltage chamber 15 is located outside the main body 11 and is arranged on the top surface h1 of the main body 11. When the battery 100 box 10 is used as the chassis of the vehicle 1000, since the high-voltage chamber 15 is located on the top of the main body 11, it will not be exposed outside the vehicle 1000 and can be protected from external impacts (such as stones flying during the driving of the vehicle 1000), and the high-voltage chamber 15 is safer.

[0262] It can be understood that when the main body 11 includes the frame 11b and the carrier 11a, the carrier 11a constitutes at least a portion of the top of the main body 11, and the high-pressure chamber 15 is arranged on the top of the carrier 11a, and is enclosed by itself or together with the carrier 11a to form a high-pressure chamber s2. At this time, since the carrier 11a constitutes most of the area on the top of the main body 11, the high-pressure chamber 15 is arranged on the top of the carrier 11a, and the space for installing the high-pressure chamber 15 is larger, and the installation is more stable.

[0263] Of course, when the top of the frame 11b is also constructed as a part of the top of the main body 11, the high-pressure chamber 15 can also be arranged on the top of the frame 11b, which can be specifically set according to the installation method of the frame 11b and the carrier 11a.

[0264] In some embodiments, reference is made to Figures 11 to 13 The high-pressure chamber 15 is arranged close to the top outer edge of the main body 11 .

[0265] The top outer edge of the main body 11 includes: a side outer edge of the top of the main body 11 set in the front direction of the vehicle 1000, a side outer edge of the top of the main body 11 set in the rear direction of the vehicle 1000, a side outer edge of the top of the main body 11 set in the left direction of the vehicle 1000, and a side outer edge of the top of the main body 11 set in the right direction of the vehicle 1000.

[0266] In one application example, the high-pressure chamber 15 is arranged near the top of the main body 11 on the outer edge of one side in the rear direction of the vehicle 1000, that is, the high-pressure chamber 15 is arranged near the rear of the vehicle 1000. At this time, the high-pressure chamber 15 can be arranged corresponding to the passenger space behind the driving space of the vehicle 1000, in particular, it can be arranged corresponding to the bottom of the seat 300 of the passenger space, and does not need to occupy the activity space of the vehicle 1000.

[0267] In some embodiments, reference Figure 4 , Figure 6 , Figures 11 to 13 The high-pressure compartment 15 and the side impact reinforcement beam 14 are arranged in sequence in the first direction F1, and the side impact reinforcement beam 14 is extended along a second direction F2 intersecting the first direction F1.

[0268] When the box body 10 includes the side impact reinforcement beam 14 , the high-pressure chamber 15 and the side impact reinforcement beam 14 can be both disposed on the top of the main body 11 .

[0269] The high-pressure chamber 15 and the side impact reinforcement beam 14 are arranged in sequence in the first direction F1, which means that the high-pressure chamber 15 is located on one side of all the side impact reinforcement beams 14 in the first direction F1. The side impact reinforcement beam 14 extends along the second direction F2 intersecting the first direction F1 without interfering with the high-pressure chamber 15. The structural arrangement of the high-pressure chamber 15 and the side impact reinforcement beam 14 is relatively reasonable, and the utilization rate of the top space of the main body 11 is relatively high.

[0270] In relation to the specific embodiments, refer to Figure 4 The high-pressure chamber 15 includes a chamber cover 15a and a chamber box 15b. The chamber box 15b is disposed on the top of the main body 11 and forms a high-pressure chamber s2 open away from the main body 11. The chamber cover 15a is detachably covered on the open side of the high-pressure chamber s2.

[0271] The bin box 15b and the main body 11 can be connected by welding, fusion, bonding, fastening, etc. Without limitation, the bin box 15b can be made of plastic. The bin cover 15a and the bin box 15b can be detachably connected by fasteners or by snap-on connection, and the specific form is not limited.

[0272] At this time, the high-pressure chamber s2 is formed by the chamber box 15b, and the high-pressure chamber s2 is sealed by the chamber cover 15a. The chamber cover 15a and the chamber box 15b are detachably connected, which is convenient for installing and repairing the high-pressure box.

[0273] Fig.17 Schematic diagram of a partial structure of a battery 100 in some other embodiments of the present application, Fig.18 for Fig.17 A side view of the structure shown, Fig.19 for Fig.18 An exploded view of the structure, Fig. 20 for Fig.18A cross-sectional view of the structure shown at EE. Fig.21 for Fig.17 A top view of the structure shown.

[0274] In some embodiments, please refer to Figures 17 to 21 The box body 10 also includes a middle channel beam 16, which extends along the first direction F1 and is arranged on the top of the main body 11, and is equidistant from the outer edges on both sides of the top of the main body 11 in a second direction F2 intersecting the first direction F1. The middle channel beam 16 has a wiring channel 16a for the wiring harness to pass through.

[0275] In a conventional vehicle 1000, a center channel beam 16 is usually provided on the chassis of the vehicle body 200 of the vehicle 1000. The center channel beam 16 is a beam structure extending from the front chassis to the rear chassis on the vehicle body 200 of the vehicle 1000, and is a main structural member for the collision transmission path of the vehicle body 200 and for ensuring the floor rigidity of the vehicle body 200. The center channel beam 16 is arranged in the middle area of ​​the chassis of the vehicle 1000, and extends from the front chassis to the rear chassis along the front-rear direction of the vehicle 1000.

[0276] In this embodiment, the middle channel beam 16 of the vehicle 1000 is directly integrated on the top of the main body 11 of the box body 10. Specifically, the middle channel beam 16 is extended along the first direction F1 (corresponding to the front-rear direction of the vehicle body 200), and is equidistantly arranged at the outer edges of both sides of the top of the main body 11 in the second direction F2 (corresponding to the left-right direction of the vehicle body 200), so as to be arranged in the middle area of ​​the top of the main body 11.

[0277] Generally, in order to reduce the weight of the vehicle body 200 and achieve lightweight of the vehicle body 200, the middle channel beam 16 is designed as a hollow structure. In this embodiment, the hollow structure inside the middle channel beam 16 is used to form a wiring channel 16a for the wiring harness to pass through, which can not only reduce the weight but also realize the layout of the wiring harness, making the layout of the wiring harness more flexible and safe.

[0278] The middle channel beam 16 can be a sheet metal component integrally formed by stamping, die casting, etc., or it can be a beam structure formed by welding, welding or fastening of multiple sheet metal plates, as long as it can form a wiring channel 16a for wiring. The wiring channel 16a can be located inside the middle channel beam 16 (such as the channel inside the middle channel beam 16), or it can be located outside the middle channel beam 16 (such as a groove channel recessed outside the middle channel beam 16). The middle channel beam 16 can form the wiring channel 16a together with the main body 11, or it can enclose itself to form the wiring channel 16a. The middle channel beam 16 and the main body 11 can be connected to form a whole by welding, welding, fastening, etc.

[0279] The wiring channel 16a of the middle channel beam 16 can be extended along the extension direction of the middle channel beam 16 (i.e., the first direction F1), or can be designed in accordance with other requirements, without specific limitation, as long as the wiring can be realized. The middle channel beam 16 can be provided with multiple independent wiring channels 16a to realize the classified wiring of each type of wiring harness, which is convenient for installation and maintenance.

[0280] At this time, when the top of the box 10 is constructed as the chassis of the vehicle body 200 of the vehicle 1000 (the chassis is the floor of the vehicle body 200), there is no need to additionally set the middle channel beam 16, and the assembly efficiency of the vehicle body 200 is higher. At the same time, the hollow structure formed inside the middle channel beam 16 is used to form a wiring channel 16a for the wiring harness to pass through, which can not only reduce the weight, but also realize the layout of the wiring harness, making the layout of the wiring harness more flexible.

[0281] In some embodiments, please refer to Fig. 20 The middle channel beam 16 includes a beam seat 161, which is disposed on the top of the main body 11 and forms a wire groove 16a1 as a wiring channel 16a, and the wire groove 16a1 is recessed toward the accommodating cavity s.

[0282] The beam seat 161 is directly disposed on the main body 11 and can be fixed to the main body 11 by welding, fusion, fastening, etc. The beam seat 161 is formed with a wire groove 16a1, which is recessed toward the accommodating cavity s, that is, the wire groove 16a1 has a notch away from the accommodating cavity s, through which the wire harness is conveniently passed.

[0283] The wire passing groove 16a1 can be a continuous groove structure formed by being recessed on the surface of the side of the beam seat 161 away from the accommodating cavity s, or it can be a plurality of wire passing portions with grooves recessed toward the accommodating cavity constructed on the surface of the side of the beam seat 161 away from the accommodating cavity s, wherein the wire passing portions are arranged at intervals along a set direction, and the grooves of all the wire passing portions together form the wire passing groove 16a1 of the beam seat 161.

[0284] At this time, the beam seat 161 forms a wire groove 16a1 which is recessed toward the accommodating cavity s, so as to facilitate the installation of the wire harness.

[0285] In some embodiments, please refer to Fig. 20 There are multiple wire-passing grooves 16a1, and all of the wire-passing grooves 16a1 extend in the same direction and are spaced apart from each other.

[0286] A plurality of wire ducts 16a1 are provided, and the plurality of wire ducts 16a1 can extend and be spaced in the same direction (such as the first direction F1). Each wire duct 16a1 can be used for routing a type of wire harness (the classification of wire harnesses can be classified according to the different objects to which the wire harnesses are connected, such as a wire harness connected to an air conditioner, a wire harness connected to a headlight, a wire harness connected to a power drive system, etc.).

[0287] In this way, different types of wiring harnesses can be arranged independently, making wiring harness installation and maintenance more convenient.

[0288] In some embodiments, the wire channel 16a1 is configured to engage with the wire harness passing through the channel.

[0289] In order to realize the clamping of the wiring harness in the wire groove 16a1, the size of the slot of the wire groove 16a1 can be equal to the diameter of the wire harness passing through itself, or the two can be interference fit to realize the clamping. Specifically, a clamping piece can be designed in the slot of the wire groove 16a1, one end of the clamping piece is rotatably connected to one side of the slot of the wire groove 16a1, and the other end is detachably clamped to the other side of the slot of the wire groove 16a1. After the wire harness is arranged in the wire groove 16a1, the clamping piece is clamped to the slot of the wire groove 16a1 to clamp the wire harness in the wire groove 16a1.

[0290] In this way, the noise caused by the shaking of the wire harness can be avoided, and the problem of the wire harness being damaged due to the wire harness escaping from the wire groove 16a1 can also be avoided.

[0291] In some embodiments, please refer to Fig. 20 The middle channel beam 16 also includes a beam cover 162, which is detachably covered on the open side of the wire groove 16a1.

[0292] The open side of the wire groove 16a1 is the side where the notch of the wire groove 16a1 is located. The beam cover 162 is detachably covered on the open side of the wire groove 16a1, that is, the beam cover 162 is detachably connected to the beam seat 161. Specifically, the beam cover 162 is detachably connected to the beam seat 161, or the beam cover 162 is detachably connected to the beam seat 161 through a fastener (such as a bolt). The conventional setting in the art can be adopted to realize the detachable connection between the beam cover 162 and the beam seat 161, which is not limited or elaborated here.

[0293] At this time, by covering the slot of the wire slot 16a1 with the beam cover 162, external dust and moisture can be prevented from entering the wire slot 16a1 and corroding the wire harness. At the same time, the wire harness can be protected from external squeezing and damage, thereby improving the safety of the battery 100.

[0294] In some embodiments, the high pressure chamber s2 is in communication with the wiring channel 16a.

[0295] It is understandable that the wiring harness is usually led out from the high-voltage box in the high-voltage chamber s2 and then supplies power to the electrical devices, so the wiring harness passes through the high-voltage chamber s2 and the wiring channel 16a.

[0296] The high-pressure chamber s2 is connected with the wiring channel 16a, which means that the wiring bundle exiting through the high-pressure chamber s2 can enter the wiring channel 16a. Specifically, the high-pressure chamber s2 may have a wiring opening, which is opposite to the entrance of the wiring channel 16a. In this case, there is no obstacle between the wiring opening and the entrance of the wiring channel 16a, and the wiring bundle exiting through the wiring opening can directly enter the entrance of the wiring channel 16a without turning. Specifically, the high-pressure chamber s2 may have a wiring opening, which is not opposite to the entrance of the wiring channel 16a and is spatially connected. In this case, there is an obstacle between the wiring opening and the entrance of the wiring channel 16a (the obstacle may be formed by the middle channel beam 16 or other structures), and the wiring bundle exiting through the wiring opening needs to turn around the obstacle before entering the wiring channel 16a through the entrance of the wiring channel 16a.

[0297] At this time, the high-pressure chamber s2 is connected to the wiring channel 16a, so that the wiring harness coming out of the high-pressure chamber s2 can be arranged through the wiring channel 16a.

[0298] In some embodiments, please refer to Fig.17 and Fig.21 The middle channel beam 16 and the high-pressure chamber 15 are arranged adjacent to each other along the first direction F1.

[0299] The middle channel beam 16 usually corresponds to extending from the front chassis of the vehicle body 200 to the rear chassis of the vehicle body 200. The high-pressure chamber 15 is located on one side of the middle channel beam 16 in the first direction F1. The high-pressure chamber 15 can be arranged in front of or behind the middle channel beam 16. Specifically, the high-pressure chamber 15 can be arranged behind the middle channel beam 16. The high-pressure chamber 15 corresponds to the position of the rear chassis of the vehicle body 200. Since the position of the rear chassis of the vehicle body 200 can be used to install the seats 300 of the passenger compartment of the vehicle 1000, the high-pressure chamber 15 can be arranged by hiding it in the space below the seats 300, so that the space utilization rate of the passenger compartment of the vehicle 1000 is higher.

[0300] In some embodiments, please refer to Fig.11 The top surface h of the housing 10 is formed with a first area ha and a second area hb, the second area hb surrounds the first area ha, the second area hb is configured with a plurality of mounting portions 13a3, and the battery 100 is mounted on an external device through the mounting portions 13a3.

[0301] The first area ha and the second area hb may be formed by another structural division, such as by providing a seal 12 on the top of the box body 10 and dividing the top surface h of the box body 10 into a second area hb located outside the seal 12 and a first area ha located inside the seal 12. When the battery 100 is installed on an external device through the mounting portion 13a3, the first area ha and the second area hb are independent of each other.

[0302] The first area ha and the second area hb may also be formed by automatic partitioning on the top surface h. In this case, there is no other structural interval between the first area ha and the second area hb. When the battery 100 is installed on an external device through the mounting portion 13a3, the first area ha and the second area hb may also be connected to each other.

[0303] Furthermore, the area size of the first region ha and the area size of the second region hb are not limited, and the first region ha and the second region hb may be flat surfaces or uneven surfaces, and their specific structures are not limited.

[0304] In a specific embodiment, if the external device is the body 200 of the vehicle 1000, the mounting portion 13a3 is formed in the second area hb, so that the box 10 is connected to the body 200 through the relatively outer area of ​​the top. At this time, the box 10 is only subjected to the vertical force of the body 200, which reduces the force transmission path and is more conducive to improving the rigidity and lateral extrusion capacity of the entire vehicle.

[0305] It can be understood that the top surface h of the box body 10 may include other areas in addition to the first area ha and the second area hb. The other areas may be arranged between the two areas, around the two areas, or inside the two areas, which is not specifically limited in the present application.

[0306] In some embodiments, please refer to Figure 13 to Figure 14 The distance L2 between the geometric centers of the orthographic projections of each two adjacent mounting portions 13a3 on the second area hb is 80 mm-500 mm.

[0307] Orthographic projection refers to the projection of parallel projection lines perpendicular to the projection plane, that is, the mounting portion 13a3 is projected onto the second area hb in a direction perpendicular to the second area hb. When the mounting portion 13a3 is connected to an external device, each mounting portion 13a3 has a mounting force point, and the geometric center of the orthographic projection of each mounting portion 13a3 on the second area hb is the mounting force point. The distance between each two adjacent mounting force points (i.e., distance L2) is limited to 80-500mm to ensure that the battery 100 is evenly mounted on the external device and to improve the connection strength between the battery 100 and the external device.

[0308] In a specific embodiment, when the external device is the body 200 of the vehicle 1000, the mounting portion 13a3 is provided to include a plurality of mounting holes k1, and the box 10 of the battery 100 is connected to the body 200 through the plurality of mounting holes k1. The distance L2 between the geometric centers of adjacent mounting holes k1 is a limited range to ensure that the setting distance between the mounting holes k1 and the mounting holes k1 (i.e., the distance L2) is controllable, and by controlling the setting distance between the mounting holes k1 and the mounting holes k1, it is ensured that the plurality of mounting positions on the box 10 are basically evenly distributed, so that the body 200 is evenly stressed, thereby improving the connection stiffness of the body 200 and the box 10 at each position.

[0309] It can be understood that in some other embodiments, if personalized settings are required, for example, the mounting portion 13a3 needs to be divided into a dense mounting area and a sparse mounting area, the distance between the mounting holes k1 in the dense mounting area (i.e., the distance L2) can be set as close to the 80 mm side as possible, and the distance between the mounting holes k1 in the sparse mounting area (i.e., the distance L2) can be set as close to the 500 mm side as possible, so as to meet the personalized needs of local dense mounting and local sparse mounting.

[0310] In some embodiments, please refer to Figure 13 to Figure 14 The distance L2 between the geometric centers of the orthographic projections of each two adjacent mounting portions 13a3 on the second area hb is 80 mm-300 mm.

[0311] The distance L2 is within the range of 80 mm to 300 mm, which can ensure uniform connection between the battery 100 and the external device while ensuring connection strength between the battery 100 and the external device.

[0312] In some embodiments, please refer to Figure 13 to Figure 14 The top surface h of the box body 10 is also formed with a sealing area hc, which is arranged between the first area ha and the second area hb, and surrounds the first area ha. The sealing area hc is used to install a sealing member 12, and the sealing member 12 is used to contact with an external device.

[0313] The sealing area hc is also a part of the top surface h of the box body 10. It is located between the first area ha and the second area hb to separate the first area ha and the second area hb to form a non-connected relationship. The area of ​​the sealing area hc is not easy to be too large. Its main function is to install the seal 12 to achieve the mutual isolation of the first area ha and the second area hb. It is set to imitate the size, volume and shape of the seal 12 as much as possible to ensure that the seal 12 is completely assembled in the sealing area hc.

[0314] It can be understood that the seal 12 has different states in the sealing area hc. When the seal 12 contacts the external device and the box 10 is fixedly connected to the external device, the seal 12 is in a compressed state and will deform to a certain extent to ensure the sealing. When the battery 100 is separated from the external device, the seal 12 returns to its original state.

[0315] In a specific embodiment, if the external device is the body 200 of the vehicle 1000, the battery 100 can be installed at the bottom of the body 200 and sealed with the body 200 through the seal 12 on the sealing area hc. At this time, the first area ha forms a closed interior of the body 200, and the second area hb is the outside of the body 200. The fluid or solid particles outside the body 200 cannot leak into the interior of the body 200. For example, stones or liquids splashed during the driving of the vehicle 1000 cannot hit the interior of the body 200, thereby achieving the sealing and structural reliability of the interior of the body 200.

[0316] It is understandable that when the box body 10 includes a seal 12, the seal 12 is installed in the sealing area hc to seal and isolate the first area ha from the second area hb. The specific arrangement of the seal 12 has been described in detail above and will not be repeated here. In addition to the first area ha, the sealing area hc and the second area hb, the top surface h of the box body 10 may also include other areas, which may be arranged inside the first area ha or outside the second area hb, and the present application does not specifically limit this.

[0317] In some embodiments, please refer to Figure 13 to Figure 14 The shortest distance L1 between the geometric center of the orthographic projection of the mounting portion 13a3 in the second region hb and the outer edge of the sealing region hc is 30 mm-200 mm.

[0318] The mounting portion 13a3 is projected onto the second region hb in a direction perpendicular to the second region hb. When the mounting portion 13a3 is connected to an external device, each mounting portion 13a3 has a mounting force point. The geometric center of the orthographic projection of each mounting portion 13a3 on the second region hb is the mounting force point of each mounting portion 13a3. The shortest distance L1 between the geometric center of the orthographic projection of the mounting portion 13a3 on the second region hb and the outer edge of the sealing area hc is the shortest distance between the mounting force point of each mounting portion 13a3 and the outer edge of the sealing area hc.

[0319] The outer edge of the sealing area hc is the boundary line shared by the sealing area hc and the second area hb. Naturally, the sealing area hc also has an inner edge, and the inner edge is the boundary line shared by the sealing area hc and the first area ha. When the sealing member 12 is assembled, the two side edges of the sealing member 12 overlap with the inner and outer side edges of the sealing area hc, so that the sealing member 12 completely covers the sealing area hc.

[0320] The shortest distance L1 between the geometric center of the positive projection of the mounting portion 13a3 in the second area hb and the outer edge of the sealing area hc refers to the length of the perpendicular line from the geometric center of each mounting portion 13a3 to the outer edge of the sealing area hc, so as to ensure that the distance between the seal 12 and the mounting portion 13a3 is within a limited range.

[0321] In a specific embodiment, if the external device is the body 200 of the vehicle 1000, the shortest distance (i.e., distance L1) between the mounting force point of the mounting portion 13a3 and the outer edge of the sealing area hc is controlled to be 30mm-200mm. This can prevent the mounting force point of the mounting portion 13a3 from being too far away from the seal 12. On the one hand, it ensures the sealing effect of the seal 12 on the inside of the body 200. On the other hand, it reduces the mounting torque of each mounting portion 13a3 mounted on the body 200, effectively shortens the mounting force arm, and ensures the connection stiffness between the battery 100 and the body 200.

[0322] In some embodiments, please refer to Figure 13 to Figure 14 , the shortest distance L1 between the geometric center of the orthographic projection of the mounting portion 13a3 in the second region hb and the outer edge of the sealing region hc is 50 mm-100 mm.

[0323] Within the range of 50mm-100mm, the mounting force point of the mounting portion 13a3 can be prevented from being too far away from the seal 12, thereby ensuring the sealing and isolation effect of the seal 12 on the first area ha and the second area hb, while ensuring the connection strength between the battery 100 and the external device.

[0324] In some embodiments, the sealing region hc is coplanar with the second region hb.

[0325] Coplanarity, also known as coplane, means that the sealing area hc and the second area hb share the same plane in three-dimensional space. At this time, the sealing area hc and the second area hb are both constructed as flat planes and no angle is formed between them.

[0326] In a specific embodiment, when the external device is the body 200 of the vehicle 1000, the box 10 is assembled to the bottom of the body 200 through the top, the sealing area hc and the second area hb have the same height in the vertical direction, the sealing area hc is used to set the seal 12 for performing the sealing function, and the second area hb is constructed with a mounting part for performing the mounting function. At this time, the mounting force point of each mounting part 13a3 is located in the same plane and at the same height as the sealing area hc, and the mounting force point and the seal 12 only bear the force in the vertical direction, thereby reducing the lateral structural force of the box 10 and the body 200 and improving the rigidity of the vehicle 1000.

[0327] In some embodiments, please refer to Fig.11 , the first area ha, the second area hb and the sealing area hc are coplanar.

[0328] At this time, the coplanar plane of the first area ha, the second area hb and the sealing area hc is in contact with the external device, and the contact area h of the top surface of the box 10 with the external device is larger, which helps to improve the connection reliability between the box 10 and the external device. At the same time, the top structure of the box 10 is relatively flat and more beautiful.

[0329] When the external device is the body 200 of the vehicle 1000, the internal area of ​​the body 200, the external area of ​​the body 200 and the sealing area hc on the top surface h of the box body 10 are all arranged in the same plane, ensuring that the internal area of ​​the body 200 and the external area of ​​the body 200 of the box body 10 only bear load in the vertical direction, thereby further reducing the lateral structural force of the vehicle 1000.

[0330] In some embodiments, please refer to Fig.14 , when the mounting portion 13a3 includes at least one mounting hole k1, all mounting holes k1 penetrate the second area hb.

[0331] For the introduction of the mounting hole k1, please refer to the above records and will not be repeated here. When the mounting hole k1 is set to pass through the second area hb, the connecting member can be connected to the top of the box body 10 from the second area hb which is relatively outer at the top of the box body 10 when connecting the box body 10 with an external device, so as to improve the connection strength between the box body 10 and the external device.

[0332] In some embodiments, please refer to Fig.14 There is a reserved distance between the outer edge of the sealing area hc close to the second area hb and the circumferential side wall n of the main body 11.

[0333] For the introduction of the n holes on the circumferential side wall of the main body 11, please refer to the above records and will not be elaborated here. The outer edge of the sealing area hc close to the second area hb is not coplanar with the plane of the circumferential side wall n of the main body 11 in the vertical direction, so that the outer edge of the sealing area hc has a certain reserved distance from the outer edge of the top surface h1 of the main body 11.

[0334] When the seal 12 is assembled and has not been deformed, the two side edges of the seal 12 coincide with the inner and outer side edges of the sealing area hc. When the seal 12 is sealed and connected to an external device, the seal 12 is deformed and its two sides overflow the sealing area hc, with one side extending over the sealing area hc into the first area ha, and the other side extending over the sealing area hc into the second area hb.

[0335] A reserved distance is set between the outer edge of the sealing area hc close to the second area hb and the axial side wall of the main body 11, which can reserve sufficient deformation space for the deformation of the seal 12 and prevent the seal 12 from overflowing over the top surface h1 of the main body 11 to other areas on the top of the box body 10 and interfering with structures in other areas when deforming.

[0336] In some embodiments, please refer to Fig.11 and Fig.13 The top surface h1 of the main body 11 defines at least a portion of the top surface h of the box body 10 .

[0337] The top surface h1 of the main body 11 refers to the side surface of the main body 11 located at the top thereof and away from the accommodating cavity s. When the box body 10 includes both the main body 11 and the lateral beam 13 in the above-mentioned embodiment, the top surface h of the box body 10 can be defined by the top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13. Among them, the top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13 can be coplanar. At this time, the contact area between the top surface h of the box body 10 and the external device is large, which helps to improve the connection reliability between the box body 10 and the external device. At the same time, the top structure of the box body 10 is relatively flat and more beautiful. Of course. The top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13 may not be coplanar.

[0338] In other embodiments, the box body 10 may also include other structures in addition to the main body 11 and the lateral beam 13. In this case, the top surface h of the box body 10 is defined by the top surface h1 of the main body 11, the top surface h2 of the lateral beam 13 and the top surfaces of other structures.

[0339] It can be understood that the first area ha and the sealing area hc are located on the top surface h1 of the main body 11. In addition to the first area ha and the sealing area hc, the top surface h1 of the main body 11 may also include other areas, which are not specifically limited here.

[0340] In some embodiments, please refer to Fig.11 and Fig.13 , at least a portion of the second region hb and the first region ha are located on the top surface h1 of the body 11 .

[0341] The top surface h1 of the main body 11 is divided into a first area ha, a sealing area hc enclosed outside the first area ha, and a second area hb enclosed outside the sealing area hc. When the sealing member 12 in the sealing area hc is compressed and deformed, one side edge of the sealing member 12 extends into the second area hb on the top surface h1 of the main body 11.

[0342] It can be understood that the second area hb on the top surface h1 of the main body 11 is the reserved distance between the outer edge of the sealing area hc close to the second area hb and the circumferential side wall n of the main body 11, so as to ensure that sufficient deformation space is reserved for the deformation of the seal 12, so as to avoid the seal 12 from crossing the top surface h1 of the main body 11 and overflowing onto the lateral beam 13 when deforming.

[0343] In some embodiments, the mounting portion 13 a 3 is located in a second area hb defined by a top surface h2 of the lateral beam 13 .

[0344] The mounting hole k1 is provided in the second area hb defined by the top surface h2, and also has the beneficial effect of the mounting portion 13a3 being provided on the top of the lateral beam 13, which is not described here.

[0345] When the box body 10 includes both the main body 11 and the lateral beam 13 in the above embodiment, the top surface h of the box body 10 can be defined by the top surface h1 of the main body 11 and the top surface h2 of the lateral beam 13. A reserved distance is set between the outer edge of the sealing area hc close to the second area hb and the axial side wall of the main body 11, so that sufficient deformation space can be reserved for the deformation of the sealing member 12, so as to prevent the sealing member 12 from overflowing over the top surface h1 of the main body 11 to the top surface h2 of the lateral beam 13 when deforming, thereby interfering with the mounting of the mounting portion 13a3 on the lateral beam 13.

[0346] In some embodiments, please refer to Fig.14 The mounting portion 13a3 is disposed on the first sub-beam 13a1 and / or the second sub-beam 13a2, and in the first direction F1 and / or the second direction F2, a distance L2 between the geometric centers of the orthographic projections of each two adjacent mounting portions 13a3 on the second region hb is 80 mm-500 mm.

[0347] The introduction of the first sub-beam 13a1 and the second sub-beam 13a2 can refer to the above description, and will not be repeated here. The two first sub-beams 13a1 are extended along the first direction F1, and the two second sub-beams 13a2 are extended along the second direction F2. The mounting portion 13a3 is respectively provided on the first sub-beam 13a1 and / or the second sub-beam 13a2, so that the mounting portion 13a3 is extended along the first direction F1 and / or the second direction F2, thereby forming a uniform mounting fixation with the external device in multiple directions, so as to further improve the connection method between the external device and the box body 10.

[0348] Furthermore, it is defined that in a certain set direction, the distance between the geometric centers of the orthographic projections of each two adjacent mounting portions 13a3 on the second region hb and the distance between the geometric centers of adjacent mounting holes k1 are within a limited range, so as to ensure that the setting distance between the mounting holes k1 and the mounting holes k1 along the extension direction of the first sub-beam 13a1 and along the extension direction of the second sub-beam 13a2 is controllable, so that the vehicle body 200 is subjected to uniform force.

[0349] It can be understood that when the box body 10 includes the middle channel beam 16 , the middle channel beam 16 is located in the first area ha, so that the middle channel beam 16 can be located in the middle area of ​​the main body 11 .

[0350] In one embodiment, the box 10 includes the main body 11 and the high-voltage chamber 15. The main body 11 is provided with the battery chamber s1. The high-voltage chamber 15 is provided at the top of the main body 11 and is located in the first area ha. The high-voltage chamber 15 is enclosed by itself or together with the main body 11 to form the high-voltage chamber s2. Since the first area ha forms most of the top area of ​​the main body 11, the high-voltage chamber 15 is arranged in the first area ha, which can improve the space utilization of the first area ha.

[0351] On the other hand, according to some embodiments of the present application, please refer to Figure 3 and Figure 4 The present application provides a battery 100, comprising the box 10 and the battery cell 20 described in any of the above embodiments, wherein the battery cell 20 is accommodated in the accommodation cavity s. Since the battery 100 comprises the box 10, it has all the beneficial effects of the box 10, which will not be described in detail here.

[0352] In some embodiments, the battery 100 further includes a high-voltage box (not shown), and the box body 10 is formed with a battery cavity s1 and a high-voltage cavity s2 which are independently arranged from each other. The battery cavity s1 is used to accommodate the battery cell 20, and the high-voltage cavity s2 is used to accommodate the high-voltage box.

[0353] The high-voltage box is an important safety barrier for the battery group 100. It is equipped with a high-voltage control system, which is mainly used to: connect or disconnect the high-voltage circuit according to the electronic control requirements of the whole vehicle; provide current and leakage detection terminals; when the external current of the battery group 100 is too large, realize controllable load cut-off; when the external circuit of the battery group 100 is short-circuited, realize the disconnection of the high-voltage circuit to prevent the battery group 100 from catching fire; when repairing the battery group 100, the high-voltage circuit can be conveniently cut off.

[0354] At this time, the high voltage box connects and collects the current of all battery cells 20 and provides safe power to the outside, so that the battery 100 can safely supply power to the outside. The specific structure of the high voltage box can refer to the conventional settings in the field, and this application does not involve specific improvements of the high voltage box.

[0355] In some embodiments, please refer to Fig.10 and Fig. 20 The box body 10 includes a main body 11, which encloses a receiving cavity s. The main body 11 includes a carrier 11a located at the top of the box body 10 and used to define the receiving cavity s. The battery cell 20 is disposed on the carrier 11a.

[0356] The description of the main body 11, the top of the box 10, and the bearing member 11a can refer to the above description and will not be repeated here. At this time, the bearing member 11a is a component that can bear the weight of the battery cell 20, and can be a bearing plate, a bearing block, a bearing sheet, a bearing frame, etc., without specific limitation.

[0357] Specifically, the battery cell 20 may be disposed below the carrier 11 a and bear the force on the top of the battery 100 case 10 together with the carrier 11 a , thereby improving the rigidity of the top of the battery 100 case 10 .

[0358] In some embodiments, please refer to Fig.10 and Fig. 20 , the battery cell 20 is suspended on the supporting member 11a.

[0359] The battery cell 20 is suspended on the carrier 11a, which means that the battery cell 20 is arranged below the carrier 11a in the vertical direction, and the weight of the battery cell 20 is borne by the carrier 11a. The battery cell 20 is suspended on the carrier 11a in the following ways: the battery cell 20 is directly bonded to the lower surface of the carrier 11a, the battery cell 20 is connected to the carrier 11a by fasteners and is located below the carrier 11a, the battery cell 20 is hung on the carrier 11a by hooks and is located below the carrier 11a, etc.

[0360] At this time, the battery cell 20 is suspended below the carrier 11a, and the bottom cover 11c is located at the bottom of the box 10. When the interior of the battery 100 is repaired, the battery cell 20 can be exposed by removing the bottom cover 11c without removing the carrier 11a, which makes the maintenance of the battery 100 more convenient. At the same time, when repairing the battery 100, the battery cell 20 can be disassembled and assembled on the carrier 11a from below, especially when the carrier 11a is subjected to force as at least a part of the chassis of the vehicle 1000, it is only necessary to disassemble and assemble the battery cell 20 from the bottom of the carrier 11a without removing the carrier 11a, which facilitates the maintenance of the battery 100.

[0361] In some embodiments, the battery cell 20 is bonded to the carrier 11 a .

[0362] Specifically, the battery cell 20 and the carrier 11a can be bonded with adhesives such as epoxy resin glue, acrylate glue, etc., which are not particularly limited. At this time, the battery cell 20 and the carrier 11a are bonded, which not only facilitates the connection, but also simplifies the structure of the battery 100.

[0363] Fig. 22 It is a schematic diagram of the structure of a battery cell 20 in some embodiments of the present application.

[0364] In some embodiments, please refer to Fig. 22 The outer surface of the battery cell 20 facing the carrier 11 a is a first outer surface m1 . The battery cell 20 includes an electrode terminal 21 a . The electrode terminal 21 a is arranged on the outer surface of the battery cell 20 except the first outer surface m1 .

[0365] As described above, the electrode terminal 21a is used to electrically connect to the electrode assembly 23 inside the battery cell 20, so as to be used as a component for outputting or inputting the electrical energy of the battery cell 20. The electrode terminal 21a at least partially extends out of the battery cell 20 to be electrically connected to the outside. The series connection and parallel connection between the battery cells 20 are both realized through the series connection and parallel connection between their respective electrode terminals 21a. The electrode terminal 21a has conductivity to realize electrical transmission, and can be an aluminum electrode, a copper electrode, etc.

[0366] The electrode terminal 21a is arranged on the outer surface of the battery cell 20 except the first outer surface m1. The first outer surface m1 faces the carrier 11a, and is usually a smooth surface, on which there are no protruding or recessed structures such as the electrode terminal 21a and the injection hole. When the battery cell 20 is suspended on the carrier 11a, the first outer surface m1 is the outer surface of the battery cell 20 facing upward. Specifically in one embodiment, the battery cell 20 includes the shell 22 and the end cover 21 mentioned above, and the shell 22 and the end cover 21 form an internal environment for the battery cell 20 to accommodate the electrode assembly 23. The end cover 21 is located at one end of the shell 22, and the electrode terminal 21a is arranged on the end cover 21. At this time, any outer surface of the shell 22 can be used as the first outer surface m1 of the battery cell 20.

[0367] The electrode terminal 21a includes a positive terminal and a negative terminal, the positive terminal is used to be electrically connected to the positive electrode sheet in the electrode assembly 23, and the negative terminal is used to be electrically connected to the negative electrode sheet in the electrode assembly 23. It should be noted that the positive terminal and the negative terminal can be arranged on the same outer surface of the battery cell 20 (such as a square battery cell), or can be arranged on two different outer surfaces of the battery cell 20 (such as a cylindrical battery cell). When the positive terminal and the negative terminal are arranged on two different outer surfaces of the battery cell 20, the first outer surface m1 is a surface of the battery cell 20 that is different from the two outer surfaces.

[0368] In addition to the battery cells 20, the battery 100 is usually provided with components such as sampling harnesses, high-voltage wires, and protective structures for protecting the battery cells 20 that electrically connect the battery cells 20. At this time, the electrode terminal 21a is arranged on the surface of the battery cell 20 other than the first outer surface m1. When the sampling harness, high-voltage harness, protective structure, and other components are placed on the electrode terminal 21a, they will not be restricted by the carrier 11a, but can be arranged through the space between the battery cell 20 and other structures of the main body 11 other than the carrier 11a (such as through the space between the battery cell 20 and the bottom cover 11c and / or the space between the battery cell 20 and the inner side of the main body 11), which is more convenient for the arrangement of each component. At the same time, since the first outer surface m1 is a smooth surface, the first outer surface m1 can be fitted with the carrier 11a, so that the battery cell 20 and the carrier 11a can be fitted and installed, and there is no need to reserve space between the battery cell 20 and the carrier 11a, which helps to improve the space utilization of the battery 100.

[0369] In some embodiments, please refer to Fig. 22 The battery cell 20 has a second outer surface m2 disposed opposite to the first outer surface m1, and the electrode terminal 21a is arranged on the second outer surface.

[0370] The second outer surface m2 is an outer surface of the battery cell 20 that is disposed opposite to the first outer surface m1. When the battery cell 20 is suspended on the supporting member 11a, the second outer surface m2 is opposite to the bottom cover 11c.

[0371] Furthermore, the battery cell 20 and the bottom cover 11c can be spaced apart. In this case, the external force acting on the bottom cover 11c can be prevented from being transmitted to the battery cell 20 and damaging the battery cell 20. Especially when the battery 100 is installed at the bottom of the vehicle 1000 and the bottom cover 11c is at the lowest point of the battery 100, stones on the ground can easily fly to the bottom of the battery 100 and hit the bottom cover 11c during the driving of the vehicle 1000. At this time, the buffer space can interrupt the transmission of external force to the battery cell 20 and affect the battery cell 20.

[0372] When the battery cell 20 is spaced apart from the bottom cover 11c, there is a buffer space between the second outer surface m2 and the bottom cover 11c, and the portion of the electrode terminal 21a extending outside the battery cell 20 is located in the buffer space, so that the wiring harness and connecting piece connected to the electrode terminal 21a can be arranged in the buffer space. At the same time, the buffer space also has the function mentioned above of blocking the external force hitting the bottom cover 11c from acting on the battery cell 20 and damaging the battery cell 20. Therefore, the buffer space can not only interrupt the influence of external force, but also lay out the wiring harness, etc., killing two birds with one stone. In addition, the space utilization of the buffer space and the battery 100 is also improved.

[0373] On the other hand, the present application also provides an electric device. The electric device includes the battery 100 provided in any of the above embodiments, and the battery 100 is used to provide electric energy for the electric device. The introduction of the electric device is referred to the records in the above description, and will not be repeated here.

[0374] Since the electrical device includes the battery 100, it has all the beneficial effects of the above embodiments, which will not be described in detail here.

[0375] Figure 1 This is a schematic diagram of a battery 100 applied to a vehicle body 200 in some embodiments of the present application.

[0376] In some embodiments, the electric device includes a vehicle 1000, and the battery 100 is disposed at the bottom of a body 200 of the vehicle 1000. The introduction of the vehicle 1000 is described in the above description, and will not be repeated here.

[0377] The body 200 of the vehicle 1000 refers to the part of the vehicle 1000 used for carrying people and loading goods, including the cockpit, passenger compartment, engine compartment, luggage compartment, etc. The body 200 usually includes an outer shell and doors, windows, decorative parts, seats 300, air conditioning devices, etc. arranged on the outer shell. The outer shell usually refers to the structure composed of the main load-bearing components such as the longitudinal beams, cross beams, chassis and pillars of the vehicle 1000 and the sheet metal parts connected to them. In the embodiment of the present application, the battery 100 is arranged at the bottom of the body 200 mainly means that the battery 100 is arranged at the bottom of the outer shell.

[0378] At this time, the battery 100 is arranged at the bottom of the vehicle body 200 , which does not occupy the space inside the vehicle body 200 and helps to reduce the volume and weight of the vehicle body 200 .

[0379] In some embodiments, the battery 100 is connected to the vehicle body 200 via the top of the housing 10 , and the top of the housing 10 is configured to form at least a portion of a chassis of the vehicle body 200 .

[0380] As a part of the vehicle body 200, the chassis is composed of a transmission system, a running system, a steering system and a braking system. It is used to support and install the engine of the vehicle 1000 and its components and assemblies to form the overall shape of the vehicle 1000, bear the engine power and ensure normal driving.

[0381] The top of the bottom box 10 of the chassis located at the vehicle body 200 directly serves as at least a part of the chassis. That is, the top of the box 10 is used to form at least a part of the chassis of the vehicle body 200. In this way, the top of the box 10 is integrated with the chassis of the vehicle body 200, so that the space occupied by the gap between the traditional chassis and the battery 100 can be divided into the battery 100 to increase the space of the battery 100, which helps to increase the energy of the battery 100, and further improve the endurance of the vehicle 1000.

[0382] According to some embodiments of the present application, the electric device includes a vehicle 1000, and a battery 100 is disposed at the bottom of the vehicle body 200 of the vehicle 1000. The battery 100 includes a box body 10 and a battery cell 20, and the box body 10 includes a support 11a located at the top thereof, and the battery cell 20 is located in the box body 10 and suspended on the support 11a, and the electrode terminal 21a of the battery cell 20 is located on the outer surface of the battery cell 20 away from the support 11a, and the support 11a forms at least a part of the chassis of the vehicle 1000. At this time, the battery 100 is suspended on the support 11a alone, which can improve the strength of the support 11a and then improve the strength of the top of the battery cell 20, so that the support 11a can meet certain force requirements when used as a chassis. At the same time, the electrode terminal 21a of the battery cell 20 is away from the carrier 11a, so the battery cell 20 can be directly installed on the carrier 11a, eliminating the gap between the battery cell 20 and the carrier 11a, and the saved gap can be used to increase the installation space of the battery cell 20, which can improve the energy of the battery 100 and further improve the endurance of the vehicle 1000.

[0383] According to some embodiments of this application, please refer to Figure 1 , Figure 4 , Figure 13 to Figure 14 , the electrical device includes a vehicle, and a battery is arranged at the bottom of the vehicle body. The battery includes a box body and a battery cell, the box body includes a top surface facing away from the accommodating cavity, the top surface is formed with a first area, a second area and a sealing area located therebetween, the sealing area surrounds the first area, the sealing area is used to install a seal, the second area is constructed with a plurality of mounting holes, and the battery is mounted on an external device through the mounting holes so that the seal is in sealing contact with the external device. In addition, the sealing area is coplanar with the second area to ensure that the mounting force point of each mounting part is located in the same plane and at the same height as the sealing area, and the mounting force point and the seal are both subjected to vertical force bearing, thereby reducing the lateral structural force of the box body and improving the rigidity of the vehicle.

[0384] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0385] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A box for a battery, the box having a receiving cavity for receiving a battery cell and a top surface facing away from the receiving cavity; The top surface of the box body is formed with a first area, a second area and a sealing area therebetween, the sealing area surrounds the first area, the sealing area is used to install a sealing member, the second area is configured with a mounting portion, and the battery is mounted on an external device through the mounting portion so that the sealing member contacts the external device; in, The first area, the second area and the sealing area are coplanar; the box body includes a main body, and the main body encloses the accommodating cavity.

2. The box according to claim 1, wherein: The mounting portion includes at least one mounting hole, and the mounting hole passes through the second area.

3. The box according to any one of claims 1 to 2, wherein: The box body also includes the sealing member, which is installed in the sealing area.

4. The box according to any one of claims 1 to 2, wherein: The top surface of the main body defines at least a portion of the top surface of the box body, and the first area and the sealing area are located on the top surface of the main body.

5. The box according to claim 4, wherein: The box body includes lateral beams, the main body has a circumferential side wall arranged around the top outer edge thereof, the lateral beams are arranged on the circumferential side wall, and the top surface of the main body and the top surface of the lateral beams jointly define and form the top surface of the box body.

6. The box according to claim 5, wherein: The mounting portion is located in the second area defined by the top surface of the lateral beam.

7. The box according to any one of claims 5 to 6, wherein: A reserved distance is provided between an outer edge of the sealing area close to the second region and a circumferential side wall of the main body.

8. The box according to claim 6, wherein: The lateral beam comprises at least two sub-beams, which are arranged in sequence along the circumferential side wall at intervals, and the top surface of each sub-beam defines a part of the top surface of the lateral beam; and the sub-beam is provided with the mounting portion.

9. The housing according to claim 5, wherein: The main body includes a carrier and a frame, the frame encloses a cavity with at least the top thereof penetrating therethrough, the carrier covers the top of the cavity, and the carrier and the frame enclose at least a portion of the accommodating cavity; The lateral beam is disposed on the circumferential side wall defined by the frame.

10. A battery comprising: The box as described in any one of claims 1 to 9; and The battery cell is accommodated in the accommodation cavity.

11. The battery according to claim 10, wherein The box body comprises a main body, which encloses and forms the accommodating cavity. The main body comprises a supporting member located at the top of the box body and used for defining the accommodating cavity. The battery cell is arranged on the supporting member.

12. The battery according to claim 11, wherein The battery cell is suspended on the supporting member.

13. The battery according to claim 12, wherein: The battery cell is bonded to the carrier.

14. The battery according to any one of claims 11 to 13, wherein: An outer surface of the battery cell facing the carrier is a first outer surface. The battery cell includes an electrode terminal. The electrode terminal is arranged on an outer surface of the battery cell except the first outer surface.

15. The battery according to claim 14, wherein The battery cell has a second outer surface disposed opposite to the first outer surface, and the electrode terminal is arranged on the second outer surface.

16. An electrical device, comprising the battery according to any one of claims 10 to 15, wherein the battery is used to provide electrical energy for the electrical device.

17. The electrical device according to claim 16, wherein: The power-consuming device includes a vehicle, and the battery is arranged at the bottom of the vehicle body.

18. The electrical device according to claim 17, wherein: The battery is connected to the vehicle body via a top portion of the box body, and the top portion of the box body is configured to form at least a portion of the vehicle body chassis.

Images