Battery box, battery and vehicle

Abstract

The utility model discloses a battery box, a battery and a vehicle, the battery box is provided with a containing space for containing a battery cell assembly, the battery box comprises a mounting beam, the mounting beam is an integrally-formed part, the mounting beam comprises a first beam body and a second beam body, the first beam body and the second beam body extend in the first direction and are arranged side by side in the second direction, and the first beam body and the second beam body are arranged in parallel in the second direction; at least part of the second beam body extends out of the containing space, the second beam body is used for being connected with external equipment, and the first direction is perpendicular to the second direction. According to the battery box disclosed by the invention, the battery box comprises the mounting beam, the mounting beam comprises the first beam body and the second beam body, the second beam body extends out of the accommodating space and is used for being connected with the external equipment, and the mounting beam is an integrally formed part, so that the structural strength of the mounting beam can be improved, and the assembly process of the mounting beam can be simplified; the assembly efficiency of the mounting beam is improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and more particularly to a battery box, a battery, and a vehicle. Background Art

[0002] In the related art, a power battery pack is a main component of an electric vehicle. Generally, a cross beam is provided in the power battery pack for separating or fixing battery cells, and a seat beam is provided above the battery pack. Currently, the cross beam and the seat beam are independently arranged, the structure is not simplified enough, the installation process is cumbersome, and it is not convenient for the installation of the cross beam and the seat beam. Summary of the Utility Model

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present application is to provide a battery box in which the installation beam is an integrally formed part, which can not only increase the structural strength of the installation beam, but also simplify the assembly process of the installation beam and improve the assembly efficiency of the installation beam.

[0004] The present application also provides a battery having the above battery box.

[0005] The present application also provides a vehicle having the above battery.

[0006] According to the battery box of the first aspect embodiment of the present application, the battery box has a receiving space for receiving a battery cell assembly. The battery box includes: an installation beam, the installation beam is an integrally formed part, the installation beam includes a first beam body and a second beam body, both the first beam body and the second beam body extend along a first direction, and are arranged side by side in a second direction. In the second direction, at least a part of the second beam body extends out of the receiving space, and the second beam body is used for connecting with an external device, wherein the first direction is perpendicular to the second direction.

[0007] According to the battery box of the embodiment of the present application, the battery box includes an installation beam, the installation beam includes a first beam body and a second beam body, the second beam body extends out of the receiving space for connecting with an external device, and the installation beam is an integrally formed part, which can not only increase the structural strength of the installation beam, but also simplify the assembly process of the installation beam and improve the assembly efficiency of the installation beam.

[0008] In some embodiments, the battery box further includes a battery guard plate. In the second direction, the battery guard plate is located on the side of the battery cell assembly facing the external device, and the installation beam has a lapping portion for carrying the battery guard plate.

[0009] In this embodiment, by providing that the battery box includes a battery guard plate and the installation beam has a lapping portion for carrying the battery guard plate, the lapping portion can be used to support the battery guard plate, and the lapping portion can also play a role in pre-positioning the battery guard plate.

[0010] In some embodiments, the overlapping portion is located on one side of the first beam body in the third direction. In the second direction, the distance between the surface of the overlapping portion facing the second beam body and the surface of the first beam body facing the second beam body is greater than or equal to the thickness of the battery guard plate, where the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0011] In this embodiment, by setting the outer surface of the battery guard plate to be lower than the surface of the first beam body or the outer surface of the battery guard plate to be flush with the surface of the first beam body, the battery guard plate is prevented from protruding, thus avoiding scratching other devices by the battery guard plate.

[0012] In some embodiments, in the third direction, the width of the first beam body is greater than the width of the second beam body.

[0013] In this embodiment, by setting the width of the first beam body to be greater than the width of the second beam body, one side of the first beam body facing the external device can be configured as an overlapping portion, and the space outside the battery box occupied by the second beam body can also be reduced.

[0014] In some embodiments, in the width direction of the first beam body, the second beam body is located in the middle of the first beam body.

[0015] In this embodiment, by setting the second beam body to be located in the middle of the first beam body in the width direction of the first beam body, the structural strength of the entire mounting beam can be improved, and the risk of the second beam body breaking from the first beam body can be avoided.

[0016] In some embodiments, the battery guard plate has an avoidance space, and at least part of the second beam body extends out of the avoidance space.

[0017] In this embodiment, by providing an avoidance space on the battery guard plate and at least part of the second beam body extending out of the avoidance space, the second beam body can be conveniently connected to external devices.

[0018] In some embodiments, the length of the first beam body is greater than the length of the second beam body, and the battery guard plate surrounds the outer periphery of the second beam body.

[0019] In this embodiment, by setting the length of the first beam body to be greater than the length of the second beam body and the battery guard plate surrounding the outer periphery of the second beam body, the battery guard plate is a whole, which can facilitate the installation of the battery guard plate.

[0020] In some embodiments, the battery guard plate includes a first battery guard plate and a second battery guard plate, and the first battery guard plate and the second battery guard plate are respectively located on both sides of the mounting beam in the third direction.

[0021] In this embodiment, a battery guard plate includes a first battery guard plate and a second battery guard plate, and an avoidance space is defined between the first battery guard plate and the second battery guard plate; when the first battery guard plate and the second battery guard plate need to be replaced, the corresponding first battery guard plate or the second battery guard plate can be replaced, which can save the cost of replacing the battery guard plate.

[0022] In some embodiments, the battery shield has a liquid cooling channel therein.

[0023] This embodiment provides a liquid cooling channel in the battery guard plate to heat or cool the battery cell assembly.

[0024] In some embodiments, at least one first notch is provided on the second beam body, and a first connecting pipe communicating with the liquid cooling channel is provided in the first notch.

[0025] In this embodiment, at least one first notch is provided on the second beam body, and a first connecting pipe connected to the liquid cooling channel is provided in the first notch. The first connecting pipe is used to connect the liquid cooling channel of the first battery guard plate and the liquid cooling channel of the second battery guard plate, so that the liquid cooling channel of the first battery guard plate and the liquid cooling channel of the second battery guard plate can be constructed into a loop.

[0026] In some embodiments, the first notch has an opening facing one side of the second direction, and the battery box further includes a reinforcing bracket fixedly connected to the opening.

[0027] In this embodiment, a reinforcing bracket is provided, which is fixedly connected to the opening and is used to increase the structural strength of the second beam.

[0028] In some embodiments, the reinforcing bracket has a second notch opposite to the first notch.

[0029] In this embodiment, a second notch is provided in the reinforcing bracket, and the second notch avoids the first notch of the second beam body, so that the reinforcing bracket can be connected to the outer peripheral side of the second beam body, so as to further increase the structural strength of the second beam body.

[0030] In some embodiments, two first notches are provided, and the two first notches are respectively located at two ends of the second beam body.

[0031] In this embodiment, two first notches are respectively located at the two ends of the second beam body, and two first connecting pipes are also respectively located at the two ends of the second beam body. The two first connecting pipes are arranged close to the edge of the battery box, which can facilitate the assembly of the first connecting pipes.

[0032] In some embodiments, the battery guard plate includes a first battery guard plate and a second battery guard plate, and the first battery guard plate and the second battery guard plate are respectively located on both sides of the mounting beam in the third direction. The battery box also includes a first mounting longitudinal beam and a second mounting longitudinal beam arranged in parallel and spaced apart. The two ends of the first beam body are respectively fixedly connected to the first mounting longitudinal beam and the second mounting longitudinal beam. There is a first spacing space between at least one end of the second beam body and the first mounting longitudinal beam and / or the second mounting longitudinal beam. A liquid cooling pipeline for connecting the liquid cooling channel of the first battery guard plate and the liquid cooling channel of the second battery guard plate is provided in the first spacing space.

[0033] In this embodiment, a first spacing space is provided between at least one end of the second beam body and the first mounting longitudinal beam and / or the second mounting longitudinal beam. A liquid cooling pipeline is provided in the first spacing space for connecting the liquid cooling channel of the first battery guard plate and the liquid cooling channel of the second battery guard plate, so that the liquid cooling channel of the first battery guard plate and the liquid cooling channel of the second battery guard plate can be constructed into a loop.

[0034] In some embodiments, the battery box further includes: a fixing bracket connected between at least one end of the second beam body and the first mounting longitudinal beam and / or the second mounting longitudinal beam.

[0035] This embodiment provides a fixing bracket connected between at least one end of the second beam and the first mounting longitudinal beam and / or the second mounting longitudinal beam to increase the connection strength between the second beam and the first mounting longitudinal beam or the second mounting longitudinal beam.

[0036] In some embodiments, the battery box further includes: a bottom liquid cooling plate, wherein in the second direction, the bottom liquid cooling plate is located on a side of the battery cell assembly facing away from the external device.

[0037] In this embodiment, a bottom liquid cooling plate is provided, and the bottom liquid cooling plate can be used to heat or cool the battery cell assembly.

[0038] In some embodiments, the bottom liquid cooling plate includes a first liquid cooling plate and a second liquid cooling plate, and the first liquid cooling plate and the second liquid cooling plate are respectively located on both sides of the mounting beam in the third direction.

[0039] In this embodiment, the bottom liquid cooling plate includes a first liquid cooling plate and a second liquid cooling plate. When the first liquid cooling plate and the second liquid cooling plate need to be replaced, the corresponding first liquid cooling plate or the second liquid cooling plate can be replaced, which can save the cost of replacing the liquid cooling plate.

[0040] In some embodiments, the battery box further includes a first mounting longitudinal beam and a second mounting longitudinal beam that are arranged in parallel at intervals, and there is a second spacing space between at least one end of the mounting beam and the first mounting longitudinal beam and / or the second mounting longitudinal beam. A second connecting pipe for connecting the first liquid cooling plate and the second liquid cooling plate is arranged in the second spacing space.

[0041] In this embodiment, by setting that there is a second spacing space between at least one end of the mounting beam and the first mounting longitudinal beam and / or the second mounting longitudinal beam, and a second connecting pipe for connecting the first liquid cooling plate and the second liquid cooling plate is arranged in the second spacing space, and the second connecting pipe is used to connect the first liquid cooling plate and the second liquid cooling plate, the first liquid cooling plate and the second liquid cooling plate can be configured into a loop.

[0042] In some embodiments, the battery box further includes: a connecting bracket, and the connecting bracket is connected between at least one end of the mounting beam and the first mounting longitudinal beam and / or the second mounting longitudinal beam.

[0043] In this embodiment, by setting the connecting bracket, which is connected between at least one end of the mounting beam and the first mounting longitudinal beam and / or the second mounting longitudinal beam, it is used to increase the connection strength between the mounting beam and the first mounting longitudinal beam or the second mounting longitudinal beam.

[0044] In some embodiments, the second beam body has a first cavity and a second cavity, the second cavity is located on a side of the first cavity away from the first beam body, and in a second direction, the height of the second cavity is greater than the height of the first cavity, and a fixing member connected to the external device is located in the second cavity.

[0045] In this embodiment, by setting that the second beam body has a first cavity and a second cavity, the weight and cost of the second beam body can be reduced; and the external device is fixed to the second beam by the fixing member, and the height of the second cavity is greater than the height of the first cavity, which is convenient for the fixing member to be placed in the second cavity.

[0046] The battery according to the second aspect embodiment of the present application includes: the battery box according to the first aspect embodiment of the present application above.

[0047] The battery according to the embodiment of the present application, by setting the above battery box, and the mounting beam is an integrally formed part, can not only increase the structural strength of the mounting beam, but also simplify the assembly process of the mounting beam, improve the assembly efficiency of the mounting beam, and also improve the overall rigid mode of the battery.

[0048] The vehicle according to the third aspect embodiment of the present application includes: the battery according to the second aspect embodiment of the present application above.

[0049] The vehicle according to the embodiment of the present application, by setting the above battery, can also improve the safety strength performance of the vehicle.

[0050] In some embodiments, the vehicle includes an external device, which is a seat mounting cross member having a first groove recessed in a direction away from the battery, and the second beam body is located in the first groove.

[0051] In this embodiment, by providing the seat mounting cross member with the first groove recessed in the direction away from the battery and the second beam body located in the first groove, the connection strength between the seat and the second beam body can be increased.

[0052] In some embodiments, the battery box further includes a first mounting longitudinal beam, a second mounting longitudinal beam, a first cross beam, and a second cross beam that are arranged in parallel at intervals. The first mounting longitudinal beam, the second mounting longitudinal beam, the first cross beam, and the second cross beam define a receiving space. Among them, the first mounting longitudinal beam is the right sill beam of the vehicle, and the second mounting longitudinal beam is the left sill beam of the vehicle.

[0053] In this embodiment, by configuring the left sill beam and the right sill beam as the mounting body of the battery assembly and integrating the battery cell assembly with the vehicle, the number of battery components can be reduced, and the internal space of the vehicle occupied by the battery can also be reduced.

[0054] Some additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0055] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0056] Figure 1 is a schematic diagram of a vehicle according to an embodiment of the present application;

[0057] Figure 2 is a mating diagram of the battery box and the seat mounting cross member according to an embodiment of the present application;

[0058] Figure 3 is Figure 1 a cross-sectional view taken along line A-A in;

[0059] Figure 4 is Figure 3 an enlarged view of B in;

[0060] Figure 5 is Figure 2 an exploded view of the battery box and the seat mounting cross member in;

[0061] Figure 6 is Figure 2 a schematic diagram of the battery box in;

[0062] Figure 7 is Figure 6 a schematic diagram of a battery guard plate in

[0063] Figure 8 a schematic diagram of a battery box according to some embodiments of the present application;

[0064] Figure 9 a schematic diagram of a battery box according to other embodiments of the present application;

[0065] Figure 10 a schematic diagram of a battery box according to still other embodiments of the present application;

[0066] Figure 11 a schematic diagram of a battery box according to yet other embodiments of the present application;

[0067] Figure 12 a schematic diagram of a mounting beam according to some embodiments of the present application;

[0068] Figure 13 a schematic diagram of a mounting beam according to other embodiments of the present application.

[0069] Reference numerals:

[0070] 100, vehicle; 101, controller; 102, motor; 103, battery;

[0071] 10, battery box;

[0072] 1, mounting beam; 11, first beam body; 111, overlapping portion; 112, third cavity; 12, second beam body; 121, first notch; 122, first cavity; 123, second cavity; 124, strengthening bracket; 1241, second notch; 13, first spaced-apart space; 14, fixing bracket; 15, second spaced-apart space;

[0073] 2, battery guard plate; 21, first battery guard plate; 22, second battery guard plate; 23, avoidance space; 24, first connecting pipe;

[0074] 3, bottom liquid cooling plate; 31, first liquid cooling plate; 32, second liquid cooling plate; 33, second connecting pipe;

[0075] 41, first mounting longitudinal beam; 42, second mounting longitudinal beam; 43, first cross beam; 44, second cross beam; 45, accommodating space; 46, battery cell assembly;

[0076] 5, seat mounting cross beam; 51, first groove; 52, second groove; 53, fixing member. Detailed implementation manners

[0077] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0078] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0079] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mount", "connect" and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication 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 present application may be understood according to specific circumstances.

[0080] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only applied to energy storage power systems such as hydraulic, thermal, wind and solar power stations, but also widely used in electric transportation such as electric bicycles, electric motorcycles, electric vehicles, and many other fields such as aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also constantly increasing.

[0081] The power battery pack is a main component of an electric vehicle. Generally, a cross beam is arranged in the power battery pack to separate or fix the battery cells, and a seat beam is arranged above the battery pack. Currently, the cross beam and the seat beam are independently arranged, the structure is not simplified enough, and the cross beam and the seat beam are independently arranged, the installation process is cumbersome, and it is not convenient for the installation of the cross beam and the seat beam; the power battery pack is connected to the vehicle body through several mounting sleeves, the connection strength between the power battery pack and the vehicle is insufficient, and a separate installation structure for the battery pack needs to be provided on the vehicle body, making the structure of the vehicle body complex.

[0082] Based on the above considerations, in order to improve the assembly efficiency of the beam in the battery box, a battery box is designed. The battery box has an accommodation space for accommodating the battery cell assembly. The battery box includes a mounting beam, and the mounting beam is an integrally formed part. The mounting beam includes a first beam body and a second beam body. Both the first beam body and the second beam body extend along a first direction and are arranged side by side in a second direction. In the second direction, at least a part of the second beam body extends out of the accommodation space, and the second beam body is used to connect with external devices, where the first direction is perpendicular to the second direction. The integrally formed mounting beam can not only increase the structural strength of the mounting beam, but also simplify the assembly process of the mounting beam and improve the assembly efficiency of the mounting beam.

[0083] The box body disclosed in this application can be used for electrical devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. The electrical devices can be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, power tools, battery cars, electric vehicles, ships, spacecraft, etc. Among them, the electric toys can include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric aircraft toys, etc. The spacecraft can include airplanes, rockets, space shuttles, and spaceships, etc.

[0084] For the convenience of description in the following embodiments, the vehicle 100 of an embodiment of this application is taken as an example for description.

[0085] Refer to Figure 1 , Figure 1 which is a schematic diagram of the vehicle 100 provided in some embodiments of this application. The vehicle 100 can be a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery 103 is disposed inside the vehicle 100, and the battery 103 can be disposed at the bottom or the head or the tail of the vehicle 100. The battery 103 can be used for power supply of the vehicle 100. For example, the battery 103 can be used as the operating power source of the vehicle 100. The vehicle 100 can also include a controller 101 and a motor 102. The controller 101 is used to control the battery 103 to supply power to the motor 102. For example, it is used for the working power requirements during the start, navigation, and driving of the vehicle 100.

[0086] Figure 2 is a mating diagram of the battery box 10 and the seat mounting cross beam 5 according to an embodiment of this application, Figure 3 is Figure 1 a cross-sectional view taken along line A-A in Figure 4 is Figure 3 an enlarged view at B in Figure 5 is Figure 2 a disassembled view of the battery box 10 and the seat mounting cross beam 5 in Figure 6 is Figure 2 a schematic diagram of the battery box 10 inFigure 7 is Figure 6 a schematic diagram of the battery guard plate 2 in Figure 8 a schematic diagram of the battery box 10 according to some embodiments of the present application, Figure 9 a schematic diagram of the battery box 10 according to some other embodiments of the present application, Figure 10 a schematic diagram of the battery box 10 according to still some other embodiments of the present application, Figure 11 a schematic diagram of the battery box 10 according to yet some other embodiments of the present application, Figure 12 a schematic diagram of the mounting beam 1 according to some embodiments of the present application, Figure 13 a schematic diagram of the mounting beam 1 according to some other embodiments of the present application.

[0087] The battery box 10 according to the embodiments of the first aspect of the present application, the battery box 10 has a receiving space 45 for receiving the battery cell assembly 46, and the battery box 10 includes: a mounting beam 1, the mounting beam 1 is an integrally formed part, the mounting beam 1 includes a first beam body 11 and a second beam body 12, both the first beam body 11 and the second beam body 12 extend along a first direction (for example, referring to the Y direction in the attached Figure 5 drawing), and are arranged side by side in a second direction, in the second direction (for example, referring to the Z direction in the attached Figure 5 drawing), at least a part of the second beam body 12 extends out of the receiving space 45, and the second beam body 12 is used for connecting with external devices, wherein, the first direction is perpendicular to the second direction.

[0088] Exemplarily, the battery box 10 may be a battery housing, and the receiving space 45 is defined by the battery housing; the battery box 10 may further include a first mounting longitudinal beam 41, a second mounting longitudinal beam 42, a first cross beam 43 and a second cross beam 44, and the receiving space 45 is enclosed by the first mounting longitudinal beam 41, the second mounting longitudinal beam 42, the first cross beam 43 and the second cross beam 44.

[0089] The battery box 10 includes a mounting beam 1, the mounting beam 1 may be an intermediate beam body in the battery box 10 for separating the battery cell assembly 46 in the receiving space 45; or may be a side beam of the battery box 10 for constructing the receiving space 45.

[0090] The mounting beam 1 is an integrally formed part, and the mounting beam 1 is formed by a single manufacturing process (such as casting or stamping in metal processing, etc.), which helps to improve the integrity and structural strength of the mounting beam 1, and at the same time can also simplify the manufacturing process of the mounting beam 1 and reduce costs.

[0091] The mounting beam 1 includes a first beam body 11 and a second beam body 12. Both the first beam body 11 and the second beam body 12 extend along a first direction and are arranged side by side in a second direction. In the second direction, at least part of the second beam body 12 extends out of the accommodation space 45. It can be that a part of the second beam body 12 extends out of the accommodation space 45, or the entire second beam body 12 extends out of the accommodation space 45.

[0092] When the battery 103 is mounted on the vehicle 100, the first direction is the left - right direction of the vehicle 100, and the second direction is the up - down direction of the vehicle 100. The mounting beam 1 extends along the left - right direction, and at least part of the second beam body 12 extends out of the accommodation space 45 in the up - down direction. It can be that at least part of the second beam body 12 extends out from above the accommodation space 45, or at least part of the second beam body 12 extends out from below the accommodation space 45.

[0093] When the second beam body 12 extends out, it can facilitate the connection between the second beam body 12 and external devices. When the second beam body 12 extends out from above the accommodation space 45, the second beam body 12 can be used to mount the seat in the cockpit of the vehicle 100; when the second beam body 12 extends out from below the accommodation space 45, the second beam body 12 can be used to mount some devices at the bottom of the vehicle 100.

[0094] In the related art, the first beam body 11 and the second beam body 12 are designed separately. It is necessary to mount the first beam body 11 on the battery box 10 respectively, and then mount the second beam body 12 on the outside of the accommodation space 45. The steps are cumbersome and the installation is complex. However, the mounting beam 1 of the present application is an integrally formed part, which can not only increase the structural strength of the mounting beam 1, but also simplify the assembly process of the mounting beam 1 and improve the assembly efficiency of the mounting beam 1.

[0095] According to the battery box 10 of the embodiment of the present application, the battery box 10 includes a mounting beam 1. The mounting beam 1 includes a first beam body 11 and a second beam body 12. The second beam body 12 extends out of the accommodation space 45 for connection with external devices. The mounting beam 1 is an integrally formed part, which can not only increase the structural strength of the mounting beam 1, but also simplify the assembly process of the mounting beam 1 and improve the assembly efficiency of the mounting beam 1.

[0096] In some embodiments, as Figures 2 - 10 shown, the battery box 10 further includes a battery guard plate 2. In the second direction, the battery guard plate 2 is located on the side of the battery cell assembly 46 facing the external device. The mounting beam 1 has a lapping portion 111 for carrying the battery guard plate 2.

[0097] Exemplarily, the battery guard plate 2 can be a wall plate of the accommodation space 45, and the battery guard plate 2 is used to protect the battery cell assembly 46 in the accommodation space 45. The overlapping portion 111 on the mounting beam 1 can be used to support the battery guard plate 2, and the overlapping portion 111 can also play a role in pre-positioning the battery guard plate 2. For example, the battery cell assembly 46 can be fixed to the battery guard plate 2 by adhesive.

[0098] For example, the fixed connection between the battery guard plate 2 and the mounting beam 1 can adopt other welding methods such as friction welding, arc welding or laser welding.

[0099] At least a part of the second beam body 12 extends out of the accommodation space 45. The battery guard plate 2 is located on the side of the battery cell assembly 46 facing the external device. The overlapping portion 111 can be arranged on the first beam body 11, and the overlapping portion 111 can be an overlapping plate arranged on one side in the width direction of the first beam body 11.

[0100] When the battery 103 is installed on the vehicle 100, the battery guard plate 2 can be located above the accommodation space 45, and the overlapping portion 111 can be located above the first beam body 11 for supporting the battery guard plate 2.

[0101] For example, the mounting beam 1 is a side beam of the battery box 10, and the overlapping portion 111 can be located on one side of the mounting beam 1.

[0102] For another example, the mounting beam 1 can be an intermediate beam body arranged in the accommodation space 45. The overlapping portion 111 can be arranged on both sides in the width direction of the mounting beam 1. Two battery guard plates 2 can also be provided, and the two battery guard plates 2 are respectively located on the corresponding overlapping portions 111.

[0103] Exemplarily, the battery guard plate 2 and the mounting beam 1 are made of the same material, which is convenient for welding and fixing the battery guard plate 2 and the mounting beam 1. For example, if the battery guard plate 2 is made of steel, then the mounting beam 1 is made of steel roll pressing or steel stamping; for another example, if the battery guard plate 2 is made of aluminum, then the mounting beam 1 is made of aluminum extrusion or aluminum casting.

[0104] In this embodiment, by providing that the battery box 10 includes the battery guard plate 2, the mounting beam 1 has the overlapping portion 111 for bearing the battery guard plate 2, the overlapping portion 111 can be used to support the battery guard plate 2, and the overlapping portion 111 can also play a role in pre-positioning the battery guard plate 2.

[0105] In some embodiments, as Figures 2 - 5 、 Figures 12 - 13 shown, the overlapping portion 111 is located on one side of the first beam body 11 in the third direction. In the second direction, the distance between the surface of the overlapping portion 111 facing the second beam body 12 and the surface of the first beam body 11 facing the second beam body 12 is greater than or equal to the thickness of the battery guard plate 2, where the first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0106] Exemplarily, the overlapping portion 111 is located on one side of the first beam body 11 in the third direction (for example, referring to the X direction in the attached Figure 5 drawing). A positioning groove is formed between the overlapping portion 111 and the first beam body 11. The battery guard plate 2 is located in the positioning groove, and the outer surface of the battery guard plate 2 is lower than the surface of the first beam body 11, or the outer surface of the battery guard plate 2 is flush with the surface of the first beam body 11, so as to prevent the battery guard plate 2 from protruding and scratching other devices.

[0107] In this embodiment, by setting the outer surface of the battery guard plate 2 to be lower than the surface of the first beam body 11, or the outer surface of the battery guard plate 2 to be flush with the surface of the first beam body 11, it is possible to prevent the battery guard plate 2 from protruding and scratching other devices.

[0108] In some embodiments, as Figures 2 - 13 shown, in the third direction, the width of the first beam body 11 is greater than the width of the second beam body 12.

[0109] Exemplarily, the width of the first beam body 11 is greater than the width of the second beam body 12. When the second beam body 12 extends out of the accommodation space 45, the space outside the battery box 10 occupied by the second beam body 12 can be reduced. When there are two battery guard plates 2, when the second beam body 12 extends out of the accommodation space 45, the avoidance space 23 between the two battery guard plates 2 can be reduced, and the structural strength of the battery guard plate 2 can be improved.

[0110] Exemplarily, it can be that one side of the first beam body 11 facing the external device is configured as the overlapping portion 111, and the battery guard plate 2 is located on the first beam body 11.

[0111] In this embodiment, by setting the width of the first beam body 11 to be greater than the width of the second beam body 12, it can be that one side of the first beam body 11 facing the external device is configured as the overlapping portion 111, and the space outside the battery box 10 occupied by the second beam body 12 can also be reduced.

[0112] In some embodiments, as Figures 2 - 13 shown, in the width direction of the first beam body 11, the second beam body 12 is located in the middle of the first beam body 11.

[0113] Exemplarily, the second beam body 12 being located in the middle of the first beam body 11 can improve the structural strength of the entire mounting beam 1 and avoid the risk of the second beam body 12 breaking from the first beam body 11.

[0114] Exemplarily, when the mounting beam 1 is an intermediate beam body provided in the battery box 10, it can be that both sides of the first beam body 11 along the third direction are configured as overlapping portions 111. The overlapping portions 111 can be located on both sides of the first beam body 11 in the third direction, and there can also be two battery guard plates 2, and the two battery guard plates 2 are respectively located on the corresponding overlapping portions 111.

[0115] In this embodiment, by arranging the second beam body 12 in the middle of the first beam body 11 in the width direction of the first beam body 11, the structural strength of the entire mounting beam 1 can be improved, and the risk of the second beam body 12 breaking from the first beam body 11 can be avoided.

[0116] In some embodiments, as Figures 2 - 13 shown, the battery guard plate 2 has an avoidance space 23, and at least part of the second beam body 12 extends out of the avoidance space 23.

[0117] Exemplarily, the mounting beam 1 is an intermediate beam body in the battery box 10. An avoidance space 23 is provided on the battery guard plate 2, and at least part of the second beam body 12 extends out of the avoidance space 23 so that the second beam body 12 can be connected to an external device. The battery guard plate 2 can be a whole, and the avoidance space 23 is provided at the middle position of the battery guard plate 2; alternatively, there are two battery guard plates 2, and the avoidance space 23 is constructed between the two battery guard plates 2.

[0118] In this embodiment, by providing the avoidance space 23 on the battery guard plate 2, at least part of the second beam body 12 extends out of the avoidance space 23, so that the second beam body 12 can be connected to an external device.

[0119] In some embodiments, as Figures 2 - 13 shown, the length of the first beam body 11 is greater than the length of the second beam body 12, and the battery guard plate 2 surrounds the outer periphery of the second beam body 12.

[0120] Exemplarily, the mounting beam 1 is an intermediate beam body in the battery box 10. The battery guard plate 2 surrounds the outer periphery of the second beam body 12. The battery guard plate 2 is a whole, which can avoid damaging the overall structure of the battery guard plate 2, improve the structural strength of the battery guard plate 2, and also facilitate the installation of the battery guard plate 2.

[0121] In this embodiment, by setting the length of the first beam body 11 to be greater than the length of the second beam body 12, and the battery guard plate 2 surrounds the outer periphery of the second beam body 12, and the battery guard plate 2 is a whole, it is convenient for the installation of the battery guard plate 2.

[0122] In some embodiments, as Figures 2 - 10 shown, the battery guard plate 2 includes a first battery guard plate 21 and a second battery guard plate 22, and the first battery guard plate 21 and the second battery guard plate 22 are respectively located on both sides of the mounting beam 1 in the third direction.

[0123] For example, after the battery 103 is installed on the vehicle 100, the first battery shield 21 and the second battery shield 22 are located on either side of the mounting beam 1 in the front-to-rear direction. The first battery shield 21 and the second battery shield 22 can be installed separately. When the first battery shield 21 and the second battery shield 22 need to be replaced, the corresponding first battery shield 21 or second battery shield 22 can be replaced, saving the cost of replacing the battery shield 2. The first battery shield 21 and the second battery shield 22 have the same structure, saving the cost of molds for processing the first battery shield 21 and the second battery shield 22.

[0124] An escape space 23 is defined between the first battery guard plate 21 and the second battery guard plate 22. At least part of the second beam body 12 extends from the accommodating space 45 through the escape space 23. It is not necessary to set the escape space 23 on the battery guard plate 2. The first battery guard plate 21 and the second battery guard plate 22 only need to be installed on both sides of the mounting beam 1 in the third direction.

[0125] Exemplarily, the first battery guard plate 21 and the second battery guard plate 22 are respectively located on the overlapping portion 111 of the mounting beam 1 .

[0126] In this embodiment, the battery guard plate 2 includes a first battery guard plate 21 and a second battery guard plate 22, and an avoidance space 23 is defined between the first battery guard plate 21 and the second battery guard plate 22; when the first battery guard plate 21 and the second battery guard plate 22 need to be replaced, the corresponding first battery guard plate 21 or the second battery guard plate 22 can be replaced, which can save the cost of replacing the battery guard plate 2.

[0127] In some embodiments, as Figures 2 - 8 As shown, there is a liquid cooling channel in the battery guard plate 2.

[0128] Illustratively, the battery guard plate 2 has a liquid cooling channel in which a heat exchange fluid flows for heating or cooling the battery cell assembly 46 .

[0129] The battery guard plate 2 surrounds the outer periphery of the second beam body 12. The battery guard plate 2 is a whole. There is a liquid cooling flow channel in the battery guard plate 2 surrounding the outer periphery of the second beam body 12. The liquid cooling flow channel is used to connect the battery guard plates 2 located on both sides of the third direction of the mounting beam 1, which can facilitate the flow of heat exchange fluid in the liquid cooling flow channel of the entire battery guard plate 2.

[0130] The battery shield 2 includes a first battery shield 21 and a second battery shield 22 . Both the first battery shield 21 and the second battery shield 22 have liquid cooling channels. The first battery shield 21 and the second battery shield 22 may have relatively independent liquid cooling channels.

[0131] In this embodiment, a liquid cooling channel is provided inside the battery guard plate 2 for heating or cooling the battery cell assembly 46.

[0132] In some embodiments, as Figure 8 shown, at least one first notch 121 is provided on the second beam body 12, and a first connecting pipe 24 communicating with the liquid cooling channel is arranged in the first notch 121.

[0133] Exemplarily, the battery guard plate 2 includes a first battery guard plate 21 and a second battery guard plate 22. The first connecting pipe 24 is used to connect the liquid cooling channels of the first battery guard plate 21 and the second battery guard plate 22, so that the liquid cooling channels of the first battery guard plate 21 and the second battery guard plate 22 can be configured as a loop, and the battery guard plate 2 can have a liquid inlet and a liquid outlet.

[0134] At least one first notch 121 is provided on the second beam body 12. It can be that there is one first notch 121 on the second beam body 12, or there are multiple first notches 121 on the second beam body 12. A first connecting pipe 24 communicating with the liquid cooling channel is arranged in each first notch 121. Preferably, there are two first notches 121 on the second beam body 12. The two first notches 121 can be located at the middle position of the second beam body 12, or can be located at both ends of the second beam body 12 respectively. The position of the first notch 121 can be set according to actual needs. There are two first connecting pipes 24. One first connecting pipe 24 is used to connect the liquid inlet end of the liquid cooling channel, and the other first connecting pipe 24 is used to connect the liquid outlet end of the liquid cooling channel.

[0135] In this embodiment, by providing at least one first notch 121 on the second beam body 12, a first connecting pipe 24 communicating with the liquid cooling channel is arranged in the first notch 121, and the first connecting pipe 24 is used to connect the liquid cooling channels of the first battery guard plate 21 and the second battery guard plate 22, so that the liquid cooling channels of the first battery guard plate 21 and the second battery guard plate 22 can be configured as a loop.

[0136] In some embodiments, as Figure 8 shown, the first notch 121 has an opening facing one side in the second direction, and the battery box 10 further includes a reinforcing bracket 124 which is fixedly connected at the opening.

[0137] Exemplarily, the reinforcing bracket 124 is used to supplement the first notch 121 of the second beam body 12 for increasing the structural strength of the second beam body 12. The reinforcing bracket 124 can also fix the first connecting pipe 24 in the first notch 121. For example, the reinforcing bracket 124 can be fixed on the second beam body 12 through fasteners.

[0138] When the battery 103 is installed on the vehicle 100, the first notch 121 is located outside the accommodation space 45 and above the battery guard plate 2, that is, the first connection pipe 24 is located above the battery guard plate 2.

[0139] In this embodiment, by providing the reinforcing bracket 124, the reinforcing bracket 124 is fixedly connected at the opening, and the reinforcing bracket 124 is used to increase the structural strength of the second beam body 12.

[0140] In some embodiments, as Figure 8 shown, the reinforcing bracket 124 has a second notch 1241 opposite to the first notch 121.

[0141] Exemplarily, the second notch 1241 on the reinforcing bracket 124 avoids the first notch 121 of the second beam body 12, and the reinforcing bracket 124 can be connected to the outer peripheral side of the second beam body 12 for further increasing the structural strength of the second beam body 12. For example, the reinforcing bracket 124 can be a reinforcing frame, and the reinforcing frame covers the outer peripheral side of the second beam body 12 at the first notch 121. Correspondingly, the second notch 1241 is provided on the reinforcing frame for avoiding the first connection pipe 24 in the first notch 121.

[0142] In this embodiment, by providing the second notch 1241 in the reinforcing bracket 124, and the second notch 1241 avoids the first notch 121 of the second beam body 12, the reinforcing bracket 124 can be connected to the outer peripheral side of the second beam body 12 for further increasing the structural strength of the second beam body 12.

[0143] In some embodiments, there are two first notches 121, and the two first notches 121 are respectively located at both ends of the second beam body 12.

[0144] Exemplarily, there are also two first connection pipes 24, and the two first connection pipes 24 are respectively located at both ends of the second beam body 12. The two first connection pipes 24 are arranged close to the edge of the battery box 10, which can facilitate the assembly of the first connection pipe 24.

[0145] In this embodiment, by providing two first notches 121 respectively located at both ends of the second beam body 12, and two first connection pipes 24 are also respectively located at both ends of the second beam body 12, and the two first connection pipes 24 are arranged close to the edge of the battery box 10, it can facilitate the assembly of the first connection pipe 24.

[0146] In some embodiments, as Figures 2 - 7As shown, the battery guard plate 2 includes a first battery guard plate 21 and a second battery guard plate 22. The first battery guard plate 21 and the second battery guard plate 22 are respectively located on both sides of the mounting beam 1 in the third direction. The battery box 10 further includes a first mounting longitudinal beam 41 and a second mounting longitudinal beam 42 that are arranged in parallel at intervals. The two ends of the first beam body 11 are respectively fixedly connected to the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42. There is a first spaced space 13 between at least one end of the second beam body 12 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42. A liquid cooling pipeline for connecting the liquid cooling channels of the first battery guard plate 21 and the liquid cooling channels of the second battery guard plate 22 is arranged in the first spaced space 13.

[0147] Exemplarily, the battery box 10 further includes a first mounting longitudinal beam 41 and a second mounting longitudinal beam 42 that are arranged in parallel at intervals. The first mounting longitudinal beam 41 and the second mounting longitudinal beam 42 extend in the third direction. The first mounting longitudinal beam 41 and the second mounting longitudinal beam 42 are respectively connected to the two ends of the first beam body 11 along the first direction. The first mounting longitudinal beam 41 and the second mounting longitudinal beam 42 function to mount the first beam body 11.

[0148] There is a first spaced space 13 between one end of the second beam body 12 and the first mounting longitudinal beam 41, and a liquid cooling pipeline for connecting the first battery guard plate 21 and the second battery guard plate 22 is arranged in the first spaced space 13; or, there is a first spaced space 13 between one end of the second beam body 12 and the second mounting longitudinal beam 42, and a liquid cooling pipeline for connecting the first battery guard plate 21 and the second battery guard plate 22 is arranged in the first spaced space 13; or, there are first spaced spaces 13 between both ends of the second beam body 12 and the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42. There are two liquid cooling pipelines. One liquid cooling pipeline is arranged in the first spaced space 13 between one end of the second beam body 12 and the first mounting longitudinal beam 41, and the other liquid cooling pipeline is arranged in the first spaced space 13 between the other end of the second beam body 12 and the second mounting longitudinal beam 42. The number of the first spaced spaces 13 can be set according to actual requirements.

[0149] The liquid cooling pipeline is used to connect the liquid cooling channels of the first battery guard plate 21 and the liquid cooling channels of the second battery guard plate 22, which can make the liquid cooling channels of the first battery guard plate 21 and the liquid cooling channels of the second battery guard plate 22 be constructed as a loop, so that the battery guard plate 2 has a liquid inlet and a liquid outlet. There are two liquid cooling pipelines. One liquid cooling pipeline is used to connect the liquid inlet end of the liquid cooling channel, and the other liquid cooling pipeline is used to connect the liquid outlet end of the liquid cooling channel.

[0150] For example, the battery guard plate 2 can be fixed between the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42 by friction stir welding or other welding methods.

[0151] In this embodiment, a first spacing space 13 is provided between at least one end of the second beam body 12 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42. A liquid cooling pipeline for connecting the liquid cooling channel of the first battery guard plate 21 and the liquid cooling channel of the second battery guard plate 22 is provided in the first spacing space 13, so that the liquid cooling channel of the first battery guard plate 21 and the liquid cooling channel of the second battery guard plate 22 can be constructed into a loop.

[0152] In some embodiments, as Figure 5 As shown, the battery box 10 further includes: a fixing bracket 14 , which is connected between at least one end of the second beam body 12 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42 .

[0153] Exemplarily, the fixing bracket 14 is connected between one end of the second beam body 12 and the first mounting longitudinal beam 41; or, the fixing bracket 14 is connected between the other end of the second beam body 12 and the second mounting longitudinal beam 42; or, two fixing brackets 14 are provided, one fixing bracket 14 is connected between one end of the second beam body 12 and the first mounting longitudinal beam 41, and the other fixing bracket 14 is connected between the other end of the second beam body 12 and the second mounting longitudinal beam 42.

[0154] The fixing bracket 14 increases the connection strength between the second beam body 12 and the first mounting longitudinal beam 41 or the second mounting longitudinal beam 42 , thereby increasing the structural strength of the second beam body 12 .

[0155] For example, a third gap for avoiding the liquid cooling pipeline may be provided in the fixing bracket 14, and the liquid cooling pipeline may be located in the third gap.

[0156] In this embodiment, a fixing bracket 14 is provided, which is connected between at least one end of the second beam body 12 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42 to increase the connection strength between the second beam body 12 and the first mounting longitudinal beam 41 or the second mounting longitudinal beam 42.

[0157] In some embodiments, as Figure 11 As shown, the battery box 10 further includes: a bottom liquid cooling plate 3. In the second direction, the bottom liquid cooling plate 3 is located on the side of the battery 103 core assembly facing away from the external device.

[0158] Illustratively, a heat exchange fluid is contained within the bottom liquid cooling plate 3, which can be used to heat or cool the battery cell assembly 46. The mounting beam 1 can be located on one side of the bottom liquid cooling plate 3 along the second direction. When the battery 103 is installed on the vehicle 100, the bottom liquid cooling plate 3 is located below the battery cell assembly 46, and the mounting beam 1 is located above the bottom liquid cooling plate 3. For example, the battery cell assembly 46 can be secured to the bottom liquid cooling plate 3 using adhesive.

[0159] For example, the bottom liquid cooling plate 3 and the battery guard plate 2 are respectively located on both sides of the battery cell assembly 46 in the second direction. Under the combined action of the bottom liquid cooling plate 3 and the battery guard plate 2, the heat exchange efficiency of the battery cell assembly 46 can be improved.

[0160] In this embodiment, by providing the bottom liquid cooling plate 3, the bottom liquid cooling plate 3 can be used to heat or cool the battery cell assembly 46.

[0161] In some embodiments, as Figure 11 shown, the bottom liquid cooling plate 3 includes a first liquid cooling plate 31 and a second liquid cooling plate 32. The first liquid cooling plate 31 and the second liquid cooling plate 32 are respectively located on both sides of the mounting beam 1 in the third direction.

[0162] Exemplarily, when the first liquid cooling plate 31 and the second liquid cooling plate 32 need to be replaced, the corresponding first liquid cooling plate 31 or the second liquid cooling plate 32 can be replaced, which can save the cost of replacing the bottom liquid cooling plate 3. The structures of the first liquid cooling plate 31 and the second liquid cooling plate 32 are the same, which can save the mold cost of processing the first liquid cooling plate 31 and the second liquid cooling plate 32.

[0163] The mounting beam 1 is located between the first liquid cooling plate 31 and the second liquid cooling plate 32 and can be fixedly connected to the first liquid cooling plate 31 and the second liquid cooling plate 32.

[0164] In this embodiment, by providing that the bottom liquid cooling plate 3 includes the first liquid cooling plate 31 and the second liquid cooling plate 32, when the first liquid cooling plate 31 and the second liquid cooling plate 32 need to be replaced, the corresponding first liquid cooling plate 31 or the second liquid cooling plate 32 can be replaced, which can save the cost of replacing the liquid cooling plate.

[0165] In some embodiments, as Figure 11 shown, the battery box 10 further includes a first mounting longitudinal beam 41 and a second mounting longitudinal beam 42 that are arranged in parallel at intervals. There is a second interval space 15 between at least one end of the mounting beam 1 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42. A second connecting pipe 33 for communicating the first liquid cooling plate 31 and the second liquid cooling plate 32 is provided in the second interval space 15.

[0166] Exemplarily, there is a second interval space 15 between one end of the mounting beam 1 and the first mounting longitudinal beam 41, and a second connecting pipe 33 for connecting the first liquid cooling plate 31 and the second liquid cooling plate 32 is arranged in the second interval space 15; or, there is a second interval space 15 between one end of the mounting beam 1 and the second mounting longitudinal beam 42, and a second connecting pipe 33 for connecting the first liquid cooling plate 31 and the second liquid cooling plate 32 is arranged in the second interval space 15; or, there are second interval spaces 15 between both ends of the mounting beam 1 and the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42, and there are two second connecting pipes 33. One second connecting pipe 33 is arranged in the second interval space 15 between one end of the second beam body 12 and the first mounting longitudinal beam 41, and the other second connecting pipe 33 is arranged in the second interval space 15 between the other end of the mounting beam 1 and the second mounting longitudinal beam 42. The number of the second interval spaces 15 can be set according to actual requirements.

[0167] The second connecting pipe 33 is used to connect the first liquid cooling plate 31 and the second liquid cooling plate 32, which can make the first liquid cooling plate 31 and the second liquid cooling plate 32 form a loop, so that the liquid cooling plate has an inlet and an outlet. There are two second connecting pipes 33. One second connecting pipe 33 is used to connect the inlet end of the liquid cooling plate, and the other second connecting pipe 33 is used to connect the outlet end of the liquid cooling plate.

[0168] For example, the liquid cooling plate can be fixed between the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42 by friction stir welding or other welding methods.

[0169] In this embodiment, by setting that there is a second interval space 15 between at least one end of the mounting beam 1 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42, and a second connecting pipe 33 for connecting the first liquid cooling plate 31 and the second liquid cooling plate 32 is arranged in the second interval space 15, and the second connecting pipe 33 is used to connect the first liquid cooling plate 31 and the second liquid cooling plate 32, the first liquid cooling plate 31 and the second liquid cooling plate 32 can be formed into a loop.

[0170] In some embodiments, the battery box 10 further includes: a connecting bracket, and the connecting bracket is connected between at least one end of the mounting beam 1 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42.

[0171] Exemplarily, the connecting bracket is connected between one end of the mounting beam 1 and the first mounting longitudinal beam 41; or, the connecting bracket is connected between the other end of the mounting beam 1 and the second mounting longitudinal beam 42; or, there are two connecting brackets. One connecting bracket is connected between one end of the mounting beam 1 and the first mounting longitudinal beam 41, and the other connecting bracket is connected between one end of the mounting beam 1 and the second mounting longitudinal beam 42.

[0172] The fixing bracket 14 increases the connection strength between the mounting beam 1 and the first mounting longitudinal beam 41 or the second mounting longitudinal beam 42 , thereby increasing the structural strength of the mounting beam 1 .

[0173] For example, a fourth notch for avoiding the second connecting pipe 33 may be provided in the fixing bracket 14 , and the fourth connecting pipe may be located in the third notch.

[0174] In this embodiment, a connecting bracket is provided, which is connected between at least one end of the mounting beam 1 and the first mounting longitudinal beam 41 and / or the second mounting longitudinal beam 42 to increase the connection strength between the mounting beam 1 and the first mounting longitudinal beam 41 or the second mounting longitudinal beam 42.

[0175] In some embodiments, as Figures 3 - 4 、 Figures 12 - 13 As shown, the second beam body 12 has a first cavity 122 and a second cavity 123. The second cavity 123 is located on the side of the first cavity 122 away from the first beam body 11. In the second direction, the height of the second cavity 123 is greater than the height of the first cavity 122. The fixing part 53 connected to the external equipment is located in the second cavity 123.

[0176] For example, by providing the first cavity 122 and the second cavity 123 within the second beam body 12, the structural strength of the second beam body 12 can be improved while also reducing the weight and cost of the second beam body 12. The external device is secured to the second beam using a fixing member 53. The height of the second cavity 123 is greater than that of the first cavity 122, facilitating the placement of the fixing member 53 within the second cavity 123. For example, the fixing member 53 is a bolt.

[0177] When the battery 103 is mounted on the vehicle 100 , the second cavity 123 is located above the first cavity 122 .

[0178] Exemplarily, the first beam body 11 has a plurality of third cavities 112 , and at least two third cavities 112 have different heights. This improves the structural strength of the first beam body 11 while reducing the weight and cost of the second beam body 12 .

[0179] In this embodiment, the weight and cost of the second beam body 12 can be reduced by setting the second beam body 12 to have a first cavity 122 and a second cavity 123; and the external equipment is fixed to the second beam using a fixing member 53, and the height of the second cavity 123 is greater than the height of the first cavity 122, which can facilitate the placement of the fixing member 53 in the second cavity 123.

[0180] The battery 103 according to the second embodiment of the present application includes: the battery box 10 according to the first embodiment of the present application.

[0181] According to the battery 103 of the embodiment of the present application, by providing the above-mentioned battery box 10 and making the mounting beam 1 an integrally formed part, not only can the structural strength of the mounting beam 1 be increased, but also the assembly process of the mounting beam 1 can be simplified, the assembly efficiency of the mounting beam 1 can be improved, and the overall rigid mode of the battery 103 can be enhanced.

[0182] The vehicle 100 according to the third aspect embodiment of the present application includes: the battery 103 according to the second aspect embodiment of the present application above.

[0183] According to the vehicle 100 of the embodiment of the present application, by providing the above-mentioned battery 103, the safety strength performance of the vehicle 100 can also be enhanced.

[0184] In some embodiments, as Figures 1 - 4 shown, the vehicle 100 includes: an external device, the external device is a seat mounting cross beam 5, the seat mounting cross beam 5 has a first groove 51 recessed in a direction away from the battery 103, and the second beam body 12 is located in the first groove 51.

[0185] Exemplarily, the second beam body 12 is located in the first groove 51, the seat mounting cross beam 5 can cover the outer side surface of the second beam body 12, and a seat is mounted above the seat mounting cross beam 5. By providing the seat mounting cross beam 5, the connection strength between the seat and the second beam body 12 can be increased. The seat mounting cross beam 5 is connected between the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42.

[0186] The first beam body 11 is located in the accommodation space 45, and the second beam body 12 is used for mounting the seat. Integrating the first beam body 11 and the second beam body 12 into one body can significantly enhance the overall mode of the battery 103 and the side collision safety strength of the whole vehicle.

[0187] For example, a second groove 52 spaced apart from the first groove 51 is further provided in the seat mounting cross beam 5, and the seat is mounted on the bottom walls of the first groove 51 and the second groove 52, which can increase the connection area between the seat and the seat mounting cross beam 5 to increase the stability of the seat mounted on the mounting cross beam.

[0188] In this embodiment, by providing the seat mounting cross beam 5 with the first groove 51 recessed in a direction away from the battery 103 and the second beam body 12 located in the first groove 51, the connection strength between the seat and the second beam body 12 can be increased.

[0189] In some embodiments, as Figures 1 - 4As shown, the battery box 10 further includes a first mounting longitudinal beam 41, a second mounting longitudinal beam 42, a first cross beam 43, and a second cross beam 44 that are arranged in parallel at intervals. The first mounting longitudinal beam 41, the second mounting longitudinal beam 42, the first cross beam 43, and the second cross beam 44 define an accommodation space 45. Among them, the first mounting longitudinal beam 41 is the right sill beam of the vehicle 100, and the second mounting longitudinal beam 42 is the left sill beam.

[0190] Exemplarily, the installation of the battery cell assembly 46 makes use of the left and right sill beams of the vehicle 100. The left and right sill beams are configured as the beam bodies of the battery 103 assembly, integrating the battery cell assembly 46 with the vehicle 100, which can reduce the components of the battery 103 and also reduce the internal space of the vehicle 100 occupied by the battery 103.

[0191] In this embodiment, by arranging the left and right sill beams to be the installation bodies of the battery 103 assembly and integrating the battery cell assembly 46 with the vehicle 100, the components of the battery 103 can be reduced, and the internal space of the vehicle 100 occupied by the battery 103 can also be reduced.

[0192] Next, reference will be made to Figures 1 - 13 Describe the battery box 10 according to a specific embodiment of the present application.

[0193] The battery box 10 includes a first mounting longitudinal beam 41, a second mounting longitudinal beam 42, a first cross beam 43, and a second cross beam 44. The first mounting longitudinal beam 41, the second mounting longitudinal beam 42, the first cross beam 43, and the second cross beam 44 define an accommodation space 45 for accommodating the battery cell assembly 46. Among them, the first mounting longitudinal beam 41 is the right sill beam of the vehicle 100, and the second mounting longitudinal beam 42 is the left sill beam of the vehicle 100.

[0194] The battery box 10 further includes a mounting beam 1. The mounting beam 1 includes a first beam body 11 and a second beam body 12. The first beam body 11 is located inside the accommodation space 45, and the second beam body 12 extends above the accommodation space 45 and is fixedly connected to the seat mounting cross beam 5. The second beam body 12 has a first cavity 122 and a second cavity 123. In the up and down direction, the height of the second cavity 123 is greater than the height of the first cavity 122, and the fixing member 53 connected to the external device is located inside the second cavity 123. The first beam body 11 has a plurality of third cavities 112, and at least two of the third cavities 112 have different heights.

[0195] The battery box 10 further includes a battery guard plate 2, which is located above the battery cell assembly 46 and fixedly connected to the battery cell assembly 46. The circumference of the battery guard plate 2 is fixedly connected to the first mounting longitudinal beam 41, the second mounting longitudinal beam 42, the first cross beam 43, and the second cross beam 44. The battery guard plate 2 has an avoidance space 23, and the second beam body 12 extends out of the accommodation space 45 through the avoidance space 23. There are overlapping portions 111 on both sides of the first beam body 11 in the width direction, and the battery guard plate 2 is located on the overlapping portions 111. The length of the first beam body 11 is greater than the length of the second beam body 12, and the battery guard plate 2 surrounds the outer periphery of the second beam body 12. The battery guard plate 2 has a liquid cooling channel, and the battery guard plate 2 surrounding the outer periphery of the second beam body 12 also has a liquid cooling channel. The liquid cooling channel is used to connect the battery guard plates 2 on both sides of the mounting beam 1 in the front-back direction. The battery guard plate 2 includes a first battery guard plate 21 and a second battery guard plate 22. Both the first battery guard plate 21 and the second battery guard plate 22 have liquid cooling channels, and the first battery guard plate 21 and the second battery guard plate 22 have relatively independent liquid cooling channels.

[0196] Two first notches 121 are provided on the second beam body 12, and a first connecting pipe 24 communicating with the liquid cooling channel is arranged in each first notch 121. The first connecting pipe 24 is used to connect the liquid cooling channels of the first battery guard plate 21 and the second battery guard plate 22. The two first notches 121 can be located in the middle of the second beam body 12 or at both ends of the second beam body 12 respectively. The battery box 10 further includes a strengthening bracket 124, which is fixedly connected to the opening of the first notch 121. The strengthening bracket 124 has a second notch 1241 opposite to the first notch 121, and the strengthening bracket 124 is used to increase the structural strength of the second beam body 12.

[0197] There is a first interval space 13 between the two ends of the second beam body 12 and the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42. A liquid cooling pipeline for connecting the first battery guard plate 21 and the second battery guard plate 22 is arranged in the first interval space 13, so that the liquid cooling channels of the first battery guard plate 21 and the second battery guard plate 22 can be configured as a loop. There are two liquid cooling pipelines. One liquid cooling pipeline is arranged in the first interval space 13 between one end of the second beam body 12 and the first mounting longitudinal beam 41, and the other liquid cooling pipeline is arranged in the first interval space 13 between the other end of the second beam body 12 and the second mounting longitudinal beam 42. The battery box 10 further includes fixing brackets 14. There are two fixing brackets 14. One fixing bracket 14 is connected between one end of the second beam body 12 and the first mounting longitudinal beam 41, and the other fixing bracket 14 is connected between the other end of the second beam body 12 and the second mounting longitudinal beam 42. The fixing brackets 14 increase the connection strength between the second beam body 12 and the first mounting longitudinal beam 41 and the second mounting longitudinal beam 42.

[0198] The battery box 10 further includes a bottom liquid cooling plate 3, which is located below the battery 103 core assembly and fixedly connected to the core assembly 46. The circumference of the bottom liquid cooling plate 3 is fixedly connected to the first installation longitudinal beam 41, the second installation longitudinal beam 42, the first cross beam 43, and the second cross beam 44. The bottom liquid cooling plate 3 includes a first liquid cooling plate 31 and a second liquid cooling plate 32. The first liquid cooling plate 31 and the second liquid cooling plate 32 are respectively located on both sides of the installation beam 1 in the front-rear direction, and the first liquid cooling plate 31 and the second liquid cooling plate 32 have relatively independent liquid cooling channels.

[0199] There are second spacing spaces 15 between the two ends of the installation beam 1 and the first installation longitudinal beam 41 and the second installation longitudinal beam 42. A second connecting pipe 33 for connecting the first liquid cooling plate 31 and the second liquid cooling plate 32 is arranged in the second spacing space 15. There are two second connecting pipes 33. One second connecting pipe 33 is located in the second spacing space 15 between one end of the second beam body 12 and the first installation longitudinal beam 41, and the other second connecting pipe 33 is located in the second spacing space 15 between the other end of the installation beam 1 and the second installation longitudinal beam 42. The battery box 10 further includes connecting brackets. There are two connecting brackets. One connecting bracket is connected between one end of the installation beam 1 and the first installation longitudinal beam 41, and the other connecting bracket is connected between one end of the installation beam 1 and the second installation longitudinal beam 42, for increasing the connection strength between the installation beam 1 and the first installation longitudinal beam 41 or the second installation longitudinal beam 42. A fourth notch for avoiding the second connecting pipe 33 may be provided in the fixing bracket 14, and the second connecting pipe 33 may be located in the third notch.

[0200] In the description of this specification, the description with reference to terms such as "some embodiments", "optionally", "further", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0201] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery box (10), characterized in that, The battery box (10) has a receiving space (45) for receiving a battery cell assembly (46), and the battery box (10) comprises: A mounting beam (1), wherein the mounting beam (1) is an integrally formed part, and comprises a first beam body (11) and a second beam body (12), wherein the first beam body (11) and the second beam body (12) both extend along a first direction and are arranged side by side in a second direction, wherein in the second direction, at least a portion of the second beam body (12) extends out of the accommodating space (45), and the second beam body (12) is used for connecting to an external device, wherein the first direction is perpendicular to the second direction.

2. The battery box (10) according to claim 1, characterized in that, The battery box (10) further includes a battery guard plate (2). In the second direction, the battery guard plate (2) is located on a side of the battery cell assembly (46) facing the external device, and the mounting beam (1) has a lap joint (111) that supports the battery guard plate (2).

3. The battery box (10) according to claim 2, characterized in that, The overlap portion (111) is located on one side of the third direction of the first beam body (11), and in the second direction, the distance between the surface of the overlap portion (111) facing the second beam body (12) and the surface of the first beam body (11) facing the second beam body (12) is greater than or equal to the thickness of the battery guard plate (2), wherein the first direction, the second direction and the third direction are perpendicular to each other.

4. The battery box (10) according to any one of claims 1-3, characterized in that, In the third direction, the width of the first beam body (11) is greater than the width of the second beam body (12).

5. The battery box (10) according to claim 4, characterized in that, In the width direction of the first beam body (11), the second beam body (12) is located in the middle of the first beam body (11).

6. The battery box (10) according to any one of claims 2-3, characterized in that, The battery guard plate (2) is provided with an escape space (23), and at least a portion of the second beam body (12) extends out of the escape space (23).

7. The battery box (10) according to claim 6, characterized in that, The length of the first beam body (11) is greater than the length of the second beam body (12), and the battery guard plate (2) surrounds the outer periphery of the second beam body (12).

8. The battery box (10) according to claim 6, characterized in that, The battery guard plate (2) comprises a first battery guard plate (21) and a second battery guard plate (22), wherein the first battery guard plate (21) and the second battery guard plate (22) are respectively located on both sides of the mounting beam (1) in a third direction.

9. The battery box (10) according to claim 6, characterized in that, The battery guard plate (2) has a liquid cooling channel therein.

10. The battery box (10) according to claim 9, characterized in that, At least one first notch (121) is provided on the second beam body (12), and a first connecting pipe (24) communicating with the liquid cooling channel is provided in the first notch (121).

11. The battery box (10) according to claim 10, characterized in that, The first notch (121) has an opening facing one side of the second direction, and the battery box (10) further comprises a reinforcing bracket (124), wherein the reinforcing bracket (124) is fixedly connected to the opening.

12. The battery box (10) according to claim 11, characterized in that, The reinforcing bracket (124) has a second notch (1241) opposite to the first notch (121).

13. The battery box (10) according to any one of claims 10-12, characterized in that, Two first notches (121) are provided, and the two first notches (121) are respectively located at two ends of the second beam body (12).

14. The battery box (10) according to claim 8, characterized in that, The battery box (10) further comprises a first mounting longitudinal beam (41) and a second mounting longitudinal beam (42) arranged in parallel and at intervals, the two ends of the first beam body (11) being fixedly connected to the first mounting longitudinal beam (41) and the second mounting longitudinal beam (42), respectively, and a first spacing space (13) being provided between at least one end of the second beam body (12) and the first mounting longitudinal beam (41) and / or the second mounting longitudinal beam (42), wherein a liquid cooling pipeline for connecting the liquid cooling channel of the first battery guard plate (21) and the liquid cooling channel of the second battery guard plate (22) is provided in the first spacing space (13).

15. The battery box (10) according to claim 14, characterized in that, The battery box (10) further comprises: a fixing bracket (14), wherein the fixing bracket (14) is connected between at least one end of the second beam body (12) and the first mounting longitudinal beam (41) and / or the second mounting longitudinal beam (42).

16. The battery box (10) according to claim 1, characterized in that, Also includes: A bottom liquid cooling plate (3), in the second direction, the bottom liquid cooling plate (3) is located on a side of the battery core assembly (46) facing away from the external device.

17. The battery box (10) according to claim 16, characterized in that, The bottom liquid cooling plate (3) comprises a first liquid cooling plate (31) and a second liquid cooling plate (32), wherein the first liquid cooling plate (31) and the second liquid cooling plate (32) are respectively located on both sides of the mounting beam (1) in a third direction.

18. The battery box (10) according to claim 17, characterized in that, The battery box (10) further comprises a first mounting longitudinal beam (41) and a second mounting longitudinal beam (42) arranged in parallel and spaced apart. A second spacing space (15) is provided between at least one end of the mounting beam (1) and the first mounting longitudinal beam (41) and / or the second mounting longitudinal beam (42). A second connecting pipe (33) for connecting the first liquid cooling plate (31) and the second liquid cooling plate (32) is provided in the second spacing space (15).

19. The battery box (10) according to claim 18, characterized in that, The battery box (10) further comprises a connecting bracket connected between at least one end of the mounting beam (1) and the first mounting longitudinal beam (41) and / or the second mounting longitudinal beam (42).

20. The battery box (10) according to claim 1, characterized in that The second beam body (12) has a first cavity (122) and a second cavity (123), wherein the second cavity (123) is located on a side of the first cavity (122) away from the first beam body (11), and in a second direction, the height of the second cavity (123) is greater than the height of the first cavity (122), and a fixing member (53) connected to the external device is located in the second cavity (123).

21. A battery (103), characterized in that, include: The battery box (10) according to any one of claims 1 to 20.

22. A vehicle (100), characterized in that, include: The battery (103) as claimed in claim 21.

23. The vehicle (100) according to claim 22, characterized in that, include: The external device is a seat mounting crossbeam (5), the seat mounting crossbeam (5) having a first groove (51) recessed in a direction away from the battery (103), and the second beam body (12) is located in the first groove (51).

24. The vehicle (100) according to claim 23, characterized in that The battery box (10) further includes a first mounting longitudinal beam (41), a second mounting longitudinal beam (42), a first cross beam (43), and a second cross beam (44) that are arranged in parallel at intervals. The first mounting longitudinal beam (41), the second mounting longitudinal beam (42), the first cross beam (43), and the second cross beam (44) define an accommodation space (45). Among them, the first mounting longitudinal beam (41) is the right sill beam of the vehicle (100), and the second mounting longitudinal beam (42) is the left sill beam of the vehicle (100).

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