Battery box, battery pack and vehicle

Abstract

This disclosure relates to a battery box, battery pack, and vehicle. The battery box includes a box body and a cover plate. The box body includes a beam structure. The beam structure has a first surface facing the cover plate, and the cover plate has a second surface facing the beam structure. At least one of the first and second surfaces is provided with an adhesive-containing groove, forming an adhesive-containing space between the beam structure and the cover plate. A connecting adhesive layer is disposed in the adhesive-containing space, and the beam structure and the cover plate are bonded together via the connecting adhesive layer. An adhesive-blocking strip is disposed between the first and second surfaces, located on the side of the connecting adhesive layer away from the cavity of the battery box. Through the above structural design, this disclosure reduces the space occupied by the connection structure between the cover plate and the beam structure in the internal space of the battery box, saving more space for the arrangement of battery cells, which is beneficial to improving the cell integration efficiency and increasing the energy density of the battery pack. The adhesive-containing space of this disclosure can ensure that the connecting adhesive layer has sufficient adhesive. This disclosure uses an adhesive-blocking strip to block the adhesive material and prevent adhesive overflow.

Description

Technical Field

[0001] This disclosure relates to the field of automotive power battery technology, and in particular to a battery box, battery pack and vehicle. Background Technology

[0002] In existing battery pack designs, the battery box cover is bolted to the box frame. This connection method imposes high requirements on the structural space, affects the arrangement of batteries in the limited space of the battery box, reduces the cell integration efficiency, and affects the energy density of the battery pack. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this disclosure provides a battery box, a battery pack, and a vehicle.

[0004] According to a first aspect of the present disclosure, a battery box is provided, including a box body and a cover plate. The box body includes a beam structure that encloses a cavity of the battery box. The beam structure has a first surface facing the cover plate, and the cover plate has a second surface facing the beam structure. At least one of the first surface and the second surface is provided with an adhesive groove, which forms an adhesive space between the beam structure and the cover plate. A connecting adhesive layer is provided in the adhesive space, and the beam structure and the cover plate are bonded together via the connecting adhesive layer. A baffle strip is provided between the first surface and the second surface, and the baffle strip is located on the side of the connecting adhesive layer away from the cavity.

[0005] In some exemplary embodiments of this disclosure, the first surface is provided with the adhesive-containing groove, and the adhesive-containing groove and the second surface together form the adhesive-containing space.

[0006] In some exemplary embodiments of this disclosure, the extending direction of the adhesive groove is parallel to the extending direction of the beam structure.

[0007] In some exemplary embodiments of this disclosure, the adhesive reservoir extends along a first direction, and the ratio of the depth of the adhesive reservoir to the width of the adhesive reservoir along a second direction perpendicular to the first direction is 1 / 50 to 1 / 10.

[0008] In some exemplary embodiments of this disclosure, a gap exists between the first surface and the second surface, and the adhesive groove, the second surface, and part of the gap together form the adhesive space.

[0009] In some exemplary embodiments of this disclosure, the ratio of the depth of the adhesive groove to the height of the gap is 1 / 2 to 2 / 1.

[0010] In some exemplary embodiments of this disclosure, the adhesive layer includes a first part and a second part; the first part is located between the bottom of the adhesive reservoir and the second surface; the second part connects to the side of the first part in a second direction and is located between the first surface and the second surface, the second direction being perpendicular to the extension direction of the beam structure.

[0011] In some exemplary embodiments of this disclosure, the adhesive layer includes two second portions, which are respectively connected to the two sides of the first portion in the second direction.

[0012] In some exemplary embodiments of this disclosure, the ratio of the width of the first part to the width of the second part along the second direction is 2 / 1 to 10 / 1.

[0013] In some exemplary embodiments of this disclosure, a sealing strip is further provided between the first surface and the second surface, the sealing strip being located on the side of the adhesive strip away from the connecting adhesive layer.

[0014] In some exemplary embodiments of this disclosure, at least one of the first surface and the second surface is provided with a receiving groove, and the adhesive strip is disposed between one of the first surface and the second surface and the bottom of the receiving groove, or disposed between the bottoms of the two receiving grooves.

[0015] In some exemplary embodiments of this disclosure, the battery box further includes a connector that connects the cover plate to the beam structure, the connector being located on the side of the adhesive layer away from the chamber.

[0016] According to a second aspect of the present disclosure, a battery pack is provided, wherein the battery pack includes the battery box proposed in the present disclosure and described in the above embodiments.

[0017] According to a third aspect of the present disclosure, a vehicle is provided, wherein the vehicle includes the battery pack proposed in the present disclosure and described in the above embodiments.

[0018] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: The battery box proposed in this disclosure includes a box body and a cover plate. The box body includes a beam structure, which participates in enclosing the cavity of the battery box. The beam structure has a first surface facing the cover plate, and the cover plate has a second surface facing the beam structure. At least one of the first surface and the second surface is provided with an adhesive groove, which forms an adhesive space between the beam structure and the cover plate. A connecting adhesive layer is provided in the adhesive space, and the beam structure and the cover plate are bonded together via the connecting adhesive layer. A baffle strip is provided between the first surface and the second surface, and the baffle strip is located on the side of the connecting adhesive layer away from the cavity of the battery box. Through the above structural design, this disclosure provides a connecting adhesive layer between the cover plate and the beam structure of the box body, and uses the connecting adhesive layer to realize the adhesive connection between the cover plate and the beam structure. This reduces the space occupied by the connection structure between the cover plate and the beam structure in the internal space of the battery box, saves more space for the arrangement of the battery cells, and is conducive to improving the cell integration efficiency and increasing the energy density of the battery pack. Based on this, the present disclosure forms a space between the first surface of the beam structure and the second surface of the cover plate to accommodate the adhesive layer, ensuring sufficient adhesive content in the adhesive layer and thus improving the stability and reliability of the connection between the cover plate and the housing. Furthermore, the present disclosure utilizes a baffle strip to block the adhesive material, preventing adhesive overflow during assembly.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0021] Figure 1 This is a perspective view of a battery box shown according to some exemplary embodiments of the present disclosure;

[0022] Figure 2 yes Figure 1 A plan view of the battery box is shown;

[0023] Figure 3 It is along Figure 2 A sectional view of line AA in the diagram;

[0024] Figure 4 yes Figure 3 An enlarged schematic diagram of part B in the diagram;

[0025] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0026] Figure 6 yes Figure 1The diagram shows a partially enlarged view of the battery pack in its disassembled state.

[0027] Figure 7 This is a block diagram of a vehicle illustrated according to some exemplary embodiments of the present disclosure.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Box;

[0030] 101. Chamber;

[0031] 110. Beam structure;

[0032] 111. First surface;

[0033] 112. Glue container;

[0034] 113. Receiving tank;

[0035] 200. Cover plate;

[0036] 201. Second surface;

[0037] 310. Connecting adhesive layer;

[0038] 311. Part One;

[0039] 312. Part Two;

[0040] 320. Sealing strip;

[0041] 330. Rubber-blocking strip;

[0042] 340. Connecting parts;

[0043] 610. Infotainment system;

[0044] 620. Sensing system;

[0045] 630. Decision control system;

[0046] 640. Drive system;

[0047] 650. Computing platform;

[0048] 651. Processor;

[0049] 652. Memory;

[0050] 653. Instructions;

[0051] G. Gap;

[0052] H1. Depth;

[0053] H2. Height;

[0054] W1. Width;

[0055] W2. Width. Detailed Implementation

[0056] Some embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0057] The embodiments described in the following examples of this disclosure are not representative of all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0058] See Figure 1 The illustration shows a representative perspective view of the battery box proposed in this disclosure. In this exemplary embodiment, the battery box proposed in this disclosure is described using an application to an on-board power battery as an example. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the relevant designs of this disclosure to other types of battery devices, and these changes are still within the scope of the principles of the battery box proposed in this disclosure.

[0059] like Figure 1 As shown, in one embodiment of this disclosure, the battery box includes a housing 100 and a cover 200. (See also...) Figures 2 to 6 , Figure 2 A schematic plan view of the battery box is shown in the figure. Figure 3 The middle section represents the direction along Figure 2 A sectional view of line AA in the diagram; Figure 4 China representatively shows Figure 3 An enlarged schematic diagram of part B in the diagram; Figure 5 China representatively shows Figure 4 A magnified view of a portion of the image; Figure 6 The diagram shows a partially enlarged view of the battery box in its disassembled state. The structure, connection method, and functional relationship of the main components of the battery box proposed in this disclosure will be described in detail below with reference to the above-mentioned figures.

[0060] like Figures 1 to 6As shown, in one embodiment of this disclosure, the housing 100 includes a beam structure 110, which encloses the chamber 101 of the battery box. For example, the beam structure 110 can be an end beam or side beam forming a frame, and the chamber 101 of the battery box can be, for example, a battery compartment for accommodating battery cells or an electrical compartment for accommodating electrical components. The beam structure 110 has a first surface 111 facing the cover plate 200, and the cover plate 200 has a second surface 201 facing the beam structure 110. Based on this, the first surface 111 is provided with an adhesive groove 112, which, together with the second surface 201, forms an adhesive space. A connecting adhesive layer 310 is provided in the adhesive space, thereby bonding the beam structure 110 and the cover plate 200 via the connecting adhesive layer 310. A retaining strip 330 is provided between the first surface 111 and the second surface 201, and the retaining strip 330 is located on the side of the connecting adhesive layer 310 away from the chamber 101 of the battery box. Through the above structural design, this disclosure provides a connecting adhesive layer 310 between the cover plate 200 and the beam structure 110 of the housing 100. The connecting adhesive layer 310 achieves the adhesive connection between the cover plate 200 and the beam structure 110, thereby reducing the space occupied by the connection structure between the cover plate 200 and the beam structure 110 within the battery box, saving more space for cell arrangement, improving cell integration efficiency, and increasing the energy density of the battery pack. Furthermore, this disclosure forms an adhesive-containing space between the first surface 111 of the beam structure 110 and the second surface 201 of the cover plate 200 to accommodate the connecting adhesive layer 310, ensuring sufficient adhesive content in the connecting adhesive layer 310, thus improving the stability and reliability of the connection between the cover plate 200 and the housing 100. Moreover, this disclosure utilizes a baffle strip 330 to block the adhesive material, preventing the adhesive material of the connecting adhesive layer 310 from overflowing during assembly.

[0061] It should be noted that the battery box described in this disclosure is illustrated by an example where the top of the box 100 has an opening and the cover 200 is located at the top opening of the box 100. In other embodiments of this disclosure, the battery box may also adopt other forms of battery box and cover 200 cooperation structure, for example, the cover 200 may be located at the bottom opening of the box 100. Furthermore, Figures 1 to 6The illustrated embodiment uses the example of an adhesive-containing groove 112 on the first surface 111 and the second surface 201 (which may also include the gap G described below) forming an adhesive-containing space. In other embodiments of this disclosure, an adhesive-containing groove 112 may also be provided at a corresponding position on the second surface 201. Accordingly, the adhesive-containing groove 112 on the first surface 111 and the adhesive-containing groove 112 on the second surface 201 together form an adhesive-containing space. Alternatively, an adhesive-containing groove 112 may be provided only on the second surface 201, in which case the adhesive-containing groove 112 on the second surface 201 and the first surface 111 together form an adhesive-containing space. As described above, in various possible embodiments conforming to the design concept of this disclosure, at least one of the first surface 111 and the second surface 201 is provided with an adhesive-containing groove 112, and the adhesive-containing groove 112 provided by at least one of them and the other or the other provided with an adhesive-containing groove 112 together form an adhesive-containing space. That is, the adhesive layer 310 is connected between the adhesive-containing groove 112 and the second surface 201 (e.g., Figures 1 to 6 (As shown in the embodiment), or, the adhesive layer 310 is connected between the adhesive reservoir 112 and the first surface 111, or the adhesive layer 310 is connected between two oppositely arranged adhesive reservoirs 112, and none of these are limited to this embodiment.

[0062] like Figure 6 As shown, in one embodiment of this disclosure, the extending direction of the adhesive receiving groove 112 is parallel to the extending direction of the beam structure 110. Specifically, taking the end beam of the box body 100 as an example, the extending direction of the beam structure 110 can be, for example, direction D1 shown in the figure, and the adhesive receiving groove 112 can extend along direction D1. Through the above structural design, this disclosure can achieve the goal of providing an adhesive receiving groove 112 that covers most or all of the area of ​​the beam structure 110 in the extending direction, which is beneficial to simplifying the structural complexity, reducing the processing difficulty, and improving the bonding strength of the adhesive layer 310. In other embodiments of this disclosure, the adhesive receiving groove 112 can also extend in other directions, such as along a second direction perpendicular to the first direction (for example, direction D2 shown in the figure), and is not limited to this embodiment.

[0063] like Figure 5As shown, in one embodiment of this disclosure, taking the adhesive reservoir 112 extending along the first direction as an example, the ratio of the depth H1 of the adhesive reservoir 112 to the width of the adhesive reservoir 112 along the second direction can be 1 / 50 to 1 / 10, for example, 1 / 50, 1 / 45, 1 / 35, 1 / 30, 1 / 25, 1 / 20, 1 / 15, 1 / 12, 1 / 10, etc. The width of the adhesive reservoir 112 mentioned above is the width W1 of the first part of the connecting adhesive layer shown in the figure. Specifically, the ratio of the depth H1 of the adhesive reservoir 112 to the width of the adhesive reservoir 112 is preferably 1 / 40. Through the above structural design, this disclosure selects a suitable range for the ratio of the depth H1 to the width of the adhesive reservoir 112. On the one hand, if the aforementioned ratio is too small, the adhesive groove 112 will be too shallow, which is not conducive to the setting of the adhesive layer 310 (e.g., coating or injection of adhesive material), or the adhesive groove 112 will be too wide, causing space occupation or affecting the arrangement of other components. On the other hand, if the aforementioned ratio is too large, the adhesive groove 112 will be too deep, affecting the structural strength of the beam structure 110, or the adhesive groove 112 will be too narrow, affecting the bonding effect of the adhesive layer 310. Accordingly, this disclosure can facilitate the setting of the adhesive layer 310 and ensure the bonding effect of the adhesive layer 310, while avoiding affecting the structural strength of the beam structure 110 or occupying too much space. In some other embodiments of this disclosure, the ratio of the depth H1 of the adhesive groove 112 to the width of the adhesive groove 112 may also be less than 1 / 50 or greater than 1 / 10, such as 1 / 51, 1 / 9, etc., and is not limited to this embodiment.

[0064] like Figure 5 As shown, in one embodiment of this disclosure, a gap G may exist between the first surface 111 of the beam structure 110 and the second surface 201 of the cover plate 200. Accordingly, the adhesive receiving groove 112, the second surface 201, and part of the gap G together form an adhesive receiving space; that is, a portion of the connecting adhesive layer 310 is accommodated in the adhesive receiving groove 112, and another portion of the connecting adhesive layer 310 is located in the gap G. Through the above structural design, this disclosure can utilize the gap G to allow partial overflow of the adhesive material of the connecting adhesive layer 310 during the assembly process of the beam structure 110 and the cover plate 200, which is beneficial to the smooth implementation of the assembly process and ensures the connection effect of the connecting adhesive layer 310.

[0065] like Figure 5As shown, based on the structural design with a gap G between the first surface 111 and the second surface 201, in one embodiment of this disclosure, the adhesive layer 310 may include a first part 311 and a second part 312. Specifically, the first part 311 is located between the bottom of the adhesive reservoir 112 and the second surface 201, that is, a portion of the first part 311 is accommodated in the adhesive reservoir 112, and another portion of the adhesive layer 310 is located in the gap G. The second part 312 connects to the side of the first part 311 in the second direction and is located between the first surface 111 and the second surface 201, that is, the second part 312 is located in the gap G. Through the above structural design, this disclosure can increase the bonding area between the adhesive layer 310 and the beam structure 110 and the cover plate 200, and improve the connection effect between the beam structure 110 and the cover plate 200.

[0066] like Figure 5 As shown, based on the structural design of the adhesive layer 310, which includes a first part 311 and a second part 312, in one embodiment of this disclosure, the adhesive layer 310 may include two second parts 312, which are respectively connected to the two sides of the first part 311 in a second direction. Through the above structural design, this disclosure can further increase the bonding area between the adhesive layer 310 and the beam structure 110 and the cover plate 200, thereby further improving the connection effect.

[0067] like Figure 5 As shown, based on the structural design of the connecting adhesive layer 310 including a first part 311 and a second part 312, in one embodiment of this disclosure, along the second direction, the ratio of the width W1 of the first part 311 to the width W2 of the second part 312 can be 2 / 1 to 10 / 1, for example, 2 / 1, 5 / 2, 8 / 3, 3 / 1, 10 / 3, 4 / 1, 5 / 1, 8 / 1, 10 / 1, etc. Through the above structural design, this disclosure selects a suitable range for the ratio of the width W1 of the first part 311 to the width W2 of the second part 312. On the one hand, if the ratio is too small, the first part 311 will be too narrow, which is not conducive to the arrangement of the connecting adhesive layer 310. On the other hand, if the ratio is too large, the second part 312 will be too narrow, which is not conducive to glue overflow. Accordingly, this disclosure can ensure the bonding strength between the beam structure 110 and the cover plate 200 through the connecting adhesive layer 310, while providing a suitable overflow space for the glue material overflowing from the glue container 112 during the assembly process.

[0068] like Figure 5As shown, based on the structural design with a gap G between the first surface 111 and the second surface 201, in one embodiment of this disclosure, the ratio of the depth H1 of the adhesive groove 112 to the height H2 of the gap G can be 1 / 2 to 2 / 1, for example, 1 / 2, 3 / 5, 4 / 5, 5 / 4, 3 / 2, 7 / 4, 2 / 1, etc. Specifically, the ratio of the depth H1 of the adhesive groove 112 to the height H2 of the gap G can preferably be 1 / 1, that is, the depth H1 of the adhesive groove 112 can be equal to the height H2 of the gap G. Based on this, for the connecting adhesive layer 310 including the first part 311 and the second part 312, since the thickness of the first part 311 is approximately equal to the sum of the thickness H1 of the adhesive groove 112 and the thickness H2 of the gap G, and the thickness of the second part 312 is equal to the thickness H2 of the gap G, the ratio of the thickness of the first part 311 to the thickness of the second part 312 can be 3 / 2 to 3 / 1, for example, 3 / 2, 8 / 5, 9 / 5, 2 / 1, 9 / 4, 5 / 2, 11 / 4, 3 / 1, etc. Through the above structural design, this disclosure selects a suitable range for the ratio of the depth H1 of the adhesive groove 112 to the height H2 of the gap G. On the one hand, if the above ratio is too small, the adhesive groove 112 will be too shallow, which is not conducive to the arrangement of the connecting adhesive layer 310, or the gap G will be too large, so that the adhesive material overflowing from the adhesive groove 112 to the gap G during the assembly process cannot fully contact the second surface 201 of the cover plate 200. On the other hand, if the aforementioned ratio is too large, it may cause the adhesive groove 112 to be too deep, affecting the structural strength of the beam structure 110, or it may cause the gap G to be too small, insufficient to accommodate the adhesive material overflowing from the adhesive groove 112 into the gap G during assembly. Accordingly, this disclosure can ensure the bonding strength between the beam structure 110 and the cover plate 200 via the connecting adhesive layer 310, while providing a suitable overflow space for the adhesive material overflowing from the adhesive groove 112 during assembly. In other embodiments of this disclosure, the ratio of the depth H1 of the adhesive groove 112 to the height H2 of the gap G may be less than 1 / 2 or greater than 2 / 1, such as 2 / 5, 11 / 5, etc., and is not limited to this embodiment.

[0069] In one embodiment of this disclosure, the adhesive layer 310 may be made of structural adhesive.

[0070] In one embodiment of this disclosure, the beam structure 110 may be made of aluminum alloy, and further, the beam structure 110 may be made of aluminum alloy profile.

[0071] like Figure 4 and Figure 5As shown, in one embodiment of this disclosure, a sealing strip 320 may be provided between the first surface 111 of the beam structure 110 and the second surface 201 of the cover plate 200. This sealing strip 320 is located on the side of the adhesive strip 330 away from the connecting adhesive layer 310. Through the above structural design, this disclosure utilizes the sealing strip 320 to seal the outer side of the bonding position of the connecting adhesive layer 310, ensuring the sealing performance of the battery box 100. Furthermore, this disclosure utilizes the adhesive strip 330 to block the adhesive material, preventing the adhesive material of the connecting adhesive layer 310 from overflowing into the sealing strip 320 during assembly, ensuring that the structure of the sealing strip 320 is not affected, and guaranteeing the sealing performance.

[0072] Based on the structural design of a sealing strip 320 provided between the first surface 111 and the second surface 201, in one embodiment of this disclosure, the sealing strip 320 can be made of foam.

[0073] like Figure 5 As shown, in one embodiment of this disclosure, the first surface 111 of the beam structure 110 may be provided with a receiving groove 113, and the adhesive-blocking strip 330 is partially disposed in the receiving groove 113, that is, the adhesive-blocking strip 330 is disposed between the bottom of the receiving groove 113 and the second surface 201 of the cover plate 200. Through the above structural design, this disclosure utilizes the receiving groove 113 to further provide the function of receiving overflow adhesive, preventing adhesive from overflowing to the sealing strip 320. In some other embodiments of this disclosure, a receiving groove 113 may also be provided at the corresponding position of the second surface 201. Accordingly, the receiving groove 113 of the first surface 111 and the receiving groove 113 of the second surface 201 together form a space for arranging the adhesive-blocking strip 330 (or sealing strip 320). Alternatively, the receiving groove 113 may only be provided on the second surface 201, in which case the receiving groove 113 of the second surface 201 and the first surface 111 together form a space for arranging the adhesive-blocking strip 330. As described above, in various possible embodiments conforming to the design concept of this disclosure, at least one of the first surface 111 and the second surface 201 is provided with a receiving groove 113, and the receiving groove 113 of the at least one surface and the other surface or the receiving groove 113 of the other surface together form a space for arranging the adhesive strip 330, that is, the adhesive strip 330 is disposed between the receiving groove 113 and the second surface 201 (e.g., Figure 5 (As shown in the embodiment), or, the adhesive strip 330 is disposed between the receiving groove 113 and the first surface 111, or, the connecting adhesive layer 310 is connected between two oppositely arranged receiving grooves 113, none of which are limited to this embodiment.

[0074] like Figure 5As shown, based on the structural design of the receiving groove 113 provided on the first surface 111, in one embodiment of this disclosure, the sealing strip 320 may also be partially provided in the receiving groove 113, that is, the sealing strip 320 is provided between the bottom of the receiving groove 113 and the second surface 201 of the cover plate 200.

[0075] In one embodiment of this disclosure, the material of the adhesive strip 330 may be foam.

[0076] like Figure 4 As shown, in one embodiment of this disclosure, the battery box further includes a connector 340, which connects the cover plate 200 and the beam structure 110. The connector 340 is located on the side of the connecting adhesive layer 310 away from the chamber 101 (specifically, it can be located on the side of the sealing strip 330 away from the connecting adhesive layer 310, or further, it can be located on the side of the sealing strip 320 away from the sealing strip 330). The connector 340 can be, for example, but not limited to, a bolt. Through the above structural design, this disclosure achieves an inner and outer connection structure between the beam structure 110 and the cover plate 200, i.e., the inner side is bonded by the connecting adhesive layer 310, and the outer side is connected by the connector 340, thereby improving the connection effect between the box body 100 and the cover plate 200. Furthermore, existing solutions use two sets of connectors, inner and outer, to achieve the above-mentioned inner and outer connection structure design. In contrast, this application uses the connecting adhesive layer 310 for bonding on the inner side, which can achieve a better connection effect while further reducing the space occupied by the limited battery box.

[0077] It should be noted that the battery cases shown in the accompanying drawings and described in this specification are merely a few examples among many battery cases in which the principles of this disclosure can be employed. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the battery cases shown in the accompanying drawings or described in this specification.

[0078] Based on the above detailed description of several exemplary embodiments of the battery box proposed in this disclosure, an exemplary embodiment of the battery pack proposed in this disclosure will be described below.

[0079] In one embodiment of this disclosure, the battery pack proposed in this disclosure includes the battery box proposed in this disclosure and described in detail in the above embodiments.

[0080] It should be noted that the battery packs shown in the accompanying drawings and described in this specification are merely a few examples among many battery packs capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the battery packs shown in the accompanying drawings or described in this specification.

[0081] Based on the above detailed description of an exemplary embodiment of the battery pack proposed in this disclosure, an exemplary embodiment of the vehicle proposed in this disclosure will be described below.

[0082] In one embodiment of this disclosure, the vehicle proposed in this disclosure includes the battery pack proposed in this disclosure and described in the above embodiments.

[0083] Figure 7 This is a block diagram illustrating a vehicle 600 according to an exemplary embodiment. For example, vehicle 600 may be a hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicle. Vehicle 600 may be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0084] Reference Figure 7 The vehicle 600 may include various subsystems, such as an infotainment system 610, a perception system 620, a decision control system 630, a drive system 640, and a computing platform 650. The vehicle 600 may also include more or fewer subsystems, and each subsystem may include multiple components. Furthermore, each subsystem and each component of the vehicle 600 can be interconnected via wired or wireless means.

[0085] In some embodiments, the infotainment system 610 may include a communication system, an entertainment system, and a navigation system, etc.

[0086] The perception system 620 may include several sensors for sensing information about the environment surrounding the vehicle 600. For example, the perception system 620 may include a global positioning system (which may be GPS, BeiDou, or other positioning systems), an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.

[0087] The decision control system 630 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0088] The drive system 640 may include components that provide powered motion to the vehicle 600. In one embodiment, the drive system 640 may include an engine, an energy source, a transmission system, and wheels. The engine may be one or a combination of internal combustion engines, electric motors, and compressed air engines. The engine is capable of converting energy provided by the energy source into mechanical energy. The energy source may include the battery pack disclosed herein.

[0089] Some or all of the functions of vehicle 600 are controlled by computing platform 650. Computing platform 650 may include at least one processor 651 and memory 652, processor 651 can execute instructions 653 stored in memory 652.

[0090] Processor 651 can be any conventional processor, such as a commercially available CPU. The processor may also include, for example, a Graphics Processing Unit (GPU), a Field Programmable Gate Array (FPGA), a System on Chip (SOC), an Application Specific Integrated Circuit (ASIC), or a combination thereof.

[0091] The memory 652 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0092] In addition to instruction 653, memory 652 can also store data, such as road maps, route information, vehicle position, direction, speed, and other data. The data stored in memory 652 can be used by computing platform 650.

[0093] It should be noted that the vehicles shown in the accompanying drawings and described in this specification are merely a few examples among many vehicles capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the vehicles shown in the accompanying drawings or described in this specification.

[0094] In summary, the battery box proposed in this disclosure includes a box body 100 and a cover plate 200. The box body 100 includes a beam structure 110, which encloses the cavity 101 of the battery box. The beam structure 110 has a first surface 111 facing the cover plate 200, and the cover plate 200 has a second surface 201 facing the beam structure 110. At least one of the first surface 111 and the second surface 201 is provided with an adhesive groove 112, which forms an adhesive space between the beam structure 110 and the cover plate 200. A connecting adhesive layer 310 is provided in the adhesive space, and the beam structure 110 and the cover plate 200 are bonded together via the connecting adhesive layer 310. An adhesive-blocking strip 330 is provided between the first surface 111 and the second surface 201, and the adhesive-blocking strip 330 is located on the side of the connecting adhesive layer 310 away from the cavity 101 of the battery box. Through the above structural design, this disclosure provides a connecting adhesive layer 310 between the cover plate 200 and the beam structure 110 of the housing 100. The connecting adhesive layer 310 achieves the adhesive connection between the cover plate 200 and the beam structure 110, thereby reducing the space occupied by the connection structure between the cover plate 200 and the beam structure 110 within the battery box, saving more space for cell arrangement, improving cell integration efficiency, and increasing the energy density of the battery pack. Furthermore, this disclosure forms an adhesive-containing space between the first surface 111 of the beam structure 110 and the second surface 201 of the cover plate 200 to accommodate the connecting adhesive layer 310, ensuring sufficient adhesive content in the connecting adhesive layer 310, thus improving the stability and reliability of the connection between the cover plate 200 and the housing 100. Moreover, this disclosure utilizes a baffle strip 330 to block the adhesive material, preventing the adhesive material of the connecting adhesive layer 310 from overflowing during assembly.

[0095] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0096] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding the specification and drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0097] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0098] It should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein according to the specific circumstances.

[0099] Although terms such as “first” and “second” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0100] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0101] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery box, characterized in that: The battery box includes a housing (100) and a cover plate (200). The housing (100) includes a beam structure (110) that encloses a chamber (101) of the battery box. The beam structure (110) has a first surface (111) facing the cover plate (200), and the cover plate (200) has a second surface (201) facing the beam structure (110). At least one of the first surface (111) and the second surface (201) is provided with an adhesive groove (112), the adhesive groove (112) forming an adhesive space between the beam structure (110) and the cover plate (200); a connecting adhesive layer (310) is provided in the adhesive space, and the beam structure (110) and the cover plate (200) are bonded together via the connecting adhesive layer (310); A sealing strip (330) is provided between the first surface (111) and the second surface (201), and the sealing strip (330) is located on the side of the connecting adhesive layer (310) away from the chamber (101).

2. The battery box according to claim 1, characterized in that, The first surface (111) is provided with the adhesive receiving groove (112), and the adhesive receiving groove (112) and the second surface (201) together form the adhesive receiving space.

3. The battery box according to claim 2, characterized in that, The extension direction of the adhesive groove (112) is parallel to the extension direction of the beam structure (110).

4. The battery box according to claim 2, characterized in that, The adhesive reservoir (112) extends along a first direction, and the ratio of the depth (H1) of the adhesive reservoir (112) to the width of the adhesive reservoir (112) along a second direction perpendicular to the first direction is 1 / 50 to 1 / 10.

5. The battery box according to claim 2, characterized in that, There is a gap (G) between the first surface (111) and the second surface (201), and the adhesive groove (112), the second surface (201) and part of the gap (G) together form the adhesive space.

6. The battery box according to claim 5, characterized in that, The ratio of the depth (H1) of the adhesive groove (112) to the height (H2) of the gap (G) is 1 / 2 to 2 / 1.

7. The battery box according to claim 5, characterized in that, The connecting adhesive layer (310) includes a first part (311) and a second part (312); the first part (311) is located between the bottom of the adhesive container (112) and the second surface (201); the second part (312) connects the side of the first part (311) in a second direction and is located between the first surface (111) and the second surface (201), the second direction being perpendicular to the extension direction of the beam structure (110).

8. The battery box according to claim 7, characterized in that, The adhesive layer (310) includes two second parts (312), which are respectively connected to the two sides of the first part (311) in the second direction.

9. The battery box according to claim 7, characterized in that, Along the second direction, the ratio of the width (W1) of the first part (311) to the width of the second part (312) is 2 / 1 to 10 / 1.

10. The battery box according to claim 1, characterized in that, A sealing strip (320) is also provided between the first surface (111) and the second surface (201), and the sealing strip (320) is located on the side of the adhesive strip (330) away from the connecting adhesive layer (310).

11. The battery box according to claim 1, characterized in that, At least one of the first surface (111) and the second surface (201) is provided with a receiving groove (113), and the adhesive strip (330) is disposed between one of the first surface (111) and the second surface (201) and the bottom of the receiving groove (113), or disposed between the bottoms of the two receiving grooves (113).

12. The battery box according to claim 1, characterized in that, The battery box also includes a connector (340) that connects the cover plate (200) to the beam structure (110), and the connector (340) is located on the side of the connecting adhesive layer (310) away from the chamber (101).

13. A battery pack, characterized in that, The battery pack includes the battery box as described in any one of claims 1 to 12.

14. A vehicle, characterized in that, The vehicle includes the battery pack as described in claim 13.

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