Mounting structure, battery case, battery, and electric device

Abstract

A mounting structure (1), a battery case (100), a battery (200), and an electric device (1000). The mounting structure (1) comprises mounting beams (11), shielding members (12), and sealing members (13); a cavity (11a) is defined in each mounting beam (11), and a first communication port (11d) enabling the inner and outer sides of the cavity (11a) to be communicated with each other is formed in the mounting beam (11); on each mounting beam (11), at least the wall surface of the cavity (11a) is provided with an electrophoretic layer, the corresponding shielding member (12) is connected to the mounting beam (11) and shields a part of the corresponding first communication port (11d), and the surface of the shielding member (12) is also provided with an electrophoretic layer; second communication ports (12a) communicated with the corresponding cavity (11a) are formed between the wall surface of the cavity (11a) and the corresponding shielding member (12) and / or in the shielding member (12); and the corresponding sealing member (13) seals the second communication ports (12a).

Description

Mounting structure, battery box, battery and electric device

[0001] Cross-reference to related applications

[0002] The present application is based on the Chinese patent application No. 202421257633.6, filed on June 4, 2024, and claims priority to the above-mentioned Chinese patent application, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of batteries, in particular to a mounting structure, a battery box, a battery and an electric device. BACKGROUND

[0004] In recent years, new energy vehicles have developed by leaps and bounds. In the field of electric vehicles, batteries, as the power source of electric vehicles, play an irreplaceable important role. Among them, the battery has a high requirement on the installation reliability.

[0005] In the related art, in order to fix the battery, the mounting structure on the battery box is generally used to mount the battery box, so the reliability of the mounting structure will affect the installation reliability of the battery.

[0006] SUMMARY

[0007] The present application provides a mounting structure, a battery box, a battery and an electric device, which has good corrosion resistance and is reliable in use.

[0008] In a first aspect, the present application provides a mounting structure, comprising: a mounting beam, the mounting beam defines a cavity inside, a first communication port is formed on the mounting beam and communicates between the inside and outside of the cavity, and an electrophoretic layer is arranged on at least the wall surface of the cavity; a shielding piece, the shielding piece is connected with the mounting beam and shields part of the first communication port, the surface of the shielding piece is also provided with an electrophoretic layer, and a second communication port is formed between the wall surface of the cavity and the shielding piece and / or on the shielding piece and communicates with the cavity; and a sealing piece, the sealing piece seals the second communication port.

[0009] In the above technical solution, by setting the shielding piece and the sealing piece, the sealing performance of the cavity at the first communication port can be improved, and the corrosion resistance of the wall surface of the cavity can be improved by the electrophoretic layer, so as to improve the use reliability of the mounting structure. Moreover, the contradiction between the welding connection of the sheet metal piece and the mounting beam and the electrophoresis of the mounting beam can be solved, and the processing convenience is improved.

[0010] In some embodiments, an elastic buckle is arranged on the outer circumferential side of the shielding piece, a clamping hole is formed on the mounting beam, and the elastic buckle is inserted into the clamping hole and abuts against the surface of the mounting beam.

[0011] In the technical solution, the elastic buckle and the clamping hole are arranged, so that the clamping connection between the shielding member and the mounting beam is facilitated, the assembly of the shielding member and the mounting beam is facilitated, the assembly efficiency of the mounting structure is improved, and the connection mode does not affect the electrophoresis process of the mounting beam and the shielding member.

[0012] In some embodiments, the first communication port is formed at an end of the mounting beam in the length direction, the clamping hole is formed on the cavity wall of the cavity and adjacent to the edge of the first communication port, the shielding member is located in the cavity, the elastic buckle extends out of the cavity through the clamping hole from the cavity, and abuts against the outer surface of the mounting beam.

[0013] In the technical solution, the distance between the clamping hole and the edge of the first communication port is short, or the distance between the clamping hole and the length end face of the mounting beam where the first communication port is formed is short, which is beneficial to improve the interference and extrusion between the shielding member and the mounting beam during the process that the elastic buckle is arranged in the clamping hole from the cavity, facilitates the smooth installation of the shielding member on the mounting beam through the elastic buckle, and to a certain extent, the outer contour of the shielding member can be appropriately increased, which is beneficial to reduce the distance between the outer peripheral wall of the shielding member and the cavity wall after the shielding member is installed, facilitate the sealing between the shielding member and the cavity wall, or facilitate the reliable sealing of the sealing member between the outer peripheral wall of the shielding member and the cavity wall.

[0014] In some embodiments, the elastic buckle is multiple and located on the same side of the shielding member, and the side of the shielding member away from the multiple elastic buckles is spaced from the wall of the cavity to form at least part of the second communication port.

[0015] In the technical solution, multiple elastic buckles are arranged on the same side of the shielding member, and the side of the shielding member away from the multiple elastic buckles is spaced from the wall of the cavity, which facilitates the smooth installation of the shielding member in the cavity along the set direction inclined to the central axis of the clamping hole, and is beneficial to improve the assembly interference between the elastic buckle and the side of the shielding member away from the elastic buckle during the installation of the shielding member, and improve the installation convenience of the shielding member.

[0016] In some embodiments, the outer peripheral wall of the shielding member, except the part connected to the elastic buckle, is spaced from the wall of the cavity to form the second communication port between the wall of the cavity and the shielding member.

[0017] In the technical solution, the outer peripheral wall of the shielding member, except the part connected to the elastic buckle, is spaced from the wall of the cavity, which facilitates the reliable and stable installation of the shielding member, improves the bearing capacity of the shielding member against the impact of the electrophoretic liquid, appropriately increases the first communication port area of the second communication port, improves the flow area of the electrophoretic liquid when entering and exiting the cavity, and is beneficial to improve the electrophoresis efficiency.

[0018] In some embodiments, the width of the second communication opening on the outer circumferential side of the shielding piece is constant in the direction around the shielding piece.

[0019] In the technical solution, the width of the second communication opening on the outer circumferential side of the shielding piece is constant in the direction around the shielding piece, so that the width of the sealing piece sealing the second communication opening can be a constant value, which is conducive to simplifying the structure of the sealing piece. In particular, when the sealing piece is made of a foaming material, the foaming ratio of the foaming material is usually constant. The above setting facilitates the sealing of the second communication opening by the foaming material with the same thickness, thereby simplifying the design of the sealing piece.

[0020] In some embodiments, the elastic buckle includes a main body part and an elastic arm part. The main body part is connected to the shielding piece and is arranged in the clamping hole. The elastic arm part is arranged in a cantilevered manner at one end of the main body part away from the shielding piece. An opening with an adjustable size is defined between the free end of the elastic arm part and the main body part. A groove recessed towards the main body part is formed on the side surface of the elastic arm part away from the main body part. The groove penetrates the free end of the elastic arm part, so that the elastic arm part abuts against the surface of the mounting beam and the hole wall of the clamping hole, respectively.

[0021] In the technical solution, the opening with an adjustable size is defined between the free end of the elastic arm part and the main body part, so that the elastic deformation capability of the elastic buckle is utilized to realize the quick, smooth and reliable installation of the shielding piece. The groove is formed on the side surface of the elastic arm part away from the main body part, so that the elastic arm part abuts against the surface of the mounting beam and the hole wall of the clamping hole, respectively. On the premise of realizing the smooth and reliable installation of the shielding piece, a part of the elastic arm part is matched in the clamping hole and abuts against the hole wall of the clamping hole after the complete installation of the shielding piece. When the shielding piece needs to be disassembled, the elastic arm part can be directly extruded until the elastic arm part is disengaged from the surface of the mounting beam, without the need to align the free end of the elastic arm part with the clamping hole, thereby facilitating the disassembly of the shielding piece.

[0022] In some embodiments, the shielding piece includes a plate body part and a connecting part. The connecting part is arranged on the plate body part and participates in defining the second communication opening. The sealing piece is connected to the side of the connecting part away from the plate body part. In the thickness direction of the plate body part, the thickness of the connecting part is greater than the thickness of the plate body part.

[0023] In the technical solution, the shielding piece includes the plate body part and the connecting part, so that the shielding piece is approximately in a plate-like structure, which is conducive to realizing the reliable shielding of part of the first communication opening. The connecting part separates the plate body part from the sealing piece, and the thickness of the connecting part is greater than the thickness of the plate body part, so as to provide a larger setting area for the sealing piece, improve the connection area of the sealing piece and the shielding piece, and realize the reliable connection of the sealing piece and the shielding piece.

[0024] In some embodiments, one of the connection portions is a first connection portion, the first connection portion is arranged at the outer circumferential side of the plate body portion, and a side surface of the first connection portion away from the plate body portion defines a second communication opening with a wall surface of the cavity; and / or one of the connection portions is a second connection portion, the second connection portion is annular, and the plate body portion is arranged at the outer circumferential side of the second connection portion, and a side surface of the second connection portion away from the plate body portion defines the second communication opening.

[0025] In the above technical solution, the side surface of the first connection portion away from the plate body portion and the wall surface of the cavity define the second communication opening, and the side surface of the second connection portion away from the plate body portion defines the second communication opening, so that no matter where the second communication opening is formed, the reliable installation of the sealing member can be facilitated.

[0026] In some embodiments, the mounting beam is a one-piece member, the cavity includes a first cavity portion and a second cavity portion arranged in sequence in the width direction of the mounting beam, the thickness of the first cavity portion is greater than the thickness of the second cavity portion in the thickness direction of the mounting beam, and an open side of the first cavity portion away from the second cavity portion is arranged.

[0027] In the above technical solution, the mounting beam is a one-piece member, which facilitates the processing of the mounting beam, and the thickness of the first cavity portion is greater than the thickness of the second cavity portion, so that the cavity wall at the connection position of the first cavity portion and the second cavity portion is not flat, and the connection position can strengthen the corresponding cavity wall, which is beneficial to improve the structural strength and stability of the mounting beam. In addition, when the mounting structure is used in a battery box body, the mounting beam is connected to the box body, and the open side of the first cavity portion is arranged towards the box body. Since the thickness of the first cavity portion is greater than the thickness of the second cavity portion, the connection reliability of the mounting beam and the box body is improved.

[0028] In some embodiments, the shielding member is a resin member or a metal member, and the sealing member is a foamed material member.

[0029] In the above technical solution, the shielding member has good structural strength, and the sealing member can reliably seal the second communication opening. Moreover, when the foamed material member is configured to be foamed by a high-temperature method, foaming can be realized simultaneously by baking in the electrophoresis process, which simplifies the processing procedure and improves the processing efficiency.

[0030] In some embodiments, in the axial direction of the second communication opening, the opposite sides of the shielding member are respectively provided with support members, the support members are arranged at the outer circumferential side of the shielding member, and the support members abut against the wall surface of the cavity.

[0031] In the technical solution, the support member is arranged at the connection position of the shielding member and the mounting beam, which is beneficial to further reduce the stress at the connection position of the shielding member and the mounting beam, for example, the shielding member is clamped on the mounting beam by the elastic buckle, and the arrangement of the support member is beneficial to improve the stress of the elastic buckle, thereby facilitating the improvement of the installation reliability of the shielding member.

[0032] In some embodiments, the support member is arranged at the connection position of the shielding member and the mounting beam.

[0033] In the technical solution, the support member is arranged at the connection position of the shielding member and the mounting beam, which is beneficial to further reduce the stress at the connection position of the shielding member and the mounting beam, for example, the shielding member is clamped on the mounting beam by the elastic buckle, and the arrangement of the support member is beneficial to improve the stress of the elastic buckle, thereby facilitating the improvement of the installation reliability of the shielding member.

[0034] In a second aspect, the embodiments of the present application provide a battery box, comprising a box body and the mounting structure described above, the box body defines a containing cavity for containing battery monomers, and the mounting structure is arranged outside the box body.

[0035] In the technical solution, the battery box adopts the mounting structure described above, and the mounting structure has good corrosion resistance and reliability, thereby improving the use reliability of the battery box. In addition, since the mounting structure is arranged outside the box body, the mounting structure does not occupy the space of the containing cavity, and the energy density of the battery is improved under the premise of reliable mounting of the battery box.

[0036] In a third aspect, the embodiments of the present application provide a battery, comprising a battery monomer and the battery box described above, and the battery monomer is arranged in the containing cavity.

[0037] In the technical solution, the battery adopts the battery box described above, and the battery box has good use reliability, thereby improving the use reliability of the battery.

[0038] In a fourth aspect, the embodiments of the present application provide a power consumption device, comprising the battery described above.

[0039] In the technical solution, the power consumption device adopts the battery described above, and the battery has good use reliability, thereby improving the use reliability of the power consumption device. BRIEF DESCRIPTION OF DRAWINGS

[0040] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0041] FIG. 1 is a structural schematic view of a vehicle according to some embodiments of the present application;

[0042] Fig. 2 is an exploded view of a battery according to some embodiments of the present application;

[0043] Fig. 3 is a partial view of a battery case according to some embodiments of the present application;

[0044] Fig. 4 is an enlarged view of the portion A shown in Fig. 3;

[0045] Fig. 5 is another view of the battery case shown in Fig. 3;

[0046] Fig. 6 is a partial cross-sectional view along the line B-B shown in Fig. 5;

[0047] Fig. 7 is an assembly view of the mounting beam and the case shown in Fig. 6;

[0048] Fig. 8 is a view of the shield, the seal, the elastic clip and the support shown in Fig. 6;

[0049] Fig. 9 is a partial cross-sectional view along the line C-C shown in Fig. 5;

[0050] Fig. 10 is another view of the shield, the seal, the elastic clip and the support shown in Fig. 8;

[0051] Fig. 11 is a further view of the shield, the seal, the elastic clip and the support shown in Fig. 10;

[0052] Fig. 12 is yet another view of the shield, the seal, the elastic clip and the support shown in Fig. 10;

[0053] Fig. 13 is a further view of the shield, the seal, the elastic clip and the support shown in Fig. 10;

[0054] Fig. 14 is yet another view of the shield, the seal, the elastic clip and the support shown in Fig. 10.

[0055] Reference Signs:

[0056] the electrical device 1000, the controller 300, the motor 400, the battery 200, the battery cell 101,

[0057] the battery case 100, the first case 1001, the second case 1002,

[0058] the mounting structure 1, the case body 2, the accommodation cavity 2a, the first side wall 21, the second side wall 22,

[0059] mounting beam 11, cavity 11a, first cavity portion 11b, second cavity portion 11c, first communication port 11d, clamping hole 11e, shielding member 12, second communication port 12a, plate body portion 121, connecting portion 122, first connecting portion 1221, second connecting portion 1222, first shielding portion 123, second shielding portion 124, sealing member 13,

[0060] elastic clasp 14, opening 14a, main body portion 141, elastic arm portion 142, groove 142a, first slot wall 142b, second slot wall 142c, first portion 1421, second portion 1422,

[0061] support member 15. DETAILED DESCRIPTION

[0062] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0063] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0064] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0065] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "attachment" should be understood broadly, for example, it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] The term "and / or" in the present application is only used to describe the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0067] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings are only exemplary and should not constitute any limitation on the present application.

[0068] In the present application, "a plurality of" refers to two or more (including two).

[0069] In the present application, the battery cell can include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium lithium-ion battery, a sodium-ion battery, or a magnesium-ion battery, etc. The embodiments of the present application are not limited thereto. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc. The embodiments of the present application are also not limited thereto. The battery cell is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft package battery cells, and the embodiments of the present application are also not limited thereto.

[0070] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application can be a battery module or a battery pack, etc. The battery module generally includes a plurality of battery cells. The battery generally includes a battery box for packaging one or more battery cells, or one or more battery modules, which can avoid the influence of liquid or other foreign matters on the charging or discharging of the battery cell.

[0071] Exemplarily, the battery cell generally can include a shell, an electrode assembly and an electrolyte, the shell is used for accommodating the electrode assembly and the electrolyte, and the shell is provided with at least one positive pole and at least one negative pole. The electrode assembly includes one or more electrode assemblies, and the electrode assembly is formed by stacking or winding a positive pole piece, a negative pole piece and a separator film.

[0072] In recent years, new energy vehicles have made a leap in development. In the field of electric vehicles, batteries, as the power source of electric vehicles, play an irreplaceable important role. Among them, the battery has a high requirement in the aspect of installation reliability.

[0073] In the related art, in order to fix the battery, the mounting structure on the battery box is generally used to mount the battery box, and then the reliability of the mounting structure will affect the battery installation reliability.

[0074] Based on the above considerations, a mounting structure is provided, comprising a mounting beam, a shielding piece and a sealing piece, the mounting beam defines a cavity therein, the mounting beam is further formed with a first communication port communicating between the inside and outside of the cavity, at least the wall surface of the cavity of the mounting beam is provided with an electrophoretic layer, the shielding piece is connected with the mounting beam and shields part of the first communication port, the surface of the shielding piece is also provided with an electrophoretic layer, the second communication port communicating with the cavity is formed between the wall surface of the cavity and the shielding piece and / or on the shielding piece, and the sealing piece seals the second communication port.

[0075] In the above technical solution, by setting the shielding piece and the sealing piece in cooperation, the sealing performance of the cavity at the first communication port can be improved, and the corrosion resistance of the wall surface of the cavity can be improved by the setting of the electrophoretic layer, so that the use reliability of the mounting structure is improved. Moreover, the contradiction between the welding connection of the sheet metal part and the mounting beam and the electrophoresis of the mounting beam in the related art can be solved, and the processing convenience is improved.

[0076] The embodiments of the present application provide a power consumption device using the battery of the present disclosure as a power supply. The power consumption device can be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric automobile, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric automobile toy, an electric ship toy, an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, an electric planer, etc.

[0077] The following embodiments are described by taking the power consumption device 1000 as a vehicle for example for convenience of description.

[0078] Please refer to FIG. 1, which is a structural schematic diagram of the power consumption device 1000 as a vehicle according to some embodiments of the present application. The vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, etc. The vehicle is provided with a battery 200, which can be arranged at the bottom, the head, or the tail of the vehicle. The battery 200 can be used for power supply of the vehicle, for example, the battery 200 can be used as an operating power supply of the vehicle. The vehicle can further include a controller 300 and a motor 400, the controller 300 is used to control the battery 200 to supply power to the motor 400, for example, to meet the working power demand of the vehicle during starting, navigation, and driving. In some embodiments of the present application, the battery 200 can not only be used as an operating power supply of the vehicle, but also be used as a driving power supply of the vehicle, to replace or partially replace fuel or natural gas to provide driving power for the vehicle.

[0079] Please refer to FIG. 2, which is an exploded view of a battery 200 according to some embodiments of the present application. The battery 200 includes a battery box 100 and a plurality of battery cells 101, which are accommodated in the battery box 100. The battery box 100 is configured to provide a mounting space for the battery cells 101, and can have various structures. In some embodiments, the battery box 100 can include a box body 2, which includes a first box 1001 and a second box 1002. The first box 1001 and the second box 1002 are coupled to each other to define a receiving cavity 2a for accommodating the battery cells 101. The second box 1002 can be a hollow structure with one end open, and the first box 1001 can be a plate-shaped structure. The first box 1001 is coupled to the open end of the second box 1002 to define the receiving cavity 2a together with the second box 1002. Alternatively, the first box 1001 and the second box 1002 can both be hollow structures with one side open (as shown in FIG. 2), and the open end of the first box 1001 is coupled to the open end of the second box 1002. Of course, the battery box 100 formed by the first box 1001 and the second box 1002 can have various shapes, such as a cylinder or a cuboid.

[0080] In the battery 200, the plurality of battery cells 101 can be connected in series, in parallel, or in a mixed manner. The mixed manner means that the plurality of battery cells 101 are connected in series and in parallel. The plurality of battery cells 101 can be directly connected in series, in parallel, or in a mixed manner, and then the plurality of battery cells 101 are accommodated in the battery box 100. Alternatively, the plurality of battery cells 101 can be connected in series, in parallel, or in a mixed manner to form a battery module, and then a plurality of battery modules are connected in series, in parallel, or in a mixed manner to form a whole, which is accommodated in the battery box 100. The battery 200 can further include other structures, for example, the battery 200 can further include a busbar for electrically connecting the plurality of battery cells 101.

[0081] Please refer to FIG. 3 and FIG. 4. In the embodiments of the present application, the mounting structure 1 can be used to fix and mount related structures. For example, the mounting structure 1 can be used in the battery 200 to support and fix the battery 200.

[0082] The mounting structure 1 comprises a mounting beam 11, the mounting beam 11 can provide a proper number and proper arrangement of mounting points, the mounting beam 11 is internally defined with a cavity 11a, at least a part of the mounting beam 11 can be substantially in a hollow structure, so as to realize sufficient structural strength and stability of the mounting beam 11 by using a small amount of material, and facilitate to improve the use reliability of the mounting structure 1; wherein the mounting beam 11 is formed with a first communication port 11d which communicates between the inside and the outside of the cavity 11a, and the wall surface of the cavity 11a of the mounting beam 11 is provided with an electrophoretic layer, so that in the electrophoresis process, the electrophoretic liquid can flow into or flow out of the cavity 11a through the first communication port 11d, so as to form an electrophoretic layer on the wall surface of the cavity 11a, which is beneficial to improve the corrosion resistance of the wall surface of the cavity 11a, thereby improving the use reliability of the mounting beam 11. Of course, the outer surface of the mounting beam 11 (for example, the surface of the mounting beam 11 facing away from the cavity 11a) can not be provided with an electrophoretic layer, or the outer surface of the mounting beam 11 is also provided with an electrophoretic layer.

[0083] The mounting structure 1 further comprises a shielding piece 12, the shielding piece 12 is connected with the mounting beam 11, and the shielding piece 12 shields a part of the first communication port 11d, and the surface of the shielding piece 12 is also provided with an electrophoretic layer, and the wall surface of the cavity 11a and the shielding piece 12 form a second communication port 12a which communicates with the cavity 11a, and / or the shielding piece 12 is formed with the second communication port 12a which communicates with the cavity 11a, and the second communication port 12a is opposite to and communicates with the first communication port 11d; exemplarily, the electrophoretic layer on the surface of the shielding piece 12 and the electrophoretic layer on the wall surface of the cavity 11a can be formed in the same electrophoresis process, so that before electrophoresis, the shielding piece 12 is arranged at the first communication port 11d to shield a part of the first communication port 11d, and during electrophoresis, the electrophoretic liquid can flow into or flow out of the cavity 11a through the second communication port 12a, so as to realize smooth electrophoresis of the wall surface of the cavity 11a. The mounting structure 1 further comprises a sealing piece 13, the sealing piece 13 seals the second communication port 12a, so that the shielding piece 12 and the sealing piece 13 can realize the sealing arrangement at the first communication port 11d, so as to close the cavity 11a, and when the mounting structure 1 is transported or used, foreign matters or water in the outside environment are not easy to enter the cavity 11a through the first communication port 11d to cause corrosion problems, so as to further improve the use reliability of the mounting beam 1.

[0084] It can be understood that the second communication port 12a can be one or more; when the second communication port 12a is multiple, each second communication port 12a corresponds to a sealing piece 13 respectively, or one sealing piece 13 seals all the second communication ports 12a, but is not limited thereto. The relative position of the shielding piece 12 and the mounting beam 11 is not specifically limited in the embodiments of the present application.

[0085] For example, taking that the first communication port 11d is formed at the length end of the mounting beam 11 as an example:

[0086] The shielding member 12 can abut against the end surface in the length direction of the mounting beam 11 (for example, the X direction in FIG. 3), and at least a portion of the shielding member 12 can be located outside the cavity 11a. In a cross section of the mounting beam 11 perpendicular to the length direction of the mounting beam 11, a portion of the outer edge of the shielding member 12 in the projection can be located within the outer contour of the projection of the wall surface of the cavity 11a, and another portion of the outer edge of the shielding member 12 in the projection can be located outside the outer contour of the projection of the wall surface of the cavity 11a. The cross section of the mounting beam 11 can include the following schemes: 1. The second communication port 12a is formed between the wall surface of the cavity 11a and the shielding member 12, and in the cross section of the mounting beam 11, a portion of the outer edge of the shielding member 12 in the projection can be located within the outer contour of the projection of the wall surface of the cavity 11a, and another portion of the outer edge of the shielding member 12 in the projection can be located outside the outer contour of the projection of the wall surface of the cavity 11a; 2. The second communication port 12a is formed on the shielding member 12, and the second communication port 12a can be opposite to the first communication port 11d, and in the cross section of the mounting beam 11, the entire outer edge of the shielding member 12 in the projection can be located outside the outer contour of the projection of the wall surface of the cavity 11a; and 3. The second communication port 12a is formed on the shielding member 12, and the second communication port 12a is also formed between the wall surface of the cavity 11a and the shielding member 12.

[0087] Alternatively, the shielding member 12 is arranged in the cavity 11a and adjacent to the first communication port 11d. In the cross section of the mounting beam 11, the projection of the shielding member 12 can be located within the outer contour of the projection of the wall surface of the cavity 11a, and can include the following schemes: 1. The second communication port 12a is formed between the wall surface of the cavity 11a and the shielding member 12, and at least a portion of the outer peripheral wall of the shielding member 12 is spaced apart from the wall surface of the cavity 11a to define the second communication port 12a; 2. The second communication port 12a is formed on the shielding member 12, and the second communication port 12a can be opposite to the first communication port 11d, and the outer peripheral wall of the shielding member 12 can abut against the wall surface of the cavity 11a; and 3. The second communication port 12a is formed on the shielding member 12, and the second communication port 12a is also formed between the wall surface of the cavity 11a and the shielding member 12.

[0088] Of course, the first communication port 11d can also be formed on the side wall of the mounting beam 11, such as the first communication port 11d being formed on the side wall of the mounting beam 11 in the width direction (for example, the Y direction in FIG. 3) or the first communication port 11d being formed on the side wall of the mounting beam 11 in the thickness direction (for example, the Z direction in FIG. 3), which will not be described herein.

[0089] It can be seen that, in the technical scheme, for the cavity 11a, the shielding piece 12 cooperates with the sealing piece 13 to improve the sealing performance of the cavity 11a at the first communication port 11d, and the setting of the electrophoresis layer facilitates the double improvement of the corrosion resistance of the wall surface of the cavity 11a, thereby improving the use reliability of the mounting structure 1. Moreover, the setting of the shielding piece 12 and the sealing piece 13 does not affect the electrophoresis process of the cavity 11a, and is conducive to reducing the size of the area that needs to be sealed by the sealing piece 13, facilitating the reliable sealing of the second communication port 12a by the sealing piece 13, and being conducive to improving the sealing effect of the shielding piece 12 and the sealing piece 13 at the first communication port 11d.

[0090] In some technologies, in order to improve the use reliability of the mounting beam, a sheet metal piece is usually arranged at the first communication port of the mounting beam to directly block the first communication port, so as to block foreign matters from entering the cavity, thereby improving the corrosion resistance. The sheet metal piece is arc-welded to the mounting beam. If the sheet metal piece is welded and fixed to the mounting beam before electrophoresis, the sheet metal piece blocking the first communication port causes the electrophoretic fluid to be unable to flow into the cavity, so that normal electrophoresis of the wall surface of the cavity is difficult to be achieved. If no electrophoretic layer is arranged or the quality of the electrophoretic layer is poor, the corrosion resistance and reliability of the mounting beam are affected. If the mounting beam is first subjected to electrophoresis and then the sheet metal piece is welded to the mounting beam, the electrophoretic layer affects the welding quality between the sheet metal piece and the mounting beam, so that reliable welding between the sheet metal piece and the mounting beam is difficult to be achieved, and the sheet metal piece is prone to fail to reliably seal the first communication port, thereby reducing the corrosion resistance and reliability of the mounting beam.

[0091] The above setting of the present application can solve the contradiction between the “sheet metal piece and the mounting beam are welded and connected” and the “mounting beam electrophoresis” in the related art, and improve the processing convenience. For example, before the mounting beam 11 is subjected to electrophoresis, the shielding piece 12 is installed on the mounting beam 11, so that the electrophoretic fluid can normally flow into or flow out of the cavity 11a through the second communication port 12a, and then the sealing piece 13 is sealed at the second communication port 12a to close the cavity 11a.

[0092] It can be understood that the sealing piece 13 can seal the second communication port 12a after electrophoresis, or the sealing piece 13 has a first state and a second state, the volume of the sealing piece 13 in the first state is smaller than that in the second state, in the second state, the sealing piece 13 can seal the second communication port 12a, and in the first state, the sealing piece 13 cannot seal the communication. Therefore, before electrophoresis, the sealing piece 13 in the first state can be installed at the second communication port 12a, and in the subsequent process after the electrophoretic fluid flows out of the cavity 11a, the sealing piece 13 is triggered to switch to the second state to seal the second communication port 12a.

[0093] In addition, the sealing manner of the sealing member 13 to the second communication port 12a is not limited in the present application, for example, the sealing member 13 is adhered to the peripheral wall of the second communication port 12a, or the sealing member 13 is adhered to the shielding member 12 and blocks the second communication port 12a, or the sealing member 13 is interference-fitted to the second communication port 12a, and the like.

[0094] Please refer to FIGS. 6 and 7, in some embodiments, the outer peripheral side of the shielding member 12 is provided with an elastic buckle 14, the hanging beam 11 is formed with a buckle hole 11e, the elastic buckle 14 is inserted into the buckle hole 11e, and the elastic buckle 14 abuts against the surface of the hanging beam 11, so as to realize the buckle connection between the shielding member 12 and the hanging beam 11, facilitate the assembly of the shielding member 12 and the hanging beam 11, and be beneficial to improving the assembly efficiency of the hanging structure 1. Meanwhile, this connection manner will not affect the electrophoresis process of the hanging beam 11 and the shielding member 12.

[0095] Exemplarily, as shown in FIGS. 4, 6 and 7, the hanging structure 1 is configured in that the elastic buckle 14 is adapted to be inserted into the buckle hole 11e from the inner side of the buckle hole 11e to the outer side of the buckle hole 11e, and the elastic buckle 14 abuts against the outer surface of the hanging beam 11. Of course, in other examples, the hanging structure 1 can also be configured in that the elastic buckle 14 is adapted to be inserted into the buckle hole 11e from the outer side of the buckle hole 11e to the inner side of the buckle hole 11e, and the elastic buckle 14 abuts against the inner surface (i.e. the wall surface of the cavity 11a) of the hanging beam 11. In the description of the present application, the outer side of the buckle hole 11e can be understood as the side of the buckle hole 11e facing away from the cavity 11a, and the inner side of the buckle hole 11e can be understood as the side of the buckle hole 11e facing the cavity 11a.

[0096] Of course, in other embodiments of the present application, the connection manner between the shielding member 12 and the hanging beam 11 can also be adhesive fixing, threaded connection, etc., which will not affect the electrophoresis process.

[0097] Please refer to FIGS. 4, 6 and 7, in some embodiments, the shielding member 12 is located in the cavity 11a, the elastic buckle 14 extends out of the cavity 11a from the cavity 11a through the buckle hole 11e, and the elastic buckle 14 abuts against the outer surface of the hanging beam 11.

[0098] In the above technical solution, by arranging the shielding member 12 in the cavity 11a, and making the elastic buckle 14 extend out of the cavity 11a from the cavity 11a through the buckle hole 11e to abut against the outer surface of the hanging beam 11, the hanging beam 11 can play a certain protection role on the shielding member 12, for example, the collision on the shielding member 12 can be reduced, and the external force on the elastic buckle 14 can be reduced, and meanwhile, in combination with the above arrangement of the elastic buckle 14, the connection between the shielding member 12 and the elastic buckle 14 can be facilitated to be simplified on the premise that the shielding member 12 is reliably installed on the hanging beam 11 through the elastic buckle 14.

[0099] Please refer to FIG. 4, FIG. 6 and FIG. 7, in some embodiments, the shielding piece 12 is located in the cavity 11a, the elastic buckle 14 extends out of the cavity 11a from the card hole 11e in the cavity 11a, and the elastic buckle 14 abuts against the outer surface of the mounting beam 11; the first communication port 11d is formed at the end of the mounting beam 11 in the length direction, and the card hole 11e is formed on the circumferential cavity wall of the cavity 11a and is adjacent to the edge of the first communication port 11d.

[0100] For example, the circumferential cavity wall of the cavity 11a includes two side walls of the mounting beam 11 in the width direction and two side walls of the mounting beam 11 in the thickness direction.

[0101] It can be seen that in the above technical solution, the distance between the card hole 11e and the edge of the first communication port 11d is short, or in other words, the distance between the card hole 11e and the length end face of the mounting beam 11 where the first communication port 11d is formed is short, which is beneficial to improve the interference, extrusion, etc. between the shielding piece 12 and the mounting beam 11 during the process of the elastic buckle 14 extending from the cavity 11a to the card hole 11e, and facilitates the smooth installation of the shielding piece 12 on the mounting beam 11 through the elastic buckle 14; at the same time, the outer contour of the shielding piece 12 can be appropriately increased to some extent, which is beneficial to reduce the distance between the outer peripheral wall of the shielding piece 12 and the wall of the cavity 11a after the shielding piece 12 is installed, facilitate the sealing between the shielding piece 12 and the wall of the cavity 11a, or facilitate the reliable sealing of the sealing piece 13 between the outer peripheral wall of the shielding piece 12 and the wall of the cavity 11a.

[0102] Please refer to FIG. 6 and FIG. 8, in some embodiments, the elastic buckle 14 is a plurality of, the plurality of elastic buckles 14 are located on the same side of the shielding piece 12, and the side of the shielding piece 12 away from the plurality of elastic buckles 14 is spaced apart from the wall of the cavity 11a to form at least part of the second communication port 12a.

[0103] In the above technical solution, by providing a plurality of elastic buckles 14, by arranging the plurality of elastic buckles 14 on the same side of the shielding piece 12, and spacing the side of the shielding piece 12 away from the plurality of elastic buckles 14 from the wall of the cavity 11a, the shielding piece 12 can be smoothly installed in the cavity 11a along the set direction inclined to the central axis of the card hole 11e, which is beneficial to improve the assembly interference between the elastic buckle 14 and the side of the shielding piece 12 away from the elastic buckle 14 during the installation of the shielding piece 12, and improve the installation convenience of the shielding piece 12.

[0104] Exemplarily, the outer contour of the shielding piece 12 is substantially polygonal, the plurality of elastic buckles 14 are arranged corresponding to the same side of the polygon, the side of the polygon opposite to the plurality of elastic buckles 14 is spaced apart from the wall surface of the cavity 11a, and the remaining sides of the polygon, except the side on which the elastic buckles 14 are arranged and the side opposite to the plurality of elastic buckles 14, can be arranged spaced apart from the wall surface of the cavity 11a or abut against the wall surface of the cavity 11a. In combination with FIGS. 6 and 8, taking the outer contour of the shielding piece 12 as a substantially quadrilateral for example, the four sides are a first side, a second side, a third side and a fourth side connected in sequence, the plurality of elastic buckles 14 are arranged on the first side, the third side is spaced apart from the wall surface of the cavity 11a, and the second side and the fourth side can be arranged as follows: 1. The second side and the fourth side abut against the wall surface of the cavity 11a respectively, and at this time, the second communication port 12a is formed between the third side and the wall surface of the cavity 11a; 2. The second side and the fourth side are spaced apart from the wall surface of the cavity 11a respectively (as shown in FIG. 6), and at this time, the second side, the third side and the fourth side form at least part of the second communication port 12a between them and the wall surface of the cavity 11a; 3. One of the second side and the fourth side abuts against the wall surface of the cavity 11a, and the other is spaced apart from the wall surface of the cavity 11a.

[0105] Of course, in other embodiments of the present application, the elastic buckle 14 can also be one.

[0106] Please refer to FIG. 6. In some embodiments, the outer peripheral wall of the shielding piece 12, except the part connected with the elastic buckle 14, is arranged spaced apart from the wall surface of the cavity 11a to form the second communication port 12a between the wall surface of the cavity 11a and the shielding piece 12, and then the part of the outer peripheral wall of the shielding piece 12 connected with the elastic buckle 14 can abut against the wall surface of the cavity 11a, and the elastic buckle 14 abuts against the outer surface of the mounting beam 11, so as to realize that the shielding piece 12 and the elastic buckle 14 are clamped on the two sides of the thickness of the cavity wall of the cavity 11a respectively, and realize reliable installation of the shielding piece 12.

[0107] In the above technical solution, the part of the outer peripheral wall of the shielding piece 12, except the part connected with the elastic buckle 14, is arranged spaced apart from the wall surface of the cavity 11a, so as to realize reliable and stable installation of the shielding piece 12, improve the bearing capacity of the shielding piece 12 against the impact of the electrophoretic liquid, appropriately increase the area of the first communication port 11d of the second communication port 12a, and improve the flow area of the electrophoretic liquid when entering and leaving the cavity 11a, which is beneficial to improving the electrophoretic efficiency.

[0108] Please refer to FIG. 6. In some embodiments, the width d of the second communication port 12a on the outer peripheral side of the shielding piece 12 is constant along the direction around the shielding piece 12, so that the width d of the second communication port 12a is a constant value in the direction around the shielding piece 12. It can be seen that the spacing between the part of the outer peripheral wall of the shielding piece 12, except the part connected with the elastic buckle 14, and the wall surface of the cavity 11a is equal.

[0109] In the technical solution, the width d of the second communication port 12a on the outer circumferential side of the shielding member 12 is constant in the direction around the shielding member 12, so that the width of the sealing member 13 sealing the second communication port 12a can be a constant value, which is beneficial to simplify the structure of the sealing member 13. Especially when the sealing member 13 is made of foamed material, the foaming ratio of the foamed material is usually constant, and the above setting is beneficial to seal the second communication port 12a by the foamed material with the same thickness, thereby facilitating the design of the sealing member 13.

[0110] Exemplarily, the width d of the second communication port 12a on the outer circumferential side of the shielding member 12 can be 3 mm, but is not limited to, and the width d can also be 2 mm, 4 mm, 5 mm, etc.

[0111] Please refer to FIGS. 6 and 8, in some embodiments, the elastic buckle 14 includes a main body part 141 and an elastic arm part 142, the main body part 141 is connected with the shielding member 12, and the main body part 141 is arranged in the clamping hole 11e, the elastic arm part 142 is cantilevered on the end of the main body part 141 away from the shielding member 12, the free end of the elastic arm part 142 and the main body part 141 define an opening 14a with adjustable size, and the elastic arm part 142 abuts against the surface of the mounting beam 11.

[0112] It can be seen that the elastic arm part 142 deforms under the action of external force, so that the distance between the free end of the elastic arm part 142 and the main body part 141 changes, thereby adjusting the size of the opening 14a; when the shielding member 12 is installed, the elastic buckle 14 is pressed by the hole wall of the clamping hole 11e during the arrangement in the clamping hole 11e, the elastic arm part 142 deforms towards the main body part 141, so that the size of the opening 14a decreases, and the elastic arm part 142 always has a tendency to restore to the initial state as the elastic buckle 14 is gradually arranged, until at least part of the elastic arm part 142 extends out of the clamping hole 11e in the radial direction of the clamping hole 11e, so that the elastic arm part 142 can abut against the part of the mounting beam 11 around the clamping hole 11e, thereby realizing the reliable installation of the shielding member 12.

[0113] In the technical solution, the width d of the second communication port 12a on the outer circumferential side of the shielding member 12 is constant in the direction around the shielding member 12, so that the width of the sealing member 13 sealing the second communication port 12a can be a constant value, which is beneficial to simplify the structure of the sealing member 13. Especially when the sealing member 13 is made of foamed material, the foaming ratio of the foamed material is usually constant, and the above setting is beneficial to seal the second communication port 12a by the foamed material with the same thickness, thereby facilitating the design of the sealing member 13.

[0114] Exemplarily, the first communication port 11d is formed at the end of the mounting beam 11 in the length direction, the clamping hole 11e is formed on the side wall of the cavity 11a and adjacent to the edge of the first communication port 11d, the shielding piece 12 is located in the cavity 11a, the elastic buckle 14 extends out of the cavity 11a from the cavity 11a through the clamping hole 11e and abuts against the outer surface of the mounting beam 11, then the main body part 141 extends out of the cavity 11a from the cavity 11a through the clamping hole 11e until at least part of the elastic arm part 142 extends out of the clamping hole 11e in the radial direction of the clamping hole 11e to abut against the part of the outer surface of the mounting beam 11 around the clamping hole 11e, so that the elastic buckle 14 is clamped on the outer surface of the mounting beam 11, and the shielding piece 12 is installed on the side wall of the cavity 11a through the elastic buckle 14.

[0115] For example, as shown in FIGS. 6, 8-10, the side surface of the elastic arm part 142 away from the main body part 141 is formed with a groove 142a recessed towards the main body part 141, and the groove 142a penetrates the free end of the elastic arm part 142, so that the side of the groove 142a away from the main body part 141 is open, and the side of the groove 142a away from the cantilever end of the elastic arm part 142 is also open, so that the elastic arm part 142 abuts against the surface of the mounting beam 11 and the hole wall of the clamping hole 11e respectively.

[0116] It can be seen that after the elastic buckle 14 is clamped on the clamping hole 11e to achieve the installation of the shielding piece 12, part of the elastic arm part 142 extends out of the clamping hole 11e and abuts against the surface of the mounting beam 11, and another part of the elastic arm part 142 is located in the clamping hole 11e and abuts against the hole wall of the clamping hole 11e.

[0117] In the above technical solution, the groove 142a is formed on the side surface of the elastic arm part 142 away from the main body part 141, so that the elastic arm part 142 abuts against the surface of the mounting beam 11 and the hole wall of the clamping hole 11e respectively, so that under the premise of achieving the smooth and reliable installation of the shielding piece 12, part of the elastic arm part 142 is matched in the clamping hole 11e and abuts against the hole wall of the clamping hole 11e after the complete installation of the shielding piece 12, so that when the shielding piece 12 needs to be disassembled, the elastic arm part 142 can be directly pressed until the elastic arm part 142 is disengaged from the surface of the mounting beam 11, without the need to align the free end of the elastic arm part 142 with the clamping hole 11e, which facilitates the disassembly of the shielding piece 12.

[0118] Exemplarily, as shown in FIGS. 6, 8 and 12, taking the abutment of the elastic buckle 14 with the outer surface of the mounting beam 11 as an example, the groove 142a also penetrates through both ends of the elastic arm portion 142 in the circumferential direction of the clamping hole 11e, at this time, the groove 142a can have a first groove wall 142b and a second groove wall 142c, the first groove wall 142b can be parallel to the part of the outer surface of the mounting beam 11 surrounding the clamping hole 11e, and the second groove wall 142c is connected to the inner side edge of the first groove wall 142b; in other words, the elastic arm portion 142 can include a first portion 1421 and a second portion 1422, one end of the first portion 1421 is connected to the main body portion 141, a part of the end face of the other end of the first portion 1421 forms the first groove wall 142b, and the other part is connected to the second portion 1422, the end of the second portion 1422 away from the first portion 1421 forms the free end of the elastic arm portion 142, and the side surface of the second portion 1422 away from the main body portion 141 forms the second groove wall 142c. When the elastic buckle 14 is clamped on the mounting beam 11, the first portion 1421 is located outside the clamping hole 11e, and the first groove wall 142b abuts against the outer surface of the mounting beam 11, and the second portion 1422 is located inside the clamping hole 11e, and the second groove wall 142c abuts against the hole wall of the clamping hole 11e.

[0119] Please refer to FIGS. 8, 10-12, in some embodiments, the shielding piece 12 includes a plate body portion 121 and a connecting portion 122, the connecting portion 122 is provided on the plate body portion 121, and the connecting portion 122 participates in defining the second communication opening 12a, and the sealing piece 13 is connected to the side of the connecting portion 122 away from the plate body portion 121, and the thickness of the connecting portion 122 is greater than the thickness of the plate body portion 121 in the thickness direction of the plate body portion 121.

[0120] In the above technical solution, by setting the shielding piece 12 to include the plate body portion 121 and the connecting portion 122, the shielding piece 12 can be roughly in a plate-shaped structure, which facilitates the reliable shielding of part of the first communication opening 11d, and the connecting portion 122 separates the plate body portion 121 from the sealing piece 13, and the thickness of the connecting portion 122 is greater than the thickness of the plate body portion 121, which facilitates providing a larger setting area for the sealing piece 13, improving the connection area of the sealing piece 13 and the shielding piece 12, and realizing the reliable connection of the sealing piece 13 and the shielding piece 12.

[0121] It can be understood that the thickness direction of the plate body 121 is parallel to the axial direction of the first communication port 11d, or the thickness direction of the plate body 121 is arranged at an angle with the axial direction of the first communication port 11d. When the first communication port 11d is formed at one end in the length direction of the mounting beam 11, the axial direction of the first communication port 11d can be parallel to the length direction of the mounting beam 11, or the axial direction of the first communication port 11d can be arranged at an angle with the length direction of the mounting beam 11; for example, in combination with FIG. 3 and FIG. 5, two ends in the length direction of the mounting beam 11 are respectively provided with the first communication port 11d, the end surface of one end in the length direction of the mounting beam 11 is perpendicular to the length direction, and the axial direction of the first communication port 11d corresponding to the one end is parallel to the length direction. The end surface of the other end in the length direction of the mounting beam 11 is arranged at an acute angle with the length direction, and the axial direction of the first communication port 11d corresponding to the other end is arranged at an angle with the length direction.

[0122] For example, in the thickness direction of the plate body 121, the connecting portion 122 can be located on one side of the thickness of the plate body 121, or part of the connecting portion 122 is located on one side of the thickness of the plate body 121 and the other part is located on the other side of the thickness of the plate body 121.

[0123] In addition, when the second communication port 12a is formed between the wall surface of the cavity 11a and the shielding piece 12, the connecting portion 122 corresponding to the second communication port 12a is arranged on the outer peripheral side of the plate body 121; when the second communication port 12a is formed on the shielding piece 12, the connecting portion 122 corresponding to the second communication port 12a is annular, and the plate body 121 is connected to the outer peripheral side of the connecting portion 122.

[0124] Please refer to FIG. 6, FIG. 8 and FIG. 10, in some embodiments, one of the connecting portions 122 is the first connecting portion 1221, the first connecting portion 1221 is arranged on the outer peripheral side of the plate body 121, and the side surface of the first connecting portion 1221 away from the plate body 121 defines the second communication port 12a between the wall surface of the cavity 11a and the shielding piece 12; and / or, one of the connecting portions 122 is the second connecting portion 1222, the second connecting portion 1222 is annular, the plate body 121 is arranged on the outer peripheral side of the second connecting portion 1222, and the side surface of the second connecting portion 1222 away from the plate body 121 defines the second communication port 12a formed on the shielding piece 12.

[0125] In the technical solution, the side surface of the first connecting part 1221 away from the plate body part 121 and the wall surface of the cavity 11a define the second communication port 12a, and the side surface of the second connecting part 1222 away from the plate body part 121 defines the second communication port 12a, so that the reliable installation of the sealing member 13 can be facilitated regardless of the position of the second communication port 12a.

[0126] For example, when the shielding member 12 is installed on the mounting beam 11 through the elastic buckle 14, the elastic buckle 14 can be arranged on the first connecting part 1221; for example, the side surface of the first connecting part 1221 away from the plate body part 121, except for the part connected to the elastic buckle 14, is spaced from the wall surface of the cavity 11a to form the second communication port 12a.

[0127] It can be understood that in the embodiments of the present application, the number, shape and arrangement of the second connecting part 1222 can be set according to the shape of the cavity 11a and actual needs. For example, as shown in FIG. 4 and FIG. 10, the second connecting part 1222 is three, two of which are parallel to the thickness direction of the mounting beam 11, and the remaining one is parallel to the width direction of the mounting beam 11.

[0128] Please refer to FIG. 7, in some embodiments, the mounting beam 11 is a one-piece, the cavity 11a includes a first cavity part 11b and a second cavity part 11c arranged in sequence along the width direction of the mounting beam 11, and in the thickness direction of the mounting beam 11, the thickness t1 of the first cavity part 11b is greater than the thickness t2 of the second cavity part 11c, and the side of the first cavity part 11b away from the second cavity part 11c is open.

[0129] In the technical solution, the mounting beam 11 is a one-piece, which facilitates the processing of the mounting beam 11, and the thickness of the first cavity part 11b is greater than the thickness of the second cavity part 11c, so that the cavity wall at the connection position of the first cavity part 11b and the second cavity part 11c is not flat, which can strengthen the corresponding cavity wall, thereby improving the structural strength and stability of the mounting beam 11. In addition, when the mounting structure 1 is used in the battery box 100, the mounting beam 11 is connected to the box body 2, and the open side of the first cavity part 11b is arranged to face the box body 2. Since the thickness of the first cavity part 11b is greater than the thickness of the second cavity part 11c, the connection reliability of the mounting beam 11 and the box body 2 is improved.

[0130] For example, the mounting beam 11 is a one-piece roll-pressed part.

[0131] Referring to FIGS. 7 and 8, in some embodiments, the first communication port 11d is formed at the end of the mounting beam 11 in the length direction, the shielding member 12 includes a first shielding portion 123 arranged at the first cavity portion 11b and a second shielding portion 124 arranged at the second cavity portion 11c, and the width t3 of the first shielding portion 123 is greater than the width t4 of the second shielding portion 124 in the thickness direction of the mounting beam 11; the first shielding portion 123 and the second shielding portion 124 are respectively provided with the second communication port 12a, the second communication port 12a on the first shielding portion 123 is elongated in the thickness direction of the mounting beam 11, and the second communication port 12a on the second shielding portion 124 is elongated in the width direction of the mounting beam 11.

[0132] It can be seen that the second communication port 12a is arranged on the first shielding portion 123 and the second shielding portion 124, which is beneficial to improve the flow area of the electrophoretic fluid when entering and exiting the cavity 11a, realizes fast entering and exiting of the electrophoretic fluid, and is convenient to improve the electrophoretic efficiency; moreover, the design of the second communication port 12a on the first shielding portion 123 and the second shielding portion 124 matches the shape of the first shielding portion 123 and the second shielding portion 124 itself, so as to give consideration to the rapid flow of the electrophoretic fluid and the weakening of the shielding member 12 due to the arrangement of the second communication port 12a.

[0133] It can be understood that the number and arrangement of the second communication port 12a on the first shielding portion 123 and the number and arrangement of the second communication port 12a on the second shielding portion 124 can be specifically set according to actual needs. Exemplarily, the width of the second communication port 12a on the first shielding portion 123 and the second shielding portion 124 can be 5 mm, but is not limited thereto.

[0134] In some embodiments, the shielding member 12 is a resin member or a metal member, and the sealing member 13 is a foamed material member. Thus, the shielding member 12 has good structural strength, and the sealing member 13 can reliably seal the second communication port 12a; moreover, when the foamed material member is configured to be foamed by a high-temperature method, the foaming can be realized simultaneously by using the baking in the electrophoresis process, the processing procedure is simplified, and the processing efficiency is improved. The baking temperature and the baking time in the baking process can be set according to actual needs, the baking temperature can be 200°C, and the baking time is 20 min.

[0135] In combination with FIGS. 6, 8-10, the sealing member 13 is in a state before foaming, the shielding member 12 and the sealing member 13 before foaming can constitute a laminated member, the laminated member is installed on the mounting beam 11 to perform electrophoresis, after the electrophoretic fluid is discharged from the cavity 11a, baking is needed to dry the electrophoretic fluid to form an electrophoretic layer, and in the baking process, the sealing member 13 is foamed and expanded to seal the second communication port 12a; it can be seen that the foaming of the sealing member 13 is realized simultaneously with the electrophoresis by using the baking process in the electrophoresis process.

[0136] It can be understood that the foaming ratio of the foamed material piece can be set according to actual needs, for example, the foaming ratio is 9 times, and the foaming ratio can be understood as the ratio of the volume after foaming to the volume before foaming.

[0137] Please refer to FIGS. 10-13, in some embodiments, the opposite sides of the shielding piece 12 in the axial direction of the second communication port 12a are respectively provided with the support pieces 15, the support pieces 15 are arranged on the outer circumferential side of the shielding piece 12, and the support pieces 15 abut against the wall surface of the cavity 11a.

[0138] Exemplarily, the shielding piece 12 is arranged in the cavity 11a, and the electrophoretic fluid enters or exits the cavity 11a along the axial direction of the second communication port 12a or along a direction inclined to the axial direction of the second communication port 12a, so that the impact force of the electrophoretic fluid on the shielding piece 12 is along the axial direction of the second communication port 12a or has a component along the axial direction of the second communication port 12a, and then the two sides of the shielding piece 12 in the axial direction of the second communication port 12a are respectively provided with the support pieces 15, and the support pieces 15 abut against the wall surface of the cavity 11a, so as to improve the bearing capacity of the shielding piece 12 to the impact of the electrophoretic fluid.

[0139] In the above technical solution, by arranging the support pieces 15 on the opposite sides of the shielding piece 12 respectively, and abutting the support pieces 15 against the wall surface of the cavity 11a, the installation stability of the shielding piece 12 is improved, the bearing capacity of the shielding piece 12 to the impact of the electrophoretic fluid is improved, the risk of the shielding piece 12 being knocked down by the impact of the electrophoretic fluid is reduced, and the stress at the connection position of the shielding piece 12 and the mounting beam 11 is reduced, and the installation reliability is improved.

[0140] For example, the support pieces 15 and the shielding piece 12 are an integral piece; of course, the support pieces 15 and the shielding piece 12 can also be fixed by assembly means.

[0141] In combination with FIGS. 10-12, the shielding piece 12 includes a plate body part 121 and a first connecting part 1221, the first connecting part 1221 is arranged on the outer circumferential side of the plate body part 121, and in the thickness direction of the plate body part 121, the opposite sides of the first connecting part 1221 are respectively provided with the support pieces 15.

[0142] Please refer to FIGS. 10-13, in some embodiments, the support pieces 15 are arranged at the connection position of the shielding piece 12 and the mounting beam 11. Exemplarily, the shielding piece 12 is clamped on the mounting beam 11 by the elastic buckle 14, and the support pieces 15 are arranged adjacent to the elastic buckle 14.

[0143] In the technical solution, the support member 15 is arranged at the connecting position of the shielding member 12 and the mounting beam 11, which is beneficial to further reduce the stress at the connecting position of the shielding member 12 and the mounting beam 11. For example, the shielding member 12 is clamped on the mounting beam 11 by the elastic buckle 14, and the arrangement of the support member 15 is beneficial to improve the stress of the elastic buckle 14, thereby improving the installation reliability of the shielding member 12.

[0144] For example, the elastic buckle 14 is a plurality of elastic buckles, and each elastic buckle 14 corresponds to at least two support members 15, and the at least two support members 15 are arranged on both sides of the thickness of the shielding member 12.

[0145] For example, as shown in FIGS. 10-14, the support member 15 is formed in a triangular plate structure, which is beneficial to improve the support stability of the support member 15 on the shielding member 12. Of course, the shape of the support member 15 is not limited thereto.

[0146] In a second aspect, the embodiments of the present application provide a battery box 100, which comprises a box body 2 and the mounting structure 1 described above. The box body 2 defines a containing cavity 2a for containing battery monomers 101, and the mounting structure 1 is arranged outside the box body 2.

[0147] In the technical solution, the battery box 100 adopts the mounting structure 1 described above, and the mounting structure 1 has good corrosion resistance and reliability, thereby improving the use reliability of the battery box 100. In addition, since the mounting structure 1 is arranged outside the box body 2, the mounting structure 1 does not occupy the space of the containing cavity 2a, and the energy density of the battery 200 is improved under the premise of reliable mounting of the battery box 100.

[0148] For example, the box body 2 can comprise a top wall, a bottom wall, and a plurality of side walls connected in sequence. Each side wall is connected to the top wall and the bottom wall, and the plurality of side walls comprise two first side walls 21 arranged opposite to each other. Each first side wall 21 is provided with the mounting structure 1 on the side away from the other side wall. The side wall can be a plate member or a profile member.

[0149] In a third aspect, the embodiments of the present application provide a battery 200, which comprises the battery monomer 101 and the battery box 100 described above. The battery monomer 101 is arranged in the containing cavity 2a.

[0150] In the technical solution, the battery 200 adopts the battery box 100 described above, and the battery box 100 has good use reliability, thereby improving the use reliability of the battery 200.

[0151] In a fourth aspect, the embodiments of the present application provide a power utilization device 1000, which comprises the battery 200 described above, and the battery 200 is used to provide electric energy.

[0152] In the technical solution, the power utilization device 1000 adopts the battery 200, and the battery 200 is reliable, so that the use reliability of the power utilization device 1000 is improved.

[0153] It can be understood that when the power utilization device 1000 is a vehicle, if the mounting beam 11 is provided with the first communication port 11d at least at one end in the driving direction of the vehicle (for example, the X direction in FIG. 3), the above-mentioned arrangement of the shielding piece 12 and the sealing piece 13 can also block the air flow into the cavity 11a, improve the problem of noise caused by the air flow into the cavity 11a, and improve the sound quality of the power utilization device 1000.

[0154] Please refer to FIGS. 3-12 again, the battery 200 of the embodiment of the present application is described.

[0155] In the embodiment of the present application, the battery 200 includes a battery monomer 101 and a battery box 100, the battery box 100 includes a box body 2 and a mounting structure 1, the box body 2 defines a containing cavity 2a, the battery monomer 101 is arranged in the containing cavity 2a, the box body 2 includes two first side walls 21 spaced apart along the Y direction and two second side walls 22 spaced apart along the X direction, each first side wall 21 is connected to two second side walls 22, and each first side wall 21 is provided with the mounting structure 1 on the side away from the other first side wall 21.

[0156] The mounting structure 1 includes a mounting beam 11, a shielding piece 12 and a sealing piece 13, the mounting beam 11 is an integral piece, extends along the X direction and defines a cavity 11a, both ends of the mounting beam 11 in the X direction are open to form a first communication port 11d for communicating between the inside and outside of the cavity 11a, the shielding piece 12 and the sealing piece 13 are arranged at each first communication port 11d, the shielding piece 12 shields part of the first communication port 11d, the inner and outer surfaces of the mounting beam 11 and the surface of the shielding piece 12 are respectively provided with an electrophoretic layer, and the shielding piece 12 is located in the cavity 11a.

[0157] One side of the shielding piece 12 in the Z direction is provided with an elastic buckle 14, the cavity wall of the cavity 11a is formed with a buckle hole 11e, the buckle hole 11e is arranged adjacent to the edge of the corresponding first communication port 11d, the elastic buckle 14 extends out of the cavity 11a from the inside of the cavity 11a through the buckle hole 11e and abuts against the outer surface of the mounting beam 11; the part of the outer circumferential wall of the shielding piece 11 where the elastic buckle 14 is connected is outside, and the remaining part is spaced apart from the wall surface of the cavity 11a to form a second communication port 12a, and the second communication port 12a is also formed on the shielding piece 12, the second communication port 12a communicates with the cavity 11a, and the sealing piece 13 is arranged at each second communication port 12a to seal the second communication port 12a.

[0158] The position where the elastic buckle 14 is arranged on the shielding piece 11 is also provided with a support piece 15, and the shielding piece 12 is provided with a support piece 15 on both sides in the X direction, and the support piece 15 abuts against the wall surface of the cavity 11a.

[0159] The shielding piece 12 is a resin piece (for example, PA66, polyamide resin), and the sealing piece 13 is a foaming material piece, and the shielding piece 12 and the sealing piece 13 before foaming can constitute a laminated board, and the laminated board is installed on the mounting beam 11 to perform electrophoresis, and after the electrophoresis liquid is discharged from the cavity 11a, baking is performed to dry the electrophoresis liquid to form an electrophoresis layer, and at the same time in the baking process, the sealing piece 13 is foamed and expanded to seal the corresponding second communication port 12a.

[0160] In the above technical solution, the shielding piece 12 and the sealing piece 13 can reliably seal the first communication port 11d, and external water, impurities and the like are not easy to enter the cavity 11a from the first communication port 11d to cause corrosion, and the use reliability of the mounting structure 1 can be improved; at the same time, when the battery 200 is used in a vehicle, air flow into the cavity 11a can be blocked, the problem that noise is easy to be generated due to air flow into the cavity 11a is improved, and the sound quality of the product is improved.

[0161] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0162] The above is only a preferred embodiment of the present application and is not used to limit the present application, and the present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mounting structure, wherein, The mounting beam has a cavity defined therein, and a first communication opening is formed on the mounting beam to communicate between the inside and outside of the cavity. An electrophoretic layer is provided on at least the wall surface of the cavity of the mounting beam. The shielding member is connected to the mounting beam and shields a portion of the first communication opening. A surface of the shielding member is also provided with an electrophoretic layer. A second communication opening is formed between the wall surface of the cavity and the shielding member and / or on the shielding member to communicate with the cavity. The sealing member seals the second communication opening. The outer periphery of the shielding member is provided with an elastic buckle. A buckle hole is formed on the mounting beam. The elastic buckle is inserted into the buckle hole and abuts against the surface of the mounting beam.

2. The mounting structure according to claim 1, wherein The first communication opening is formed at the end of the mounting beam in the length direction. The buckle hole is formed on the peripheral wall of the cavity and adjacent to the edge of the first communication opening. The shielding member is located in the cavity. The elastic buckle extends out of the cavity through the buckle hole and abuts against the outer surface of the mounting beam.

3. The mounting structure of claim 2, wherein, The elastic buckles are located on the same side of the shielding member. The side of the shielding member away from the elastic buckles is spaced from the wall surface of the cavity to form at least a portion of the second communication opening.

4. The mounting structure of claim 3, wherein, The outer peripheral wall of the shielding member, except for the portion connected to the elastic buckles, is spaced from the wall surface of the cavity to form the second communication opening between the wall surface of the cavity and the shielding member.

5. The mounting structure according to claim 3 or 4, wherein The width of the second communication opening on the outer periphery of the shielding member is constant in the direction around the shielding member.

6. The mounting structure of claim 5, wherein, The elastic buckle includes a main body portion and an elastic arm portion. The main body portion is connected to the shielding member and passes through the buckle hole. The elastic arm portion is cantilevered at the end of the main body portion away from the shielding member. An opening with adjustable size is defined between the free end of the elastic arm portion and the main body portion.

7. The mounting structure according to any one of claims 2-6, wherein, A groove recessed toward the main body portion is formed on the side surface of the elastic arm portion away from the main body portion. The groove penetrates the free end of the elastic arm portion so that the elastic arm portion abuts against the surface of the mounting beam and the hole wall of the buckle hole, respectively. The shielding member includes a plate body portion and a connecting portion. The connecting portion is provided on the plate body portion and participates in defining the second communication opening. The sealing member is connected to the side of the connecting portion away from the plate body portion. In the thickness direction of the plate body portion, the thickness of the connecting portion is greater than the thickness of the plate body portion.

8. The mounting structure according to any one of claims 1-7, wherein, 9. The mounting structure according to claim 8, wherein one of the connecting portions is a first connecting portion. The first connecting portion is provided on the outer periphery of the plate body portion. The side surface of the first connecting portion away from the plate body portion defines the second communication opening with the wall surface of the cavity; and / or one of the connecting portions is a second connecting portion. The second connecting portion is annular. The plate body portion is provided on the outer periphery of the second connecting portion. The side surface of the second connecting portion away from the plate body portion defines the second communication opening. ​ 10. The mounting structure according to any one of claims 1-9, wherein, The mounting beam is a one-piece, the cavity includes a first cavity portion and a second cavity portion arranged in sequence along the width direction of the mounting beam, the thickness of the first cavity portion is greater than the thickness of the second cavity portion in the thickness direction of the mounting beam, and the side of the first cavity portion away from the second cavity portion is open.

11. The mounting structure according to any one of claims 1-10, wherein, The shielding member is a resin member or a metal member, and the sealing member is a foamed material member.

12. The mounting structure according to any one of claims 1-11, wherein, In the axial direction of the second communication port, opposite sides of the shielding member are respectively provided with support members, the support members are arranged on the outer circumferential side of the shielding member, and the support members abut against the wall surface of the cavity.

13. The mounting structure of claim 12, wherein, The support members are arranged at the connection position of the shielding member and the mounting beam.

14. A battery pack, wherein, The battery box includes a box body and a mounting structure according to any one of claims 1-13, the box body defines an accommodation cavity for accommodating a battery monomer, and the mounting structure is arranged outside the box body.

15. A battery, wherein, The battery box includes a battery monomer and a battery box according to claim 14, and the battery monomer is arranged in the accommodation cavity.

16. An electrical device, comprising: The battery includes the battery according to claim 15.

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