Battery and electrical device

Abstract

Battery characterized in that it comprises the following: a battery module to which an output electrode is electrically connected; a housing comprising a first support and a second support which are opposite each other and form a receiving space between them for receiving the battery module, wherein a recess is formed in the first support; and a base for the output electrode comprising a main body part and a mounting part connected to each other, wherein at least a part of the main body part is received in the recess and an end of the output electrode is attached to the main body part; wherein the mounting part is arranged on the side of the first support facing away from the battery module and is connected to the first support.

Description

[0001] The present application refers to the Chinese patent application No. 202420325875.8, filed on February 22, 2024, entitled “Battery and electrical device”, which is fully incorporated into the present application by reference. AREA OF INVENTION

[0002] The present application relates to the technical field of battery design and relates in particular to a battery and an electrical device. STATE OF THE ART

[0003] With the continuous development of traction batteries, their level of integration is steadily increasing. At the same time, the demands for high-voltage and fast charging with high C-rates are also growing. This leads to an increased number of battery cells and connecting leads within the battery housing. Consequently, components such as circuit boards and current collectors require more width. The upper mounting space of the support structure inside the housing is reduced, which significantly affects the arrangement of the output electrode sockets for mounting the positive and negative output electrodes. CONTENT OF THE REGISTRATION

[0004] The objective of the embodiments of this application is to provide a battery and an electrical device to solve the prior art problem in which the upper mounting space of the support structure inside the housing is displaced, thereby impairing the mounting of the base for the output electrodes.

[0005] To achieve the above objective, the following technical solution is used in the embodiments of this application: In a first aspect, the embodiments of this application provide a battery comprising a battery module, a housing, and a base for the output electrodes. The battery module is electrically connected to the output electrodes. The housing comprises a first support and a second support, which are opposite each other. A receiving space for the battery module is formed between the first and second supports. A recess is provided in the first support. The base for the output electrodes comprises a main body part and a mounting part, which are connected to each other. At least a portion of the main body part is received in the recess. One end of the output electrode is attached to the main body part. The mounting part is arranged on a side of the first support facing away from the battery module and is connected to the first support.

[0006] Advantageous effect of the embodiments of this application: The battery provided in this embodiment of the present application has a recess on its first support for receiving at least a part of the main body of the base for the output electrodes. The fastening element is attached to the side of the first support facing away from the battery module. This places the mounting position of the base for the output electrodes on the first support on the side facing away from the battery module. The base for the output electrodes can be mounted outside the upper area of ​​the first support by means of its fastening element. This effectively reduces the interference with the mounting of the base for the output electrodes caused by the upper mounting space of the first support. The base for the output electrodes can thus be more easily fixed and mounted by means of the fastening element.

[0007] In some embodiments, the fastening element comprises a first connecting structure and a second connecting structure. Along the longitudinal direction of the first support, the first connecting structure and the second connecting structure are each connected to opposite ends of the main body part. The first connecting structure and the second connecting structure are each connected to the first support.

[0008] By applying the aforementioned technical solution, in which the first connecting structure and the second connecting structure are each connected to the opposite ends of the main body part in the longitudinal direction of the first support, and the first support is fixed by the connection of the first and second connecting structures, the first and second connecting structures at the two ends enable a more stable mounting of the main body part on the first support.

[0009] In some embodiments, the fastening part further comprises a third connecting structure which is arranged between the first connecting structure and the second connecting structure and is connected to the first connecting structure, the second connecting structure and the main body part, respectively.

[0010] By applying the aforementioned technical solution, the first connecting structure, the second connecting structure and the main body part are connected to each other by the third connecting structure, thereby improving the consistency of the first and second connecting structures, and consequently further improving the stability with which the main body part is attached to the first support via the first and second connecting structures.

[0011] In some embodiments, the third connecting structure rests against an outer wall surface of the first support on the side facing away from the battery module.

[0012] By applying the aforementioned technical solution, if the first connecting structure and the second connecting structure are attached to the first beam, the third connecting structure can rest against the outer wall surface of the first beam, so that the first, the second and the third connecting structure can act together on the first beam, thereby improving the stability of the main body part.

[0013] In some embodiments, the battery further comprises a printed circuit board, the printed circuit board is connected to the battery module and fixedly connected to the first support; wherein the printed circuit board and the mounting part are each connected to different side faces of the first support.

[0014] By applying the aforementioned technical solution, the circuit board and the mounting part are each connected to different side surfaces of the first carrier, thereby reducing the influence that the displacement of the mounting space of the first carrier by the circuit board's own width has on the mounting of the mounting part.

[0015] In some embodiments, the base for the output electrodes further comprises an insulating cover that covers the main body part and forms a receiving space, with one end of the output electrode being arranged in this receiving space.

[0016] By applying the aforementioned technical solution, an insulating cover is used which is arranged on the main body part to form a receiving space, whereby the output electrode attached to the main body part can be received in the receiving space, and the protective effect for the output electrodes is effectively improved.

[0017] In some embodiments, the main body part extends towards the battery module and forms a first flange, wherein a first connection opening for inserting the output electrode into the receiving space is formed between the first flange and the insulating cover.

[0018] By applying the aforementioned technical solution, the first flange with the insulating cover can form a first connection opening, and the output electrode can be inserted from the first connection opening into the receiving space; furthermore, the first flange can improve the insulating protection effect for the output electrodes.

[0019] In some embodiments, the first flange extends beyond the recess, and the first flange is located between the first support and the output electrode.

[0020] By applying the aforementioned technical solution, the first flange can increase the creepage distance between the output electrode and the first support in order to reduce the probability of a current leakage.

[0021] In some embodiments, the housing further comprises a partition plate extending between the output electrode and the first flange.

[0022] By applying the aforementioned technical solution, the separating plate can extend between the output electrode and the first flange, so that the separating plate and the first flange between the output electrode and the first support form an overlap, which can further reduce the probability of leakage current.

[0023] In some embodiments, the main body part extends in the longitudinal direction of the first support and forms a second flange that is arranged on the outer surface of the first support.

[0024] By applying the aforementioned technical solution, the creepage distance between the output electrode and the first support is increased in the longitudinal direction of the first support by forming the second flange in the longitudinal direction of the first support.

[0025] In some embodiments, the second flange is connected to the first flange and the fastening part.

[0026] By applying the aforementioned technical solution, the second flange is connected to the first flange and the fastening part, so that the output electrode in the receiving space can increase the creepage distance to the first beam both in the longitudinal direction of the first beam and in any direction that intersects the longitudinal direction of the first beam, thus improving the insulation protection effect; at the same time, the first flange, the second flange and the fastening part can enclose the opening of the recess, improve the sealing effect of the recess and reduce the probability of metal shavings present inside the first beam falling out of the recess.

[0027] In some embodiments, the side surface of the second flange facing the insulating cover has a wave-like structure.

[0028] By applying the aforementioned technical solution, since creepage currents form along the surface of the insulator, the formation of the wave-shaped structure on the second flange can effectively increase the creepage distance from the output electrode to the first support, thereby further improving the protective effect of the base for the output electrodes.

[0029] In some embodiments, a first retaining section is formed on the insulating cover, which interacts positively with the wave-shaped structure.

[0030] By applying the aforementioned technical solution, the insulating cover interacts positively with the wave-shaped structure via the first retaining section, whereby the wave-shaped structure can limit the movement of the first retaining section, and consequently the movement of the insulating cover can be limited.

[0031] In some embodiments, the main body part is recessed in the longitudinal direction of the first support to form a locking groove, and a locking section is formed on the insulating cover which is inserted into the locking groove.

[0032] By applying the aforementioned technical solution, the locking groove on the main body part is used to connect the locking section of the insulating cover in the plug-in connection, so that the locking groove limits the movement of the locking section, and consequently the insulating cover can be kept in the state in which it covers the main body part.

[0033] In some embodiments, a retaining groove is provided on the main body part, and a second retaining section is formed on the insulating cover, which is inserted into the retaining groove, the retaining groove serving to limit the movement of the second retaining section in a direction perpendicular to the longitudinal direction of the first support.

[0034] By applying the aforementioned technical solution, the insulating cover can be inserted into the retaining groove of the main body part in a limited manner by the second retaining section, whereby the retaining groove can restrict the movement of the second retaining section in a direction perpendicular to the longitudinal direction of the first support, and consequently the movement of the insulating cover in a direction perpendicular to the longitudinal direction of the first support is also limited.

[0035] In some embodiments, the main body part comprises a base, a first side wall arranged on the base, and two second side walls arranged opposite each other on the base, the two second side walls each being connected to the first side wall; the insulating cover together with the base, the first side wall and the second side walls forms the receiving space.

[0036] By applying the aforementioned technical solution, an insulating cover is used that covers and encloses the bottom, the first side wall and the two second side walls to form a receiving space for insulating protection of the output electrode.

[0037] In some embodiments, the base for the output electrodes further comprises a connecting section which is arranged on the main body part and located in the receiving space, wherein the output electrode is connected to the connecting section.

[0038] By applying the aforementioned technical solution, the output electrode can be connected to the connection section in the recording space, thereby facilitating the connection process of the output electrode in the recording space.

[0039] Secondly, the embodiments of this application also provide an electrical device comprising the above battery, wherein the battery serves to provide electrical energy.

[0040] Advantageous effect of the embodiments of this application: The electrical device provided in this embodiment includes the above battery, thereby improving the mounting structure of the battery used in the electrical device and also improving the assembly process of the electrical device. DESCRIPTION OF THE FIGURES

[0041] To illustrate the technical solutions in the embodiments of this application more clearly, the figures required to describe these embodiments or the prior art are briefly presented below. Obviously, the figures shown in the following description represent only some embodiments of this application. Those skilled in the art can derive further figures from these without inventive step. Fig. Figure 1 shows a schematic representation of the structure of a vehicle according to an embodiment of the present application; Fig. 2 shows an exploded view of a battery according to an embodiment of the present application; Fig. Figure 3 shows a schematic representation of the internal structure of the housing according to an embodiment of the present application; Fig. Figure 4 shows an enlarged detail view of part A. Fig. 3; Fig. Figure 5 shows a schematic representation of the structure of the base for the output electrodes according to an embodiment of the present application; Fig. Figure 6 shows an internal section through the base for the output electrodes and the insulating cover according to an embodiment of the present application; Fig. Figure 7 shows an internal section through the base for the output electrodes and the insulating cover from a different perspective according to an embodiment of the present application.

[0042] The reference symbols in the figures denote: 1000, vehicle; 100, battery; 200, control unit; 300, engine; 10, Housing; 101, Recording chamber; 11, First part; 12, Second part; 13, Dividing plate; 110, first support; 111, recess; 120, Base for output electrodes; 121, Main body part; 121a, Base; 121b, First side wall; 121c, Second side wall; 1211, First flange; 1212, Second flange; 12121, Corrugated structure; 1213, Locking groove; 1214, Retaining groove; 122, Fastening part; 1221, First connection structure; 1222, Second connection structure; 1223, Third connection structure; 123, Connection section; 130, insulating cover; 1301, receiving space; 1302, first connection opening; 131, first holding section; 132, resting section; 133, second holding section; 140, second support; 20, battery module; 21, output electrode; 22, peripheral electrical connection structure; 30, circuit board; X, longitudinal direction of the first support. DETAILED DESCRIPTION OF THE EXECUTION FORMS

[0043] The embodiments of the present application are described in detail below, with examples of these embodiments illustrated in the figures, where identical or similar reference numerals consistently denote identical or similar components or components with the same or similar function. The embodiments described below with reference to the figures are exemplary, serve only to illustrate the present application, and should not be construed as limiting this application.

[0044] The description of this application should point out that the terms "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "upper side", "lower side", "inside", "outside", etc., which indicate the orientation or positional relationship based on the figures, serve only to simplify the description of this application and do not mean that the device or element in question must have a specific orientation or be designed and operated in a specific orientation. They should therefore not be interpreted as limiting the present application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating relative importance or as implicitly specifying the number of technical features listed. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of these features. In the description of this application, "several" means two or more unless expressly defined otherwise.

[0046] In this application, unless expressly defined and limited otherwise, terms such as "assemble", "connect", "connect", "fasten", etc., are to be understood broadly; for example, they may refer to a permanent connection, a detachable connection, or an integral component; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection via an intermediate medium; they may refer to the internal connection between two components or the interaction between two components. Those skilled in the art in this field can understand the specific meaning of the aforementioned terms in this application based on the specific circumstances.

[0047] Looking at current market developments, the use of traction batteries is becoming increasingly widespread. Traction batteries are not only used in energy storage systems such as hydroelectric, thermal, wind, and solar power plants, but also in numerous other sectors, including e-bikes, e-motorcycles, electric vehicles, as well as military equipment and aerospace. With the continuous expansion of applications for traction batteries, market demand is also constantly increasing.

[0048] To increase energy density, the integration level of batteries is continuously being improved. Simultaneously, fast charging is increasingly achieved using high voltage and high C-rates. However, generating high voltage requires connecting numerous battery cells in series, leading to an increased need for connecting leads and wider, flexible circuit boards. At the same time, the high current generated at high C-rates necessitates a wider busbar. Consequently, the upper mounting space for the support structure inside the housing is restricted, particularly along the longitudinal axis of the inner supports, which significantly impacts the arrangement of the output electrode sockets for mounting the positive and negative output electrodes.

[0049] Based on the above considerations, a battery is developed to solve the problem that the limited mounting space at the top of the support structure in the housing interferes with the mounting of the output electrode socket. For this purpose, a recess is provided in the first support of the housing, in which the main body part of the output electrode socket is accommodated. The mounting element of the output electrode socket is attached to the side of the first support facing away from the battery module, allowing it to be positioned offset from the top of the support. This effectively reduces the displacement of the upper mounting space of the first support, thus minimizing its impact on the mounting of the output electrode socket. Furthermore, the mounting element facilitates the secure attachment of the output electrode socket.

[0050] The battery disclosed in the embodiments of this application can be used as a power source for electrical devices or as an energy storage element in various energy storage systems. Electrical devices include, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, e-bikes, electric vehicles, ships, and spacecraft. Electric toys include, among others, stationary and mobile electric toys such as game consoles, electric toy cars, electric toy ships, and electric toy airplanes. Spacecraft include, for example, airplanes, rockets, space shuttles, and spacecraft.

[0051] In the following exemplary embodiments, for the sake of simplicity, a vehicle 1000 is used as an example of an electrical device according to an exemplary embodiment of the present application.

[0052] See Fig. 1. Fig. Figure 1 shows a schematic representation of the structure of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 can be a motor vehicle with an internal combustion engine, a gas-powered motor vehicle, or a novel energy vehicle, wherein novel energy vehicles can be pure electric vehicles, hybrid vehicles, or range-extended vehicles, etc. A battery 100 is installed in the vehicle 1000. The battery 100 can be located in the floor, in the front, or in the rear of the vehicle 1000. The battery 100 can be used to supply power to the vehicle 1000; for example, the battery 100 can serve as the operating current source for the vehicle 1000.The vehicle 1000 can also include a control unit 200 and a motor 300, the control unit 200 serving to control the battery in order to supply power to the motor 300, for example to meet the energy requirements of the vehicle 1000 during the starting process, navigation and driving.

[0053] In some embodiments of this application, the battery 100 can serve not only as the operating current source of the vehicle 1000, but also as the propulsion current source of the vehicle 1000 by replacing or partially replacing fuel or natural gas to provide propulsion power for the vehicle 1000.

[0054] See Fig. 2. Fig. Figure 2 shows an exploded view of a battery 100 according to some embodiments of the present application. The battery 100 comprises a housing 10 and a battery module 20. The battery module 20 is housed in the housing 10. The battery module 20 is a modular construction formed by the arrangement of several battery cells and their series and parallel connection via current collectors. The housing 10 serves to provide a receiving space for the battery module 20, and the housing 10 can be implemented in various configurations. In some embodiments, the housing 10 can comprise a first part 11 and a second part 12, the first part 11 and the second part 12 being mutually overlapping, and together forming a receiving space for the battery module 20.The second part 12 can be a hollow structure open on one side, for example, a hollow structure created by connecting and enclosing a base plate and a side support. The first part 11 can have a plate-like construction, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 together form the receiving space. The first part 11 and the second part 12 can also both be hollow structures open on one side, for example, a hollow structure created by connecting and enclosing a base plate and a side support, with the open side of the first part 11 covering the open side of the second part 12. Naturally, the housing 10 formed by the first part 11 and the second part 12 can take on various shapes, such as cylindrical, cuboid, etc.

[0055] According to some embodiments of the present application (see Fig. Figures 3 to 6 describe embodiments of a battery 100 comprising a housing 10, a battery module 20, and a base for the output electrodes 120. The battery module 20 is electrically connected to an output electrode 21. The housing 10 comprises a first support 110 and a second support 140, which are opposite each other. A receiving space 101 for receiving the battery module 20 is formed between the first support 110 and the second support 140. A recess 111 is provided in the first support 110. The base for the output electrodes 120 comprises a main body part 121 and a mounting part 122, which are connected to each other. At least a portion of the main body part 121 is received in the recess 111. One end of the output electrode 21 is attached to the main body part 121. The fastening part 122 is arranged on a side of the first support 110 that is facing away from the battery module 20 and is connected to the first support 110.

[0056] The first support 110 and the second support 140 are two internal support structures on the housing 10, positioned opposite each other. A receiving space 101 can be formed between the first support 110 and the second support 140 to accommodate the battery module 20. Optionally, the first support 110 and the second support 140 can also be different support structures such as rolled beams, profile beams, etc.

[0057] A recess 111 is provided on the first support 110. Optionally, an opening can be provided on a side wall of the first support 110 to form the recess 111. Alternatively, openings can be provided on two intersecting wall surfaces of the first support 110 to form the recess 111. This allows the main body part 121 of the base for the output electrodes 120 to be inserted through the opening into the recess 111, so that at least part of the main body part 121 is received in the recess 111.

[0058] The base for the output electrodes 120 comprises a main body part 121 and a mounting part 122. The main body part 121 is an insulating component, for example, a base structure made of silicone, rubber, plastic, or other materials. The main body part 121 can be, but is not limited to, various designs such as plates, frames, or brackets. Optionally, the main body part 121 can be partially recessed in the recess 111 and partially protrude from it. Alternatively, the main body part 121 can also be completely recessed in the recess 111.

[0059] Understandably, the main body part 121 is received in the recess 111 and can rest against the inner wall of the recess 111, i.e., against the inner wall surface of the first support 110. The main body part 121 can be firmly connected to the inner wall of the recess 111 by gluing, snapping, welding, etc. Or the main body part 121 can simply be received in the recess 111 without any connection to the inner wall of the recess 111.

[0060] The fastening part 122 can be joined to the main body part 121 to form a unit using fasteners, adhesive bonding, or integral injection molding. The fastening part 122 serves to connect and secure the main body part 121 to the first support 110 in order to fix it in the recess 111 of the first support 110.

[0061] Optionally, the fastening part 122 includes, but is not limited to, constructions such as blocks, sheets, and brackets, etc. The fastening part 122 can be attached to the side surface of the first support 110 by means of fasteners or by gluing.

[0062] The mounting element 122 is attached to the side of the first support 110 facing away from the battery module 20. Both the side facing away from and the side facing the battery module 20 of the first support 110 have an exposed top surface that intersects the aforementioned opposing side walls. This top surface serves for the secure mounting of components (such as circuit boards, pressure strips, etc.) inside the battery 100. The base for the output electrodes 120 is thus firmly connected to the side of the first support 110 facing away from the battery module 20 via the mounting element 122 and can be mounted and secured offset from its top surface, thereby providing more mounting space for the mounting element 122.

[0063] The previously mentioned output electrode 21 serves to deliver electrical energy to an external device. The output electrode 21 can be made of a material with good conductivity, such as copper sheet, aluminum sheet, or a copper-aluminum composite. For example, the output electrode 21 could be a copper busbar.

[0064] The battery 100 provided in this embodiment of the present application has a recess 111 on its first support 110 for receiving at least a part of the main body part 121 of the base for the output electrodes 120. The fastening element 122 is attached to the side of the first support 110 facing away from the battery module 20. This places the mounting position of the base for the output electrodes 120 on the first support 110 on the side facing away from the battery module 20. The base for the output electrodes 120 can be mounted outside the upper area of ​​the first support 110 by means of its fastening element 122. This effectively reduces the interference with the mounting of the base for the output electrodes 120 caused by its occupancy of the upper mounting space of the first support 110. The base for the output electrodes 120 can thus be more easily fixed and mounted by means of the fastening element 122.

[0065] See Fig. 5 and Fig. 6. In some embodiments, the fastening element 122 comprises a first connecting structure 1221 and a second connecting structure 1222. Along the longitudinal direction X of the first support 110, the first connecting structure 1221 and the second connecting structure 1222 are each connected to the opposite ends of the main body part 121. The first connecting structure 1221 and the second connecting structure 1222 are each connected to the first support 110.

[0066] The first connecting structure 1221 and the second connecting structure 1222 are each connected to the main body part 121. The first connecting structure 1221 can be permanently connected to the main body part 121 by gluing, welding, joining with fasteners, one-piece forming, etc. Likewise, the second connecting structure 1222 can be permanently connected to the main body part 121 in the same way. For example, both the first connecting structure 1221 and the second connecting structure 1222 can be formed in one piece with the main body part 121.

[0067] The first connecting structure 1221 and the second connecting structure 1222 are each connected to the first beam 110. The first connecting structure 1221 can be permanently connected to the first beam 110 by gluing, welding, fastening, or similar methods. Likewise, the second connecting structure 1222 can be permanently connected to the first beam 110 by gluing, welding, fastening, or similar methods. For example, both the first connecting structure 1221 and the second connecting structure 1222 can be attached to the first beam 110 using fasteners (e.g., bolts, screws, etc.).

[0068] Optionally, the first connecting structure 1221 includes, among other things, a connecting block, a connecting plate, a connecting bracket or the like; likewise, the second connecting structure 1222 includes, among other things, a connecting block, a connecting plate, a connecting bracket or the like.

[0069] In this arrangement, the first connecting structure 1221 and the second connecting structure 1222 are each connected to the opposite ends of the main body section 121 in the longitudinal direction X of the first support 110. The first support 110 is fixed by the connection of the first connecting structure 1221 and the second connecting structure 1222. The connecting structures 1221 and 1222 at both ends ensure a more stable attachment of the main body section 121 to the first support 110.

[0070] See Fig. 5 and Fig. 6. In some embodiments, the fastening part 122 further comprises a third connecting structure 1223. The third connecting structure 1223 is arranged between the first connecting structure 1221 and the second connecting structure 1222 and is connected to the first connecting structure 1221, the second connecting structure 1222 and the main body part 121, respectively.

[0071] Optionally, the third connecting structure 1223 can be permanently connected to the main body part 121 by gluing, welding, joining with fasteners, one-piece forming, or the like; likewise, the third connecting structure 1223 can be connected to the first connecting structure 1221 and the second connecting structure 1222 by gluing, welding, joining with fasteners, one-piece forming, or the like. For example, the first connecting structure 1221, the second connecting structure 1222, the third connecting structure 1223, and the main body part 121 are formed in one piece.

[0072] The third connecting structure 1223 can be firmly connected to the first support 110, or the third connecting structure 1223 can rest on the surface of the first support 110 without being connected to it, or there can be a gap between the third connecting structure 1223 and the first support 110.

[0073] Optionally, the third connection construction 1223 includes, among other things, a connecting block, a connecting plate, a connecting bracket or the like.

[0074] This arrangement, in which the third connecting structure 1223 connects the first connecting structure 1221, the second connecting structure 1222 and the main body part 121, improves the consistency of the first connecting structure 1221 and the second connecting structure 1222, thereby further increasing the stability of the main body part 121, which is attached to the first support 110 via the first connecting structure 1221 and the second connecting structure 1222.

[0075] See Fig. 5 and Fig. 6. In some embodiments, the third connecting structure 1223 rests against an outer wall surface of the first support 110 on the side facing away from the battery module 20.

[0076] Understandably, the third connecting structure 1223 rests against an outer wall surface of the first support 110 on the side facing away from the battery module 20, if the first connecting structure 1221 and the second connecting structure 1222 are firmly connected to the first support 110.

[0077] In this arrangement, the first connecting structure 1221 and the second connecting structure 1222 form a rigid connection with the first support 110 when the base for the output electrodes 120 is attached to the first support 110, and the third connecting structure 1223 rests against the outer wall surface of the first support 110. Thus, the first connecting structure 1221, the second connecting structure 1222, and the third connecting structure 1223 exert a combined force on the first support 110, thereby improving the stability of the main body part 121. Simultaneously, the first connecting structure 1221, the second connecting structure 1222, and the third connecting structure 1223 seal the recess 111, reducing the likelihood of metal shavings falling out of the interior of the first support 110 through the recess 111.

[0078] See Fig. 3 to 5. In some embodiments, the battery 100 further comprises a circuit board 30, which is connected to the battery module 20 and fixedly connected to the first support 110. The circuit board 30 and the mounting part 122 are each attached to opposite sides of the first support 110.

[0079] Understandably, the circuit board 30 is firmly connected to the first support 110. The circuit board 30 is attached to the top of the first support 110, i.e., to the exposed wall surface located at the intersection of the side facing the battery module 20 and the opposite side of the first support 110, facing away from the battery module 20.

[0080] In this arrangement, the circuit board 30 and the mounting part 122 are each attached to different sides of the first support 110, which reduces the influence of the displacement of the mounting space of the first support 110 by the width of the circuit board 30 on the mounting of the mounting part 122.

[0081] See Fig. 4 to 6. In some embodiments, the base for the output electrodes 120 further comprises an insulating cover 130, which encloses the main body part 121 and forms a receiving chamber 1301. One end of the output electrode 21 is arranged in the receiving chamber 1301.

[0082] The insulating cover 130 is an insulating component, for example, a cover made of materials such as silicone, rubber, or plastic. The insulating cover 130 can be arranged on the main body part 121 and forms a receiving space 1301, so that one end of the output electrode 21 can be positioned in the receiving space 1301 to establish a connection with the external electrical connection structure 22.

[0083] Optionally, the insulating cover 130 can be designed as a hollow structure with one open side. The insulating cover 130 encloses the main body part 121 via its open side, thus forming a largely sealed receiving chamber 1301. Both the output electrode 21 and the external electrical connection structure 22 can be inserted through the opening into the receiving chamber 1301 to be connected to each other.

[0084] The aforementioned external electrical connection structure 22 can be a conductive structure such as a current collector or a busbar.

[0085] In this arrangement, in which the insulating cover 130 is arranged on the main body part 121 and forms a receiving space 1301, the output electrode 21 attached to the main body part 121 is received within the receiving space 1301, thereby effectively improving the protection of the output electrode 21.

[0086] See Fig. 4 to 6. In some embodiments, the main body part 121 extends towards the battery module 20 and forms a first flange 1211. A first connection opening 1302 is formed between the first flange 1211 and the insulating cover 130, through which the output electrode 21 is inserted into the receiving chamber 1301.

[0087] Understandably, a gap can be formed between the first flange 1211 and the insulating cover 130, through which the output electrode 21 can be passed. This gap forms the first connection opening 1302. Alternatively, a slot opening can be formed in the insulating cover 130 at the point facing the first flange 1211, so that the first flange 1211 encloses this slot opening and thus forms the first connection opening 1302.

[0088] Understandably, the aforementioned direction towards the battery module 20 can be a direction perpendicular to the longitudinal direction X of the first support 110.

[0089] Since the first flange 1211 extends towards the battery module 20, it is oriented into the receiving chamber 101. The output electrode 21 can thus be inserted from the receiving chamber 101 through the first connection opening 1302 into the receiving chamber 1301 to be connected there to the external electrical connection structure 22.

[0090] This arrangement creates a first connection opening 1302 between the first flange 1211 and the insulating cover 130, through which the output electrode 21 can be inserted into the receiving chamber 1301. Furthermore, the first flange 1211 improves the insulating protection for the output electrode 21.

[0091] See Fig. 4 to 6. In some embodiments, the first flange 1211 protrudes from the recess 111 and is located between the first support 110 and the output electrode 21.

[0092] Understandably, the first flange 1211 is formed on the main body part 121 and protrudes from the recess 111. The first flange 1211, located outside the recess 111, and the main body part 121, located inside the recess 111, can together shield the area of ​​the first support 110 at the opening of the recess 111 to ensure insulation protection.

[0093] Simultaneously, the first flange 1211 is located between the first support 110 and the output electrode 21. Furthermore, the first flange 1211 can separate the output electrode 21 from the section of the first support 110 located at the opening of the recess 111 at the first connection opening 1302. This increases the creepage distance between the first support 110 and the output electrode 21, thereby improving the insulation protection for the first support 110.

[0094] See Fig. 3 to 6. In some embodiments, the housing 10 further comprises a separating plate 13 extending between the output electrode 21 and the first flange 1211.

[0095] The partition plate 13 has insulating properties and is arranged in the receiving space 101. The partition plate 13 serves as a support structure for the integrated mounting of internal components, for example current collectors or tap leads.

[0096] This arrangement, in which the insulating separating plate 13 between the output electrode 21 and the first support 110 is extended so that the separating plate 13 and the first flange 1211 between the output electrode 21 and the first support 110 overlap, effectively increases the creepage distance between the output electrode 21 and the first support 110 and further improves the insulation protection between the output electrode 21 and the first support 110.

[0097] See Fig. 4 to 7. In some embodiments, the main body part 121 extends along the longitudinal direction X of the first support 110 and forms a second flange 1212 which is arranged on the outer surface of the first support 110.

[0098] Optionally, the main body part 121 can form a second flange 1212 on any side in the longitudinal direction X of the first support 110, or the main body part 121 can have a second flange 1212 on both opposite sides in the longitudinal direction X of the first support 110.

[0099] The second flange 1212 is arranged on the outer surface of the first support 110. Understandably, the second flange 1212 can be in contact with the outer surface of the first support 110 or connected to the first support 110 by adhesive bonding, fasteners, or the like; alternatively, there can be a gap between the second flange 1212 and the outer surface of the first support 110.

[0100] This arrangement, in which a second flange 1212 is formed along the longitudinal direction X of the first support 110, increases the creepage distance between the output electrode 21 and the first support 110 in the longitudinal direction X.

[0101] See Fig. 4 to 7. In some embodiments, the second flange 1212 is connected to the first flange 1211 and the fastening part 122.

[0102] Understandably, the second flange 1212 can be connected to the first flange 1211, for example, by gluing, joining with fasteners, joining, or the like, or the second flange 1212 and the first flange 1211 can be formed in one piece by injection molding or the like. Likewise, the second flange 1212 can be connected to the mounting part 122 by gluing, joining with fasteners, joining, or the like, or formed in one piece by injection molding or the like.

[0103] The second flange 1212 is formed on the opposite sides of the main body part 121 along the longitudinal direction X of the first support 110, the first flange 1211 is formed on the side of the main body part 121 facing the battery module 20, and the second flange 1212 is connected to the fastening part 122. Thus, the first flange 1211, the second flange 1212, and the fastening part 122 together enclose the area of ​​the first support 110 at the opening of the recess 111, thereby separating the interior and exterior of the recess 111 and reducing the likelihood of metal shavings falling out of the recess 111.

[0104] This arrangement, in which the second flange 1212 is connected to the first flange 1211 and the mounting part 122, increases the creepage distance between the output electrode 21 and the first support 110 both in the longitudinal direction X of the first support 110 and in the direction of the battery module 20, resulting in improved insulation protection. Simultaneously, the first flange 1211, the second flange 1212, and the mounting part 122 enclose and seal the opening of the recess 111, thereby reducing the likelihood of metal shavings falling out of the interior of the first support 110 through the recess 111.

[0105] See Fig. 4, Fig. 5 and Fig. 7. In some embodiments, the second flange 1212 has a wave structure 12121 on its surface facing the insulating cover 130.

[0106] The wave structure 12121 is formed on the surface of the second flange 1212 facing the insulating cover 130 and represents a wave-like structure on the surface of the second flange 1212. Due to the properties of the creepage current, the creepage path along the surface of the wave structure 12121 extends over a longer distance, thus increasing the creepage distance between the output electrode 21 located in the receiving chamber 1301 and the first support 110.

[0107] For example, the wave structure 12121 can be formed by an inwardly directed depression of the surface of the second flange 1212, so that the wave structure 12121 represents a groove structure formed by the depression; alternatively, the wave structure 12121 can be formed by an outwardly directed elevation of the surface of the second flange 1212, so that the wave structure 12121 represents a rib structure formed by the elevation.

[0108] The wave structure 12121 can be arranged perpendicular to the longitudinal direction X of the first support 110 on the surface of the second flange 1212. Alternatively, the wave structure 12121 can penetrate the second flange 1212 perpendicular to the longitudinal direction X of the first support 110. Using the example of a wave-shaped groove, its opposite ends can penetrate the second flange 1212 to the outside perpendicular to the longitudinal direction X of the first support 110. If creep occurs on the second flange 1212 and propagates in the longitudinal direction X of the first support 110, the wave-shaped groove effectively increases the creep distance.

[0109] It is understood that the number of wave structures 12121 can be any number of one or more.

[0110] This arrangement, in which a wave structure 12121 is formed along the surface of the insulator on the second flange 1212, effectively increases the creepage distance between the output electrode 21 and the first support 110 and further improves the protection of the base for the output electrodes 120.

[0111] See Fig. 4, Fig. 5 and Fig. 7. In some embodiments, a first retaining section 131 is formed on the insulating cover 130, which interacts positively with the wave structure 12121.

[0112] Understandably, the first retaining section 131 interacts positively with the wave structure 12121. In some embodiments, the wave structure 12121 can be a wave-shaped groove, so that the first retaining section 131 can be a projection formed on the insulating cover 130, which is inserted into the wave-shaped groove. The projection can then only move along the wave-shaped groove, while the wave-shaped groove limits movements of the projection in other directions.

[0113] In other embodiments, the wave structure 12121 can be a wave-shaped ridge, such that the first retaining section 131 can be a groove formed on the insulating cover 130 into which the wave-shaped ridge is inserted. This restricts the insulating cover 130 to moving only along the longitudinal direction of the wave-shaped ridge.

[0114] This arrangement allows the insulating cover 130 to interact positively with the wave structure 12121 via the first retaining section 131. The wave structure 12121 limits the movement of the first retaining section 131 and thus the movement of the insulating cover 130.

[0115] See Fig. 4, Fig. 5 and Fig. 7. In some embodiments, the main body part 121 has a locking groove 1213 in the longitudinal direction X of the first support 110, and the insulating cover 130 has a locking section 132 which is inserted into the locking groove 1213.

[0116] Understandably, the locking groove 1213 is a groove structure formed on the main body part 121. The locking groove 1213 can be, for example, an elongated groove, a rectangular groove, or a round groove. For example, the locking groove 1213 can be an elongated groove whose longitudinal direction runs towards the battery module 20. The locking groove 1213 can be located at any point on the outer surface of the main body part 121 to accommodate the locking section 132 of the insulating cover 130. Optionally, the number of locking grooves 1213 can be any number, from one to several.

[0117] The locking section 132 is formed on the insulating cover 130. Optionally, the locking section 132 can be, for example, a block, sheet metal, or rod element on the insulating cover 130. The number of locking sections 132 can be any number, from one to several. The locking section 132 is designed to be inserted into the locking groove 1213 and to engage with it in a form-fitting manner. The inner wall of the locking groove 1213 limits the movement of the locking section 132.

[0118] This arrangement allows the locking section 132 of the insulating cover 130 to be received and connected by the locking groove 1213 on the main body part 121, so that the locking groove 1213 limits the movement of the locking section 132 and thus the relative movement of the insulating cover 130 to the main body part 121. This ensures that the insulating cover 130 remains in its position on the main body part 121.

[0119] For example, in some embodiments, the locking groove 1213 can be an elongated slot formed on the main body part 121, and the locking section 132 can be a locking projection formed on the end facing the insulating cover 130. When the insulating cover 130 is placed on the main body part 121, the locking projection is inserted into the elongated slot, thus holding the insulating cover 130 on the main body part 121. To remove the insulating cover 130, it can be compressed along the longitudinal direction X of the first support 110, causing the locking projection on the insulating cover 130 to slide out of the elongated slot.

[0120] See Fig. 4, Fig. 5 and Fig. 7. In some embodiments, the main body part 121 has a retaining groove 1214, and the insulating cover 130 has a second retaining section 133 that is inserted into the retaining groove 1214. The retaining groove 1214 serves to limit the movement of the second retaining section 133 in the direction perpendicular to the longitudinal direction X of the first support 110.

[0121] The retaining groove 1214 is a groove structure formed on the main body part 121. The retaining groove 1214 can be, for example, an elongated slot, a rectangular slot, or a round slot. There can be one or more retaining grooves 1214.

[0122] The second retaining section 133 is formed on the insulating cover 130. Optionally, the second retaining section 133 can be, for example, a block, sheet metal, or rod element. The number of second retaining sections 133 can be any number, from one to several. The second retaining section 133 is designed to be inserted into the retaining groove 1214 and to engage with it in a form-fitting manner. The inner wall of the retaining groove 1214 limits the movement of the second retaining section 133 in the direction perpendicular to the longitudinal direction X of the first support 110.

[0123] For example, in some embodiments, the main body part 121 can have two spaced-apart projections along the direction perpendicular to the longitudinal direction X of the first support 110, between which the retaining groove 1214 is formed. When the insulating cover 130 is placed on the main body part 121, the second retaining section 133 is inserted into the retaining groove 1214, and the opposite ends of the second retaining section 133 each rest against the wall surfaces of the two projections, thereby limiting the movement of the insulating cover 130 in the direction perpendicular to the longitudinal direction X of the first support 110.

[0124] See Fig. 4 to 7. In some embodiments, the main body part 121 comprises a base 121a, a first side wall 121b arranged on the base 121a, and two opposing second side walls 121c arranged on the base 121a. The two second side walls 121c are each connected to the first side wall 121b. The insulating cover 130, together with the base 121a, the first side wall 121b, and the second side walls 121c, forms the receiving chamber 1301.

[0125] Understandably, the base 121a, the first side wall 121b, and the second side walls 121c can be constructed of sheet metal or blocks. The base 121a, the first side wall 121b, and the two second side walls 121c can together form a concave groove. When the insulating cover 130 is placed on the main body part 121, it encloses this groove, thus forming the receiving space 1301.

[0126] Furthermore, if at least part of the main body section 121 is received in the recess 111, the first side wall 121b of the main body section 121 faces the side of the battery module 20, and the second side walls 121c are located on the opposite sides of the first side wall 121b in the longitudinal direction X of the first support 110. The first flange 1211 is formed on the first side wall 121b. The two second side walls 121c each extend along their outer sides to a second flange 1212. The locking groove 1213 is formed on the facing side walls of the two second side walls 121c. The retaining groove 1214 is formed on the sides of the two second side walls 121c facing away from the base 121a. The fastening part 122 can be connected to the outside of the base 121a and extend to the two second side walls 121c to be connected to the second flange 1212.

[0127] See Fig. 4 to 7. In some embodiments, the base for the output electrodes 120 further comprises a connecting section 123, which is arranged on the main body part 121 and positioned in the receiving chamber 1301. The output electrode 21 is connected to the connecting section 123.

[0128] The connecting section 123 serves to firmly connect the output electrode 21 and to electrically connect the output electrode 21 to the external electrical connection structure 22.

[0129] Optionally, the connecting section 123 can have a threaded bore so that the output electrode 21 can be attached to the connecting section 123 by means of bolts or screws and securely connected. Alternatively, the connecting section 123 can be a clamping element with a clamping function, wherein the output electrode 21 is inserted into the clamping element and clamped by actuating the clamping element to establish a connection.

[0130] In some embodiments, the connecting section 123 can be a washer with a threaded bore. A connecting groove is formed on the base 121a of the main body part 121, into which the washer is inserted. This allows the output electrode 21 and the external electrical connection structure 22 to be arranged one above the other on the washer and screwed into the threaded bore of the washer by means of bolts or screws, thus fixing the output electrode 21 and the external electrical connection structure 22 to the washer. The connecting groove provides clearance for the fastening elements such as bolts or screws.

[0131] This arrangement allows the output electrode 21 to be connected to the connecting section 123 located in the receiving chamber 1301, which facilitates the connection of the output electrode 21 in the receiving chamber 1301.

[0132] For example, in some specific embodiments, the base for the output electrodes 120 comprises a main body part 121 and a mounting part 122. The main body part 121 comprises a base 121a, a first side wall 121b arranged on the base 121a, and two second side walls 121c. The first side wall 121b extends toward the battery module 20 and forms a first flange 1211. Second flanges 1212 are formed on each of the two second side walls 121c and are integrally connected to the first flange 1211. A connecting groove is formed on the base 121a into which a washer with a threaded bore is inserted. The mounting part 122 comprises a first connecting structure 1221, a second connecting structure 1222, and a third connecting structure 1223, which are connected to one another.Both the first connecting structure 1221 and the second connecting structure 1222 each have a mounting hole. The third connecting structure 1223 is connected to the outside of the base 121a. The first connecting structure 1221 and the second connecting structure 1222 are each connected to the outsides of the two second side walls 121c and extend to the second flange 1212. Therefore, when assembling the base for the output electrodes 120, a portion of the main body part 121 is inserted into the recess 111 of the first support 110, so that the fastening part 122 rests against the surface of the first support 110 facing away from the battery module 20 and is fastened to the first support 110 by means of fastening elements that pass through the mounting holes.The fastening element 122, the first flange 1211, and the second flange 1212 all rest on the surface of the first support 110 and together enclose the opening of the recess 111. The insulating cover 130 is placed on the main body part 121, so that together with the base 121a, the first side wall 121b, and the second side walls 121c, it forms the receiving chamber 1301. The output electrode 21 can be inserted into the receiving chamber 1301 between the first flange 1211 and the insulating cover 130. The external electrical connection structure 22 can be inserted into the receiving chamber 1301 between the insulating cover 130 and the side of the base 121a facing away from the first side wall 121b. This allows the output electrode 21 and the external electrical connection structure 22 to be attached to the washer by means of a bolt and electrically connected to each other.

[0133] See Fig.1. According to a second aspect, the embodiments of the present application further provide an electrical device comprising the battery 100 described above, wherein the battery 100 serves to provide electrical energy. The electrical devices can be any of the electrical devices described in the above embodiments, for example, the vehicle 1000. This will not be discussed further here.

[0134] The above statements merely represent preferred embodiments of the present application and are not intended to limit the scope of the present application. Any modifications, equivalent replacements, and improvements made in accordance with the principles of the present application shall fall within the scope of protection of the present application.

Claims

[1] Battery, characterized by that it includes the following: a battery module to which an output electrode is electrically connected; a housing comprising a first support and a second support which are opposite each other and form a receiving space between them for receiving the battery module, wherein a recess is formed in the first support; and a base for the output electrode comprising a main body part and a mounting part connected to each other, wherein at least a part of the main body part is received in the recess and an end of the output electrode is attached to the main body part; wherein the mounting part is arranged on the side of the first support facing away from the battery module and is connected to the first support. [2] Battery according to claim 1, characterized by, that the fastening part comprises a first connecting structure and a second connecting structure, wherein the first connecting structure and the second connecting structure are each connected along the longitudinal direction of the first support to opposite ends of the main body part; and wherein the first connecting structure and the second connecting structure are each connected to the first support. [3] Battery according to claim 2, characterized by , that the fastening part further comprises a third connecting structure which is arranged between the first connecting structure and the second connecting structure and is connected to the first connecting structure, the second connecting structure and the main body part, respectively. [4] Battery according to claim 3, characterized by that the third connecting structure rests against the outer wall surface of the first support on the side facing away from the battery module. [5] Battery according to claim 1, characterized by , furthermore comprising a printed circuit board connected to the battery module and firmly attached to the first support; wherein the printed circuit board and the fastening part are each attached to different sides of the first support. [6] Battery according to any one of claims 1 to 5, characterized by , that the base for the output electrode further comprises an insulating cover that encloses the main body part and forms a receiving space, with one end of the output electrode being arranged in the receiving space. [7] Battery according to claim 6, characterized by , that the main body part extends towards the battery module and forms a first flange, and that a first connection opening is formed between the first flange and the insulating cover, through which the output electrode is inserted into the receiving space. [8] Battery according to claim 7, characterized by, that the first flange protrudes from the recess and is positioned between the first support and the output electrode. [9] Battery according to claim 7, characterized by , that it further comprises a separating plate extending between the output electrode and the first flange. [10] Battery according to any one of claims 7 to 9, characterized by , that the main body part extends along the longitudinal direction of the first support and forms a second flange, the second flange being located on the outer surface of the first support. [11] Battery according to claim 10, characterized by that the second flange is connected to the first flange and the fastening part. [12] Battery according to claim 10, characterized by that the surface of the second flange facing the insulating cover has a wave structure. [13] Battery according to claim 12, characterized by, that a first retaining section is formed on the insulating cover, which interacts positively with the wave structure. [14] Battery according to claim 7, characterized by , that the main body part has a locking groove in the longitudinal direction of the first support and the insulating cover has a locking section that is inserted into the locking groove. [15] Battery according to claim 14, characterized by , that the main body part has a retaining groove, the insulating cover has a second retaining section which is inserted into the retaining groove, and the retaining groove serves to limit the movement of the second retaining section in a direction perpendicular to the longitudinal direction of the first support. [16] Battery according to claim 7, characterized by, that the main body part comprises a base, a first side wall arranged at the base and two opposing second side walls arranged at the base, the two second side walls each being connected to the first side wall; and wherein the insulating cover together with the base, the first side wall and the second side walls forms the receiving space. [17] Battery according to claim 7, characterized by , that the base for the output electrode further comprises a connecting section which is arranged on the main body part and positioned in the receiving space, wherein the output electrode is connected to the connecting section. [18] Electrical appliance, characterized by , that it comprises a battery according to one of claims 1 to 17, wherein the battery serves to provide electrical energy.

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