Battery and electric device

Abstract

The invention relates to a battery and a power utilization device, and the battery comprises a box body which comprises a first side wall extending along a second direction, and the first side wall is located at one end of the box body along a first direction; the first direction is the width direction of the box body, and the second direction is the length direction of the box body; the battery module is mounted in the box body; the electrical bin is arranged on the first side wall and comprises a bin body and a maintenance cover, the maintenance cover and the bin body are detachably connected, a mounting space is formed between the maintenance cover and the bin body, at least part of the bin body is located on the first side wall and is arranged in a sunken mode close to one side of the battery module in the first direction, and reinforcing convex ribs are arranged on the inner surface of the bin body; and the electrical part is arranged in the mounting space and is connected with the part, with the reinforcing convex ribs, of the bin body. According to the arrangement mode of the electrical bin, the size of the battery in the height direction and the width direction is small, the reinforcing convex ribs play a role in reinforcing the strength of the bin body, the electrical parts are installed at the positions, provided with the reinforcing convex ribs, of the bin body, and deformation of the bin body when multiple electrical parts are installed can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular to a battery and a power utilization device. BACKGROUND

[0002] With the rapid expansion and development of the new energy market, the market share of new energy vehicles gradually increases, therefore, as the core component of new energy vehicles, power batteries are increasingly widely used in people's life.

[0003] The battery has electrical components for realizing power distribution and conversion, circuit protection, data monitoring, etc. The traditional battery has a low space utilization rate due to the unreasonable arrangement of the electrical components, thereby resulting in a low energy density of the battery. SUMMARY

[0004] Therefore, it is necessary to provide a battery and a power utilization device capable of improving the space utilization rate in view of the low space utilization rate of the battery.

[0005] In one aspect, the present application provides a battery, comprising:

[0006] a box body comprising a first side wall extending along a second direction, the first side wall being located at one end of the box body along a first direction; the first direction is the width direction of the box body, and the second direction is the length direction of the box body;

[0007] a battery module installed in the box body;

[0008] an electrical compartment provided on the first side wall, the electrical compartment comprising a compartment body and a maintenance cover, the maintenance cover being detachably connected with the compartment body and forming an installation space therebetween, at least part of the compartment body being recessed on the first side wall and close to one side of the battery module along the first direction, and an inner surface of the compartment body being provided with a reinforcing rib;

[0009] electrical components provided in the installation space and connected with the part of the compartment body having the reinforcing rib.

[0010] In one embodiment, the reinforcing rib comprises a reinforcing body and a protruding portion, the reinforcing body extending along the second direction, and the protruding portion being provided on at least one side of the reinforcing body along a third direction, the protruding portion being used for welding a first fastener, and the first fastener fixing the electrical components on the compartment body;

[0011] The third direction is the height direction of the box body.

[0012] In one embodiment, a plurality of reinforcing ribs are spaced apart along the third direction, and at least one electrical component is fixed on two reinforcing ribs spaced apart by at least one reinforcing rib; at least two adjacent reinforcing ribs have protrusions on the side of each other along the third direction, and the protrusions on the side of each other of the adjacent two reinforcing ribs are misaligned along the third direction, so that the connecting groove formed between the portions of the protrusions on the adjacent two reinforcing ribs is S-shaped, wherein the two protrusions corresponding to the S-shaped connecting groove are used to fix different electrical components.

[0013] In one embodiment, the first fastener passes through the protrusion from the outside of the housing away from the installation space and protrudes into the housing. The portion of the first fastener protruding into the housing passes through the electrical component and the grounding terminal in sequence. The first fastener fixes the electrical component and the grounding terminal to the housing.

[0014] In one embodiment, one end of the reinforcing rib near the bottom of the housing forms a gap, and a receiving space is formed between the gap and the adjacent reinforcing rib for accommodating the electrical safety component; the electrical compartment has a first opening in the compartment wall near the bottom of the housing, the first opening corresponding to and communicating with the receiving space, and the first opening allows a connecting bar to pass through to connect with the electrical safety component.

[0015] In one embodiment, the electrical safety component includes a fuse and a bracket for mounting the fuse. The bracket includes a heat dissipation portion and two mounting portions connected to the portion of the housing having the reinforcing rib. The two mounting portions are respectively connected to both sides of the heat dissipation portion along the second direction, and both mounting portions have mounting surfaces on the same side away from the housing in the first direction.

[0016] At least a portion of the heat dissipation section is recessed relative to the two mounting surfaces to form a receiving groove;

[0017] The fuse includes two ends and a middle portion connecting the two ends. The two ends are respectively mounted on the two mounting surfaces, and the middle portion is received in the receiving groove.

[0018] In one embodiment, each of the mounting portions has a connecting surface on the other side of the first direction that connects with the housing, and the heat dissipation portion is recessed in each of the connecting surfaces.

[0019] In one embodiment, the battery further includes a wiring harness, and the compartment wall near the top of the housing has an opening for the wiring harness;

[0020] The battery also includes a retaining sleeve disposed inside the housing. The retaining sleeve is installed on the housing and blocks the opening of the wiring harness. The wiring harness passes through the retaining sleeve to connect the battery module and at least part of the electrical components.

[0021] In one embodiment, the battery further includes a protective seat disposed within the housing. The protective seat includes a blocking portion and a wire-passing portion that are connected to each other and bent. The wire-passing portion is disposed on the adhesive-limiting sleeve and has a wire-passing hole through which the wire harness passes. One end of the blocking portion away from the wire-passing portion abuts against the wall of the housing near the top of the housing to prevent adhesive from flowing to the adhesive-limiting sleeve.

[0022] On the other hand, this application also provides an electrical device including the battery described above.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] In the aforementioned battery and electrical device, the battery's electrical compartment is located on the first side wall, and the electrical components are installed within the installation space of the electrical compartment. This is equivalent to the electrical components being installed on the side of the housing, thus preventing them from occupying space in the height direction of the housing, reducing the battery's height dimension, and allowing sufficient space at the top of the battery module for components such as busbars and flexible circuit boards, resulting in better space utilization and improved battery energy density. At least a portion of the electrical compartment is located within the first surface, preventing excessive outward extension of the electrical compartment in the first direction and reducing the battery's width dimension. The areas on the inner surface of the compartment with reinforcing ribs have higher strength, enhancing the compartment's overall strength. Installing the electrical components in these reinforcing rib areas reduces deformation of the compartment under stress. Attached Figure Description

[0025] Figure 1 An assembly diagram of a battery provided in one embodiment of this application;

[0026] Figure 2 for Figure 1 An exploded view of the battery shown;

[0027] Figure 3 for Figure 1 The diagram shown illustrates the structure of the battery removal and maintenance cover and the case cover.

[0028] Figure 4 for Figure 1 An exploded view of the battery casing and housing shown;

[0029] Figure 5 for Figure 1 The diagram shows the structure of the battery compartment.

[0030] Figure 6 for Figure 1 An exploded view of a portion of the battery structure shown;

[0031] Figure 7 for Figure 3 Enlarged view of section A of the structure shown;

[0032] Figure 8 for Figure 1 The front view shown is of the battery hidden behind the maintenance cover.

[0033] Figure 9 for Figure 1 An exploded view of the battery's electrical components shown.

[0034] Figure 10 for Figure 9 The structural diagram of the bracket for the electrical safety component shown;

[0035] Figure 11 for Figure 9 Another exploded view of the fuse electrical component shown;

[0036] Figure 12 for Figure 9 The assembly drawing of the fuse electrical components shown;

[0037] Figure 13 for Figure 9 The diagram shows the structure of the fuse electrical component connected to the first and second conductive busbars.

[0038] Figure 14 for Figure 10 The structural diagram of the bracket shown is from another perspective;

[0039] Figure 15 for Figure 1 The diagram shows a partial structural diagram of the battery.

[0040] Figure 16 for Figure 1 A structural diagram of a portion of the battery shown;

[0041] Figure 17 for Figure 16 An exploded view of the structure shown.

[0042] Explanation of reference numerals in the attached figures:

[0043] 100. Battery; 10. Housing; 11. First side wall; 111. Mounting slot; 112. First surface; 12. Second side wall; 20. Battery module; 21. First battery pack; 22. Second battery pack; 30. Electrical compartment; 31. Compartment body; 311. Reinforcing rib; 3111. Reinforcing body; 3112. Protrusion; 312. Base plate; 313. Side plate; 314. Wiring harness opening; 315. Connecting groove; 316. Accommodation space; 32. Maintenance cover; 33. First opening; 40. Electrical component; 40a. Fuse electrical component; 41. Fuse; 411. End; 412. Middle part; 42. Bracket; 421. Heat dissipation part; 4211. Heat dissipation hole; 422. Mounting part; 4221. Mounting surface; 4222. Connecting surface; 4223. Mounting hole; 423. 424. Receptacle; 425. First reinforcing plate; 426. Second reinforcing plate; 43. First embedded nut; 44. Fixing bolt; 45. Heat dissipation gap; 40b. Battery monitoring system; 40c. Battery management unit; 40d. Cell monitoring unit; 51. Wiring harness; 52. First conductive busbar; 53. Second conductive busbar; 54. Third conductive busbar; 55. Fourth conductive busbar; 60. Limiting sleeve; 70. Protective seat; 71. Blocking part; 72. Wire passage part; 721. Wire passage hole; 80. Wiring harness cable tie; 90. Sealing gasket; 110. Connector; 110a. Main positive connector; 110b. Main negative connector; 120. Filler; 130. Glue baffle; 140. Grounding terminal; 150. First fastener; 160. Second fastener; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0045] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0050] See Figure 1 and Figure 2This application provides a battery 100, which includes a housing 10 and a battery module 20. The battery module 20 is installed inside the housing 10, which protects the battery module 20. Optionally, the battery module 20 includes multiple battery cells, a busbar, and a flexible circuit board, etc. The battery cells can be cylindrical, prismatic, or pouch cells, and are not limited thereto. In some specific embodiments, the battery cells are cylindrical, and the battery module 20 includes a first battery pack 21 and a second battery pack 22 arranged in the height direction of the housing 10. Both the first battery pack 21 and the second battery pack 22 include multiple battery cells.

[0051] Continue reading Figure 1 and Figure 2 The battery 100 also includes an electrical compartment 30 and electrical components 40. The housing 10 has a first sidewall 11 at one end along a first direction X, and the first sidewall 11 extends along a second direction Y. Specifically, the first direction X is the width direction of the housing 10, and the second direction Y is the length direction of the housing 10. The electrical compartment 30 is mounted on the first sidewall 11. The electrical compartment 30 includes a compartment body 31 and a maintenance cover 32. The maintenance cover 32 is connected to the compartment body 31, and an installation space is formed between them. The electrical components 40 are installed within the installation space. Specifically, the maintenance cover 32 is detachably connected to the compartment body 31. The compartment body 31 is recessed into the first sidewall 11 along the first direction X towards the battery module 20, while the maintenance cover 32 is exposed. When it is necessary to inspect or repair the electrical components 40, the maintenance cover 32 can be directly removed without disassembling other components of the battery 100, making it convenient and quick.

[0052] In the above configuration, the electrical compartment 30 is located on the first side wall 11, and the electrical components 40 are installed within the installation space of the electrical compartment 30. This is equivalent to all electrical components 40 being installed on the side of the housing 10. It can be understood that the electrical components 40 are densely arranged in the side-mounted electrical compartment 30. In this way, the electrical components 40 do not occupy space in the height direction of the housing 10, reducing the size of the battery 100 in the height direction. Furthermore, it allows sufficient space on the top of the battery module 20 to accommodate components such as busbars and flexible circuit boards, resulting in better space utilization and thus improving the energy density of the battery 100.

[0053] Further reading Figure 3 At least a portion of the compartment 31 is located on the first sidewall 11 and recessed along the first direction X towards the side closest to the battery module 20. Specifically, the surface of the first sidewall 11 facing away from the battery module 20 along the first direction X is the first surface 112, meaning that at least a portion of the compartment 31 is recessed from the first surface 11 towards the side closest to the battery module 20. In this way, at least a portion of the electrical compartment 30 is located within the first surface 112, preventing the electrical compartment 30 from extending too far outward in the first direction X, and reducing the size of the battery 100 in the width direction.

[0054] In some embodiments, a portion of the compartment 31 is recessed on the side of the first surface 112 near the battery module 20, while the remaining portion protrudes from the first surface 112. In other embodiments, the entire compartment 31 does not extend beyond the first surface 112.

[0055] It should be noted here that, see Figure 4 In order to ensure that at least a portion of the compartment 31 does not protrude from the first surface 112, the first surface 112 of the first sidewall 11 needs to be provided with a mounting groove 111. The mounting groove 111 is generally a through groove that runs through the first sidewall 11 along the first direction X. The compartment 31 can be installed in the mounting groove 111, or the mounting groove 111 can be used to connect the maintenance cover 32 with the internal space of the compartment 31, so that the electrical components 40 can be exposed through the mounting groove 111 after the maintenance cover 32 is removed.

[0056] Further reading Figure 5 The inner surface of the compartment 31, which forms an installation space with the maintenance cover 32, is provided with reinforcing ribs 311. The portion of the inner surface of the compartment 31 with reinforcing ribs 311 protrudes more than the portion without reinforcing ribs 311. The electrical component 40 is installed within the installation space and connected to the portion of the compartment 31 with reinforcing ribs 311. The portion of the inner surface of the compartment 31 with reinforcing ribs 311 has higher strength, and the reinforcing ribs 311 enhance the strength of the compartment 31. The installation of the electrical component 40 on the portion of the compartment 31 with reinforcing ribs 311 reduces the deformation of the compartment 31 under stress.

[0057] Optionally, the reinforcing rib 311 can be formed by stamping, which is convenient, quick, and can reduce costs. Of course, in some other embodiments, the forming method of the reinforcing rib 311 is not limited. For example, the rib can also be welded to the inner surface of the compartment body 31 to form the reinforcing rib 311.

[0058] In some embodiments, see further reference. Figure 5 The housing 31 includes a base plate 312 and side plates 313 surrounding the base plate 312. The side plates 313 extend along a first direction X and together with the base plate 312 form a mounting cavity. Reinforcing ribs 311 protrude from the base plate 312 along the first direction X. The maintenance cover 32 is detachably connected to the end of the side plate 313 that is not connected to the base plate 312. By providing the housing 31 with a base plate 312 and side plates 313, the installation of the housing 31 and the maintenance cover 32 is facilitated, as is the installation and fixing of the various electrical components 40. Furthermore, the mounting cavity formed by the base plate 312 and the side plates 313 also serves to accommodate and protect the electrical components 40.

[0059] It is conceivable that in other embodiments, the structure of the compartment 31 is not limited, and the compartment 31 can be configured to form an installation space with the maintenance cover 32 and to install electrical components 40.

[0060] In some specific embodiments, the compartment body 31 is welded to the first sidewall 11, and the maintenance cover 32 is detachably connected to the first sidewall 11. Specifically, the side plate 313 of the compartment body 31 is welded to the second surface of the first sidewall 11 away from the first surface 112, or the side plate 313 of the compartment body 31 is welded to the groove wall of the mounting groove 111. The maintenance cover 32 is installed on the first surface 112 of the first sidewall 11 and is secured by a second fastener 160 (see...). Figure 3 The maintenance cover 32 is detachably connected to the first side wall 11, thereby achieving a detachable connection between the maintenance cover 32 and the compartment 31. Optionally, the second fastener 160 is a bolt, and a second embedded nut is provided on the first side wall 11. The bolt passes through the maintenance cover 32 and is threadedly connected to the second embedded nut to fix the maintenance cover 32 to the first side wall 11.

[0061] Continue reading Figure 3 A sealing gasket 90 is provided between the maintenance cover 32 and the first side wall 11 to ensure a sealing effect and protect the electrical components 40 inside the electrical compartment 30.

[0062] It is understood that in some other specific embodiments, the connection method between the compartment body 31 and the maintenance cover 32 is not limited. For example, the maintenance cover 32 can also be directly connected to the compartment body 31, the compartment body 31 can also be fixed to the first side wall 11 by fasteners, and the maintenance cover 32 can be detachably connected to the compartment body 31 by snapping it with the first side wall 11.

[0063] In some embodiments, see further reference. Figure 5 and Figure 6 The reinforcing rib 311 includes a reinforcing body 3111 and a protrusion 3112. The reinforcing body 3111 extends along the second direction Y, and the protrusion 3112 protrudes along the third direction Z from at least one side of the reinforcing body 3111. The protrusion 3112 is used to weld a first fastener 150, which fixes the electrical component 40 to the housing 31. The third direction Z is the height direction of the housing 10.

[0064] The above configuration has two advantages. First, the reinforcing rib 311 includes a reinforcing body 3111 and a protrusion 3112. The reinforcing body 3111 extends along the second direction Y, which has a better reinforcing effect. The protrusion 3112 is integrally formed with the reinforcing body 3111 and constitutes a local reinforcing rib itself, which significantly improves the rigidity and bending resistance of the chamber body 311. Second, the protrusion 3112 is also easy to punch holes in, so that the first fastener 150 can pass through. Compared with punching holes in the reinforcing body 3111, which reduces the rigidity of the reinforcing body 3111 and causes it to deform, resulting in the entire reinforcing rib 311 forming a wavy deformation and reducing its overall flatness, which is not conducive to the installation of electrical components, punching holes in the protrusion 3112 has almost no impact on the continuous cross section of the reinforcing body, since the protrusion 3112 protrudes from the reinforcing body 3111. It will not reduce its flatness or affect its overall rigidity. At the same time, it also helps to reduce the impact on the reinforcing body 3111 when the first fastener 150 is welded to the protrusion 3112, reduce the amount of deformation of the reinforcing body 3111 caused by welding, and thus ensure the connection reliability of the electrical component 40.

[0065] Optionally, the first fastener 150 is a fastening screw.

[0066] In some embodiments, all first fasteners 150 are welded to the protrusions 3112, and one first fastener 150 is welded to each protrusion 3112. In other embodiments, some first fasteners 150 are welded to the protrusions 3112, and the remaining first fasteners 150 are welded to the reinforcing body 3111. One or more first fasteners 150 can be welded to each reinforcing body 3111. Specifically, positioning holes (not marked) can be provided on the protrusions 3112. The first fasteners 150 can first pass through the positioning holes and be positioned in a fixed position on the chamber 311, and then the first fasteners 150 are welded to the protrusions 3112. This facilitates improved welding position accuracy and increases welding efficiency.

[0067] Furthermore, the inner surface of the compartment 31 has multiple reinforcing ribs 311, which are spaced apart along the third direction Z. At least one electrical component 40 is fixed to two reinforcing ribs 311 spaced apart by at least one reinforcing rib 311. That is, at least one electrical component 40 is fixed to two non-adjacent reinforcing ribs 311. See also some specific embodiments. Figure 3 , Figure 5 and Figure 6 The inner surface of the compartment 31 has four reinforcing ribs 311. The battery 100 includes electrical components 40 such as a fuse electrical component 40a, a battery monitoring system 40b, a battery management unit 40c, and a cell monitoring unit 40d. The battery monitoring system 40b and the battery management unit 40c are both connected to… Figure 5The first and third reinforcing ribs 311 from top to bottom are connected, the cell monitoring unit 40d is connected to the second and fourth reinforcing ribs 311, and the fuse electrical component 40a is connected to the fourth reinforcing rib 311. The fuse electrical component 40a's fuse 41 melts when the current is too high to protect the entire battery pack. The battery monitoring system 40b is mainly used to monitor key parameters such as voltage, current, and temperature of the battery 100 in real time to ensure safe battery operation. The battery management unit 40c is the basic monitoring unit in the battery management system (BMS), mainly responsible for real-time parameter monitoring and equalization management of individual battery cells or battery packs. The cell monitoring unit 40d is responsible for monitoring key parameters such as voltage, temperature, and current of the individual battery cells included in the battery module 20.

[0068] By setting at least one electrical component 40 to be fixed on two reinforcing ribs 311 spaced apart by at least one reinforcing rib 311, compared to the case where the electrical component 40 is fixed on one reinforcing rib 311 or on two adjacent reinforcing ribs 311, the excessive local stress concentration of the silo body 31 can be avoided, thereby reducing the stress deformation of the silo body 31.

[0069] Continue reading Figure 5 At least two adjacent reinforcing ribs 311 have protrusions 3112 at their ends protruding towards each other along the third direction Z. The protrusions 3112 on the side of the two adjacent reinforcing ribs 311 that are close to each other are offset along the third direction Z, so that the connecting groove 315 formed between the portions of the two adjacent reinforcing ribs 311 with protrusions 3112 is S-shaped. That is, two adjacent reinforcing ribs 311 have protrusions 3112 on the side protruding towards each other along the third direction Z, and two protrusions 3112 that are adjacent along the second direction Y and located on different reinforcing ribs 311 are offset along the third direction Z to form an S-shaped connecting groove 315. The two protrusions 3112 corresponding to the S-shaped connecting groove 315 are used to fix different electrical components 40. The bending shape of the S-shaped connecting groove 315 can form a physical isolation zone between adjacent electrical components 40, preventing collisions or interference when the two electrical components 40 are displaced due to vibration, thermal expansion and contraction. Meanwhile, the S-shaped connecting groove 315 is formed by the staggered protrusions 3112 of adjacent reinforcing ribs 311. This staggered layout can create independent and compact fixing points for two different electrical components 40 within a limited third-direction Z space, which can reduce the installation distance between the two electrical components 40 in the second direction Y, and achieve compact installation of more electrical components 40. In addition, the S-shaped connecting groove 315 can also improve structural strength, decompose concentrated loads into multiple bending segments, reduce peak stress, and avoid stress concentration.

[0070] The above configuration has two advantages. First, the protrusions 3112 of two adjacent reinforcing ribs 311 are staggered along the third direction Z, which makes the reinforcing bodies 3111 of the two adjacent reinforcing ribs 311 closer together in the third direction Z. With a fixed size in the third direction Z, the hopper 31 can form more reinforcing ribs 311, thereby improving the reinforcement effect. Second, the S-shaped connecting groove 315 facilitates the stamping of the reinforcing ribs 311. The two corresponding protrusions 3112 are used to fix different electrical components 40, so as to avoid stress concentration caused by fixing the same electrical component 40 with the two corresponding protrusions 3112, thereby preventing the hopper 31 from deforming under stress.

[0071] In some embodiments, see Figure 7 The first fastener 150 extends from the outside of the housing 31 away from the installation space, passes through the protrusion 3112, and protrudes into the housing 31. The portion of the first fastener 150 protruding into the housing 31 passes sequentially through the electrical component 40 and the grounding terminal 140, thus fixing the electrical component 40 and the grounding terminal 140 to the housing 31. In this way, the first fastener 150 not only fixes the electrical component 40 but also serves to fix the grounding terminal 140, avoiding the need for a separate fastener to fix the grounding terminal 140 and ensuring the compactness of the structure.

[0072] Specifically, the first fastener 150 passes through the battery management unit 40c and the grounding terminal 140 to secure both to the housing 31. It should be noted that the grounding terminal 140 is used to reliably connect the grounded portion of the battery 100 (such as the metal casing of the electrical compartment, the housing of high-voltage components, etc.) to the vehicle's grounding system, establishing a safe and redundant current discharge path. In other words, connecting the battery housing 100 to the vehicle's grounding system ensures that both remain at the same potential, preventing the battery housing from becoming energized due to leakage, induction, or insulation failure, thus endangering personnel safety. (See also...) Figure 7 The battery management unit 40c includes a protruding mounting base (not identified), and a grounding terminal 140 is provided with a bend (not identified) to be fitted and limited to the two surfaces of the mounting base by means of the bend. A first fastener 150 passes through one surface of the mounting base and the grounding terminal 140 to install and fix the grounding terminal 140 on the mounting base, thereby improving installation efficiency.

[0073] In some embodiments, see further reference. Figure 5One end of the reinforcing rib 311 near the bottom of the housing 10 forms a spacer section. That is, there is a reinforcing rib 311 near the bottom of the housing 10. One end of the reinforcing rib 311 forms two spacer-separated parts. The space between these two parts and the adjacent upper reinforcing rib 311 forms a receiving space 316, which is used to accommodate the electrical safety component 40a. The electrical compartment 30 has a first opening 33 in the compartment wall near the bottom of the housing 10. Specifically, the first opening 33 is opened on the side plate 313 of the compartment 31. The first opening 33 corresponds to and connects to the receiving space 316. The first opening 33 allows the connecting bar to pass through to connect with the electrical safety component 40a.

[0074] The above configuration serves two purposes: firstly, the accommodating space 316 facilitates the installation of the fuse electrical component 40a; secondly, the electrical compartment 30 has a first opening 33 on its wall near the bottom of the housing 10, through which the connecting bar passes to connect with the fuse electrical component 40a. The first opening 33 and the accommodating space 316 are located close to the output end of the main positive electrode of the battery module 20, which shortens the connection distance between the connecting bar and the fuse electrical component 40a, saving the connecting bar and the space required to arrange it.

[0075] Continue to refer to Figure 6 and Figure 8 The connection bar connected to the electrical component 40a includes a first conductive bar 52 and a second conductive bar 53. The first conductive bar 52 is electrically connected to the total positive electrode output terminal of the battery module 20, and the second conductive bar 53 is electrically connected to the total positive connector 110a of the battery 100 for connection with an external structure.

[0076] See Figure 8 The battery 100 also includes a third conductive bus 54 and a fourth conductive bus 55. The battery monitoring system 40b is located above the fuse electrical component 40a along the third direction Z. Both the third conductive bus 54 and the fourth conductive bus 55 are connected to the battery monitoring system 40b. The third conductive bus 54 is electrically connected to the total negative terminal output terminal of the battery module 20, and the fourth conductive bus 55 is electrically connected to the total negative connector 110b of the battery 100 for connection to external structures. The fuse electrical component 40a and the battery monitoring system 40b cooperate to form a complete high-voltage positive and negative input / output channel.

[0077] In some embodiments, see Figure 9 and Figure 10The electrical component 40a includes a fuse 41 and a bracket 42 for mounting the fuse 41. The bracket 42 includes a heat dissipation portion 421 and two mounting portions 422. The two mounting portions 422 are respectively connected to both sides of the heat dissipation portion 421 along the second direction Y, and are respectively connected to two spaced-apart portions of the interval segment. Both mounting portions 422 have mounting surfaces 4221 on the same side away from the compartment 31 in the first direction X. At least a portion of the heat dissipation portion 421 is recessed relative to the two mounting surfaces 4221 to form a receiving groove 423. That is, the heat dissipation portion 421 located between the two mounting portions 422 has a recessed portion lower than the two mounting surfaces 4221, so that the receiving groove 423 is formed on the heat dissipation portion 421 or the heat dissipation portion 421 and the two mounting portions 422 together form a receiving groove 42313. Specifically, the two mounting surfaces 4221 are flush. The fuse 41 includes two ends 411 and a middle portion 412 connecting the two ends 411. The two ends 411 are respectively mounted on two mounting surfaces 4221, and the middle portion 412 is received in a receiving groove 423. This ensures that the two ends 411 of the fuse 41 can be stably mounted on the same horizontal plane, avoiding uneven force on the ends due to the height difference of the mounting surfaces 4221, and thus preventing gaps or loose connections between the ends 411 and the mounting surfaces 4221. At the same time, since the two mounting portions 422 are directly connected to the heat dissipation portion 421, the heat generated by the ends 411 after they are mounted on the mounting surfaces 4221 can also be transferred to the heat dissipation portion 421 through the mounting portions 422, forming a dual heat dissipation path of "middle + ends". Compared with a single heat dissipation method, this design can improve the overall heat dissipation efficiency by more than 40%, effectively preventing the performance degradation or abnormal melting of the fuse 41 due to overheating, and adapting to the long-term operation requirements of high-power circuit scenarios.

[0078] Furthermore, the heat dissipation section 421 has a heat dissipation hole 4211 through it, which is connected to the receiving groove 423. Since the middle part 412 of the fuse 41 is housed in the receiving groove 423, the heat generated after the fuse 41 melts due to excessive current can flow through the receiving groove 423 to the heat dissipation hole 4211, and then dissipate from the heat dissipation hole 4211 to the gap between the support 42 and the compartment 31, reducing the heat transfer to other electrical components 40 in the electrical compartment 30 and ensuring the safety of the electrical components 40.

[0079] Furthermore, the middle portion 412 has a cylindrical structure, and the end portion 411 has a plate-like structure. The inner surface of the portion of the receiving groove 423 formed in the heat dissipation section 421 is shaped as an arc around an axis extending along the second direction Y, to match the outer peripheral surface shape of the middle portion 412 of the fuse 41. Thus, the shape of the receiving groove 423 perfectly matches the shape of the middle portion 412 of the fuse 41, facilitating the installation and positioning of the fuse 41.

[0080] See Figure 11and Figure 12 Each mounting portion 422 has a first embedded nut 43. The fuse electrical component 40a also includes a fixing bolt 44, which passes through the end 411 and is screwed to the first embedded nut 43 to fix the corresponding end 411 and the mounting portion 422, thereby ensuring the installation and fixation effect of the fuse 41 and the bracket 42. It is conceivable that in some other embodiments, the end 411 of the fuse 41 can also be connected to the mounting portion 422 in other ways, such as by snap-fit, etc., which is not limited here.

[0081] Further reading Figure 13 The first conductive busbar 52 and the second conductive busbar 53 are respectively connected to the two ends 411 of the fuse 41. The two fixing bolts 44 can also be respectively inserted into the first conductive busbar 52 and the second conductive busbar 53. While realizing the connection between the two ends 411 and their corresponding mounting parts 422, the first conductive busbar 52 and the second conductive busbar 53 can also be connected to the corresponding mounting bases 422.

[0082] Furthermore, the heat dissipation part 421 has a grid-like structure, thus making the heat dissipation holes 4211 grid holes to ensure heat dissipation effect. It is conceivable that in some other embodiments, the shape of the heat dissipation part 421 is not limited.

[0083] See Figure 12 A heat dissipation gap 45 is provided between the middle part 412 and the wall of the receiving groove 423. The presence of the heat dissipation gap 45 can also prevent the middle part 412 of the fuse 41 from being too close to the wall of the receiving groove 42313, which would cause the bracket 42 to deform due to heat, thereby protecting the entire fuse electrical component 40a.

[0084] Optionally, the heat dissipation gap 45 can be about 1mm. This ensures effective heat dissipation while preventing the middle part 412 of the fuse 41 from being too far from the wall of the receiving groove 423, thus reducing the space occupied by the electrical component 40a. It is conceivable that in some other embodiments, the size of the heat dissipation gap 45 is not specifically limited and can be selected according to needs.

[0085] In some embodiments, see further reference. Figure 10The bracket 42 also includes a first reinforcing plate 424, which protrudes along a first direction X on one side of the mounting portion 422. Two first reinforcing plates 424 are arranged opposite each other along a second direction Y and are respectively located on the outer side of the mounting surface 4221. The first reinforcing plate 424 is used to limit the end of its corresponding end 411 away from the middle portion 412. That is, each mounting portion 422 has a first reinforcing plate 424, which protrudes from the mounting surface 4221 and is located on the side of its corresponding mounting surface 4221 away from the other mounting surface 4221. On the one hand, the first reinforcing plate 424 increases the structural strength of the bracket 42, preventing the bracket 42 from becoming deformed due to insufficient strength caused by the opening of the heat dissipation hole 4211. On the other hand, since the fuse 41 needs to be installed between the two first reinforcing plates 424, the two first reinforcing plates 424 also play a certain positioning role when installing the fuse 41, which facilitates the installation of the fuse 41. After the fuse 41 is installed, the first reinforcing plates 424 also play a limiting role for the fuse 41, which can reduce the displacement of the fuse 41.

[0086] Furthermore, the bracket 42 also includes a second reinforcing plate 425, which protrudes along the first direction X on the side of the heat dissipation portion 421 near the middle portion 412, and is also provided on at least one side along the third direction Z to limit the middle portion 412. In some embodiments, the heat dissipation portion 421 has second reinforcing plates 425 on both sides along the third direction Z. In other embodiments, the heat dissipation portion 421 has a second reinforcing plate 425 on one side along the first direction X.

[0087] The above-mentioned configuration serves two purposes. First, the second reinforcing plate 425 enhances the structural strength of the bracket 42, preventing the bracket 42 from becoming deformed due to insufficient strength caused by the heat dissipation holes 4211. Second, the second reinforcing plate 425 also limits the middle part 412 of the fuse 41, reducing the displacement of the fuse 41.

[0088] It should be noted that the two mounting parts 422, the heat dissipation part 421, the first reinforcing plate 424 and the second reinforcing plate 425 work together to form a semi-enclosed structure around the fuse 41, which improves the structural strength and provides better limiting effect for the fuse 41.

[0089] In some embodiments, see Figure 14Each mounting part 422 has a connecting surface 4222 on the side away from the mounting surface 4221 in the first direction X. The connecting surface 4222 connects the bracket 42 to the reinforcing rib 311 of the housing 31. The heat dissipation part 421 is recessed between the two connecting surfaces 4222 along the first direction X. The connecting surface 4222 facilitates the mounting of the bracket 42 onto the housing 31. Since the heat dissipation part 421 is recessed between the two connecting surfaces 4222, a gap is formed between the heat dissipation part 421 and the housing 31, which can promote the effective dissipation of heat when the fuse 41 blows, and prevent heat from being transferred to other electrical components 40 through the housing 31.

[0090] Furthermore, each mounting portion 422 is provided with a mounting hole 4223 for the first fastener 150 to pass through, the mounting hole 4223 being used to connect the mounting portion 422 to the first fastener 150. By providing the mounting hole 4223 on the mounting portion 422, the connection between the bracket 42 and the reinforcing rib 311 is facilitated. In some embodiments, see further... Figure 5 and Figure 8 and see Figure 15 The battery 100 also includes a wiring harness 51. A wiring harness opening 314 is provided on the wall of the compartment 31 near the top of the housing 10. The battery 100 also includes a retaining sleeve 60 disposed within the housing 10. The retaining sleeve 60 is installed on the compartment 31 and blocks the wiring harness opening 314. The wiring harness 51 passes through the retaining sleeve 60 to connect the battery module 20 and at least some of the electrical components 40. Optionally, the wiring harness opening 314 is located at the top of the side panel 313 of the compartment 31.

[0091] The wiring harness opening 314 facilitates the passage of the wiring harness 51 to achieve electrical connection between the battery module 20 and the electrical component 40. Since the wiring harness opening 314 is located on the wall of the compartment 31 near the top of the housing 10, the integrated wiring harness 51 runs along the top opening 314, achieving a relatively compact routing. The wiring harness 51 does not significantly occupy the internal space of the electrical compartment 30, improving the overall integration of the wiring harness 51. The retaining sleeve 60 not only limits the position of the wiring harness 51, but also seals the wiring harness opening 314, preventing the expanding foam used to fix the battery module 20 from entering the electrical compartment 30 through the wiring harness opening 314, thus ensuring the safety of the electrical component 40.

[0092] See Figure 16 The battery 100 also includes a wire harness cable tie 80, which is connected to the housing 10 and used to bind and limit the wire harness 51 to prevent it from moving around. The electrical compartment 30 may also be equipped with a wire harness cable tie 80 to limit the position of the wire harness 51 within the electrical compartment 30 and prevent it from moving around.

[0093] In some embodiments, see further reference. Figure 15 and Figure 16The battery 100 also includes a protective seat 70 disposed within the housing 10. The protective seat 70 includes a blocking part 71 and a wire-passing part 72 that are connected to each other and bent. The wire-passing part 72 is disposed on the adhesive-limiting sleeve 60 and has a wire-passing hole 721 for the wire harness 51 to pass through. The end of the blocking part 71 away from the wire-passing part 72 abuts against the compartment wall of the housing 31 near the top of the housing 10 to prevent adhesive from flowing to the adhesive-limiting sleeve 60. Specifically, when the wire harness opening 314 is disposed on the side plate 313 of the housing 31, the wire-passing part 72 is disposed above the side plate 313, the adhesive-limiting sleeve 60 is located between the side plate 313 and the wire-passing part 72, the blocking part 71 and the wire-passing part 72 are bent, and the end of the blocking part 71 away from the wire-passing part 72 abuts against the side plate 313. By providing a protective base 70, it is possible to further prevent the foam used to fix the battery module 20 from entering the electrical compartment 30 through the wiring harness opening 314 after it foams, thus ensuring the safety of the electrical components 40.

[0094] The wire guide section 72 may also be provided with a wire harness cable tie 80 to fix and organize the wire harness 51.

[0095] Optionally, there is still a gap between the electrical compartment 30 and the battery module 20. The gap can be filled by adding a filler 120, and the glue baffle 130 can be bonded to support the glue baffle 130 and prevent glue from entering the electrical compartment 30. The filler 120 can be foam to reduce the overall glue usage and improve the overall lightweighting of the package.

[0096] In some embodiments, see further reference. Figure 1 The housing 10 has a second sidewall 12 at one end along the second direction Y, and a connector 110 for electrical connection with the battery module 20 or electrical component 40 is mounted on the second sidewall 12. (See reference...) Figure 17 The battery 100 also includes a filler 120 and a baffle plate 130. The filler 120 is disposed along the second direction Y between the battery module 20 and the second sidewall 12, and the baffle plate 130 is disposed between the filler 120 and the battery module 20. The filler 120 can fill the gap between the battery module 20 and the second sidewall 12, providing a certain buffer protection for the battery module 20. The baffle plate 130, disposed between the filler 120 and the battery module 20, can prevent the foamed adhesive from flowing towards the connector 110.

[0097] Another embodiment of this application provides an electrical device including the battery 100 described above. Since the battery 100 has beneficial effects, the electrical device including the battery 100 has the same beneficial effects, which will not be described in detail here.

[0098] Optionally, the electrical device is a vehicle, which can be a gasoline vehicle, a natural gas vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended vehicles, etc.

[0099] It is worth noting that, for pure electric vehicles, the aforementioned battery 100 can serve as a driving power source, thereby replacing fossil fuels to provide driving power.

[0100] In other embodiments, the type of electrical device is not limited. For example, the electrical device can also be a ship, spacecraft, electric toy, power tool, energy storage device, amusement equipment, elevator, and lifting equipment, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, or electric airplane toys, etc.; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.; energy storage devices can be energy storage walls, base station energy storage, container energy storage, etc.; amusement equipment can be a carousel, a drop tower, etc. This application does not impose any special limitations on the above-mentioned electrical devices.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery, characterized in that, include: The box (10) includes a first sidewall (11) extending along a second direction (Y), the first sidewall (11) being located at one end of the box (10) along a first direction (X); the first direction (X) is the width direction of the box (10), and the second direction (Y) is the length direction of the box (10); The battery module (20) is installed inside the housing (10); An electrical compartment (30) is disposed on the first side wall (11). The electrical compartment (30) includes a compartment body (31) and a maintenance cover (32). The maintenance cover (32) is detachably connected to the compartment body (31) and an installation space is formed between them. At least a portion of the compartment body (31) is located on the first side wall (11) and is recessed along the first direction (X) towards the side of the battery module (20). The inner surface of the compartment body (31) is provided with reinforcing ribs (311). Electrical components (40) are located within the installation space and connected to the portion of the housing (31) having the reinforcing ribs (311).

2. The battery according to claim 1, characterized in that, The reinforcing rib (311) includes a reinforcing body (3111) and a protrusion (3112). The reinforcing body (3111) extends along the second direction (Y), and the protrusion (3112) protrudes along the third direction (Z) from at least one side of the reinforcing body (3111). The protrusion (3112) is used to weld a first fastener (150), and the first fastener (150) fixes the electrical component (40) to the chamber body (31). The third direction (Z) is the height direction of the box (10).

3. The battery according to claim 2, characterized in that, Multiple reinforcing ribs (311) are spaced apart along the third direction (Z), and at least one electrical component (40) is fixed on two reinforcing ribs (311) spaced apart by at least one reinforcing rib (311). At least two adjacent reinforcing ribs (311) have protrusions (3112) on the side of each other along the third direction (Z). The protrusions (3112) on the side of each adjacent reinforcing ribs (311) are misaligned along the third direction (Z) so that the connecting groove (315) formed between the portions of the protrusions (3112) on the adjacent reinforcing ribs (311) is S-shaped. The two protrusions (3112) corresponding to the S-shaped connecting groove (315) are used to fix different electrical components (40).

4. The battery according to claim 2, characterized in that, The first fastener (150) passes through the protrusion (3112) from the outside of the housing (31) away from the installation space and protrudes into the housing (31). The part of the first fastener (150) protruding into the housing (31) passes through the electrical component (40) and the grounding terminal (140) in sequence. The first fastener (150) fixes the electrical component (40) and the grounding terminal (140) to the housing (31).

5. The battery according to claim 2, characterized in that, One end of the reinforcing rib (311) near the bottom of the housing forms a gap section, and a receiving space (316) is formed between the gap section and the adjacent reinforcing rib (311) for accommodating the fuse electrical component (40a); the electrical compartment (30) has a first opening (33) on the compartment wall near the bottom of the housing, the first opening (33) correspondingly connects to the receiving space (316), and the first opening (33) allows the connecting bar to pass through to connect with the fuse electrical component (40a).

6. The battery according to claim 5, characterized in that, The electrical safety component (40a) includes a fuse (41) and a bracket (42) for mounting the fuse (41). The bracket (42) includes a heat dissipation portion (421) and two mounting portions (422) connected to the portion of the housing (31) having the reinforcing rib (311). The two mounting portions (422) are respectively connected to the heat dissipation portion (421) on both sides along the second direction (Y). The two mounting portions (422) each have a mounting surface (4221) on the same side away from the housing (31) in the first direction (X). At least a portion of the heat dissipation portion (421) is recessed relative to the two mounting surfaces (4221) to form a receiving groove (423); The fuse (41) includes two ends (411) and a middle portion (412) connecting the two ends (411). The two ends (411) are respectively mounted on the two mounting surfaces (4221), and the middle portion (412) is received in the receiving groove (423).

7. The battery according to claim 6, characterized in that, Each of the mounting portions (422) has a connecting surface (4222) on the other side of the first direction (X) that connects with the housing (31), and the heat dissipation portion (421) is recessed in each of the connecting surfaces (4222).

8. The battery according to claim 1, characterized in that, The battery also includes a wiring harness (51), and the compartment (31) has a wiring harness opening (314) on the compartment wall near the top of the box (10); The battery also includes a retaining sleeve (60) disposed inside the housing (10). The retaining sleeve (60) is installed on the compartment (31) and blocks the wiring harness opening (314). The wiring harness (51) passes through the retaining sleeve (60) to connect the battery module (20) and at least part of the electrical components (40).

9. The battery according to claim 8, characterized in that, The battery also includes a protective seat (70) disposed inside the housing (10). The protective seat (70) includes a blocking part (71) and a wire passing part (72) that are connected to each other and bent. The wire passing part (72) is disposed on the adhesive limiting sleeve (60) and has a wire passing hole (721) through which the wire harness (51) passes. One end of the blocking part (71) away from the wire passing part (72) abuts against the wall of the compartment (31) near the top of the housing (10) to prevent the adhesive from flowing to the adhesive limiting sleeve (60).

10. An electrical device, characterized in that, Includes the battery as described in any one of claims 1-9.

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