Battery device and electric device

Abstract

The utility model is suitable for the technical field of batteries, and provides a battery device and a power utilization device. A battery cell accommodated in the case; the electronic control component is contained in the box body and comprises a first shell and an electronic device arranged in the first shell, the first shell is connected to the box body, a cavity is formed in the first shell, an electric connection structure is contained in the cavity, the electronic device is contained in the cavity and electrically connected to the electric connection structure, and a glue structure is arranged between the electronic device and the first shell. The glue structure is used for bonding the electronic device to the first shell; according to the battery device provided by the embodiment of the invention, the electronic device is adhered to the first shell of the electric control part, and the electronic device is electrically connected with the electric connection structure, so that the connection stability between the electronic device and the first shell and between the electronic device and the electric connection structure is improved.

Description

Technical Field

[0001] This application belongs to the field of battery technology, and in particular relates to a battery device and an electrical device. Background Technology

[0002] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery device applications, market demand is also constantly increasing.

[0003] In battery devices, the high-voltage box plays a crucial role as a power distribution and management device. In current high-voltage boxes, electronic components (such as relays) are usually fixed to the high-voltage box housing with bolts, resulting in poor connection stability and a risk of disengagement when the high-voltage box is subjected to vibration or other factors. Utility Model Content

[0004] In view of the above problems, this application provides a battery device that can alleviate the problem of poor connection stability of electronic components in current high-voltage boxes.

[0005] In a first aspect, embodiments of this application provide a battery device, comprising:

[0006] A housing; a battery cell housed within the housing; an electronic control component housed within the housing, the electronic control component including a first housing and electronic devices disposed within the first housing, the first housing being connected to the housing, the first housing having a cavity containing an electrical connection structure for electrical connection with the battery cell, the electronic devices being housed within the cavity and electrically connected to the electrical connection structure, and an adhesive structure between the electronic devices and the first housing for bonding the electronic devices to the first housing.

[0007] In this embodiment, the electronic device is bonded to the first housing of the electronic control component, and the electronic device is electrically connected to the electrical connection structure to improve the connection stability between the electronic device and the first housing, and between the electronic device and the electrical connection structure.

[0008] In some embodiments, at least a portion of the adhesive structure is a structure formed by curing liquid adhesive, and the adhesive structure fills at least a portion of the cavity.

[0009] The technical solution of this embodiment provides a specific method for bonding electronic devices to a first housing, wherein at least a portion of the adhesive structure is formed by curing liquid adhesive, so that the adhesive structure can fill at least a portion of the cavity, thereby bonding the electronic devices to the first housing through the adhesive structure and protecting the electronic devices through the adhesive structure.

[0010] In some embodiments, the electronic device includes a second housing, an adhesive structure bonded to the second housing, and the second housing bonded to a first housing; the electronic device also includes a functional element electrically connected to an electrical connection structure, the functional element being connected to the second housing, and at least a portion of the functional element being exposed outside the second housing.

[0011] In the technical solution of this embodiment, since the second housing is bonded to the first housing and does not need to be connected to the first housing by bolts or other mechanical structures, the first housing no longer needs to provide a foundation for the connection structure; accordingly, at least part of the functional element is located outside the second housing, that is, the size of the second housing is reduced, thereby reducing the space occupied by the electronic device and reducing the processing cost of the electronic device.

[0012] In some embodiments, the electronic device further includes a connection terminal connected to the second housing, at least a portion of which extends beyond the second housing and is connected to an electrical connection structure; in the height direction of the battery device, the electrical connection structure is located at the bottom of the cavity, at least a portion of the connection terminal extends below the second housing, and at least a portion of the functional element is located above the second housing.

[0013] In this embodiment, the connection terminals of the electronic device are positioned at the bottom, which means the electronic device is inverted. This utilizes gravity to improve the stability of the connection between the connection terminals and the electrical connection structure, and reduces the risk of the connection terminals detaching from the electrical connection structure.

[0014] In some embodiments, in the height direction of the battery device, the adhesive structure is located below the outer surface of the second housing connecting functional element; or, the adhesive structure is flush with the outer surface of the second housing connecting functional element.

[0015] In this embodiment, the adhesive structure is positioned below or flush with the outer surface of the functional element connected to the second housing to reduce the risk of the adhesive structure overflowing to the functional element, thereby reducing the risk of the adhesive structure damaging the electronic device.

[0016] In some embodiments, the second housing has a slot on the side facing the electrical connection structure, and the slot is located on the side of the connection terminal; the first housing has a rib that is accommodated in the cavity, and at least a portion of the rib is inserted into the slot.

[0017] In this embodiment, a slot is provided on the second housing, and a rib corresponding to the slot and capable of being inserted into the slot is provided on the first housing. This prevents the adhesive structure from overflowing between the connecting terminal and the electrical connection structure, thereby reducing the risk of the adhesive structure negatively affecting the electrical connection of the connecting terminal and the electrical connection structure.

[0018] In some embodiments, the second housing has a first baffle and a second baffle spaced apart at one end facing the electrical connection structure, and a groove is formed between the first baffle and the second baffle.

[0019] The technical solution of this embodiment provides some specific structures for the slot, and sets a first baffle and a second baffle at intervals so as to form a slot through the first baffle and the second baffle, and to prevent the glue structure from overflowing to the connection terminal through the first baffle and the second baffle.

[0020] In some embodiments, the first baffle is an annular structure with its ends connected, and the first baffle is arranged around the connecting terminal; the second baffle is an annular structure with its ends connected, and the second baffle is arranged around the connecting terminal.

[0021] In the technical solution of this embodiment, both the first baffle and the second baffle are annular structures surrounding the connecting terminal, so as to better prevent the adhesive structure from overflowing to the connecting terminal, thereby better reducing the risk of the adhesive structure causing negative impact on the electrical connection of the connecting terminal and the electrical connection structure.

[0022] In some embodiments, the first stop rib is located on the side of the second stop rib away from the connection terminal, and the height of the first stop rib is greater than or equal to the height of the second stop rib.

[0023] In the technical solution of this embodiment, the first baffle is located outside the second baffle, and the height of the first baffle is greater than or equal to the height of the second baffle, so as to prevent the overflow of the adhesive structure through the first baffle and make it difficult for the adhesive structure to overflow into the slot.

[0024] In some embodiments, the height of the raised rib is less than or equal to the height of the first retaining rib.

[0025] In the technical solution of this embodiment, the height of the protruding rib is less than or equal to the height of the first baffle. When the first baffle abuts against the first housing, the protruding rib can contact the second housing or there is a gap between the protruding rib and the second housing, so as to reduce the negative impact of the protruding rib on the first baffle abutting against the first housing, so that the first baffle can better abut against the first housing, thereby enabling the first baffle to better prevent the glue structure from overflowing into the slot, and further reducing the risk of the glue structure overflowing to the connection terminal.

[0026] In some embodiments, the width of the rib is less than or equal to the spacing between the first and second retaining ribs.

[0027] In the technical solution of this embodiment, the protruding rib can not only be inserted into the slot and cooperate with the slot, but also prevent the glue structure from overflowing. At this time, the first baffle, the protruding rib and the second baffle can form a bending path with multiple bends, making it more difficult for the glue structure to cross the first baffle, the protruding rib and the second baffle and overflow to the connection terminal.

[0028] In some embodiments, the first housing has a slot on the side facing the second housing; the second housing has a rib on the side facing the electrical connection structure, and at least a portion of the rib is inserted into the slot.

[0029] This embodiment provides other technical solutions to prevent the adhesive structure from overflowing to the connecting terminals. The slot is set on the first housing and the rib is set on the second housing. The rib is aligned with the slot and can be inserted into the slot. This prevents the adhesive structure from overflowing between the connecting terminals and the electrical connection structure, thereby reducing the risk of the adhesive structure causing negative impact on the electrical connection of the connecting terminals and the electrical connection structure.

[0030] In some embodiments, the electrical connection structure is provided with a connection hole, and at least a portion of the connection terminal is accommodated in the connection hole.

[0031] In this embodiment, a connection hole is provided on the electrical connection structure, and the connection terminal is inserted into the connection hole so that the connection terminal can be better connected to the electrical connection structure and the stability of the connection can be improved.

[0032] In some embodiments, the adhesive structure is an elastic structural member.

[0033] In the technical solution of this embodiment, the adhesive structure is made into an elastic structural component. When the electronic control component is subjected to a collision, the adhesive structure can absorb vibration energy to protect the electronic device and reduce the risk of damage to the electronic device.

[0034] Secondly, embodiments of this application also provide an electrical device, including the battery device provided in some embodiments of the first aspect.

[0035] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0038] Figure 2 This is an exploded structural diagram of a battery provided in some embodiments of this application;

[0039] Figure 3 This is an exploded structural diagram of a battery cell provided in some embodiments of this application;

[0040] Figure 4 A schematic diagram showing the installation position of the electrical control components inside the housing according to some embodiments of this application;

[0041] Figure 5 This is a perspective view of the electronic control component after removing the top cover, provided in some embodiments of this application;

[0042] Figure 6 This is a top view of the electronic control component after removing the top cover, provided in some embodiments of this application;

[0043] Figure 7 for Figure 6 Cross-sectional view at line AA;

[0044] Figure 8 for Figure 7 Enlarged view of part B in the middle Figure 1 ;

[0045] Figure 9 for Figure 7 Enlarged view of part B in the middle Figure 2 ;

[0046] Figure 10 A three-dimensional schematic diagram of an electronic device provided in some embodiments of this application;

[0047] Figure 11 This is a top view of the second housing after the top cover has been removed, as provided in some embodiments of this application;

[0048] Figure 12 for Figure 11 A cross-sectional view at the CC line.

[0049] The markings in the diagram mean:

[0050] 1000, vehicles;

[0051] 100. Battery device;

[0052] 10. Box; 11. First box; 12. Second box;

[0053] 20. Battery cell; 21. Casing; 22. End cap; 23. Electrode assembly; 24. Electrode terminal;

[0054] 30. Electrical control component; 31. First housing; 3101. Housing body; 3102. Top cover; 311. Cavity; 312. Rib; 32. Electronic device; 321. Second housing; 3211. Slot; 3212. First baffle; 3213. Second baffle; 322. Connecting terminal; 323. Functional element; 33. Electrical connection structure; 331. Connecting hole;

[0055] 200. Motor;

[0056] 300. Controller. Detailed Implementation

[0057] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0059] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0060] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0062] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0063] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0064] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0065] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0066] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0067] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery device applications, market demand is also constantly increasing.

[0068] In a battery device, the high-voltage box is used to distribute and manage electrical energy. It also has protection and control functions such as overcurrent protection, short circuit protection, and overload protection. The high-voltage box can also work with the battery management system to achieve functions such as voltage detection, current detection, and temperature monitoring. In other words, the high-voltage box plays a very important role in the battery device.

[0069] In current high-voltage boxes, electronic components such as relays are typically mechanically connected to the box housing using bolts or other fasteners. Taking a relay as an example, it usually has protruding, plate-like mounting feet through which bolts pass and connect to the high-voltage box housing, thus securing the relay. This connection method is susceptible to errors in the installation of the electronic components and the high-voltage box housing due to variations in manufacturing processes and installation techniques. Achieving a zero-clearance fit between the electronic components and the high-voltage box housing is difficult. Furthermore, when the battery device is subjected to impacts or vibrations, this connection method is prone to connection failures such as bolt loosening and cracking of the electronic component casing.

[0070] Based on the above considerations, in order to alleviate the problem of poor connection stability and easy connection failure of electronic components in current high-voltage boxes, this application provides a battery device that adhesively attaches electronic components to the first housing of the high-voltage box. In such a battery device, the electronic components can be stably connected to the first housing through adhesive bonding, thereby improving the connection stability between the electronic components and the first housing.

[0071] The battery device disclosed in this application can be used in electrical devices that use the battery device as a power source or in various energy storage systems that use the battery device as an energy storage element. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0072] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0073] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery is installed inside the vehicle 1000, and the battery can be located at the bottom, front, or rear of the vehicle 1000. The battery can be used to power the vehicle 1000; for example, the battery can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 300 and a motor 200. The controller 300 is used to control the battery to supply power to the motor 200, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0074] In some embodiments of this application, the battery can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0075] refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device 100 provided in some embodiments of this application. The battery device 100 mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells 20, which are connected in series, parallel, or mixed connection via a busbar.

[0076] In some embodiments, the battery cell assembly is typically formed by arranging a plurality of battery cells 20.

[0077] As an example, the battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells 20 into a single module. As an example, the battery module can be formed by bundling multiple battery cells 20 together with cable ties.

[0078] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 10 and one or more battery cell assemblies housed in the housing 10.

[0079] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the housing 10 by fixing the battery module in the housing 10.

[0080] As an example, the battery cell assembly can also be housed in the housing 10 by directly fixing multiple battery cells 20 to the housing 10.

[0081] As an example, the housing 10 may include a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are fastened together to form a closed space inside the housing 10 to house the battery cell assembly. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first housing 11 may be a top cover or a bottom plate.

[0082] As an example, the housing 10 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 10 forms an enclosed space to accommodate the battery cell assembly.

[0083] In some embodiments, the housing 10 may be part of the chassis structure of the vehicle 1000. For example, a portion of the housing 10 may be at least a portion of the floor of the vehicle 1000, or a portion of the housing 10 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000.

[0084] refer to Figure 3 , Figure 3 This is an exploded structural diagram of a battery cell 20 provided in some embodiments of this application. A battery cell 20 refers to the smallest unit that makes up a battery. As shown, the battery cell 20 includes an end cap 22, a housing 21, an electrode assembly 23, and other functional components.

[0085] End cap 22 refers to a component that covers the opening of housing 21 to isolate the internal environment of battery cell 20 from the external environment. The shape of end cap 22 can be adapted to the shape of housing 21 to fit it. Optionally, end cap 22 can be made of a material with certain hardness and strength (such as aluminum alloy), so that end cap 22 is less prone to deformation under pressure and impact, enabling battery cell 20 to have higher structural strength and improved safety performance. Functional components such as electrode terminals 24 can be provided on end cap 22. Electrode terminals 24 can be used for electrical connection with electrode assembly 23 for outputting or inputting electrical energy to battery cell 20. In some embodiments, end cap 22 can also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of battery cell 20 reaches a threshold. The material of end cap 22 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this. In some embodiments, an insulating element may also be provided on the inner side of the end cap 22. The insulating element can be used to isolate the electrical connection components inside the housing 21 from the end cap 22 to reduce the risk of short circuit. For example, the insulating element may be plastic, rubber, etc.

[0086] The outer casing 21 is a component used to cooperate with the end cap 22 to form the internal environment of the battery cell 20. This internal environment can accommodate the electrode assembly 23, electrolyte, and other components. The outer casing 21 and the end cap 22 can be independent components. An opening can be provided on the outer casing 21, and the end cap 22 can be used to close the opening to form the internal environment of the battery cell 20. Alternatively, the end cap 22 and the outer casing 21 can be integrated. Specifically, the end cap 22 and the outer casing 21 can form a common connecting surface before other components are inserted into the casing. When it is necessary to encapsulate the interior of the outer casing 21, the end cap 22 closes the outer casing 21. The outer casing 21 can be of various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the outer casing 21 can be determined according to the specific shape and size of the electrode assembly 23. The material of the outer casing 21 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This application embodiment does not impose any special limitations on this.

[0087] Electrode assembly 23 is the component in the battery cell 20 where the electrochemical reaction occurs. The casing 21 may contain one or more electrode assemblies 23. The electrode assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and typically a separator is provided between the positive and negative electrode sheets. The portions of the positive and negative electrode sheets containing active material constitute the main body of the electrode assembly 23, while the portions of the positive and negative electrode sheets without active material each constitute a tab. The positive and negative tabs may be located together at one end of the main body or separately at both ends of the main body. During the charging and discharging process of the battery, the positive and negative active materials react with the electrolyte, and the tabs connect to the electrode terminals 24 to form a current loop.

[0088] Firstly, reference Figures 4 to 7 This application provides a battery device 100, including a housing 10, a battery cell 20, and an electronic control component 30. The battery cell 20 is housed in the housing 10; the electronic control component 30 is also housed in the housing 10, and includes a first housing 31 and an electronic device 32 disposed within the first housing 31. The first housing 31 is connected to the housing 10, and a cavity 311 is provided within the first housing 31. The cavity 311 contains an electrical connection structure 33 for electrical connection with the battery cell 20. An adhesive structure is provided between the electronic device 32 and the first housing 31 for bonding the electronic device 32 to the first housing 31.

[0089] In the figure, the X-axis is the length direction of the battery device 100 and the width direction of the electronic control component 30; the Y-axis is the width direction of the battery device 100 and the length direction of the electronic control component 30; and the Z-axis is the height direction of the battery device 100.

[0090] The housing 10 refers to the structure in the battery device 100 that provides space for housing the battery cells 20 and other structures; the shape of the housing 10 can be prismatic, cylindrical or other shapes; the material of the housing 10 can include metal, plastic or other materials.

[0091] The accommodating space refers to the spatial structure within the housing 10 used to accommodate the battery cell 20 and other structures. The accommodating space is formed within the housing 10. The accommodating space can be a prism-shaped spatial structure, a cylindrical spatial structure, or other shapes of spatial structures. The shape of the accommodating space can also be set according to the shape of the housing 10.

[0092] A battery cell 20 refers to the smallest unit that makes up the battery device 100. The number of battery cells 20 can be one, two or more. When the number of battery cells 20 is at least two, the battery cells 20 can be connected in series, in parallel or in a mixed connection. The battery cells 20 can be arranged in one direction or in an array in two different directions. The battery cells 20 can be fixed and constrained by straps, plates or other structures. The battery cells 20 can also be directly placed in the housing space of the housing 10.

[0093] The electronic control component 30 refers to a device in the battery device 100 that has functions such as distributing electrical energy, controlling the state of the battery device 100, and collecting information. The electronic control component 30 may include components in the high-voltage box, battery management unit, and cell supervising circuit (CSC), and may also include devices such as fuses, relays, and sensors. When the electronic control component 30 can be a component in the battery management unit, the battery management unit can be directly connected to each battery cell 20 and monitor the voltage, temperature, and other status information of each battery cell 20 to ensure effective battery management, optimize the charging process through data analysis, extend battery life, and prevent potential dangers such as overcharging, over-discharging, short circuits, and overheating.

[0094] The electronic control component 30 is housed within the housing 10. The electronic control component 30 may be located in the same space as the battery cell 20 within the housing 10, or it may be located in a different space within the housing 10 from the battery cell 20. The electronic control component 30 may be directly connected to the housing 10 by screwing, bonding, snapping, or other means, or it may be indirectly connected to the housing 10 through an intermediate structure. For example, the electronic control component 30 is a high-voltage box.

[0095] The first housing 31 refers to the structure in the electronic control component 30 that provides a mounting base for other structures such as the electronic device 32. The first housing 31 can be a prism-shaped, cylindrical, or other shaped structural component. The material of the first housing 31 can include metal, plastic, or other materials.

[0096] Cavity 311 refers to the structure inside the first housing 31 used to accommodate electronic device 32. Cavity 311 can be a prism-shaped spatial structure, a cylindrical spatial structure, or a spatial structure of other shapes. Cavity 311 can be a spatial structure surrounded by structural components inside the first housing 31, or a spatial structure set inside the first housing 31. The number of cavities 311 can be one, two, or more.

[0097] Electronic device 32 refers to the device in the electronic control component 30 that performs functions such as switching, detection, and protection. Electronic device 32 may include relays, fuses, sensors, or other devices. Electronic device 32 is housed in cavity 311. A cavity 311 may house only one electronic device 32 or two or more electronic devices 32. For example, one electronic device 32 corresponds to one cavity 311.

[0098] Electrical connection structure 33 refers to the structural component in the electronic control component 30 used for electrical connection with electronic device 32. Electronic device 32 is electrically connected to electrical connection structure 33. Depending on the type of electronic device 32, electrical connection structure 33 may include copper busbar, cable, socket or other structural component. In addition to being electrically connected to electronic device 32, electrical connection structure 33 may also be electrically connected to battery cell 20 or other devices in battery device 100.

[0099] The electrical connection structure 33 can also be electrically connected to the battery cell 20 to transmit signals; the electrical connection structure 33 can be directly connected to the battery cell 20, or indirectly connected to the battery cell 20 through an intermediate structure.

[0100] An adhesive structure is provided between the electronic device 32 and the first housing 31 to bond the electronic device 32 to the first housing 31. The electronic device 32 and the first housing 31 can be connected by one or more small-area adhesive structures, or liquid adhesive can be poured into the cavity 311 and cured to form an adhesive structure, so that the electronic device 32 and the first housing 31 can be connected over a large area. The electronic device 32 can be bonded to the first housing 31 by curing liquid adhesive, or it can be directly bonded to the first housing 31 by solid adhesive.

[0101] The electronic device 32 is bonded to the first housing 31 to fix the electronic device 32 in the cavity 311. Compared with the structure of connecting the electronic device 32 to the first housing 31 by means of bolts or other connection methods, bonding the electronic device 32 to the first housing 31 enables the electronic device 32 to be more stably electrically connected to the electrical connection structure 33. When the electronic device 32 is bonded to the first housing 31, the electronic device 32 does not need to be connected to the first housing 31 by mechanical structures such as bolts.

[0102] When the battery device 100 is subjected to impacts, vibrations, or other adverse conditions, the adhesive structure can improve the connection stability between the electronic device 32 and the first housing 31.

[0103] The adhesive structure between the electronic device 32 and the first housing 31 can also provide protection for the electronic device 32, especially when the adhesive structure fills part of the cavity 311 and covers a large area of ​​the electronic device 32.

[0104] In this embodiment, the electronic device 32 is bonded to the first housing 31 of the electronic control component 30, and the electronic device 32 is electrically connected to the electrical connection structure 33 to improve the connection stability between the electronic device 32 and the first housing 31, and between the electronic device 32 and the electrical connection structure 33.

[0105] In some embodiments, electronic device 32 is a relay.

[0106] refer to Figure 4 In some embodiments, the first housing 31 may include a housing body 3101 and a top cover 3102 covering the housing body 3101. The housing body 3101 refers to the structure in the first housing 31 used to form an internal environment for housing the electronic device 32. A cavity 311 may be formed inside the housing body 3101, and the electronic device 32 may also be installed in the housing body 3101. The top cover 3102 refers to the structure that closes the housing body 3101 to isolate the internal environment of the electronic control component 30 from the external environment. The housing body 3101 and the top cover 3102 may be separate structures and connected by screws, snaps or other means, or the housing body 3101 and the top cover 3102 may be an integral structure.

[0107] In some embodiments, at least a portion of the adhesive structure is a structure formed by curing liquid adhesive, and the adhesive structure fills at least a portion of the cavity 311.

[0108] At least a portion of the adhesive structure may be a structure formed by curing liquid adhesive; that is, the adhesive structure may be a structure formed entirely by curing liquid adhesive, or a structure formed only partially by curing liquid adhesive. Liquid adhesive may include polyurethane adhesive, silicone adhesive, or other adhesives.

[0109] At least a portion of the space in the cavity 311 is filled with an adhesive structure that can fill the space between the electronic device 32 and the inner wall of the cavity 311 to bond the electronic device 32 to the inner wall of the cavity 311, thereby fixing the electronic device 32 in the cavity 311. The adhesive structure can fill only a portion of the space in the cavity 311 or completely fill the entire cavity 311.

[0110] When the adhesive structure fills part of the space in the cavity 311, since the adhesive structure is in a liquid state before curing, it can first fill the lower space of the cavity 311 along the direction of gravity. At the same time, the flowing liquid adhesive structure can also be located relatively evenly between the sides of the electronic device 32 and the corresponding inner walls of the cavity 311. After the liquid adhesive cures, the adhesive structure can be located between the sides of the electronic device 32 and the corresponding inner walls of the cavity 311 to better protect the electronic device 32. This can better reduce the damage that the electronic device 32 may suffer when the battery device 100 is subjected to collisions, vibrations, etc., and can better fix the electronic device 32, thereby improving the connection stability between the electronic device 32 and the electrical connection structure 33.

[0111] This embodiment provides a specific method for bonding some electronic devices 32 to the first housing 31. At least a portion of the space in the cavity 311 is filled with an adhesive structure to bond the electronic devices 32 to the first housing 31 through the adhesive structure; and the adhesive structure protects the electronic devices 32.

[0112] refer to Figures 5 to 7 In some embodiments, the electronic device 32 includes a second housing 321, to which an adhesive structure is bonded and to a first housing 31; the electronic device 32 also includes a functional element 323, which is connected to the second housing 321 and at least a portion of the functional element 323 is exposed outside the second housing 321.

[0113] The second housing 321 refers to the structure in the electronic device 32 that provides a mounting base for other structures of the electronic device 32. The second housing 321 can be a prismatic structure, a cylindrical structure, or a structure of other shapes. The material of the second housing 321 can include metal, plastic, or other materials.

[0114] When the electronic device 32 is bonded to the first housing 31, the second housing 321 is bonded to the first housing 31 to fix the electronic device 32 to the first housing 31. The second housing 321 may be bonded to the first housing 31 with only one side, or it may have multiple different sides bonded to different sides of the first housing 31 to improve the connection stability between the electronic device 32 and the first housing 31.

[0115] Functional element 323 refers to the device in electronic device 32 that changes state in response to changes in current. Functional element 323 may include coil, fusible inductor, winding or other inductor. Functional element 323 is connected to second housing 321. Functional element 323 may be directly connected to second housing 321 or indirectly connected to second housing 321 through intermediate structure.

[0116] For example, in the case where electronic device 32 is a relay, functional element 323 is a coil.

[0117] At least a portion of the functional element 323 is exposed outside the second housing 321. The functional element 323 may be located only partially outside the second housing 321 or completely outside the second housing 321. That is, the second housing 321 may only cover part of the functional element 323 or may not cover the functional element 323 at all.

[0118] When the functional element 323 is exposed outside the second housing 321, the height of the adhesive structure can be controlled to make it difficult for the adhesive structure to contact the functional element 323. Alternatively, an adhesive structure with less impact on the functional element 323 can be selected to reduce the negative impact that the adhesive structure may have on the functional element 323.

[0119] Since the electronic device 32 is connected to the first housing 31 by adhesive, the second housing 321 does not need to be provided with additional structures such as mounting feet that cooperate with the mechanical connection structure. The volume of the second housing 321 can be reduced accordingly to reduce the space occupied by the electronic device 32, reduce the weight of the electronic device 32, and reduce the processing cost of the electronic device 32.

[0120] In this embodiment, since the second housing 321 is bonded to the first housing 31 without needing to be connected to the first housing 31 by bolts or other mechanical structures, the first housing 31 no longer needs to provide a foundation for the connection structure. Accordingly, at least a portion of the functional element 323 is located outside the second housing 321, which reduces the size of the second housing 321, thereby reducing the space occupied by the electronic device 32 and reducing the processing cost of the electronic device 32.

[0121] refer to Figures 5 to 7 In some embodiments, the electronic device 32 further includes a connection terminal 322 connected to the second housing 321, at least a portion of the connection terminal 322 extending outside the second housing 321 and connected to the electrical connection structure 33; in the height direction of the battery device 100, the electrical connection structure 33 is located at the bottom of the cavity 311, at least a portion of the connection terminal 322 extends below the second housing 321, and at least a portion of the functional element 323 is located above the second housing 321.

[0122] The connection terminal 322 refers to the structure in the electronic device 32 used to connect to the electrical connection structure 33. The connection terminal 322 can be a prismatic structure, a cylindrical structure, or other shaped structural components. The connection terminal 322 is connected to the second housing 321. The connection terminal 322 can be connected to the second housing 321 by screwing, snapping, or other means. Depending on the type of electronic device 32, the number of connection terminals 322 can be one, two, or more.

[0123] At least a portion of the connecting terminal 322 extends outside the second housing 321, meaning the second housing 321 may be completely outside the second housing 321 or only partially outside the second housing 321, in which case the other portion of the connecting terminal 322 is inside the second housing 321; so that at least a portion of the connecting terminal 322 extends outside the second housing 321, so that the connecting terminal 322 can be electrically connected to the electrical connection structure 33.

[0124] The electrical connection structure 33 is located at the bottom of the cavity 311, that is, the electrical connection structure 33 is located at the bottom of the cavity 311 along its height direction Z. When the electronic control component 30 is installed in the housing 10, the electrical connection structure 33 is located at the bottom of the cavity 311 along the height direction Z of the battery device 100.

[0125] At least a portion of the connecting terminal 322 extends below the second housing 321 to facilitate connection between the connecting terminal 322 and the electrical connection structure 33. When the connecting terminal 322 is connected to the electrical connection structure 33, the second housing 321 is located above the electrical connection structure 33. In this case, in addition to the adhesive structure fixing the second housing 321, the connecting terminal 322 can also be better connected to the electrical connection structure 33 under the action of gravity.

[0126] At least a portion of the functional element 323 is located above the second housing 321. The functional element 323 may be completely located above the second housing 321 or only partially located above the second housing 321. In the case where a portion of the functional element 323 is located above the second housing 321, another portion of the functional element 323 is located inside the second housing 321.

[0127] When liquid adhesive is poured into cavity 311, the liquid adhesive first fills the bottom of cavity 311. At this time, the liquid adhesive can fix the connecting terminal 322 and the second housing 321 adjacent to the connecting terminal 322, so that the connecting terminal 322 can be more stably connected to the electrical connection structure 33. At the same time, before the liquid adhesive is poured, the electronic device 32 can be supported by the electrical connection structure 33 and is less likely to be tilted, thereby reducing the difficulty of fixing the electronic device 32. The poured liquid adhesive forms an adhesive structure after curing.

[0128] In this embodiment, the connection terminal 322 of the electronic device 32 is positioned at the bottom, which means that the electronic device 32 is inverted. This utilizes gravity to improve the stability of the connection between the connection terminal 322 and the electrical connection structure 33, and reduces the risk of the connection terminal 322 detaching from the electrical connection structure 33.

[0129] In some embodiments, in the height direction of the battery device 100, the adhesive structure is located below the outer surface of the second housing 321 connecting the functional element 323; or the adhesive structure is flush with the outer surface of the second housing 321 connecting the functional element 323.

[0130] The outer surface of the second housing 321 refers to the surface of the second housing 321 facing its external environment, that is, the surface of the second housing 321 facing the cavity 311. Since at least a portion of the functional element 323 extends outside the second housing 321, the outer surface of the second housing 321 connected to the functional element 323 refers to the outer surface of the second housing 321 corresponding to the functional element 323. When the functional element 323 is located above the second housing 321 in the height direction Z of the battery device 100, the outer surface of the second housing 321 connected to the functional element 323 is the outer surface of the second housing 321 at the upper end in the height direction Z of the battery device 100.

[0131] The adhesive structure is located below or flush with the outer surface of the second housing 321 connecting the functional element 323. That is, the height of the adhesive structure in the cavity 311 is less than the height of the outer surface of the second housing 321 connecting the functional element 323, so that the liquid adhesive structure is difficult to overflow to the top of the outer surface of the second housing 321 connecting the functional element 323.

[0132] Since at least a portion of the functional element 323 is located on the side of the second housing 321 away from the electrical connection structure 33, that is, at least a portion of the functional element 323 is located above the second housing 321 and exposed outside the second housing 321; accordingly, the adhesive structure does not exceed the outer surface of the second housing 321 connecting the functional element 323, so that the liquid adhesive structure is difficult to overflow into the functional element 323 or into the second housing 321, thereby reducing the risk of the adhesive structure causing damage to the functional element 323 and other structures.

[0133] In this embodiment, the adhesive structure is positioned below or flush with the outer surface of the second housing 321 connecting the functional element 323 to reduce the risk of liquid adhesive structure overflowing to the functional element 323, thereby reducing the risk of the adhesive structure damaging the electronic device 32.

[0134] refer to Figures 5 to 8 In some embodiments, the second housing 321 has a slot 3211 on the side facing the electrical connection structure 33, and the slot 3211 is located on at least one side of the connection terminal 322; the first housing 31 has a rib 312 that is accommodated in the cavity 311, and at least a portion of the rib 312 is inserted into the slot 3211.

[0135] The slot 3211 refers to the groove structure provided on the second housing 321. The slot 3211 can be a recessed groove structure on the second housing 321, or a groove structure formed by a protruding structure on the second housing 321. The slot 3211 can be a straight structure, an arc structure, a closed structure with the ends connected, or other shapes. The cross-sectional shape of the slot 3211 can be square, semi-circular, or other shapes.

[0136] The slot 3211 is located on the side of the second housing 321 facing the electrical connection structure 33, that is, the slot 3211 is located on at least one side of the connection terminal 322; the slot 3211 is located on at least one side of the connection terminal 322. Depending on the shape of the slot 3211, the slot 3211 may be located on one side of the connection terminal 322, or on different sides of the connection terminal 322, or may be arranged around the connection terminal 322.

[0137] Rib 312 refers to a protruding structure provided on the first housing 31. Rib 312 is located inside the cavity 311, that is, rib 312 is a protruding structure that protrudes from the inner wall of the cavity 311 into the cavity 311. Rib 312 can be a straight structure, an arc structure, a closed structure with connected ends, or other shapes. The cross-sectional shape of rib 312 can be square, semi-circular, or other shapes. Rib 312 is connected to the first housing 31 by means of bonding, welding, screwing, or other methods. Rib 312 can also be integrally formed with the first housing 31. The material of rib 312 can include metal, plastic, or other materials. The material of rib 312 can be the same as or different from the material of the first housing 31.

[0138] At least a portion of the protruding rib 312 is inserted into the slot 3211, that is, the protruding rib 312 can be fully inserted into the slot 3211 or only partially inserted into the slot 3211; when the connecting terminal 322 is electrically connected to the electrical connection structure 33, depending on the relative position of the slot 3211 and the connecting terminal 322, the cooperation between the protruding rib 312 and the slot 3211 can prevent the overflow of liquid adhesive structure to the space between the connecting terminal 322 and the electrical connection structure 33 on the corresponding side of the connecting terminal 322, thereby reducing the negative impact that the liquid adhesive structure may have on the electrical connection between the connecting terminal 322 and the electrical connection structure 33.

[0139] For example, the slot 3211 is arranged around the connecting terminal 322. When the connecting terminal 322 is electrically connected to the electrical connection structure 33, the rib 312 is inserted into the slot 3211 and surrounds the connecting terminal 322.

[0140] In this embodiment, a slot 3211 is provided on the second housing 321, and a rib 312 corresponding to the slot 3211 and capable of being inserted into the slot 3211 is provided on the first housing 31. This prevents the liquid adhesive structure from overflowing between the connecting terminal 322 and the electrical connection structure 33, thereby reducing the risk of the liquid adhesive structure negatively affecting the electrical connection between the connecting terminal 322 and the electrical connection structure 33.

[0141] refer to Figures 5 to 10 In some embodiments, the second housing 321 has a first baffle 3212 and a second baffle 3213 spaced apart at one end facing the electrical connection structure 33, and a groove 3211 is formed between the first baffle 3212 and the second baffle 3213.

[0142] The first baffle 3212 refers to a protruding structure that protrudes from the second housing 321. The first baffle 3212 can be a straight structure, an arc structure, a closed structure with the ends connected, or a structure of other shapes. The cross-sectional shape of the first baffle 3212 can be square, semi-circular, or other shapes. The first baffle 3212 is connected to the second housing 321 by means of bonding, welding, screwing, or other methods. The first baffle 3212 can also be integrally formed with the second housing 321. The material of the first baffle 3212 can include metal, plastic, or other materials. The material of the first baffle 3212 can be the same as or different from the material of the second housing 321.

[0143] Similar to the first baffle 3212, the second baffle 3213 refers to a protruding structure that protrudes from the second housing 321. The second baffle 3213 can be a straight structure, an arc structure, a closed structure with connected ends, or other shapes. The cross-sectional shape of the second baffle 3213 can be square, semi-circular, or other shapes. The second baffle 3213 is connected to the second housing 321 by bonding, welding, screwing, or other means. The second baffle 3213 can also be integrally formed with the second housing 321. The material of the second baffle 3213 can include metal, plastic, or other materials. The material of the second baffle 3213 can be the same as or different from the material of the second housing 321.

[0144] The first baffle 3212 and the second baffle 3213 are spaced apart to form a groove 3211 between the first baffle 3212 and the second baffle 3213; when the connecting terminal 322 is electrically connected to the electrical connection structure 33, the protruding rib 312 can be inserted between the first baffle 3212 and the second baffle 3213.

[0145] The height of the first baffle 3212 and the second baffle 3213 protruding from the second housing 321 is the depth of the slot 3211. The height of the first baffle 3212 and the second baffle 3213 protruding from the second housing 321 can be greater than or equal to the height of the rib 312 protruding from the first housing 31, so that the rib 312 can be fully inserted into the slot 3211. The height of the first baffle 3212 and the second baffle 3213 protruding from the second housing 321 can also be less than the height of the rib 312 protruding from the first housing 31, so that the rib 312 is only partially inserted into the slot 3211.

[0146] This embodiment provides a specific structure for the slot 3211, with a first baffle 3212 and a second baffle 3213 spaced apart, so that the slot 3211 is formed by the first baffle 3212 and the second baffle 3213, and the first baffle 3212 and the second baffle 3213 prevent the liquid adhesive structure from overflowing to the connection terminal 322.

[0147] refer to Figure 10 In some embodiments, the first baffle 3212 is an annular structure with its ends connected, and the first baffle 3212 is arranged around the connecting terminal 322; the second baffle 3213 is an annular structure with its ends connected, and the second baffle 3213 is arranged around the connecting terminal 322.

[0148] The first baffle 3212 is a ring structure that surrounds the connecting terminal 322 and is connected end to end. The first baffle 3212 can be a circular ring structure, a square ring structure, or a ring structure of other shapes. The first baffle 3212 can also be an irregularly shaped ring structure.

[0149] Similar to the first baffle 3212, the second baffle 3213 is an annular structure that surrounds the connecting terminal 322 and is connected end to end. The second baffle 3213 can be a circular annular structure, a square annular structure, or an annular structure of other shapes. The second baffle 3213 can also be an irregularly shaped annular structure.

[0150] The first and second annular retaining ribs 3212 and 3213 can form an annular groove 3211 connected end to end. The groove 3211 surrounds the connecting terminal 322. At this time, the shape of the protruding rib 312 is adapted to the shape of the groove 3211 and is inserted into the groove 3211. When the connecting terminal 322 is electrically connected to the electrical connection structure 33, this arrangement can prevent the liquid adhesive structure from overflowing to the connecting terminal 322 from different directions.

[0151] In this embodiment, both the first baffle 3212 and the second baffle 3213 are annular structures surrounding the connecting terminal 322, so as to better prevent the liquid adhesive structure from overflowing to the connecting terminal 322, thereby better reducing the risk of the liquid adhesive structure causing negative impact on the electrical connection between the connecting terminal 322 and the electrical connection structure 33.

[0152] refer to Figures 5 to 9 In some embodiments, the first baffle 3212 is located on the side of the second baffle 3213 away from the connecting terminal 322, and the height of the first baffle 3212 is greater than or equal to the height of the second baffle 3213.

[0153] The first baffle 3212 is located on the side of the second baffle 3213 away from the connecting terminal 322. That is, the second baffle 3213 and the first baffle 3212 are arranged alternately from the connecting terminal 322 away from the connecting terminal 322. The first baffle 3212 is located outside the second baffle 3213. When the connecting terminal 322 is electrically connected to the electrical connection structure 33, the first baffle 3212 first contacts the liquid adhesive structure and prevents the liquid adhesive structure from overflowing to the connecting terminal 322.

[0154] The height of the first baffle 3212 refers to the height by which the first baffle 3212 rises above the second shell 321, that is... Figure 8 The dimension shown in H1; the height of the second baffle 3213 refers to the height by which the second baffle 3213 extends above the second housing 321, that is... Figure 8 The dimensions shown in H2 are as follows.

[0155] The height of the first retaining rib 3212 is greater than or equal to the height of the second retaining rib 3213. The height of the first retaining rib 3212 can be greater than or equal to the height of the second retaining rib 3213.

[0156] The height of the first baffle 3212 is greater than or equal to the height of the second baffle 3213, so that the first baffle 3212 can better abut against the inner wall of the corresponding cavity 311, and reduce the risk that the first baffle 3212 will detach from the inner wall of the cavity 311 due to the excessive height of the second baffle 3213. This allows the first baffle 3212 to better prevent the liquid adhesive structure from overflowing to its inner side.

[0157] In this embodiment, the first baffle 3212 is located outside the second baffle 3213, and the height of the first baffle 3212 is greater than or equal to the height of the second baffle 3213, so as to prevent the overflow of the liquid adhesive structure through the first baffle 3212 and make it difficult for the liquid adhesive structure to overflow into the slot 3211.

[0158] refer to Figures 5 to 9 In some embodiments, the height of the protruding rib 312 is less than or equal to the height of the first retaining rib 3212.

[0159] The height of the rib 312 refers to the height by which the rib 312 protrudes above the corresponding inner wall of the cavity 311, that is... Figure 9The dimension shown in H3; the height of the first baffle 3212 refers to the height by which the first baffle 3212 rises above the second housing 321, that is... Figure 8 The dimensions shown in H1.

[0160] The height of the protruding rib 312 is less than or equal to the height of the first baffle rib 3212. The height of the protruding rib 312 can be equal to or less than the height of the first baffle rib 3212. When the height of the protruding rib 312 is equal to the height of the first baffle rib 3212, the protruding rib 312 can abut against the bottom wall of the slot 3211 after being inserted into the slot 3211, that is, the protruding rib 312 can abut against the second housing 321. When the height of the protruding rib 312 is less than the height of the first baffle rib 3212, the protruding rib 312 is spaced apart from the bottom wall of the slot 3211 after being inserted into the slot 3211, that is, the protruding rib 312 is spaced apart from the second housing 321.

[0161] By making the height of the protruding rib 312 less than or equal to the height of the first baffle rib 3212, when the protruding rib 312 is inserted into the slot 3211, this arrangement can reduce the negative impact that the protruding rib 312 may have on the contact between the first baffle rib 3212 and the bottom wall of the cavity 311. When the height of the protruding rib 312 is less than or equal to the height of the first baffle rib 3212, the first baffle rib 3212 can abut against the bottom wall of the cavity 311 and is difficult to separate from the bottom wall of the cavity 311, thereby enabling the first baffle rib 3212 to better prevent the liquid adhesive structure from overflowing to the inside of the first baffle rib 3212 and making it difficult for the liquid adhesive structure to overflow to the connecting terminal 322.

[0162] In this embodiment, the height of the protruding rib 312 is less than or equal to the height of the first baffle rib 3212. When the first baffle rib 3212 abuts against the first housing 31, the protruding rib 312 can contact the second housing 321 or there is a gap between the protruding rib 312 and the second housing 321. This reduces the negative impact of the protruding rib 312 on the first baffle rib 3212 abutting against the first housing 31, allowing the first baffle rib 3212 to abut against the first housing 31 better. This allows the first baffle rib 3212 to better prevent the liquid adhesive structure from overflowing into the slot 3211, and further reduces the risk of the liquid adhesive structure overflowing into the connecting terminal 322.

[0163] refer to Figures 5 to 9 In some embodiments, the width of the rib 312 is less than or equal to the spacing between the first baffle 3212 and the second baffle 3213.

[0164] The width of the rib 312 refers to the dimension of the rib 312 in the direction perpendicular to its height, that is... Figure 9 The dimensions shown in the middle W; the distance between the first stop rib 3212 and the second stop rib 3213 is the width of the slot 3211.

[0165] The width of the protruding rib 312 is less than or equal to the distance between the first baffle 3212 and the second baffle 3213. That is, the width of the protruding rib 312 can be equal to or less than the distance between the first baffle 3212 and the second baffle 3213. When the width of the protruding rib 312 is equal to the distance between the first baffle 3212 and the second baffle 3213, the inner and outer sides of the protruding rib 312 abut against the first baffle 3212 and the second baffle 3213 respectively.

[0166] The width of the protruding rib 312 is made less than or equal to the distance between the first baffle rib 3212 and the second baffle rib 3213, so that the protruding rib 312 can be inserted into the slot 3211 more smoothly; for example, the width of the protruding rib 312 is equal to the distance between the first baffle rib 3212 and the second baffle rib 3213, so that the protruding rib 312 can not only be inserted into the slot 3211, but also abut against the first baffle rib 3212 and the second baffle rib 3213, so as to prevent the liquid adhesive structure from entering the slot 3211, thereby better preventing the liquid adhesive structure from overflowing to the connecting terminal 322.

[0167] In this embodiment, the protruding rib 312 can not only be inserted into and cooperate with the slot 3211, but also prevent the liquid adhesive structure from overflowing. At this time, the first baffle rib 3212, the protruding rib 312 and the second baffle rib 3213 can form a curved path with multiple bends, making it more difficult for the liquid adhesive structure to cross the first baffle rib 3212, the protruding rib 312 and the second baffle rib 3213 and overflow to the connecting terminal 322.

[0168] In some embodiments, the first housing 31 is provided with a slot 3211 on the side facing the second housing 321; the second housing 321 is provided with a rib 312 on the side facing the electrical connection structure 33, and at least a portion of the rib 312 is inserted into the slot 3211.

[0169] The slot 3211 refers to the groove structure provided on the first housing 31. The slot 3211 can be a recessed groove structure on the first housing 31, or a groove structure formed by a protruding structure on the first housing 31. The slot 3211 can be a straight structure, an arc structure, a closed structure with the ends connected, or other shapes. The cross-sectional shape of the slot 3211 can be square, semi-circular, or other shapes.

[0170] The slot 3211 is located on the side of the first housing 31 facing the second housing 321. That is, the slot 3211 can be located on the bottom wall of the cavity 311 or on the side wall of the cavity 311.

[0171] Rib 312 refers to a protruding structure provided on the second housing 321. Rib 312 can be a straight structure, an arc structure, a closed structure with connected ends, or other shapes. The cross-sectional shape of rib 312 can be square, semi-circular, or other shapes. Rib 312 is connected to the second housing 321 by means of bonding, welding, screwing, or other methods. Rib 312 can also be integrally formed with the second housing 321. The material of rib 312 can include metal, plastic, or other materials. The material of rib 312 can be the same as or different from the material of the second housing 321.

[0172] At least a portion of the protruding rib 312 is inserted into the slot 3211, that is, the protruding rib 312 can be fully inserted into the slot 3211 or only partially inserted into the slot 3211; when the connecting terminal 322 is electrically connected to the electrical connection structure 33, depending on the relative position of the slot 3211 and the connecting terminal 322, the cooperation between the protruding rib 312 and the slot 3211 can prevent the overflow of liquid adhesive structure to the space between the connecting terminal 322 and the electrical connection structure 33 on the corresponding side of the connecting terminal 322, thereby reducing the negative impact that the liquid adhesive structure may have on the electrical connection between the connecting terminal 322 and the electrical connection structure 33.

[0173] This embodiment provides other technical solutions to prevent the liquid adhesive structure from overflowing into the connection terminal 322. A slot 3211 is provided on the first housing 31, and a rib 312 is provided on the second housing 321. The rib 312 corresponds to the slot 3211 and can be inserted into the slot 3211. This prevents the liquid adhesive structure from overflowing into the connection terminal 322 and the electrical connection structure 33, thereby reducing the risk of the liquid adhesive structure negatively affecting the electrical connection between the connection terminal 322 and the electrical connection structure 33.

[0174] refer to Figure 11 , Figure 12 In some embodiments, the electrical connection structure 33 is provided with a connection hole 331, and at least a portion of the connection terminal 322 is accommodated in the connection hole 331.

[0175] The connection hole 331 refers to the hole structure formed on the electrical connection structure 33. The connection hole 331 may include a straight hole, a tapered hole, a stepped hole, or other shaped hole structures. The connection hole 331 may include a round hole, a square hole, or other shaped hole structures. The shape of the connection hole 331 may also be adapted to the shape of the connection terminal 322. The connection hole 331 may be a blind hole or a through hole. The number of connection holes 331 may be one, two, or more.

[0176] At least a portion of the connecting terminal 322 is accommodated in the connecting hole 331, that is, the connecting terminal 322 can be fully inserted into the connecting hole 331 or only partially inserted into the connecting hole 331.

[0177] At least a portion of the connecting terminal 322 is accommodated within the connecting hole 331, which can increase the connection area between the connecting terminal 322 and the electrical connection structure 33, and can also assist in fixing the electronic device 32 through the connecting hole 331 and the connecting terminal 322. Before the electronic device 32 is placed in the cavity 311 and potting is performed, the connecting hole 331 can restrict the position of the connecting terminal 322, so as to assist in fixing and positioning the electronic device 32.

[0178] In this embodiment, a connection hole 331 is provided on the electrical connection structure 33, and the connection terminal 322 is inserted into the connection hole 331 so that the connection terminal 322 can be better connected to the electrical connection structure 33 and the stability of the connection can be improved.

[0179] In some embodiments, the adhesive structure is an elastic structural member.

[0180] The adhesive structure is an elastic structural component, and the material of the adhesive structure may include epoxy resin, polyurethane, acrylate, etc. The adhesive structure is an elastic structural component, so that the adhesive structure can not only bond and fix the electronic device 32 to the first housing 31, but also have a certain deformation capability.

[0181] When the battery device 100 is subjected to impacts, vibrations, or other events, the adhesive structure can absorb some of the vibration energy, thereby reducing the vibration energy transmitted to the electronic device 32 and reducing the risk of damage to the electronic device 32; at the same time, it can also improve the connection stability between the electronic device 32 and the electrical connection structure 33.

[0182] In this embodiment, the adhesive structure is made into an elastic structural component. When the electronic control component 30 is subjected to a collision, the adhesive structure can absorb vibration energy to protect the electronic device 32 and reduce the risk of damage to the electronic device 32.

[0183] In some embodiments, the battery device 100 includes a housing 10, a battery cell 20, and an electronic control component 30.

[0184] Both the battery cell 20 and the electronic control component 30 are housed within the housing 10.

[0185] The electronic control component 30 includes a first housing 31, and a cavity 311 is provided inside the first housing 31. The cavity 311 contains an electronic device 32, which is a relay.

[0186] The cavity 311 contains an electrical connection structure 33 located on the bottom wall of the cavity 311. The electrical connection structure 33 is a copper busbar. The electrical connection structure 33 is provided with a connection hole 331.

[0187] The bottom wall of cavity 311 is provided with a raised rib 312.

[0188] The electronic device 32 includes a second housing 321, a connection terminal 322 is provided inside the second housing 321, one end of the connection terminal 322 extends along the height direction Z to the bottom of the second housing 321; a functional element 323 is provided above the second housing 321 along the height direction Z.

[0189] The second housing 321 has an annular first baffle 3212 and a second baffle 3213 on the side facing the electrical connection structure 33. The first baffle 3212 and the second baffle 3213 are both arranged around the connection terminal 322. The first baffle 3212 and the second baffle 3213 are spaced apart and form a slot 3211 around the connection terminal 322.

[0190] The connecting terminal 322 is inserted into the mounting hole, and the protruding rib 312 is inserted into the slot 3211.

[0191] The cavity 311 is filled with an adhesive structure, which is located between the outer wall of the second housing 321 and the inner wall of the cavity 311. The adhesive structure is a structure formed by the curing of liquid adhesive to bond the second housing 321 to the first housing 31. The adhesive structure is located below the outer surface of the second housing 321 connecting the functional element 323.

[0192] Secondly, embodiments of this application also provide an electrical device, including the battery device 100 provided in some embodiments of the first aspect.

[0193] In the battery device 100, the electronic device 32 is bonded to the first housing 31 of the electronic control component 30 without being connected to the first housing 31 of the electronic control component 30 through a mechanical structure. This arrangement can improve the stability of the electronic device 32 connected to the first housing 31, and the adhesive structure formed by bonding can also absorb the energy generated by the vibration and impact of the battery device 100, and can protect the electronic device 32.

[0194] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that, include: Box; The battery cell is housed in the casing; An electronic control component is housed within the housing. The electronic control component includes a first housing and an electronic device disposed within the first housing. The first housing is connected to the housing and has a cavity. The cavity contains an electrical connection structure for electrical connection with a single battery cell. The electronic device is housed within the cavity and electrically connected to the electrical connection structure. An adhesive structure is provided between the electronic device and the first housing for bonding the electronic device to the first housing. The adhesive structure is an elastic structural component.

2. The battery device according to claim 1, characterized in that, At least a portion of the adhesive structure is a structure formed by curing liquid adhesive, and the adhesive structure fills at least a portion of the cavity.

3. The battery device according to claim 2, characterized in that, The electronic device includes a second housing, the adhesive structure is bonded to the second housing, and the second housing is bonded to the first housing; The electronic device further includes a functional element electrically connected to the electrical connection structure, the functional element being connected to the second housing, and at least a portion of the functional element being exposed outside the second housing.

4. The battery device according to claim 3, characterized in that, The electronic device further includes a connection terminal connected to the second housing, at least a portion of which extends outside the second housing and is connected to the electrical connection structure; In the height direction of the battery device, the electrical connection structure is located at the bottom of the cavity, at least a portion of the connection terminal extends below the second housing, and at least a portion of the functional element is located above the second housing.

5. The battery device according to claim 4, characterized in that, In the height direction of the battery device, the adhesive structure is located below the outer surface of the second housing where the functional element is connected; or The adhesive structure is flush with the outer surface of the second housing where the functional element is connected.

6. The battery device according to claim 4 or 5, characterized in that, The second housing has a slot on the side facing the electrical connection structure, and the slot is located on at least one side of the connection terminal; The first housing is provided with a rib that is accommodated in the cavity, and at least a portion of the rib is inserted into the slot.

7. The battery device according to claim 6, characterized in that, The second housing has a first baffle and a second baffle spaced apart at one end facing the electrical connection structure, and the slot is formed between the first baffle and the second baffle.

8. The battery device according to claim 7, characterized in that, The first baffle is a ring structure with its ends connected, and the first baffle is arranged around the connecting terminal; The second baffle is a ring structure with its ends connected, and the second baffle is arranged around the connecting terminal.

9. The battery device according to claim 7, characterized in that, The first baffle is located on the side of the second baffle away from the connecting terminal, and the height of the first baffle is greater than or equal to the height of the second baffle.

10. The battery device according to claim 9, characterized in that, The height of the protruding rib is less than or equal to the height of the first retaining rib.

11. The battery device according to claim 7, characterized in that, The width of the protruding rib is less than or equal to the distance between the first retaining rib and the second retaining rib.

12. The battery device according to any one of claims 3-5, characterized in that, The first housing has a slot on the side facing the second housing; The second housing has a raised rib on the side facing the electrical connection structure, and at least a portion of the raised rib is inserted into the slot.

13. The battery device according to claim 4 or 5, characterized in that, The electrical connection structure is provided with a connection hole, and at least a portion of the connection terminal is accommodated in the connection hole.

14. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1-13.

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