Battery device and electric equipment

Abstract

The utility model relates to the technical field of battery production, in particular to a battery device and electric equipment. The battery device comprises a box body assembly and a battery control unit, and an accommodating space is formed in the box body assembly; the battery control unit is arranged in the accommodating space; the battery control unit comprises a first shell, a second shell and a circuit board assembly, the first shell and the second shell are connected in a covering manner, and a mounting space is defined by the first shell and the second shell; the inner surface of the second housing is provided with a guide structure, and the guide structure is used for guiding a circuit board assembly to be inserted into the installation space of the second housing. According to the embodiment of the invention, the guide structure is arranged on the inner surface of the second shell, so that the circuit board assembly can be quickly inserted into the installation space of the second shell, and the guide structure can be used for limiting the circuit board assembly, thereby achieving the fixation of the circuit board assembly. And the efficiency of mounting the circuit board assembly in the mounting space of the second shell is improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and more particularly to a battery device and electrical equipment. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] With the increasing maturity of new energy technologies, new energy vehicles and other electrical equipment are gradually entering the public eye. The core technology of new energy vehicles lies in the battery device, and the safety and stability of the battery device directly determine the performance of the entire vehicle.

[0004] The battery device includes a housing assembly and a battery control unit. The battery control unit is located inside the housing assembly. The battery control unit includes a circuit board assembly and a first housing and a second housing that are connected by a cover. The first housing and the second housing enclose an installation space for the circuit board assembly. However, when the circuit board assembly is placed into the installation space, it needs to be locked and fixed, which reduces the installation efficiency of the circuit board assembly. Utility Model Content

[0005] In view of the above problems, this application provides a battery device and an electrical device that solves the problem of low efficiency of existing battery devices when placing circuit board assemblies into the installation space.

[0006] A first aspect of the embodiments of this application provides a battery device, the battery device comprising:

[0007] The enclosure assembly has a housing space inside; and

[0008] The battery control unit is located within the accommodating space;

[0009] The battery control unit includes a first housing, a second housing, and a circuit board assembly, with the first and second housings being closed and connected together.

[0010] Furthermore, the first housing and the second housing together form an installation space for accommodating the circuit board assembly;

[0011] The inner surface of the second housing is provided with a guide structure, which is used to guide the circuit board assembly into the mounting space of the second housing.

[0012] The embodiments of this application provide a guide structure on the inner surface of the second housing, which allows the circuit board assembly to be quickly inserted into the installation space of the second housing, and the guide structure can be used to limit the circuit board assembly and fix the circuit board assembly, thereby improving the efficiency of installing the circuit board assembly into the installation space of the second housing.

[0013] In some embodiments of this application, the second housing includes a plurality of first plates connected in sequence; the guide structure includes two first guide members, and the two first guide members are respectively disposed on the inner surfaces of the two first plates disposed opposite to each other along a first direction, and both first guide members extend along a second direction; wherein, the first direction is the length direction or width direction of the battery control unit, and the second direction is the height direction of the battery control unit.

[0014] The embodiments of this application provide first guide members on the inner surfaces of two opposing first plates, and both first guide members extend along a second direction. This allows the circuit board assembly to be quickly inserted into the mounting space of the second housing along the first guide members, thereby achieving rapid installation of the circuit board assembly.

[0015] In some embodiments of this application, the first guide extends to one end of the first plate away from the first housing.

[0016] In the embodiments of this application, by extending the first guide to the end of the first plate away from the first housing, the circuit board assembly can be inserted along the first guide to the bottom of the second housing, and the circuit board assembly can be quickly installed in the designated position. In addition, the first guide can also limit and fix the circuit board assembly after it is inserted into the designated position, so that the circuit board assembly can be stably placed in the installation space of the second component.

[0017] In some embodiments of this application, the second housing further includes a second plate, with one end of the first plate opposite to the first housing connected to the second plate; the second plate is provided with a fixing member, and at least one of the two first guide members is provided with a fixing member below along the second direction.

[0018] The embodiments of this application, by setting a second plate, can make the second plate and the first plate form a relatively closed installation space. In addition, by providing a fixing member on the second plate, and providing a fixing member below at least one of the two first guide members along the second direction, the circuit board assembly can be inserted into the fixing member after moving along the first guide member, thereby achieving stable placement of the circuit board assembly in the installation space.

[0019] In some embodiments of this application, the fastener is interference-fitted with the circuit board assembly.

[0020] The embodiments of this application achieve stable fixation of the circuit board assembly within the installation space by interference fitting the fastener to the circuit board assembly.

[0021] In some embodiments of this application, the connection method between the first housing and the second housing includes one of bonding, welding, snap-fitting, and fastener connection.

[0022] The embodiments of this application achieve the connection between the first and second housings through a variety of methods, including bonding, welding, snap-fitting, and fastener connection. In some embodiments of this application, the first housing is disposed above the second housing along a second direction. The first housing includes a body portion and a flange portion connected to each other, with the flange portion extending toward the second housing and having a first buckle on it. The second housing has a second buckle, and the first and second buckles are connected. The second direction is the height direction of the battery control unit.

[0023] In embodiments of this application, a first housing is positioned above a second housing along a second direction. The first housing includes a body portion and a flange portion connected to each other, with the flange portion extending toward the second housing and having a first latch. The second housing has a second latch, and the first and second latches are connected to each other, thus enabling a snap-fit ​​connection between the first and second housings. Furthermore, since the first housing is positioned above the second housing along the first direction, the probability of condensate entering the installation space from the first housing is reduced. In some embodiments of this application, the second housing includes a box body and a connecting portion, with at least a portion of the installation space formed within the box body. One end of the box body with an opening is connected to the connecting portion, and the connecting portion has a second latch.

[0024] The embodiments of this application, by providing a housing and a connecting portion, wherein at least a partial installation space is formed within the housing, and the connecting portion is connected to one end of the housing with an opening, and the connecting portion is provided with a second buckle, can form a locking structure by the second buckle on the connecting portion and the first buckle on the flange, thereby reducing the probability of condensate entering the installation space from the contact surface between the first and second housings. In some embodiments of this application, the circumferential outer surface of the flange is flush with the circumferential outer surface of the housing.

[0025] The embodiments of this application, by setting the circumferential outer surface of the flange to be flush with the circumferential outer surface of the box body, can reduce the gap between the flange and the connecting part, thereby reducing the probability that condensate water will enter the area between the flange and the connecting part from the gap between the flange and the box body and then enter the installation space.

[0026] In some embodiments of this application, the circuit board assembly includes a circuit board and plug terminals, with the plug terminals connected to the circuit board; the connection portion is provided with a first notch to avoid the plug terminals, so that at least a portion of the plug terminals can pass through the first notch.

[0027] The embodiments of this application provide a first notch on the connection portion, allowing at least a portion of the plug-in terminals to pass through the first notch. This enables the pins installed on the plug-in terminals to connect with other components outside the battery control unit, thereby achieving electrical connection between the other components and the circuit board.

[0028] In some embodiments of this application, a second notch is provided on the flanged portion, and the second notch is provided correspondingly to the first notch, allowing the plug-in terminal to pass through the second notch and the first notch.

[0029] The embodiments of this application provide a second notch on the flanged portion, with the second notch corresponding to the first notch. The plug-in terminal can pass through the second notch and the first notch, so that the pin installed on the plug-in terminal can be connected to other components outside the battery control unit, thereby realizing the electrical connection between other components and the circuit board.

[0030] In some embodiments of this application, the first guide includes a guide groove, and there is a gap between the bottoms of the guide grooves of the two first guides, the gap being greater than the dimension of the circuit board assembly along the first direction.

[0031] The embodiments of this application provide guide grooves, and the bottoms of the guide grooves of the two first guide members are spaced apart, with the spaced distance being greater than the size of the circuit board assembly along the first direction. This allows the circuit board assembly to move along the first direction, thereby facilitating the passage of some plug-in terminals through the installation space from the position of the first notch.

[0032] A second aspect of this application provides an electrical device including the battery device mentioned in the above embodiments, the battery device being used to supply power to the electrical device.

[0033] The electrical equipment in the embodiments of this application, by using the battery device mentioned in the above embodiments, improves the power consumption performance of the electrical equipment due to the improved performance of the battery device.

[0034] 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

[0035] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. 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:

[0036] Figure 1 This application provides a schematic diagram of the structure of an electrical device according to some embodiments;

[0037] Figure 2 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0038] Figure 3 for Figure 2 A schematic diagram of the battery control unit of the battery device shown in the figure;

[0039] Figure 4 for Figure 3 The diagram shows an exploded view of the battery control unit.

[0040] Figure 5 for Figure 4 The diagram shows the battery control unit from a second-view perspective (circuit board components are not shown).

[0041] Figure 6 for Figure 5 The diagram shows a partially enlarged view of the battery control unit at point A.

[0042] Figure 7 for Figure 4 The diagram shows a cross-sectional view of the battery control unit along the BB.

[0043] Figure 8 for Figure 7 The diagram shows a partial enlarged view of the pool monitoring unit at point C.

[0044] Figure 9 for Figure 4 The diagram shows a cross-sectional view of the battery control unit along the DD direction.

[0045] Figure 10 for Figure 9 The diagram shows a partial enlarged view of the pool monitoring unit at point E.

[0046] The attached figures are labeled as follows:

[0047] 1000. Battery devices; 2000. Electrical equipment; 3000. Controllers; 4000. Motors;

[0048] 100. Cabinet assembly; 110. Upper cabinet; 120. Lower cabinet; 130. Storage space;

[0049] 200. Battery cell modules;

[0050] 300. Battery control unit; 310. First housing; 311. Body; 312. Flanged part; 3121. Second notch; 313. First snap-fit; 320. Circuit board assembly; 321. Plug-in terminal; 322. Pin; 323. Circuit board; 324. Electrical component; 330. Second housing; 331. Box; 3311. First plate; 3312. Second plate; 332. Connecting part; 3321. First notch; 333. Second snap-fit; 340. Mounting space; 350. First guide; 360. Fixing member; 370. Gap;

[0051] 400. Install the bracket;

[0052] XX, length direction;

[0053] YY, width direction;

[0054] ZZ, altitude direction. Detailed Implementation

[0055] 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.

[0056] 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.

[0057] In the description of the embodiments of this application, the technical terms "first," "second," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0058] 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.

[0059] 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.

[0060] 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).

[0061] 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 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0063] 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.

[0064] The battery devices described in this application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft. Such electrical equipment can be composed of battery cells and battery devices as described in this application.

[0065] In this application embodiment, the electrical devices using battery devices as power sources can be, but are 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.

[0066] It should be understood that the technical solutions described in the embodiments of this application are not limited to the battery devices and electrical equipment described above, but can also be applied to all batteries including housings and electrical equipment using batteries.

[0067] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar.

[0068] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0069] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0070] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0071] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0072] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0073] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0074] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0075] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0076] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrodes. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. Current collectors without the positive active material layer protrude beyond those with the coating. These uncoated current collectors are stacked together to form the positive electrode tab. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector. Current collectors without the negative active material layer protrude beyond those with the coating. These uncoated current collectors are stacked together to form the negative electrode tab. The negative current collector can be made of copper, and the negative active material can be carbon or silicon, etc. The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a wound structure or a laminated structure, but the embodiments of the present application are not limited thereto.

[0077] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use individual battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0078] In related technologies, the battery device includes a housing assembly and a battery control unit. The battery control unit is located inside the housing assembly and includes a circuit board assembly and a first housing and a second housing that are connected by a cover. The first housing and the second housing enclose an installation space for the circuit board assembly. However, when the circuit board assembly is placed into the installation space, it needs to be locked and fixed, which reduces the installation efficiency of the circuit board assembly.

[0079] To address this problem, embodiments of this application propose a battery device comprising a housing assembly and a battery control unit. The housing assembly has an accommodating space; the battery control unit is disposed within the accommodating space; the battery control unit includes a first housing, a second housing, and a circuit board assembly, the first housing and the second housing being closed and connected, and the first housing and the second housing enclosing an installation space; the inner surface of the second housing has a guide structure, and the circuit board assembly is inserted into the installation space of the second housing along the guide structure, which allows the circuit board assembly to be quickly inserted into the installation space of the second housing, and the guide structure can be used to limit the circuit board assembly, thereby fixing the circuit board assembly and improving the efficiency of installing the circuit board assembly into the installation space of the second housing.

[0080] The battery device in the embodiments of this application can be used in electrical equipment such as vehicles, or it can be installed in energy storage equipment.

[0081] The structures in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0082] The first aspect of the embodiments of this application provides a battery device 1000, such as Figure 2 and Figure 3 As shown, the battery device 1000 includes a housing assembly 100, a battery cell assembly 200, a battery control unit 300, and a mounting bracket 400. The housing assembly 100 has a receiving space 130, in which the battery cell assembly 200 and the battery control unit 300 are both located. The battery control unit 300 can be mounted on the mounting bracket 400. The battery control unit 300 includes a first housing 310, a second housing 330, and a circuit board assembly 320. The first housing 310 and the second housing 330 are closed and connected, and the first housing 310 and the second housing 330 enclose a mounting space 340 for placing the circuit board assembly 320. The inner surface of the second housing 330 has a guide structure for guiding the circuit board assembly 320 into the mounting space 340 of the second housing 330.

[0083] It should be noted that if Figure 2 As shown, the housing assembly 100 includes an upper housing 110 and a lower housing 120, which together form a receiving space 130 for housing the battery cell assembly 200. The battery control unit 300 is also located within the receiving space 130. Here, the upper housing 110 can also be a first housing, and the lower housing 120 can be a second housing.

[0084] The battery control unit 300 may include a battery management system (BMS) or a battery monitoring circuit (CSC).， In the case of a battery control unit 300 including a battery piping system, the battery control unit 300 can be directly connected to each battery cell and monitor the voltage, temperature, and other status information of each battery cell to ensure effective management of the battery cells. Through data analysis, the charging process can be optimized to extend battery life and prevent potential hazards such as overcharging, over-discharging, short circuits, and overheating. Furthermore, the battery control unit 300 can also have a balancing function to balance the charge of each battery cell, preventing an overall performance degradation of the battery device 1000 due to imbalances between battery cells.

[0085] Circuit board assembly 320 includes circuit board 323 and connector 321. Connector 321 is connected to circuit board 323 and can extend outward from mounting space 340, such as... Figure 4 As shown, multiple electrical components 324 can be installed on the circuit board 323 to realize the sampling function and communication function of the battery control unit 300. The circuit board 323 can be a flexible circuit board or a printed circuit board.

[0086] The first housing 310 and the second housing 330 are connected by a cover, which means that the first housing 310 and the second housing 330 can be connected by a cover to form a relatively closed installation space 340. The circuit board 323 is placed in the installation space 340. In addition to being waterproof, the installation space 340 also needs to be dustproof.

[0087] The embodiments of this application provide a guide structure on the inner surface of the second housing 330, allowing the circuit board assembly 320 to be inserted into the mounting space 340 of the second housing 330 along the guide structure. This enables the circuit board assembly 320 to be quickly inserted into the mounting space 340 of the second housing 330, and the guide structure can be used to limit the circuit board assembly 320, thereby fixing the circuit board assembly 320 and improving the efficiency of installing the circuit board assembly 320 into the mounting space 340 of the second housing 330.

[0088] Optionally, the battery device 1000 also includes a mounting bracket 400 disposed within the accommodating space 130. The mounting bracket 400 can be mounted on the battery cell assembly 200, and a battery control unit 300 is mounted on the mounting bracket 400. The battery device 1000 can monitor and manage its status, performance, and health in real time through the battery control unit 300.

[0089] In some embodiments of this application, such as Figure 4 As shown, the circuit board assembly 320 also includes a pin 322, which connects the circuit board 323 and the connector terminal 321, and the pin 322 is electrically connected to the circuit board 323.

[0090] The pins 322 here are typically metal and have a conductive function. The terminals 321 here are typically insulating and have an insulating function. The first housing 310 and the second housing 330 are also typically made of insulating materials to achieve an insulating function.

[0091] The pins 322 here are usually arranged in a row of multiple pins. Considering that there are multiple plug terminals 321, each plug terminal 321 can be provided with at least one pin 322.

[0092] In the embodiments of this application, by setting a pin 322 and connecting the pin 322 to the circuit board 323 and the plug terminal 321 respectively, and the pin 322 is electrically connected to the circuit board 323, the connection or communication between the circuit board 323 and the external device can be realized through the pin 322.

[0093] In some embodiments of this application, such as Figure 4 and Figure 5 As shown, the second housing 330 includes a plurality of first plates 3311 connected in sequence; the guide structure includes two first guide members 350, and the two first guide members 350 are respectively disposed on the inner surfaces of the two first plates 3311 arranged opposite to each other along a first direction, and both first guide members 350 extend along a second direction; wherein, the first direction is the length direction or width direction of the battery control unit 300, and the second direction is the height direction of the battery control unit 300.

[0094] exist Figure 3 In the middle, the length direction of the battery control unit 300 is Figure 3 In the XX direction, the width direction of the battery control unit 300 is... Figure 3 In the YY direction, the height direction of the battery control unit 300 is... Figure 3 The ZZ direction in the middle.

[0095] Continue to refer to Figure 3 and Figure 9 As shown, the first guide member 350 extends along the height direction of the battery control unit 300. There are four first plates 3311. The first guide member 350 only needs to be provided on two oppositely arranged first plates 3311. Figure 4 In the middle, there are four first plates 3311. First guide members 350 can be set on two opposite first plates 3311 as needed.

[0096] The height of the first guide member 350 along the second direction is less than or equal to the height of the first plate 3311 along the second direction. For example, if the height of the first guide member 350 along the second direction is half the height of the first plate 3311 along the second direction, or if the height of the first guide member 350 along the second direction is the same as the height of the first plate 3311 along the second direction, it can play a guiding role for the circuit board assembly 320.

[0097] In the embodiments of this application, by providing first guide members 350 on the inner surfaces of two opposing first plates 3311, and both first guide members 350 extending along a second direction, the circuit board assembly 320 can be quickly inserted into the mounting space 340 of the second housing 330 along the first guide members 350, thereby achieving rapid installation of the circuit board assembly 320.

[0098] Specifically, the first guide 350 extends to the end of the first plate 3311 opposite to the first housing 310. That is, the first guide 350 can extend to the bottom of the first plate 3311, so that the circuit board assembly 320 can be easily guided to the bottom of the second housing 330, and the circuit board assembly 320 can be installed quickly and easily.

[0099] In the embodiments of this application, by extending the first guide 350 to the end of the first plate 3311 opposite to the first housing 310, the circuit board assembly 320 can be inserted along the first guide 350 into the bottom of the second housing 330, and the circuit board assembly 320 can be quickly installed in the designated position. In addition, the first guide 350 can also limit and fix the circuit board assembly 320 after it is inserted into the designated position, so that the circuit board assembly 320 can be stably placed in the installation space 340 of the second component.

[0100] In some embodiments of this application, the second housing 330 further includes a second plate 3312, and the end of the first plate 3311 facing away from the first housing 310 is connected to the second plate 3312; the second plate 3312 is provided with a fixing member 360, and at least one of the two first guide members 350 is provided with the fixing member 360 below along the second direction.

[0101] When the first guide 350 does not extend to the bottom of the first plate 3311, a fixing member 360 can be provided on the second plate 3312 to fix the circuit board assembly 320.

[0102] It is understandable that the second plate 3312 and the first plate 3311 can form a rectangular installation space 340, or they can form an installation space 340 of other shapes, such as the second plate 3312 and the first plate 3311 forming a cylindrical structure or an elliptical cylinder structure. In this case, the two first guide members 350 can be arranged opposite each other on the first plate 3311.

[0103] In the embodiments of this application, by providing a second plate 3312, the second plate 3312 and the first plate 3311 can form a relatively closed installation space 340. In addition, by providing a fixing member 360 on the second plate 3312, and by providing a fixing member 360 below at least one of the two first guide members 350 along the second direction, the circuit board assembly 320 can be inserted into the fixing member 360 after moving along the first guide member 350, thereby achieving stable placement of the circuit board assembly 320 within the installation space 340.

[0104] In some embodiments of this application, the fastener 360 is interference-fitted with the circuit board assembly 320.

[0105] The interference fit between the fastener 360 and the circuit board assembly 320 mentioned here means that the width of the slot of the fastener 360 is less than or equal to the thickness of the circuit board 323, so that there is a certain amount of interference between the fastener 360 and the circuit board assembly 320, making the circuit board assembly 320 more stable.

[0106] The embodiments of this application achieve stable fixation of the circuit board assembly 320 within the mounting space 340 by interference fitting the fastener 360 to the circuit board assembly 320.

[0107] In some embodiments of this application, the connection method of the first housing 310 and the second housing 330 includes one of bonding, welding, snap-fitting and fastener connection.

[0108] The bonding can be achieved by using double-sided adhesive or solid adhesive to connect the first housing 310 and the second housing 330. Welding can be achieved by using laser welding or brazing. Clip-on can be achieved by using a snap-on structure to achieve a sealed connection between the first housing 310 and the second housing 330. Fastener connection can be achieved by using fasteners to achieve a sealed connection between the first housing 310 and the second housing 330. Regardless of the method used, the connection between the first housing 310 and the second housing 330 can be achieved.

[0109] The embodiments of this application can achieve the connection between the first housing 310 and the second housing 330 by including one of the following connection methods: bonding, welding, snap-fitting, and fastener connection.

[0110] In some embodiments of this application, the first housing 310 is disposed above the second housing 330 along the second direction. The first housing 310 includes a body portion 311 and a flange portion 312 connected to each other. The flange portion 312 extends toward the second housing 330 and is provided with a first buckle 313. The second housing 330 is provided with a second buckle 333. The first buckle 313 and the second buckle 333 are connected. The second direction is the height direction of the battery control unit 300.

[0111] It should be noted that the main body 311 here has a plate-like structure, and the plate-like structure is provided with a plug-in terminal 321 that penetrates the plate-like structure. The flange 312 here is connected to the circumferential edge of the main body 311 and is perpendicular to the main body 311. At this time, the main body 311 and the flange 312 form a box-like structure with a downward opening, and the flange 312 has a rectangular ring-like structure.

[0112] In the embodiments of this application, the first housing 310 is disposed above the second housing 330 along the second direction. The first housing 310 includes a body portion 311 and a flange portion 312 connected to each other. The flange portion 312 extends toward the second housing 330 and is provided with a first buckle 313. The second housing 330 is provided with a second buckle 333. The first buckle 313 and the second buckle 333 are connected, so that the first housing 310 and the second housing 330 can be engaged. In addition, since the first housing 310 is disposed above the second housing 330 along the first direction, the probability of condensate entering the installation space 340 from the first housing 310 can be reduced.

[0113] In some embodiments of this application, the second housing 330 includes a box body 331 and a connecting portion 332. At least a partial installation space 340 is formed inside the box body 331. One end of the box body 331 with an opening is connected to the connecting portion 332, and the connecting portion 332 is provided with a second buckle 333.

[0114] It should be noted that if Figure 4 As shown, the opening of the box body 331 is located at the top of the box body 331. That is, the opening of the box body 331 is located at the top of the box body 331 along the ZZ direction. The connecting part 332 is connected to the top of the box body 331. The connecting part 332 is provided with a second buckle 333. The second buckle 333 can be set on the outer surface of the connecting part 332, or the second buckle 333 can be set on the connecting part 332 and penetrate through the thickness direction of the connecting part 332.

[0115] In some embodiments of this application, such as Figure 5 As shown and Figure 8As shown, there are two or more first buckles 313, and the two or more first buckles 313 are spaced apart along the circumferential direction of the flange portion 312. The connecting portion 332 is provided with two or more second buckles 333, and each second buckle 333 is engaged and connected with the corresponding first buckle 313.

[0116] exist Figure 4 In the middle, three second buckles 333 are respectively provided on the longer plate of the connecting part 3324, and the three second buckles 333 are spaced apart along the length direction of the plate. The multiple second buckles 333 can be evenly arranged or non-evenly arranged.

[0117] Accordingly, there are a total of six first buckles 313, and three of the first buckles 313 cooperate with three second buckles 333 on one of the plates, while the other three first buckles 313 cooperate with three second buckles 333 on another plate. This allows the flange 312 and the connecting part 332 to be fastened simultaneously from multiple positions, improving the fastening strength between the flange 312 and the connecting part 332, thereby increasing the fastening strength between the first housing 310 and the second housing 330.

[0118] The embodiments of this application provide two or more first buckles 313 spaced circumferentially along the flange 312 and two or more second buckles 333 correspondingly provided on the connecting part 332, so that the fastening connection can be made at two or more positions, thereby improving the fastening strength between the flange 312 and the connecting part 332.

[0119] like Figure 5 and Figure 6 As shown, one of the first buckle 313 and the second buckle 333 is a protruding structure, and the other of the first buckle 313 and the second buckle 333 is a groove structure or a hole structure.

[0120] In this design, the raised structure and the grooved structure or hole structure achieve a locking effect through a convex-concave fit. Figure 6 In the middle, the first buckle 313 is a protruding structure and the second buckle 333 is a groove structure. The fastening connection is achieved through the engagement between the protruding structure and the groove structure.

[0121] In this embodiment, one of the first latch 313 and the second latch 333 is a protruding structure, while the other is a groove or hole structure. This facilitates the processing of the first latch 313 and the second latch 333 and improves the fastening efficiency between them. Furthermore, this fastening method reduces the likelihood of latches being exposed, ensuring that after assembly, the surface of the battery control unit 300 has no gaps that allow direct access to the mounting space 340.

[0122] Continue to refer to Figure 3 As shown, the connecting part 332 has a rectangular ring structure, consisting of four plates connected in sequence, wherein the lengths of two opposite plates are the same.

[0123] For longer plates, the thickness direction is... Figure 3 In the YY direction, for shorter plates, the thickness direction of the plate is... Figure 3 In the XX direction, considering that the length of the shorter connecting part 332 is relatively short, the embodiments of this application can be provided only on the longer plate.

[0124] The embodiments of this application provide a housing 331 and a connecting part 332. The housing 331 has at least a partial installation space 340. The connecting part 332 is connected to the end of the housing 331 with an opening, and the connecting part 332 is provided with a second buckle 333. The second buckle 333 on the connecting part 332 can form a snap-fit ​​structure with the first buckle 313 on the flange 312, thereby reducing the probability of condensate entering the installation space 340 from the contact surface between the first housing 310 and the second housing 330.

[0125] In some embodiments of this application, such as Figure 5 As shown, the circumferential outer contour line of the connecting part 332 is located inside the circumferential outer contour line of the multiple sequentially connected first plates 3311.

[0126] It should be noted that the ends of the multiple sequentially connected first plates 3311 facing the first housing 310 are connected to the connecting portion 332, that is, the top ends of the multiple sequentially connected first plates 3311 are connected to the connecting portion 332. The circumferential outer contour line of the connecting portion 332 is located inside the circumferential outer contour line of the multiple sequentially connected first plates 3311. In other words, the circumferential outer contour line of the connecting portion 332 and the circumferential outer contour lines of the multiple sequentially connected first plates 3311 form a U-shaped structure, and the circumferential outer contour line of the connecting portion 332 is located inside the circumferential outer contour line of the multiple sequentially connected first plates 3311.

[0127] In the embodiments of this application, by placing the circumferential outer contour line of the connecting portion 332 inside the circumferential outer contour line of a plurality of sequentially connected first plates 3311, the probability of condensate entering the installation space 340 from the gap between the flange portion 312 and the first plates 3311 can be reduced by using the connecting portion 332.

[0128] In some embodiments of this application, the circumferential outer surface of the flange 312 is flush with the circumferential outer surface of the box body 331.

[0129] It should be noted that the circumferential outer surface of the flange 312 is flush with the circumferential outer surface of the box body 331, which means that each circumferential surface of the flange 312 and the corresponding circumferential surface of the box body 331 are located in the same vertical plane. Therefore, the four circumferential surfaces of the flange 312 and the four circumferential surfaces of the box body 331 are located in different vertical planes.

[0130] In the embodiments of this application, by setting the circumferential outer surface of the flange 312 flush with the circumferential outer surface of the box 331, the gap between the flange 312 and the connecting part 332 can be reduced, thereby reducing the probability that condensate water will enter the area between the flange 312 and the connecting part 332 from the gap between the flange 312 and the box 331 and then enter the installation space 340.

[0131] In some embodiments of this application, such as Figure 5 As shown, the connecting part 332 is provided with a first notch 3321 to avoid the plug-in terminal 321, so that at least part of the plug-in terminal 321 can pass through the first notch 3321.

[0132] There are two first notches 3321, which allow two plug terminals 321 to pass through the installation space 340 from the positions of the two first notches 3321 respectively.

[0133] The first notch 3321 here can be determined according to the shape of the plug terminal 321. Considering that the plug terminal 321 has a rectangular structure, the first notch 3321 here can be a rectangular structure.

[0134] In the embodiments of this application, a first notch 3321 is provided on the connecting part 332, so that at least part of the plug-in terminal 321 can pass through the first notch 3321. This allows the pin 322 installed on the plug-in terminal 321 to connect with other components outside the battery control unit 300, thereby realizing the electrical connection between other components and the circuit board 323.

[0135] In some embodiments of this application, such as Figure 5 As shown, the flange 312 is provided with a second notch 3121, which is provided in correspondence with the first notch 3321, and the plug-in terminal 321 can pass through the second notch 3121 and the first notch 3321.

[0136] There are two second notches 3121 here, and the two second notches 3121 are respectively set to correspond to the two first notches 3321, so that both plug terminals 321 can pass through the notch positions to the outside of the installation space 340. That is, some plug terminals 321 can pass through the first notch 3321 and the corresponding second notch 3121 to the outside of the connection part 332.

[0137] In the embodiments of this application, a second notch 3121 is provided on the flange portion 312. The second notch 3121 and the first notch 3321 are correspondingly arranged, and the plug terminal 321 can pass through the second notch 3121 and the first notch 3321. This allows the pin 322 installed on the plug terminal 321 to connect with other components outside the battery control unit 300, thereby realizing the electrical connection between other components and the circuit board 323.

[0138] In some embodiments of this application, such as Figure 9 and Figure 10 As shown, the first guide member 350 includes a guide groove, and there is a gap between the bottoms of the guide grooves of the two first guide members 350, the gap being larger than the dimension of the circuit board assembly 320 along the first direction. The gap between the bottoms of the two guide grooves can be the same as or smaller than the dimension of the mounting space 340 along the first direction. When the gap is larger than the dimension of the circuit board assembly 320 along the first direction, when the circuit board assembly 320 is installed in the mounting space 340, at least one end of the circuit board assembly 320 along the first direction has a gap 370 with the corresponding guide groove, thereby facilitating the leftward or rightward movement of the circuit board assembly 320 along the first direction and facilitating the insertion terminal 321 to pass through the first notch 3321.

[0139] By setting the interval larger than the dimension of the circuit board assembly 320 along the first direction, the circuit board assembly 320 can be moved left or right along the first direction, thereby facilitating the insertion terminal 321 to pass through the position of the first notch 3321. Figure 3 In this process, the circuit board assembly 320 can move left and right along the XX direction, thereby allowing the plug terminal 321 to pass through the first notch 3321 to the outside of the mounting space 340.

[0140] The embodiments of this application provide guide grooves, and the bottoms of the guide grooves of the two first guide members 350 are spaced apart, with the spaced distance being greater than the size of the circuit board assembly 320 along the first direction. This allows the circuit board assembly 320 to move left or right along the first direction, thereby facilitating the passage of some plug-in terminals 321 through the installation space 340 from the position of the first notch 3321.

[0141] It should be noted that the circuit board 323 here is movable. The size of the gap between the plug terminal 321 and the second housing 330 can be adjusted by moving the circuit board 323 along the XX direction, thereby reducing the probability of condensation and dust entering the installation space 340.

[0142] The battery control unit 300 of this application meets the IPXXB requirements, where IPXXB is a protection rating standard for high-voltage components in electric vehicles. IP stands for International Protection, and XX indicates the specific protection rating. The first digit or letter represents the dustproof rating, and the second digit or letter represents the waterproof rating, such as meeting IP1XB or IP2XB requirements.

[0143] After the circuit board assembly 320 is installed into the mounting space 340 of the second housing 330, the first housing 310 and the second housing 330 are fastened together to realize the assembly process of the battery control unit 300. Since the installation process of the circuit board assembly 320 adopts a guide structure, the installation efficiency of the circuit board assembly 320 can be significantly improved.

[0144] A second aspect of this application provides an electrical device 2000, including the battery device 1000 mentioned in the above embodiments, the battery device 1000 being used to supply power to the electrical device 2000.

[0145] The electrical equipment 2000 is equipped with a battery device 1000, which may be located at the bottom, head, or tail of the electrical equipment 2000. The battery device 1000 can be used to power the electrical equipment 2000; for example, the battery device 1000 can serve as the operating power source for the electrical equipment 2000. The electrical equipment 2000 may also include a controller 3000 and a motor 4000. The controller 3000 is used to control the battery device 1000 to supply power to the motor 4000, for example, to meet the power requirements of the electrical equipment 2000 during startup, navigation, and operation.

[0146] The electrical device 2000 of the embodiments of this application, by using the battery device 1000 mentioned in the above embodiments, improves the working power consumption performance of the electrical device 2000 due to the improved performance of the battery device 1000.

[0147] 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.

[0148] A first aspect of the embodiments of this application provides a battery device 1000, which includes a housing assembly 100 and a battery control unit 300. The housing assembly 100 has an accommodating space 130. The battery control unit 300 is disposed in the accommodating space 130. The battery control unit 300 includes a first housing 310, a second housing 330 and a circuit board assembly 320. The first housing 310 and the second housing 330 are closed and connected, and the first housing 310 and the second housing 330 enclose an installation space 340. The inner surface of the second housing 330 is provided with a guide structure, and the circuit board assembly 320 is inserted into the interior of the second housing 330 along the guide structure. Further, the second housing 330 includes a plurality of first plates 3311 connected in sequence; the guiding structure includes two first guide members 350, each first guide member 350 being disposed on the inner surface of the two first plates 3311 disposed opposite to each other along a first direction, and both first guide members 350 extending along a second direction; wherein, the first direction is the length or width direction of the battery control unit 300, and the second direction is the height direction of the battery control unit 300. Further, the first guide member 350 extends to the end of the first plate 3311 opposite to the first housing 310. Further, the second housing 330 also includes a second plate 3312, the end of the first plate 3311 opposite to the first housing 310 being connected to the second plate 3312; a fixing member 360 is provided on the second plate 3312, and at least one of the two first guide members 350 is provided with a fixing member 360 below along the second direction. Further, the fixing member 360 is interference-fitted with the circuit board assembly 320. Further, the connection method of the first housing 310 and the second housing 330 includes one of bonding, welding, snap-fitting, and fastener connection. Further, the first housing 310 is disposed above the second housing 330 along a second direction. The first housing 310 includes a body portion 311 and a flange portion 312 connected to each other. The flange portion 312 extends toward the second housing 330 and is provided with a first buckle 313. The second housing 330 is provided with a second buckle 333, and the first buckle 313 and the second buckle 333 are connected. The second direction is the height direction of the battery control unit 300. Further, the second housing 330 includes a box body 331 and a connecting portion 332. At least a partial installation space 340 is formed within the box body 331. One end of the box body 331 with an opening is connected to the connecting portion 332, and the connecting portion 332 is provided with a second buckle 333. Further, the circumferential outer surface of the flange portion 312 is flush with the circumferential outer surface of the box body 331. Furthermore, the circuit board assembly 320 includes a circuit board 323 and a plug-in terminal 321, the plug-in terminal 321 being connected to the circuit board 323; the connection portion 332 is provided with a first notch 3321 to avoid the plug-in terminal 321, so that at least a portion of the plug-in terminal 321 can pass through the first notch 3321.Furthermore, the flanged portion 312 is provided with a second notch 3121, which is correspondingly provided with the first notch 3321, and the plug-in terminal 321 can pass through the second notch 3121 and the first notch 3321. Furthermore, the first guide member 350 includes a guide groove, and there is a gap between the bottom of the guide grooves of the two first guide members 350, the gap being larger than the dimension of the circuit board assembly 320 along the XX.

[0149] A second aspect of this application provides an electrical device 2000, including the battery device 1000 mentioned in the above embodiments, the battery device 1000 being used to supply power to the electrical device 2000.

[0150] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A battery device, characterized in that, The battery device includes: A housing assembly, wherein the housing assembly has an accommodating space; and A battery control unit is disposed within the accommodating space; The battery control unit includes a first housing, a second housing, and a circuit board assembly. The first housing and the second housing are connected and cover each other, and the first housing and the second housing together form an installation space for accommodating the circuit board assembly. The inner surface of the second housing is provided with a guide structure, which is used to guide the circuit board assembly into the mounting space of the second housing.

2. The battery device as claimed in claim 1, characterized in that, The second housing includes a plurality of first plates connected in sequence; The guiding structure includes a first guide member, the number of which is two, and the two first guide members are respectively disposed on the inner surfaces of two first plates arranged opposite to each other along a first direction, and both first guide members extend along a second direction; Wherein, the first direction is the length direction or width direction of the battery control unit, and the second direction is the height direction of the battery control unit.

3. The battery device as claimed in claim 2, characterized in that, The first guide extends to the end of the first plate that is away from the first housing.

4. The battery device as claimed in claim 2, characterized in that, The second housing also includes a second plate, and the end of the first plate opposite to the first housing is connected to the second plate; The second plate is provided with a fixing member, and at least one of the two first guide members is provided with the fixing member below along the second direction.

5. The battery device as claimed in claim 4, characterized in that, The fastener is interference-fitted with the circuit board assembly.

6. The battery device as claimed in claim 2, characterized in that, The connection method between the first housing and the second housing includes one of the following: bonding, welding, snap-fitting, and fastener connection.

7. The battery device as claimed in claim 6, characterized in that, The first housing is disposed above the second housing along the second direction. The first housing includes a body portion and a flange portion that are connected to each other. The flange portion extends toward the second housing and is provided with a first buckle. The second housing is provided with a second buckle, and the first buckle and the second buckle are connected, wherein the second direction is the height direction of the battery control unit.

8. The battery device as claimed in claim 7, characterized in that, The second housing includes: A housing, wherein at least a portion of the mounting space is formed within the housing; The connecting part is provided with one end of the box body having an opening, and the connecting part is provided with the second buckle.

9. The battery device as claimed in claim 8, characterized in that, The outer circumferential surface of the flange is flush with the outer circumferential surface of the box body.

10. The battery device as claimed in claim 8, characterized in that, The circuit board assembly includes a circuit board and plug terminals, wherein the plug terminals are connected to the circuit board; The connecting portion is provided with a first notch to avoid the plug-in terminal, so that at least a portion of the plug-in terminal can pass through the first notch.

11. The battery device as claimed in claim 10, characterized in that, The flanged portion is provided with a second notch, which is provided in correspondence with the first notch, and the plug-in terminal can pass through the second notch and the first notch.

12. The battery device according to any one of claims 2 to 11, characterized in that, The first guide includes a guide groove, and there is a gap between the bottom of the guide grooves of the two first guides, the gap being greater than the dimension of the circuit board assembly along the first direction.

13. An electrical appliance, characterized in that, The battery device includes any one of claims 1 to 12, the battery device being used to supply power to the electrical device.

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