Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment, relates to the technical field of batteries, and is used for conveniently detecting air in the battery device by a detection module so as to ensure the detection precision of the detection module. The battery device comprises a box body, a battery management assembly, a second shell and a detection module, and a cavity is formed in the box body. The battery management assembly is arranged in the cavity; the battery management assembly comprises a first shell and a battery management module, a containing cavity is formed in the first shell, and the battery management module is arranged in the containing cavity. The second shell is connected with the battery management assembly, a detection space is defined by the second shell and the first shell, an airflow channel is formed in the wall of the detection space defined by the first shell and the second shell, and the airflow channel communicates with the cavity and the detection space. The detection module is arranged in the detection space and is electrically connected with the battery management module. The battery device is used for storing and providing electric energy.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and an electrical device. Background Art

[0002] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are also being increasingly used in energy storage fields.

[0003] In the related art, the battery device includes a box, a battery management component and a detection module. The battery management component is arranged in the box, wherein the battery management component includes a first shell and a battery management module. The detection module and the battery management module are both arranged inside the first shell. The detection module is electrically connected to the battery management module, the detection module is controlled by the battery management module, and the detection module is used to monitor the status inside the box.

[0004] However, since the first housing is usually closed, when the detection module is a detector that needs to detect the air inside the box to determine the internal state of the box, the setting of the first housing will affect the detection accuracy of the detection module. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a battery device and an electrical device, which are used to facilitate a detection module to detect the air inside the battery device to ensure the detection accuracy of the detection module.

[0006] This application is implemented through the following technical solutions.

[0007] In a first aspect, the present application provides a battery device comprising a housing, a battery management assembly, a second housing, and a detection module. The housing has a cavity within it. The battery management assembly is disposed within the cavity. The battery management assembly comprises a first housing and a battery management module. The first housing has a receiving cavity within it, and the battery management module is disposed within the receiving cavity. The second housing is connected to the battery management assembly and, together with the first housing, forms a detection space. The walls of the detection space formed by the first and second housings are provided with an airflow channel, connecting the cavity and the detection space. The detection module is disposed within the detection space and is electrically connected to the battery management module.

[0008] In the technical solution of the embodiment of the present application, the battery management component is arranged in a box, and the box provides physical protection for the battery management component. The battery management component includes a first outer shell and a battery management module. The first outer shell can physically protect the battery management module. Since the detection module is electrically connected to the battery management module, the battery management module can also control the detection module to monitor the status inside the cavity.

[0009] Since the first shell and the second shell form a detection space, and the walls of the detection space formed by the first shell and the second shell are provided with an air flow channel connecting the cavity and the detection space, the gas inside the cavity can enter the detection space through the air flow channel. Since the detection module is arranged in the detection space, the detection module can detect the gas and judge the state inside the cavity based on the gas.

[0010] Furthermore, since the airflow channel is provided in the wall of the detection space enclosed by the first and second housings, it is easy to open the airflow channel and facilitate detection of the detection module. Moreover, since the detection space is enclosed by the first and second housings, the integration of the first and second housings is also ensured.

[0011] In some embodiments of the present application, the first shell has an inwardly recessed escape space, the second shell is accommodated in the escape space, and the detection space is located in the escape space.

[0012] In this arrangement, the detection space is located in the avoidance space, and the avoidance space is located outside the first shell, so it is still possible to facilitate the connection between the detection space and the cavity. Moreover, since the second shell is arranged in the avoidance space, and the avoidance space is a structure recessed into the interior of the first shell, the first shell is surrounded by the outside of the second shell, which can provide physical protection for the second shell to ensure the reliability of the setting environment of the second shell, and thereby ensure the stability of the detection module arranged in the detection space.

[0013] In some embodiments of the present application, the first shell includes a connected flat plate portion, a vertical wall portion and a matching portion, the flat plate portion extends along the first plane, the extension direction of the vertical wall portion is consistent with the extension direction of the matching portion, and both are perpendicular to the flat plate portion, the vertical wall portion has a notch that is recessed into the accommodating cavity along the first direction, the matching portion is located at the notch, the notch forms an avoidance space, and the matching portion is a wall of the avoidance space.

[0014] In this way, an avoidance space is formed by providing an inwardly recessed notch on the vertical wall portion, and the matching portion serves as a wall of the avoidance space and simultaneously plays the role of isolating the avoidance space and the accommodating cavity, so that the avoidance space is located outside the first shell, and the accommodating cavity is formed inside the first shell, which facilitates the formation of the avoidance space and the accommodating cavity respectively.

[0015] In some embodiments of the present application, the second housing has an opening, and the opening is opposite to and engaged with the matching portion to form a detection space.

[0016] With such arrangement, after the second housing is arranged in the avoidance space, the second housing and the matching portion can be relatively engaged to form the detection space, which can facilitate the formation of the detection space.

[0017] In some embodiments of the present application, the flat plate portion is recessed into the accommodating cavity along the second direction to form an airflow groove, the airflow groove and the avoidance space are respectively located on both sides of the mating portion, and the airflow channel includes a first airflow channel arranged on the mating portion, the first airflow channel connects the detection space with the airflow groove, and the first direction intersects with the second direction.

[0018] With this arrangement, the first airflow channel can be used to connect the detection space with the airflow slot, and gas within the cavity can enter the detection space through the airflow slot and the first airflow channel. Because the airflow slot is recessed along the second direction, the first airflow channel is arranged on one side of the detection space in the first direction. Therefore, the length of the first airflow channel can be shortened in the first direction, thereby facilitating the arrangement of the first airflow channel and allowing particulate matter within the cavity to quickly pass through the first airflow channel and enter the detection space.

[0019] In some embodiments of the present application, the air flow channel further includes a second air flow channel provided on the second housing, and the second air flow channel connects the detection space with the cavity.

[0020] With this arrangement, one of the first airflow channel and the second airflow channel can serve as an air inlet channel, while the other serves as an air outlet channel, which can facilitate the flow of gas so that the gas in the cavity can pass through the detection space smoothly, facilitating detection by the detection module.

[0021] In some embodiments of the present application, the detection module includes two detection bodies, the two detection bodies include a light-emitting device and a light-receiving device, the light-receiving device is used to receive the amount of light emitted by the light-emitting device, the second air flow channel is arranged on the wall opposite to the mating part of the second shell, along the first direction, the first air flow channel and the second air flow channel are arranged opposite to each other, and a flow channel extending along the first direction is formed between the first air flow channel and the second air flow channel, and the light-emitting device and the light-receiving device are respectively arranged on both sides of the flow channel.

[0022] In this configuration, the detection module is a smoke sensor. When particulate matter is generated in the cavity, gas doped with particulate matter can enter the detection space. The particulate matter in the gas can change the emission direction of the light emitted by the light-emitting device, thereby changing the amount of light received by the light-receiving device, thereby detecting and judging the state in the cavity. Since the light-emitting device and the light-receiving device are respectively arranged on both sides of the flow channel, the gas containing particulate matter can pass between the light-emitting device and the light-receiving device, thereby improving the accuracy of the detection results.

[0023] In some embodiments of the present application, the second shell further includes an abutment portion, which extends toward the interior of the accommodating cavity along a first direction; along a second direction, there is an avoidance gap between the battery management module and the mating portion, and the abutment portion is inserted into the avoidance gap.

[0024] In this way, along the first direction, after the opening and the mating portion are buckled together, along the second direction, the abutting portion will be clamped between the mating portion and the battery management module, that is, inserted into the avoidance gap between the battery management module and the mating portion, thereby ensuring the stability of the second shell in the second direction.

[0025] In some embodiments of the present application, the detection module includes a detection body and a conductive part, and the detection body is arranged in the detection space; the abutment portion has an avoidance channel, one end of the conductive part is electrically connected to the detection body, and the other end of the conductive part passes through the avoidance channel and is electrically connected to the battery management module.

[0026] With this arrangement, the detection body is responsible for detection, and the conductive member is responsible for electrically connecting the detection body and the battery management module. Since there is an avoidance channel on the abutment portion, it is convenient to use the conductive member to electrically connect the battery management module located in the accommodating cavity and the detection body located in the detection space.

[0027] In some embodiments of the present application, the battery device further includes a first connector and a second connector, one of the first connector and the second connector is disposed on the second housing, the other of the first connector and the second connector is disposed on the battery management assembly, and the first connector and the second connector are detachably connected.

[0028] With such an arrangement, the second housing and the battery management assembly can be detachably connected through the detachable connection between the first connector and the second connector. The detachable connection can facilitate the installation, removal and replacement of the second housing.

[0029] In some embodiments of the present application, along the second direction, the battery management module is located on one side of the avoidance space, and the second shell is supported on the battery management module, the other of the first connector and the second connector is provided on the battery management module, and the first connector is opposite to and clamped with the second connector.

[0030] With such an arrangement, the second housing and the battery management module can be snapped together in the second direction.

[0031] In some embodiments of the present application, the other of the first connecting member and the second connecting member is disposed at the mating portion; along the first direction, the first connecting member and the second connecting member are opposite to each other and engaged with each other.

[0032] With such an arrangement, the second housing can be snap-fitted with the matching portion in the first direction.

[0033] In some embodiments of the present application, the other of the first connecting member and the second connecting member is arranged on the vertical wall portion, and the first connecting member and the second connecting member are located outside the notch; along the second direction, the first connecting member and the second connecting member are arranged in sequence, the first connecting member has a first mounting hole, and the second connecting member has a second mounting hole; a fastener is passed through the first mounting hole and the second mounting hole to detachably connect the first connecting member and the second connecting member.

[0034] With such an arrangement, the first connecting member and the second connecting member can be detachably connected by means of fasteners, and the connection method of the fasteners can ensure the connection strength between the second shell and the vertical wall portion.

[0035] In some embodiments of the present application, the first connecting member includes a connected load-bearing portion and a threaded portion, the load-bearing portion has a receiving hole, the threaded portion is inserted into the receiving hole, the first mounting hole is located in the threaded portion, and the first mounting hole is a threaded hole; one end of the fastener extends into the first mounting hole and is threadedly engaged with the first mounting hole, and the other end of the fastener is connected to the second connecting member.

[0036] With this arrangement, the threaded portion and the bearing portion can be made of different materials as needed, thereby extending the service life of the threaded hole on the threaded portion, improving the service life of the first connecting member, the second connecting member and the fastener, and also controlling costs.

[0037] In some embodiments of the present application, the first connecting member includes a first clamping protrusion, and the second connecting member includes a first clamping hole; the first clamping protrusion is clamped into the first clamping hole.

[0038] With such arrangement, the first clamping protrusion can be clamped into the first clamping hole, thereby realizing the detachable connection between the first connecting member and the second connecting member.

[0039] In some embodiments of the present application, the first shell includes two connected sub-shells, the sub-shells include a flat portion and a vertical wall portion, and along the second direction, the two sub-shells are buckled together to form a accommodating cavity, and the first direction intersects with the second direction; the buckling edge of one sub-shell has a notch, and the notch is opposite to the buckling edge of the other sub-shell to form an opening portion of the notch; or, the buckling edges of the two sub-shells both have a notch, and the two notches are opposite to form an opening portion of the notch.

[0040] With such arrangement, the opening portion of the notch can be formed by one recess or two recesses, which can facilitate the formation of the opening portion of the notch.

[0041] A second aspect of the present application provides an electrical device, comprising a battery device for providing electrical energy provided by any of the above embodiments.

[0042] In the technical solution of the embodiment of the present application, since the battery device in any of the above embodiments is included, the same beneficial effects can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0044] Figure 1 A schematic structural diagram of a vehicle provided for some embodiments of the present application;

[0045] Figure 2 An exploded schematic diagram of a battery device provided for some embodiments of the present application;

[0046] Figure 3 An exploded diagram of a battery management assembly, a second housing, and a detection module provided in some embodiments of the present application;

[0047] Figure 4 A schematic diagram of a first external structure of a battery management assembly, a second housing, and a detection module provided in some embodiments of the present application;

[0048] Figure 5 A schematic diagram of a first external structure of a first housing and a mating portion provided in some embodiments of the present application;

[0049] Figure 6 A schematic diagram of a second external structure of a battery management assembly, a second housing, and a detection module provided in some embodiments of the present application;

[0050] Figure 7 A schematic diagram of a second external structure of a first housing and a mating portion provided in some embodiments of the present application;

[0051] Figure 8 A schematic diagram of the assembly of a first housing and a mating portion provided for some embodiments of the present application;

[0052] Figure 9 for Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0053] Figure 10 A third external structural diagram of the battery management assembly, the second housing, and the detection module provided in some embodiments of the present application;

[0054] Figure 11 for Figure 10 A partial enlarged schematic diagram of point B in the middle;

[0055] Figure 12A schematic diagram of a third external structure of a first housing and a mating portion provided in some embodiments of the present application;

[0056] Figure 13 for Figure 6 A partial enlarged schematic diagram of point C in the middle;

[0057] Figure 14 A fourth external structural diagram of a battery management assembly, a second housing, and a detection module provided in some embodiments of the present application;

[0058] Figure 15 for Figure 14 A partial enlarged schematic diagram of point D in the middle;

[0059] Figure 16 A schematic diagram of the external structure of a battery management assembly provided in some embodiments of the present application;

[0060] Figure 17 for Figure 16 A partial enlarged schematic diagram of point E in the middle.

[0061] Description of Reference Numerals

[0062] 1000 - vehicle; 100 - battery device; 110 - housing; a - cavity; 111 - first housing portion; 112 - second housing portion; 120 - battery cell; 12 - battery cell assembly; 130 - battery management assembly; 131 - first housing; b - receiving chamber; c - detection space; d - airflow channel; d1 - first airflow channel; d2 - second airflow channel; e - avoidance space; 1311 - sub-housing; k1 - first sub-housing; k2 - second sub-housing; 13111 - flat plate portion; 13112 - vertical wall portion; f - notch; g - recess; j - air gap Flow channel; 1312-matching part; 132-battery management module; 140-second shell; 141-abutment part; h-opening; m-avoidance channel; 150-detection module; 151-detection body; 1511-light-emitting device; 1512-light-receiving device; 152-conductive member; 160-first connecting member; 161-first snap-fitting protrusion; 162-bearing part; 163-threaded part; 170-second connecting member; 171-first snap-fitting hole; 180-fastener; 200-controller; 300-motor; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0063] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0065] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify 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.

[0066] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0067] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0068] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0069] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0070] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0071] Below, this application is described in detail.

[0072] With the promotion and popularization of the green development concept, new energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, battery devices are also increasingly used in energy storage fields.

[0073] In existing battery systems, a battery device includes a housing, a battery management system (BMS), and a detection module. The detection module can generally be a smoke sensor, voltage sensor, current sensor, temperature sensor, pressure sensor, gas sensor, etc. The BMS is located within the housing. The BMS includes a first housing and a BMS. The first housing has a housing cavity within which the detection module and BMS are both located. The detection module is electrically connected to the BMS, controlled by the BMS, and monitors the status of the housing interior. To ensure the reliability of the battery device, the accuracy of the detection module's detection results is particularly important.

[0074] In the related technology, in the above-mentioned detection module, voltage sensors and current sensors mainly rely on electrical connections to realize detection functions, so they are generally not limited by the working environment. For example, the first shell is a closed space and does not affect the function realization of the voltage sensor and the current sensor. However, for gas sensors, smoke sensors and other sensors that need to directly contact the gas in the cavity to perform the detection function, the closed space of the first shell will affect the detection accuracy of the detection module.

[0075] To address this issue, the present application provides a battery device comprising a housing, a battery management assembly, a second housing, and a detection module. The housing has a cavity within it. The battery management assembly is disposed within the cavity. The battery management assembly comprises a first housing and a battery management module. The first housing has a housing within it, and the battery management module is disposed within the housing. The second housing is connected to the battery management assembly and, together with the first housing, forms a detection space. The walls of the detection space formed by the first and second housings are provided with airflow channels, connecting the cavity and the detection space. The detection module is disposed within the detection space and is electrically connected to the battery management module.

[0076] In this arrangement, the battery management component is disposed in a box body, and the box body provides physical protection for the battery management component. The battery management component includes a first outer shell and a battery management module. The first outer shell can provide physical protection for the battery management module. Since the detection module is electrically connected to the battery management module, the battery management module can also control the detection module to monitor the status inside the cavity.

[0077] Since the first shell and the second shell form a detection space, and the walls of the detection space formed by the first shell and the second shell are provided with an air flow channel connecting the cavity and the detection space, the gas inside the cavity can enter the detection space through the air flow channel. Since the detection module is arranged in the detection space, the detection module can detect the gas and judge the state inside the cavity based on the gas.

[0078] Furthermore, since the airflow channel is provided in the wall of the detection space enclosed by the first and second housings, it is easy to open the airflow channel and facilitate detection of the detection module. Moreover, since the detection space is enclosed by the first and second housings, the integration of the first and second housings is also ensured.

[0079] The present application also provides an electrical device including the aforementioned battery device for providing electrical energy. The electrical device may include, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, and the like. The electric toy may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. The spacecraft may include airplanes, rockets, space shuttles, and spacecraft.

[0080] In the following embodiments, for the convenience of description, the electric device of one embodiment of the present application is taken as an example of a vehicle.

[0081] Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended range vehicle. Figure 1As shown, a battery device 100 is disposed within vehicle 1000. Battery device 100 can be located at the bottom, front, or rear of vehicle 1000. Battery device 100 can be used to power vehicle 1000. For example, battery device 100 can serve as an operating power source for vehicle 1000. Vehicle 1000 can also include a controller 200 and a motor 300. Controller 200 is used to control battery device 100 to power motor 300, for example, to meet the power requirements of vehicle 1000 during startup, navigation, and driving.

[0082] In some embodiments of the present application, the battery device 100 can serve not only as an operating power source for the vehicle 1000 , but also as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0083] Figure 2 This is an exploded diagram of a battery device 100 provided in some embodiments of the present application. The battery device 100 described in the embodiments of the present application may also include one or more battery cell assemblies 12 for providing voltage and capacity. The battery cell assembly 12 may include multiple battery cells 120 connected in series, parallel, or in parallel via a busbar.

[0084] In some embodiments, a battery cell assembly 12 is typically formed by arranging multiple battery cells 120. For example, the battery cell assembly 12 may be a battery module, which is a battery module formed by arranging and securing multiple battery cells 120 to form a single module. For example, a battery module may be formed by bundling multiple battery cells 120 together using cable ties.

[0085] In some embodiments, as Figure 2 As shown, the battery device 100 may be a battery pack, which includes a box 110 and one or more battery cell assemblies 12 . The battery cell assemblies 12 are accommodated in a cavity a.

[0086] As an example, the battery cell assembly 12 may be a battery module, and the battery cell assembly 12 may be accommodated in the cavity a by fixing the battery module in the cavity a.

[0087] As an example, the battery cell assembly 12 may also be housed in the cavity a by directly fixing the plurality of battery cells 120 in the cavity a.

[0088] As an example, Figure 2As shown, the housing 110 may include a first housing portion 111 and a second housing portion 112. The first housing portion 111 and the second housing portion 112 engage to form an enclosed space within the housing 110, namely, cavity a, to accommodate the battery cell assembly 12. Enclosed here means covered or closed, and may be sealed or unsealed. The first housing portion 111 may be a top cover or a bottom plate.

[0089] In the embodiment of the present application, the battery cell 120 may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell 120 is discharged.

[0090] The battery cell 120 can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel metal hydride battery, a nickel cadmium battery, a lead storage battery, etc., which is not limited in the embodiments of the present application.

[0091] In addition, illustratively, the battery cell 120 can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, and a polygonal battery cell. The polygonal battery cell is, for example, a hexagonal battery cell, etc. There is no special limitation in the embodiments of the present application.

[0092] Below, refer to Figures 2 to 17 Some embodiments of the present application are described in detail.

[0093] In some embodiments of the present application, Figure 2-Figure 4 As shown, the present application provides a battery device 100, which includes a housing 110, a battery management assembly 130, a second housing 140, and a detection module 150. The housing 110 defines a cavity a. The battery management assembly 130 is disposed in cavity a. The battery management assembly 130 includes a first housing 131 and a battery management module 132. The first housing 131 defines a receiving cavity b, and the battery management module 132 is disposed in cavity b. The second housing 140 is connected to the battery management assembly 130 and, together with the first housing 131, forms a detection space c. The walls of the detection space c formed by the first and second housings 131, 140 are provided with an airflow channel d, which connects cavity a with the detection space c. The detection module 150 is disposed in detection space c and is electrically connected to the battery management module 132.

[0094] It should be noted that the first housing 131 and the second housing 140 may jointly enclose the detection space C, and the first housing 131 and the second housing 140 may directly participate in the detection space C, that is, the walls of the detection space C are the first housing 131 and the second housing 140. Alternatively, a portion of the walls of the first housing 131 and the second housing 140 may be arranged outside the detection space C, thereby participating in the reinforcement of the detection space C.

[0095] In addition, it can be understood that the second housing 140 is connected to the battery management assembly 130 , and the second housing 140 may be connected to the first housing 131 , or the second housing 140 may be connected to the battery management module 132 .

[0096] In some examples, the first housing 131 may be in a regular shape such as a cuboid or a cube, which can facilitate the processing and manufacturing of the first housing 131 .

[0097] In some examples, the battery management module 132 mainly includes a control board and related components disposed on the control board, and the detection module 150 in the present application is electrically connected to the control board.

[0098] In some examples, the cross section of the airflow channel d may be a grid shape, so that the airflow channel d can filter large debris from entering the detection space c, thereby improving the reliability of the second housing 140. Of course, the cross section of the airflow channel d may also be an annular hole.

[0099] In some examples, the detection module 150 in the present application may be a smoke sensor or an air sensor, etc., as long as it is a sensor that can detect the gas in the cavity a. For example, the smoke sensor may be a photoelectric smoke sensor or a gas-sensitive smoke sensor, etc.

[0100] In addition, the detection module 150 may be electrically connected to the battery management module 132 via a wire.

[0101] Through the above-mentioned setting, the battery management component 130 is arranged in the box body 110, and the box body 110 provides physical protection for the battery management component 130. The battery management component 130 includes a first shell 131 and a battery management module 132. The first shell 131 can physically protect the battery management module 132. Since the detection module 150 is electrically connected to the battery management module 132, the battery management module 132 can also control the detection module 150 to monitor the status inside the cavity a.

[0102] Since the first shell 131 and the second shell 140 enclose a detection space c, and the wall of the detection space c enclosed by the first shell 131 and the second shell 140 is provided with an air flow channel d connecting the cavity a and the detection space c, the gas inside the cavity a can enter the detection space c through the air flow channel d. Since the detection module 150 is arranged in the detection space c, the detection module 150 can detect the gas and judge the state inside the cavity a based on the gas.

[0103] In addition, since the airflow channel d is provided in the wall of the detection space c enclosed by the first housing 131 and the second housing 140, the airflow channel d can be easily opened, thereby facilitating detection by the detection module 150. Furthermore, since the detection space c is enclosed by the first housing 131 and the second housing 140, the integration of the first housing 131 and the second housing 140 is also ensured.

[0104] The relative positional relationship between the first housing 131 and the second housing 140 can be varied. For example, the second housing 140 can be located inside the first housing 131, that is, within the accommodation chamber b. Alternatively, the second housing 140 can be located outside the first housing 131. This is sufficient as long as the second housing 140 and the first housing 131 can together enclose the detection space c. The relative positions of the first housing 131 and the second housing 140 are described below.

[0105] In some embodiments of the present application, Figure 4 As shown, the first housing 131 has an escape space e formed by an inward recess, the second housing 140 is accommodated in the escape space e, and the detection space c is located in the escape space e.

[0106] It can be understood that, since the avoidance space e is formed by the inward depression of the first shell 131 , the avoidance space e should be located outside the first shell 131 , and the avoidance space e has a recessed opening.

[0107] The avoidance space e may be connected to the accommodating chamber b, or the avoidance space e may be disconnected from the accommodating chamber b. For example, the wall of the first housing 131 may be recessed inward to form a depression, and the space inside the depression serves as the avoidance space e. In this case, the avoidance space e is disconnected from the accommodating chamber b.

[0108] Through the above-mentioned setting, the detection space c is located in the avoidance space e, and the avoidance space e is located outside the first shell 131, so it is still possible to facilitate the communication between the detection space c and the cavity a. Moreover, since the second shell 140 is arranged in the avoidance space e, and the avoidance space e is a structure recessed toward the interior of the first shell 131, the first shell 131 is surrounded by the outside of the second shell 140, so that physical protection can be provided to the second shell 140 to ensure the reliability of the setting environment of the second shell 140, and thereby ensure the stability of the detection module 150 arranged in the detection space c.

[0109] In some embodiments of the present application, Figure 4 、 Figure 5 As shown, the first shell 131 includes a connected flat plate portion 13111, a vertical wall portion 13112 and a matching portion 1312. The flat plate portion 13111 extends along the first plane, the extension direction of the vertical wall portion 13112 is consistent with the extension direction of the matching portion 1312, and both are perpendicular to the flat plate portion 13111. The vertical wall portion 13112 has a notch f recessed into the accommodating cavity b along the first direction X. The matching portion 1312 is located at the notch f, and the notch f forms an avoidance space e. The matching portion 1312 is a wall of the avoidance space e.

[0110] It needs to be explained that the gap f is the avoidance space e. The gap f is a structure that is recessed inward along the first direction X. That is to say, the gap f is also a space with an opening h. The opening h of the gap f refers to the opening that is connected to the internal space of the gap f. Since the matching portion 1312 is a side wall of the avoidance space e, the avoidance space e and the accommodating cavity b can be divided with the matching portion 1312 as the boundary.

[0111] The mating portion 1312 can be arranged opposite to the opening h along the first direction X. The mating portion 1312 can be a structure extending along the second direction Y, which intersects the first direction X. For example, the first housing 131 is a rectangular parallelepiped structure. The width direction of the first housing 131 can be the first direction X, and the thickness direction of the first housing 131 can be the second direction Y. In other words, the second direction Y is the extension direction of the vertical wall portion 13112 and the mating portion 1312, and is perpendicular to the extension direction of the flat plate portion 13111.

[0112] Through the above-mentioned arrangement, an inwardly recessed notch f is provided on the vertical wall portion 13112 to form an avoidance space e, and the mating portion 1312 serves as a wall of the avoidance space e, and at the same time plays the role of isolating the avoidance space e and the accommodating cavity b, so that the avoidance space e is located outside the first shell 131, and the accommodating cavity b is formed inside the first shell 131, which facilitates the formation of the avoidance space e and the accommodating cavity b respectively.

[0113] Influenced by the opening portion of the notch f formed on the vertical wall portion 13112 , the structure of the first housing 131 is also diverse, which will be described in detail below.

[0114] In some embodiments of the present application, Figure 3 、 Figure 4 As shown, the first housing 131 includes two connected sub-shells 1311, each of which includes a flat portion 13111 and a vertical wall portion 13112. Along the second direction Y, the two sub-shells 1311 are engaged with each other to form an accommodating cavity b. The first direction X intersects the second direction Y. The engaging edge of one sub-shell 1311 has a notch g, which opposes the engaging edge of the other sub-shell 1311 to form an opening portion of a gap f.

[0115] The angle between the first direction X and the second direction Y can be 75°, 80°, 85°, or 90°, etc., and can be set as needed. For ease of understanding, this application uses the example of the first direction X and the second direction Y being perpendicular to each other. When the first housing 131 is a rectangular parallelepiped structure, the first direction X can be the width direction of the first housing 131, and the second direction Y can be the thickness direction of the first housing 131.

[0116] In some examples, both sub-shells 1311 are rectangular concave shell structures, which are shell-like structures with a groove. The bottom wall of the concave shell structure serves as the flat plate portion 13111, and the peripheral wall of the concave shell structure serves as part of the vertical wall portion 13112. Thus, when the two sub-shells 1311 are fastened together, the edges of the peripheral walls of the two concave shell structures facing away from the bottom wall serve as the fastening edges, and the peripheral walls of the two concave shell structures form the vertical wall portion 13112, while the bottom wall of one of the concave shell structures serves as the flat plate portion 13111. This arrangement not only facilitates the formation of the notch f, but also facilitates the formation of the accommodating cavity b.

[0117] The two sub-shells 1311 are detachably connected, so as to facilitate the installation and removal of components such as the battery management module 132 inside the accommodating cavity b.

[0118] Exemplarily, the two sub-shells 1311 are removably connected by means of a coupling arm and a coupling hole. Specifically, one of the coupling arm and the coupling hole is provided on one sub-shell 1311, and the other of the coupling arm and the coupling hole is provided on the other sub-shell 1311. Along the second direction Y, the coupling arm extends into the coupling hole to couple the coupling arm and the coupling hole, thereby achieving removable connection between the two sub-shells 1311.

[0119] The number of both the clamping arms and the clamping holes can be multiple, and they can be arranged in a one-to-one correspondence. The multiple clamping arms are arranged around the first housing 131 along the second direction Y, and the multiple clamping holes are arranged around the first housing 131 along the second direction Y. The corresponding clamping arms extend into the corresponding clamping holes to achieve the clamping connection. This arrangement can ensure the stability of the connection between the two sub-shells 1311 along the circumference of the first housing 131, thereby ensuring the overall reliability of the first housing 131.

[0120] In some examples, the shape of the notch g can be a regular shape such as a semicircle or a square, which can facilitate processing. Alternatively, the notch g can also be an irregular shape, which can be selected and set according to needs.

[0121] In some examples, the battery management module 132 can be located near the plane where the snap-fit ​​surfaces of the two sub-shells 1311 are located, and the plane where the battery management module 132 is located is parallel to or coincides with the plane where the snap-fit ​​surfaces are located. For example, the battery management module 132 includes a control board, and the plane where the control board is located is parallel to or coincides with the plane where the snap-fit ​​surfaces are located.

[0122] Through the above arrangement, the main body of the first housing 131 is formed by the fastening of two sub-housings 1311. This not only facilitates the formation of the accommodating cavity b and the avoidance space e, but also facilitates the placement of the battery management module 132 within the accommodating cavity b. Furthermore, a notch g can be provided on one sub-housing 1311. When the two sub-housings 1311 are fastened together, the notch g and the fastening edge of the other sub-housing 1311 face each other to form the opening of the notch f, thus also facilitating the formation of the opening of the notch f.

[0123] In other embodiments of the present application, Figure 3 、 Figure 6 As shown, the first housing 131 includes two connected sub-housings 1311, each of which includes a flat portion 13111 and a vertical wall portion 13112. Along the second direction Y, the two sub-housings 1311 interlock to form an accommodating cavity b. The first direction X intersects the second direction Y. The interlocking edges of the two sub-housings 1311 each have a notch g, which opposes each other to form an opening of a gap f.

[0124] Through the above arrangement, the main portion of the first housing 131 is formed by the two sub-housings 1311 fastening together. This not only facilitates the formation of the accommodating cavity b and the avoidance space e, but also facilitates the placement of the battery management module 132 within the accommodating cavity b. Furthermore, notches g can be provided on the fastening edges of the two sub-housings 1311. When the two sub-housings 1311 are fastened together, the two notches g face each other to form the opening of the notch f, thus also facilitating the formation of the opening of the notch f.

[0125] The detection space c can be formed in various ways. For example, the second housing 140 and the mating portion 1312 can be engaged to form the detection space c. Alternatively, the detection space c can be formed within the second housing 140, and then the first housing 131 can be positioned outside the second housing 140 and attached to the outer wall of the second housing 140, thereby forming the detection space c. This is described in detail below.

[0126] In some embodiments of the present application, Figure 3-Figure 9 As shown, the second housing 140 has an opening h, which is opposite to and engaged with the matching portion 1312 to form a detection space c.

[0127] In this case, the detection space c is formed by the mating portion 1312 and the second housing 140. For example, along the first direction X, the mating portion 1312 and the second housing 140 are arranged relative to each other to enclose the detection space c. Because the notch f is recessed along the first direction X, the engagement direction of the mating portion 1312 and the second housing 140 is consistent with the recessed direction of the notch f, which facilitates actual operation.

[0128] After the opening h is engaged with the matching portion 1312 , the second housing 140 may be connected to the matching portion 1312 , or the second housing 140 may be connected to other parts of the battery management assembly 130 .

[0129] In addition, the shape of the opening h may be a regular shape such as a square or a circle, or may be an irregular shape.

[0130] Through the above arrangement, after the second housing 140 is placed in the avoidance space e, the opening h and the matching portion 1312 can be engaged with each other to form the detection space c, which facilitates the formation of the detection space c.

[0131] On this basis, the wall of the detection space c surrounded by the first shell 131 and the second shell 140 has an airflow channel d, so the airflow channel d can be located on the matching part 1312, or it can be located on the second shell 140, or both the matching part 1312 and the second shell 140 have an airflow channel d, which is introduced in detail below.

[0132] In some embodiments of the present application, Figure 5-Figure 7 As shown, the flat plate portion 13111 is recessed into the accommodating cavity b along the second direction Y to form an airflow groove j. The airflow groove j and the avoidance space e are respectively located on both sides of the matching portion 1312. The airflow channel d includes a first airflow channel d1 arranged on the matching portion 1312. The first airflow channel d1 connects the detection space c with the airflow groove j. The first direction X intersects with the second direction Y.

[0133] The first airflow channel d1 may extend along the first direction X on the mating portion 1312 , with the first direction X being perpendicular to the second direction Y. With this arrangement, the first airflow channel d1 and the airflow slot j are arranged perpendicularly, which facilitates the arrangement of the first airflow channel d1 and the airflow slot j, and facilitates the gas in the cavity a to enter the detection space c through the airflow slot j, the first airflow channel d1, and the opening h.

[0134] In addition, the cross section of the air flow groove j may be a regular shape such as a square or a circle, or the cross section of the air flow groove j may be an irregular shape.

[0135] With the above arrangement, the first airflow channel d1 can be used to connect the detection space c with the airflow slot j, allowing the gas within the cavity a to enter the detection space c through the airflow slot j and the first airflow channel d1. Because the airflow slot j is recessed along the second direction Y, the first airflow channel d1 is positioned to one side of the detection space c in the first direction X. Therefore, the length of the first airflow channel d1 can be shortened in the first direction X, thereby facilitating the arrangement of the first airflow channel d1 and allowing particulate matter within the cavity a to quickly pass through the first airflow channel d1 and enter the detection space c.

[0136] In some embodiments of the present application, Figure 6-Figure 7 As shown, the air flow channel d further includes a second air flow channel d2 provided on the second housing 140 , and the second air flow channel d2 connects the detection space c with the cavity a.

[0137] That is, the number of the air flow channels d is at least two, and the at least two air flow channels d include a first air flow channel d1 and a second air flow channel d2.

[0138] In some examples, along the first direction X, the first airflow channel d1 and the second airflow channel d2 are located on the same extension path, so that the first airflow channel d1 and the second airflow channel d2 can form convection, which can facilitate the gas in the cavity a to enter the detection space c through the first airflow channel d1, and then be discharged from the detection space c through the second airflow channel d2, or, it can facilitate the gas in the cavity a to enter the detection space c through the second airflow channel d2, and then be discharged from the detection space c through the first airflow channel d1, that is, the first airflow channel d1 and the second airflow channel d2, one of which acts as an air inlet channel and the other acts as an air outlet channel, so that the gas in the cavity a can flow in the detection space c, thereby improving the detection sensitivity of the detection module 150.

[0139] Through the above-mentioned arrangement, along the first direction X, the two opposite sides of the second shell 140 are provided with air flow channels d, that is, the first air flow channel d1 and the second air flow channel d2, so that the gas in the cavity a can enter the detection space c through the first air flow channel d1, and then be discharged from the detection space c through the second air flow channel d2, or the gas in the cavity a can enter the detection space c through the second air flow channel d2, and then be discharged from the detection space c through the first air flow channel d1. The first air flow channel d1 and the second air flow channel d2 can form convection, which can facilitate the smooth flow of the gas in the cavity a in the detection space c, facilitate the detection of the detection module 150, and improve the detection sensitivity of the detection module 150.

[0140] The type of detection module 150 can be selected and configured as needed. When the detection module 150 is a photoelectric smoke sensor, the positions of the first airflow channel d1 and the second airflow channel d2, as well as the position of the detection module 150, need to be specifically designed to facilitate the detection module 150 to detect gas entering the detection space c. This is described in detail below.

[0141] In some embodiments of the present application, Figure 8 As shown, the detection module 150 includes two detection bodies 151, and the two detection bodies 151 include a light-emitting device 1511 and a light-receiving device 1512. The light-receiving device 1512 is used to receive the amount of light emitted by the light-emitting device 1511. The second air flow channel d2 is arranged on the wall opposite to the matching part 1312 of the second shell 140. Along the first direction X, the first air flow channel d1 and the second air flow channel d2 are arranged opposite to each other, and a flow channel extending along the first direction X is formed between the first air flow channel d1 and the second air flow channel d2. The light-emitting device 1511 and the light-receiving device 1512 are respectively arranged on both sides of the flow channel.

[0142] That is to say, the light-emitting device 1511 and the light-receiving device 1512 are located on both sides of the convective airflow formed between the first airflow channel d1 and the second airflow channel d2. In this way, when the gas entering the detection space c contains particulate matter, the gas can pass through the light-emitting device 1511 and the light-receiving device 1512, so that the particulate matter in the gas can sensitively contact the light emitted by the light-emitting device 1511, thereby changing the emission direction of the light, so as to change the amount of light received by the light-receiving device 1512, thereby accurately judging the environment in the cavity a.

[0143] For example, when the amount of light received by the light-emitting device 1511 by the light-receiving device 1512 is lower than the threshold, it can be judged that the content of particulate matter in the gas in the detection space c is too high, that is, the content of particulate matter in the gas in the cavity a is too high. At this time, an alarm is required to indicate that a fire may occur in the cavity a.

[0144] When the amount of light received by the light-emitting device 1511 by the light-receiving device 1512 is higher than the threshold, it can be judged that the content of particulate matter in the gas in the detection space c is within a safe range, thereby judging that the content of particulate matter in the gas in the cavity a is within a safe range, and thus detecting that no fire has occurred in the cavity a.

[0145] In some examples, the detection module 150 may include, in addition to the detection body 151, a conductive member 152. One end of the conductive member 152 is electrically connected to the detection body 151, and the other end of the conductive member 152 is electrically connected to the battery management module 132. The provision of the conductive member 152 facilitates the electrical connection between the detection body 151 and the battery management module 132.

[0146] Through the above setting, the detection module 150 is a smoke sensor. In this way, when particulate matter is generated in cavity a, the gas doped with particulate matter can enter the detection space c, and the particulate matter in the gas can change the emission direction of the light emitted by the light-emitting device 1511, thereby changing the amount of light received by the light-receiving device 1512, thereby detecting and judging the state in cavity a. For example, when the amount of light received by the light-receiving device 1512 is lower than the threshold value, it means that the particulate matter content in the gas is too high, and a fire may occur in cavity a. At this time, an alarm is issued. When the amount of light received by the light-receiving device 1512 is higher than the threshold value, it means that the particulate matter content in the gas is within a safe range and no fire has occurred in cavity a.

[0147] Since the light emitting device 1511 and the light receiving device 1512 are respectively arranged on both sides of the flow channel, the gas containing particulate matter can pass between the light emitting device 1511 and the light receiving device 1512, which can improve the accuracy of the detection result.

[0148] In some embodiments of the present application, Figure 9 As shown, the second housing 140 further includes an abutting portion 141 extending toward the interior of the accommodating cavity b along the first direction X. Along the second direction Y, an escape gap is defined between the battery management module 132 and the mating portion 1312 , and the abutting portion 141 is inserted into the escape gap.

[0149] In some examples, along the second direction Y, the control board of the battery management module 132 can be disposed on one side of the detection space c and opposite the mating portion 1312. The second housing 140 is entirely supported on the control board of the battery management module 132, and a clearance gap is formed between the control board of the battery management module 132 and the mating portion 1312. That is, after the abutting portion 141 is inserted into the clearance gap, the abutting portion 141 abuts between the mating portion 1312 and the control board of the battery management module 132. In this arrangement, the control board of the battery management module 132 can provide stable support for the second housing 140 in the second direction Y. At the same time, the control board of the battery management module 132 and the mating portion 1312 can clamp the abutting portion 141 in the second direction Y, thereby further ensuring the stability of the second housing 140 in the second direction Y.

[0150] Through the above arrangement, along the first direction X, after the opening h and the mating portion 1312 are engaged, along the second direction Y, the abutting portion 141 will be clamped between the mating portion 1312 and the battery management module 132, thereby ensuring the stability of the second shell 140 in the second direction Y.

[0151] In some embodiments of the present application, Figure 9 As shown, the detection module 150 includes a detection body 151 and a conductive member 152, and the detection body 151 is arranged in the detection space c; the abutment portion 141 has an avoidance channel m, one end of the conductive member 152 is electrically connected to the detection body 151, and the other end of the conductive member 152 passes through the avoidance channel m and is electrically connected to the battery management module 132.

[0152] The conductive member 152 may be a conductive wire or a conductive terminal.

[0153] In addition, the avoidance channel m may extend along the first direction X, or the avoidance channel m may be a bent channel, as long as the avoidance channel m can connect the opening h and the cavity a.

[0154] In some examples, there are two detection bodies 151, each including a light emitting device 1511 and a light receiving device 1512. There are also two conductive members 152 and two avoidance channels m. The two conductive members 152 are provided corresponding to the two avoidance channels m and are also provided corresponding to the light emitting device 1511 and the light receiving device 1512. In other words, the light emitting device 1511 is electrically connected to the battery management module 132 via the corresponding conductive member 152, and the conductive member 152 is located in the corresponding avoidance channel m. The light receiving device 1512 is electrically connected to the battery management module 132 via the corresponding conductive member 152, and the conductive member 152 is located in the corresponding avoidance channel m.

[0155] In some examples, along the second direction Y, the avoidance channel m passes through the abutting portion 141 , which facilitates the opening of the avoidance channel m.

[0156] Through the above arrangement, the detection body 151 is responsible for detection, while the conductive member 152 is responsible for electrically connecting the detection body 151 and the battery management module 132. Because the abutment portion 141 includes an escape channel m connecting the accommodating cavity b and the opening h, the conductive member 152 can be used to facilitate electrical connection between the battery management module 132 located in the accommodating cavity b and the detection body 151 located in the detection space c. Furthermore, the provision of the escape channel m ensures that the conductive member 152 can electrically connect the detection body 151 and the battery management module 132 while maintaining a stable arrangement of the second housing 140.

[0157] After the second housing 140 is positioned within the avoidance space c, a stable connection needs to be established between the second housing 140 and the battery management assembly 130 to ensure the stability of the second housing 140. For example, the second housing 140 and the battery management assembly 130 may be detachably connected, or may be non-detachably connected through welding or one-piece molding. The connection between the second housing 140 and the battery management assembly 130 is described in detail below.

[0158] In some embodiments of the present application, Figures 9-17 As shown, the battery device 100 also includes a first connector 160 and a second connector 170, one of the first connector 160 and the second connector 170 is arranged on the second shell 140, and the other of the first connector 160 and the second connector 170 is arranged on the battery management component 130, and the first connector 160 and the second connector 170 are detachably connected.

[0159] It can be understood that the other of the first connector 160 and the second connector 170 is arranged in the battery management component 130, and the other of the first connector 160 and the second connector 170 is arranged in the matching portion 1312, the battery management module 132 or the vertical wall portion 13112, etc., and the specific selection should be made according to the different setting positions of the first connector 160 and the second connector 170.

[0160] The detachable connection between the first connecting member 160 and the second connecting member 170 may be a snap connection or a connection with a fastener 180 .

[0161] Through the above arrangement, since one of the first connector 160 and the second connector 170 is provided on the second shell 140, and the other of the first connector 160 and the second connector 170 is provided on the battery management assembly 130, the second shell 140 and the battery management assembly 130 can be detachably connected through the detachable connection between the first connector 160 and the second connector 170, and the detachable connection can facilitate the installation, disassembly and replacement of the second shell 140.

[0162] In some embodiments of the present application, Figures 9-13 As shown, the first connecting member 160 includes a first engaging protrusion 161 , and the second connecting member 170 includes a first engaging hole 171 . The first engaging protrusion 161 is engaged with the first engaging hole 171 .

[0163] In order to realize the locking of the first locking protrusion 161 and the first locking hole 171, the first locking protrusion 161 can be locked by interference fit with the first locking hole 171. Alternatively, the locking can be realized by a snap-fit ​​structure.

[0164] Through the above arrangement, the first snap-fit ​​protrusion 161 can be snapped into the first snap-fit ​​hole 171 to achieve detachable connection between the first connector 160 and the second connector 170. The snap-fit ​​connection method is relatively simple and can facilitate installation and disassembly between the second housing 140 and the battery management assembly 130.

[0165] In some embodiments of the present application, Figure 3 、 Figure 9 As shown, along the second direction Y, the battery management module 132 is located on one side of the avoidance space e, and the second shell 140 is supported on the battery management module 132, and the other of the first connecting member 160 and the second connecting member 170 is provided on the battery management module 132, and the first connecting member 160 and the second connecting member 170 are opposite and clamped.

[0166] The number of the first connector 160 and the number of the second connector 170 can each be one, or the number of the first connector 160 and the number of the second connector 170 can each be multiple, and the first connector 160 and the corresponding second connector 170 can be detachably connected. For example, the number of the first connector 160 and the number of the second connector 170 can each be two.

[0167] In some examples, the first connecting member 160 includes a first snap-fitting protrusion 161, the second connecting member 170 includes a first snap-fitting hole 171, the first snap-fitting protrusion 161 is provided on the second shell 140, and the first snap-fitting hole 171 is provided on the battery management module 132. For example, the first snap-fitting hole 171 is provided on the control panel of the battery management module 132, so that along the second direction Y, the first snap-fitting protrusion 161 can be snapped into the first snap-fitting hole 171.

[0168] In some examples, the first housing includes two detachably connected sub-housings 1311, the two sub-housings 1311 including a first sub-housing k1 and a second sub-housing k2, the mating portion 1312 is connected to a flat portion located on the second sub-housing k2, and the second housing 140 is provided with an abutment portion 141. Thus, when installing the second housing 140 and the battery management module 132, the battery management module 132 can be first placed within the first sub-housing k1, and then the second housing 140 can be snapped onto the battery management module 132 along the second direction Y, and the detection body 151 can be connected within the second housing 140. The detection body 151 and the battery management module 132 are then electrically connected using the conductive member 152, and the conductive member 152 is placed within the avoidance channel m. Then, along the second direction Y, the second sub-shell k2 is buckled onto the first sub-shell k1. At this time, the abutment portion 141 will be clamped between the mating portion 1312 and the battery management module 132. At the same time, the mating portion 1312 will be buckled with the opening h of the second shell 140 to form a detection space c, thereby realizing the assembly of the battery management component 130, the second shell 140, and the detection module 150.

[0169] Through the above-mentioned setting, the second shell 140 and the battery management module 132 can be snapped together in the second direction Y by snapping together the first connecting member 160 and the second connecting member 170. The snap-fit ​​connection method can facilitate the connection and disassembly between the second shell 140 and the battery management module 132.

[0170] In some embodiments of the present application, Figure 10-13 As shown, the other of the first connecting member 160 and the second connecting member 170 is disposed on the matching portion 1312. Along the first direction X, the first connecting member 160 and the second connecting member 170 are opposite to each other and engaged with each other.

[0171] In some examples, the first connecting member 160 includes a first snap-fitting protrusion 161, the second connecting member 170 includes a first snap-fitting hole 171, the first snap-fitting protrusion 161 is provided on the mating portion 1312, the first snap-fitting hole 171 is provided on the second shell 140, and along the first direction X, the first snap-fitting hole 171 passes through the second shell 140, so that along the first direction X, the first snap-fitting protrusion 161 can extend into and snap into the first snap-fitting hole 171.

[0172] In some examples, the first housing includes two detachably connected sub-shells 1311, the two sub-shells 1311 include a first sub-shell k1 and a second sub-shell k2, and the mating portion 1312 is connected to the flat portion 13111 located on the second sub-shell k2. When assembling the second housing 140 and the battery management assembly 130, the detection module 150 is first installed in the first sub-shell k1, and then the detection module 150 is connected (for example, welded) to the upper side of the control board of the battery management module 132, and then along the second sub-shell k1. In the second direction Y, the second sub-shell k2 is snapped onto the first sub-shell k1, so that the detection module 150 is located between the opening of the notch and the matching portion 1312, that is, in the avoidance space e. Then, along the first direction X, the second shell 140 is extended into the avoidance space e, and the detection module 150 is smoothly inserted into the second shell 140. Finally, the second shell 140 is extended into place, and the first connecting member 160 and the second connecting member 170 are engaged, thereby achieving the engagement between the second shell 140 and the matching portion 1312.

[0173] Through the above arrangement, the second shell 140 and the matching portion 1312 can be snapped together in the first direction X by snapping together the first connecting member 160 and the second connecting member 170. The snapping connection method can facilitate the connection and disassembly between the second shell 140 and the matching portion 1312.

[0174] In some embodiments of the present application, Figure 14-17 As shown, the other of the first and second connecting members 160, 170 is disposed on the vertical wall portion 13112, and the first and second connecting members 160, 170 are located outside the notch f. The first and second connecting members 160, 170 are sequentially arranged along the second direction Y. The first connecting member 160 has a first mounting hole, and the second connecting member 170 has a second mounting hole. Fasteners 180 pass through the first and second mounting holes to detachably connect the first and second connecting members 160, 170.

[0175] It should be explained that when the connection method using the fastener 180 is used for connection, if the connection method using the snap-on connection does not conflict, then the two connection methods can coexist.

[0176] In some examples, the first connecting member 160 and the second connecting member 170 are both plate-shaped structures, and along the second direction Y, the first mounting hole passes through the first connecting member 160, and the second mounting hole passes through the second connecting member 170. In this way, along the second direction Y, the fastener 180 can pass through the first mounting hole and the second mounting hole in sequence, thereby achieving a detachable connection.

[0177] The fastener 180 may be a screw or a bolt.

[0178] Through the above-mentioned arrangement, the fastener 180 can be used to realize the detachable connection between the first connector 160 and the second connector 170. Since one of the first connector 160 and the second connector 170 is arranged on the vertical wall portion, and the other of the first connector 160 and the second connector 170 is arranged on the battery management component 130, the battery management component 130 and the vertical wall portion 13112 can be connected, and then the battery management component 130 and the second shell 140 can be connected. The connection method of the fastener 180 can ensure the connection strength between the second shell 140 and the battery management component 130.

[0179] In some embodiments of the present application, Figure 14-17 As shown, the first connector 160 includes a load-bearing portion 162 and a threaded portion 163 connected to each other. The load-bearing portion 162 has a receiving hole, and the threaded portion 163 is disposed within the receiving hole. The first mounting hole is located within the threaded portion 163. The first mounting hole is a threaded hole. One end of the fastener 180 extends into the first mounting hole and engages with the first mounting hole. The other end of the fastener 180 is connected to the second connector 170.

[0180] At least one of the bearing portion 162 and the threaded portion 163 is connected to the battery management assembly 130, and the second connector 170 is connected to the second housing 140. Alternatively, at least one of the bearing portion 162 and the threaded portion 163 is connected to the second housing 140, and the second connector 170 is connected to the battery management assembly 130.

[0181] Exemplarily, the bearing portion 162 is connected to the first shell 131, the second connecting member 170 is connected to the second shell 140, and the fastener 180 includes a bolt, which extends from the side of the second connecting member 170 away from the first connecting member 160 into the second mounting hole, and then extends into the first mounting hole, and is threadedly connected to the first mounting hole, and the head of the bolt abuts against the side of the second connecting member 170 away from the first connecting member 160, thereby realizing the detachable connection between the first connecting member 160 and the second connecting member 170.

[0182] In addition, the bearing portion 162 can be made of ordinary connecting materials, such as lightweight materials such as aluminum and plastic, and the threaded portion 163 can be made of high-strength alloy materials, etc. This can improve the wear resistance of the threaded portion 163 and increase its service life.

[0183] Through the above-mentioned arrangement, the threaded portion 163 and the bearing portion 162 can be made of different materials as needed. For example, the bearing portion 162 can be made of a material with lower strength, and the threaded portion 163 can be made of a material with higher strength. This can extend the service life of the threaded hole on the threaded portion 163, improve the service life of the matching connection between the first connecting member 160, the second connecting member 170 and the fastener 180, and also control costs.

[0184] A second aspect of the present application further provides an electrical device comprising the battery device 100 for providing electrical energy provided in any of the above embodiments. Because the electrical device comprises the battery device 100 in any of the above embodiments, the detection accuracy of the detection module 150 is improved, as well as the integration of the first housing 131 and the second housing 140 is improved.

[0185] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A battery device, characterized in that: include: a box body having a cavity therein; A battery management component is provided in the cavity; the battery management component includes a first housing and a battery management module, the first housing has an accommodating cavity inside, and the battery management module is provided in the accommodating cavity; a second housing connected to the battery management assembly and enclosing a detection space with the first housing, wherein a wall of the detection space enclosed by the first and second housings is provided with an air flow channel, the air flow channel connecting the cavity and the detection space; The detection module is arranged in the detection space and is electrically connected to the battery management module.

2. The battery device according to claim 1, wherein: The first shell has an escape space formed by an inward depression, the second shell is accommodated in the escape space, and the detection space is located in the escape space.

3. The battery device according to claim 2, wherein: The first shell includes a connected flat plate portion, a vertical wall portion and a matching portion, the flat plate portion extends along a first plane, the extension direction of the vertical wall portion is consistent with the extension direction of the matching portion, and both are perpendicular to the flat plate portion, the vertical wall portion has a notch recessed into the accommodating cavity along the first direction, the matching portion is located at the notch, the notch forms the avoidance space, and the matching portion is a wall of the avoidance space.

4. The battery device according to claim 3, characterized in that The second housing has an opening, and the opening is opposite to and engaged with the matching portion to form the detection space.

5. The battery device according to claim 4, characterized in that The flat plate portion is recessed into the accommodating cavity along the second direction to form an airflow groove, the airflow groove and the avoidance space are respectively located on both sides of the matching portion, the airflow channel includes a first airflow channel arranged on the matching portion, the first airflow channel connects the detection space with the airflow groove, and the first direction intersects with the second direction.

6. The battery device according to claim 5, characterized in that The air flow channel further includes a second air flow channel provided on the second housing, and the second air flow channel connects the detection space with the cavity.

7. The battery device according to claim 6, characterized in that The detection module includes two detection bodies, and the two detection bodies include a light-emitting device and a light-receiving device. The light-receiving device is used to receive the amount of light emitted by the light-emitting device. The second air flow channel is arranged on the wall of the second shell opposite to the mating part. Along the first direction, the first air flow channel and the second air flow channel are arranged opposite to each other, and a flow channel extending along the first direction is formed between the first air flow channel and the second air flow channel. The light-emitting device and the light-receiving device are respectively arranged on both sides of the flow channel.

8. The battery device according to claim 5, characterized in that The second shell also includes an abutment portion, which extends toward the interior of the accommodating cavity along the first direction; along the second direction, there is an avoidance gap between the battery management module and the matching portion, and the abutment portion is inserted into the avoidance gap.

9. The battery device according to claim 8, characterized in that The detection module includes a detection body and a conductive member, and the detection body is arranged in the detection space; The abutting portion has an avoidance channel, one end of the conductive member is electrically connected to the detection body, and the other end of the conductive member passes through the avoidance channel and is electrically connected to the battery management module.

10. The battery device according to any one of claims 5 to 9, characterized in that: The battery device also includes a first connector and a second connector, one of the first connector and the second connector is arranged on the second shell, the other of the first connector and the second connector is arranged on the battery management component, and the first connector and the second connector are detachably connected.

11. The battery device according to claim 10, characterized in that Along the second direction, the battery management module is located on one side of the avoidance space, and the second shell is supported by the battery management module, the other of the first connector and the second connector is arranged on the battery management module, and the first connector is opposite to and clamped with the second connector.

12. The battery device according to claim 10, wherein: The other of the first connecting member and the second connecting member is disposed on the matching portion; along the first direction, the first connecting member is opposite to and locked with the second connecting member.

13. The battery device according to claim 10, wherein: The other of the first connecting member and the second connecting member is arranged on the vertical wall portion, and the first connecting member and the second connecting member are located at the notch; along the second direction, the first connecting member and the second connecting member are arranged in sequence, the first connecting member has a first mounting hole, and the second connecting member has a second mounting hole; a fastener is passed through the first mounting hole and the second mounting hole to detachably connect the first connecting member and the second connecting member.

14. The battery device according to claim 13, wherein: The first connecting member includes a bearing portion and a threaded portion connected to each other, the bearing portion has a receiving hole, the threaded portion is inserted into the receiving hole, the first mounting hole is located in the threaded portion, and the first mounting hole is a threaded hole; One end of the fastener extends into the first mounting hole and is threadedly engaged with the first mounting hole, and the other end of the fastener is connected to the second connecting member.

15. The battery device according to claim 10, characterized in that The first connecting member includes a first clamping protrusion, and the second connecting member includes a first clamping hole; the first clamping protrusion is clamped into the first clamping hole.

16. The battery device according to claim 3, characterized in that The first housing includes two connected sub-shells, each sub-shell including the flat plate portion and the vertical wall portion. The two sub-shells are buckled together along the second direction to form the accommodating cavity, and the first direction intersects the second direction. The buckling edge of one of the sub-shells has a notch, and the notch is opposite to the buckling edge of the other sub-shell to form an opening portion of the notch; or, The buckling edges of the two sub-shells are both provided with notches, and the two notches are opposite to each other to form an opening portion of the gap.

17. An electrical device, characterized in that: include: The battery device according to any one of claims 1 to 16 for providing electrical energy.

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