High-voltage power distribution apparatus, battery and electrical apparatus

Abstract

A high-voltage power distribution apparatus (400), a battery (100) and an electrical apparatus. The high-voltage power distribution apparatus (400) comprises a housing (40), a cover body (41) and a low-voltage terminal (42); the housing (40) has an opening; the cover body (41) seals the opening, and forms a mounting chamber with the housing (40); the low-voltage terminal (42) is integrated onto a target member, the target member being the housing (40) or the cover body (41); a first end of the low-voltage terminal (42) is exposed outside the mounting chamber, and a second end of the low-voltage terminal (42) is electrically connected to a low-voltage circuit inside the housing (40); at least one side wall of the target member is provided with a protective housing (43) having an outward opening; the first end of the low-voltage terminal (42) is located inside the protective housing (43). With regard to the high-voltage power distribution apparatus (400), the battery (100) and the electrical apparatus, the number of components inside the high-voltage power distribution apparatus (400) can be reduced to some extent, thus reducing the area occupied by the high-voltage power distribution apparatus (400).

Description

High-voltage distribution equipment, batteries and power-consuming devices

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 29, 2023, with application number 202323249361.3 and invention name “High-voltage distribution device, battery and electrical device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of battery technology, and in particular relates to a high-voltage power distribution device, a battery, and an electrical device. Background Art

[0003] Power batteries are now widely used in automotive systems and energy storage systems due to their high capacity, compact size, light weight, low self-discharge coefficient, pollution-free operation, and long life. Currently, battery systems require an additional high-voltage distribution box to manage and monitor power distribution within the battery box. This high-voltage distribution box, as used in related technologies, requires a large number of components.

[0004] Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a high-voltage power distribution device, a battery, and a power-consuming device, aiming to improve the technical problem of a large number of components required for the high-voltage power distribution device. Technical Solutions

[0006] The technical solution adopted in the embodiment of this application is:

[0007] In a first aspect, an embodiment of the present application provides a high-voltage power distribution device, comprising: a housing having an opening; a cover body, covering the opening and forming an installation cavity with the housing; and a low-voltage terminal, integrated on a target part, the target part being the housing or the cover body, the first end of the low-voltage terminal being exposed outside the installation cavity, and the second end of the low-voltage terminal being electrically connected to the low-voltage circuit in the housing.

[0008] The high-voltage power distribution device provided in the embodiment of the present application integrates the low-voltage terminals of the low-voltage connector originally located outside the high-voltage box into the outer shell or cover of the high-voltage box. Compared with the related art in which the low-voltage connectors are set separately, the shell part of the low-voltage connector can be omitted, which can reduce the number of components in the high-voltage power distribution device to a certain extent, reduce the floor space, simplify the assembly process of the high-voltage power distribution device, and at the same time reduce the overall material usage of the high-voltage distribution device and reduce costs.

[0009] In some embodiments, at least one sidewall of the target component is provided with a groove, and the first end of the low-voltage terminal is located within the groove. The target component is generally an insulating component. Using the solution provided in this embodiment, the portion of the low-voltage terminal exposed from the target component can be located within the groove, which can reduce the risk of foreign objects catching on or colliding with the low-voltage terminal. It can also reduce the risk of rainwater and other substances falling on the low-voltage terminal, thereby improving the safety of the high-voltage power distribution device.

[0010] In some embodiments, at least one side wall of the target component is provided with a protective shell with an outward opening, and the first end of the low-voltage terminal is located within the protective shell. Using the solution provided by this embodiment, the portion of the low-voltage terminal exposed from the target component can be located within the protective shell, which can reduce the risk of foreign objects catching on or colliding with the low-voltage terminal to a certain extent, and can also reduce the risk of rainwater and other substances falling on the low-voltage terminal, thereby improving the safety of the high-voltage power distribution device to a certain extent.

[0011] In some embodiments, the protective shell is embedded in the target part. The solution provided by this embodiment can improve the connection stability between the protective shell and the target part to a certain extent and reduce the space occupied by the assembly of the protective shell and the target part.

[0012] In some embodiments, at least a portion of the protective shell protrudes from the sidewall of the target part, so that the size of the protective shell is not limited by the size of the target part, which facilitates design.

[0013] In some embodiments, there are multiple low-voltage terminals, and they are spaced apart according to a preset arrangement, and the protective shell is provided with an identification structure for identifying the preset arrangement. Since different low-voltage terminals generally have different functions, terminals with the same function need to be connected accordingly when the low-voltage terminal is connected to an external low-voltage device. If the connection is wrong, the corresponding electronic components in the high-voltage distribution device and / or the external low-voltage device may be damaged. By adopting the solution provided in this embodiment, the accuracy of the assembly direction when assembling the connection terminals of the external low-voltage device and the low-voltage terminals can be improved to a certain extent, the risk of wrong connection can be reduced to a certain extent, the safety of use can be improved, and the rework caused by wrong connection can be reduced to a certain extent, and the assembly efficiency can be improved to a certain extent.

[0014] In some embodiments, there are multiple low-voltage terminals, and they are spaced apart according to a preset arrangement, wherein the preset arrangement is spaced apart along a first direction, and a protrusion is provided at one end of the protective shell in the first direction. The setting of the protrusion can play the role of the above-mentioned identification structure, and the structure is simple, easy to design and process, and the setting of the protrusion can increase the local mechanical strength of the protective shell, while increasing the thickness of the corresponding area, which can facilitate the setting of buckles, grooves and other structures on the protective shell. The above-mentioned buckles, grooves and other structures can be used as auxiliary assembly structures of external connection terminals and low-voltage terminals to improve the stability of the connection structure between the external connection terminals and the low-voltage terminals after assembly.

[0015] In some embodiments, the protrusion is provided on one of the end walls of the protective housing in the first direction. The arrangement of the protrusion in this embodiment facilitates, firstly, an operator to quickly identify the arrangement direction of the low-voltage terminals based on the position of the protrusion, thereby improving assembly efficiency to a certain extent; secondly, it increases the mechanical strength of the corresponding end wall; and thirdly, it facilitates the provision of structures such as snaps and grooves on the end wall of the protective housing.

[0016] In some embodiments, the protrusion is integrally formed with the protective shell. By adopting the solution provided by this embodiment, the connection between the protrusion and the protective shell can be stable and easy to process.

[0017] In some embodiments, the low-voltage terminals are provided in plurality and are spaced apart according to a preset arrangement, wherein the preset arrangement is spaced apart along a first direction, and the structures of the protective shell at both ends of the first direction are different. In this way, the arrangement direction of the low-voltage terminals can be identified by observing the structures of the protective shell at both ends of the first direction, which can improve the accuracy of the assembly direction when assembling the connection terminals of the external low-voltage device with the low-voltage terminals to a certain extent, reduce the risk of wrong connection to a certain extent, improve the safety of use, and reduce the rework caused by wrong connection to a certain extent, which can improve the assembly efficiency to a certain extent. At the same time, the solution provided by this embodiment can make the structure on the protective shell more concise and convenient for design and processing compared to the above-mentioned identification structure.

[0018] In some embodiments, the thickness of one end wall of the protective housing in the first direction is greater than the thickness of the other end wall opposite thereto. This embodiment allows installers to identify the arrangement direction of the low-voltage terminals simply by observing the thickness of the two end walls. Furthermore, the protective housing has a simple structure, making it easier to design and manufacture.

[0019] In some embodiments, the protective shell is provided with a guide structure for guiding the external connection terminal into the protective shell for electrical connection with the low-voltage terminal. The solution provided by this embodiment facilitates the assembly of the external connection terminal and can, to a certain extent, improve the assembly efficiency when connecting the external connection terminal to the low-voltage terminal.

[0020] In some embodiments, the guide structure includes a guide surface formed at the opening of the protective shell. The guide structure adopts the structure provided by this embodiment, which is simple in structure and easy to design and process.

[0021] In some embodiments, the area of ​​the opening enclosed by the guide surface gradually decreases from the outside to the inside along the depth direction of the protective shell, which makes the structure of the guide surface simple and easy to design and process.

[0022] In some embodiments, both the target component and the protective shell are insulating components; and / or both are injection-molded components. Having both the target component and the protective shell as insulating components can improve the safety of the high-voltage power distribution device to a certain extent. Injection molding of the target component and the protective shell is easy to manufacture and inexpensive.

[0023] In some embodiments, the protective shell and the target part are integrally formed, which can make the protective shell and the target part structurally stable and facilitate processing.

[0024] In some embodiments, at least a portion of the second end of the low-voltage terminal is located within the mounting cavity and is in electrical contact with the output terminal of the low-voltage circuit. By adopting the solution provided by this embodiment, the conductive member between the low-voltage terminal and the low-voltage circuit can be removed, saving space within the housing.

[0025] In some embodiments, the second end of the low-voltage terminal is located in the side wall of the target component, and the second end of the low-voltage terminal is provided with an electrical contact portion extending into the mounting cavity, and the electrical contact portion is electrically connected to the output terminal of the low-voltage circuit. Using the solution provided by this embodiment, the electrical contact portion can be made smaller in size and does not occupy excessive space within the housing.

[0026] In a second aspect, embodiments of the present application provide a battery comprising the high-voltage power distribution device described in any of the above-mentioned solutions. The battery provided in embodiments of the present application, comprising the high-voltage power distribution device described in any of the above-mentioned solutions, can, to a certain extent, reduce the number of components in the high-voltage power distribution device and reduce the footprint of the high-voltage power distribution device, thereby facilitating the miniaturization of the battery design.

[0027] Thirdly, embodiments of the present application provide an electrical device comprising the battery described in any of the above solutions. The electrical device provided in embodiments of the present application, comprising the battery described in any of the above solutions, can, to a certain extent, reduce the number of components in a high-voltage power distribution device and the footprint of the high-voltage power distribution device and the battery, thereby facilitating the miniaturization of the electrical device.

[0028] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] FIG1 is a schematic structural diagram of a vehicle according to some embodiments of the present application;

[0031] FIG2 is a schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0032] FIG3 is a schematic diagram of a partial cross-sectional structure of a high-voltage power distribution device according to some embodiments of the present application;

[0033] FIG4 is a schematic diagram of a partial cross-sectional structure of a high-voltage power distribution device according to some other embodiments of the present application;

[0034] FIG5 is a schematic diagram of a partial structure of a cover of a high-voltage power distribution device according to other embodiments of the present application;

[0035] FIG6 is a schematic diagram of a partial structure of a cover of a high-voltage power distribution device according to other embodiments of the present application;

[0036] FIG7 is a schematic side view of the cover of a high-voltage power distribution device according to other embodiments of the present application;

[0037] FIG8 is a schematic cross-sectional structural diagram of the cover of the high-voltage power distribution device shown in FIG7 along the AA direction.

[0038] The figure numbers in the specific implementation manner are as follows: 1000, vehicle; 100, battery; 200, controller; 300, motor; 400, high-voltage distribution device; 10, housing; 11, first part; 12, second part; 20, battery cell; 40, outer shell; 41, cover; 42, low-voltage terminal; 43, protective shell; 44, guide structure; 45, groove; 46, protrusion; 47, electrical contact part; X, first direction; Y, depth direction. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] In the description of the embodiments of this application, the technical terms "first" and "second" 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 clearly and specifically defined.

[0042] 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.

[0043] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, "and / or B" can represent three situations: the existence of "A" alone, the existence of "B" and "B" at the same time, and the existence of "B" alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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 and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," 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.

[0047] Power batteries are now widely used in automotive systems and energy storage systems due to their high capacity, compact size, light weight, low self-discharge coefficient, pollution-free operation, and long life. Currently, battery systems require an additional high-voltage distribution box to manage and monitor power distribution within the battery box. This high-voltage distribution box, as used in related technologies, requires a large number of components.

[0048] To address the aforementioned issues, embodiments of the present application provide a high-voltage power distribution device. This device integrates the low-voltage terminals of a low-voltage connector, originally located outside the high-voltage box, into the housing or cover of the high-voltage box. Compared to related art designs where low-voltage connectors are provided separately, this device can eliminate the need for the housing of the low-voltage connector. This reduces the number of components in the high-voltage power distribution device, reduces its footprint, simplifies its assembly process, and reduces the overall material usage and cost of the device.

[0049] The high-voltage power distribution device disclosed in the embodiments of the present application can be applied to batteries, as well as electrical devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, battery cars, electric cars, ships, spacecraft, and the like. Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like, and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, and the like.

[0050] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0051] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0052] In some embodiments of the present application, the battery 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.

[0053] Please refer to Figure 2, which is an exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a storage space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 can include a first portion 11 and a second portion 12, which overlap each other and together define a storage space for the battery cell 20. The second portion 12 can be a hollow structure with one end open. The first portion 11 can be a plate-like structure, with the first portion 11 overlapping the open side of the second portion 12, so that the first portion 11 and the second portion 12 together define a storage space. Alternatively, the first portion 11 and the second portion 12 can each be a hollow structure with one end open, with the open side of the first portion 11 overlapping the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc. In some cases, the battery cells can also be directly installed in the vehicle without a box or shell, that is, there is no need to form a battery pack, and the structure of the vehicle body itself serves as the fixing structure of the battery cells.

[0054] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell 20 may be housed within the housing 10. Alternatively, the battery 100 may be constructed by first connecting multiple battery cells 20 in series, in parallel, or in a hybrid connection to form a battery module, which is then connected in series, in parallel, or in a hybrid connection to form a complete battery module, and then housed within the housing 10. The battery 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0055] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0056] In order to improve the intelligence level of the battery 100, in addition to the above structure, many batteries 100 also include a high-voltage distribution device. The high-voltage distribution device is generally arranged outside the box, and in some cases it can also be arranged inside the box. Generally, a battery equipped with a high-voltage distribution device generally includes multiple battery boxes, and the battery box includes the above-mentioned box and battery cells. The high-voltage distribution device can couple the output power of multiple battery boxes and distribute the output power of multiple battery boxes to systems that require high-voltage power supply, such as motor controllers, electric compressors, and PTC heaters. The high-voltage distribution device generally has current and voltage acquisition functions, can safely manage the battery box, and realize functions such as overvoltage protection, overcurrent protection, and over-temperature protection. It also has the function of real-time monitoring of high-voltage connection status and high-voltage insulation status.

[0057] High-voltage power distribution devices typically include a high-voltage box and a low-voltage connector. The high-voltage box typically includes a housing, current sensors, a high-voltage sampling module, and a battery management unit (BMU). The current sensors, high-voltage sampling module, and BMU are typically located within the housing. The current sensors collect current parameters from each battery pack, the high-voltage sampling module collects high-voltage bus voltage and monitors the insulation status of the high-voltage bus, and the BMU aggregates and analyzes information from the entire electric vehicle's battery system, monitors and manages it, and interacts with the outside world.

[0058] As shown in FIG3 , an embodiment of the present application provides a high-voltage power distribution device 400 . The high-voltage power distribution device 400 includes a housing 40 , a cover 41 , and low-voltage terminals 42 .

[0059] The housing 40 has an opening. A cover 41 seals the opening and, together with the housing 40, forms a mounting cavity. A low-voltage terminal 42 is integrated into the target component, which can be the housing 40 or the cover 41. The first end of the low-voltage terminal 42 is exposed outside the mounting cavity, and the second end of the low-voltage terminal 42 is electrically connected to the low-voltage circuit within the housing 40.

[0060] As mentioned above, the high-voltage distribution device 400 is generally provided with some electronic components, such as current sensors, high-voltage sampling modules and battery management units. The housing 40 is generally a hollow structure with an opening on one side or one end, which is used to provide a storage space for the electronic components in the high-voltage distribution device 400. The cover 41 is generally a plate-shaped structure, which covers the opening of the housing 40. It is also possible that both the housing 40 and the cover 41 are hollow structures with an opening on one side, and the open side of the cover 41 covers the open side of the housing 40, and the two together enclose the above-mentioned storage space. The installation cavity is the above-mentioned storage space, which can be a variety of shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0061] In addition to the aforementioned electronic components, the high-voltage power distribution device 400 generally also contains some low-voltage circuits (such as current detection circuits and temperature detection circuits). These low-voltage circuits need to be connected to other external low-voltage devices (such as control devices) via low-voltage connectors. The low-voltage terminals 42 are the connection terminals that connect the low-voltage circuits within the high-voltage power distribution device 400 to other external low-voltage devices. The low-voltage terminals 42 can be electrically connected to the low-voltage circuits through welding, connector connection, and other methods.

[0062] The high-voltage distribution device 400 provided in the embodiment of the present application integrates the low-voltage terminal 42 of the low-voltage connector originally located outside the high-voltage box into the outer shell 40 or cover 41 of the high-voltage box. Compared with the related art in which the low-voltage connector is set separately, the shell part of the low-voltage connector can be omitted, which to a certain extent reduces the number of components in the high-voltage distribution device 400, reduces the floor space, simplifies the assembly process of the high-voltage distribution device 400, and at the same time reduces the overall material usage of the high-voltage distribution device 400, thereby reducing costs.

[0063] As shown in FIG. 4 , in some embodiments, at least one sidewall of the target component is provided with a groove 45 , and the first end of the low-voltage terminal 42 is located in the groove 45 .

[0064] The groove 45 can be directly opened on the side wall of the target part, such as by cutting, integral molding, etc.; an additional groove body can also be installed on the side wall of the target part by bonding, welding, etc.

[0065] The target part is generally an insulating part. By adopting the solution provided in this embodiment, the part of the low-voltage terminal 42 exposed from the target part can be located in the groove 45, which can reduce the risk of foreign objects hooking or colliding with the low-voltage terminal 42 to a certain extent, and can also reduce the risk of rainwater falling on the low-voltage terminal 42, thereby improving the safety of the high-voltage distribution device 400 to a certain extent.

[0066] As shown in FIG. 5 , in some embodiments, at least one side wall of the target component is provided with a protective shell 43 with an opening facing outward, and the first end of the low-voltage terminal 42 is located in the protective shell 43 .

[0067] The protective shell 43 is a hollow structure with one side open toward the outside, and is generally an insulating member. It may also be partially an insulating structure and partially a non-insulating structure, depending on the specific needs of use.

[0068] By adopting the solution provided in this embodiment, the part of the low-voltage terminal 42 exposed to the target part can be located inside the protective shell 43, which can reduce the risk of foreign objects hooking or colliding with the low-voltage terminal 42 to a certain extent, and can also reduce the risk of rainwater falling on the low-voltage terminal 42, thereby improving the safety of the high-voltage distribution device 400 to a certain extent.

[0069] In some embodiments, the protective shell 43 is embedded on the target part.

[0070] Embedded means that at least part of the protective shell 43 is covered by the target part. The protective shell 43 and the target part can be connected in a detachable manner or in a non-detachable manner. When the protective shell 43 and the target part are connected in a detachable manner, a groove 45 can be opened on the target part, and then the protective shell 43 is inserted into the groove 45. When the protective shell 43 and the target part are connected in a non-detachable manner, the target part can be directly cast outside the protective shell 43, or a groove 45 can be opened on the target part, and then the protective shell 43 is inserted into the groove 45, and then the relative positions of the protective shell 43 and the target part are fixed by welding or the like.

[0071] By adopting the solution provided in this embodiment, the connection stability between the protective shell 43 and the target part can be improved to a certain extent, and the space occupied by the assembly of the protective shell 43 and the target part can be reduced.

[0072] In some embodiments, at least a portion of the protective shell 43 protrudes from a sidewall of the target part.

[0073] At least part of the protective shell 43 protrudes from the side wall of the target part. The opening end of the protective shell 43 may extend beyond the side wall of the target part, that is, the opening of the protective shell 43 is located outside the side wall of the target part. It may also be that part of the protective shell 43 in other directions extends beyond the side wall of the target part, such as the side wall of the protective shell 43 in a direction perpendicular to the extension direction of the low-voltage terminal 42 extends beyond the side wall of the target part.

[0074] In this way, the size of the protective shell 43 is not limited by the size of the target component, which facilitates design.

[0075] In some embodiments, a plurality of low-voltage terminals 42 are provided, and are spaced apart according to a preset arrangement. The protective shell 43 is provided with an identification structure for identifying the preset arrangement.

[0076] The preset arrangement can be arranged at intervals along a straight line, at intervals along a circle, or in other arrangement modes.

[0077] Because different low-voltage terminals 42 generally have different functions, terminals with the same function must be connected to the corresponding terminals when connecting the low-voltage terminals 42 to the external low-voltage device. If the connection is incorrect, the corresponding electronic components in the high-voltage power distribution device 400 and / or the external low-voltage device may be damaged. The solution provided by this embodiment can improve the accuracy of the assembly direction when assembling the connection terminals of the external low-voltage device with the low-voltage terminals 42 to a certain extent, reduce the risk of incorrect connection, improve user safety, reduce rework caused by incorrect connection, and improve assembly efficiency to a certain extent.

[0078] As shown in FIG6 , in some embodiments, a plurality of low-voltage terminals 42 are provided and spaced apart in a predetermined arrangement, which is spaced apart along the first direction X. A protrusion 46 is provided at one end of the protective shell 43 in the first direction X.

[0079] The first direction X may be the length direction, width direction or other directions of the target part, which may be determined according to usage requirements.

[0080] The protrusion 46 can be a bump, a dot, or other structures. The protrusion 46 can be provided on the end wall or side wall of the corresponding end. The protrusion 46 can be integrally formed with the protective shell 43, that is, a part of the protective shell 43, or it can be provided independently of the protective shell 43 and installed on the protective shell 43 by plugging, bonding, etc.

[0081] The protrusion 46 serves as the aforementioned identification structure, and its structure is simple, making it easy to design and manufacture. Furthermore, the protrusion 46 increases the mechanical strength of the protective shell 43 locally, while also increasing the thickness of the corresponding area. This facilitates the provision of structures such as buckles and grooves 45 on the protective shell 43. These buckles and grooves 45 can serve as auxiliary assembly structures for the external connection terminal and the low-voltage terminal 42, thereby improving the stability of the connection structure between the external connection terminal and the low-voltage terminal 42 after assembly.

[0082] As shown in FIG. 6 , in some embodiments, the protrusion 46 is disposed on one of the end walls of the protective shell 43 in the first direction X.

[0083] The protrusion 46 adopts the setting method of this embodiment. On the one hand, it is convenient for the operator to quickly identify the arrangement direction of the low-voltage terminal 42 according to the position of the protrusion 46, thereby improving the assembly efficiency to a certain extent; on the second hand, it can increase the mechanical strength of the corresponding end wall; on the third hand, it can also facilitate the setting of structures such as snaps and grooves 45 on the end wall of the protective shell 43.

[0084] In some embodiments, the protrusion 46 is integrally formed with the protective shell 43 .

[0085] Integral molding means that the protrusion 46 and the protective shell 43 are a whole, and can be simultaneously manufactured through an integral molding process, or a whole can be manufactured through an integral molding process first, and then the protrusion 46 is processed on the whole by cutting or other methods.

[0086] By adopting the solution provided in this embodiment, the connection between the protrusion 46 and the protective shell 43 can be stably achieved, and processing is facilitated.

[0087] As shown in Figures 6 and 7, in some embodiments, there are multiple low-voltage terminals 42, and they are arranged at intervals according to a preset arrangement. The preset arrangement is arranged at intervals along the first direction X, and the structures of the protective shell 43 at both ends of the first direction X are different.

[0088] In this way, the arrangement direction of the low-voltage terminal 42 can be identified by observing the structure of the protective shell 43 at both ends in the first direction X, which can improve the accuracy of the assembly direction when the connection terminal of the external low-voltage device is assembled with the low-voltage terminal 42 to a certain extent, reduce the risk of wrong connection to a certain extent, improve the safety of use, and reduce the rework caused by wrong connection to a certain extent, which can improve the assembly efficiency to a certain extent.

[0089] At the same time, the solution provided by this embodiment can make the structure on the protective shell 43 simpler and easier to design and process compared to the above-mentioned setting of the identification structure.

[0090] In some embodiments, the thickness of one end wall of the protective shell 43 in the first direction X is greater than the thickness of the other end wall opposite thereto.

[0091] Thickness refers to the dimension of the corresponding end wall in the first direction X.

[0092] By adopting the solution provided in this embodiment, the installer can identify the arrangement direction of the low-voltage terminals 42 simply by observing the thickness of the two end walls, and the structure of the protective shell 43 is simple, which is convenient for design and processing.

[0093] As shown in FIG. 6 and FIG. 7 , in some embodiments, a guide structure 44 is provided on the protective shell 43 , and the guide structure 44 is used to guide the external connection terminal to be inserted into the protective shell 43 to be electrically connected to the low-voltage terminal 42 .

[0094] The guide structure 44 is used to guide the external connection terminals into the protective shell 43. It can include guide surfaces, guide rails, etc., and the specific structure can be determined according to the actual use. The guide structure 44 can be directly machined on the protective shell 43, or it can be a separate structural component installed on the protective shell 43 by bonding, plugging, etc.

[0095] The solution provided in this embodiment facilitates the assembly of the external connection terminal and can improve the assembly efficiency when the external connection terminal is connected to the low-voltage terminal 42 to a certain extent.

[0096] In some embodiments, the guide structure 44 includes a guide surface formed at an opening of the protective shell 43 .

[0097] The guide surface may include one surface or multiple surfaces, and may be a flat surface or a curved surface, as long as it can guide the external connection terminal to be inserted into the protective shell 43 .

[0098] The guide structure 44 may include only the above-mentioned guide surface, or may include other structures in addition to the above-mentioned guide surface, such as guide rails, ridges, etc., which may be determined according to the specific needs of use.

[0099] The guide structure 44 adopts the structure provided in this embodiment, which has a simple structure and is easy to design and process.

[0100] In some embodiments, the area of ​​the opening surrounded by the guide surface gradually decreases from the outside to the inside along the depth direction of the protective shell 43.

[0101] In this embodiment, the guide surface can be a conical surface, or a quasi-conical surface, which makes the structure of the guide surface simple and facilitates design and processing.

[0102] In some embodiments, the target member and the protective shell 43 are both insulating members.

[0103] The insulating member may be a member made of a non-conductive material, or may have a conductive material disposed therein, with the portion in contact with the external space being made of a non-conductive material.

[0104] By adopting the solution provided in this embodiment, the safety of the high-voltage power distribution device 400 can be improved to a certain extent.

[0105] In some embodiments, the target part and the protective shell 43 are both injection-molded parts.

[0106] Injection molding is a method for producing industrial products. The target part and the protective shell 43 are both injection molded parts, which means that the target part and the protective shell 43 can be made by injection molding. Specifically, they can be made by injection molding using plastic materials, or by injection molding using rubber materials, or by injection molding using plastic materials. Plastic materials are mainly divided into thermoplastic and thermosetting plastics according to the molecular structure of synthetic resins. Thermoplastic plastics refer to plastics that remain plastic after repeated heating, mainly including common raw materials such as PE (polyethylene, polyethylene), PP (Polypropylene, polypropylene). Thermosetting plastics mainly refer to plastics made from synthetic resins that are hardened by heat, such as some phenolic plastics and amino plastics.

[0107] The target part and the protective shell 43 are injection molded parts, which are easy to prepare and inexpensive.

[0108] In some embodiments, the protective shell 43 is integrally formed with the target part.

[0109] This can make the protective shell 43 and the target part structure stable and facilitate processing.

[0110] As shown in FIG. 8 , in some embodiments, at least a portion of the second end of the low-voltage terminal 42 is located within the mounting cavity and is in electrical contact with an output terminal of the low-voltage circuit.

[0111] The electrical contact can be achieved by welding, gold finger connection, etc.

[0112] By adopting the solution provided in this embodiment, the conductive member between the low-voltage terminal 42 and the low-voltage circuit can be removed, thereby saving space in the housing 40 .

[0113] As shown in Figure 8, in some embodiments, the second end of the low-voltage terminal 42 is located in the side wall of the target part, and the second end of the low-voltage terminal 42 is provided with an electrical contact portion 47 extending into the installation cavity, and the electrical contact portion 47 is electrically contacted with the output terminal of the low-voltage circuit.

[0114] The electrical contact portion 47 can be an electrical connector, a gold finger, a contact, or other component that can be electrically connected to the output terminal of the low-voltage circuit through contact. It can be integrally formed on the low-voltage terminal 42, or it can be a component independent of the low-voltage terminal 42 and connected to the low-voltage terminal 42 by welding, plugging, etc.

[0115] By adopting the solution provided in this embodiment, the electrical contact portion 47 can be made smaller in size and does not occupy too much space in the housing 40 .

[0116] According to some embodiments of the present application, the present application also provides a battery, comprising a high-voltage power distribution device of any of the above schemes.

[0117] The battery provided in the embodiments of the present application, including the high-voltage distribution device of any of the above schemes, can reduce the number of components in the high-voltage distribution device to a certain extent, reduce the footprint of the high-voltage distribution device, and thus facilitate the miniaturization design of the battery.

[0118] According to some embodiments of the present application, the present application further provides an electrical device, comprising a battery according to any of the above solutions, and the battery is used to provide electrical energy to the electrical device.

[0119] The power-consuming device may be any of the aforementioned devices or systems using batteries.

[0120] The electrical device provided in the embodiments of the present application, including the battery of any of the above schemes, can reduce the number of components in the high-voltage distribution device to a certain extent, reduce the footprint of the high-voltage distribution device and the battery, thereby facilitating the miniaturization design of the electrical device.

[0121] As shown in Figures 1 to 8, an embodiment of the present application provides a high-voltage power distribution device 400. The high-voltage power distribution device 400 includes a housing 40, a cover 41, and a low-voltage terminal 42. The housing 40 has an opening. The cover 41 covers the opening and forms a mounting cavity with the housing 40. The low-voltage terminal 42 is integrated into a target component. The target component is the housing 40 or the cover 41. The first end of the low-voltage terminal 42 is exposed outside the mounting cavity, and the second end of the low-voltage terminal 42 is electrically connected to the low-voltage circuit in the housing 40.

[0122] At least one sidewall of the target component is provided with a protective shell 43 with an outward opening. The first end of the low-voltage terminal 42 is located within the protective shell 43. The protective shell 43 is embedded in the target component. At least a portion of the protective shell 43 protrudes from the sidewall of the target component. Both the target component and the protective shell 43 are made of plastic. The protective shell 43 is integrally molded with the target component.

[0123] There are multiple low-voltage terminals 42 , which are spaced apart according to a preset arrangement. The protective shell 43 is provided with an identification structure for identifying the preset arrangement.

[0124] Multiple low-voltage terminals 42 are provided and spaced apart in a predetermined arrangement, which is spaced apart along the first direction X. A protrusion 46 is provided at one end of the protective shell 43 in the first direction X. The protrusion 46 is provided on one end wall of the protective shell 43 in the first direction X. The protrusion 46 is integrally formed with the protective shell 43. One end wall of the protective shell 43 in the first direction X is thicker than the other end wall.

[0125] Protective shell 43 is provided with a guide structure 44, which is used to guide the external connection terminals into protective shell 43 for electrical connection with low-voltage terminals 42. Guide structure 44 includes a guide surface formed at the opening of protective shell 43. The area of ​​the opening enclosed by the guide surface gradually decreases from the outside to the inside along the depth direction of protective shell 43. The guide surface can be a conical surface or a quasi-conical surface.

[0126] At least a portion of the second end of the low-voltage terminal 42 is located within the mounting cavity and is in electrical contact with the output terminal of the low-voltage circuit. The second end of the low-voltage terminal 42 is located in the side wall of the target component and is provided with an electrical contact portion 47 extending into the mounting cavity. The electrical contact portion 47 is in electrical contact with the output terminal of the low-voltage circuit.

[0127] The high-voltage power distribution device 400 provided in the embodiment of the present application effectively simplifies the assembly process of the high-voltage power distribution device 400 by integrally injection-molding the low-voltage connector and the housing of the high-voltage box, while reducing the overall plastic material usage and lowering costs.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A high voltage power distribution device, characterized in that: include: a housing having an opening; A cover body, covering the opening and forming a mounting cavity with the shell; as well as A low-voltage terminal is integrated on a target part, the target part is the housing or the cover, a first end of the low-voltage terminal is exposed outside the installation cavity, and a second end of the low-voltage terminal is electrically connected to a low-voltage circuit in the housing.

2. The high voltage power distribution device according to claim 1, characterized in that: At least one side wall of the target part is provided with a groove, and the first end of the low-voltage terminal is located in the groove.

3. The high voltage power distribution device according to claim 1, characterized in that: At least one side wall of the target part is provided with a protective shell with an opening facing outward, and the first end of the low-voltage terminal is located in the protective shell.

4. The high voltage power distribution device according to claim 3, characterized in that: The protective shell is embedded on the target part.

5. The high voltage power distribution device according to claim 3, characterized in that: At least a portion of the protective shell protrudes from a side wall of the target component.

6. The high voltage power distribution device according to any one of claims 1 to 5, characterized in that: The low-voltage terminals are provided in plurality and are arranged at intervals according to a preset arrangement. The protective shell is provided with an identification structure for identifying the preset arrangement.

7. The high voltage power distribution device according to any one of claims 3 to 5, characterized in that: There are a plurality of low-voltage terminals, and they are spaced apart in a preset arrangement. The preset arrangement is spaced apart along a first direction, and a protrusion is provided at one end of the protective shell in the first direction.

8. The high voltage power distribution device according to claim 7, characterized in that: The protruding portion is disposed on one of the end walls of the protective shell in the first direction.

9. The high voltage power distribution device according to claim 7, characterized in that: The protrusion is integrally formed with the protective shell.

10. The high voltage power distribution device according to any one of claims 3 to 5, characterized in that: There are a plurality of low-voltage terminals, and they are spaced apart in a preset arrangement. The preset arrangement is spaced apart along a first direction, and the structures of the protective shell at both ends of the first direction are different.

11. The high voltage power distribution device according to claim 10, characterized in that: The thickness of one end wall of the protective shell in the first direction is greater than the thickness of the other end wall opposite thereto.

12. The high voltage power distribution device according to any one of claims 3 to 5, characterized in that: The protective shell is provided with a guide structure, and the guide structure is used to guide the external connection terminal to be inserted into the protective shell so as to be electrically connected with the low-voltage terminal.

13. The high voltage power distribution device according to claim 12, characterized in that: The guide structure includes a guide surface formed at an opening of the protective shell.

14. The high voltage power distribution device according to claim 13, characterized in that: The area of ​​the opening surrounded by the guide surface gradually decreases from outside to inside along the depth direction of the protective shell.

15. The high voltage power distribution device according to any one of claims 3 to 5, characterized in that: The target part and the protective shell are both insulating parts; And / or, the target part and the protective shell are both injection molded parts.

16. The high voltage power distribution device according to any one of claims 3 to 5, characterized in that: The protective shell is integrally formed with the target component.

17. The high voltage power distribution device according to any one of claims 1 to 5, characterized in that: At least a portion of the second end of the low-voltage terminal is located in the mounting cavity and is in electrical contact with an output terminal of the low-voltage circuit.

18. The high voltage power distribution device according to any one of claims 1 to 5, characterized in that: The second end of the low voltage terminal is located in the side wall of the target component, and the second end of the low voltage terminal is provided with an electrical contact portion extending into the installation cavity, and the electrical contact portion is in electrical contact with the output terminal of the low voltage circuit.

19. A battery, characterized in that: Comprising the high-voltage power distribution device as described in any one of claims 1-18.

20. An electrical device, characterized in that: Comprising the battery of claim 19.

Images