High-voltage power distribution device, battery and power utilization device

Abstract

The utility model is suitable for the technical field of batteries, and provides a high-voltage power distribution device, a battery and a power utilization device. The high-voltage power distribution device comprises a shell, a cover body and a low-voltage terminal; the shell has an opening; the cover body covers the opening, and an installation cavity is defined by the cover body and the shell; the low-voltage terminal is integrated on the target piece, the target piece is a shell or a cover body, the first end of the low-voltage terminal is exposed out of the mounting cavity, and the second end of the low-voltage terminal is electrically connected with a low-voltage circuit in the shell; at least one side wall of the target piece is provided with a protective shell with an outward opening, and the first end of the low-voltage terminal is located in the protective shell. According to the high-voltage power distribution device, the battery and the power utilization device, the number of parts in the high-voltage power distribution device can be reduced to a certain extent, and the occupied area of the high-voltage power distribution device is reduced.

Description

Technical Field

[0001] 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

[0002] Due to the advantages of high capacity, small size, light weight, small self-discharge coefficient, no pollution, and long life, power batteries are now widely used in vehicle systems and energy storage systems. At present, the battery system needs to be equipped with an additional high-voltage distribution box, and the high-voltage distribution device is used to manage and monitor the power distribution of the battery box. In the related technology, the number of parts required for the high-voltage distribution device is relatively large. Utility Model Content

[0003] In view of the above problems, the present application provides 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.

[0004] In a first aspect, an embodiment of the present application provides a high-voltage power distribution device, comprising: a shell having an opening; a cover body, covering the opening and forming an installation cavity with the shell; and a low-voltage terminal, integrated on a target part, the target part being the shell 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 a low-voltage circuit in the shell.

[0005] The high-voltage power distribution device provided in the embodiment of the present application integrates the low-voltage terminals in the low-voltage connector originally located outside the high-voltage box into the outer casing or cover of the high-voltage box. Compared with the related art in which the low-voltage connectors are separately arranged, 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 consumption of the high-voltage distribution device and reduce costs.

[0006] In some embodiments, 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. The target part is generally an insulating part. By adopting the solution provided in this embodiment, the part of the low-voltage terminal exposed from the target part can be located in the groove, which can reduce the risk of hooking or collision between foreign objects and the low-voltage terminal to a certain extent, and can also reduce the risk of rainwater falling on the low-voltage terminal, thereby improving the safety of the high-voltage power distribution device to a certain extent.

[0007] In some embodiments, 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. By adopting the solution provided in this embodiment, the part of the low-voltage terminal exposed to the target part can be located in the protective shell, which can reduce the risk of hooking or collision between foreign objects and the low-voltage terminal to a certain extent, and can also reduce the risk of rainwater falling on the low-voltage terminal, thereby improving the safety of the high-voltage power distribution device to a certain extent.

[0008] 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.

[0009] In some embodiments, at least a portion of the protective shell protrudes from the side wall of the target part, so that the size of the protective shell is not limited by the size of the target part, which is convenient for design.

[0010] In some embodiments, the low-voltage terminal is provided in plurality and is arranged at intervals 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, when the low-voltage terminal is connected to an external low-voltage device, terminals with the same function need to be connected accordingly. If the connection is wrong, the corresponding electronic components in the high-voltage power 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 terminal of the external low-voltage device with the low-voltage terminal 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.

[0011] In some embodiments, the low-voltage terminal is provided in plurality and is arranged at intervals according to a preset arrangement, wherein the preset arrangement is arranged at intervals 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 for 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.

[0012] In some embodiments, the protrusion is provided on one of the end walls of the protective shell in the first direction. The protrusion is provided in the manner of this embodiment. Firstly, it is convenient for operators to quickly identify the arrangement direction of the low-voltage terminals according to the position of the protrusion, thereby improving the assembly efficiency to a certain extent; secondly, it can increase the mechanical strength of the corresponding end wall; thirdly, it can also facilitate the provision of buckles, grooves and other structures on the end wall of the protective shell.

[0013] In some embodiments, the protrusion is integrally formed with the protective shell. By adopting the solution provided in this embodiment, the connection between the protrusion and the protective shell can be stably achieved, which is convenient for processing.

[0014] In some embodiments, the low-voltage terminal is provided in plurality and is arranged at intervals according to a preset arrangement, the preset arrangement being arranged at intervals along a first direction, and the protective shell has different structures at both ends of the first direction. In this way, the arrangement direction of the low-voltage terminal can be identified by observing the structure of the protective shell at both ends of the first direction, which can improve the accuracy of the assembly direction when assembling the connection terminal of the external low-voltage device with the low-voltage terminal 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 in this embodiment can make the structure on the protective shell more concise and convenient for design and processing compared to the above-mentioned setting of the identification structure.

[0015] In some embodiments, 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. By adopting the solution provided by this embodiment, the installer can identify the arrangement direction of the low-voltage terminals by simply observing the thickness of the two end walls, and the structure of the protective shell is simple, which is convenient for design and processing.

[0016] In some embodiments, 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 to be electrically connected to the low-voltage terminal. The solution provided by this embodiment is adopted to facilitate 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 to a certain extent.

[0017] 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.

[0018] 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, so that the structure of the guide surface is simple and easy to design and process.

[0019] In some embodiments, 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. The target part and the protective shell are both insulating parts, which can improve the safety of the high-voltage power distribution device to a certain extent. The target part and the protective shell are injection molded parts, which are easy to prepare and inexpensive.

[0020] In some embodiments, the protective shell and the target part are integrally formed, so that the protective shell and the target part can be structurally stable and easy to process.

[0021] In some embodiments, at least part of the second end of the low voltage terminal is located in the installation 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 in the housing.

[0022] In some embodiments, the second end of the low-voltage terminal is located in the side wall of the target part, 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. By adopting the solution provided in this embodiment, the electrical contact portion 7 can be made smaller in size and does not occupy too much space in the housing.

[0023] In the second aspect, an embodiment of the present application provides a battery, including the high-voltage power distribution device provided by any of the above schemes. The battery provided by the embodiment of the present application, including the high-voltage power distribution device of any of the above schemes, can reduce the number of components in the high-voltage power distribution device to a certain extent, reduce the footprint of the high-voltage power distribution device, and thus facilitate the miniaturization design of the battery.

[0024] In the third aspect, the embodiment of the present application provides an electric device, including the battery provided by any of the above schemes. The electric device provided by the embodiment of the present application, including the battery of any of the above schemes, can reduce the number of components in the high-voltage power distribution device to a certain extent, reduce the footprint of the high-voltage power distribution device and the battery, thereby facilitating the miniaturization design of the electric device.

[0025] 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

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0027] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0028] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0029] Figure 3 A partial cross-sectional structural schematic diagram of a high-voltage power distribution device in some embodiments of the present application;

[0030] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a high-voltage power distribution device in some other embodiments of the present application;

[0031] Figure 5 It is a partial structural schematic diagram of a cover body of a high-voltage power distribution device according to some other embodiments of the present application;

[0032] Figure 6 It is a partial structural schematic diagram of a cover body of a high-voltage power distribution device according to some other embodiments of the present application;

[0033] Figure 7 It is a schematic side view of the structure of the cover of the high-voltage power distribution device of other embodiments of the present application;

[0034] Figure 8 for Figure 7 The cross-sectional structure diagram of the cover body of the high-voltage power distribution device shown is along the AA direction.

[0035] The reference numerals in the specific implementation manner are as follows:

[0036] 1000. Vehicles;

[0037] 100, battery; 200, controller; 300, motor; 400, high-voltage power distribution device;

[0038] 10. Box body; 11. First part; 12. Second part; 20. Battery cell; 40. Housing; 41. Cover; 42. Low voltage terminal; 43. Protective shell; 44. Guide structure; 45. Groove; 46. Protrusion; 47. Electrical contact part;

[0039] X, first direction; Y, depth direction. DETAILED DESCRIPTION

[0040] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0042] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0043] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0045] 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).

[0046] 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0047] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] Due to the advantages of high capacity, small size, light weight, small self-discharge coefficient, no pollution, and long life, power batteries are now widely used in vehicle systems and energy storage systems. At present, the battery system needs to be equipped with an additional high-voltage distribution box, and the high-voltage distribution device is used to manage and monitor the power distribution of the battery box. In the related technology, the number of parts required for the high-voltage distribution device is relatively large.

[0049] In order to improve the above problems, the embodiment of the present application provides a high-voltage power distribution device. The high-voltage power distribution device integrates the low-voltage terminals in the low-voltage connector originally located outside the high-voltage box into the shell or cover of the high-voltage box. Compared with the related art in which the low-voltage connector is separately provided, the shell part of the low-voltage connector can be omitted, which reduces the number of parts in the high-voltage power distribution device to a certain extent, reduces the floor space, simplifies the assembly process of the high-voltage power distribution device, and reduces the overall material consumption of the high-voltage power distribution device, thereby reducing costs.

[0050] The high-voltage power distribution device disclosed in the embodiment of the present application can be applied to batteries, and power-consuming devices using batteries as power sources or various energy storage systems using batteries as energy storage elements. The power-consuming devices may be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, and the like. Among them, electric toys may 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 may include airplanes, rockets, space shuttles, and spacecraft, and the like.

[0051] 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.

[0052] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may 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 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and 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.

[0053] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve 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.

[0054] Please refer to Figure 2 , Figure 2 An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box 10 and a battery cell 20, and the battery cell 20 is contained in the box 10. Among them, the box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell 20. The second part 12 may be a hollow structure with one end open, the first part 11 may be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 may be in a variety of shapes, such as a cylinder, a cuboid, 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 a fixing structure for the battery cells.

[0055] 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 mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0056] Each battery cell 20 may be a secondary battery or a primary battery, or 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.

[0057] 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 power distribution device. The high-voltage power distribution device is generally arranged outside the box, and in some cases it can also be arranged inside the box. In general, a battery equipped with a high-voltage power distribution device generally includes a plurality of battery boxes, and the battery box includes the above-mentioned box and battery cells. The high-voltage power 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 power distribution device generally has the function of current and voltage acquisition, 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 the high-voltage connection status and high-voltage insulation status.

[0058] The high-voltage power distribution device usually includes a high-voltage box and a low-voltage connector. The high-voltage box generally includes a housing, a current sensor, a high-voltage sampling module, and a battery management unit (BMU). Among them, the current sensor, the high-voltage sampling module, and the battery management unit are generally arranged in the housing. The current sensor can collect the current parameters of each battery box, the high-voltage sampling module can collect the high-voltage bus voltage, and monitor the insulation status of the high-voltage bus. The battery management unit can summarize and analyze the information of the battery system of the entire electric vehicle, monitor and manage it, and interact with the outside.

[0059] like Figure 3 As shown, the 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.

[0060] 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 on the target part. The target part 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.

[0061] As mentioned above, the high-voltage power distribution device 400 is generally provided with some electronic components, such as current sensors, high-voltage sampling modules and battery management units. The outer shell 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 power distribution device 400. The cover body 41 is generally a plate-like structure, which covers the opening of the outer shell 40. It is also possible that both the outer shell 40 and the cover body 41 are hollow structures with an opening on one side, and the open side of the cover body 41 covers the open side of the outer shell 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 cuboid, etc.

[0062] In addition to the above-mentioned electronic components, the high-voltage power distribution device 400 generally also contains some low-voltage circuits (such as current detection circuits, temperature detection circuits, etc.). These low-voltage circuits need to be connected to other external low-voltage devices (such as control devices) through low-voltage connectors. The above-mentioned low-voltage terminal 42 is a connection terminal that connects the low-voltage circuit in the high-voltage power distribution device 400 and other external low-voltage devices. The low-voltage terminal 42 can be electrically connected to the low-voltage circuit by welding, connector connection, etc.

[0063] The high-voltage power distribution device 400 provided in the embodiment of the present application integrates the low-voltage terminal 42 in the low-voltage connector originally located outside the high-voltage box into the outer shell 40 or the cover 41 of the high-voltage box. Compared with the related art in which the low-voltage connector is separately arranged, 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 400 to a certain extent, reduce the floor space, simplify the assembly process of the high-voltage power distribution device 400, and at the same time reduce the overall material consumption of the high-voltage power distribution device 400, thereby reducing costs.

[0064] like Figure 4 As shown, in some embodiments, at least one side wall 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 .

[0065] The groove 45 can be directly opened on the side wall of the target part, such as being made directly on the side wall of the target part 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.

[0066] 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 hooking or collision between foreign objects and 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.

[0067] like Figure 5 As shown, 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 .

[0068] The protective shell 43 is a hollow structure with one side open to 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 use requirements.

[0069] By adopting the solution provided in this embodiment, the part of the low-voltage terminal 42 exposed from the target part can be located inside the protective shell 43, which can reduce the risk of hooking or colliding between foreign objects and 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 use of the high-voltage distribution device 400 to a certain extent.

[0070] In some embodiments, the protective shell 43 is embedded on the target part.

[0071] 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 position of the protective shell 43 and the target part is fixed by welding or the like.

[0072] 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.

[0073] In some embodiments, at least a portion of the protective shell 43 protrudes from a side wall of the target part.

[0074] 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.

[0075] In this way, the size of the protective shell 43 is not limited by the size of the target component, which facilitates design.

[0076] In some embodiments, a plurality of low-voltage terminals 42 are provided, and are arranged at intervals according to a preset arrangement. An identification structure for identifying the preset arrangement is provided on the protective shell 43.

[0077] The preset arrangement mode may be arranged at intervals along a straight line, or arranged at intervals along a circle, or may be other arrangement modes.

[0078] Since different low-voltage terminals 42 generally have different functions, when the low-voltage terminal 42 is connected to an external low-voltage device, terminals with the same function need to be connected accordingly. If the connection is wrong, 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 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, reduce the rework caused by wrong connection to a certain extent, and improve the assembly efficiency to a certain extent.

[0079] like Figure 6 As shown, in some embodiments, a plurality of low-voltage terminals 42 are provided and are arranged at intervals according to a preset arrangement, and the preset arrangement is arranged at intervals along the first direction X. A protrusion 46 is provided at one end of the protective shell 43 in the first direction X.

[0080] The first direction X may be a length direction, a width direction or other directions of the target part, which may be determined according to usage requirements.

[0081] The protrusion 46 may be a bump, a convex point, or other structures. The protrusion 46 may be provided on the end wall or the side wall of the corresponding end. The protrusion 46 may be integrally formed on the protective shell 43, that is, a part of the protective shell 43, or may be provided independently of the protective shell 43 and installed on the protective shell 43 by plugging, bonding, or the like.

[0082] The setting of the protrusion 46 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 46 can increase the local mechanical strength of the protective shell 43, and at the same time make the thickness of the corresponding area larger, which can provide convenience for setting structures such as buckles and grooves 45 on the protective shell 43. The above-mentioned buckles, grooves 45 and other structures can be used for the auxiliary assembly structure of the external connection terminal and the low-voltage terminal 42 to improve the stability of the connection structure of the external connection terminal and the low-voltage terminal 42 after assembly.

[0083] like Figure 6 As shown, in some embodiments, the protrusion 46 is disposed on one of the end walls of the protective shell 43 in the first direction X.

[0084] 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.

[0085] In some embodiments, the protrusion 46 is integrally formed with the protective shell 43 .

[0086] 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 first manufactured as a whole through an integral molding process, and then the protrusion 46 is processed on the whole by cutting or the like.

[0087] By adopting the solution provided in this embodiment, the connection between the protrusion 46 and the protective shell 43 can be stably achieved, which is convenient for processing.

[0088] like Figure 6 and Figure 7 As shown, in some embodiments, a plurality of low-voltage terminals 42 are provided, and are spaced apart in a preset arrangement. The preset arrangement is spaced apart along the first direction X, and the structures of the protective shell 43 at both ends of the first direction X are different.

[0089] 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 of the first direction X, which can improve the accuracy of the assembly direction when assembling the connection terminals of the external low-voltage device and the low-voltage terminals 42 to a certain extent, reduce the risk of wrong connection to a certain extent, improve the safety of use, and reduce rework caused by wrong connection to a certain extent, which can improve the assembly efficiency to a certain extent.

[0090] At the same time, compared with the above-mentioned identification structure, the solution provided in this embodiment can make the structure on the protective shell 43 more concise and convenient for design and processing.

[0091] 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.

[0092] Thickness refers to the dimension of the corresponding end wall in the first direction X.

[0093] By adopting the solution provided in this embodiment, the installer can identify the arrangement direction of the low-voltage terminals 42 only 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.

[0094] like Figure 6 and Figure 7 As shown, 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 .

[0095] The guide structure 44 is a structure for guiding the external connection terminal to be inserted into the protective shell 43, and may include a guide surface, a guide rail, etc., which may be determined according to the use requirements. The guide structure 44 may be directly processed on the protective shell 43, or may be an independent structural member, which is installed on the protective shell 43 by bonding, plugging, etc.

[0096] The solution provided in this embodiment is adopted to facilitate 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.

[0097] In some embodiments, the guide structure 44 includes a guide surface formed at an opening of the protective shell 43 .

[0098] 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 .

[0099] The guide structure 44 may include only the above-mentioned guide surface, or may include other structures such as guide rails, ridges, etc. in addition to the above-mentioned guide surface, and the specific structure may be determined according to the use requirements.

[0100] The guide structure 44 adopts the structure provided in this embodiment, which has a simple structure and is easy to design and process.

[0101] In some embodiments, the area of ​​the opening surrounded by the guide surface gradually decreases from outside to inside along the depth direction of the protective shell 43 .

[0102] 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 easy to design and process.

[0103] In some embodiments, the target part and the protective shell 43 are both insulating parts.

[0104] The insulating member may be a member made of a non-conductive material, or may have a conductive material disposed inside, and the portion in contact with the external space is made of a non-conductive material.

[0105] By adopting the solution provided in this embodiment, the safety of using the high-voltage power distribution device 400 can be improved to a certain extent.

[0106] In some embodiments, both the target part and the protective shell 43 are injection molded parts.

[0107] 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 of plastic materials, or by injection molding of rubber materials, or by injection molding of 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 PE (polyethylene, polyethylene), PP (Polypropylene, polypropylene) and other common raw materials. Thermosetting plastics mainly refer to plastics made of synthetic resins that are hardened by heat, such as some phenolic plastics and amino plastics.

[0108] The target part and the protective shell 43 are injection molded parts, which are easy to prepare and inexpensive.

[0109] In some embodiments, the protective shell 43 is integrally formed with the target part.

[0110] This can make the protective shell 43 and the target part structure stable and facilitate processing.

[0111] like Figure 8 As shown, in some embodiments, at least a portion of the second end of the low voltage terminal 42 is located in the mounting cavity and is in electrical contact with the output terminal of the low voltage circuit.

[0112] The electrical contact can be achieved by welding, gold finger connection, etc.

[0113] 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 .

[0114] like Figure 8 As shown, 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 in electrical contact with the output terminal of the low voltage circuit.

[0115] 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 by 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.

[0116] By adopting the solution provided in this embodiment, the volume of the electrical contact portion 47 can be reduced, and the electrical contact portion 47 does not occupy too much space in the housing 40 .

[0117] 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.

[0118] 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.

[0119] According to some embodiments of the present application, the present application also provides an electrical device, comprising a battery according to any of the above schemes, and the battery is used to provide electrical energy to the electrical device.

[0120] The power-consuming device may be any of the aforementioned devices or systems using batteries.

[0121] The electrical device provided in the embodiments of the present application, including a battery according to 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.

[0122] like Figures 1 to 8 As shown, 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 is sealed on the opening and forms an installation cavity with the housing 40. The low-voltage terminal 42 is integrated on the target part. The target part is the housing 40 or the cover 41. The first end of the low-voltage terminal 42 is exposed outside the installation cavity, and the second end of the low-voltage terminal 42 is electrically connected to the low-voltage circuit in the housing 40.

[0123] At least one side wall of the target part 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. The protective shell 43 is embedded in the target part. At least part of the protective shell 43 protrudes from the side wall of the target part. The target part and the protective shell 43 are both plastic parts. The protective shell 43 is integrally formed with the target part.

[0124] 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.

[0125] A plurality of low-voltage terminals 42 are provided, and are arranged at intervals according to a preset arrangement, which is arranged at intervals 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. 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.

[0126] The protective shell 43 is provided with a guide structure 44, which 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. The guide structure 44 includes a guide surface formed at the opening of the protective shell 43. 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. The guide surface can be a conical surface, or a quasi-conical surface.

[0127] At least part of the second end of the low voltage terminal 42 is located in 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 part, and the second end of the low voltage terminal 42 is provided with an electrical contact portion 47 extending into the mounting cavity, and the electrical contact portion 47 is in electrical contact with the output terminal of the low voltage circuit.

[0128] 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 shell of the high-voltage box, while reducing the overall plastic material usage and lowering costs.

[0129] 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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 3 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 protruding portion 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.

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