A high-voltage junction box

By designing quick-connect connectors and reserving fuse installation positions in the high-voltage junction box, the problems of complex wiring and narrow applicability are solved, achieving rapid wiring and wide adaptability.

CN224459144UActive Publication Date: 2026-07-03ZHONGYI NEW ENERGY TECHNOLOGY (NANTONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGYI NEW ENERGY TECHNOLOGY (NANTONG) CO LTD
Filing Date
2025-02-11
Publication Date
2026-07-03

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Abstract

This utility model discloses a high-voltage junction box, including a housing, a mounting base, a busbar, a cover, a fuse, copper terminals, cables, a quick-connect connector socket, and a side cover. Threaded holes are provided on both the inner and outer walls of the housing. The cover is mounted on the top of the housing with screws. The quick-connect connector socket is mounted on the outside of the housing with screws, and the mounting base is mounted on the inside of the housing with screws. The busbar and mounting base each have several pre-drilled holes. The fuse and busbar are both fixed to the mounting base with screws. The fuse and quick-connect connector socket are electrically connected via cables. The copper terminals are electrically connected to both ends of the cables and are fixed to the mounting base with screws. This utility model allows for external wiring without opening the housing cover, making wiring convenient. It can be adapted to different vehicle architectures and has a wide range of applications.
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Description

Technical Field

[0001] This utility model belongs to the field of junction box technology, and in particular relates to a high-voltage junction box. Background Technology

[0002] With the vigorous development of the new energy electric vehicle industry, the functions of new energy electric vehicles are becoming increasingly rich, making the high-voltage junction box increasingly important in the overall vehicle architecture. Different automakers will also develop functions according to their own vehicle architecture, and the high-voltage junction boxes with different shapes and structures are non-standard customized parts, such as patent: CN201921075862.5.

[0003] Many junction boxes on the market currently require opening the cover to connect cables and securing them with screws. This wiring method is complex, inconvenient, and inefficient, and also has a narrow range of applications, making it unlikely to be used in other vehicle models. Therefore, the high-voltage junction box provided by this utility model is of great significance in addressing these issues. Utility Model Content

[0004] This utility model provides a high-voltage junction box with several input and output interfaces pre-installed on the box body. The input and output interfaces are internally interconnected. Quick-connect connector sockets are installed on the input and output interfaces. The quick-connect connector sockets are internally connected to the positive and negative terminals of the busbar via wire harnesses, thus enabling external wiring without opening the box cover to complete wiring inside the box. Given sufficient internal space, a fuse mounting position is provided on the mounting base, and a mounting hole is provided on the busbar to adapt to different vehicle architectures, thereby expanding the scope of application and solving the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a high-voltage junction box, comprising a housing, a mounting base, a busbar, a cover, a fuse, copper terminals, cables, a quick-connect connector socket, and a side cover. The inner and outer walls of the housing are provided with threaded holes. The cover is mounted on the top of the housing with screws. The quick-connect connector socket is mounted on the outside of the housing with screws. The mounting base is mounted inside the housing with screws. The busbar and mounting base are respectively provided with several busbar pre-drilled holes and mounting base pre-drilled holes. The fuse and busbar are both fixed to the mounting base with screws. The fuse and quick-connect connector socket are electrically connected via cables. The copper terminals are electrically connected to both ends of the cables and are fixed to the mounting base with screws.

[0007] Furthermore, both the lid and the body of the box are rectangular, with their lengths and widths being equal.

[0008] Furthermore, a sealing groove is formed on the surface of the top edge of the box body. The sealing groove is rectangular, and a sealing strip is provided inside the sealing groove. The sealing strip is rectangular, and its width is equal to the width of the sealing groove.

[0009] Furthermore, the enclosure has several input and output interfaces pre-installed, and the input and output interfaces are internally interconnected. The quick-connect connector socket is installed on the input and output interfaces.

[0010] The present invention has the following advantages over the prior art:

[0011] (1) When using a high voltage junction box of this utility model, several input interfaces and output interfaces are reserved on the box body. The input interfaces and output interfaces are interconnected internally. Quick-connect connector sockets are installed on the input interfaces and output interfaces. The quick-connect connector sockets are fixedly connected to the positive and negative terminals of the busbar internally through wire harnesses. Thus, external wiring work can be completed without opening the box cover to connect the wires inside the box body.

[0012] (2) When using a high-voltage junction box of this utility model, under the condition that there is enough space inside the junction box, a fuse installation position is reserved on the mounting base and a mounting hole is reserved on the busbar so as to adapt to different vehicle architectures, thereby expanding the scope of application.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a high-voltage junction box according to the present invention;

[0016] Figure 2 This is an exploded view of the components of a high-voltage junction box according to this utility model;

[0017] Figure 3 This is a schematic diagram of the internal assembly of the housing in this utility model;

[0018] Figure 4 This is a schematic diagram of the sealing strip in this utility model;

[0019] Figure 5 This is a circuit diagram of a high-voltage junction box according to the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Enclosure; 2. Mounting base; 3. Busbar; 4. Enclosure cover; 5. Fuse; 6. Copper terminal; 7. Cable; 8. Quick-connect connector socket; 9. Side cover; 10. Busbar pre-drilled hole; 11. Mounting base pre-drilled hole; 12. Sealing groove; 13. Sealing strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Please see Figure 1-5 As shown, this utility model discloses a high-voltage junction box, comprising a housing 1, a mounting base 2, a busbar 3, a cover 4, a fuse 5, copper terminals 6, cables 7, quick-connect connector sockets 8, and a side cover 9. Threaded holes are provided on both the inner and outer walls of the housing 1. The cover 4 is mounted on the top of the housing 1 with screws. The quick-connect connector socket 8 is mounted on the outside of the housing 1 with screws. The mounting base 2 is mounted on the inside of the housing 1 with screws. The mounting base 2 is an injection-molded part with a copper nut embedded during processing. Several... There are two reserved holes 10 for the busbar and 11 for the mounting base. The fuse 5 and the busbar 3 are both fixed to the mounting base 2 with screws. Under the condition that there is enough space inside the junction box, the mounting base 2 has a reserved installation position for the fuse 5 and a reserved mounting hole for the busbar 3 to adapt to different vehicle architectures, thereby improving the applicability. The fuse 5 and the quick-connect connector socket 8 are electrically connected through the cable 7. The copper terminals 6 are electrically connected to both ends of the cable 7 and are fixed to the mounting base 2 with screws.

[0025] Both the lid 4 and the body 1 are rectangular, with their length and width being equal. When the lid 4 is installed on top of the body 1, the lid 4 can overlap with the body 1 to completely cover the body 1, thereby achieving a sealing effect.

[0026] The top edge of the enclosure 1 has a rectangular sealing groove 12, and a sealing strip 13 is installed inside the sealing groove 12. The sealing strip 13 is also rectangular, and its width corresponds to the width of the sealing groove 12. The sealing strip 13 is made of elastic material such as rubber. When the enclosure cover 4 is installed on the top of the enclosure 1, the sealing strip 13 can fill the gap between the enclosure cover 4 and the enclosure 1 to further improve the sealing effect of the enclosure cover 4. This effectively prevents external dust and moisture from entering the enclosure 1 through the gap and adhering to the various electrical components.

[0027] The enclosure 1 has several pre-installed input and output interfaces. The input and output interfaces are internally interconnected. Quick-connect connector sockets 8 are installed on the input and output interfaces. The quick-connect connector sockets 8 are internally connected to the positive and negative terminals of the busbar 3 via wire harnesses. External wiring does not require opening the enclosure cover 4 to wire inside the enclosure 1. Wiring can be completed by directly plugging in the plug through the quick-connect connector sockets 8. When additional functions are required, quick-connect connector sockets 8 can be installed at the pre-installed input and output interfaces.

[0028] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0029] All standard parts used in the application documents can be purchased from the market. All components in this application documents can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0030] The working principle of this utility model is as follows:

[0031] In use, this utility model inputs external power from the battery input terminal through the quick-connect connector socket 8 on the input interface, then conducts it through the cable 7 to the busbar 3, and then distributes it through the busbar 3 to various fuses 5. The fuses 5 are connected to the output terminal 1 and the output terminal 2 through the cable 7, and then the power is distributed to different electrical devices from the quick-connect connector socket 8 on the output interface. The housing 1 has several input and output interfaces, which are internally interconnected. The quick-connect connector socket 8 is installed on the input and output interfaces, and the quick-connect... The positive and negative terminals of the connector socket 8 and busbar 3 are fixedly connected internally via a wiring harness. External wiring does not require opening the cover 4 to wire inside the housing 1. Wiring can be completed by directly plugging in the plug through the quick-connect connector socket 8. When additional functions are required, quick-connect connector sockets 8 can be installed at the reserved input and output interfaces. If there is enough space inside the junction box, a fuse 5 is reserved on the mounting base 2, and a mounting hole is reserved on the busbar 3 to adapt to different vehicle architectures, thereby expanding the scope of application.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-voltage distribution box, characterized in that The enclosure includes a housing (1), a mounting base (2), a busbar (3), a cover (4), a fuse (5), copper terminals (6), cables (7), quick-connect connector sockets (8), and side covers (9). Threaded holes are provided on both the inner and outer walls of the housing (1). The cover (4) is mounted on the top of the housing (1) with screws. The quick-connect connector socket (8) is mounted on the outside of the housing (1) with screws. The mounting base (2) is mounted on the inside of the housing (1) with screws. Inside, the busbar (3) and the mounting base (2) are respectively provided with a number of busbar reserved holes (10) and mounting base reserved holes (11). The fuse (5) and the busbar (3) are both fixed to the mounting base (2) by screws. The fuse (5) and the quick-connect connector socket (8) are electrically connected by a cable (7). The copper terminal (6) is electrically connected to both ends of the cable (7) and the copper terminal (6) is fixed to the mounting base (2) by screws.

2. A high-voltage junction box according to claim 1, characterized in that, Both the lid (4) and the body (1) are rectangular, with their lengths and widths being equal.

3. A high-voltage junction box according to claim 1, characterized in that, A sealing groove (12) is provided on the surface of the top edge of the box (1). The sealing groove (12) is rectangular, and a sealing strip (13) is provided inside the sealing groove (12). The sealing strip (13) is rectangular, and its width is equal to the width of the sealing groove (12).

4. A high-voltage junction box according to claim 1, characterized in that, The housing (1) has several input and output interfaces, which are internally interconnected. The quick-connect connector socket (8) is installed on the input and output interfaces.