A high-voltage transfer box mechanism of a four-core battery swap connector of an electric vehicle

Abstract

The application discloses a high-voltage switching box mechanism of a four-core battery replacement connector of an electric vehicle, wherein a high-voltage connector socket and a low-voltage connector socket are arranged on the high-voltage switching box mechanism, four high-voltage lines at the tail of a four-core battery replacement connector plug are connected with the high-voltage connector socket through copper terminals, and the low-voltage lines at the tail of the four-core battery replacement connector plug are connected with the low-voltage socket of the high-voltage switching box through a low-voltage plug, the high-voltage switching box mechanism is connected with the high-voltage connector socket and the low-voltage connector plug of the whole vehicle through the outgoing line of the four-core battery replacement connector, and the switching of the high-voltage switching box mechanism of the four-core battery replacement connector is relative to the switching of the line-to-line large-current connector, thereby improving stability, and effectively solving the problems of difficult production and assembly and difficult disassembly and repair in after-sales maintenance.

Description

Technical Field

[0001] This invention belongs to the field of electric vehicle battery swapping technology, and relates to a high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles. Background Technology

[0002] With the increasing popularity of electric vehicles, and given that charging efficiency and the number of charging stations cannot yet meet the charging demands, battery swapping will significantly improve vehicle service efficiency, attracting numerous operating companies to enter the market. As battery swapping has developed, connector manufacturers have invented various types of battery swapping connectors.

[0003] Electric vehicles supporting battery swapping connect the battery to the vehicle's high-voltage wiring harness via a battery swapping connector, enabling charging and discharging interaction and low-voltage communication between the power battery and the vehicle. Currently, there are various types of battery swapping connectors. Most current four-core battery swapping connectors have a stubbed wire design at the end, with the wire directly exiting from the connector to the vehicle's fast charging socket and high-voltage distribution unit. The heavy weight and long length of the fast charging and discharging cables make vehicle assembly and after-sales maintenance difficult. Furthermore, the stubbed wire design of most current four-core battery swapping connectors is not conducive to vehicle assembly and after-sales maintenance, and using high-current wire-to-wire connectors carries significant risks. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles. The adapter box connects the battery swapping connector and the high-voltage wiring harness of the vehicle, which can effectively solve the problems of inconvenient assembly and maintenance.

[0005] This invention is achieved through the following technical solution:

[0006] A high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles, comprising,

[0007] Single-core high-voltage connector, high-voltage adapter box body, high-voltage connector socket, low-voltage connector socket, and four-core power swap connector plug;

[0008] The high-voltage connector socket is located on one side of the high-voltage adapter box body; the low-voltage connector socket is installed on both sides of the high-voltage adapter box body; the single-core high-voltage connector is installed on the high-voltage adapter box body; the high-voltage wire at the tail of the four-core battery swapping connector plug is connected to the high-voltage connector socket through a copper terminal, and the low-voltage wire harness at the tail of the four-core battery swapping connector plug is connected to the low-voltage connector socket through a low-voltage plug; the high-voltage adapter box mechanism, the four-core battery swapping connector plug, and the vehicle high-voltage wiring harness constitute a transfer structure.

[0009] Preferably, the high-voltage connector socket includes a first two-core high-voltage socket and a second two-core high-voltage socket, which are mounted on the same side of the high-voltage adapter box body. The first two-core high-voltage socket and the second two-core high-voltage socket are respectively connected to the corresponding first two-core high-voltage plug and second two-core high-voltage plug of the vehicle's high-voltage wiring harness, thereby realizing the charging and discharging interaction between the battery and the vehicle.

[0010] Preferably, the low-voltage connector socket includes a first low-voltage socket and a second low-voltage socket; the first low-voltage socket is plugged into the first low-voltage plug of the battery swapping connector; the second low-voltage socket is plugged into the second low-voltage plug of the vehicle to realize low-voltage signal interaction between the vehicle and the battery; the first low-voltage socket and the second low-voltage socket are connected by a low-voltage wiring harness; the low-voltage wiring harness is installed inside the high-voltage adapter box body.

[0011] Preferably, a first fixed bracket and a second fixed bracket are respectively provided on both sides of the high-voltage adapter box body; the first fixed bracket and the second fixed bracket are provided with mounting holes, and the mounting holes and bolts are connected to fix the high-voltage adapter box body on the vehicle body.

[0012] Preferably, the four-pin battery swapping connector plug is connected to the four-pin battery swapping connector socket; the four-pin battery swapping connector socket is mounted on the battery.

[0013] Preferably, the terminal of the outgoing wire at the tail end of the four-core power swapping connector plug is fixed to the high-voltage connector socket with bolts after passing through a single-core high-voltage connector.

[0014] Preferably, the number of single-core high-voltage connectors is four, and the four single-core high-voltage connectors are located on the same mounting surface of the high-voltage junction box body.

[0015] Preferably, it also includes an upper cover plate and a side cover plate, which are fixedly connected to the high-voltage adapter box body by bolts.

[0016] Preferably, waterproof sealing rings are provided at the connection points between the high-voltage adapter box body and the top cover plate and the side cover plate.

[0017] Preferably, the high-voltage adapter box body has an irregular cavity structure with ten sides.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This invention provides a high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles. The high-voltage adapter box mechanism is connected via the output wires of the four-core battery swapping connector. The high-voltage adapter box mechanism is equipped with a high-voltage connector socket and a low-voltage connector socket, which are plugged into the high-voltage connector socket and low-voltage connector plug of the vehicle to achieve the swapping. The four-core battery swapping connector plug is connected to the four-core battery swapping connector socket. The four high-voltage wires at the tail of the four-core battery swapping connector plug are connected via copper terminals to two two-core high-voltage connector sockets in the high-voltage adapter box mechanism. These two two-core high-voltage connector sockets are connected to the corresponding high-voltage plugs in the vehicle's high-voltage wiring harness, thereby enabling the charging and discharging interaction between the battery and the vehicle. The low-voltage wire bundle at the end of the four-core battery swapping connector plug connects to the low-voltage socket of the high-voltage adapter box via the low-voltage plug. The low-voltage socket is connected to another low-voltage socket inside the high-voltage adapter box, and the other low-voltage socket is connected to the low-voltage plug of the vehicle, thereby realizing the low-voltage signal exchange between the battery and the vehicle. The high-voltage adapter box mechanism of the four-core battery swapping connector improves stability compared to the wire-to-wire high-current connector and can effectively solve the problems of difficult production assembly and difficult after-sales maintenance and disassembly. Attached Figure Description

[0020] Figure 1 This is a front view of the high-voltage adapter box mechanism of a four-core battery swapping connector for electric vehicles.

[0021] Figure 2 This is a side view of the high-voltage adapter box mechanism of a four-core battery swapping connector for electric vehicles.

[0022] Figure 3 This is a top view schematic diagram of a high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles.

[0023] Figure 4 This is a rear view schematic diagram of the high-voltage adapter box mechanism of a four-core battery swapping connector for electric vehicles.

[0024] Figure 5 This is a schematic diagram of the interior of the high-voltage adapter box mechanism of a four-core battery swapping connector for electric vehicles when the top cover is opened.

[0025] Figure 6 This is a schematic diagram of the interior of the high-voltage adapter box mechanism of a four-core battery swapping connector for electric vehicles when the side cover is opened.

[0026] Figure 7 This is a schematic diagram of the high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles.

[0027] Figure 8 This is a high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles, illustrating the high-voltage transfer principle.

[0028] In the diagram: 1. First two-core high-voltage socket; 2. Second two-core high-voltage socket; 3. First low-voltage socket; 4. Side cover; 5. First bolt; 6. Second low-voltage socket; 7. Top cover; 8. Second bolt; 9. First fixing bracket; 10. Single-core high-voltage connector; 11. Second fixing bracket; 12. Low-voltage wiring harness; 13. High-voltage adapter box body; 14. First two-core high-voltage plug; 15. Second two-core high-voltage plug; 16. First low-voltage plug; 17. Four-core battery swapping connector plug; 18. Battery pack; 19. Second low-voltage plug; 20. Four-core battery swapping connector socket. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments. These descriptions are for explanation purposes only and are not intended to limit the scope of the invention.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0031] A high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles, comprising,

[0032] Single-core high-voltage connector 10, high-voltage adapter box body 13, high-voltage connector socket, low-voltage connector socket and four-core power swap connector plug 17;

[0033] The high-voltage connector socket is located on one side of the high-voltage adapter box body 13; the low-voltage connector socket is installed on both sides of the high-voltage adapter box body 13; the single-core high-voltage connector 10 is installed on the high-voltage adapter box body 13; the high-voltage wire at the tail of the four-core battery swapping connector plug 17 is connected to the high-voltage connector socket via a copper terminal, and the low-voltage wire harness at the tail of the four-core battery swapping connector plug 17 is connected to the low-voltage connector socket via a low-voltage plug; the high-voltage adapter box mechanism, the four-core battery swapping connector plug 17, and the vehicle high-voltage wiring harness constitute a switching structure. One end of the high-voltage adapter box mechanism is connected to the battery swapping connector socket of the battery 18, and the other end of the high-voltage adapter box mechanism is plugged into the vehicle high-voltage wiring harness connector.

[0034] The high-voltage connector socket includes a first two-core high-voltage socket 1 and a second two-core high-voltage socket 2, which are mounted on the same side of the high-voltage adapter box body 13. The first two-core high-voltage socket 1 and the second two-core high-voltage socket 2 are respectively connected to the corresponding first two-core high-voltage plug 14 and second two-core high-voltage plug 15 of the vehicle's high-voltage wiring harness, thereby enabling charging and discharging interaction between the battery and the vehicle. The first two-core high-voltage socket 1 and the second two-core high-voltage socket 2 are used for mating with the vehicle's high-voltage connector, are mounted on the high-voltage adapter box body 13, and are both compatible with 50mm... 2 The wire diameter is known, and other specifications of two-core high-voltage connector sockets can be selected according to vehicle requirements.

[0035] The low-voltage connector socket includes a first low-voltage socket 3 and a second low-voltage socket 6, which are respectively installed on two opposing mounting surfaces of the high-voltage adapter box body 13. The first low-voltage socket 3 is plugged into the first low-voltage plug 16 of the battery swapping connector of the battery 18; the second low-voltage socket 6 is plugged into the second low-voltage plug 19 of the vehicle, realizing low-voltage signal interaction between the vehicle and the battery 18; the first low-voltage socket 3 and the second low-voltage socket 6 are connected by a low-voltage wiring harness 12; the low-voltage wiring harness 12 is installed inside the high-voltage adapter box body 13. Both the first low-voltage socket 3 and the second low-voltage socket 6 have 28 pins and are installed on the high-voltage adapter box body 13, with a 0.5mm tolerance. 2 The wire diameter is known, and other low-voltage socket specifications can be selected according to the vehicle's communication requirements. The aforementioned low-voltage wiring harness is used for interconnection between the low-voltage sockets and contains 23 0.5mm² wires. 2 The low-voltage wire is located inside the high-voltage junction box. It is known that other specifications of low-voltage wire harnesses can be selected according to the vehicle's communication requirements.

[0036] The high-voltage adapter box body 13 is provided with a first fixed bracket 9 and a second fixed bracket 11 on both sides, which are welded to the two opposing mounting surfaces of the high-voltage adapter box body 13 respectively. The first fixed bracket 9 and the second fixed bracket 11 are provided with two mounting holes. The mounting holes and M8 bolts are connected to fix the high-voltage adapter box body 13 to the vehicle body. It can be seen that the fixing method of the high-voltage adapter box mechanism can be designed according to the layout requirements.

[0037] The four-core battery swapping connector plug 17 is connected to the four-core battery swapping connector socket 20; the four-core battery swapping connector socket 20 is mounted on the battery 18.

[0038] The terminal of the four-core battery swapping connector plug 17 is connected to the high-voltage connector socket via a single-core high-voltage connector 10 and then fixed with bolts.

[0039] The number of single-core high-voltage connectors 10 is 4, and the 4 single-core high-voltage connectors 10 are located on the same mounting surface of the high-voltage adapter box body 13. They are installed on the high-voltage adapter box body 13 and are used to connect the copper terminals of the four-core power swapping connector. The copper terminals are inside the high-voltage adapter box body. The single-core high-voltage connectors 10 are used for sealing the high-voltage adapter box.

[0040] It also includes an upper cover plate 7 and a side cover plate 4, which are fixedly connected to the high-voltage adapter box body 13 by bolts. Waterproof sealing rings are provided at the connection points between the high-voltage adapter box body 13 and the upper cover plate 7 and side cover plate 4, respectively. The purpose of the upper cover plate 7 and side cover plate 4 is to facilitate internal wiring operations within the high-voltage adapter box mechanism, and their configuration can be modified according to the specific structure of the high-voltage adapter box body.

[0041] The high-voltage adapter box body 13 has an irregular cavity structure with ten faces. The high-voltage adapter box body 13 is fixed to the vehicle body. This invention is designed with an irregular structure, which can be designed into other structures according to layout requirements. Two faces are connected to the high-voltage adapter box body 13 by the upper cover plate 7 and the side cover plate 4 via second bolts 8 and first bolts 5. One face has six bolt holes for connection to the upper cover plate 7, and the other face has eight bolt holes for connection to the side cover plate 4. Both the second bolts 8 and the first bolts 5 are M8 bolts. The other four faces are mounting surfaces for the high-voltage connector socket, the low-voltage connector socket, and the single-core high-voltage connector 11.

[0042] The switching principle of the high-voltage adapter box mechanism is as follows: The four-core battery swapping connector plug 17 is connected to the four-core battery swapping connector socket 20. The four high-voltage wires at the tail of the four-core battery swapping connector plug 17 are connected to the two first two-core high-voltage sockets 1 and the second two-core high-voltage sockets 2 of the high-voltage adapter box mechanism through copper terminals. The two two-core high-voltage connector sockets are connected to the corresponding high-voltage plugs of the vehicle's high-voltage wiring harness, thereby realizing the charging and discharging interaction between the battery and the vehicle.

[0043] Furthermore, the low-voltage wire bundle at the tail of the four-core battery swapping connector plug 17 is connected to the two first low-voltage sockets 3 of the high-voltage adapter box through the low-voltage plug. The first low-voltage sockets 3 and the second low-voltage sockets 6 are connected inside the high-voltage adapter box. The other end of the second low-voltage socket 6 is connected to the low-voltage plug of the vehicle, thereby realizing the low-voltage signal interaction between the battery and the vehicle.

[0044] Furthermore, open the cover plate 7 of the high-voltage adapter box mechanism, and fix the terminal of the four-core power swapping connector plug 17 out of the tail end to the first two-core high-voltage socket 1 and the second two-core high-voltage socket 2 with bolts after passing through the single-core high-voltage connector 10, and then assemble the cover plate 7.

[0045] Furthermore, the high-voltage adapter box mechanism is fixed to the vehicle body, and the four-core battery swapping connector plug 17 is plugged into the four-core battery swapping connector socket of the battery pack 18. Furthermore, the first two-core high-voltage plug 14 and the second two-core high-voltage plug 15 are plugged into the first two-core high-voltage socket 1 and the second two-core high-voltage socket 2, respectively. Furthermore, the second low-voltage socket 6 is plugged into the vehicle's second low-voltage plug 19 and the first low-voltage socket 3 and the second low-voltage socket 6, respectively.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be in a centered component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may also be in a centered component. When a component is said to be "set to" another component, it can be directly set on the other component or it may also be in a centered component.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles, characterized in that, include, Single-core high-voltage connector (10), high-voltage adapter box body (13), high-voltage connector socket, low-voltage connector socket and four-core power swap connector plug (17). The high-voltage connector socket is located on one side of the high-voltage adapter box body (13); the low-voltage connector socket is installed on both sides of the high-voltage adapter box body (13); the single-core high-voltage connector (10) is installed on the high-voltage adapter box body (13); the high-voltage wire at the tail of the four-core power swap connector plug (17) is connected to the high-voltage connector socket through a copper terminal, and the low-voltage wire harness at the tail of the four-core power swap connector plug (17) is connected to the low-voltage connector socket through a low-voltage plug; the high-voltage adapter box mechanism, the four-core power swap connector plug (17) and the vehicle high-voltage wire harness form a transfer structure; The high-voltage connector socket includes a first two-core high-voltage socket (1) and a second two-core high-voltage socket (2). The first two-core high-voltage socket (1) and the second two-core high-voltage socket (2) are installed on the same side of the high-voltage adapter box body (13). The first two-core high-voltage socket (1) and the second two-core high-voltage socket (2) are respectively connected to the corresponding first two-core high-voltage plug (14) and second two-core high-voltage plug (15) of the vehicle's high-voltage wiring harness, thereby realizing the charging and discharging interaction between the battery and the vehicle. The low-voltage connector socket includes a first low-voltage socket (3) and a second low-voltage socket (6); the first low-voltage socket (3) is plugged into the first low-voltage plug (16) of the battery (18) swapping connector; the second low-voltage socket (6) is plugged into the second low-voltage plug (19) of the vehicle to realize low-voltage signal interaction between the vehicle and the battery (18); the first low-voltage socket (3) and the second low-voltage socket (6) are connected by a low-voltage wiring harness (12); the low-voltage wiring harness (12) is installed inside the high-voltage adapter box body (13).

2. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 1, characterized in that, The high-voltage adapter box body (13) is provided with a first fixed bracket (9) and a second fixed bracket (11) on both sides respectively; the first fixed bracket (9) and the second fixed bracket (11) are provided with mounting holes, and the mounting holes and bolts are connected to fix the high-voltage adapter box body (13) on the vehicle body.

3. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 1, characterized in that, The four-core battery swapping connector plug (17) is connected to the four-core battery swapping connector socket (20); the four-core battery swapping connector socket (20) is mounted on the battery (18).

4. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 1, characterized in that, The terminal of the four-core power swap connector plug (17) is bolted to the high-voltage connector socket after passing through the single-core high-voltage connector (10).

5. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 1, characterized in that, The number of single-core high-voltage connectors (10) is 4, and the 4 single-core high-voltage connectors (10) are located on the same mounting surface of the high-voltage junction box body (13).

6. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 1, characterized in that, It also includes an upper cover plate (7) and a side cover plate (4), which are fixedly connected to the high voltage adapter box body (13) by bolts.

7. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 6, characterized in that, Waterproof sealing rings are provided at the connection points between the main body (13) of the high-voltage adapter box and the upper cover plate (7) and the side cover plate (4).

8. The high-voltage adapter box mechanism for a four-core battery swapping connector for electric vehicles according to claim 1, characterized in that, The high-voltage adapter box body (13) has an irregular cavity structure with ten sides.

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