Alternating-current and direct-current charging seat and alternating-current and direct-current charging seat assembly for electric vehicle

Abstract

The utility model discloses an alternating current and direct current charging seat and an alternating current and direct current charging seat assembly for an electric vehicle, the alternating current and direct current charging seat comprises a shell, a cover and a circuit board accommodated in the shell, the circuit board is provided with a chip and a plurality of low-voltage output ends, the cover is provided with a plurality of through holes, and the through holes are arranged in the shell. The low-voltage output end of the circuit board is connected with a low-voltage connector outside the cover through a first through hole in the through holes, and the low-voltage output end comprises two low-voltage charging output ends, two low-voltage charging signal output ends and a discharging signal output end. According to the alternating-current and direct-current charging seat, the number of wire harnesses is greatly reduced while the functions of an existing alternating-current and direct-current charging seat are kept, the material cost of the wire harnesses is reduced due to the fact that the number of connectors at the two ends of the wire harnesses is reduced, in addition, due to the fact that the number of the wire harnesses is reduced, the later wire harness section manufacturing process is reduced, and the manufacturing cost of the wire harnesses is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology for electric vehicles, specifically to an AC / DC charging socket for electric vehicles. Background Technology

[0002] The charging dock at the vehicle end is an important external connection device for electric vehicles. Typically, the charging dock contains high-voltage and low-voltage cable terminals for connecting to an external charging head, allowing the charging head to indirectly connect to the high-voltage and low-voltage cables inside the vehicle. Existing AC / DC charging docks contain a large number of low-voltage wiring harnesses, compared to approximately 24 low-voltage harnesses (typically 6 for high-voltage). These cables are thick and long, making assembly difficult and complex. Furthermore, the rear housing, used for sealing, needs to pass through these cables and be assembled onto the front housing, further complicating the assembly process and reducing efficiency. During manufacturing, the wiring harnesses can become tangled and twisted, potentially causing short circuits or breakage, impacting production efficiency and delivery time. In severe cases, this can reduce safety and reliability, even directly affecting the safety of the charging process. Utility Model Content

[0003] In order to overcome the above-mentioned or other defects in the prior art, this utility model proposes an AC / DC charging socket for electric vehicles, which greatly reduces the number of wiring harnesses while maintaining the functions of existing AC / DC charging sockets.

[0004] According to one aspect of the present invention, an AC / DC charging socket for an electric vehicle is provided, comprising a housing and a cover, a circuit board housed in the housing, the circuit board having a chip and a plurality of low-voltage output terminals, the cover having a plurality of through holes, and the low-voltage output terminals of the circuit board being connected to a low-voltage connector outside the cover via a first through hole in the through holes.

[0005] In one exemplary embodiment, the AC / DC charging dock further includes a ground bus disposed outside the cover, wherein the ground bus is configured as a ground bus shared by a high-voltage AC circuit and a high-voltage DC circuit, and the ground bus is connected to a ground output terminal inside the housing via a second through hole in the cover.

[0006] In one exemplary embodiment, the ground bus on the outside of the cover is connected to the ground output terminal inside the housing via a conductive bolt, one end of the ground bus is connected to the conductive bolt, and the other end of the ground bus extends to and contacts the body of the electric vehicle.

[0007] In one exemplary embodiment, the AC / DC charging dock further includes an electronic lock disposed outside the housing. The circuit board is also provided with an electronic lock signal transmission terminal and an electronic lock charging output terminal, which are electrically connected to the electronic lock outside the housing, respectively.

[0008] In an exemplary embodiment, the electronic lock is mounted on the outside of the housing via a snap-fit ​​device, wherein the electronic lock signal transmission terminal and the electronic lock charging output terminal of the circuit board are electrically connected to the electronic lock via a third through hole in the cover.

[0009] In one exemplary embodiment, the low-voltage output terminal includes two low-voltage charging output terminals, two low-voltage charging signal output terminals, and one discharging signal output terminal.

[0010] In one exemplary embodiment, the AC / DC charging dock further includes multiple signal input terminals, and the circuit board is also provided with multiple spring contacts, each of the signal input terminals being inserted into one of the spring contacts, thereby electrically connecting to the circuit board.

[0011] In one exemplary embodiment, the spring is soldered to the circuit board via SMT.

[0012] In one exemplary embodiment, the AC / DC charging socket further includes a high-voltage terminal, which includes a high-voltage AC terminal and a high-voltage DC terminal. The high-voltage terminal passes through the circuit board and is connected to a high-voltage wiring harness, wherein the circuit board and the high-voltage terminal are electrically insulated from each other.

[0013] According to one aspect of the present invention, an AC / DC charging dock assembly is provided, comprising a signal transmission line and the aforementioned AC / DC charging dock, wherein the signal transmission line comprises five signal lines, which are electrically connected to the plurality of low-voltage output terminals of the circuit board via the low-voltage connector.

[0014] According to the aforementioned exemplary embodiments of the present invention, the AC / DC charging dock significantly reduces the number of wire harnesses while maintaining the existing AC / DC charging dock functions. By reducing the number of connectors at both ends of the wire harness, the material cost of the wire harness is reduced. Furthermore, due to the reduction in the number of wire harnesses, the subsequent wire harness segment manufacturing process is reduced, which also reduces the manufacturing cost of the wire harness. Attached Figure Description

[0015] To make the objectives, features, and advantages of this utility model more apparent and understandable, the utility model will be further described below with reference to the accompanying drawings and specific embodiments, wherein:

[0016] Figure 1 This is a perspective view of an AC / DC charging dock according to an embodiment of the present invention;

[0017] Figure 2 This is a perspective view of an AC / DC charging dock with the cover removed according to an embodiment of the present invention;

[0018] Figure 3 This is a detailed schematic diagram of the printed circuit board of an AC / DC charging socket according to an embodiment of the present invention; and

[0019] Figure 4 This is a detailed schematic diagram of the signal terminals of the circuit board of an AC / DC charging socket according to an embodiment of the present invention. Detailed Implementation

[0020] While the present invention will be fully described with reference to the accompanying drawings containing preferred embodiments, it should be understood before this description that those skilled in the art can modify the invention described herein to achieve the technical effects of the present invention. Therefore, it should be understood that the above description is a broad disclosure to those skilled in the art and is not intended to limit the exemplary embodiments described herein.

[0021] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a full understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0022] According to the overall concept of this utility model, an AC / DC charging socket for electric vehicles is provided, including a housing and a cover, a circuit board housed in the housing, a chip and a plurality of low-voltage output terminals are provided on the circuit board, and a plurality of through holes are provided on the cover. The low-voltage output terminals of the circuit board are connected to a low-voltage connector outside the cover through a first through hole in the through holes, wherein the low-voltage output terminals include two low-voltage charging output terminals, two low-voltage charging signal output terminals and one discharging signal output terminal.

[0023] According to the embodiments of this utility model, while maintaining the existing AC / DC charging dock functions, the number of wire harnesses is greatly reduced. By reducing the number of connectors at both ends of the wire harness, the material cost of the wire harness is reduced. In addition, due to the reduction in the number of wire harnesses, the subsequent wire harness segment manufacturing process is reduced, which also reduces the manufacturing cost of the wire harness.

[0024] Figure 1 This is a perspective view of an AC / DC charging dock 100 according to an embodiment of the present invention; Figure 2 This is a perspective view of an AC / DC charging dock 100 with its cover 300 removed, according to an embodiment of the present invention. Figure 3This is a detailed schematic diagram of the printed circuit board 400 of an AC / DC charging dock 100 according to an embodiment of the present invention.

[0025] The AC / DC charging socket 100 for electric vehicles according to this utility model includes a housing 200 and a cover 300. A circuit board 400 is housed in the housing 200. The circuit board 400 is provided with a chip 410 and multiple low-voltage output terminals 420. The cover 300 is provided with multiple through holes 310. The low-voltage output terminals 420 of the circuit board 400 are connected to a low-voltage connector 500 outside the cover 300 via a first through hole 311 in one of the through holes 310. The low-voltage output terminals 420 include two low-voltage charging output terminals, two low-voltage charging signal output terminals, and one discharging signal output terminal. In the AC / DC charging socket 100 of this utility model, the arrangement of the printed circuit board 400 and the chip 410 enables signal control, allowing all low-voltage lines to be input to the chip 410. By sharing some lines, the number of output lines is reduced.

[0026] As shown in the figure, in an exemplary embodiment, the AC / DC charging dock 100 further includes a ground bus 600 disposed outside the cover 300, wherein the ground bus 600 is configured as a ground bus 600 shared by a high-voltage AC circuit and a high-voltage DC circuit, and the ground bus 600 is connected to a ground output terminal 210 inside the housing 200 via a second through hole 312 of the cover 300.

[0027] In an exemplary embodiment, the ground bus 600 on the outside of the cover 300 is connected to the ground output terminal 210 inside the housing 200 via a conductive bolt 220. The ground bus 600 has a general Z-shaped shape, with one end connected to the conductive bolt 220 and the other end extending to and contacting the body of the electric vehicle.

[0028] In the AC / DC charging socket 100 of this utility model, the number of AC and DC PE terminal harnesses is reduced. The DC and AC PE terminals are internally connected through the printed circuit board 400, and finally connected to the vehicle body through a ground bus 600, realizing a common ground for AC and DC terminals and reducing the wiring harness manufacturing process.

[0029] In an exemplary embodiment, the AC / DC charging dock 100 further includes an electronic lock 700, which is disposed outside the housing 200. The circuit board 400 is also provided with an electronic lock signal transmission terminal 431 and an electronic lock charging output terminal 432, which are electrically connected to the electronic lock 700 outside the housing 200, respectively.

[0030] In an exemplary embodiment, the electronic lock 700 is mounted on the outside of the housing 200 by a snap-fit ​​component, wherein the electronic lock signal transmission terminal 431 and the electronic lock charging output terminal 432 of the circuit board 400 are electrically connected to the electronic lock 700 via the third through hole 313 of the cover 300.

[0031] In the AC / DC charging dock 100 of this utility model, the electronic lock 700 is snapped together with the charging dock 100, and the low-voltage output part of the electronic lock 700 and the charging dock 100 are connected by a terminal plug-in, which eliminates the need for the output wire of the electronic lock 700 and also reduces the number of low-voltage output wires of the charging dock 100.

[0032] In one exemplary embodiment, the low-voltage output terminal 420 includes two low-voltage charging output terminals, two low-voltage charging signal output terminals, and one discharging signal output terminal.

[0033] Figure 4 This is a detailed schematic diagram of the signal terminals of the circuit board 400 of the AC / DC charging dock 100 according to an embodiment of the present invention.

[0034] In an exemplary embodiment, the AC / DC charging dock 100 further includes a plurality of signal input terminals 440, and the circuit board 400 is also provided with a plurality of spring contacts 450, each of the signal input terminals 440 being inserted into one of the spring contacts 450, thereby being electrically connected to the circuit board 400.

[0035] In one exemplary embodiment, the spring 450 is soldered to the circuit board 400 via SMT.

[0036] In an exemplary embodiment, the AC / DC charging base 100 further includes a high-voltage terminal 800, which includes a high-voltage AC terminal and a high-voltage DC terminal. The high-voltage terminal 800 passes through the circuit board 400 and is connected to a high-voltage wiring harness, wherein the circuit board 400 and the high-voltage terminal 800 are electrically insulated from each other.

[0037] According to one aspect of the present invention, an AC / DC charging dock assembly is provided, including a signal transmission line and the aforementioned AC / DC charging dock 100. The signal transmission line includes five signal lines, which are electrically connected to the plurality of low-voltage output terminals 420 of the circuit board 400 via the low-voltage connector 500.

[0038] The advantages of the AC / DC charging dock according to this utility model are that, while maintaining the functions of the existing AC / DC charging dock, the number of wire harnesses is greatly reduced. By reducing the number of connectors at both ends of the wire harness, the material cost of the wire harness is reduced. In addition, due to the reduction in the number of wire harnesses, the subsequent wire harness segment manufacturing process is reduced, which also reduces the manufacturing cost of the wire harness.

[0039] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, thereby achieving more AC / DC charging bases while solving the technical problems of this utility model.

[0040] After a detailed description of the preferred embodiments of the present invention, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the appended claims, and the present invention is not limited to the embodiments described in the specification. It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of the present invention.

Claims

1. An AC / DC charging station (100) for an electric vehicle, characterized in that, The device includes a housing (200) and a cover (300), and a circuit board (400) housed in the housing (200). The circuit board (400) is provided with a chip (410) and a plurality of low-voltage output terminals (420). The cover (300) is provided with a plurality of through holes (310). The low-voltage output terminals (420) of the circuit board (400) are connected to a low-voltage connector (500) outside the cover (300) via a first through hole (311) in the through holes (310).

2. The AC / DC charging station (100) according to claim 1, characterized in that It also includes a ground bus (600) disposed outside the cover (300), wherein the ground bus (600) is configured as a ground bus (600) shared by a high-voltage AC circuit and a high-voltage DC circuit, and the ground bus (600) is connected to a ground output terminal (210) inside the housing (200) via a second through hole (312) of the cover (300).

3. The AC / DC charging dock (100) according to claim 2, characterized in that, The ground bus (600) on the outside of the cover (300) is connected to the ground output terminal (210) inside the housing (200) by a conductive bolt (220). One end of the ground bus (600) is connected to the conductive bolt (220), and the other end of the ground bus (600) extends to and contacts the body of the electric vehicle.

4. The AC / DC charging station (100) according to any one of claims 1-3, characterized in that, It also includes an electronic lock (700), which is disposed outside the housing (200). The circuit board (400) is also provided with an electronic lock signal transmission terminal (431) and an electronic lock charging output terminal (432), which are electrically connected to the electronic lock (700) outside the housing (200).

5. The AC / DC charging station (100) according to claim 4, characterized in that The electronic lock (700) is installed on the outside of the housing (200) by a snap fastener. The electronic lock signal transmission terminal (431) and the electronic lock charging output terminal (432) of the circuit board (400) are connected to the terminals of the electronic lock (700) through the third through hole (313) of the cover (300) to form an electrical connection.

6. The AC / DC charging dock (100) according to any one of claims 1-3, characterized in that, The low-voltage output terminal (420) includes two low-voltage charging output terminals, two low-voltage charging signal output terminals, and one discharging signal output terminal.

7. The AC / DC charging dock (100) according to any one of claims 1-3, characterized in that, It also includes multiple signal input terminals (440), wherein multiple spring contacts (450) are provided on the circuit board (400), and each signal input terminal (440) is inserted into one of the spring contacts (450) to be electrically connected to the circuit board (400).

8. The AC / DC charging dock (100) according to claim 7, characterized in that, The spring (450) is soldered to the circuit board (400) by SMT.

9. The AC charging station (100) according to any of claims 1-3, characterized in that It also includes a high-voltage terminal (800), which includes a high-voltage AC terminal and a high-voltage DC terminal. The high-voltage terminal (800) passes through the circuit board (400) and is connected to the high-voltage wiring harness. The circuit board (400) and the high-voltage terminal (800) are electrically insulated from each other.

10. An AC / DC charging station assembly comprising: Includes a signal transmission line and an AC / DC charging socket (100) according to any one of claims 1-9, wherein the signal transmission line is electrically connected to the plurality of low-voltage output terminals (420) of the circuit board (400) via the low-voltage connector (500).

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