An isolated power supply connection structure and charging pile

Abstract

The application provides an isolated power supply connection structure and a charging pile, and belongs to the technical field of charging piles, and comprises a shell, which has an accommodating cavity for accommodating a circuit board and a wiring terminal in the interior, and the accommodating cavity is sealed by a first back plate; the shell further has a mounting cavity, which is arranged separately from the accommodating cavity, and the mounting cavity is sealed by a second back plate; the mounting cavity is provided with a wire inlet hole for extending into a power line; a wire adapter is mounted in the mounting cavity, and the wire adapter is electrically connected to the wiring terminal in the accommodating cavity through a wire. By separately arranging the mounting cavity and the accommodating cavity, the two ends of the wire are connected to the wiring terminal and the wire adapter of the two cavities respectively during production of the equipment, and the power line needs to be installed during installation, and only the second back plate needs to be disassembled, and the power line can be connected to the wire adapter, so that the whole back plate does not need to be disassembled, the process is relatively simple, and time cost and economic cost are saved.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, specifically to an isolated power connection structure and a charging pile. Background Technology

[0002] Charging piles can be installed in parking lots or charging stations in public buildings and residential communities, and can charge various models of electric vehicles according to different voltage levels.

[0003] The charging station has internal wiring terminals for connecting an external power supply. During installation, the back cover of the charging station must first be removed, the external power supply connected to the wiring terminals, and then the back cover reinstalled.

[0004] Because the charging pile contains high-voltage and precision components, disassembling the entire back cover of the charging pile is a complex and cumbersome process. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the entire back panel of the charging pile needs to be disassembled when installing the power cord of the charging pile in the prior art, thereby providing an isolated power connection structure and a charging pile.

[0006] To address the aforementioned technical problems, this invention provides an isolated power connection structure and a charging pile, comprising: a housing with an internal cavity for accommodating a circuit board and wiring terminals, the cavity being sealed by a first back plate; the housing also includes an installation cavity, which is separated from the cavity and sealed by a second back plate; the installation cavity has an inlet hole for inserting a power cord; a wire adapter is installed inside the installation cavity, and the wire adapter is electrically connected to the wiring terminals inside the cavity via a wire.

[0007] Preferably, the housing has a surrounding cavity that surrounds the edge of the housing. The surrounding cavity includes a first surrounding cavity that communicates with the receiving cavity and the mounting cavity, respectively. The wires between the receiving cavity and the mounting cavity are housed in the first surrounding cavity.

[0008] Preferably, a wire outlet hole is provided on the side of the surrounding cavity near the mounting cavity.

[0009] Preferably, a connector is provided on the wire outlet hole of the surrounding cavity.

[0010] Preferably, a network cable adapter is provided on the side of the mounting cavity away from the side used for the power supply. The network cable adapter is electrically connected to the circuit board inside the housing cavity via a network cable. The network cable adapter and the housing cavity are connected through a second surrounding cavity. The network cable between the network cable adapter and the housing cavity is located inside the second surrounding cavity.

[0011] Preferably, the mounting cavity is provided with a network cable inlet for passing a network cable through.

[0012] Preferably, a sealing ring is provided on the network cable inlet.

[0013] Preferably, a sealing ring is provided on the inlet hole.

[0014] Preferably, the mounting cavity is located at the lower end of the housing.

[0015] In addition, a charging pile is also provided, including: an isolated power connection structure of any of the above solutions.

[0016] The technical solution of this invention has the following advantages:

[0017] 1. The isolated power connection structure provided by the present invention separates the mounting cavity from the housing cavity by setting an installation cavity outside the housing cavity for accommodating the circuit board and the terminal block. During equipment production, the two ends of the wire are connected to the terminal block and the wire adapter respectively. When the power cord needs to be installed during installation, only the second back plate needs to be disassembled and the power cord connected to the wire adapter. Since it is not necessary to disassemble the entire back plate, the process is relatively simple, saving time and economic costs.

[0018] 2. The isolated power connection structure provided by the present invention, by setting a surrounding cavity on the housing, places the wires inside the surrounding cavity, and separates the wires from precision components such as circuit boards and terminals, so as to prevent the wires from generating a large amount of heat due to high current during the operation of the equipment, which would cause the precision electrical components to age and be damaged.

[0019] 3. The isolated power connection structure provided by the present invention can fix the position of the wire through the outlet hole, so as to avoid the wire and the wire adapter from overheating and burning the electrical components due to poor contact during transportation caused by collision, bumps and other reasons. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A perspective view of a charging pile provided in an embodiment of the present invention;

[0022] Figure 2 This is a front view of a cross-sectional view of a charging pile provided in an embodiment of the present invention.

[0023] Figure 3This is a perspective view of a cross-sectional view of a charging pile provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Housing; 2. Circuit board; 3. Terminal block; 4. Receiving cavity; 5. First back plate; 6. Mounting cavity; 7. Second back plate; 8. Inlet hole; 9. Wire adapter; 10. First surrounding cavity; 11. Second surrounding cavity; 12. Outlet hole; 13. Connector; 14. Network cable adapter; 15. Network cable inlet; 16. Sealing ring. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] The isolated power connection structure provided in this embodiment is used for equipment such as charging piles. Specifically, it allows the power cord to be connected to the wiring terminals inside the charging pile without disassembling the entire back panel during installation.

[0031] like Figure 1 , 2As shown, the isolated power connection structure provided in this embodiment includes: a housing 1, with an internal cavity 4 for accommodating a circuit board 2 and a terminal block 3, the cavity 4 being sealed by a first back plate 5; the housing 1 also has an installation cavity 6, which is separated from the cavity 4 and sealed by a second back plate 7. The installation cavity 6 has an inlet hole 8 for inserting a power cord, and a wire adapter 9 is installed inside the installation cavity 6. The wire adapter 9 is electrically connected to the terminal block 3 inside the cavity 4 via a wire. The cavity 4 includes the circuit board 2 and the terminal block 3. The installation cavity 6 is provided outside the cavity 4, separating it from the cavity 4. During equipment production, the two ends of the wire are connected to the terminal block 3 and the wire adapter 9 respectively. When installing the power cord, only the second back plate 7 needs to be removed, and the power cord is connected to the wire adapter 9. Since it is not necessary to remove the entire back plate or operate the wiring and fixing of the power cord, the process is simpler, saving time and economic costs.

[0032] like Figure 2 As shown, this embodiment provides an isolated power connection structure. The housing 1 has a surrounding cavity that surrounds the edge of the housing 1. The surrounding cavity includes a first surrounding cavity 10, which communicates with both the receiving cavity 4 and the mounting cavity 6. Wires between the receiving cavity 4 and the mounting cavity 6 are housed within the first surrounding cavity 10. The first surrounding cavity 10 connects the receiving cavity 4 and the mounting cavity 6, serving to house the wires, preventing them from aging due to air exposure, and also allowing for proper wiring routing to avoid clutter. Alternatively, as an alternative embodiment, the surrounding cavity can also be located inside the receiving cavity 4.

[0033] like Figure 3 As shown, this is the isolated power connection structure provided in this embodiment. A cable outlet 12 is provided on the side of the surrounding cavity near the mounting cavity 6. In this embodiment, the cable outlet 12 is provided with the output current terminal of the circuit board 2, which is used to input the allowed output current of the device to the charging device through the cable outlet 12. Alternatively, as an alternative embodiment, the cable outlet 12 can be located inside the mounting cavity 6.

[0034] like Figure 3 As shown, this embodiment provides an isolated power connection structure with a connector 13 on the outlet hole 12. One end of the connector 13 is used to connect to the output terminal of the device; in this embodiment, it can be used to connect to the charging gun of a charging station. The wire is electrically connected to the circuit board 2 through the connector 13. By placing the wire inside the surrounding cavity, the insulation layer of the wire can be protected from damage and wear during use, thus protecting the safety of the circuit. Alternatively, as an alternative embodiment, the connector 13 can be located inside the mounting cavity 6.

[0035] like Figure 2 , 3 As shown, this embodiment provides an isolated power connection structure. A network cable adapter 14 is provided on the side of the mounting cavity 6 away from the power outlet. The network cable adapter 14 is electrically connected to the circuit board 2 inside the receiving cavity 4 via a network cable. The network cable adapter 14 and the receiving cavity 4 are connected through a second surrounding cavity 11, and the network cable between the network cable adapter 14 and the receiving cavity 4 is located within the second surrounding cavity 11. A power outlet hole is provided on the side of the mounting cavity 6 near the power outlet hole 12, used to fix the power cable. The second surrounding cavity 11 is connected to the first surrounding cavity 10. The network cable adapter 14 is provided on the mounting cavity 6 and is electrically connected to the circuit board 2 inside the receiving cavity 4 via a network cable. A network cable inlet 15 is provided on the mounting cavity 6 for the network cable to pass through. The network cable is connected to the network adapter through the network inlet. A sealing ring 16 is provided on the network cable inlet 15 to improve the protection of the network cable of the charging pile and prevent bending of the network cable during use from affecting network speed. The network cable is housed within the second surrounding cavity 11, separate from the first surrounding cavity 10 where the wires are placed, to prevent the wires from overheating under high current and affecting network data transmission. Alternatively, as an alternative embodiment, the network adapter can be located at the bottom of the surrounding cavity near the mounting cavity 6.

[0036] like Figure 3 As shown, this is the isolated power connection structure provided in this embodiment, with a sealing ring 16 provided on the inlet hole 8. The sealing ring 16 can prevent rainwater, dust, and other objects from entering the interior of the mounting cavity 6. In addition, as an alternative embodiment, other structures with sealing effects can be provided on the inlet hole 8.

[0037] like Figure 2 , 3 As shown, this is the isolated power connection structure provided in this embodiment, with the mounting cavity 6 located at the lower end of the housing 1. In this embodiment, the complete housing 1 needs to be installed on the charging pile bracket, and the power cord and network cable need to pass through the charging pile bracket and enter from the bottom of the charging pile to prevent dust, pollutants, and other objects from entering the mounting cavity 6.

[0038] The working principle of the isolated power connection structure is as follows: the wiring terminal 3 located inside the housing cavity 4 is connected to the wire adapter 9 at the bottom of the charging pile through the wire. During installation, only the second back panel 7 needs to be opened to install the external power cord onto the wire adapter 9 to complete the circuit connection of the charging pile.

[0039] In addition, such as Figure 3As shown, a charging pile is also provided, including: an isolated power connection structure of any of the above-described solutions. The circuit board 2 of the charging pile is disposed in the receiving cavity 4, and a first back plate 5 is disposed in the receiving cavity 4. Two holes are provided between the surrounding cavity and the receiving cavity 4, one being a through hole for connecting the external power supply terminal 3, and the other being a through hole for connecting the wire of the connector 13 to the circuit. A mounting cavity 6 is disposed at the bottom of the surrounding cavity, and a second back plate 7 is disposed at the bottom of the mounting cavity 6. In this embodiment, the second back plate 7 and the mounting cavity 6 are connected by a snap-fit ​​mechanism.

[0040] Implementation of the charging pile: The circuit board 2 of the charging pile is set in the receiving cavity 4, and the circuit board 2 is provided with wiring terminals 3. The surrounding cavity includes a first surrounding cavity 10 and a second surrounding cavity 11, which form a closed loop around the receiving cavity 4. The upper part of the surrounding cavity is provided with a hole for wires, network cables, etc. to pass through. The remaining three sides of the surrounding cavity are separated from the receiving cavity 4 to form a channel. This channel is used to increase the contact area between the receiving cavity 4 and the air, so that the heat generated by the circuit board 2 during use can be quickly discharged. The mounting cavity 6 is located at the bottom of the surrounding cavity. The wire adapter 9 is located on the top surface of the mounting cavity 6. The network cable adapter 14 is located on the side of the mounting cavity 6 near the wire adapter 9. The network cable is set in the second surrounding cavity 11 and connected to the circuit board 2. A power outlet hole is opened on one side of the mounting cavity 6 for the wire to pass through. The connector 13 is located on the side close to the mounting cavity 6. One end of the connector 13 is connected to the charging gun, and the other end is connected to the wire. The wire is laid in the first surrounding cavity 10, and the other end of the wire is connected to the circuit board 2.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An isolated power supply connection structure, characterized in that, include: The housing (1) has an internal cavity (4) for accommodating the circuit board (2) and the terminal block (3), the cavity (4) being sealed by a first back plate (5); The housing (1) also has an installation cavity (6), which is separated from the receiving cavity (4). The installation cavity (6) is sealed by a second back plate (7). The installation cavity (6) has an inlet hole (8) for inserting a power cord. A wire adapter (9) is installed in the installation cavity (6). The wire adapter (9) is electrically connected to the terminal block (3) in the receiving cavity (4) via a wire. The housing (1) has a surrounding cavity, which connects the mounting cavity (6) and the receiving cavity (4). The surrounding cavity is used to house the power line and is arranged around the edge of the housing (1). At least three sides of the surrounding cavity are separated from the receiving cavity (4) to form a channel around the receiving cavity, the channel being used for heat dissipation.

2. The isolated power connection structure according to claim 1, characterized in that, The surrounding cavity includes a first surrounding cavity (10), which is connected to the receiving cavity (4) and the mounting cavity (6) respectively. The wires between the receiving cavity (4) and the mounting cavity (6) are housed in the first surrounding cavity (10).

3. The isolated power connection structure according to claim 2, characterized in that, A wire outlet hole (12) is provided on the side of the surrounding cavity near the mounting cavity (6).

4. The isolated power connection structure according to claim 3, characterized in that, A connector (13) is provided on the outlet hole (12).

5. The isolated power connection structure according to claim 2, characterized in that, A network cable adapter (14) is provided on the side of the mounting cavity (6) away from the side used for the power supply. The network cable adapter (14) is electrically connected to the circuit board (2) in the receiving cavity (4) via a network cable. The network cable adapter (14) and the receiving cavity (4) are connected through a second surrounding cavity (11). The network cable between the network cable adapter (14) and the receiving cavity (4) is located in the second surrounding cavity (11).

6. The isolated power connection structure according to claim 5, characterized in that, The mounting cavity (6) is provided with a network cable inlet (15) for passing through the network cable.

7. The isolated power connection structure according to claim 6, characterized in that, A sealing ring (16) is provided on the network cable inlet (15).

8. The isolated power connection structure according to any one of claims 1-7, characterized in that, A sealing ring (16) is provided on the inlet hole (8).

9. The isolated power connection structure according to any one of claims 1-7, characterized in that, The mounting cavity (6) is located at the lower end of the housing (1).

10. A charging pile, characterized in that, include: The isolated power connection structure according to any one of claims 1-9.

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