Integrated alternating current charging module for charging pile system

Abstract

The utility model discloses an integrated AC charging module used for a charging pile system, comprising a driving mechanism and a coupling linkage mechanism which are installed in a main cavity of a housing structure, and a main controller which is detachably arranged in a side cavity, and the main controller is used for controlling an action instruction of the driving mechanism. The coupling linkage mechanism is provided with a plurality of groups of moving contacts and a plurality of groups of static contacts which share one set of driving mechanism, so that on-off of all phase lines and zero lines is controlled, multi-loop on-off control is realized, and the coupling linkage mechanism is simple in structure and convenient to operate. The alternating current charging module adopting the technical scheme realizes integrated installation of the driving mechanism, the coupling linkage mechanism and the main controller, has the characteristics of small size, large contact opening distance, low temperature rise, improved load capacity and convenience in maintenance, simplifies the installation process, enables the product structure to be more compact, reduces the cost, conforms to the miniaturization and integration trend of the product, and is suitable for popularization and application. The method is suitable for new energy charging piles.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging, in particular to an integrated AC charging module for a charging pile system. Background Art

[0002] With the development of new energy technologies, more and more new energy electric vehicles are being put into use. During the use of electric vehicles, they need to be charged frequently, so this requires the establishment of more charging devices to meet the growing number of electric vehicles. Existing charging usually uses charging piles and charging guns to charge cars. Among them, the charging module is the core part of the charging pile and is used to control the on and off of the power supply. This charging module mainly includes multiple sets of electromagnetic relays electrically connected to the charging control board. After the charging pile scans the code to pay, it will connect to the power supply and start charging. The conversion from the power-off state to the power-on state is all achieved through multiple sets of electromagnetic relays. Through multiple sets of electromagnetic relays, all phase lines and neutral lines of the AC power supply can be controlled to be connected or disconnected. When the charging module adopts a three-phase four-wire power supply wiring, the number of electromagnetic relays used is more. Multiple electromagnetic relays are welded to the charging control board through pins, which takes up a lot of installation space, increases the product volume, and has high installation costs. This is not conducive to the development trend of miniaturization and integration of charging devices. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the problem in the prior art that the charging module controls the connection or disconnection of all phase lines and neutral lines through multiple sets of electromagnetic relays. The multiple sets of electromagnetic relays are welded on the charging control board, which takes up a large installation space and has a high installation cost, which is not conducive to the miniaturization and integration of the charging module.

[0004] To solve the above technical problems, the present invention provides an integrated AC charging module for a charging pile system, comprising:

[0005] The housing structure comprises a main cavity and a side cavity connected in one piece; the two ends of the main cavity are respectively provided with a plurality of first terminals and a plurality of second terminals;

[0006] A contact system comprising a drive mechanism and a coupling linkage mechanism disposed within the main cavity, the coupling linkage mechanism comprising a contact linkage member connected to the drive mechanism, and multiple groups of movable contacts disposed on the contact linkage member and connected to multiple groups of first terminals, and multiple groups of stationary contacts connected to multiple groups of second terminals, wherein the contact linkage member rotates under the drive of the drive mechanism to drive the multiple groups of movable contacts to engage or disengage with the multiple groups of stationary contacts;

[0007] The main controller is detachably arranged in the side cavity through a plug-in structure. The main controller is connected to the driving mechanism and is used to control the start and stop actions of the driving mechanism.

[0008] As a preferred solution, the plug-in structure includes at least one group of plug-in slots relatively arranged on the inner walls at both ends of the side cavity, and the two ends of the main controller are inserted into a group of plug-in slots and arranged upright in the side cavity.

[0009] As a preferred solution, a zero-sequence transformer and multiple current transformers located on one side of multiple first terminals are provided in the shell structure. The multiple first terminals and the multiple moving contacts are connected through multiple soft wires. The multiple soft wires pass through the zero-sequence transformer and then pass through the multiple current transformers respectively. The zero-sequence transformer and the current transformer are electrically connected to the main controller respectively.

[0010] As a preferred solution, a through slot is provided between the main cavity and the side cavity.

[0011] As a preferred solution, the driving mechanism includes a driving coil vertically installed in the shell structure, and a moving iron core and a static iron core relatively arranged at both ends of the driving coil. The driving coil is electrically connected to the main controller, and the contact linkage is rotatably arranged in the shell structure through a swing arm assembly, and is vertically cross-connected to the moving iron core. A group of reaction springs are provided between the top of the driving coil and the contact linkage.

[0012] As a preferred solution, a mounting boss is provided around the driving mechanism in the shell structure, the contact linkage extends along the width direction of the shell structure and is located on the upper side of the driving mechanism, and the swing arm assembly includes two lower swing arms relatively arranged at the bottom of the contact linkage, and one end of the two lower swing arms extending in the same direction is rotatably connected to the side walls on both sides of the mounting boss.

[0013] As a preferred solution, the two lower swing arms are integrally connected to the bottom of the contact linkage in an L-shaped structure, two rotating holes are provided on the side walls of the mounting boss, and the ends of the two lower swing arms away from the contact linkage are provided with rotating shafts connected to the rotating holes.

[0014] As a preferred solution, a clearance groove for the moving iron core to pass through is provided in the middle of the contact linkage, a connecting shaft connected to the contact linkage is fixedly inserted in the middle of the moving iron core, and a strip-shaped guide hole for the connecting shaft to pass through is provided along the length direction of the contact linkage.

[0015] As a preferred solution, a plurality of contact holes for installing a plurality of moving contacts are arranged at intervals on the contact linkage, and a contact compression spring elastically connected to the moving contact is provided in the contact hole. One end of the moving contact extends out of the contact hole and is connected to the first terminal through a soft wire, and the other end extends out of the contact hole and is arranged opposite to the static contact; the shell structure includes a plurality of isolation grooves arranged at intervals on both sides of the mounting boss, and a plurality of static contacts are installed in the plurality of isolation grooves to cooperate with a plurality of moving contacts.

[0016] As a preferred solution, a shell cover is provided on the top of the shell structure, and the shell cover is provided with multiple operating holes corresponding to the multiple terminal slots at both ends of the shell structure, and two wiring covers covering the multiple operating holes are provided at both ends of the shell structure.

[0017] The technical solution of the utility model has the following advantages over the prior art:

[0018] 1. In the integrated AC charging module provided by the present invention, the internal space utilization rate of the main cavity of the shell structure is high, and the coupling linkage mechanism and the drive mechanism can be highly integrated in a unified main cavity, and the side cavity of the shell structure is specially designed for a pluggable main controller, so that the main controller is installed in the side cavity through a plug-in structure. This design facilitates the installation and disassembly of the main control board, and the main control board can be repaired or replaced without complicated operations during maintenance, thereby improving the convenience of maintenance. This coupling linkage mechanism has multiple sets of moving contacts and multiple sets of static contacts and shares a set of driving mechanisms, that is, through a set of driving mechanisms, the on and off of multiple sets of moving contacts and multiple sets of static contacts can be controlled in a linked manner, thereby controlling the on and off of all phase lines and neutral lines. It can flexibly adapt to a variety of phase line power supply standards and realize multi-circuit on-off control. Compared with the traditional method of welding multiple independent relays on the charging control board, the AC charging module designed using this technical solution is significantly smaller in size, greatly reduces the number of electromagnetic relays used, simplifies the installation process, makes the product structure more compact, reduces costs, and conforms to the miniaturization and integration trend of products.

[0019] 2. In the integrated AC charging module provided by the present invention, the two ends of the main controller are directly inserted into a group of sockets at both ends of the side cavity, so that the main controller is arranged vertically in the side cavity. No screws or other fasteners are required during the installation process, which greatly simplifies the disassembly and assembly process and facilitates subsequent maintenance. Moreover, the vertical stiffness of the vertically installed main controller is higher than the bending stiffness when installed horizontally, and it can withstand greater mechanical impact and has good heat dissipation performance. Obviously, multiple groups of sockets can be arranged at intervals in the side cavity to meet the vertical installation of multiple control boards, forming a vertical layered architecture to support multi-module integration, with high space utilization, expanded product functions, and conducive to the miniaturization and integration trend of products.

[0020] 3. In the integrated AC charging module provided by the present invention, the zero-sequence transformer and the current transformer are integrated and arranged on the first terminal side of the shell, and the flexible wire is connected in series by a design so that the flexible wire first passes through the zero-sequence transformer in a concentrated manner and then passes through the current transformer in phases, ensuring that the zero-sequence detection covers all phase lines and neutral lines to avoid missed detection. The zero-sequence transformer is used to detect leakage current / residual current, which is the core of realizing the leakage protection function. The multiple current transformers are used to monitor the current of each phase in real time, which is the core of realizing phase current monitoring and overload protection. The main controller processes the signals from the zero-sequence transformer and the current transformer in real time. When the protection algorithm detects that the line has a leakage or overload fault, the action of the driving mechanism can be instantaneously controlled, thereby driving the contact linkage to control multiple groups of moving and static contacts to disconnect contact to realize the leakage protection or overload protection function. This design enables the charging module to form a complete closed loop of safety detection-fast switching-intelligent control, which is in line with the development trend of efficient, reliable and easy-to-maintain new energy charging equipment.

[0021] 4. In the integrated AC charging module provided by the present invention, the main controller is vertically installed in the side cavity through the plug-in slot. A through slot is provided between the main cavity and the side cavity. The core function of the through slot is to provide the drive mechanism control line, mutual inductor signal line, terminal monitoring line, etc. in the main cavity with the shortest and most direct physical connection channel between the main control board in the side cavity, so that the wires are connected to the main controller through the through slot, reducing the confusion of the wiring harness, making the wiring neat and orderly, and facilitating production and maintenance.

[0022] 5. In the integrated AC charging module provided by the present invention, the driving mechanism adopts a vertically arranged driving coil and a moving and static iron core structure, and the coupling linkage mechanism adopts a contact linkage arranged horizontally above the driving coil. The contact linkage and the moving iron core are arranged in a three-dimensional cross pattern. When the moving iron core is driven to move by the electromagnetic force generated by the driving coil, the contact linkage is driven to swing a certain angle, thereby controlling the on and off of multiple groups of moving contacts and multiple groups of static contacts by linkage, realizing multi-circuit on-off control, replacing the combination of multiple groups of independent relays in the traditional solution, and significantly reducing the installation space. The integrated AC charging module is conducive to achieving high integration and miniaturization of the product through the integrated and leveraged architecture design of a single driving mechanism, contact linkage and multiple contact groups, and is suitable for scenarios with high requirements on space, cost and reliability, such as new energy charging piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific implementation or the description of the prior art.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the integrated AC charging module of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the integrated AC charging module of the present utility model;

[0026] Figure 3 for Figure 2 The structure diagram of the integrated AC charging module shown is a hidden part of the structure;

[0027] Figure 4 This is a schematic cross-sectional view of the integrated AC charging module of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the housing structure of the present utility model;

[0029] Figure 6 This is a structural diagram of the contact linkage member of the present utility model.

[0030] Explanation of the accompanying drawings: 1. Shell structure; 10. Shell cover; 11. First terminal; 12. Second terminal; 13. Main cavity; 14. Side cavity; 15. Through slot; 16. Plug slot; 2. Driving mechanism; 21. Driving coil; 22. Moving iron core; 23. Static iron core; 3. Contact linkage; 31. Connecting shaft; 32. Guide hole; 33. Contact hole; 34. Contact compression spring; 35. Give way slot; 4. Moving contact; 5. Static contact; 6. Lower swing arm; 61. Rotating shaft; 7. Mounting boss; 71. Rotating hole; 8. Reaction spring; 9. Wiring cover; 101. Main controller; 102. Zero-sequence transformer; 103. Current transformer. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] Example

[0035] This embodiment provides Figures 1-6 The integrated AC charging module for a charging pile system includes: a shell structure 1, a contact system and a main controller 101, wherein the shell structure 1 includes a main cavity 13 and a side cavity 14 connected to one side of the main cavity 13, and multiple groups of first terminals 11 and multiple groups of second terminals 12 are respectively provided at both ends of the main cavity 13; the contact system includes a driving mechanism 2 and a coupling linkage mechanism arranged in the main cavity 13, and the coupling linkage mechanism includes a contact linkage 3 connected to the driving mechanism 2, and multiple groups of moving contacts 4 arranged on the contact linkage 3 and connected to multiple groups of first terminals 11, and multiple groups of static contacts 5 connected to multiple groups of second terminals 12. Under the drive of the driving mechanism 2, the contact linkage 3 drives the multiple groups of moving contacts 4 to cooperate with or separate from the multiple groups of static contacts 5; the main controller 101 is detachably arranged in the side cavity 14 through a plug-in structure, and the main controller 101 is connected to the driving mechanism 2 and is used to control the start and stop actions of the driving mechanism 2.

[0036] In the above embodiment, according to the high utilization rate of the internal space of the main cavity of the shell structure 1, the coupling linkage mechanism and the driving mechanism 2 can be highly integrated in the unified main cavity 13, specifically by adopting a stacked and tightly arranged structure, and the side cavity of the shell structure 1 is specially designed for the pluggable main controller 101, so that the main controller 101 is installed in the side cavity 14 through the plug-in structure. This design facilitates the installation and removal of the main control board, and the main control board can be repaired or replaced without complicated operations during maintenance, thereby improving the convenience of maintenance. This coupling linkage mechanism has multiple sets of dynamic touch The head 4 and multiple groups of static contacts 5 share a set of driving mechanisms 2, that is, through a set of driving mechanisms 2, the on and off of multiple groups of moving contacts 4 and multiple groups of static contacts 5 can be controlled in a linked manner, thereby controlling the on and off of all phase lines and neutral lines. It can flexibly adapt to a variety of phase line power supply formats and realize multi-circuit on and off control. The charging module designed with this technical solution is significantly smaller in size than the traditional method of welding multiple independent relays on the charging control board, greatly reduces the number of electromagnetic relays used, simplifies the installation process, makes the product structure more compact, reduces costs, and conforms to the trend of miniaturization and integration of products.

[0037] For further optimization, refer to Figure 5 The plug-in structure includes at least one group of plug-in slots 16 relatively arranged on the inner walls of the two ends of the side cavity 14. The main controller 101 includes at least one control board and a strong current unit and a weak current unit arranged on the control board. The strong current unit is mainly responsible for processing high voltage and high current power transmission and drive control, while the weak current unit is mainly responsible for low voltage and low current signal processing and logic control processing. The main controller 101 of this structural design is installed in the shell and integrated into a whole. According to the separation of strong and weak current on the main controller, and the separation of the main controller and the power devices in the shell, electromagnetic interference and thermal interference can be avoided, safety is enhanced, the risk of failure is reduced, and the internal structure layout of the product is optimized to improve system integration. It is further preferably configured that the two ends of the control board are inserted into a group of plug-in slots 16 and are arranged upright in the side cavity 14. The entire installation process does not require screws or other fasteners, which greatly simplifies the disassembly and assembly process and facilitates subsequent maintenance. Moreover, the vertical stiffness of this main controller 101 is higher than the bending stiffness when installed horizontally, and it can withstand greater mechanical impact and has good heat dissipation performance. Obviously, the main controller can be designed with multiple vertical control panels, and multiple groups of plug-in slots 16 are arranged in the side cavity 14 according to the number of control panels, so as to meet the vertical installation of multiple control panels, forming a vertical layered architecture to support multi-module integration, high space utilization, expanded product functions, and in line with the miniaturization and integration trend of products.

[0038] In this embodiment, combined with Figure 1-Figure 3As shown, the housing structure 1 is provided with a zero-sequence mutual inductor 102 and a plurality of current mutual inductors 103 located on one side of the plurality of first terminals 11. The plurality of first terminals 11 are connected to the plurality of moving contacts 4 through a plurality of soft wires. The plurality of soft wires pass through the plurality of current mutual inductors 103 respectively after passing through the zero-sequence mutual inductor 102. The zero-sequence mutual inductor and the current mutual inductor 103 are electrically connected to the main controller 101 respectively. The main controller 101 has the function of data information processing. The components in the charging module are centrally controlled through protocols or lines with the main controller 101 as the core. The advantage of such a design is that the plurality of soft wires are first concentrated through the zero-sequence mutual inductor 102 and then phase-by-phase through the current mutual inductor 103, ensuring that the zero-sequence detection covers all phase lines and neutral lines to avoid leakage. The zero-sequence transformer 102 is used to detect leakage current / residual current, which is the core of realizing leakage protection function, and the real-time monitoring of each phase current through multiple current transformers 103 is the core of realizing phase current monitoring and overload protection. The main controller 101 processes the signals from the zero-sequence transformer 102 and the current transformer 103 in real time. When the protection algorithm detects that the line has leakage or overload fault, it can instantaneously control the action of the drive mechanism 2, thereby driving the contact linkage 3 to control multiple groups of moving and static contacts to disconnect contact, so as to realize leakage protection or overload protection function. This design enables the charging module to form a complete closed loop of safety detection-fast on-off-intelligent control, which is in line with the development trend of efficient, reliable and easy-to-maintain new energy charging equipment.

[0039] The main controller 101 is vertically installed in the side cavity 14 through the plug-in slot 16. A through slot 15 is provided between the main cavity 13 and the side cavity 14. The core function of the through slot 15 is to provide the drive mechanism control line, mutual inductor signal line, terminal monitoring line, etc. in the main cavity 13 with the main control board in the side cavity 14 with the shortest and most direct physical connection channel, so that the wires are connected to the main controller 101 through the through slot 15, reducing the confusion of the wiring harness, making the wiring neat and orderly, and facilitating production and maintenance.

[0040] The following combination Figure 3-Figure 6 The specific setting method of the driving mechanism 2 is described in detail:

[0041] The driving mechanism 2 includes a driving coil 21 vertically installed in the shell structure 1, and a moving iron core 22 and a static iron core 23 relatively arranged at both ends of the driving coil 21. The moving iron core 22 and the static iron core 23 are respectively E-type structures, and a reaction spring 8 is provided between the moving iron core 22 and the static iron core 23. The middle protrusions of the moving iron core 22 and the static iron core 23 are connected to the middle cavity of the driving coil 21. The driving coil 21 is electrically connected to the main controller 101. The contact linkage 3 is rotatably arranged in the shell structure 1 through a swing arm assembly, and extends to be vertically cross-connected with the moving iron core 22. The moving iron core 22 reciprocates along the axial direction of the driving coil 21 under the action of the electromagnetic force generated by the driving coil 21, and drives the contact linkage 3 to swing. A group of reaction springs 8 are provided between the top of the driving coil 21 and the contact linkage 3. The function of the reaction springs 8 is to reset the driving linkage rod and the moving iron core 22 after the driving coil 21 is powered off. That is, after the driving coil 21 is powered off, the contact linkage 3 resets and rotates under the action of the reaction springs 8, and drives multiple groups of moving contacts 4 to separate from the static contacts 5, thereby disconnecting multiple control circuits. This structural setting is that the driving mechanism 2 adopts a vertically arranged driving coil and upper and static iron core structures, and the coupling linkage mechanism adopts a contact linkage 3 arranged horizontally above the driving coil 21. The contact linkage 3 and the moving iron core 22 are cross-arranged. When the moving iron core 22 is driven by electromagnetic force to move rapidly along the axial direction of the driving coil 21, it will drive the contact linkage 3 to swing a certain angle, thereby controlling the on and off of multiple groups of moving contacts 4 and multiple groups of static contacts 5 to achieve multi-circuit on-off control. This design replaces the combination of multiple groups of independent relays in the traditional solution, significantly reducing the installation space, reducing costs and assembly complexity. The integrated AC charging module is designed with an integrated and leveraged architecture of a single driving mechanism, contact linkage and multiple contact groups, which is conducive to achieving high integration and miniaturization of the product. It is suitable for scenarios with high requirements on space, cost and reliability, such as new energy charging piles.

[0042] The following combination Figure 3-Figure 6 The specific setting method of the coupling linkage mechanism is described in detail:

[0043] The two lower swing arms 6 are integrally connected to the bottom of the contact linkage 3 in an L-shaped structure, and the two side walls of the mounting boss 7 are provided with two rotation holes 71. The two lower swing arms 6 are provided with a rotation shaft 61 connected to the rotation hole 71 at one end of the two lower swing arms 6 away from the contact linkage 3. In this structural setting, the two lower swing arms 6 are connected to the rotating holes 71 on both sides of the mounting boss 7 through the rotating shaft 61, thereby forming a symmetrical rotating fulcrum. This double-swing arm structural layout makes the contact linkage 3 completely symmetrical in force when swinging, can evenly share the unbalanced force, prevent the contact linkage 3 from twisting, and ensure that the pressure of all contacts remains balanced; and this contact linkage 3 is rotatably connected to the mounting boss 7 through the lower swing arm 6 to form a lever structure. When the electromagnetic force generated by the drive coil 21 attracts the moving iron core 22 to move, the lower swing arm 6 rotates with the rotating hole of the mounting boss 7 as the fulcrum, and converts the vertical electromagnetic force into a horizontal swinging force of the contact linkage 3. By amplifying the electromagnetic driving force, the moving contact obtains a greater positive pressure when contacting the static contact, thereby improving contact reliability, reducing contact resistance, and helping to increase the contact opening distance and improve the product's breaking capacity.

[0044] like Figure 6 As shown, the middle part of the contact linkage 3 is provided with a clearance groove 35 for the moving iron core 22 to pass through, and the middle part of the moving iron core 22 is penetrated by a connecting shaft 31 connected to the contact linkage 3. The contact linkage 3 is provided with a strip-shaped guide hole 32 extending along its length direction for the connecting shaft 31 to pass through. With this structural arrangement, the moving iron core 22 directly passes through the clearance groove 35 in the middle of the contact linkage 3, and the two form a three-dimensional cross structure. When the moving iron core 22 moves, the contact linkage 3 is moved by the swing arm The component swings, and during the swinging process of the contact linkage 3, the connecting shaft 31 can slide in the strip guide hole 32 of the contact linkage 3, compensating for the displacement deviation caused by the difference in the movement directions of the two, and avoiding structural jamming caused by movement interference, thereby providing follow-up adjustment space for the connecting shaft 31 through the strip guide hole 32, ensuring the transmission reliability between the moving iron core 22 and the contact linkage 3, and making the driving force of the moving iron core 22 more evenly transmitted to the moving contact 4 on the contact linkage 3, thereby improving the contact reliability of the contact.

[0045] It is further preferred that a plurality of contact holes 33 for mounting a plurality of moving contacts 4 are provided at intervals on the contact linkage 3, and a contact compression spring 34 elastically connected to the moving contact 4 is provided in the contact hole 33. It is further preferred that two contact mounting portions are symmetrically provided at the bottom of the contact linkage 3, and a plurality of contact holes 33 are respectively spaced apart on the two contact mounting portions. One end of the moving contact 4 extends out of the contact hole 33 and is connected to the first terminal 11 through a soft wire, and the other end extends out of the contact hole 33 and is arranged opposite to the static contact 5. The housing structure 1 includes a plurality of isolation grooves spaced apart on both sides of the mounting boss 7. A plurality of static contacts 5 are installed in the plurality of isolation grooves to cooperate with the plurality of moving contacts 4, and the plurality of isolation grooves are used to connect the adjacent A strong insulation barrier is formed between the phase contacts to prevent inter-phase arc flashover, increase the phase-to-phase creepage distance, and ensure the safe electrical distance between phases. The contact linkage 3 designed using this technical solution can flexibly increase or decrease the number of moving contacts 4 to meet the requirements of different power line configurations. An elastic preload is formed between the moving contact 4 and the contact hole 33 through the contact compression spring 34, which plays a role in contact wear compensation, anti-vibration and anti-jump, and balanced multi-contact pressure. Therefore, when the contact linkage 3 is driven to rotate to drive the moving contact 4 to contact the static contact 5, the contact compression spring 34 can absorb the impact of movement and evenly transfer the pressure to the surface of the moving contact through its own elastic deformation. At the same time, combined with the symmetrical layout of the double contact mounting part, the consistency and stability of the contact of multiple groups of contacts can be improved.

[0046] Combine Figure 1-Figure 2 As shown, the shell structure 1 is provided with a plurality of terminal slots for mounting and accommodating the first terminal 11 and the second terminal 12 at both ends, and a shell cover 10 is provided on the top of the shell structure 1. The shell cover 10 is provided with a plurality of operation holes corresponding to the plurality of terminal slots at both ends of the shell structure 1, and two wiring covers 9 covering the plurality of operation holes are provided at both ends of the shell structure 1, and one end of the wiring cover is provided with a threading sleeve. This structural setting is connected to the shell structure 1 through the wiring cover 9, and a protective cavity is formed between the two. It can cover the terminal installation area at both ends of the shell, effectively blocking dust, metal debris and other impurities from entering the terminal slot, which not only plays the role of isolating foreign matter, but also plays the role of preventing misoperation of the terminals. The wiring cover is designed to be detachable, supporting the assembly process of wiring first and then covering the cover. By designing the threading port to provide a unified entrance for the wires, the wiring operation is more orderly, avoiding the entanglement and extrusion problems caused by the random insertion of the wires, thereby standardizing the wiring management and improving the assembly efficiency.

[0047] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An integrated AC charging module for a charging pile system, characterized in that: include: The housing structure (1) comprises a main cavity (13) and a side cavity (14) connected in one piece; two ends of the main cavity (13) are respectively provided with a plurality of groups of first terminals (11) and a plurality of groups of second terminals (12); A contact system comprises a driving mechanism (2) and a coupling linkage mechanism arranged in the main cavity (13); the coupling linkage mechanism comprises a contact linkage member (3) connected to the driving mechanism (2), and a plurality of groups of moving contacts (4) arranged on the contact linkage member (3) and connected to a plurality of groups of first terminals (11), and a plurality of groups of stationary contacts (5) connected to a plurality of groups of second terminals (12); the contact linkage member (3) is driven by the driving mechanism (2) to rotate and drive the plurality of groups of moving contacts (4) to engage or separate with the plurality of groups of stationary contacts (5); A main controller (101) is detachably arranged in the side cavity (14) via a plug-in structure. The main controller (101) is connected to the drive mechanism (2) and is used to control the start and stop actions of the drive mechanism (2).

2. The integrated AC charging module according to claim 1, characterized in that: The plug-in structure comprises at least one group of plug-in slots (16) arranged relatively on the inner walls of both ends of the side cavity (14); the main controller (101) comprises at least one control board, both ends of which are inserted into the group of plug-in slots (16) and arranged in an upright position in the side cavity (14).

3. The integrated AC charging module according to claim 2, characterized in that: The housing structure (1) is provided with a zero-sequence mutual inductor (102) and a plurality of current mutual inductors (103) located on one side of the plurality of first terminals (11); the plurality of first terminals (11) and the plurality of moving contacts (4) are connected via a plurality of flexible conductors; the plurality of flexible conductors collectively pass through the zero-sequence mutual inductor (102) and then pass through the plurality of current mutual inductors (103) respectively; the zero-sequence mutual inductor and the current mutual inductor (103) are respectively electrically connected to the main controller (101).

4. The integrated AC charging module according to claim 3, characterized in that: A through slot (15) is provided between the main cavity (13) and the side cavity (14).

5. The integrated AC charging module according to any one of claims 1 to 4, characterized in that: The driving mechanism (2) comprises a driving coil (21) vertically mounted in a housing structure (1), and a moving iron core (22) and a stationary iron core (23) relatively arranged at both ends of the driving coil (21); the driving coil (21) is electrically connected to the main controller (101); the contact linkage (3) is rotatably arranged in the housing structure (1) through a swing arm assembly, and extends to be vertically cross-connected with the moving iron core (22); and a group of reaction springs (8) is provided between the top of the driving coil (21) and the contact linkage (3).

6. The integrated AC charging module according to claim 5, characterized in that: A mounting boss (7) is provided in the housing structure (1) around the drive mechanism (2); the contact linkage (3) extends along the width direction of the housing structure (1) and is located on the upper side of the drive mechanism (2); the swing arm assembly comprises two lower swing arms (6) relatively arranged at the bottom of the contact linkage (3); one end of the two lower swing arms (6) extending in the same direction is rotatably connected to the side walls of both sides of the mounting boss (7).

7. The integrated AC charging module according to claim 6, characterized in that: The two lower swing arms (6) are integrally connected to the bottom of the contact linkage member (3) in an L-shaped structure, and two rotating holes (71) are provided on the side walls of the mounting boss (7). The ends of the two lower swing arms (6) away from the contact linkage member (3) are provided with rotating shafts (61) connected to the rotating holes (71).

8. The integrated AC charging module according to claim 7, characterized in that: The middle of the contact linkage member (3) is provided with a clearance groove (35) for the movable iron core (22) to pass through, the middle of the movable iron core (22) is penetrated by a connecting shaft (31) connected to the contact linkage member (3), and the contact linkage member (3) is provided with a strip-shaped guide hole (32) extending along its length direction for the connecting shaft (31) to pass through.

9. The integrated AC charging module according to claim 8, characterized in that: The contact linkage member (3) is provided with a plurality of contact holes (33) for installing a plurality of moving contacts (4) at intervals, and a contact compression spring (34) elastically connected to the moving contact (4) is provided in the contact hole (33); one end of the moving contact (4) extends out of the contact hole (33) and is connected to the first terminal (11) through a soft wire, and the other end extends out of the contact hole (33) and is arranged opposite to the static contact (5); the housing structure (1) includes a plurality of isolation grooves arranged at intervals on both sides of the mounting boss (7), and the plurality of static contacts (5) are installed in the plurality of isolation grooves to cooperate with the plurality of moving contacts (4).

10. The integrated AC charging module according to any one of claims 6 to 9, characterized in that: A shell cover (10) is provided on the top of the shell structure (1), and the shell cover (10) is provided with a plurality of operating holes corresponding to the plurality of terminal slots at both ends of the shell structure (1), and two wiring covers (9) covering the plurality of operating holes are provided at both ends of the shell structure (1), and one end of the wiring cover is provided with a wire threading port.

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