Electric vehicle charging station power supply module

Abstract

The utility model relates to a power supply module of an electric automobile charging station. The power supply module comprises a power supply base and a contactor arranged on the power supply base. According to the utility model, the plugging copper columns on the contactor are plugged on the riveting copper columns and the conductive columns, so that the connection and disconnection of a circuit are realized, and the inlet wire connecting plate and the outlet wire connecting plate are obviously separated from each other up and down in the module, thereby not only facilitating the space layout and heat dissipation in the module, but also improving the isolation between electrical elements, and improving the reliability of the module. Electromagnetic interference and short circuit risks are reduced, the incoming line connecting plate is mainly responsible for receiving external power input, the outgoing line connecting plate is responsible for transmitting processed current to a load outside the module, and the riveting copper column is fixed between the outgoing line connecting plate and the power base in a riveting mode, so that the installation process is simplified, and the installation efficiency is improved. Tediousness and inconvenience caused by traditional welding or bolt connection are avoided, all the assemblies can be independently disassembled and replaced through the modular design, and the maintenance cost and time are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging technology, and in particular to a power supply module for an electric vehicle charging station. Background Technology

[0002] With the rapid development of the electric vehicle industry, the construction and operation of electric vehicle charging stations have become increasingly important. Power modules in charging stations, as key components, directly affect charging efficiency, safety, and reliability. However, existing electric vehicle charging station power modules have some shortcomings in design and structure. They present certain difficulties in installation and maintenance; for example, disassembling and replacing parts requires significant time and effort, hindering rapid response and troubleshooting. Furthermore, with the continuous advancement of electric vehicle technology, the requirements for charging station power modules are becoming increasingly stringent. Higher power density and charging efficiency are needed to shorten charging time and improve user experience; more reliable safety protection measures are required to prevent electrical fires and electric shocks; and more flexible installation and expansion methods are needed to adapt to the needs of charging stations of different sizes and types. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an electric vehicle charging station power module with stable and reliable electrical connection, simple and quick installation and maintenance, and easy expansion.

[0004] To achieve the above objectives, this utility model employs an electric vehicle charging station power module, including a power base and a contactor mounted on the power base. A lower mounting plate is provided on the power base, and a cable outlet connecting plate is provided between the lower mounting plate and the power base. The cable outlet connecting plate has riveted copper pillars, each containing a copper pillar crown spring. The lower mounting plate has corresponding sleeves at the positions of the riveted copper pillars on the cable outlet connecting plate. An upper mounting plate is also provided on the lower mounting plate, and an inlet connecting plate is provided between the upper and lower mounting plates. The inlet connecting plate corresponds to the sleeves... The device has a sleeve mounting groove for mounting the outer wall of the sleeve, and an integrally formed conductive post on one side of the sleeve mounting groove. The conductive post contains a conductive post crown spring. The upper mounting plate has an opening groove corresponding to the extension of the sleeve. The upper mounting plate also has an insulating boss at the position of the conductive post corresponding to the inlet connection plate. The outlet connection plate has a riveting hole at the position of the riveting copper post. The riveting copper post is fixed in the riveting hole by riveting and extends to the space between the outlet connection plate and the power base. The contactor has a plug-in copper post that matches the riveting copper post and the conductive post.

[0005] The advantages of the above structure are as follows: the contactor's plug-in copper post connects to the riveted copper post and conductive post, thereby realizing the closure and opening of the circuit. The input connection plate and output connection plate in the module have a clear upper and lower spacing, which not only helps the internal space layout and heat dissipation of the module, but also improves the isolation between electrical components, reduces electromagnetic interference and short circuit risk. The input connection plate is mainly responsible for receiving external power input, while the output connection plate is responsible for transmitting the processed current to the load outside the module. The riveted copper post is fixed between the output connection plate and the power base by riveting, which simplifies the installation process and avoids the cumbersome and inconvenient traditional welding or bolt connection. The modular design allows each component to be disassembled and replaced independently, reducing maintenance costs and time. The introduction of the control board enables the power module to have intelligent control functions.

[0006] This utility model further comprises a first outgoing terminal block movably connected to one end of the power supply base, the first outgoing terminal block having at least one set of outgoing ports, and a first incoming terminal block movably connected to one side of the power supply base, the first incoming terminal block having at least one set of incoming ports corresponding to the outgoing ports. By designing both the first outgoing terminal block and the first incoming terminal block as movably connected, the power module can be more conveniently connected to external devices in practical applications. When the terminal blocks need to be inspected, replaced, or repaired, the connection can be simply disconnected without disassembling the entire power module, thus greatly reducing maintenance costs and time.

[0007] This invention further configures each set of outgoing ports to include one positive output port and one negative output port, and each set of incoming ports to include a corresponding positive input port and a negative input port. By setting positive and negative ports for the outgoing and incoming ports respectively, the correct transmission and reception of electrical energy is ensured. This design not only simplifies the process of power transmission but also improves the accuracy and security of transmission. Even in the case of multiple sets of incoming ports, it can effectively avoid power transmission errors or malfunctions caused by port mismatch.

[0008] This utility model further comprises a second outgoing terminal block corresponding to the first outgoing terminal block integrally formed at one end of the power base, and a second incoming terminal block corresponding to the first incoming terminal block integrally formed on the other side of the power base. The outgoing connection plate is electrically connected to the power base and extends to the first outgoing terminal block and the second outgoing terminal block respectively. The incoming connection plate is electrically connected to the lower mounting plate and extends to the first incoming terminal block and the second incoming terminal block respectively. The first outgoing terminal block and the second outgoing terminal block, as well as the first incoming terminal block and the second incoming terminal block, are respectively provided with outgoing terminal covers and incoming terminal covers. By integrally forming the second outgoing terminal block and the second incoming terminal block on the power base, the structure of the entire power module is more compact and integrated, which helps to reduce the space occupied. The outgoing connection plate and the incoming connection plate extend to the first and second outgoing terminal blocks and the first and second incoming terminal blocks respectively, ensuring the stability and reliability of the electrical connection. The outgoing terminal cover and the incoming terminal cover provide an additional safety protection layer.

[0009] This invention further features an integrally formed plug-in housing on one side of the upper mounting plate, into which a control board is inserted. The control board extends outward through a plug-in slot in the plug-in housing and has a power plug-in port. The plug-in housing is covered with a plug-in cover. By inserting the control board into the plug-in housing and extending the power plug-in port outward through the plug-in slot, the overall structure of the device is more compact. The integral molding of the plug-in housing and the upper mounting plate also enhances the overall integrity and stability of the device, while improving integration and reducing the size and weight of the device.

[0010] This invention further features a power supply base with splicing slots on one end of the second outgoing terminal block and one side of the second incoming terminal block. The control board has at least one module plug-in port for each power supply base connected via splicing, used for electrical connection. The plug-in cover has port slots corresponding to the module plug-in ports and power supply plug-in ports. The plug-in cover also has a connector, which houses a connector that plugs into the control board. By providing splicing slots on the power supply base, the splicing and expansion of power supply modules can be easily achieved, allowing for flexible increases or decreases in the number of power supply modules according to actual needs, thereby meeting different power and current requirements.

[0011] This invention further features a hook on the outer wall of the contactor, and a limiting block on the upper mounting plate corresponding to the hook on the contactor. The contactor has a circuit board at one end corresponding to the control board, and the circuit board has pins that are connected to the control board via connectors. By cooperating with the limiting block on the upper mounting plate, the contactor can be quickly installed and securely fixed, simplifying the installation process, reducing installation difficulty, improving installation accuracy and stability, and ensuring the stability and reliability of the contactor during operation.

[0012] This utility model further comprises an inlet connection plate with a first wiring screw at the corresponding position of the first inlet terminal block and the second inlet terminal block. The inlet connection plate has a first guide slope that contacts the first inlet terminal block. The bottom of the inlet connection plate maintains planar contact with the second inlet terminal block and the lower mounting plate. The use of the first wiring screws simplifies and stabilizes the connection between the inlet connection plate and the first and second inlet terminal blocks. The first guide slope on the inlet connection plate guides the connection, making it easier for the first inlet terminal block to align and contact with the inlet connection plate, reducing alignment difficulty during installation and improving installation accuracy and efficiency. The planar contact between the bottom of the inlet connection plate and the second inlet terminal block and the lower mounting plate not only enhances the stability of the connection but also improves heat dissipation.

[0013] This utility model further features a second wiring screw on the cable connection plate at the corresponding positions of the first and second cable outlet terminals. The cable connection plate has a second guide slope that contacts the first cable outlet terminal. The bottom of the cable connection plate maintains planar contact with the second cable outlet terminal and the power supply base. The second wiring screw simplifies and simplifies the connection between the cable connection plate and the first and second cable outlet terminals. The second guide slope on the cable connection plate guides and aligns the connection, ensuring accurate alignment when the first cable outlet terminal contacts the cable connection plate, reducing errors and difficulties during installation. The planar contact between the bottom of the cable connection plate and the second cable outlet terminal and the power supply base not only facilitates heat conduction and dissipation, improving heat dissipation performance, but also enhances electrical conductivity.

[0014] This utility model is further configured such that the upper mounting plate, the lower mounting plate, and the power base are connected by a first mounting screw; the first and second outgoing terminal blocks are both movably connected to the outgoing terminal cover by a first snap-fit; the first outgoing terminal block is movably connected to the power base by a second snap-fit; the first and second incoming terminal blocks are both connected to the incoming terminal cover by a second mounting screw; and the first incoming terminal block is connected to the power base by a third snap-fit. By using the first mounting screw to connect the upper mounting plate, the lower mounting plate, and the power base, the stability and reliability of the entire structure are ensured. The design of the first and second snap-fits makes the connection between the outgoing terminal blocks and the power base more flexible and convenient. The use of the second mounting screw ensures that the electrical connection between the incoming terminal blocks and the incoming terminal cover is stable and reliable. The third snap-fit ​​connection between the first incoming terminal blocks and the power base ensures the tightness and stability of the electrical connection. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of an embodiment of this utility model.

[0016] Figure 2 This is an exploded view of the internal mounting structure of the power supply base according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the contactor structure according to an embodiment of the present utility model.

[0018] Figure 4 This is an exploded view of the power base structure according to an embodiment of the present invention.

[0019] Figure 5 This is an exploded view of the upper mounting plate structure according to an embodiment of the present invention.

[0020] Figure 6 This is a structural schematic diagram of the lower mounting plate and the incoming line connection plate according to an embodiment of the present utility model.

[0021] Figure 7 This is a structural schematic diagram of the power base and the cable connection plate of this utility model embodiment.

[0022] Figure 8 This is a top view of an embodiment of the present invention without a contactor.

[0023] Figure 9 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0024] Figure 10 This is an exploded view of the insertion structure of the first outgoing terminal block according to an embodiment of the present utility model.

[0025] Figure 11This is an exploded view of the insertion structure of the first incoming terminal block according to an embodiment of the present invention.

[0026] Figure 12 This is a schematic diagram of the four-module splicing state according to an embodiment of the present invention.

[0027] Figure 13 This is a schematic diagram of the six-module splicing state according to an embodiment of the present invention. Detailed Implementation

[0028] like Figures 1-13 As shown, Embodiment 1 of this utility model provides a power module for an electric vehicle charging station, including a power base 1 and a contactor 6 mounted on the power base 1. A lower mounting plate 2 is mounted on the power base 1, and two parallel cable connection plates 3 are arranged between the lower mounting plate 2 and the power base 1. Each cable connection plate 3 has four spaced-apart riveted copper posts 31, and the riveted copper posts 31 on the two cable connection plates 3 are arranged in an alternating pattern. Each riveted copper post 31 contains a copper post crown spring 32 for lifting... For electrical connection, the lower mounting plate 2 has sleeves 21 at the positions of the riveted copper posts 31 on each outgoing connection plate 3. Each sleeve 21 corresponds to a riveted copper post 31, and its inner diameter is slightly larger than the outer diameter of the riveted copper post 31 to facilitate easy insertion and fixation of the riveted copper post 31. The lower mounting plate 2 is also covered by an upper mounting plate 4. Eight inlet connection plates 5 are provided between the upper mounting plate 4 and the lower mounting plate 2. Each inlet connection plate 5 has a sleeve platform 51 corresponding to a sleeve 21. The inner wall of the sleeve platform 51 is flush with the outer wall of the sleeve 21. To ensure stable installation and electrical connection, a one-piece conductive post 52 is provided on one side of the sleeve platform 51. A conductive post crown spring 53 is installed inside the conductive post 52. The upper mounting plate 4 has openings 49 corresponding to the extension portion of each sleeve 21. These openings 49 allow at least a portion of the extension portion of the sleeve 21 and the riveted copper post 31 enclosed by the sleeve 21 to be exposed above the upper mounting plate 4. The upper mounting plate 4 also has insulating bosses 40 at the positions of the conductive posts 52 corresponding to each inlet connection plate 5. The insulating boss 40 is used to accommodate and support the conductive post 52 extending from the inlet connection plate 5, while providing electrical insulation to prevent electrical short circuits between the conductive posts 52 or with other components. The outlet connection plate 3 has a riveting hole 35 at the position corresponding to the riveting copper post 31. The riveting copper post 31 is fixed in the riveting hole 35 by riveting and extends to the space between the outlet connection plate 3 and the power base 1. The contactor 6 is provided with a plug-in copper post 61 that matches the riveting copper post 31 and the conductive post 52 for realizing electrical connection and signal transmission.

[0029] One end of the power base 1 is movably connected to a first output terminal block 7, which has a set of output ports, including a positive output port 71 and a negative output port 72. One side of the power base 1 is movably connected to a first input terminal block 8, which has four sets of input ports corresponding to the output ports. The four sets of input ports each have a corresponding positive input port 81 and a negative input port 82. The other end of the power base 1 is integrally formed with a second output terminal block 11 corresponding to the first output terminal block 7, and the other side of the power base 1 is integrally formed with a second input terminal block 12 corresponding to the first input terminal block 8.

[0030] Eight incoming line connection plates 5 are electrically connected to the lower mounting plate 2, arranged sequentially from left to right, and extend to the adjacent first incoming line terminal block 8 and second incoming line terminal block 12 respectively. At the position corresponding to the first incoming line terminal block 8, each incoming line connection plate 5 is provided with a first wiring screw 54, and is connected to the corresponding wiring lug 60 provided on the first incoming line terminal block 8 through the first wiring screw 54. Each incoming line connection plate 5 is also provided with a first guide slope 55 to facilitate accurate docking with the first incoming line terminal block 8. The bottom of the eight incoming line connection plates 5 maintains planar contact with the second incoming line terminal block 12 and the lower mounting plate 2. The second incoming line terminal block 12 is also provided with a first wiring screw 54 for subsequent expansion connection.

[0031] Two cable connection plates 3 are electrically connected to the power base 1, distributed front and back, and extend to the adjacent first cable terminal block 7 and second cable terminal block 11 respectively. At the position corresponding to the first cable terminal block 7, each cable connection plate 3 is provided with a second wiring screw 33, and is connected to the corresponding wiring lug 60 provided on the first cable terminal block 7 through the second wiring screw 33. Each cable connection plate 3 is also provided with a first guide slope 34 to facilitate accurate docking with the first cable terminal block 7. The bottom of the two cable connection plates 3 maintains planar contact with the second cable terminal block 11 and the power base 1. The second cable terminal block 11 is also provided with a second wiring screw 33 for subsequent expansion connection.

[0032] One side of the upper mounting plate 4 is integrally formed with a plug-in shell 41. A control board 42 is inserted into the plug-in shell 41. The control board 42 extends outward through the plug-in slot opened in the plug-in shell 41 and is provided with a power plug-in port 43. The plug-in shell 41 is covered with a plug-in cover 44. The power base 1 is provided with splicing slots 13 at one end corresponding to the second outgoing terminal block 11 and one side of the second incoming terminal block 12. The control board 42 is provided with a module plug-in port 45 corresponding to each power base connected by splicing for electrical connection. The plug-in cover 44 is provided with port slots 46 corresponding to the two module plug-in ports 45 and one power plug-in port 43. The plug-in cover 44 is also provided with a plug interface. The plug interface is provided with a plug-in component 47 that is plugged into the control board 42. The first outgoing terminal block 7 and the first incoming terminal block 8 are movably connected and can also be disassembled to splice with the power base.

[0033] The outer wall of the contactor 6 is also provided with a hook 62. The upper mounting plate 4 is provided with a limit block 48 corresponding to the hook 62 provided on the contactor 6. The contactor 6 is provided with a circuit board at one end of the corresponding control plate 42. The circuit board is provided with a pin 63. The pin 63 is connected to the control plate 42 through a connector 47.

[0034] The first outgoing terminal block 7 and the second outgoing terminal block 11, as well as the first incoming terminal block 8 and the second incoming terminal block 12, are respectively provided with an outgoing terminal cover 9 and an incoming terminal cover 10. The upper mounting plate 4, the lower mounting plate 2, and the power base 1 are connected by a first mounting screw 20. The first outgoing terminal block 7 and the second outgoing terminal block 11 are movably connected to the outgoing terminal cover 9 by a first snap-fit ​​30. The first outgoing terminal block 7 is movably connected to the power base 1 by a second snap-fit ​​50. The first incoming terminal block 8 and the second incoming terminal block 12 are connected to the incoming terminal cover 10 by a second mounting screw 70. The first incoming terminal block 8 is connected to the power base 1 by a third snap-fit ​​80.

[0035] When the power base 1 is spliced ​​at one end of the corresponding second outgoing terminal block 11, the outgoing terminal block inside the spliced ​​power base will be connected to the two outgoing connecting plates 3 on the original second outgoing terminal block 11 inside the power base 1 through an additional connecting plate. These two connecting plates are respectively installed under the second wiring screw 33 to ensure the continuity of electrical connection. Similarly, when the power base 1 is spliced ​​on one side of the corresponding second incoming terminal block 12, the incoming terminal block inside the spliced ​​power base will be connected to the eight incoming connecting plates 5 on the original second incoming terminal block 12 inside the power base 1 through an additional connecting plate. These eight connecting plates are also respectively installed under the first wiring screw 54 to maintain the integrity of electrical connection. Whether the power base is spliced ​​on the second outgoing terminal block 11 or the second incoming terminal block 12, its structure and function after splicing are similar.

[0036] The above is a specific embodiment of the present utility model. In addition, besides the solution of embodiment one, the present utility model also includes another specific embodiment, as follows:

[0037] This utility model provides a second embodiment of a power module for an electric vehicle charging station. The overall structure of this power module is similar to that of the first embodiment, but the main difference lies in the number of input ports on the first input terminal block 8 and its corresponding second input terminal block 12, as well as the adjustment of the contactor 6 configuration. In this embodiment, to meet more diverse charging needs, two sets of input ports are added to both the first and second input terminal blocks, increasing the total number of input ports on each terminal block from four to six. Each set of input ports includes one positive input port 81 and one negative input port 82. Therefore, the entire power module has a total of 12 input ports. Furthermore, with the increase in the number of input ports, the contactor configuration is adjusted accordingly to ensure that each newly added input port receives appropriate electrical control and protection. Apart from the changes in the number of input ports and the contactor 6 configuration mentioned above, the other structures, connection methods, and functions in this embodiment are consistent with those in the first embodiment. Therefore, this embodiment, while maintaining the original design advantages, further enhances the flexibility and adaptability of the power module to meet more diverse electric vehicle charging needs.

[0038] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A power supply module for an electric vehicle charging station, characterized in that: The system includes a power base and a contactor mounted on the power base. A lower mounting plate is provided on the power base, and a cable outlet connecting plate is located between the lower mounting plate and the power base. The cable outlet connecting plate has riveted copper posts, each containing a copper post crown spring. The lower mounting plate has corresponding sleeves at the positions of the riveted copper posts on the cable outlet connecting plate. An upper mounting plate is also provided on the lower mounting plate. An inlet connecting plate is located between the upper and lower mounting plates, and the inlet connecting plate has sleeves at the positions corresponding to the sleeves for securing the outer wall of the sleeves. The mounting slot has an integrally formed conductive post on one side of the sleeve mounting slot. The conductive post contains a conductive post crown spring. The upper mounting plate has an opening slot for the extension portion corresponding to the sleeve. The upper mounting plate also has an insulating boss at the position of the conductive post corresponding to the inlet connection plate. The outlet connection plate has a riveting hole at the position of the riveting copper post. The riveting copper post is fixed in the riveting hole by riveting and extends to the space between the outlet connection plate and the power base. The contactor has a plug-in copper post that matches the riveting copper post and the conductive post.

2. The power supply module for an electric vehicle charging station according to claim 1, characterized in that: One end of the power base is movably connected to a first outgoing terminal block, which has at least one set of outgoing ports. The other side of the power base is movably connected to a first incoming terminal block, which has at least one set of incoming ports corresponding to the outgoing ports.

3. The electric vehicle charging station power module according to claim 2, characterized in that: Each set of outgoing ports includes a positive output port and a negative output port, and each set of incoming ports includes a corresponding positive input port and a negative input port.

4. The power supply module for an electric vehicle charging station according to claim 3, characterized in that: The other end of the power base is integrally formed with a second outgoing terminal block corresponding to the first outgoing terminal block, and the other side of the power base is integrally formed with a second incoming terminal block corresponding to the first incoming terminal block. The outgoing connection plate is electrically connected to the power base and extends to the first outgoing terminal block and the second outgoing terminal block respectively. The incoming connection plate is electrically connected to the lower mounting plate and extends to the first incoming terminal block and the second incoming terminal block respectively. The first outgoing terminal block and the second outgoing terminal block, as well as the first incoming terminal block and the second incoming terminal block, are respectively provided with an outgoing terminal cover and an incoming terminal cover.

5. The electric vehicle charging station power module according to claim 1, 2, 3, or 4, characterized in that: One side of the upper mounting plate is integrally formed with a plug-in shell, and a control board is inserted into the plug-in shell. The control board extends outward through the plug-in slot opened in the plug-in shell and is provided with a power plug-in port. The plug-in shell is covered with a plug-in cover.

6. The power supply module for an electric vehicle charging station according to claim 5, characterized in that: The power base has splicing slots at one end of the second outgoing terminal block and on one side of the second incoming terminal block. The control board has at least one module plug-in port for each power base connected by splicing, for electrical connection. The plug-in cover has port slots corresponding to the module plug-in port and the power plug-in port. The plug-in cover also has a plug interface, which contains a plug-in component that is plugged into the control board.

7. The power supply module for an electric vehicle charging station according to claim 6, characterized in that: The contactor is also provided with a hook on its outer wall, and a limit block is provided on the upper mounting plate corresponding to the hook on the contactor. The contactor is provided with a circuit board at one end of the corresponding control board, and a pin is provided on the circuit board. The pin is connected to the control board through a connector.

8. The power supply module for an electric vehicle charging station according to claim 7, characterized in that: The incoming line connection plate is provided with a first wiring screw at the position corresponding to the first incoming line terminal block and the second incoming line terminal block. The incoming line connection plate is provided with a first guide slope that contacts the first incoming line terminal block. The bottom of the incoming line connection plate maintains planar contact with the second incoming line terminal block and the lower mounting plate.

9. The power supply module for an electric vehicle charging station according to claim 8, characterized in that: The cable connection plate is provided with a second wiring screw at the position corresponding to the first cable terminal block and the second cable terminal block. The cable connection plate is provided with a second guide slope that contacts the first cable terminal block. The bottom of the cable connection plate is in planar contact with the second cable terminal block and the power base.

10. The power supply module for an electric vehicle charging station according to claim 9, characterized in that: The upper mounting plate, the lower mounting plate, and the power base are connected by a first mounting screw. The first and second outgoing terminal blocks and the outgoing terminal cover are both movably connected by a first snap-fit. The first outgoing terminal block and the power base are movably connected by a second snap-fit. The first and second incoming terminal blocks and the incoming terminal cover are both connected by a second mounting screw. The first incoming terminal block and the power base are connected by a third snap-fit.

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