Power supply connector

Abstract

The invention relates to a power connector which comprises a socket assembly and a plug assembly. The socket assembly comprises a first base; a plurality of conductive pin cylinders are arranged on the first base; a first electrical partition plate is arranged between every two adjacent conductive pin cylinders. The plug assembly comprises a second base; a plurality of conductive pins are arranged on the second base; a second electrical partition plate is arranged between every two adjacent contact pins; the power connector is ingenious in design, the first electrical partition plate is arranged between the two adjacent conductive pin cylinders, the second electrical partition plate is arranged between the two adjacent conductive pins, the first electrical partition plate and the second electrical partition plate both have the function of blocking electricity, and the electricity can only move around the electrical partition plates, so that the power connector is convenient to use. Therefore, the creepage distance between two adjacent conductive pin cylinders and the creepage distance between two adjacent conductive pins are increased. And the voltage resistance of the plug assembly and the socket assembly is improved, so that the potential safety hazard in the use process of the power supply connector is reduced.

Description

Technical Field

[0001] The present invention relates to a power connector. Background Art

[0002] With the rapid development of new energy vehicles, the demand for high-power module power connectors in charging piles has increased sharply. Currently, 15KW and 20KW module power connectors still dominate the market. However, with the market and consumers' eagerness to shorten the charging time, fast charging has become a major development direction for new energy vehicles in the future. Fast charging requires increasing the charging power. To save costs, the capacity of the charging module will increase accordingly, and the current-carrying capacity will also increase. However, the existing power connectors have some technical defects: the electrical clearance between adjacent two pins or adjacent two jacks is small, and the short straight-line distance results in insufficient creepage distance, which is likely to cause an increase in contact resistance and partial discharge under high current, and the withstand voltage performance is insufficient.

[0003] In the prior art, the withstand voltage performance is improved by increasing the size of the connector, but this will lead to a bulky volume and an increase in cost. Therefore, there is an urgent need for a high-power power connector that can both improve the withstand voltage and maintain a compact structure. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a power connector in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a power connector, which includes a socket assembly and a plug assembly; the socket assembly includes a first base; a plurality of first through holes are provided on the first base; a conductive pin barrel is arranged in the first through hole; a first electrical partition is further provided between adjacent two conductive pin barrels; the plug assembly includes a second base; a groove for inserting the insertion end of the plug assembly is provided on the second base; a plurality of conductive pins corresponding to the conductive pin barrels one by one and cooperating with the corresponding conductive pin barrels for plugging to achieve electrical connection are arranged in the groove; a second electrical partition is provided between adjacent two pins.

[0006] In the power connector of the present invention, the conductive pin barrel is fixedly installed in the first through hole by a buckle.

[0007] In the power connector of the present invention, the buckle includes an annular claw sleeved on the conductive pin barrel; a clamping portion recessed inward is circumferentially provided on the side wall of the claw; a plurality of the clamping portions are in tight fit with the outer surface of the conductive pin barrel; the recessed depth of the clamping portion along the insertion direction of the conductive pin barrel gradually becomes deeper from shallow.

[0008] The power connector according to the present invention, wherein the plug assembly further includes an insulating pressure plate detachably connected to the first base; the insulating pressure plate fixedly mounts all the conductive pins in the groove.

[0009] The power connector according to the present invention, wherein the insulating pressure plate is located at an end of the first base away from the groove; the insulating pressure plate is provided with a plurality of second through holes corresponding to the conductive pins one by one; the second through holes are in interference fit with the tails of the corresponding conductive pins.

[0010] The power connector according to the present invention, wherein positioning plates are provided on both sides of the second through hole in the insulating pressure plate; a card slot communicating with the second through hole and for the conductive pin to pass through is formed between the two positioning plates.

[0011] The power connector according to the present invention, wherein a reinforcing rib connecting the adjacent two positioning plates is further provided between the adjacent two card slots.

[0012] The power connector according to the present invention, wherein in the first base and the insulating pressure plate, one of them is provided with clamping members on both side surfaces, and the other is provided with snap grooves mating with the two clamping members one by one.

[0013] The power connector according to the present invention, wherein the socket assembly further includes an insulating jacket; the insulating jacket is provided with a fixing groove adapted to the outer contour of the second base; the second base is fixedly mounted in the fixing groove through a snap assembly; the insulating jacket is provided with a plurality of channels corresponding to the conductive pin barrels one by one; when the plug assembly and the socket assembly are plugged in place, the conductive pins pass through the corresponding channels and are plugged and matched with the conductive pin barrels inside to achieve electrical conduction.

[0014] The power connector according to the present invention, wherein when the plug assembly is an AC plug, the socket assembly is an AC socket; when the plug assembly is a DC plug, the socket assembly is a DC socket, and the socket assembly is further provided with signal contact member jacks and a plurality of signal contact members fixedly mounted in the signal contact member jacks.

[0015] The beneficial effect of the present invention is that: the power connector is ingeniously designed. By providing a first electrical partition between adjacent two conductive pin barrels and a second electrical partition between adjacent two conductive pins, both the first electrical partition and the second electrical partition have the function of blocking electricity, and electricity can only move around the electrical partitions, thereby increasing the creepage distance between adjacent two conductive pin barrels and between adjacent two conductive pins; improving the voltage resistance of the plug assembly and the socket assembly, and thus reducing the potential safety hazards during the use of the power connector. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further explain the present invention in conjunction with the accompanying drawings and embodiments. The accompanying drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0017] Figure 1 is an exploded perspective view of a power connector according to an embodiment of the present invention (the power connector is an input module).

[0018] Figure 2 is Figure 1 an exploded perspective view of the plug assembly 20 in

[0019] Figure 3 is Figure 2 a schematic structural view of the second base 21 in

[0020] Figure 4 is Figure 2 a schematic structural view of the insulating pressure plate 25 in

[0021] Figure 5 is Figure 1 an exploded perspective view of the socket assembly 10 in

[0022] Figure 6 is Figure 5 a schematic structural view of the insulating jacket 16 in

[0023] Figure 7 is Figure 5 a schematic structural view of the first base 11 in

[0024] Figure 8 is an exploded perspective view of a power connector according to another embodiment of the present invention (the power connector is an output module). Detailed implementation manners

[0025] The terms "first", "second", "third", "fourth", etc. in the specification, claims and accompanying drawings of the present invention are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0026] References to "embodiments" in this specification mean that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] "A plurality of" means two or more. "And / or" describes the relationship between associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0028] Moreover, terms indicating directions such as "upper, lower, front, rear, left, right, upper end, lower end, longitudinal" etc. are all referenced based on the attitude position of the device or equipment described in this solution during normal use.

[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0030] 1. Embodiment 1:

[0031] A power connector according to a preferred embodiment of the present invention, which is an input module; as Figures 1-7 shown, the input module includes a socket assembly 10 and a plug assembly 20; the socket assembly 10 is an AC socket; the plug assembly 20 is an AC plug; the socket assembly 10 is electrically connected to the module power supply PCB board 30; the socket assembly 10 includes a first base 11; the first base 11 has a rectangular structure, and a plurality of first through holes 12 are provided on the first base 11; the plurality of first through holes 12 are arranged side by side on the first base 11; a conductive pin cylinder 13 is arranged in the first through hole 12; a first electrical partition 14 is further provided between two adjacent conductive pin cylinders 13; in this embodiment, the first electrical partition 14 is a strip-shaped plate structure; the first electrical partition 14 is arranged on one end face or both end faces of the first base 11. The first electrical partition 14 can block electricity, so that the electricity of the conductive pin cylinder 13 does not directly reach the adjacent conductive pin cylinder 13 in a straight line, but reaches the adjacent conductive pin cylinder 13 after bypassing the first electrical partition 14, and the creepage distance between two adjacent conductive pin cylinders 13 is further increased. This design helps to reduce electrical interference and crosstalk, optimize the electrical performance of the connector, and ensure stable power transmission.

[0032] The plug assembly 20 includes a second base 21; the second base 21 has a rectangular structure, and a groove 22 for inserting the insertion end of the plug assembly 20 is provided on the second base 21; the shape of the groove 22 matches the outer contour of the plug assembly 20; ensuring the precise fit and stable connection between the plug assembly and the socket assembly. A plurality of conductive pins 23 corresponding to the conductive pin barrels 13 one by one and mating with the corresponding conductive pin barrels 13 for electrical connection are provided in the groove 22. Optionally, an opening 213 communicating with the groove 22 and through which the conductive pins pass is further provided on the second base 21; in this embodiment, the conductive pins 23 are of L-shaped, I-shaped or other structures. A second electrical partition 24 is provided between two adjacent conductive pins 23. The function of the second electrical partition 24 is the same as that of the first electrical partition 14, and it can increase the creepage distance between two adjacent conductive pins 23. As the creepage distance increases, the overall withstand voltage of the input module increases accordingly, thereby reducing the potential safety hazards during use. By respectively providing electrical partitions (the first electrical partition 14 and the second electrical partition 24) in the socket assembly and the plug assembly, the creepage distance between adjacent conductive pins or pin barrels can be effectively increased. The increase in the creepage distance can reduce the risk of electrical breakdown, thereby improving the withstand voltage of the entire connector and reducing the potential safety hazards caused by electrical failures.

[0033] The power connector is ingeniously designed. By providing a first electrical partition between two adjacent conductive pin barrels and a second electrical partition between two adjacent conductive pins, both the first electrical partition and the second electrical partition have the function of blocking electricity, and electricity can only move around the electrical partitions, thereby increasing the creepage distance between two adjacent conductive pin barrels and between two adjacent conductive pins; improving the withstand voltage of the plug assembly and the socket assembly, and thus reducing the potential safety hazards during the use of the power connector.

[0034] Further, the second electrical partition 24 is of a plate-like structure, and a plurality of second electrical partitions 24 divide the groove 22 into a plurality of independent spaces for placing a single conductive pin, which can further optimize the electrical performance. Each conductive pin is located in an independent space, reducing the electrical interference and crosstalk between adjacent conductive pins, and improving the electrical performance and stability of the connector. In this embodiment, the conductive pin barrel 13 is detachably installed on the first base; specifically, the conductive pin barrel 13 is fixedly installed in the first through hole 12 through a buckle 15; when maintenance or replacement of the conductive pin barrel is required, it can be conveniently disassembled for inspection or replacement without replacing the entire socket assembly. This greatly reduces the maintenance cost and time, and improves the maintainability of the equipment.

[0035] In one embodiment, the buckle member 15 includes an annular claw sleeved on the conductive pin barrel 13; the side wall of the claw is circumferentially provided with a clamping portion 151 recessed inward, and a plurality of clamping portions 151 are in fit and abutment with the outer surface of the conductive pin barrel 13; the recess depth of the clamping portion 151 gradually increases from shallow to deep along the insertion direction of the conductive pin barrel 13. When installing the conductive pin barrel, the conductive pin barrel can be smoothly pushed along the insertion direction, and the clamping portion 151 gradually contacts and abuts against the outer surface of the conductive pin barrel to achieve firm fixation. When disassembling, only a certain force needs to be applied to overcome the clamping force of the clamping portion, and the conductive pin barrel can be pulled out, which is convenient for maintenance and replacement. Through the design of the annular claw and the clamping portion 151, the buckle member 15 can firmly fix the conductive pin barrel 13 in the first through hole 12. The clamping portion 151 is in fit and abutment with the outer surface of the conductive pin barrel 13, forming a multi-point contact fixing method, so that the conductive pin barrel will not easily loosen or fall off during the insertion and extraction processes, enhancing the stability of the connection.

[0036] Furthermore, the AC plug assembly 20 further includes an insulating pressing plate 25 detachably connected to the first base 11; the insulating pressing plate 25 fixedly installs all the conductive pins 23 in the groove 22. The insulating pressing plate 25 is made of insulating material and can wrap all the conductive pins 23 to prevent them from accidentally contacting adjacent metal components or circuits, thereby avoiding the risk of short circuit or other electrical faults. This insulating design improves the electrical safety of the connector. The insulating pressing plate 25 is located at one end of the first base 11 away from the groove 22; the insulating pressing plate 25 is provided with a plurality of second through holes 251 corresponding to the conductive pins 23 one by one; the second through holes 251 are in interference fit with the pin tails of the corresponding conductive pins 23; and can effectively fix the conductive pins 23 in the groove 22 on the second base 211. This interference fit design can prevent the conductive pins from loosening or falling off due to external forces during use, ensuring the stability and reliability of the connection.

[0037] Further, positioning plates 252 are provided on both sides of the second through hole 251 in the insulating pressure plate 25; a card slot 253 communicating with the second through hole 251 and for the conductive pin 23 to pass through is formed between the two positioning plates 252; the card slot 253 can effectively restrain and fix the tail of the conductive pin 23, preventing the conductive pin 23 from loosening or falling off due to external forces during use; further, a reinforcing rib 254 connecting the adjacent two positioning plates 252 is provided between the adjacent two card slots 253. The conductive pin 23 can be accurately guided and fixed through the positioning plate 252 and the card slot 253, ensuring its accurate position in the insulating pressure plate 25, which is beneficial to improving the alignment accuracy during insertion and extraction, reducing wear, and extending the service life of the conductive pin. By connecting the adjacent two positioning plates 252 with the reinforcing rib, an integral frame structure is formed, improving the mechanical strength and anti-deformation ability of the insulating pressure plate 25, enabling it to maintain a stable shape and not be easily damaged when subjected to external forces (such as insertion and extraction forces, impact forces, etc.).

[0038] In an embodiment, clamping members 255 are provided on both side surfaces of the insulating pressure plate 25, and clamping grooves 211 that are respectively and cooperatively engaged with the two clamping members 255 are correspondingly provided at both ends of the outer surface of one side of the second base 21; optionally, the clamping members 255 can also be provided on the first base 11, and the clamping grooves 211 are provided on the insulating pressure plate 25. The above simple position replacements all fall within the protection scope of the present invention. The multiple clamping members 255 and the multiple clamping grooves 211 form a snap-fit assembly; the insulating pressure plate 25 is fixedly connected to the first base 11 through the snap-fit assembly, and thus can effectively resist external forces such as vibration and pulling that may occur during use, ensuring the stability and reliability of the connection.

[0039] During installation, only by aligning the clamping member 255 with the clamping groove 211 and gently pressing can a firm connection be achieved; during disassembly, only by applying a certain external force to overcome the elasticity of the snap can the insulating pressure plate be separated from the first base. This design simplifies the assembly process and improves the assembly efficiency and accuracy.

[0040] In this embodiment, a connecting member 26 is provided on the second base 21. A first engaging groove 212 is formed on one side of the second base 21 close to the module power supply PCB board 30, and a second engaging groove (not shown) is formed on the module power supply PCB board 30. One end of the connecting member 26 is engaged with the first engaging groove 212, and the other end thereof is engaged with the second engaging groove, so as to fixedly mount the first base 11 on the module power supply PCB board 30. The first base 11 and the module power supply PCB board 30 are snap-connected through the connecting member 26 to form a firm integral structure. This design can effectively resist external forces such as vibration and pulling that may occur during use, ensure the stable and reliable connection between the first base and the PCB board, and avoid poor contact or electrical faults caused by loose connection. During assembly, only one end of the connecting member 26 needs to be aligned with and engaged with the first engaging groove 212 on the first base 11, and then the other end is aligned with and engaged with the second engaging groove (not shown in the figure) on the PCB board, and the installation of the first base can be completed. This design simplifies the assembly process and improves the assembly efficiency and accuracy.

[0041] Furthermore, the socket assembly 10 further includes an insulating jacket 16; the insulating jacket 16 is made of insulating material and can wrap the exposed metal parts of the entire socket assembly 10 to provide additional insulation protection. This can prevent users from accidentally touching the live parts during use, reduce the risk of electric shock, and improve the safety of use. A fixing groove 161 adapted to the outer contour of the second base 21 is provided on the insulating jacket 16; the second base 21 is fixedly installed in the fixing groove 161 through a snap assembly; a plurality of channels corresponding to the conductive pin barrels 13 one by one are provided on the insulating jacket 16, and these channels can guide the conductive pins 23 on the plug assembly 20 to accurately insert into the corresponding conductive pin barrels 13, ensuring the accuracy and reliability of the insertion. A third engaging groove 162 is provided on the inner side wall of the fixing groove 161 for engaging and connecting with the engaging points 162 on the first base. The channels can also play a certain positioning role for the conductive pins to prevent them from shifting or skewing during the insertion and extraction process; when the plug assembly 20 and the socket assembly 10 are inserted in place, the conductive pins 23 pass through the corresponding channels and are inserted and mated with the conductive pin barrels 13 inside to achieve electrical conduction.

[0042] 2. Embodiment 2:

[0043] A power connector according to a preferred embodiment of the present invention is an output module; as Figure 8 shown, the output module includes a socket assembly 10 and a plug assembly 20; the socket assembly 10 is an AC socket; its structure is the same as that of the power connector in Embodiment 1 and will not be described in detail. The difference is that the plug assembly 20 is a DC plug; the socket assembly 10 is a DC socket, and signal contact jacks are further provided on the socket assembly 10, and a plurality of signal contacts 17 fixedly installed in the signal contact jacks.

[0044] The power connector is ingeniously designed. By providing a first electrical partition between two adjacent conductive pin cylinders and a second electrical partition between two adjacent conductive pins, both the first electrical partition and the second electrical partition have the function of blocking electricity, and electricity can only move around the electrical partitions, thereby increasing the creepage distance between two adjacent conductive pin cylinders and between two adjacent conductive pins; improving the voltage resistance of the plug assembly and the socket assembly, and thus reducing the potential safety hazards during the use of the power connector.

[0045] It should be understood that those of ordinary skill in the art can make improvements or transformations according to the above description, and all such improvements and transformations shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A power connector, characterized in that, It includes a socket assembly and a plug assembly; the socket assembly includes a first base; a plurality of first through holes are provided on the first base; a conductive pin cylinder is arranged in the first through hole; a first electrical partition is further arranged between two adjacent conductive pin cylinders; the plug assembly includes a second base; a groove for the insertion end of the plug assembly to be inserted is provided on the second base; a plurality of conductive pins corresponding to the conductive pin cylinders one by one and cooperating with the corresponding conductive pin cylinders for plugging to achieve electrical connection are arranged in the groove; a second electrical partition is arranged between two adjacent pins.

2. The power connector according to claim 1, wherein The conductive pin cylinder is fixedly installed in the first through hole through a fastener.

3. The power connector according to claim 2, characterized in that, The fastener includes an annular claw sleeved on the conductive pin cylinder; a clamping portion recessed inward is circumferentially arranged on the side wall of the claw; a plurality of the clamping portions are in tight fit with the outer surface of the conductive pin cylinder; the recessed depth of the clamping portion along the insertion direction of the conductive pin cylinder gradually increases from shallow to deep.

4. The power connector according to any one of claims 1-3, characterized in that, The plug assembly further includes an insulating pressing plate detachably connected to the first base; the insulating pressing plate fixedly installs all the conductive pins in the groove.

5. The power connector according to claim 4, characterized in that, The insulating pressing plate is located at one end of the first base away from the groove; a plurality of second through holes corresponding to the conductive pins one by one are provided on the insulating pressing plate; the second through holes are in interference fit with the pin tails of the corresponding conductive pins.

6. The power connector according to claim 5, characterized in that, Positioning plates are arranged on both sides of the second through hole in the insulating pressing plate; a card slot communicating with the second through hole and for the conductive pin to pass through is formed between the two positioning plates.

7. The power connector according to claim 6, wherein A reinforcing rib connecting the two adjacent positioning plates is further arranged between two adjacent card slots.

8. The power connector according to claim 4, characterized in that, Among the first base and the insulating pressing plate, clamping members are arranged on both side surfaces of one of them, and clamping grooves are arranged on the other and are in one-to-one cooperation and clamping connection with the two clamping members.

9. The power connector according to claim 1, characterized in that, The socket assembly further includes an insulating outer sleeve; a fixing groove adapted to the outer contour of the second base is provided on the insulating outer sleeve; the second base is fixedly installed in the fixing groove through a snap component; a plurality of channels corresponding to the conductive pin cylinders one by one are provided on the insulating outer sleeve; when the plug assembly is plugged into the socket assembly in place, the conductive pin passes through the corresponding channel and is in plugging cooperation with the conductive pin cylinder inside to achieve electrical conduction.

10. The power connector according to any one of claims 1-3, 5-9, characterized in that, When the plug assembly is an AC plug, the socket assembly is an AC socket; when the plug assembly is a DC plug, the socket assembly is a DC socket, and a signal contact jack and a plurality of signal contacts fixedly installed in the signal contact jack are further provided on the socket assembly.

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