A universal charging base

Abstract

This utility model belongs to the field of charging system technology and proposes a universal charging base, including a base body. The base body is fitted with a fast charging end and a slow charging end. The fast charging end connects to a docking plate. Two through-tubes are provided on the other side of the docking plate. Each through-tube has an internal mounting cavity containing a snap-fit ​​piece. Mounting holes are formed on the side walls of the mounting cavities, and bolts are slidably fitted into these holes. The bolts pass through the snap-fit ​​pieces and connect to the inner wall of the mounting cavities. A tail end cap is fitted onto the end of each through-tube. The slow charging end connects to a slow charging socket. A tail end sleeve is fitted onto the other end of the slow charging socket. The inner cavity of the slow charging socket has multiple power plugs, and the inner cavity of the tail end sleeve has multiple docking slots. This universal charging base proposes inserting a snap-fit ​​piece with a DC cable into the mounting cavity and using bolts to fix the snap-fit ​​piece to the through-tube. A tail end sleeve with a slow charging AC cable is fitted onto the slow charging socket. The specifications of the base body, fast charging end, slow charging end, docking plate, through-tubes, and slow charging socket are standardized.

Description

Technical Field

[0001] This utility model belongs to the field of charging system technology, and specifically relates to a universal charging stand. Background Technology

[0002] With the rapid development of new energy vehicles, the compatibility and universality of charging equipment have become the focus of industry attention. As a key component of the charging system, the design of universal charging sockets directly affects the adaptability and efficiency of charging cables.

[0003] Currently, there are various charging cables on the market with different current specifications (such as 16A, 32A, 63A, etc.) and different materials (copper wire, aluminum wire). The existing universal charging base structure is difficult to achieve wide compatibility, which means that when using charging cables of different specifications or materials, it is necessary to replace them with special universal charging bases, which increases the cost of use and wastes resources.

[0004] Currently, the industry generally adopts a solution of building a BusBar into a universal charging dock to achieve power transmission. However, in this solution, due to the different sealing structures at the tail of charging cables with different wire diameters, existing technologies require the development of separate sealing molds for each wire diameter, resulting in a wide variety of molds and high production costs. Furthermore, since aluminum wires typically form a rectangular structure at the tail after wave soldering, while copper wires require a circular sealing structure, the existing universal charging dock sealing design cannot simultaneously meet the sealing requirements of both copper and aluminum wires. This necessitates the development of separate dedicated sealing molds, further increasing manufacturing complexity.

[0005] In summary, existing universal charging docks suffer from poor versatility and high mold development costs. There is an urgent need for a universal charging dock solution that can be compatible with charging cables of different current specifications and materials to reduce manufacturing costs, improve adaptability, and meet the new energy vehicle industry's demand for efficient and standardized charging equipment. Utility Model Content

[0006] To address the aforementioned issues, this utility model proposes a universal charging dock, comprising: a dock body, in which a fast charging end and a slow charging end are embedded; one end of the fast charging end is connected to one side of a docking plate; the other side of the docking plate has two parallel-arranged tubes, each tube having a coaxially arranged mounting cavity; a snap-fit ​​piece is placed inside the mounting cavity; mounting holes are formed on the sidewalls of the mounting cavities; bolts are slidably fitted into the mounting holes; the bolts pass through the snap-fit ​​pieces and form a threaded connection with the inner wall of the mounting cavity; and a tail cap is fitted onto the end of the tube.

[0007] One end of the slow charging head is connected to one end of the slow charging head socket, and the other end of the slow charging head socket is fitted into the tail end sleeve. The inner cavity of the slow charging head socket is provided with multiple axially arranged power plugs, and the inner cavity of the tail end sleeve is provided with multiple axially arranged docking slots. One end of each docking slot corresponds to one of the multiple power plugs to form a plug-in connection.

[0008] Furthermore, the mounting cavity includes a coaxially connected straight cavity and an expanded cavity. One end of the straight cavity is connected to the docking plate, and bolts penetrate the snap-fit ​​piece to form a threaded connection with the inner wall of the straight cavity.

[0009] Furthermore, the side wall of the through pipe is provided with an annular protrusion arranged coaxially with the mounting hole, and the end cap is sleeved on the end of the annular protrusion, forming a storage cavity for storing bolts with the annular protrusion and the end cap.

[0010] Furthermore, the end cap includes a plate body, with an inner ring portion and an outer ring portion on one side of the plate body. The outer wall of the inner ring portion is sleeved with the inner wall of the ring protrusion, and the inner wall of the outer ring portion is sleeved with the outer wall of the ring protrusion.

[0011] Furthermore, the side wall of the pipe is provided with a connecting part, which is located next to the annular protrusion, and the end of the connecting part is provided with an inverted part, and the plate is provided with a rod that is hinged to the inverted part.

[0012] Furthermore, the tail cap includes a cap body, and the side wall of the cap body is provided with an inner end block and an outer end block arranged coaxially. The outer wall of the inner end block is sleeved with the inner wall of the through pipe, and the inner wall of the outer end block is sleeved with the outer wall of the through pipe. Both the cap body and the inner end block are provided with through holes coaxially.

[0013] Furthermore, several coaxially arranged sealing rings are fitted onto the outer wall of the inner end block.

[0014] Furthermore, the docking slot includes a housing, and the inner cavity of the housing is provided with two elastic clamping members arranged in opposite directions. A first gap is maintained between the first ends of the two elastic clamping members for storing cables, and a second gap is maintained between the second ends of the two elastic clamping members for storing power plugs.

[0015] Furthermore, the docking slot block also includes a first clamping member and a second clamping member. One end of the first clamping member is connected to the end piece, and the other end of the first clamping member is connected to the second clamping member. Both the first clamping member and the second clamping member adopt a V-shaped structure, and the bearing surface of the first clamping member is docked with the first end of the elastic clamping member.

[0016] Furthermore, the bearing axial array of the first clamping member is provided with several grooves.

[0017] Compared with the prior art, the embodiments of this utility model have at least the following advantages:

[0018] This utility model relates to a universal charging base. By changing the installation method of the cable and the universal charging base, it proposes to insert a snap-fit ​​piece with a DC cable into the mounting cavity, and use a bolt to pass through the through hole of the snap-fit ​​piece and form a threaded connection with the inner wall of the mounting cavity, thereby achieving relative fixation between the snap-fit ​​piece and the tube. The tail end sleeve with a slow-charging AC cable is fitted onto the end of the slow-charging end holder to meet the assembly requirements of the fast-charging cable, slow-charging cable and base body. This allows for the processing of the base body, fast-charging end, slow-charging end, docking plate, tube and slow-charging end holder to only require processing of uniform specifications and models, avoiding the problem of numerous mold types and directly reducing production costs. At the same time, with the tail end cap fitted onto the end of the tube and the tail end sleeve fitted onto the slow-charging end holder, the installation environment of the cable end is sealed, meeting the sealing requirements of copper and aluminum wires.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

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

[0021] Figure 1 A schematic diagram of a universal charging dock according to an embodiment of the present invention is shown;

[0022] Figure 2 An exploded view of the universal charging dock in an embodiment of this utility model is shown;

[0023] Figure 3 A schematic diagram of the docking plate and the through pipe in an embodiment of this utility model is shown;

[0024] Figure 4 A bottom view of the docking plate and the through pipe in an embodiment of this utility model is shown;

[0025] Figure 5 It shows Figure 4 A cross-sectional schematic diagram of AA in the middle;

[0026] Figure 6 A schematic diagram of the end cap in an embodiment of this utility model is shown;

[0027] Figure 7A schematic diagram of the snap-fit ​​tab in an embodiment of this utility model is shown;

[0028] Figure 8 A schematic diagram of the tail cap in an embodiment of this utility model is shown;

[0029] Figure 9 A schematic diagram of the slow charging terminal in an embodiment of this utility model is shown;

[0030] Figure 10 A schematic diagram of the docking groove block in an embodiment of this utility model is shown;

[0031] Figure 11 A partial cross-sectional schematic diagram of the docking groove block in an embodiment of this utility model is shown.

[0032] In the diagram, 1. Base; 2. Fast charging end; 3. Slow charging end; 4. Connecting plate; 5. Through pipe; 6. Mounting cavity; 601. Straight through cavity; 602. Expanding cavity; 7. Snap-fit ​​piece; 8. Slow charging end base; 9. Tail end sleeve; 10. Power plug; 11. Connecting groove block; 1101. Shell; 1102. Elastic clamping component; 1103. First clamping component; 1104. Second clamping component; 12. Ring protrusion; 13. End cap; 1301. Plate; 1302. Inner ring; 1303. Outer ring; 1304. Rod; 14. Connecting part; 15. Tail end cap; 1501. Cover body; 1502. Inner end block; 1503. Outer end block; 1504. Through hole; 16. Mounting hole; 17. Inverted part; 18. Bolt; 19. Flange; 20. Charging cover. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] It should be noted that in the current design of conventional universal fast and slow charging docks, the fast charging universal charging dock usually adopts a 9-hole DC interface to support the direct input of high-power DC power into the battery without the need for on-board charger conversion. Its power supply and signal transmission require a total of 9 cables, including 2 high-voltage DC power supply cables, which are used to directly connect the high-voltage DC output of the charging pile to the positive terminal of the battery and to connect the charging pile to the negative terminal of the battery, respectively.

[0035] The standard slow-charging universal charging dock uses a 7-hole AC interface. It converts AC power to DC power through the on-board charger for charging. It requires a total of 7 cables for power supply and signal transmission, including 3 AC power cables, 2 control and communication cables, and 2 spare cables.

[0036] This utility model provides a universal charging dock. Figure 1 A cross-sectional view of a universal charging dock according to an embodiment of the present invention is shown, with reference to... Figure 1 , Figure 2 and Figure 7 The universal charging dock includes: a base 1, in which a fast charging end 2 and a slow charging end 3 are embedded; one end of the fast charging end 2 is connected to one side of a docking plate 4; the other side of the docking plate 4 is provided with two parallel connecting tubes 5; each connecting tube 5 is provided with a coaxially arranged mounting cavity 6; a snap-fit ​​piece 7 is built into the mounting cavity 6; mounting holes 16 are opened on the side wall of the mounting cavity 6; bolts 18 are slidably connected to the mounting holes 16; the bolts 18 pass through the snap-fit ​​piece 7 and form a threaded connection with the inner wall of the mounting cavity 6; and a tail cap 15 is sleeved at the end of the connecting tube 5.

[0037] One end of the slow charging terminal 3 is connected to one end of the slow charging terminal 8, and the other end of the slow charging terminal 8 is sleeved with the tail end sleeve 9. The inner cavity of the slow charging terminal 8 is provided with a plurality of axially arranged power plugs 10, and the inner cavity of the tail end sleeve 9 is provided with a plurality of axially arranged docking slots 11. One end of each of the plurality of docking slots 11 is respectively connected to a plurality of power plugs 10 to form a plug-in connection.

[0038] In this utility model, a through hole is opened on one side wall of the snap-fit ​​piece 7, and the other end of the snap-fit ​​piece 7 is used to crimp with a DC cable. One end of each of the plurality of docking slot blocks 11 is respectively connected to a plurality of power plug blocks 10 to form a plug-in, and the other end of each of the plurality of docking slot blocks 11 is respectively connected to a corresponding slow-charging AC cable.

[0039] In actual use, by inserting the snap-fit ​​piece 7 with DC cable into the mounting cavity 6, and using bolt 18 to pass through the through hole of snap-fit ​​piece 7 and form a threaded connection with the inner wall of mounting cavity 6, the snap-fit ​​piece 7 and the through tube 5 are relatively fixed; the tail sleeve 9 with slow charging AC cable is sleeved on the end of slow charging terminal 8 to meet the operation requirements of quick assembly of fast charging cable, slow charging cable and base 1.

[0040] Meanwhile, in the universal charging dock proposed in this application, the dock body 1, fast charging end 2, slow charging end 3, docking plate 4, through tube 5, and slow charging end 8 are all firmware. When facing different specifications and sizes of cables, it is only necessary to replace the corresponding snap-fit ​​7 and tail sleeve 9. The dimensions and specifications of the dock body 1, fast charging end 2, slow charging end 3, docking plate 4, through tube 5, and slow charging end 8 do not need to be changed. This means that in the production and processing of the dock body 1, fast charging end 2, slow charging end 3, docking plate 4, through tube 5, and slow charging end 8, only uniform specifications and models need to be processed, avoiding the problem of numerous mold types and directly reducing production costs.

[0041] In addition, by attaching the end cap 15 to the end of the conduit 5 and the end sleeve 9 to the slow charging terminal 8, the installation environment of the cable end is sealed, ensuring the sealing environment of the cable end and meeting the sealing requirements of copper and aluminum wires.

[0042] For example, based on two high-voltage DC power supply cables, three AC power supply cables, and two control and communication cables, the number of the through pipe 5 is two, and the number of the power plug 10 and the docking slot 11 is five. However, the present invention is not limited to the number of through pipe 5, power plug 10, and docking slot 11. Those skilled in the art can comprehensively consider the connection principle of the present invention and the actual application situation, as long as the principle of the present invention can be realized.

[0043] Meanwhile, during the production and processing, the docking plate 4 and the through pipe 5 are integrally formed; in order to further improve the production and processing efficiency of the universal charging base, the flange 19, the charging cover 20, the base 1, the fast charging end 2, the slow charging end 3, the docking plate 4, the through pipe 5, and the slow charging end 8 that are compatible with the universal charging base are assembled into an integral component, thereby improving the later installation and use and improving the assembly efficiency of the universal charging base.

[0044] exist Figure 4 and Figure 5 In the example shown, the mounting cavity 6 includes a coaxially connected straight cavity 601 and an expanded cavity 602. One end of the straight cavity 601 is connected to the mounting plate 4, and a bolt 18 passes through the snap-fit ​​piece 7 to form a threaded connection with the inner wall of the straight cavity 601. During cable installation, the outer protective sheath of the cable end is removed, and the cable core at the cable end is crimped with the snap-fit ​​piece 7. The straight cavity 601 is used to fix the cable core at the cable end, and the expanded cavity 602 is used to accommodate the increased outer diameter of the cable's outer protective sheath to accommodate cables of different sizes.

[0045] In addition, the side wall of the through pipe 5 is provided with an annular protrusion 12 arranged coaxially with the mounting hole 16. The end of the annular protrusion 12 is sleeved with an end cap 13. The annular protrusion 12 and the end cap 13 form a storage cavity for storing the bolt 18. When the bolt 18 is in a threaded connection with the inner wall of the mounting cavity 6, the end of the bolt 18 is protected by the end cap 13.

[0046] exist Figure 6 In the example shown, the end cap 13 includes a plate 1301. The plate 1301 has an inner ring portion 1302 and an outer ring portion 1303 on one side. The outer wall of the inner ring portion 1302 is sleeved with the inner wall of the annular protrusion 12, and the inner wall of the outer ring portion 1303 is sleeved with the outer wall of the annular protrusion 12. The inner ring portion 1302 and the outer ring portion 1303 arranged in an inner and outer ring configuration improve the stability and sealing of the connection between the end cap 13 and the annular protrusion 12, while preventing the mounting cavity 6 from communicating with the external environment and ensuring the stability of the cable's conductive operation to the fast charging terminal 2.

[0047] Combination Figure 5 and Figure 4 The side wall of the tube 5 is provided with a connecting part 14, which is located beside the annular protrusion 12. The end of the connecting part 14 is provided with an inverted part 17. The plate 1301 is provided with a rod 1304 that is hinged to the inverted part 17, so that the end cap 13 can rotate around the rod 1304 as the axis, thereby realizing the connection between the tube 5 and the end cap 13 and facilitating the change of the docking state between the end cap 13 and the annular protrusion 12.

[0048] exist Figure 1 and Figure 8 In the example shown, the tail cap 15 includes a cap body 1501. The side wall of the cap body 1501 is provided with an inner end block 1502 and an outer end block 1503 arranged coaxially. The outer wall of the inner end block 1502 is sleeved with the inner wall of the through pipe 5, and the inner wall of the outer end block 1503 is sleeved with the outer wall of the through pipe 5. Both the cap body 1501 and the inner end block 1502 are coaxially provided with a through hole 1504. The inner wall of the through hole 1504 is sleeved with the outer wall of the cable. This application seals the end of the through pipe 5 by using the tail cap 15, thereby sealing the installation cavity 6 to ensure the stability of the environment inside the installation cavity 6 and to limit the cable, further ensuring the stability of the cable end.

[0049] For example, several coaxially arranged sealing rings are fitted onto the outer wall of the inner end block 1502 to increase the sealing performance of the mounting cavity 6.

[0050] refer to Figure 9 , Figure 10 and Figure 11The docking slot 11 includes a housing 1101. The inner cavity of the housing 1101 is provided with two elastic clamping members 1102 arranged in opposite directions. A first gap is maintained between the first ends of the two elastic clamping members 1102 for storing cables, and a second gap is maintained between the second ends of the two elastic clamping members 1102 for storing power plug 10.

[0051] It should be noted that the elastic clamps 1102 are all metal conductive parts. The first ends of the two elastic clamps 1102 are used to crimp the cable end, and the second ends of the two elastic clamps 1102 are used to clamp the power plug 10, thereby achieving a conductive connection between the cable and the power plug 10 and the slow charging terminal 8.

[0052] In addition, the docking slot block 11 also includes a first clamping member 1103 and a second clamping member 1104. One end of the first clamping member 1103 is connected to the end piece, and the other end of the first clamping member 1103 is connected to the second clamping member 1104. Both the first clamping member 1103 and the second clamping member 1104 adopt a V-shaped structure, and the bearing surface of the first clamping member 1103 forms a docking with the first end of the elastic clamping member 1102. The cable is crimped by the first clamping member 1103 and the second clamping member 1104, which further realizes the overall firmness and stability of the cable connection of the docking slot block 11.

[0053] Meanwhile, the bearing axial array of the first clamping member 1103 is provided with several grooves to increase the friction between the bearing surface of the first clamping member 1103 and the cable.

[0054] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of multiple components or the interaction between multiple components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A universal charging dock, comprising: A base (1) is provided with a fast charging end (2) and a slow charging end (3) embedded in it. The fast charging end (2) is connected to one side of a docking plate (4) at one end. The docking plate (4) has two parallel connecting pipes (5) on the other side. Each connecting pipe (5) has a coaxially arranged mounting cavity (6) inside. The mounting cavity (6) has a snap-fit ​​piece (7) inside. The mounting cavity (6) has a mounting hole (16) on its side wall. The mounting hole (16) is slidably fitted with a bolt (18). The bolt (18) passes through the snap-fit ​​piece (7) and forms a threaded connection with the inner wall of the mounting cavity (6). The end of the connecting pipe (5) is fitted with a tail cap (15). One end of the slow charging terminal (3) is connected to one end of the slow charging terminal (8), and the other end of the slow charging terminal (8) is sleeved with the tail sleeve (9). The inner cavity of the slow charging terminal (8) is provided with a plurality of axially arranged power plugs (10), and the inner cavity of the tail sleeve (9) is provided with a plurality of axially arranged docking slots (11). One end of each of the plurality of docking slots (11) is respectively connected to the plurality of power plugs (10) to form a plug-in connection.

2. The universal charging dock according to claim 1, characterized in that, The mounting cavity (6) includes a straight cavity (601) and an expansion cavity (602) that are coaxially connected. One end of the straight cavity (601) is connected to the docking plate (4), and the bolt (18) passes through the snap-fit ​​piece (7) and forms a threaded connection with the inner wall of the straight cavity (601).

3. The universal charging dock according to claim 1, characterized in that, The side wall of the tube (5) is provided with an annular protrusion (12) arranged coaxially with the mounting hole (16). The end of the annular protrusion (12) is sleeved with an end cap (13). The annular protrusion (12) and the end cap (13) form a cavity for storing the bolt (18).

4. The universal charging dock according to claim 3, characterized in that, The end cap (13) includes a plate (1301), and an inner ring portion (1302) and an outer ring portion (1303) are provided on one side of the plate (1301). The outer wall of the inner ring portion (1302) is sleeved with the inner wall of the ring protrusion (12), and the inner wall of the outer ring portion (1303) is sleeved with the outer wall of the ring protrusion (12).

5. The universal charging dock according to claim 4, characterized in that, The side wall of the tube (5) is provided with a connecting part (14), the connecting part (14) is located next to the annular protrusion (12), and the end of the connecting part (14) is provided with an inverted part (17). The plate (1301) is provided with a rod (1304) that is hinged to the inverted part (17).

6. The universal charging dock according to claim 1, characterized in that, The tail cap (15) includes a cap body (1501). The side wall of the cap body (1501) is provided with an inner end block (1502) and an outer end block (1503) arranged coaxially. The outer wall of the inner end block (1502) is sleeved with the inner wall of the through pipe (5), and the inner wall of the outer end block (1503) is sleeved with the outer wall of the through pipe (5). Both the cap body (1501) and the inner end block (1502) are coaxially provided with through holes (1504).

7. The universal charging dock according to claim 6, characterized in that, The outer wall of the inner end block (1502) is fitted with several coaxially arranged sealing rings.

8. The universal charging dock according to claim 1, characterized in that, The docking slot block (11) includes a housing (1101), and the inner cavity of the housing (1101) is provided with two elastic clamping members (1102) arranged in opposite directions. A first gap is maintained between the first ends of the two elastic clamping members (1102) for storing cables, and a second gap is maintained between the second ends of the two elastic clamping members (1102) for storing power plug (10).

9. The universal charging dock according to claim 8, characterized in that, The docking slot block (11) further includes a first clamping member (1103) and a second clamping member (1104). One end of the first clamping member (1103) is connected to the end piece, and the other end of the first clamping member (1103) is connected to the second clamping member (1104). Both the first clamping member (1103) and the second clamping member (1104) adopt a V-shaped structure, and the bearing surface of the first clamping member (1103) is docked with the first end of the elastic clamping member (1102).

10. The universal charging dock according to claim 9, characterized in that, The first clamping member (1103) has a plurality of grooves in its bearing axial array.

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