CN216214283U - Direct current interface that charges - Google Patents
Direct current interface that charges Download PDFInfo
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- CN216214283U CN216214283U CN202122568345.5U CN202122568345U CN216214283U CN 216214283 U CN216214283 U CN 216214283U CN 202122568345 U CN202122568345 U CN 202122568345U CN 216214283 U CN216214283 U CN 216214283U
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- terminal
- main body
- negative terminal
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- insulating main
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model discloses a direct-current charging interface which comprises an insulating main body, a positive terminal, a negative terminal and a signal terminal, wherein the insulating main body is provided with a first insulating layer and a second insulating layer; the insulating main body is cylindrical, a first inserting slot is arranged in the shaft center part of the insulating main body, and a second inserting slot is arranged on the periphery of the first inserting slot; one end of the positive terminal penetrates into the first slot, and the other end of the positive terminal extends towards the tail end of the insulating main body; the negative terminal is arranged on the periphery of the positive terminal, and the signal terminal is arranged on the periphery of the edge of the insulating main body in a penetrating manner; the negative terminal includes a plurality of spigot ends that connect, and signal terminal's quantity is a plurality of, and a plurality of signal terminals and negative terminal connect the interval setting between the spigot for each signal terminal does not all connect spigot all to connect on the same radius line of insulating main part with the negative terminal. According to the utility model, through optimization of arrangement among the terminals, on the basis of ensuring creepage distances among different types of terminals, the internal space of the connector is effectively utilized, the assembly welding difficulty is reduced, and the production efficiency and the qualification rate of finished products are improved.
Description
Technical Field
The utility model relates to the technical field of new energy vehicle charging equipment, in particular to a direct current charging interface.
Background
In the face of increasingly serious energy, climate and environmental problems, the development of new energy vehicles has become a common consensus all over the world. In recent years, the production and sales of electric vehicles have been increasing year by year, which has led to a significant increase in market demand for charging connectors for supplying power to electric vehicles.
The charging connector for the electric vehicle generally includes a receptacle connector and a plug connector. Meanwhile, in order to realize the management of the charging process, a terminal for conducting a low-voltage signal is also arranged in the charging connector. As shown in fig. 6, the 6A charging connector female housing has a positive terminal 01 at the center, a negative terminal 02 at the outer periphery of the positive terminal, and a signal terminal 03 at the peripheral portion of the connector edge.
In order to save the charging time, the electric vehicle charging apparatus often needs to charge the electric vehicle with higher power. According to the specification of EN60664-1 standard on creepage distance, in the 10A charging connector, creepage distance between positive and negative terminals needs to reach at least 2.2 mm. In order to guarantee creepage distance between different types of terminals and avoid mutual influence, the conventional large-current charging connector is often large in size, has the problems of unreasonable space utilization, difficulty in assembly and welding and the like, and also causes the rejection rate of finished products to be high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a direct-current charging interface, which effectively utilizes the inner space of a connector, reduces the assembly welding difficulty and improves the effective efficiency and the qualified rate of finished products on the basis of ensuring the creepage distance between different types of terminals through the optimization of the arrangement among the terminals.
The technical scheme adopted by the utility model is as follows: a direct current charging interface comprises an insulating main body, a positive terminal, a negative terminal and a signal terminal;
the insulating main body is cylindrical, a first inserting groove is formed in the shaft center of the insulating main body, and a second inserting groove is formed in the periphery of the first inserting groove; one end of the positive terminal penetrates into the first slot, and the other end of the positive terminal extends towards the tail end of the insulating main body; the negative terminal is arranged on the periphery of the positive terminal, and the signal terminal is arranged on the periphery of the edge of the insulating main body in a penetrating manner;
the negative terminal includes a plurality of spigot ends that connect, and signal terminal's quantity is a plurality of, and a plurality of signal terminals and negative terminal connect the interval setting between the spigot for each signal terminal does not all connect spigot all to connect on the same radius line of insulating main part with the negative terminal.
According to the utility model, the inserting end of the negative terminal and the signal terminal are arranged in a staggered manner, so that the space in the insulating main body can be utilized to the maximum extent, the effective distance between the negative terminal and the signal terminal is ensured, the signal interference is reduced, and meanwhile, the staggered arrangement is convenient for assembly and welding.
Optionally, the negative terminal further includes a cable connection end and an annular connection portion, one end of the cable connection end is connected to one side of the annular connection portion, and the plurality of plug ends are distributed and connected to the circumference of the other side of the annular connection portion.
Optionally, in the negative terminal, the number of the plug terminals is 4, the annular connecting portion is a regular octagon, and the 4 plug terminals are uniformly distributed and connected to 4 edges of the annular connecting portion;
each signal terminal is arranged opposite to one side of the annular connecting part which is not connected with the plug end.
Preferably, a line connecting each signal terminal and the axis of the insulating body passes through a midpoint of a side of the annular connecting portion to which the contact end is not connected.
Optionally, the inner ring side wall and the outer ring side wall of the second slot are respectively provided with a contact port corresponding to the negative terminal and the signal terminal, and the negative terminal and the signal terminal are respectively provided with an elastic protrusion; under the action of no external force, the elastic protruding parts of the negative terminal and the signal terminal respectively extend into the second connecting slot from the corresponding contact ports;
the positive terminal comprises a plug end and a cable connecting end, and the plug end of the positive terminal penetrates into the first plug slot; the plug end of the positive terminal is in a hollow conical shape, and at least two notches extending along the axial direction of the positive terminal are arranged in the circumferential direction of the plug end. This makes the spigot of the positive terminal can cooperate with the pin of the male seat to the effective electrical connection is realized to the elastic clamping pin.
Optionally, the outer periphery of the insulating main body is provided with a thread, and the thread is sleeved with an elastic rubber ring and is in threaded connection with a nut. The connector can be conveniently connected and fixed with other structures such as the shell.
Optionally, the end face of the tail end of the insulating main body between the positive terminal and the negative terminal, and between the negative terminal and the signal terminal is respectively provided with at least one protruding portion or at least one recessed portion.
Among the above technical scheme, the design of the insulating end face shape between the different grade type terminal can increase creepage distance, further reduces the signal transmission influence to signal terminal.
Optionally, the end faces of the tail end of the insulation main body between the positive terminal and the negative terminal and between the negative terminal and the signal terminal are respectively in a convex arc shape, a concave arc shape, a wave shape or a step shape. Other surface shapes that increase surface area may of course be chosen to achieve an increase in creepage distance.
Optionally, the dc charging interface further includes an insulating rear cover, the insulating rear cover is fixedly mounted inside the tail end of the insulating main body, and the insulating rear cover is matched with the shape of the inner end face of the tail end of the insulating main body.
Optionally, the insulating rear cover is made of a PBT material and is formed in an injection molding mode, and the insulating rear cover is provided with a foolproof corner cut. The lid can realize effectively fixing each terminal in insulating main part tail end department after insulating, prevents slow-witted corner cut's setting and is convenient for assemble more.
Advantageous effects
According to the utility model, the signal terminal and the negative terminal are arranged at intervals, so that the space in the insulating main body can be utilized to the maximum, the assembly and welding difficulty is greatly reduced, the effective creepage distance between different types of terminals is ensured, the signal interference can be reduced, the electric connection performance of the connector is improved, and the influence on the charging control process is reduced.
Meanwhile, the surface structure of the end face of the tail end of the insulating body is improved, the creepage distance between different types of terminals is increased, the standard requirements can be met, and the use safety is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a dc charging interface according to an embodiment of the present invention;
FIG. 2 is a schematic view of an assembly structure of an embodiment of the DC charging interface of the present invention;
FIG. 3 is a front view of an embodiment of the DC charging interface of the present invention;
FIG. 4 shows a top view of FIG. 3;
fig. 5 is a schematic cross-sectional view illustrating a dc charging interface according to an embodiment of the utility model; in fig. 1-5, 1-insulating body, 11-thread, 12-first socket, 13-second socket, 2-elastic rubber ring, 3-signal terminal, 31-signal terminal elastic projection, 4-negative terminal, 41-negative terminal cable connection end, 42-annular connection portion, 43-negative terminal connection plug, 5-positive terminal, 51-positive terminal connection plug, 52-positive terminal cable connection end, 53-notch, 6-insulating rear cover, 61-first projection, 62-second projection, 63-foolproof chamfer, 7-nut;
fig. 6 is a schematic structural diagram of a conventional 6A charging connector, in which 01-positive terminal, 02-negative terminal, and 03-signal terminal.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
In consideration of the defects of the existing large-current charger that the rejection rate of finished products is high due to unreasonable space utilization, difficulty in assembly and welding and the like, the embodiment introduces the direct-current charging interface which can reduce the difficulty in assembly and welding and fully utilize the inner space of the connector on the basis of ensuring the effective creepage distance between terminals of different types.
A dc charging interface of the present embodiment, with reference to fig. 1 to 3, includes an insulating main body 1, a positive terminal 5, a negative terminal 4, and a signal terminal 3.
Referring to fig. 5, the insulating body 1 is cylindrical, and has a first socket 12 at its axial center and a second socket 13 at its outer periphery; one end of the positive terminal 5 penetrates into the first slot, and the other end extends towards the tail end of the insulating main body 1; the negative terminal 4 is provided on the outer periphery of the positive terminal 5, and the signal terminal 3 is inserted into the peripheral edge of the insulating body 1.
The inner ring side wall and the outer ring side wall of the second receiving slot are respectively provided with a contact opening corresponding to the negative terminal 4 and the signal terminal 3, and the negative terminal and the signal terminal are respectively provided with an elastic protruding part, such as the signal terminal 3 is provided with an elastic protruding part 31; under the action of no external force, the elastic protruding parts of the negative terminal and the signal terminal respectively extend into the second connecting slot from the corresponding contact ports.
Referring to fig. 2, the negative terminal 4 includes a cable connection end 41, an annular connection portion 42, and a plurality of plug ends 43, one end of the cable connection end is connected to one side of the annular connection portion, and the plurality of plug ends are distributed and connected to the other side circumference portion of the annular connection portion.
With reference to fig. 1 to 3, the number of the signal terminals 3 may be implemented as a plurality, and a plurality of the signal terminals and a plurality of the plug terminals of the negative terminal are arranged at intervals, so that all the plug terminals of each signal terminal and the negative terminal are not located on the same radius line of the insulating main body.
In the present embodiment shown in fig. 3, the number of the plug terminals in the negative terminal is 4, the annular connecting portion is a regular octagon, and the 4 plug terminals are uniformly distributed and connected to 4 edges of the annular connecting portion; each signal terminal is arranged opposite to one side of the annular connecting part which is not connected with the plug end. And the connection line of each signal terminal and the axis of the insulating main body passes through the middle point of the side which is not connected with the plug end in the annular connecting part. That is to say, as shown in fig. 3, each signal terminal and the adjacent negative terminal are the design of 45 degrees of inclination relative to the axial center of the insulating main body, the structural consistency is better, the assembly welding is more convenient, and simultaneously, the signal transmission reliability is better guaranteed.
With reference to fig. 2 and 3, the positive terminal 5 includes a plug end 51 and a cable connection end 52, and the plug end of the positive terminal is inserted into the first plug slot; the plug end of the positive terminal is a hollow cone, and at least two notches 53 extending along the axial direction of the positive terminal are arranged on the circumference of the plug end. This makes the spigot of the positive terminal can cooperate with the pin of the male seat to the effective electrical connection is realized to the elastic clamping pin.
Referring to fig. 1 and 4, the outer periphery of the insulating main body 1 is provided with a thread 11, the thread is sleeved with an elastic rubber ring 2 and is screwed with a nut 7, so that the connector and the shell and other structures can be conveniently connected and fixed.
Example 2
Considering the creepage distances between different types of terminals, on the basis of embodiment 1, this embodiment introduces a dc charging interface capable of increasing the creepage distance.
As shown in fig. 5, the end face of the tail end of the insulating body between the positive terminal 5 and the negative terminal 4 has at least one protrusion or at least one depression; at least one protruding part or depressed part is arranged on the end face of the tail end of the insulating main body between the negative terminal and the signal terminal.
The end face of the tail end of the insulating main body between the positive terminal and the negative terminal and between the negative terminal and the signal terminal can be implemented in a convex arc shape, a concave arc shape, a wave shape or a step shape. Other surface shapes that increase surface area may of course be chosen to achieve an increase in creepage distance.
As shown in fig. 5, in the present embodiment, the end surface of the tail end of the insulating body between the positive terminal and the negative terminal is stepped, and has a first protrusion 61 with multiple steps. The end face of the tail end of the insulating body between the negative terminal and the signal terminal is implemented with a second projection 62 having a multi-step shape.
The design of the shape of the insulating end face in the embodiment can increase the creepage distance between terminals of different types, can meet the standard requirement, and ensures the use safety.
With reference to fig. 1, fig. 2 and fig. 5, the dc charging interface of the present embodiment further includes an insulating rear cover 6, the insulating rear cover 6 is fixedly installed inside the tail end of the insulating main body 1, and the insulating rear cover 6 is matched with the shape of the inner end surface of the tail end of the insulating main body 1. Lid 6 sets up one and prevents slow-witted corner cut 63 and be convenient for rapid Assembly after insulating, and it can adopt the PBT material to pass through the mode of moulding plastics, and this lid can realize effectively fixing each terminal in insulating main part tail end department after insulating.
In summary, according to the embodiment of the utility model, on one hand, the space in the insulating main body can be utilized to the maximum, the assembly and welding difficulty is greatly reduced, the signal interference is reduced, the electric connection performance of the direct current charging interface is improved, the influence on the charging control process is reduced, and the production efficiency of the connector is improved. On the other hand, the creepage distance between the positive terminal and the negative terminal can be increased, so that the standard requirements are met, and the use safety is guaranteed. Similarly, the creepage distance between the negative terminal and the signal terminal can be increased in this way, and signal interference can be reduced.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A direct current charging interface is characterized by comprising an insulating main body, a positive terminal, a negative terminal and a signal terminal;
the insulating main body is cylindrical, a first inserting groove is formed in the shaft center of the insulating main body, and a second inserting groove is formed in the periphery of the first inserting groove; one end of the positive terminal penetrates into the first slot, and the other end of the positive terminal extends towards the tail end of the insulating main body; the negative terminal is arranged on the periphery of the positive terminal, and the signal terminal is arranged on the periphery of the edge of the insulating main body in a penetrating manner;
the negative terminal includes a plurality of spigot ends that connect, and signal terminal's quantity is a plurality of, and a plurality of signal terminals and negative terminal connect the interval setting between the spigot for each signal terminal does not all connect spigot all to connect on the same radius line of insulating main part with the negative terminal.
2. The dc charging interface of claim 1, wherein the negative terminal further comprises a cable connection terminal and an annular connection portion, one end of the cable connection terminal is connected to one side of the annular connection portion, and the plurality of connector terminals are distributed and connected to the other side of the annular connection portion.
3. The direct current charging interface according to claim 2, wherein the number of the plug terminals in the negative terminal is 4, the annular connecting portion is a regular octagon, and the 4 plug terminals are uniformly distributed and connected to 4 edges of the annular connecting portion;
each signal terminal is arranged opposite to one side of the annular connecting part which is not connected with the plug end.
4. The dc charging interface of claim 3, wherein the connection line between each signal terminal and the axis of the insulating body passes through a midpoint of a side of the annular connecting portion to which the socket terminal is not connected.
5. The direct current charging interface according to claim 1, wherein the inner ring side wall and the outer ring side wall of the second receiving slot are respectively provided with contact ports corresponding to the negative terminal and the signal terminal, and the negative terminal and the signal terminal are respectively provided with an elastic protrusion; under the action of no external force, the elastic protruding parts of the negative terminal and the signal terminal respectively extend into the second connecting slot from the corresponding contact ports;
the positive terminal comprises a plug end and a cable connecting end, and the plug end of the positive terminal penetrates into the first plug slot; the plug end of the positive terminal is in a hollow conical shape, and at least two notches extending along the axial direction of the positive terminal are arranged in the circumferential direction of the plug end.
6. The DC charging interface according to claim 1, wherein the insulating body has a screw thread formed on an outer circumferential portion thereof, and the screw thread is provided with an elastic rubber ring and a nut.
7. The direct current charging interface according to claim 1, wherein the end face of the tail end of the insulating body between the positive terminal and the negative terminal and between the negative terminal and the signal terminal is respectively provided with at least one protrusion or at least one depression.
8. The DC charging interface according to claim 7, wherein the end surface of the tail end of the insulating main body between the positive terminal and the negative terminal and between the negative terminal and the signal terminal is convex arc, concave arc, wave or step.
9. The DC charging interface according to claim 7 or 8, further comprising an insulating rear cover, wherein the insulating rear cover is fixedly installed inside the tail end of the insulating main body, and the insulating rear cover is matched with the shape of the inner end face of the tail end of the insulating main body.
10. The DC charging interface of claim 9, wherein the insulating rear cover is injection molded from PBT and has a foolproof cut angle.
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CN202122568345.5U CN216214283U (en) | 2021-10-25 | 2021-10-25 | Direct current interface that charges |
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CN202122568345.5U CN216214283U (en) | 2021-10-25 | 2021-10-25 | Direct current interface that charges |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114006203A (en) * | 2021-10-25 | 2022-02-01 | 科信成精密技术(江苏)有限公司 | Direct current charging connector suitable for large current |
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2021
- 2021-10-25 CN CN202122568345.5U patent/CN216214283U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114006203A (en) * | 2021-10-25 | 2022-02-01 | 科信成精密技术(江苏)有限公司 | Direct current charging connector suitable for large current |
CN114006203B (en) * | 2021-10-25 | 2024-06-14 | 科信成精密技术(江苏)有限公司 | Direct current charging connector suitable for heavy current |
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