CN212278709U - Shielding grounding assembly and electric vehicle charging system - Google Patents
Shielding grounding assembly and electric vehicle charging system Download PDFInfo
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- CN212278709U CN212278709U CN202020181942.5U CN202020181942U CN212278709U CN 212278709 U CN212278709 U CN 212278709U CN 202020181942 U CN202020181942 U CN 202020181942U CN 212278709 U CN212278709 U CN 212278709U
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Abstract
The utility model relates to the technical field of electric vehicles, in particular to a shielding grounding assembly and an electric vehicle charging system, the shielding grounding assembly is used for connecting a shielding layer of a cable with a distribution box, a charging connection part extending towards the outside of the main body is formed on the main body of the distribution box, a stepped hole communicated with the inside of the main body is formed in the charging connection part, a stepped surface is formed in the stepped hole, the shielding grounding assembly comprises a shielding component, a force application component and an elastic conductive component, and the cable is inserted into the stepped hole of the charging connection part in the state that the shielding grounding assembly is connected with the cable and the distribution box; the cable is all located to shielding component and application of force component cover, and shielding component sets up in the shoulder hole, and application of force component sets up in the connecting portion that charges for elastic conductive component is compressed between the ladder face and the shielding component of the shoulder hole of connecting portion that charges, and above-mentioned structure is difficult for taking place contact instantaneous break and excessive pressure inefficacy.
Description
Technical Field
The application relates to the technical field of electric automobiles, in particular to a shielding grounding assembly and an electric automobile charging system.
Background
At present, electric automobile links to each other through heavy current high voltage cable and high voltage distribution box and charges, in order to promote each electric loop's anti-electromagnetic interference performance, can use shielded cable usually to design the joint that has shielding structure on the cable, realize shielding structure and cable shielding layer's contact, thereby the shielding layer of rethread high voltage cable and the metal casing contact completion shielding ground connection of high voltage distribution box.
Currently, the structural design is different in the market, for example: to fall loudspeaker claw type shell fragment structure embolia on the cable shielding layer, fall loudspeaker claw type shell fragment structure and turn over a book and extend several metal shrapnel for the ring terminal surface orientation is kept away from ring axle center direction, through these shell fragments and the cooperation of high voltage distribution box, realize elastic contact, this structure assembly is not convenient, overvoltage easily takes place in the installation, lead to the contact failure, because the power of applying to the shell fragment during installation is too big promptly, probably lead to this shell fragment to warp to become invalid, can't guarantee it and contact with high voltage distribution box, in addition, only rely on the tip and the high voltage distribution box cooperation contact of claw type shell fragment, especially when the vehicle vibration or assault, the risk that the contact is disconnected suddenly takes place easily, in addition, structural shell fragment design and assembly precision height of requiring, therefore the machining precision is high, and is with high.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a shielding ground subassembly and electric automobile charging system, solved the shielding ground structure that exists among the prior art for example the easy overvoltage failure in the installation of loudspeaker claw type shell fragment to a certain extent, and when the vehicle vibration or assault, take place the technical problem that the contact is disconnected promptly easily.
The application provides a shielding grounding component for connecting a shielding layer of a cable with a distribution box, wherein a charging connecting part extending towards the outside of the main body is formed on the main body of the distribution box, a stepped hole communicated with the inside of the main body is formed in the charging connecting part, and a stepped surface is formed in the stepped hole;
the shield ground assembly includes: a shielding member, a biasing member, and an elastic conductive member;
wherein, in a state that the shielding grounding component connects the cable with the distribution box, the cable is inserted into a stepped hole of a charging connection part of the distribution box;
the shielding component with the application of force component all is located the cable, just the shielding component set up in the shoulder hole, the application of force component set up in the connecting portion that charges makes elasticity conductive member compressed in the ladder face of the shoulder hole of the connecting portion that charges with between the shielding component.
In the above technical solution, the shielding member includes an inner shielding member and an outer shielding member, the inner shielding member is sleeved on the cable, the outer shielding member is sleeved outside the inner shielding member, a gap is formed between the inner shielding member and the outer shielding member, and the gap is used for clamping a shielding layer of the cable;
the elastic conductive component is sleeved outside the outer shielding component and is pressed between the inner shielding component and the stepped surface along the length direction of the cable.
In any of the above technical solutions, further, the inner shielding member includes a first extending portion and a second extending portion connected to each other, wherein the first extending portion is sleeved on the cable and extends along a length direction of the cable; the outer shielding component is sleeved on the first extension part;
the second extending part is also sleeved on the cable and extends along the direction forming an angle with the length direction of the cable; the elastic conductive member is compressed between the second extension part and the stepped surface.
In any of the above technical solutions, further, the force application member is a cover, the shielding ground assembly further includes a sealing member, the sealing member is sleeved on the cable, and the sealing member is located between the inner shielding member and the cover.
In any of the above technical solutions, further, the cover is snapped with the charging connection portion of the distribution box.
In any one of the above technical solutions, further, one of the cover and the charging connection portion of the distribution box is formed with a buckle, and the other is formed with a card slot, and the buckle is adapted to the card slot.
In any of the above technical solutions, further, the elastic conductive member is a spring.
The application also provides an electric automobile charging system, which comprises the shielding grounding component in any technical scheme, so that the shielding grounding component has all beneficial technical effects, and the details are not repeated.
In any of the above technical solutions, further, the shield ground assembly further includes an electric cable and a distribution box; the power distribution box comprises a power distribution box body, a charging connecting part and a step hole, wherein the main body of the power distribution box body is provided with the charging connecting part extending towards the outside of the main body, the charging connecting part is internally provided with the step hole communicated with the inside of the main body, and the step hole is provided with a step surface;
one end of the cable is used for connecting an electric automobile, and the other opposite end of the cable is used for being inserted into a stepped hole of a charging connecting part of the distribution box; under the state that the cable is inserted into a stepped hole of a charging connecting part of the distribution box, the other opposite end of the cable is provided with a metal terminal, and one end of the cable, which is provided with the metal terminal, penetrates through the stepped hole to be connected with the inside of the main body; the shielding grounding component is partially arranged in the stepped hole, and is connected with the shielding cable of the cable and the charging connecting part.
In any of the above technical solutions, further, the shielding member, the elastic member, and the force applying member of the shielding ground assembly are all sleeved on the cable, the shielding member is disposed in the stepped hole, the force applying member is fastened to an end of the charging connecting portion away from the main body of the distribution box, and the elastic member is disposed between the shielding member and the force applying member;
the urging member urges the elastic conductive member to be compressed between a step face of the step hole of the charging connection portion and the shielding member, so that the shielding layer of the cable is connected to the distribution box sequentially through the shielding member and the elastic conductive member.
Compared with the prior art, the beneficial effect of this application is:
the utility model provides a shielding ground subassembly assembles under the state of cable and block terminal, utilize the buckling force of application of force component for example closing cap, make the outside electrically conductive component of establishing of cover of cable contact with the ladder face of the shoulder hole of block terminal, and keep pressure all the time, and then make shielding component and block terminal pass through the electrically conductive component of elasticity and keep indirect contact all the time, and because the electrically conductive component of elasticity has elasticity, even make this contact flexible, even when the vehicle vibration or when assaulting, also can keep the both ends of the electrically conductive component of elasticity all the time to contact with the ladder face and the shielding component of the shoulder hole of block terminal respectively, therefore can not take place the risk that the contact is disconnected promptly.
The application provides an electric automobile charging system, including the aforesaid shielding ground connection subassembly, therefore, the elastic conductor component that shielding cable's outside cover was established can with the ladder face flexible contact of the shoulder hole of block terminal, area of contact has been increased effectively to this structure, has reduced contact resistance simultaneously, and keeps the contact of reliability all the time, has solved the problem that the contact snap brought, and this shielding ground connection subassembly's simple structure, low in manufacturing cost, and the assembly is convenient etc..
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a shielding ground assembly according to an embodiment of the present application;
fig. 2 is an exploded view of a shield-grounding assembly according to an embodiment of the present application;
fig. 3 is a cross-sectional view of an electric vehicle charging system including a shielded ground assembly according to an embodiment of the present application;
fig. 4 is an enlarged schematic view of fig. 3 at a.
Reference numerals:
1-shielding member, 11-inner shielding member, 111-first extension, 112-second extension, 12-outer shielding member, 2-elastic conductive member, 3-cover, 31-card slot, 4-sealing member, 5-cable, 6-distribution box, 61-main body, 62-charging connection portion, 611-stepped hole, 612-stepped surface, 7-metal terminal.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to 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 application can be understood in a specific case by those of ordinary skill in the art.
The following describes a shielded ground assembly and an electric vehicle charging system according to some embodiments of the present application with reference to fig. 1 to 4.
Example one
Referring to fig. 1 to 4, an embodiment of the present application provides a shield ground assembly for connecting a shield layer of an electric cable 5 with a distribution box 6, a main body 61 of the distribution box 6 is formed with a charging connection portion 62 extending toward an outside of the main body 61, a stepped hole 611 communicating with an inside of the main body 61 is opened in the charging connection portion 62, and the stepped hole 611 is formed with a stepped surface 612;
the shielding grounding assembly comprises a shielding component 1, a cover 3 (corresponding to the force application component) and an elastic conductive component 2;
wherein, in the state that the shielding grounding assembly connects the cable 5 and the distribution box 6, the cable 5 is inserted into the stepped hole 611 of the charging connection part 62 of the distribution box 6, and one end of the cable 5 passes through the stepped hole 611 and is located in the main body 61, and the end is connected with the metal terminal 7 for connecting another matched metal terminal 7 in the main body 61;
the shielding component 1 and the cover 3 are both sleeved on the cable 5, the shielding component 1 is arranged in the stepped hole 611, and the cover 3 is buckled at one end of the charging connection part 62 far away from the main body 61 of the distribution box 6;
the cover 3 forces the elastic conductive member 2 to be compressed between the stepped surface 612 of the stepped hole 611 of the charging connection part 62 and the shielding member 1, i.e., one end of the elastic conductive member 2 is in contact with the stepped surface 612 of the stepped hole 611 of the main body 61 and the opposite end of the elastic conductive member 2 is in contact with the shielding member 1, so that the shielding layer of the cable 5 is connected to the distribution box 6 through the shielding member 1 and the elastic conductive member 2 in order.
The shielding ground assembly provided by the embodiment is assembled in the cable 5 and the distribution box 6, the elastic conductive member 2 sleeved outside the cable 5 is in contact with the step surface 612 of the step hole 611 of the main body 61 of the distribution box 6 by using the fastening force of the cover 3, and the pressure is always kept, so that the shielding member 1 and the main body 61 of the distribution box 6 are always in indirect contact through the elastic conductive member 2, and because the elastic conductive member 2 has elasticity, even if the contact is flexible, even if the vehicle vibrates or impacts, the two ends of the elastic conductive member 2 are always respectively in contact with the step surface 612 of the step hole 611 of the main body 61 and the shielding member 1, and therefore the risk of contact instantaneous disconnection does not occur.
In addition, in the assembling process, since the elastic conductive member 2 is always compressed between the stepped surface 612 of the stepped hole 611 and the shielding member 1, as long as the working stroke of the elastic conductive member 2 is designed to be large enough (the structural design is reliable), the situation of overvoltage failure can be effectively avoided, that is, the elastic conductive member 2 cannot fail due to excessive pressure during installation.
Wherein, optionally, the elastic conductive member 2 is a spring, the design and manufacture of the spring are mature, the cost is low, the installation is convenient, and the working stroke can be selected according to the actual requirement, so that the problem of overvoltage failure is not easy to occur.
The urging member is not limited to the cap 3 in the present application, and may have other structures.
Wherein the cable 5 is a prior art high voltage cable and the distribution box 6 is a prior art high voltage distribution box, as will be fully understood by those skilled in the art, and will not be described in detail herein.
In this embodiment, preferably, as shown in fig. 2 and 4, the shielding member 1 includes an inner shielding member 11 and an outer shielding member 12, the inner shielding member 11 is sleeved on the cable 5, the outer shielding member 12 is sleeved outside the inner shielding member 11, and a gap is formed between the inner shielding member 11 and the outer shielding member 12, and the gap is used for sandwiching a shielding layer of the cable 5.
The inner shielding member 11 includes a first extending portion 111 and a second extending portion 112 connected to each other, wherein the first extending portion 111 is sleeved on the cable 5 and extends along the length direction of the cable 5, and the outer shielding member 12 is sleeved outside the first extending portion 111;
the second extending portion 112 is also sleeved on the cable 5 and extends along a direction forming an angle with the length direction of the cable 5, specifically, the extending direction of the second extending portion 112 is perpendicular to the extending direction of the first extending portion 111;
elastic conductive member 2, such as a spring, is compressed between second extension 112 and step surface 612, that is, elastic conductive member 2 can automatically contact step surface 612 of step hole 611 of main body 61 of distribution box 6, and this flexible contact ensures the reliability of contact, solves the problem of contact snap-off under vibration and impact conditions, and has effectively increased contact area through this structure, has reduced contact resistance, and the above-mentioned contact form is not high to the installation accuracy requirement, can effectively avoid the problem of electrical performance and mechanical properties decline that lead to because of problems such as improper installation.
The shielding ground assembly further includes a sealing member 4, the sealing member 4 is sleeved on the cable 5, and the sealing member 4 is located between the inner shielding member 11 and the cover 3, specifically, the sealing member 4 is located between the second extending portion 112 of the inner shielding member 11 and the cover 3, and the sealing member has a sealing function to prevent water leakage.
According to the structure, the shielding grounding component has the advantages of small number of parts, small structural space and simplified assembly process, so that the assembly difficulty of the shielding grounding component, the cable 5 and the distribution box 6 is reduced, the occupied volume is small, and the arrangement of the whole vehicle space is favorable.
In this embodiment, it is preferable that the cover 3 is snap-fitted with the charging connection portion 62 of the distribution box 6.
The outer wall surface of the charging connection part 62 of the distribution box 6 is formed with a buckle, the cover 3 is formed with a card slot 31, and the buckle is matched with the card slot 31.
According to the above-described structure, when the cover 3 is fastened to the end of the charging connection portion 62 of the distribution box 6, the fastening of the charging connection portion 62 is properly fastened to the fastening groove 31 of the cover 3, so that the connection between the cover 3 and the charging connection portion 62 of the distribution box 6 is more stable.
In summary, the elastic conductive wire member sleeved outside the shielding cable can flexibly contact with the stepped surface 612 of the stepped hole 611 of the main body 61 of the distribution box 6, so that the structure effectively increases the contact area, reduces the contact resistance, can always maintain reliable contact, solves the problem caused by instantaneous contact disconnection, and can change the material, size and the like of the shielding member 1 according to the requirement of the contact resistance value. In addition, the shielding grounding assembly is simple in structure, low in manufacturing cost and convenient to assemble, effectively guarantees the electrical performance and the mechanical performance of grounding of the large-current high-voltage shielding cable, and meanwhile increases the reliability and the safety of a high-voltage circuit. In addition, the shielding grounding assembly has the advantages of reduced part number, optimized assembly process, reduced overall space size and favorable space arrangement of the whole vehicle.
Example two
An embodiment of the present application further provides an electric vehicle charging system, including the shielding ground component described in any of the above embodiments, so that all the beneficial technical effects of the apparatus are achieved, and details are not repeated herein.
In this embodiment, preferably, as shown in fig. 3 and 4, the shield ground assembly further includes an electric cable 5 and a distribution box 6; the main body 61 of the distribution box 6 is provided with a charging connecting part 62 extending towards the outside of the main body 61, a stepped hole 611 communicated with the inside of the main body 61 is formed in the charging connecting part 62, and a stepped surface 612 is formed in the stepped hole 611;
one end of the cable 5 is used for connecting the electric vehicle, and the opposite other end of the cable 5 is used for being inserted into the stepped hole 611 of the charging connection part 62 of the distribution box 6; in a state where the cable 5 is inserted into the stepped hole 611 of the charging connection part 62 of the distribution box 6, the opposite other end of the cable 5 is provided with the metal terminal 7, and the end of the cable 5 provided with the metal terminal 7 is connected with the inside of the main body 61 through the stepped hole 611; a part of the shield ground member is disposed in the stepped hole 611, and the shield ground member is connected to the shield cable and the charging connection portion 62 of the cable 5.
Specifically, the shielding member 1, the elastic member and the cover 3 of the shielding grounding assembly are all sleeved on the cable 5, the shielding member 1 is disposed in the stepped hole 611, the cover 3 is buckled at one end of the charging connection portion 62 far away from the main body 61 of the distribution box 6, and the elastic member is disposed between the shielding member 1 and the cover 3;
the cover 3 forces the elastic conductive member 2 to be compressed between the stepped surface 612 of the stepped hole 611 of the charging connection part 62 and the shielding member 1, so that the shielding layer of the cable 5 is connected to the distribution box 6 through the shielding member 1 and the elastic conductive member 2 in order.
According to the structure described above, the elastic lead member sleeved outside the shielded cable can flexibly contact with the stepped surface 612 of the stepped hole 611 of the main body 61 of the distribution box 6, the structure effectively increases the contact area, reduces the contact resistance, and always maintains the reliable contact, thereby solving the problem caused by the contact interruption.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The utility model provides a shielding ground subassembly for the shielding layer and the block terminal of connecting cable, the main part of block terminal is formed with the orientation the charging connection portion that the outside of main part extends, the intercommunication has been seted up to the inside of charging connection portion the shoulder hole of the inside of main part, the shoulder hole is formed with the ladder face, its characterized in that, shielding ground subassembly includes: a shielding member, an elastic conductive member, and a force application member;
wherein, in a state where the shield ground assembly connects the cable and the distribution box, the cable is inserted into a stepped hole of a charging connection portion of the distribution box;
the shielding component with the application of force component all is located the cable, just the shielding component set up in the shoulder hole, the application of force component set up in the connecting portion that charges makes elasticity conductive member compressed in the ladder face of the shoulder hole of the connecting portion that charges with between the shielding component.
2. The shielding grounding assembly of claim 1, wherein the shielding member includes an inner shielding member and an outer shielding member, the inner shielding member is sleeved on the cable, the outer shielding member is sleeved outside the inner shielding member, and a gap is formed between the inner shielding member and the outer shielding member, the gap is used for sandwiching a shielding layer of the cable;
the elastic conductive component is sleeved outside the outer shielding component and is pressed between the inner shielding component and the stepped surface along the length direction of the cable.
3. The shielding grounding assembly of claim 2, wherein the inner shielding member includes a first extension portion and a second extension portion connected to each other, wherein the first extension portion is sleeved on the cable and extends along a length direction of the cable; the outer shielding component is sleeved on the first extension part;
the second extending part is also sleeved on the cable and extends along the direction forming an angle with the length direction of the cable; the elastic conductive member is compressed between the second extension part and the stepped surface.
4. The shielded grounding assembly of claim 2, wherein the force applying member is a cover, the shielded grounding assembly further comprising a sealing member, the sealing member is sleeved on the cable, and the sealing member is located between the inner shielding member and the cover.
5. The shielded grounding assembly of claim 4, wherein the cover is snapped together with the charging connection portion of the distribution box.
6. The shielded grounding assembly of claim 5, wherein one of the cover and the charging connection portion of the distribution box is formed with a snap, and the other is formed with a card slot, the snap fitting with the card slot.
7. The shielded grounding assembly of any one of claims 1 to 6, wherein the resilient conductive member is a spring.
8. An electric vehicle charging system comprising the shielded earth assembly of any one of claims 1 to 7.
9. The electric vehicle charging system of claim 8, wherein the shielded grounding assembly further comprises an electrical cable and a distribution box; the power distribution box comprises a power distribution box body, a charging connecting part and a step hole, wherein the main body of the power distribution box body is provided with the charging connecting part extending towards the outside of the main body, the charging connecting part is internally provided with the step hole communicated with the inside of the main body, and the step hole is provided with a step surface;
one end of the cable is used for connecting an electric automobile, and the other opposite end of the cable is used for being inserted into a stepped hole of a charging connecting part of the distribution box; under the state that the cable is inserted into the stepped hole of the charging connecting part, the other opposite end of the cable is provided with a metal terminal, and one end of the cable, which is provided with the metal terminal, penetrates through the stepped hole to be connected with the terminal inside the main body; the shielding grounding component is partially arranged in the stepped hole, and is connected with the shielding cable of the cable and the charging connecting part.
10. The charging system of claim 9, wherein the shielding member, the elastic member and the force applying member of the shielding grounding assembly are all sleeved on the cable, the shielding member is disposed in the stepped hole, the force applying member is fastened to an end of the charging connection portion away from the main body of the distribution box, and the elastic member is disposed between the shielding member and the force applying member;
the urging member urges the elastic conductive member to be compressed between a step surface of a step hole of the charging connection portion and the shielding member, so that the shielding layer of the cable is connected to the distribution box sequentially through the shielding member and the elastic conductive member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020181942.5U CN212278709U (en) | 2020-02-18 | 2020-02-18 | Shielding grounding assembly and electric vehicle charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020181942.5U CN212278709U (en) | 2020-02-18 | 2020-02-18 | Shielding grounding assembly and electric vehicle charging system |
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| Publication Number | Publication Date |
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| CN212278709U true CN212278709U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020181942.5U Active CN212278709U (en) | 2020-02-18 | 2020-02-18 | Shielding grounding assembly and electric vehicle charging system |
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| CN (1) | CN212278709U (en) |
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