CN114865384A

CN114865384A - A rotation type shield and electric automobile for electric automobile charging socket

Info

Publication number: CN114865384A
Application number: CN202210643614.6A
Authority: CN
Inventors: 程明
Original assignee: Mercedes Benz Group AG
Current assignee: Mercedes Benz Group AG
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-08-05
Also published as: DE102023002265A1

Abstract

The invention relates to a rotary dust cover for an electric vehicle charging socket, which comprises: the sealing ring comprises a rotating ring and a fixed ring, wherein the rotating ring can rotate between an open socket position and a closed socket position relative to the fixed ring, and a sealing element made of flexible materials is connected between the fixed ring and the rotating ring and can generate torsion when the rotating ring rotates between the open socket position and the closed socket position relative to the fixed ring, wherein the fixed ring is configured into a circular peripheral wall, the rotating ring surrounds the circular peripheral wall, the sealing element closes an opening surrounded by the fixed ring in a torsion state of the sealing element, and the sealing element opens the opening in a non-torsion state of the sealing element. The invention also relates to an electric automobile with the rotary dustproof cover, wherein the rotary dustproof cover is used for closing and opening a charging socket of the electric automobile.

Description

A rotation type shield and electric automobile for electric automobile charging socket

Technical Field

The invention relates to a rotary dust cover for an electric vehicle charging socket, which comprises: the sealing ring comprises a rotating ring, a fixed ring and a sealing element made of flexible materials, wherein the sealing element is connected between the fixed ring and the rotating ring and can generate torsion when the rotating ring rotates relative to the fixed ring, the sealing element closes an opening surrounded by the fixed ring in a torsion state of the sealing element, and the sealing element opens the opening in a non-torsion state of the sealing element. The invention also relates to an electric automobile with the rotary dustproof cover, wherein the rotary dustproof cover is used for closing and opening a charging socket of the electric automobile.

Background

In an electric vehicle, if an inner lid of a charging socket is manually turned over, when charging is completed and a charging gun is pulled out, if the inner lid is forgotten to be closed, the inner lid collides with an outer lid when the outer lid is closed.

In addition, in the conventional petal-type opening vehicle charging port system, the petal-type opening mechanism is composed of a plurality of cover plates, a moving bracket, a rotating bracket and a driving member, and has a relatively complicated structure, and the plurality of cover plates are rigid members having a gap therebetween in a closed state, thereby having poor waterproofness.

Disclosure of Invention

The present invention is directed to the above problems, and provides a rotary dust cap for a charging socket of an electric vehicle, in which an inner cap of the charging socket is particularly configured as the rotary dust cap, so that an outer cap can be normally closed without closing the inner cap.

According to the invention, the rotary dustproof cover for the charging socket of the electric automobile is provided with:

-a rotating ring and a stationary ring, the rotating ring being rotatable relative to the stationary ring between an open socket position and a closed socket position, and

-a seal made of flexible elastic material, connected between the fixed ring and the rotating ring and able to twist when the rotating ring rotates with respect to the fixed ring between an open socket position and a closed socket position.

In the rotary dust cap according to the invention, the securing ring is in particular designed as a circular circumferential wall, in particular as a sleeve, which encloses an opening in which a charging socket of the electric vehicle is arranged. The end of the sleeve has a free edge bounding the opening. The rotating ring surrounds the circular peripheral wall.

Within the framework of the invention, the seal is preferably configured in the shape of a sleeve, which is present in particular in the open socket position of the swivel ring.

In the rotary dust cap according to the present invention, the seal closes the opening surrounded by the fixed ring in a twisted state of the seal, and the seal opens the opening in a non-twisted state of the seal.

Preferably, the fastening ring is formed integrally with and/or forms a housing of a charging socket of an electric vehicle.

According to a preferred embodiment of the rotary type dust cover of the present invention, one of the fixing ring and the rotating ring comprises:

-a chute, a first end of said chute being located at a first axial distance from said opening and a second end of said chute being located at a second axial distance from said opening, said first axial distance being greater than said second axial distance;

-a circumferential groove, one end of which communicates with the second end of the chute;

the other of the fixed ring and the rotary ring includes a projection that is capable of protruding into and sliding in the diagonal groove and the circumferential groove, and the projection causes the rotary ring to approach or separate from the opening in the axial direction upon movement in the diagonal groove.

According to a preferred embodiment of the rotary dust cap of the present invention, the rotary ring is axially close to the opening when the rotary ring is rotated from the open socket position to the closed socket position; the swivel ring is axially spaced from the opening when the swivel ring is rotated from the closed socket position to the open socket position.

It is particularly preferred that the circumferential groove has a recess at its end remote from the angled groove, which recess is able to receive a corresponding projection in the fully twisted state of the seal (i.e. in the state in which the socket is closed), so that the rotary ring can be positioned in the closed socket position.

It is particularly preferred that in the open, inserted position of the rotary ring, the seal extends along the inner surface of the stationary ring to the free edge of the stationary ring and continues to the outer surface of the stationary ring, and then connects with the rotary ring, whereby a non-twisted state of the seal is established. That is to say that the seal assumes the shape of a sleeve in the open socket position of the rotary ring and is formed at least partially as a double-layered sleeve in the axial direction.

It is particularly preferred that, when the rotating ring is rotated from the open socket position to the closed socket position, the rotating ring approaches the opening in the axial direction, whereupon the seal is transferred from the non-twisted state to the twisted state, in which transfer the seal portion present on the inner surface of the fixed ring and the seal portion passing the free edge of the fixed ring are retracted towards the centre of the fixed ring, thereby closing the socket. This is because the rotating ring is axially close to the opening, so that the seal is pressed in the axial direction but twisted in the circumferential direction, thereby being retracted toward the center of the stationary ring. When the rotating ring is rotated from the closed socket position to the open socket position, the rotating ring is axially spaced from the opening, the seal is then rotated in the circumferential direction from the twisted state to the untwisted state, but is no longer axially compressed, and the portion of the seal that is retracted toward the center of the stationary ring again bears against the inner surface of the stationary ring and against the free edge of the stationary ring, thereby opening the socket.

By the above-described construction of the circumferential groove, the oblique groove and the projection, a guided movement of the rotary ring relative to the stationary ring is provided.

According to a preferred embodiment of the rotary dust cap of the present invention, the rotary dust cap has two sets of protrusions and grooves, a first protrusion, a second protrusion, a first groove and a second groove, which are opposed to each other on the periphery thereof, wherein the first groove includes a first diagonal groove and a first circumferential groove, and the second groove includes a second diagonal groove and a second circumferential groove. "opposite" means in particular that the two sets of projections and recesses are arranged symmetrically with respect to a diameter of the rotating ring and of the stationary ring. This enables the rotating ring to be guided well and not to be easily jammed.

According to a preferred embodiment of the rotary dust cap of the present invention, the first projection and the second recess are disposed on the rotary ring, the second projection and the first recess are disposed on the stationary ring, the first projection is engaged with the first recess, and the second projection is engaged with the second recess.

It should be understood that the terms "first," "second," and the like are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

According to a preferred embodiment of the rotary dust cap according to the invention, the first and second grooves each have an inlet opening from the free rim of the rotary ring or the stationary ring to the first end of the chute. The inlet is for engagement of the projection into the recess. Particularly preferably, the inlet has a width that gradually increases towards the free edge. Such a configuration can be such that the protrusion easily enters from the inlet into the first end of the chute of the recess.

According to a preferred embodiment of the rotary dust cap according to the invention, the inlet communicates with the first end of the chute via an intermediate channel.

According to a preferred embodiment of the rotary dust cap according to the present invention, the sealing member is configured as a silicone film. The silicone membrane has good flexibility and elasticity, enabling good sealing of the socket.

According to another aspect of the present invention, an electric vehicle is provided, which has a rotary dustproof cover according to any one of the above embodiments of the present invention, and the rotary dustproof cover is used for closing and opening a charging socket of the electric vehicle.

It is to be understood that the above-described features of the present invention can be implemented individually or in combination without being limited to the combinations enumerated in the specification, and that meaningful embodiments resulting from combining one or any of the above-described features of the present invention are also included in the scope of the present disclosure.

Drawings

The following schematically illustrates a rotary dust cap for an electric vehicle charging socket according to the present invention by way of example.

Fig. 1 shows a preferred embodiment of a rotary dust cap according to the present invention, in which a closed receptacle state, an open receptacle process, and an open receptacle state are shown from left to right, respectively.

Figure 2 shows an expanded view of a set of grooves.

Detailed Description

In the exemplary embodiment, only one preferred embodiment of the rotary dust cap according to the present invention is shown, which does not mean that there is a limitation to the rotary dust cap according to the present invention, but rather that a preferred embodiment is enumerated for the purpose of illustrating the technical solution.

Fig. 1 shows a preferred embodiment of a rotary dust cap according to the invention, in which the securing ring 3 is configured as a circular circumferential wall, in particular as a sleeve, which encloses an opening in which a charging socket of an electric vehicle is arranged. The end of the sleeve has a free edge bounding the opening. The rotating ring 1 surrounds the circular circumferential wall.

As can be seen in particular from fig. 1, the closed socket state, the open socket process and the open socket state are shown from left to right, respectively. In particular, as can be seen from the left hand side of fig. 1, the seal 2 closes the opening formed by the stationary ring 3, while the rotating ring 1 is located close to said opening; as can be seen from the middle view in fig. 1, the seal 2 opens the opening, but not completely, after the rotating ring 1 has been rotated counterclockwise by a certain angle; as can be seen from the right in fig. 1, the rotating ring 1 is located away from the opening while the seal 2 fully opens the opening formed by the stationary part 3.

In a preferred embodiment of the invention, the sealing element 2 is made of a flexible, elastic material, said sealing element 2 being constructed in particular as a silicone membrane, since silicone membranes have good flexibility and elasticity. The seal 2 is connected between the stationary ring 3 and the rotating ring 1 and can be twisted when the rotating ring 1 is rotated relative to the stationary ring 3 between an open socket position 4 and a closed socket position 5. The open socket position 4 and the closed socket position 5 are seen in particular in the development of the groove formed by the circumferential groove 9 and the diagonal groove 6 shown in fig. 2.

Within the framework of the invention, the seal 2 is configured in the shape of a sleeve, which is present in particular in the open socket position 4 of the rotary ring 1, see in particular the right-hand drawing of fig. 1. In the twisted state of the seal 2 (left view in fig. 1), the seal 2 closes the opening enclosed by the fixing ring 3, and in the untwisted state of the seal 2 (right view in fig. 1), the seal 2 opens the opening.

In addition, in a preferred embodiment, the securing ring 3 is configured integrally with and/or constitutes a housing of a charging socket of an electric vehicle.

Fig. 2 shows an expanded view of a set of grooves, wherein the grooves comprise a chute 6 and a circumferential groove 9, which are provided on one of the stationary ring 3 and the rotating ring 1.

As can be seen from fig. 2, the first end 7 of the chute 6 is located at a first axial distance from the opening (the position of the opening is not shown in fig. 2) and the second end 8 of the chute 6 is located at a second axial distance from said opening, the first axial distance being greater than the second axial distance. In the orientation shown in fig. 2, the opening is located above. As can also be seen from fig. 2, one end of the circumferential groove 9 communicates with the second end 8 of the chute 6.

Not shown in fig. 2, the other of the fixed ring and the rotary ring comprises a projection that can protrude into and slide in the chute 6 and the circumferential groove 9, which projection, upon movement in the chute 6, brings the rotary ring 1 closer to or further from the opening in the axial direction.

According to the preferred embodiment shown in the drawings, when the rotating ring 1 is rotated from the open socket position 4 to the closed socket position 5, the rotating ring 1 is moved axially closer to the opening, i.e. from the first end 7 to the second end 8 in fig. 2, and further towards the end of the circumferential groove 9 remote from the chute 6 (marked 5 in fig. 2). When the rotating ring 1 is rotated from the closed socket position 5 to the open socket position 4, the rotating ring 1 is axially distanced from the opening.

As can be seen from fig. 2, at the end of the circumferential groove 9 remote from the inclined groove 6 there is a notch 12, said notch 12 being able to receive a corresponding projection in the fully twisted state of the seal 2 (i.e. in the state in which the socket is closed) so that the rotary ring 1 can be positioned in the closed socket position 5.

As can also be seen from the right-hand side of fig. 1, in the open socket position 4 of the rotary ring 1, the seal 2 extends along the inner surface of the stationary ring 3 to the free edge of the stationary ring 3 and continues to the outer surface of the stationary ring, and is then connected to the rotary ring 1, whereby the non-twisted state of the seal 2 is established. That is to say, the seal 2 assumes a sleeve-like shape in the open socket position 4 of the rotary ring 1 and is formed at least partially as a double-walled sleeve in the axial direction.

When the rotating ring 1 is rotated from the open socket position 4 to the closed socket position 5, viewed from the right to the left in fig. 1, the rotating ring 1 approaches the opening in the axial direction, at which point the seal 2 is transferred from the non-twisted state to the twisted state, in which transfer the seal portion present on the inner surface of the stationary ring 3 and the seal portion passing the free edge of the stationary ring 3 are retracted towards the center of the stationary ring 3, thereby closing the socket. This is because the rotating ring 1 is close to the opening surrounded by the stationary ring 3 in the axial direction, so that the seal 2 is pressed in the axial direction but twisted in the circumferential direction, thereby being retracted toward the center of the stationary ring 3. When the rotary ring 1 is rotated from the closed socket position 5 into the open socket position 4, the rotary ring 1 is axially moved away from the opening, the seal 2 is then rotated in the circumferential direction from the twisted state into the untwisted state, but is no longer axially compressed, and the seal portion which is retracted towards the center of the stationary ring again bears against the inner surface of the stationary ring 3 and against the free edge of the stationary ring 3, thereby opening the socket.

As can be seen from fig. 1 and 2 and the above description, the seal 2 is capable of opening and closing the receptacle during rotation of the rotating ring 1 relative to the stationary ring 3.

According to a preferred embodiment of the rotary dust cap of the present invention, the rotary dust cap has two sets of protrusions and grooves, a first protrusion, a second protrusion, a first groove and a second groove, which are opposed on a periphery thereof, wherein the first groove includes a first diagonal groove and a first circumferential groove, and the second groove includes a second diagonal groove and a second circumferential groove. "opposite" means in particular that the two sets of projections and recesses are arranged symmetrically with respect to a diameter of the rotating ring and of the stationary ring. This enables the rotating ring to be guided well and not to be easily jammed. It is particularly preferable that the first protrusions and the second grooves are arranged on the rotating ring 1, the second protrusions and the first grooves are arranged on the stationary ring 3, the first protrusions are engaged with the first grooves, and the second protrusions are engaged with the second grooves.

For the sake of simplicity, the first and second grooves are illustrated by the grooves shown in fig. 2, which each have an inlet 10, said inlets 10 leading from the free edge of the rotating ring 1 or the stationary ring 3 to the first end 7 of the chute 6. The inlet 10 is for engagement of the projection into the recess. It can also be seen in fig. 2 that the inlet 10 has a width which gradually increases towards the free edge.

Furthermore, according to the embodiment shown in fig. 2, the inlet 10 is in communication with the first end of the chute 6 via an intermediate channel 11. A step or a suitable stop can also be provided in the intermediate groove 11, so that corresponding projections on the rotary ring 1 or on the stationary ring 3 do not easily reach into the inlet 10, in order to avoid an undesired separation between the rotary ring 1 and the stationary ring 3.

It should be understood that the above-described embodiments of the present invention are intended to be illustrative, but not limiting, and are intended to show exemplary embodiments of a rotary dust cap for an electric vehicle charging receptacle according to the present invention. Rather, in addition to the embodiments described above, a large number of variants which are obvious to the person skilled in the art and which are produced by combining the individual features of the invention are likewise possible.

Claims

1. A rotary dust cap for an electric vehicle charging socket, the dust cap having:

a rotating ring (1) and a stationary ring (3), the rotating ring (1) being rotatable relative to the stationary ring (3) between an open socket position (4) and a closed socket position (5), and

a seal (2) made of a flexible elastic material, said seal (2) being connected between said stationary ring (3) and said rotating ring (1) and being capable of being twisted when said rotating ring (1) is rotated with respect to said stationary ring (3) between an open socket position (4) and a closed socket position (5),

wherein the rotating ring (1) surrounds the stationary ring (3), the seal (2) closes an opening surrounded by the stationary ring (3) in a twisted state of the seal (2), and the seal (2) opens the opening in a non-twisted state of the seal (2).

2. The rotary dust cap according to claim 1, wherein the fixing ring (3) is constructed integrally with and/or constitutes a housing of a charging socket of an electric vehicle.

3. The rotary dust cap according to any of the preceding claims,

wherein one of the stationary ring (3) and the rotating ring (1) comprises:

a chute (6), a first end (7) of said chute (6) being located at a first axial distance from said opening and a second end (8) of said chute being located at a second axial distance from said opening, said first axial distance being greater than said second axial distance;

a circumferential groove (9), one end of said circumferential groove (9) communicating with said second end (8) of said chute (6);

the other of the stationary ring (3) and the rotating ring (1) comprises a protrusion which is able to protrude into and slide in the chute (6) and the circumferential groove (9),

the protrusions move in the chute (6) so that the rotating ring (1) is axially close to or away from the opening.

4. The rotary dust cap according to claim 3,

wherein, when the rotating ring (1) rotates from the open socket position (4) to the closed socket position (5), the rotating ring (1) is close to the opening in the axial direction, and when the rotating ring (1) rotates from the closed socket position (5) to the open socket position (4), the rotating ring (1) is far away from the opening in the axial direction.

5. The rotary dust cap according to claim 3,

the rotary dust cover is provided with two sets of opposite convex parts and grooves on the periphery of the rotary dust cover, namely a first convex part, a second convex part, a first groove and a second groove, wherein the first groove comprises a first inclined groove and a first circumferential groove, and the second groove comprises a second inclined groove and a second circumferential groove.

6. The rotary dust cap according to claim 5,

wherein the first projection and the second groove are arranged on the rotating ring, the second projection and the first groove are arranged on the stationary ring, the first projection is engaged with the first groove, and the second projection is engaged with the second groove.

7. The rotary dust cap according to claim 5,

wherein the first and second grooves each have an inlet (10), the inlets (10) leading from the free rim of the rotating ring (1) or the stationary ring (3) to the first end (7) of the chute (6).

8. The rotary dust cap according to claim 7,

wherein the inlet (10) communicates with the first end (7) of the chute (1) through an intermediate trough (11).

9. The rotary dust cap according to any of the preceding claims,

wherein the seal (2) is configured as a silicone membrane.

10. An electric vehicle having the rotary dust cover according to any one of claims 1 to 9 for closing and opening a charging receptacle of the electric vehicle.