Dual charging extension cable with interchangeable charging plugs

Abstract

Dual charging extension cable with interchangeable charging plugs, comprising a plug body (100), wherein the plug body (100) comprises the plug body at the column-side end (101) and the plug body at the vehicle-side end (102), characterized in that a detachable connection exists between the plug body at the column-side end (101) and the plug body at the vehicle-side end (102), a plug connection (1) is arranged at the rear end of the plug body at the column-side end (101) and a socket connection (2) is arranged at the rear end of the plug body at the vehicle-side end (102), wherein the plug connection (1) and the socket connection (2) are complementary to each other and the plug body at the column-side end (101) and the plug body at the vehicle-side end (102) are connected and fixed by the plug connection (1) and the socket connection (2).

Description

[0001] The present invention relates to a double charging extension cable with interchangeable charging plugs.

[0002] The unique feature of the dual charging connector for new energy vehicles is that a single power cable integrates two connector heads – the charging station end and the vehicle end – each connecting to the charging station housing and the vehicle, respectively, allowing for greater flexibility in adapting to different charging scenarios. The vehicle-side charging connector head is primarily divided into three types: Type 1, Type 2, and GB / T, also known as the US standard, EU standard, and Chinese standard. The standards for the charging interfaces used to connect the charging station end vary by country and region. However, currently available dual charging connectors have a fixed design, which makes it difficult to adapt them to the different interface types of the charging station and the vehicle socket.

[0003] The present invention provides a dual charging extension cable with interchangeable charging plugs according to claim 1. Advantageous embodiments are described in the dependent claims.

[0004] The present invention proposes the following technical solution to solve the above-mentioned technical problem:

[0005] Dual charging extension cable with interchangeable charging plugs, comprising a plug body, wherein the plug body comprises the plug body at the column-side end and the plug body at the vehicle-side end, characterized in that a detachable connection exists between the plug body at the column-side end and the plug body at the vehicle-side end, a plug connection is arranged at the rear end of the plug body at the column-side end and a socket connection is arranged at the rear end of the plug body at the vehicle-side end, wherein the plug connection and the socket connection are complementary to each other and the plug body at the column-side end and the plug body at the vehicle-side end are connected and fixed by the plug connection and the socket connection.

[0006] The cable length between the connector body at the column-side end and the connector body at the vehicle-side end can be adjusted as required.

[0007] The plug connection comprises an annular outer wall, wherein an annular locking chamber is located on the inside of the outer wall, in the interior of which a plug is arranged; a snap lock is provided on the outer wall; the socket connection comprises a locking chamber wall corresponding to the locking chamber, on the inside of which there is a first cavity that fits the plug; a circumferential locking groove is provided at the lower outer end of the locking chamber wall, which interacts with the snap lock.

[0008] The outermost side of the bushing connection is provided with a sliding sleeve; a second cavity is provided between the sliding sleeve and the locking chamber wall, which interacts with the outer wall; the sliding sleeve is displaceable rearward relative to the locking chamber wall; a projecting wall is provided on the lower inner edge of the sliding sleeve, which, in the normal position of the sliding sleeve, is opposite the locking groove; when the sliding sleeve is displaced rearward, the projecting wall moves relative to the underside of the locking groove.

[0009] On the inside of the outer wall are several positioning grooves that are connected to the locking chamber; on the outside of the locking chamber wall are several outwardly projecting positioning blocks that fit together with the positioning grooves.

[0010] The connector comprises the first contact pin chamber and several second contact pin chambers; the first cavity comprises the first contact pin carrier and the second contact pin carrier, which cooperate with the first contact pin chamber and the second contact pin chambers, respectively.

[0011] The second contact pin chambers are arranged at regular intervals around the first contact pin chamber, positive contact pins are arranged in the first contact pin chamber and negative contact pins are arranged in the second contact pin chambers, and the first contact pin carrier and the second contact pin carrier each have contact pin openings.

[0012] The snap closure comprises an annular passage through the outer wall in which a ball is arranged, the openings of the passage at both ends being smaller than the balls, the balls being able to partially protrude from the passage but not to completely leave it, and the ball diameters being larger than the length of the passage.

[0013] The locking groove is located at the lower end of the positioning block.

[0014] The charging plug head of the plug body at the vehicle-side end can be EU standard, US standard or Chinese standard.

[0015] In comparison to the prior art, the dual charging extension cable with interchangeable charging plugs of the present invention is characterized in that a plug connection is arranged at the rear end of the plug body at the charging station end, and a socket connection is arranged at the rear end of the plug body at the vehicle end. The detachable connection between the plug connection and the socket connection creates a detachable connection between the plug body at the charging station end and the plug body at the vehicle end. The plug heads of the plug body at the charging station end and the plug body at the vehicle end can conform to EU standard, US standard, or Chinese standard.Depending on the vehicle's socket type and the charger's output interface type, the corresponding plug body at the vehicle-side end is combined with the plug body at the column-side end to allow any combination of the plug body at the column-side end and the plug body at the vehicle-side end according to various standards. Fig. Figure 1 is a schematic representation of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 2 is a schematic representation of the plug body at the column-side end of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 3 is a schematic representation of the plug body at the vehicle-side end of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 4 is an enlarged representation of area A in Fig. 2 of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 5 is a schematic representation of the plug connection of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 6 is a first schematic representation of the socket connection of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 7 is a second schematic representation of the socket connection of the double charging extension cable with interchangeable charging plugs according to the present invention. Fig. Figure 8 is an enlarged representation of area B in Fig. 7 of the double charging extension cable with interchangeable charging plugs according to the present invention.

[0016] The present invention is described in detail below with reference to the accompanying drawings and an exemplary embodiment.

[0017] As in the Fig. As shown in Figures 1 to 8, the double charging extension cable with interchangeable charging plugs comprises a plug body 100, which consists of the plug body at the charging station end 101 and the plug body at the vehicle end 102. The plug body at the charging station end 101 is used to connect to the charging station, and the plug body at the vehicle end 102 is used to connect to the charging socket at the vehicle end. A detachable connection exists between the plug body at the charging station end 101 and the plug body at the vehicle end 102, and the cable length between them can be adjusted as needed.

[0018] At the rear end of the connector body at the column-side end 101, a plug connection 1 is arranged, and at the rear end of the connector body at the vehicle-side end 102, a socket connection 2 is arranged. The plug connection 1 and the socket connection 2 are designed to be complementary to each other, so that the connector body at the column-side end 101 and the connector body at the vehicle-side end 102 are connected and fixed by the connection of plug connection 1 and socket connection 2.

[0019] The connector 1 comprises an annular outer wall 11, on the inside of which an annular locking chamber 111 is provided. Furthermore, several positioning grooves 112 are arranged at intervals on the inside of the outer wall 11, which are connected to the locking chamber 111. On the inside of the locking chamber 111 is a connector 12, which comprises a first contact pin chamber 121 and several second contact pin chambers 122. The second contact pin chambers 122 are arranged in a ring around the first contact pin chamber 121. A positive terminal contact pin is inserted in the first contact pin chamber 121, and a negative terminal contact pin is inserted in each of the second contact pin chambers 122.

[0020] A snap closure 13 is provided on the outer wall 11, which includes an annular passage 131 extending through the outer wall 11. A ball 132 is arranged in this passage. The two ends of the passage 131 have a smaller diameter than the ball 132, so that the ball protrudes partially but cannot fully exit. The diameter of the ball 132 is larger than the length of the passage 131.

[0021] The bushing connection 2 comprises a locking chamber wall 22 corresponding to the locking chamber 111, on the outside of which several outwardly projecting positioning blocks 221 are arranged at intervals, which cooperate with the positioning grooves 112.

[0022] A first cavity 23 is arranged on the inside of the locking chamber wall 22, which interacts with the connector 12. Inside the first cavity 23, a first contact pin carrier 231 and a second contact pin carrier 232 are provided, each interacting with the first contact pin chamber 121 and the second contact pin chamber 122, respectively. Contact pin openings are provided in both the first contact pin carrier 231 and the second contact pin carrier 232.

[0023] An annular locking groove 222 is formed at the lower outer edge of the locking chamber wall 22, which interacts with the snap lock 13. The locking groove 222 is located below the positioning block 221. The outermost component of the bushing connection 2 is a sliding sleeve 21. A second cavity 24, corresponding to the outer wall 11, is provided between the sliding sleeve 21 and the locking chamber wall 22. The sliding sleeve 21 is displaceable rearward relative to the locking chamber wall 22. A projecting wall 211 is located on the lower inner wall of the sliding sleeve 21, which, in its normal state, faces the locking groove 222. When the sliding sleeve 21 is pushed back, the projecting wall 211 moves relative to the underside of the locking groove 222.

[0024] The locking and unlocking process between the connector body at the column-side end 101 and the connector body at the vehicle-side end 102 is as follows: First, the positioning grooves 112 of the connector 1 are aligned with the positioning blocks 221 of the socket 2. Then, the socket 2 is inserted into the connector 1. When the ball 132 is opposite the projecting wall 211, the projecting wall 211 presses the ball 132 inwards. Further insertion brings the ball 132 into the locking groove 222. As the projecting wall 211 continues to press the ball 132 inwards, it is secured in the locking groove 222, thus locking the connector 1 and the socket 2. To unlock, the sliding sleeve 21 is pushed backwards, so that the protruding wall 211 no longer pushes the ball 132 inwards.With the aid of external force, the ball 132 can be pulled out of the locking groove 222, thereby separating plug connection 1 and socket connection 2.

[0025] The charging plug head of the connector body at the charging station end 101 can be EU standard, US standard, or Chinese standard. Similarly, the charging plug head of the connector body at the vehicle-side end 102 can be EU standard, US standard, or Chinese standard. Through the mutual connection of plug connection 1 and socket connection 2, the corresponding connector body at the vehicle-side end 102 can be combined with the connector body at the charging station end 101, according to the vehicle socket type and the charging station output interface type, to allow for the pairing of plug heads of different standards, enabling the user to exchange them as needed.

[0026] The dual charging extension cable with interchangeable charging plugs of the present invention achieves the detachable connection between the plug body at the charging station end 101 and the plug body at the vehicle end 102 by arranging the plug connection 1 at the rear end of the plug body at the charging station end 101 and the socket connection 2 at the rear end of the plug body at the vehicle end 102. The charging plug heads can be EU standard, US standard, or Chinese standard. Depending on the socket type of the vehicle and the output interface type of the charging station, the corresponding plug body at the vehicle end 102 is combined with the plug body at the charging station end 101 to allow a pairing of any standard between the plug body at the charging station end 101 and the plug body at the vehicle end 102.

[0027] Finally, it should be noted that the above embodiment merely illustrates the technical solution of the present invention and does not constitute a limitation thereof. Although the technical solution of the present invention has been described in detail with reference to the above embodiment, it is understandable to those skilled in the art that further modifications or equivalent substitutions of individual features may be made.

Claims

[1] Double charging extension cable with interchangeable charging plugs, comprising a plug body (100), wherein the plug body (100) comprises the plug body at the column end (101) and the plug body at the vehicle end (102), characterized by , that a detachable connection exists between the plug body at the column-side end (101) and the plug body at the vehicle-side end (102), a plug connection (1) is arranged at the rear end of the plug body at the column-side end (101) and a socket connection (2) is arranged at the rear end of the plug body at the vehicle-side end (102), wherein the plug connection (1) and the socket connection (2) are complementary to each other and the plug body at the column-side end (101) and the plug body at the vehicle-side end (102) are connected and fixed by the plug connection (1) and the socket connection (2). [2] Dual charging extension cable with interchangeable charging plugs according to claim 1, characterized by , that the cable length between the connector body at the column-side end (101) and the connector body at the vehicle-side end (102) can be adjusted as required. [3] Dual charging extension cable with interchangeable charging plugs according to one of the preceding claims, characterized by, that the plug connection (1) comprises an annular outer wall (11) wherein an annular locking chamber (111) is located on the inside of the outer wall (11), in the interior of which a plug (12) is arranged; a snap lock (13) is provided on the outer wall (11); the socket connection (2) comprises a locking chamber wall (22) corresponding to the locking chamber (111), on the inside of which a first cavity (23) is located which fits together with the plug (12); at the lower outer end of the locking chamber wall (22) a circumferential locking groove (222) is provided which cooperates with the snap lock (13). [4] Dual charging extension cable with interchangeable charging plugs according to claim 3, characterized by, that the outermost side of the bushing connection (2) is provided with a sliding sleeve (21); a second cavity (24) is provided between the sliding sleeve (21) and the locking chamber wall (22), which interacts with the outer wall (11); the sliding sleeve (21) is displaceable rearward relative to the locking chamber wall (22); a projecting wall (211) is provided at the lower inner edge of the sliding sleeve (21), which, in the normal position of the sliding sleeve (21), is opposite the locking groove (222); when the sliding sleeve (21) is displaced rearward, the projecting wall (211) moves relative to the underside of the locking groove (222). [5] Dual charging extension cable with interchangeable charging plugs according to claim 3 or 4, characterized by, that on the inside of the outer wall (11) there are several positioning grooves (112) which are connected to the locking chamber (111); on the outside of the locking chamber wall (22) there are several outwardly projecting positioning blocks (221) which fit together with the positioning grooves (112). [6] Dual charging extension cable with interchangeable charging plugs according to any one of the preceding claims 3 to 5, characterized by , that the plug (12) comprises the first contact pin chamber (121) and several second contact pin chambers (122); the first cavity (23) comprises the first contact pin carrier (231) and the second contact pin carrier (232) which cooperate with the first contact pin chamber (121) and the second contact pin chambers (122), respectively. [7] Dual charging extension cable with interchangeable charging plugs according to any one of the preceding claims 3 to 6, characterized by, that the second contact pin chambers (122) are arranged at regular intervals around the first contact pin chamber (121), that positive contact pins are arranged in the first contact pin chamber (121) and negative contact pins are arranged in the second contact pin chambers (122), and that the first contact pin carrier (231) and the second contact pin carrier (232) each have contact pin openings. [8] Dual charging extension cable with interchangeable charging plugs according to any one of the preceding claims 3 to 7, characterized by , that the snap closure (13) comprises an annular passage (131) through the outer wall (11) in which a ball (132) is arranged, wherein the passage openings at both ends are smaller than the balls (132), the balls (132) can partially protrude from the passage (131) but cannot completely leave it, and the ball diameters are larger than the length of the passage (131). [9] Dual charging extension cable with interchangeable charging plugs according to any one of the preceding claims 3 to 8, characterized by , that the locking groove (222) is located at the lower end of the positioning block (221). [10] Dual charging extension cable with interchangeable charging plugs according to any one of claims 1 to 9, characterized by , that the charging plug head of the plug body at the vehicle-side end (102) may be EU standard, US standard or China standard.

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