Charging structure with misplug prevention function

Abstract

The utility model discloses a charging structure with an anti-misplug function, the charging structure comprises a plug and a socket, the plug is provided with a plurality of connecting holes, and the socket is provided with insertion columns in the connecting holes; the socket is provided with connecting columns, the connecting columns are in one-to-one correspondence with the connecting holes, the cross section of each connecting column and the cross section of the corresponding connecting hole in the plug are in a shape of a polygon matched with each other, and the connecting columns are inserted through the corresponding connecting holes and clamped to the plug. An electrifying groove is formed in the connecting column, and the inserting column is inserted into the connecting column through the electrifying groove. According to the invention, the use of a non-original charging plug by a user is reduced, so that the battery failure or accident risk is reduced.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicle accessories, in particular to a charging structure with an anti-misplugging function Background Art

[0002] With the increasing awareness of environmental protection and the rapid development of new energy vehicle technology, electric vehicles have become an important part of modern transportation. The popularization of electric vehicles is inseparable from the construction and improvement of their charging infrastructure. As the key interface between electric vehicles and charging equipment, the performance and compatibility of charging plugs and sockets directly affect the charging efficiency and safety of electric vehicles. In the current market, in order to meet the charging needs of electric vehicles of different brands and models, there are a variety of electric vehicle plug and socket systems that are compatible with each other but have different voltage specifications. These systems are designed in accordance with the corresponding international or industry standards to ensure basic electrical connection and signal transmission functions.

[0003] With regard to the above-mentioned related technologies, in order to quickly charge electric vehicles, people will abandon the original chargers and plugs and instead purchase high-power chargers to charge electric vehicles. This can easily cause safety accidents such as overcharging, heating and even fire of electric vehicle batteries, posing a serious threat to personal safety and property safety. Summary of the invention

[0004] In order to reduce the risk of users using non-original charging plugs, thereby reducing the risk of battery failure or accidents, the present application provides a charging structure with an anti-misplugging function.

[0005] The present application provides a charging structure with an anti-misplugging function using the following technical solution:

[0006] A charging structure with an anti-misinsertion function comprises a plug and a socket, wherein the plug is provided with a plurality of connection holes, and the socket is provided with a plug post in each of the connection holes; the socket is provided with a connection post, each of the connection posts corresponds to each of the connection holes one by one, and the cross-section of each of the connection posts is a matching polygon with the cross-section at the corresponding connection hole on the plug, and the connection post is inserted through the corresponding connection hole and snap-connected to the plug; the connection post is provided with a power-on slot, and the plug post is inserted into the connection post through the power-on slot.

[0007] By adopting the above technical solution, when charging, align the connecting column on the socket with the corresponding connecting hole, insert the plug into the socket, and through the connection between the irregular polygonal connecting column and the socket, the user can only use the original charging plug to charge the electric vehicle, thereby reducing battery damage and safety hazards caused by using a third-party plug to charge the electric vehicle.

[0008] Preferably, the connecting column includes a first monomer and a pair of second monomers, the plug column includes a negative pole column, a positive pole column and a ground pole, the ground pole is inserted into the socket through the connecting hole of the first monomer, the positive pole column is inserted into the socket through a connecting hole of the second monomer, and the negative pole column is inserted into the socket through another connecting hole of the second monomer; the cross-section of the first monomer and the cross-section of the second monomer respectively form different polygons.

[0009] By adopting the above technical solution, a variety of different connecting posts are used to connect the plug posts, which further improves the specificity of the connecting posts on the socket, thereby improving the compatibility between the original plug and the socket, reducing the possibility of a third-party plug being plugged into the original socket, and further reducing the risk of battery accidents.

[0010] Preferably, the polygons formed by the cross sections of the two second monomers are symmetrically arranged along a straight line where the geometric center of the socket is located.

[0011] By adopting the above technical solution, the two second units are reasonably arranged on the socket, the space occupied by the two second units is reduced, and the volume required for the socket is reduced, thereby improving the space utilization rate of the socket installed at the rear of the electric vehicle.

[0012] Preferably, the socket is provided with a slot for inserting the plug, and each of the connecting columns is arranged in the slot; a waterproof cover is movably installed on the socket, and the waterproof cover is installed on the socket through the slot.

[0013] By adopting the above technical solution, when the electric vehicle is in use, the waterproof cover is installed on the slot of the socket, so as to close the socket and reduce the situation where water enters the socket during the driving of the electric vehicle and damages the circuit at the socket.

[0014] Preferably, the inner wall of the socket at the slot is circumferentially provided with a waterproof groove, and the waterproof cover is provided with a connecting ring, which is plugged into the socket through the waterproof groove, and is used to abut against the inner wall of the socket at the waterproof groove.

[0015] By adopting the above technical solution, when the socket needs to be sealed, the connecting ring is first inserted into the socket, and a stable connection between the connecting ring and the socket is achieved through the interference fit of the connecting ring with the waterproof groove, so that the waterproof cover can stably seal the socket and reduce the possibility of accumulated water entering the socket.

[0016] Preferably, the plug is provided with a water retaining ring along the circumferential direction, and the water retaining ring is used to abut against the inner wall of the socket at the waterproof groove.

[0017] By adopting the above technical solution, when charging the electric vehicle, the plug is inserted into the socket, and the water retaining ring is inserted into the waterproof groove of the socket. Through the interference fit between the water retaining ring and the socket, the socket is stably sealed, thereby reducing the situation where water accumulates and enters between the plug and the socket during charging, thereby damaging the circuit.

[0018] Preferably, a limiting block is provided on the outer side wall of the plug, and a limiting groove is provided on the inner wall of the slot of the socket, and the limiting block is clamped to the socket through the limiting groove.

[0019] By adopting the above technical solution, after the plug is inserted into the socket, the limit block and the connecting column work together to reduce the compatibility between the third-party plug and the original socket; at the same time, the rotation of the plug is limited to improve the stability of the connection between the plug and the socket.

[0020] Preferably, an identification electrode is circumferentially provided on the outer side wall of the plug, and an identification terminal is circumferentially provided on the inner wall of the slot of the socket, and when the plug is inserted into the socket, the identification electrode abuts against the identification terminal.

[0021] By adopting the above technical solution, the plug can charge the battery of the electric vehicle only after the identification terminal is electrically connected to the identification electrode, which further limits the charging of the electric vehicle by a third-party plug.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Through the connection between the irregular polygonal connecting column and the socket, users can only use the original charging plug to charge the electric vehicle, thereby reducing the battery damage and safety hazards caused by using third-party plugs to charge the electric vehicle;

[0024] 2. Use a variety of different connection posts to connect the plug posts, further improving the specificity of the connection posts on the socket, thereby improving the compatibility between the original plug and the socket, reducing the possibility of third-party plugs being plugged into the original socket, and further reducing the risk of battery accidents;

[0025] 3. The plug can charge the electric vehicle battery only after the identification terminal is electrically connected to the identification electrode, further limiting the ability of third-party plugs to charge electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the plug according to the embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the overall structure of the socket in the embodiment of the present application.

[0028] Figure 3It is a front view of the plug according to the embodiment of the present application.

[0029] Figure 4 It is a front view of the socket according to the embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Plug; 11. Connection hole; 12. Plug column; 121. Negative pole column; 122. Positive pole column; 123. Ground pole column; 13. Water retaining ring; 2. Socket; 21. Slot; 22. Power-on slot; 3. Connection column; 31. First unit; 32. Second unit; 4. Limit block; 41. Limit slot; 5. Waterproof cover; 51. Connection ring; 6. Identify electrode; 7. Identify terminal. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a charging structure with an anti-misplugging function.

[0034] Reference Figure 1 and Figure 2 A charging structure with an anti-misinsertion function includes a plug 1 and a socket 2, referring to Figure 3 and Figure 4 , the cross-sections of the plug 1 and the socket 2 are both circular; the plug 1 is provided with three connection holes 11, and the socket 2 is provided with a plug post 12 for power supply in each connection hole 11; the socket 2 is provided with a slot 21 for the plug 1 to be inserted, and the socket 2 is provided with a connection post 3, and each connection post 3 is arranged in the slot 21; each connection post 3 corresponds to each connection hole 11 one by one, and the cross-section of each connection post 3 is a polygon that matches the cross-section at the corresponding connection hole 11 on the plug 1; the connection post 3 is inserted through the corresponding connection hole 11 and is snap-connected to the plug 1; the connection post 3 is provided with a power supply slot 22, and the plug post 12 is inserted into the connection post 3 through the power supply slot 22;

[0035] When charging the electric vehicle, first align the pin 12 on the plug 1 with the power-on hole on the connecting pin 3, and then insert the plug 1 into the socket 2. At this time, the connecting pin 3 with a corresponding shape is inserted into the corresponding connecting hole 11 on the plug 1, and the pin 12 hidden in the connecting hole 11 can be inserted into the power-on hole on the socket 2 to charge the electric vehicle. This design allows the original socket 2 and plug 1 to adapt to each other. When the user inserts a third-party high-power charger plug 1 into the socket 2 of the electric vehicle, the third-party plug 1 is blocked by the irregularly shaped connecting pin 3 and cannot be inserted into the socket 2, making it difficult for the user to use a third-party charger to charge the electric vehicle, thereby reducing the occurrence of accidents.

[0036] Reference Figure 1and Figure 3 A limiting block 4 is provided on the outer wall of the plug 1 , and a limiting groove 41 is provided on the inner wall of the slot 21 of the socket 2 , and the limiting block 4 is connected to the socket 2 through the limiting groove 41 .

[0037] Reference Figure 1 and Figure 2 The connecting column 3 includes a first monomer 31 and a pair of second monomers 32, the plug 12 includes a negative pole column 121, a positive pole column 122 and a ground pole 123, the ground pole 123 is inserted into the socket 2 through the connecting hole 11 of the first monomer 31, the positive pole column 122 is inserted into the socket 2 through the connecting hole 11 of one of the second monomers 32, and the negative pole column 121 is inserted into the socket 2 through the connecting hole 11 of the other second monomer 32; the cross-section of the first monomer 31 and the cross-section of the second monomer 32 form different polygons respectively.

[0038] The polygon formed by the cross sections of the two second monomers 32 is symmetrically arranged along the diameter of the socket 2; the first monomer 31 is located below the second monomer 32 and between the two second monomers 32; the negative pole 121, the positive pole 122 and the ground pole 123 correspond to different connecting poles 3 one by one, so that only the matching plug 1 can be plugged into the socket 2 for charging, further reducing the possibility of charging the electric vehicle by a third-party plug 1.

[0039] Reference Figure 2 and Figure 4 A waterproof cover 5 is movably installed on the socket 2, and the waterproof cover 5 is installed on the socket 2 through a slot 21; a waterproof groove is circumferentially arranged on the inner wall of the socket 2 at the slot 21, and a connecting ring 51 is arranged on the waterproof cover 5. The connecting ring 51 is plugged into the socket 2 through the waterproof groove, and the connecting ring 51 is used to abut against the inner wall of the socket 2 at the waterproof groove; the design of the waterproof cover 5 can reduce the possibility of water entering the socket 2 during the use of the electric vehicle, and reduce the possibility of water entering the socket 2 to damage the battery.

[0040] Reference Figure 1 The plug 1 is provided with a water retaining ring 13 along the circumferential direction. The water retaining ring 13 is used to abut against the inner wall of the socket 2 at the waterproof groove. When the plug 1 is inserted into the socket 2, the water retaining ring 13 forms a seal for the gap at the connection, thereby reducing the situation in which accumulated water leaks into the gap between the plug 1 and the socket 2 during charging and causes damage to the battery.

[0041] Reference Figure 3 and Figure 4 An identification electrode 6 is circumferentially arranged on the outer wall of the plug 1, and an identification terminal 7 is circumferentially arranged on the inner wall of the slot 21 of the socket 2. When the plug 1 is inserted into the socket 2, the identification electrode 6 abuts against the identification terminal 7. Only when the original plug 1 and the socket 2 are connected, the identification electrode 6 and the identification terminal 7 contact each other, contacting the socket 2 to limit charging, and completing the normal charging of the electric vehicle.

[0042] The implementation principle of a charging structure with an anti-misinsertion function in the embodiment of the present application is: when the electric vehicle needs to be charged, open the waterproof cover 5 on the socket 2, align the plug post 12 on the plug 1 with the corresponding connecting post 3, and then insert the plug 1 into the socket 2. At this time, the connecting post 3 is inserted into the plug 1 through the connecting hole 11, so that the plug 1 can completely enter the slot 21 and start charging the electric vehicle. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A charging structure with an anti-misinsertion function, characterized in that: The invention comprises a plug (1) and a socket (2), wherein the plug (1) is provided with a plurality of connection holes (11), and the socket (2) is provided with a plug post (12) in each of the connection holes (11); the socket (2) is provided with a connection post (3), each of the connection posts (3) corresponds to each of the connection holes (11) one by one, and the cross section of each of the connection posts (3) is a polygon that matches the cross section of the corresponding connection hole (11) on the plug (1), and the connection post (3) is inserted through the corresponding connection hole (11) and is snap-connected to the plug (1); the connection post (3) is provided with a power-on slot (22), and the plug post (12) is inserted into the connection post (3) through the power-on slot (22).

2. A charging structure with anti-misinsertion function according to claim 1, characterized in that: The connecting column (3) comprises a first monomer (31) and a pair of second monomers (32); the plug column (12) comprises a negative pole column (121), a positive pole column (122) and a ground pole (123); the ground pole (123) is inserted into the socket (2) through a connecting hole (11) of the first monomer (31); the positive pole column (122) is inserted into the socket (2) through a connecting hole (11) of one of the second monomers (32); and the negative pole column (121) is inserted into the socket (2) through a connecting hole (11) of another of the second monomers (32); and the cross-sections of the first monomer (31) and the second monomer (32) respectively form different polygons.

3. A charging structure with anti-misinsertion function according to claim 2, characterized in that: The polygons formed by the cross sections of the two second monomers (32) are symmetrically arranged along a straight line where the geometric center of the socket (2) is located.

4. The charging structure with anti-misinsertion function according to claim 1, characterized in that: The socket (2) is provided with a slot (21) for inserting the plug (1), and each of the connecting columns (3) is arranged in the slot (21); a waterproof cover (5) is movably mounted on the socket (2), and the waterproof cover (5) is mounted on the socket (2) through the slot (21).

5. The charging structure with anti-misinsertion function according to claim 4, characterized in that: The inner wall of the socket (2) at the insertion slot (21) is provided with a waterproof groove along the circumferential direction, and the waterproof cover (5) is provided with a connecting ring (51), the connecting ring (51) is plugged into the socket (2) through the waterproof groove, and the connecting ring (51) is used to abut against the inner wall of the socket (2) at the waterproof groove.

6. The charging structure with anti-misinsertion function according to claim 5, characterized in that: The plug (1) is provided with a water retaining ring (13) along the circumferential direction, and the water retaining ring (13) is used to abut against the inner wall of the socket (2) at the waterproof groove.

7. The charging structure with anti-misinsertion function according to claim 4, characterized in that: A limit block (4) is provided on the outer wall of the plug (1), a limit groove (41) is provided on the inner wall of the slot (21) of the socket (2), and the limit block (4) is clamped to the socket (2) via the limit groove (41).

8. The charging structure with anti-misinsertion function according to claim 4, characterized in that: An identification electrode (6) is circumferentially arranged on the outer wall of the plug (1), and an identification terminal (7) is circumferentially arranged on the inner wall of the slot (21) of the socket (2); when the plug (1) is inserted into the socket (2), the identification electrode (6) abuts against the identification terminal (7).

Images