Short-circuit prevention structure of direct-current high-current connector

Abstract

The utility model belongs to the technical field of high-current connectors, and particularly relates to a direct-current high-current connector anti-short-circuit structure which comprises a socket main body used for being installed on a device and a plug main body used for being connected with an electric wire, and a long connecting sleeve and a short connecting sleeve are arranged at the outer end of the socket main body side by side. When the plug body is inserted into the socket body for normal use, the short connector is connected with the long connecting sleeve in a matched mode, and the long connector is connected with the short connecting sleeve in a matched mode. The long connecting sleeve and the short connecting sleeve on the socket main body and the long connecting head and the short connecting head on the plug main body are arranged in a staggered manner to form a pairing mechanism, so that effective circuit connection cannot be formed due to mismatching of the connecting heads and the connecting sleeves even under the condition of accidentally trying to insert reversely or pairing mistakenly. Therefore, the occurrence of short circuit accidents is fundamentally prevented.

Description

Technical Field

[0001] This utility model belongs to the field of high current connector technology, specifically relating to a short-circuit protection structure for a DC high current connector. Background Technology

[0002] A connector, generally referring to an electrical connector, is a device that connects two active devices to transmit current or signals. Connectors come in a wide variety of forms and structures, depending on the application, frequency, power, and environment.

[0003] High-current connectors, in particular, are widely used in electric vehicles, electric forklifts, UPS, general power supplies, medical equipment, solar energy, and new energy fields. Existing connectors generally consist of two sets of corresponding accessories: a plug and a socket. However, the plug and socket are each made of a single molded shell, and their appearance is quite similar. When operators plug and unplug them, there is a risk of short circuits due to misoperation or improper connection, which can damage equipment and devices. Utility Model Content

[0004] I. Technical problems to be solved

[0005] This utility model addresses the aforementioned deficiencies in existing technologies by proposing a short-circuit protection structure for a high-current DC connector. The long and short connecting sleeves on the socket body are staggered with the long and short connecting heads on the plug body, forming a pairing mechanism to avoid the risk of short circuits caused by misoperation or improper connection, thus preventing damage to equipment and devices.

[0006] II. Technical Solution

[0007] To solve the above technical problems, this utility model provides the following technical solution: a short-circuit protection structure for a DC high-current connector, including a socket body for installation on a device and a plug body for connecting wires. A long connecting sleeve and a short connecting sleeve are arranged side by side on the outer end of the socket body, and a long connecting head and a short connecting head are arranged side by side on the end of the plug body away from the wire. When the plug body is inserted into the socket body for normal use, the short connecting head and the long connecting sleeve are connected together.

[0008] Preferably, the socket body has a first copper core and a second copper core arranged side by side inside, the first copper core is arranged inside the long connecting sleeve, and the second copper core is arranged inside the short connecting sleeve. The plug body has a first copper sleeve and a second copper sleeve arranged side by side inside, matching the first copper core and the second copper core, the first copper sleeve is arranged inside the short connecting head, and the second copper sleeve is arranged inside the long connecting head.

[0009] Preferably, the first copper core and the second copper core are staggered, and the first copper sleeve and the second copper sleeve are staggered.

[0010] Preferably, guide grooves are provided in the connection end between the first copper sleeve and the first copper core, and in the connection end between the second copper sleeve and the second copper core.

[0011] Preferably, an opening is provided on the connection end between the first copper core and the first copper sleeve, and on the connection end between the second copper core and the second copper sleeve, and a guide head matching the guide groove is provided on the outer periphery of the top of the opening.

[0012] Preferably, the socket body is provided with bolt holes.

[0013] Preferably, the socket body and plug body are made of insulating material.

[0014] III. Beneficial Effects

[0015] Compared with the prior art, the long connecting sleeve and short connecting sleeve on the socket body of this utility model are staggered with the long connecting head and short connecting head on the plug body to form a pairing mechanism. Even if the reverse insertion or incorrect pairing is attempted by mistake, the mismatch between the connecting head and the connecting sleeve will prevent the formation of an effective circuit connection, thereby fundamentally preventing the occurrence of short circuit accidents.

[0016] Furthermore, this utility model also provides double-layer insulation protection inside and outside the mating area. Specifically, since the long connecting sleeve, short connecting sleeve, long connecting head and short connecting head are all made of nylon insulating shell, the two shells are also mated together after mating, providing double-layer insulation protection against electric arcs or electric sparks that may be generated during the mating of high current connectors. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a short-circuit protection structure for a high-current DC connector. Figure 1 .

[0018] Figure 2 A three-dimensional structural diagram of a short-circuit protection structure for a high-current DC connector. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a socket body and a plug body of a DC high-current connector with short-circuit protection.

[0020] Figure 4 This is an exploded three-dimensional view of a short-circuit protection structure for a high-current DC connector.

[0021] Figure 5 This is a cross-sectional view of a short-circuit protection structure for a high-current DC connector.

[0022] In the picture:

[0023] 1 is the socket body; 11 is the first copper core; 12 is the second copper core; 13 is the opening; 14 is the guide head; 2 is the plug body; 21 is the first copper sleeve; 22 is the second copper sleeve; 23 is the guide groove; 3 is the long connecting sleeve; 4 is the short connecting sleeve; 5 is the long connecting head; 6 is the short connecting head; 7 is the bolt hole. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0025] Example 1:

[0026] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the DC high-current connector short-circuit protection structure of this embodiment includes a socket body 1 for mounting on a device and a plug body 2 for connecting wires. A long connecting sleeve 3 and a short connecting sleeve 4 are arranged side-by-side on the outer end of the socket body 1. A long connecting head 5 and a short connecting head 6 are arranged side-by-side on the end of the plug body 2 furthest from the wire. When the plug body 2 is inserted into the socket body 1 for normal use, the short connecting head 6 engages with the long connecting sleeve 3, and the long connecting head 5 engages with the short connecting sleeve 4. Through the socket body 1 for mounting on equipment or devices and the plug body 2 for connecting external wires, not only is efficient power transmission achieved, but the risk of short circuits due to misoperation or improper connection is also greatly reduced.

[0027] The outer end of the socket body 1 is designed with a long connecting sleeve 3 and a short connecting sleeve 4 arranged side by side. They differ in size (the long connecting sleeve 3 is relatively long, while the short connecting sleeve 4 is shorter) to ensure that the current can flow safely and efficiently to the designated circuit.

[0028] The plug body 2 has a long connector 5 and a short connector 6 arranged side-by-side at the end furthest from the power cord. The long connector 5 and the short connector 6 correspond to the long connector sleeve 3 and the short connector sleeve 4 on the socket body, forming a pairing mechanism. The long connector 5 and the short connector 6 are designed in terms of shape, size, and contact points to ensure that they can only be matched with the long connector sleeve 3 and the short connector sleeve 4 on the socket body 1 in a specific way (i.e., long to short, short to long), thereby effectively preventing short circuits caused by incorrect connections.

[0029] Inside the socket body 1, a first copper core 11 and a second copper core 12 are arranged side by side. The first copper core 11 is located inside the long connecting sleeve 3, and the second copper core 12 is located inside the short connecting sleeve 4. Inside the plug body 2, a first copper sleeve 21 and a second copper sleeve 22, which match the first copper core 11 and the second copper core 12, are arranged side by side. The first copper sleeve 21 is located inside the short connecting head 6, and the second copper sleeve 22 is located inside the long connecting head 5. The first copper core 11 and the second copper core 12 are staggered, and the first copper sleeve 21 and the second copper sleeve 22 are also staggered.

[0030] The first copper core 11 is located inside the long connecting sleeve 3. The size and shape of the long connecting sleeve 3 are designed to fit tightly with the corresponding parts on the plug body 2, while providing sufficient space to accommodate and protect the first copper core 11. The second copper core 12 is installed inside the short connecting sleeve 4. The short connecting sleeve 4 is arranged side by side with the long connecting sleeve 3 on the socket body 1, forming a complete connection system. The second copper core 12 is also made of high-quality copper, with similar conductivity and heat resistance to the first copper core 11. The first copper core 11 and the second copper core 12 are staggered inside the socket body 1, that is, they are not on the same vertical or horizontal line, but have a certain offset. This staggered arrangement is one of the keys to the anti-short circuit structure, ensuring that the risk of short circuit is avoided even in the event of accidental insertion or external impact.

[0031] Inside the plug body 2, two conductive components that match the copper core in the socket body 1 are arranged side by side: a first copper sleeve 21 and a second copper sleeve 22.

[0032] The first copper sleeve 21 is disposed inside the short connector 6. The shape and size of the short connector 6 match the long connector sleeve 3 on the socket body 1. When the plug body 2 is inserted into the socket body 1, the first copper sleeve 21 tightly wraps around the first copper core 11, forming a reliable electrical connection. The second copper sleeve 22 is disposed inside the long connector 5. The long connector 5 matches the short connector sleeve 4 on the socket body 1. When the plug body 2 mates with the socket body 1, the second copper sleeve 22 tightly wraps around the second copper core 12, forming another reliable electrical connection.

[0033] Combining 4 and Figure 5 As shown, guide grooves 23 are provided in the connection ends of the first copper sleeve 21 and the first copper core 11, and in the connection ends of the second copper sleeve 22 and the second copper core 12. Openings 13 are provided on the connection ends of the first copper core 11 and the first copper sleeve 21, and on the connection ends of the second copper core 12 and the second copper sleeve 22. A guide head 14 matching the guide groove 23 is provided on the outer periphery of the top of the opening 13. The guide groove 23 not only guides the plug body 2 to be correctly inserted into the socket body 1, but also ensures, through its specific shape and size, that the first copper sleeve 21 and the second copper sleeve 22 can form a fit with the first copper core 11 and the second copper core 12.

[0034] Openings 13 are provided at the connection ends of the first copper core 11 and the first copper sleeve 21, and at the connection ends of the second copper core 12 and the second copper sleeve 22. These openings not only provide the necessary space for the electrical connection between the first copper core 11 and the second copper core 12 and the first copper sleeve 21 and the second copper sleeve 22, but also, through their specific shapes and sizes, form a fit with the guide grooves 23 on the plug body 2.

[0035] The top outer periphery of the opening 13 is provided with guide heads 14 that match the guide groove 23. These guide heads 14 are typically designed as protrusions or conical structures that match the shape of the guide groove 23. When the plug body 2 begins to be inserted into the socket body 1, the guide head 14 will first contact the entrance of the guide groove 23. As the plug body 2 continues to be inserted, the guide head 14 will gradually move along the path of the guide groove 23 until it is completely aligned with the bottom of the guide groove 23. Furthermore, due to the design of the opening 13, it can provide a certain rebound effect after insertion, resulting in a tighter fit and improving the electrical connection.

[0036] Example 2:

[0037] Compared to Embodiment 1, the main function of the bolt hole 7 in this embodiment is to securely install the socket body 1 onto the equipment or device. By using appropriate bolts and nuts, the user can easily fix the socket body 1 in the predetermined position, ensuring that it will not loosen or shift during use. This installation method is not only simple and quick, but also provides extremely high stability and reliability.

[0038] When the socket body 1 malfunctions or needs upgrading, the user can easily remove the socket body 1 from the equipment or device by unscrewing the bolts for necessary repairs or replacement. This not only improves the efficiency of maintenance work but also reduces maintenance costs. The socket body 1 and plug body 2 are made of insulating material.

[0039] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A short-circuit protection structure for a high-current DC connector, characterized in that, The DC high current connector anti-short circuit structure includes a socket body (1) for installation on the device and a plug body (2) for connecting wires. The outer end of the socket body (1) is provided with a long connecting sleeve (3) and a short connecting sleeve (4) side by side. The end of the plug body (2) away from the wire is provided with a long connecting head (5) and a short connecting head (6) side by side. When the plug body (2) is inserted into the socket body (1) for normal use, the short connecting head (6) is connected with the long connecting sleeve (3), and the long connecting head (5) is connected with the short connecting sleeve (4).

2. The short-circuit protection structure for a high-current DC connector according to claim 1, characterized in that, The socket body (1) has a first copper core (11) and a second copper core (12) arranged side by side inside. The first copper core (11) is located inside the long connecting sleeve (3), and the second copper core (12) is located inside the short connecting sleeve (4). The plug body (2) has a first copper sleeve (21) and a second copper sleeve (22) arranged side by side inside, which match the first copper core (11) and the second copper core (12). The first copper sleeve (21) is located inside the short connector (6), and the second copper sleeve (22) is located inside the long connector (5).

3. The short-circuit protection structure for a high-current DC connector according to claim 2, characterized in that, The first copper core (11) and the second copper core (12) are staggered, and the first copper sleeve (21) and the second copper sleeve (22) are staggered.

4. The short-circuit protection structure for a high-current DC connector according to claim 2, characterized in that, Guide grooves (23) are provided in the connection end between the first copper sleeve (21) and the first copper core (11) and in the connection end between the second copper sleeve (22) and the second copper core (12).

5. The short-circuit protection structure for a high-current DC connector according to claim 4, characterized in that, An opening (13) is provided on the connection end between the first copper core (11) and the first copper sleeve (21) and on the connection end between the second copper core (12) and the second copper sleeve (22). A guide head (14) matching the guide groove (23) is provided on the outer periphery of the top of the opening (13).

6. The short-circuit protection structure for a high-current DC connector according to claim 1, characterized in that, The socket body (1) is provided with bolt holes (7).

7. A short-circuit protection structure for a high-current DC connector according to any one of claims 1-6, characterized in that, The socket body (1) and plug body (2) are made of insulating material.

Images