Waterproof inverter connecting line

By introducing a fixing knob and mating screw seat design into the inverter connection cable, combined with the plug plate, slot and spring structure, the problem of unstable connection head is solved, achieving stable connection and improved sealing, ensuring the reliability and waterproof performance of the connection cable.

CN224438088UActive Publication Date: 2026-06-30YUEQING MINGJIE PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUEQING MINGJIE PLASTIC PROD CO LTD
Filing Date
2025-05-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing inverter connection cable is not securely fixed at the connector, resulting in poor sealing performance.

Method used

The connector uses a combination of a fixed knob and a mating screw seat, along with a design of a insert plate, a slot, and a spring, to achieve quick fixing of the connector and improve sealing performance through a sealing ring and a sealing gasket.

Benefits of technology

This achieves a stable connection and improves sealing, preventing loosening and ensuring the reliability and waterproof performance of the connection cable.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224438088U_ABST
    Figure CN224438088U_ABST
Patent Text Reader

Abstract

This utility model discloses a waterproof inverter connection cable, including a first connector and a second connector that can be connected to the first connector. Both the first and second connectors are provided with connecting wires. The first connector is provided with a fixing ring, and a plug plate is provided in the fixing ring. The second connector is provided with a fixing knob. After the first and second connectors are connected, they can be fixed by turning the fixing knob. In addition, the fixing knob can be fixed by using the plug plate. The beneficial effects of this utility model are: the cooperation between the fixing knob and the connecting screw seat can realize the quick connection and fixation between the first and second connectors; the cooperation of the plug plate, the slot and the spring can fix the fixing knob to prevent it from loosening; and the setting of the first sealing ring, the second sealing ring and the sealing gasket improve the overall sealing performance between the first and second connectors.
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Description

Technical Field

[0001] This utility model relates to the field of connection cable technology, specifically a waterproof inverter connection cable. Background Technology

[0002] An inverter cable is a type of wire used to connect an inverter to a solar panel. An inverter is a device that converts direct current (DC) to alternating current (AC), while solar panels generate DC. Therefore, an inverter cable is the wire that connects the DC power output from the solar panel to the inverter. This cable needs to have sufficient electrical performance and a reliable mechanical connection to ensure the normal operation and safety of the solar power system.

[0003] Existing inverter connection cables typically use an interlocking fixing method when connecting two connectors. As a result, the two connectors are not securely fixed and are prone to loosening, leading to poor sealing performance. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof inverter connection cable to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof inverter connection cable, including a first connector and a second connector that can be connected to the first connector. Both the first and second connectors are provided with connecting wires. The first connector is provided with a fixing ring, and a plug plate is provided in the fixing ring. The second connector is provided with a fixing knob. After the first and second connectors are connected, they can be fixed by turning the fixing knob. Furthermore, the fixing knob can be fixed by using the plug plate.

[0006] As a preferred embodiment of this utility model, a mating screw seat is fixedly connected to the first connector head, and a connector is provided in the mating screw seat. A plug is fixedly connected to the second connector head. After the first connector head and the second connector head are mated, the plug can be inserted into the connector, and the fixing knob can be rotated to the mating screw seat to realize the connection between the first connector head and the second connector head.

[0007] As a preferred embodiment of this utility model, the second connector is provided with a first sealing ring and a second sealing ring. After the plug is inserted into the connector, the mating screw seat and the first sealing ring are in close contact.

[0008] As a preferred embodiment of this utility model, the fixing ring is provided with a mating groove, and a sealing gasket is fixedly connected in the mating groove. After the fixing knob is screwed onto the joint, one end of the fixing knob abuts against the sealing gasket.

[0009] As a preferred embodiment of this utility model, the fixing knob is provided with a slot for use with the insert plate, a pull plate is fixedly connected to the insert plate, the pull plate is slidably connected to the fixing ring, and a spring is fixedly connected between the inner walls of the insert plate and the fixing ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can achieve quick connection and fixation between the first connector and the second connector through the cooperation of the fixed knob and the docking screw seat. With the cooperation of the set insert plate, slot and spring, the fixed knob can be fixed to prevent the fixed knob from loosening. Furthermore, with the setting of the first sealing ring, the second sealing ring and the sealing gasket, the overall sealing performance between the first connector and the second connector is improved. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram showing the separate structure of the first connector and the second connector of this utility model;

[0013] Figure 3 This is a schematic diagram of the fixing ring structure of this utility model.

[0014] In the diagram: 1. First connector; 2. Second connector; 3. Connecting wire; 4. Mating screw seat; 5. Fixing knob; 6. Connector; 7. Plug; 8. First sealing ring; 9. Second sealing ring; 10. Fixing ring; 11. Slot; 12. Insert plate; 13. Pull plate; 14. Spring; 15. Mating groove; 16. Sealing gasket. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 3This utility model provides a technical solution: a waterproof inverter connection cable, including a first connector 1 and a second connector 2 that can be connected to the first connector 1. Both the first connector 1 and the second connector 2 are provided with connecting wires 3. After the first connector 1 and the second connector 2 are connected, the two connecting wires 3 are connected. The first connector 1 is provided with a fixing ring 10, and a plug plate 12 is provided in the fixing ring 10. The second connector 2 is provided with a fixing knob 5. After the first connector 1 and the second connector 2 are connected, the fixing knob 5 can be turned to fix the first connector 1 and the second connector 2. After the fixing knob 5 abuts against the fixing ring 10, it can be fixed by using the plug plate 12.

[0017] The first connector 1 is fixedly connected to a mating screw seat 4, and the fixing knob 5 can be used in conjunction with the mating screw seat 4. The mating screw seat 4 has a connector 6. The second connector 2 is fixedly connected to a plug 7. After the first connector 1 and the second connector 2 are mated, the plug 7 can be inserted into the connector 6, and the fixing knob 5 can be rotated onto the mating screw seat 4 to realize the connection between the first connector 1 and the second connector 2.

[0018] The second connector 2 is provided with a first sealing ring 8 and a second sealing ring 9. After the plug 7 is inserted into the connector 6, the mating screw seat 4 is in close contact with the first sealing ring 8. After the fixing knob 5 is tightened on the mating screw seat 4, one side of the inner wall of the fixing knob 5 is in close contact with the second sealing ring 9.

[0019] The fixing ring 10 is provided with a mating groove 15, and a sealing gasket 16 is fixedly connected in the mating groove 15. After the fixing knob 5 is screwed onto the connector 6, one end of the fixing knob 5 abuts against the sealing gasket 16, thereby achieving a seal between the fixing knob 5 and the first connector 1.

[0020] The fixed knob 5 has a slot 11 for use with the insert plate 12. A pull plate 13 is fixedly connected to the insert plate 12. The pull plate 13 is slidably connected to the fixed ring 10. A spring 14 is fixedly connected between the inner wall of the insert plate 12 and the fixed ring 10. By pulling the pull plate 13, the insert plate 12 can be moved more easily, and under the elastic force of the spring 14, the insert plate 12 can be easily reset.

[0021] Specifically, when connecting the first connector 1 and the second connector 2, the plug 7 can be inserted into the connector 6, so that the mating screw seat 4 abuts against the first sealing ring 8. Then, the fixing knob 5 is rotated so that the fixing knob 5 is screwed onto the mating screw seat 4, and one end of the fixing knob 5 enters the mating groove 15. By pulling the pull plate 13, the insert plate 12 is pulled upward and the spring 14 is compressed and contracted. Then, the fixing knob 5 is continued to be turned to press against the sealing gasket 16. After that, the pull plate 13 is released, so that the insert plate 12 is inserted into the slot 11 under the elastic force of the spring 14 to fix the fixing knob 5.

[0022] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof inverter connection cable, comprising a first connector (1) and a second connector (2) that can be connected to the first connector (1), wherein both the first connector (1) and the second connector (2) are provided with connection wires (3), characterized in that: The first connector (1) is provided with a fixing ring (10), and the fixing ring (10) is provided with a insert plate (12). The second connector (2) is provided with a fixing knob (5). After the first connector (1) and the second connector (2) are connected, they can be fixed by turning the fixing knob (5). In addition, the fixing knob (5) can be fixed by using the insert plate (12).

2. The waterproof inverter connection cable according to claim 1, characterized in that: A mating screw seat (4) is fixedly connected to the first connector (1), and a connector (6) is provided in the mating screw seat (4). A plug (7) is fixedly connected to the second connector (2). After the first connector (1) and the second connector (2) are mated, the plug (7) can be inserted into the connector (6), and the fixing knob (5) can be rotated to the mating screw seat (4) to realize the connection between the first connector (1) and the second connector (2).

3. The waterproof inverter connection cable according to claim 2, characterized in that: The second connector (2) is provided with a first sealing ring (8) and a second sealing ring (9). After the plug (7) is inserted into the connector (6), the mating screw seat (4) and the first sealing ring (8) are in close contact.

4. A waterproof inverter connection cable according to claim 2, characterized in that: The fixing ring (10) is provided with a docking groove (15), and a sealing gasket (16) is fixedly connected in the docking groove (15). After the fixing knob (5) is screwed on the connector (6), one end of the fixing knob (5) abuts against the sealing gasket (16).

5. A waterproof inverter connection cable according to claim 1, characterized in that: The fixed knob (5) has a slot (11) for use with the insert plate (12). A pull plate (13) is fixedly connected to the insert plate (12). The pull plate (13) is slidably connected to the fixed ring (10). A spring (14) is fixedly connected between the inner wall of the insert plate (12) and the fixed ring (10).