A line-to-line connector applied to an explosion-proof frequency converter

Abstract

This utility model discloses a wire-to-wire connector for use in explosion-proof frequency converters, comprising a multi-core terminal head, a multi-core connector, a mounting frame, and a base plate. The multi-core terminal head and the multi-core connector are fixed to the mounting frame. The base plate has a rectangular slot through which the multi-core connector passes and into which the mounting frame is inserted. The mounting frame is fixed in the rectangular slot by screws screwed into the first and second bolt holes. The base plate is fixed to the frequency converter cabinet door. The wiring harness from the frequency converter cavity to the cabinet door is plugged into the multi-core terminal head, and the wiring harness from the frequency converter cabinet door to the cavity is plugged into the multi-core connector. This utility model's wire-to-wire connector can accommodate multiple control lines and allows for free disassembly, solving the drawback of not being able to operate in parallel when wiring harnesses across cabinet doors, improving wiring efficiency, solving the difficulty of removing control lines when replacing cabinet door components, and improving the convenience of later maintenance.

Description

Technical Field

[0001] This utility model relates to a wire-to-wire connector, and more specifically, to a wire-to-wire connector used in explosion-proof frequency converters. Background Technology

[0002] With the development and progress of the coal mining industry, the application of explosion-proof frequency converters in mines is gradually increasing, and the current market competition for explosion-proof frequency converters is becoming increasingly fierce. Due to space constraints in mines, explosion-proof frequency converters are developing towards miniaturization, resulting in increasingly smaller device sizes. To maximize the use of the internal space of the explosion-proof frequency converter, more and more components are placed on the cabinet door. These components are connected to the main cavity via wires, and the wiring harnesses passing through the cabinet door directly affect the stability and reliability of the frequency converter, as well as wiring efficiency and ease of product maintenance. Therefore, this paper proposes a wire-to-wire connector for use in explosion-proof frequency converters. Summary of the Invention

[0003] In order to overcome the shortcomings of the above-mentioned technical problems, this utility model provides a wire-to-wire connector for use in explosion-proof frequency converters.

[0004] This utility model discloses a wire-to-wire connector for use in explosion-proof frequency converters, comprising a multi-core terminal head, a multi-core connector, a mounting frame, and a base plate. The multi-core terminal head and the multi-core connector are inserted together, and both ends of the inserted multi-core terminal head and the multi-core connector are fixed to the mounting frame by connecting bolts. The base plate has a rectangular slot through which the multi-core connector passes and into which the mounting frame is inserted. Both ends of the mounting frame have first bolt holes, and the outer sides of the rectangular slot at both ends of the base plate have second bolt holes that mate with the first bolt holes. The mounting frame is fixed in the rectangular slot by screws screwed into the first and second bolt holes. The base plate is fixed to the frequency converter cabinet door. The wiring harness from the frequency converter cavity to the cabinet door is inserted into the multi-core terminal head, and the wiring harness from the frequency converter cabinet door to the cavity is inserted into the multi-core connector.

[0005] The present invention relates to a wire-to-wire connector used in explosion-proof frequency converters. A side plate is fixed to one end of the base plate away from the rectangular slot. A third bolt hole is provided on the side plate. The side plate and the base plate are integrally bent. The base plate is fixed to the frequency converter cabinet door by screws passing through the third bolt hole.

[0006] The present invention relates to a wire-to-wire connector used in explosion-proof frequency converters, wherein the two ends of the mounting frame are provided with limiting ear plates that can be inserted into rectangular slots.

[0007] The present invention relates to a wire-to-wire connector used in explosion-proof frequency converters, wherein the wire harness connecting the frequency converter cavity and the multi-core terminal head is wrapped with a PP flexible tube.

[0008] The beneficial effects of this utility model are as follows: The wire-to-wire connector of this utility model, applied to explosion-proof frequency converters, is provided with a multi-core terminal head, a multi-core terminal block, a mounting frame, and a base plate. The multi-core terminal head and the multi-core terminal block are plugged together and fixed on the mounting frame. The mounting frame is fixed in a rectangular slot opened in the base plate. The base plate is fixed to the frequency converter cabinet door. The wiring harness from the frequency converter cavity to the cabinet door components is plugged into the multi-core terminal head, and the wiring harness from the cabinet door components to the frequency converter cavity is plugged into the multi-core terminal block. In this way, the wiring between the cabinet door components and the frequency converter cavity is connected through the multi-core terminal head and the terminal block to meet the needs of multiple control lines and can be freely disassembled. This solves the drawback of not being able to operate in parallel when wiring harnesses across cabinet doors, improves wiring efficiency, solves the difficulty of removing control lines when replacing the entire cabinet door components, and improves the convenience of later maintenance. Attached Figure Description

[0009] Figure 1 This is a front view of the wire-to-wire connector of this utility model used in explosion-proof frequency converters;

[0010] Figure 2 This is a rear view of the wire-to-wire connector of this utility model used in an explosion-proof frequency converter;

[0011] Figure 3 This is a left view of the wire-to-wire connector of this utility model used in an explosion-proof frequency converter;

[0012] Figure 4 This is a right view of the wire-to-wire connector of this utility model used in an explosion-proof frequency converter;

[0013] Figure 5 This is a top view of the wire-to-wire connector of this utility model used in an explosion-proof frequency converter;

[0014] Figure 6 This is a bottom view of the wire-to-wire connector of this utility model used in an explosion-proof frequency converter;

[0015] Figure 7 , Figure 8 All are perspective views of the wire-to-wire connector of this utility model applied in explosion-proof frequency converters;

[0016] Figure 9 This is a diagram showing the usage state of the wire-to-wire connector of this utility model.

[0017] In the diagram: 1. Multi-core terminal head, 2. Multi-core wiring socket, 3. Mounting frame, 4. Base plate, 5. Connecting bolt, 6. Rectangular slot, 7. First bolt hole, 8. Side plate, 9. Third bolt hole, 10. Second bolt hole, 11. Limiting ear plate, 12. Inverter cabinet, 13. Inverter cabinet door, 14. Inverter cavity, 15. Wire-to-wire connector, 16. Protective wire harness, 17. Main control section, 18. Inverter module section. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 6 As shown, the front view, rear view, left view, right view, top view, and bottom view of the wire-to-wire connector of this utility model applied in an explosion-proof frequency converter are given respectively. Figure 7 and Figure 8 A three-dimensional diagram is provided, showing that the wire-to-wire connector consists of a multi-core terminal head 1, a multi-core connector 2, a mounting frame 3, and a base plate 4. The multi-core terminal head 1 and the multi-core connector 2 are plugged together, so that the aligned terminal head and connector are electrically connected. The mounting frame 3 is a rectangular frame shape, and the two ends of the plugged-in multi-core terminal head 1 and multi-core connector 2 are fixed to the mounting frame 3 by connecting bolts 5.

[0020] The base plate 4 shown is rectangular in shape, with a rectangular slot 6. After the multi-core terminal head 1 and the multi-core connector 2 are fixed to the mounting frame 3, the multi-core connector 2 passes through the rectangular slot 6, and the mounting frame 3 is secured in the rectangular slot 6. To ensure the multi-core terminal head 1, the multi-core connector 2, and the mounting frame 3 are firmly fixed in the rectangular slot 6, first bolt holes 7 are provided at both ends of the mounting frame 3, and second bolt holes 10 are provided on the outer sides of the base plate 4 at both ends of the rectangular slot 6. Thus, by screwing screws into the first bolt holes 7 and the second bolt holes 10, the mounting frame 3, together with the multi-core terminal head 1 and the multi-core connector 2, can be firmly fixed in the rectangular slot 6.

[0021] Meanwhile, after the mounting frame 3 is inserted into the rectangular slot 6, in order to limit the insertion of the mounting frame 3, both ends of the mounting frame 3 are provided with limiting ear plates 11. The distance between the outer end faces of the two limiting ear plates 11 is slightly greater than the length of the rectangular slot 6. In this way, after the mounting frame 3 is inserted into the rectangular slot 6, the interference fit is used to increase the firmness of the mounting frame 3 in the rectangular slot 6.

[0022] A side plate 8 is provided on the bottom plate 4 away from the rectangular slot 6. The side plate 8 has a third bolt hole 9. The side plate 8 and the bottom plate 4 are integrally bent. The side plate 8 is fixed to the inverter cabinet door 13 by screws passing through the third bolt hole 9. In this way, the bottom plate 4, multi-core terminal head 1, multi-core wiring bracket 2 and mounting frame 3 are fixed on the inverter cabinet door 13.

[0023] In use, the wiring harness from the inverter cavity 14 to the cabinet door device is plugged into the multi-core terminal block 1, and the wiring harness from the cabinet door device to the inverter cavity 14 is plugged into the multi-core terminal block 2. In this way, the electrical connection between the cabinet door device and the corresponding device inside the inverter cavity 14 is realized.

[0024] like Figure 9 The diagram shows the usage state of the wire-to-wire connector of this invention. The inverter cabinet 12 shown contains an inverter cavity 14, and an inverter cabinet door 13 is provided on the inverter cabinet 12. The inverter cavity 14 mainly houses the main circuit components and the control power supply. A cabinet door component is installed on the inner surface of the inverter cabinet door 13, which mainly includes a main control section 17 and an inverter module section 18. The function of the wire-to-wire connector of this invention is to achieve electrical connection between the cabinet door component and the corresponding components inside the inverter cavity 14.

[0025] The wire-to-wire connector 15 shown is fixed to the inverter cabinet door 13. The wiring harness of the components inside the inverter cavity 14 is plugged into the multi-core terminal block 1, and the wiring harness from the cabinet door components to the inverter cavity 14 is plugged into the multi-core terminal block 2. In this way, the wiring harness connection between the cabinet door components and the corresponding components inside the inverter cavity 14 is realized. The wiring harness connecting the components inside the inverter cavity 14 to the multi-core terminal block 1 is wrapped with a PP flexible tube, thus forming a protective wiring harness 16.

[0026] As can be seen, the wire-to-wire connector of this utility model, applied to explosion-proof frequency converters, connects the cabinet door components and the frequency converter cavity through multi-core terminal head 1 and multi-core connector 2, which can meet the needs of multiple control lines and can be freely disassembled. It solves the drawback of not being able to operate in parallel when wiring across cabinet door harnesses, improves wiring efficiency, solves the difficulty of removing control lines when replacing the entire cabinet door components, and improves the convenience of later maintenance.

Claims

1. A wire-to-wire connector for use in explosion-proof frequency converters, comprising a multi-core terminal head (1), a multi-core connector (2), a mounting frame (3), and a base plate (4), wherein the multi-core terminal head and the multi-core connector are inserted together, and the two ends of the inserted multi-core terminal head and the multi-core connector are fixed to the mounting frame by connecting bolts (5); characterized in that: A rectangular slot (6) is provided on the base plate for a multi-core terminal block to pass through and for the mounting frame to be inserted. The mounting frame has first bolt holes (7) at both ends. The base plate (4) on the outer side of the rectangular slot has second bolt holes (10) that match the first bolt holes. The mounting frame is fixed in the rectangular slot by screws screwed into the first and second bolt holes. The base plate (4) is fixed to the inverter cabinet door (13). The wiring harness from the inverter cavity (14) to the cabinet door device is plugged into the multi-core terminal head (1). The wiring harness from the cabinet door device to the inverter cavity is plugged into the multi-core terminal block (2).

2. The wire-to-wire connector for use in explosion-proof frequency converters according to claim 1, characterized in that: A side plate (8) is fixed to one end of the base plate (4) away from the rectangular slot (6). A third bolt hole (9) is provided on the side plate. The side plate and the base plate are integrally bent. The base plate is fixed to the inverter cabinet door (13) by screws passing through the third bolt hole.

3. The wire-to-wire connector used in explosion-proof frequency converters according to claim 1 or 2, characterized in that: The mounting frame (3) is provided with limiting ear plates (11) at both ends, which are inserted into rectangular slots (6).

4. The wire-to-wire connector used in explosion-proof frequency converters according to claim 1 or 2, characterized in that: The wiring harness connecting the inverter cavity (14) and the multi-core terminal (1) is wrapped with a PP hose.

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