Marine low-voltage high-power motor junction box
By using bent conductive frames and step-shaped wiring components in marine low-voltage high-power motor junction boxes, the problem that traditional junction boxes cannot meet the multi-lead needs is solved, and safe and efficient wiring operations are achieved.
Patent Information
- Application Number
- CN202421611835.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The traditional junction box design cannot meet the multi-lead needs of marine low-voltage high-power motors, resulting in difficulty in wiring operation and safety hazards.
A marine low-voltage high-power motor junction box is designed, and a conductive frame with a bent structure and a stepped wiring assembly are used to increase the wiring capacity in the junction box, and fixed by insulating support and angle iron to ensure parallel wiring between the motor lead wire and the power access wire, and an additional grounding row is added to improve safety.
It realizes convenient wiring between the motor lead-out line and power access line, improves wiring safety, enhances the capacity and grounding performance of the junction box, and meets the wiring needs of high-power motors.
Smart Images
Figure CN223181938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor manufacturing, in particular to a wiring box for a low-voltage high-power marine motor. Background Art
[0002] Due to the electrical system limitations on ships, most marine motors use low voltage electricity. However, for large ships, the main propulsion and side propulsion motors are their core power components, and the power of these motors is often extremely large, and some can even reach more than 3 megawatts (MW). This high power directly leads to a very large rated current of the motor, and thus the number of motor leads increases significantly.
[0003] The traditional wiring box design is unable to cope when faced with such high-power and multi-lead motors. First, the capacity of the traditional wiring box is limited and cannot meet the requirements of so many leads and connection points. Second, due to the limited internal space of the wiring box, too many leads and connection points also make the wiring operation difficult and may even cause potential safety hazards.
[0004] To solve this problem, it is urgent to design a wiring box for a low-voltage high-power marine motor. Content of the Utility Model
[0005] The applicant of the present utility model aims at the above-mentioned disadvantages in the existing production technology and provides a wiring box for a low-voltage high-power marine motor, thereby solving the problem of difficult wiring inside the wiring box for a low-voltage high-power marine motor.
[0006] The technical solution adopted by the present utility model is as follows: a wiring box for a low-voltage high-power marine motor, including a wiring box seat, the wiring box seat is a box body structure with an opening, a wiring box cover is arranged on the opening surface of the wiring box seat, and a sealing gasket is arranged at the contact end of the wiring box cover and the wiring box seat; at least one wiring component is arranged inside the wiring box seat; the structure of the wiring component is: including an insulating support member fixed at both ends, a conductive frame is installed on the insulating support member, the conductive frame is a bent structure, one end of the conductive frame is connected to the motor lead-out wire, and the other end of the conductive frame is connected to the power supply access wire; a grounding bar is also arranged at the bottom of the wiring box seat.
[0007] As a further improvement of the above technical solution:
[0008] Preferably, a wire passing board is arranged on one side of the wiring box seat opposite to the wiring box cover, and a plurality of through holes for the motor lead-out wire to enter the wiring box are evenly distributed on the wire passing board.
[0009] Preferably, angle irons are arranged on both sides of the wiring box seat, and the angle irons are used to fix the insulating support member.
[0010] Preferably, 3 groups of wiring components are arranged, and the 3 groups of wiring components are arranged in a stepped manner inside the wiring box seat.
[0011] Preferably, the structure of the insulating support is as follows: it includes a supporting column body, and angle iron assembly holes are provided at both ends of the supporting column body and are assembled with angle iron bolts through the angle iron assembly holes; a conductive frame assembly hole is provided at the middle position of the supporting column body.
[0012] Preferably, the structure of the conductive frame is as follows: it is a bent plate body structure, forming an upper wiring part and a lower wiring part; a support assembly hole is provided on the upper wiring part, and the insulating support is connected to the conductive frame by corresponding matching installation of the support assembly hole on the insulating support and the conductive frame assembly hole of the conductive frame.
[0013] Preferably, an upper wiring hole for connecting to the motor lead wire is further provided on the upper wiring part.
[0014] Preferably, the motor lead wire and the upper wiring hole are fixed by bolt assembly.
[0015] Preferably, a lower wiring hole for connecting to the power supply access wire is further provided on the lower wiring part.
[0016] Preferably, the power supply access wire and the lower wiring hole are fixed by bolt assembly.
[0017] The beneficial effects of the present utility model are as follows:
[0018] The structure of the present utility model is reasonable. By arranging a plurality of wiring components in a stepped manner in the junction box seat, whether it is the motor lead wire or the power supply access wire, the wiring planes are staggered in a stepped manner, with distinct levels, which not only facilitates wiring but also improves safety.
[0019] The present utility model further includes the following advantages:
[0020] (1) The present utility model adds a bent conductive frame, and the lead wire does not need to be bent by 90°; and the wiring plane of the power supply access wire is also parallel to the incoming direction of the access wire, which is convenient for wiring.
[0021] (2) The number of wiring posts in the junction box seat of the present utility model is not limited. As long as the space permits, holes can be drilled on the conductive frame according to the number of lead wires and wiring post bolts can be installed, and copper joints can be pressed on both the front and back sides of the conductive frame, so that the number of wirings can be greatly increased to meet the wiring needs.
[0022] (3) The present utility model is equipped with a grounding bar at the lower part inside the junction box seat, greatly increasing the grounding positions and meeting the grounding requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic external structure diagram of the present utility model.
[0024] Figure 2This is the front view of the internal structure of the present utility model. (The junction box cover is hidden.)
[0025] Figure 3 is Figure 2 the side view of. (The junction box base is hidden.)
[0026] Figure 4 is Figure 3 the three-dimensional state diagram of.
[0027] Figure 5 This is the structural schematic diagram of the conductive frame of the present utility model.
[0028] Figure 6 This is the structural schematic diagram of the insulating support member of the present utility model.
[0029] Wherein: 1. Junction box base; 2. Junction box cover; 3. Sealing gasket; 4. Insulating support member; 5. Conductive frame; 6. Grounding bar; 7. Wire-passing board; 8. Motor lead wire; 9. Power supply access wire; 10. Angle iron;
[0030] 41. Support column body; 42. Angle iron assembly hole; 43. Conductive frame assembly hole;
[0031] 51. Upper wiring part; 52. Lower wiring part; 53. Support member assembly hole; 54. Upper wiring hole; 55. Lower wiring hole. Specific embodiments
[0032] The following combines with the attached drawings to illustrate the specific embodiments of the present utility model.
[0033] As Figures 1 to 6 shown, the marine low-voltage high-power motor junction box of this embodiment includes a junction box base 1. The junction box base 1 is a box body structure with an opening. A junction box cover 2 is arranged on the opening surface of the junction box base 1. A sealing gasket 3 is arranged at the contact end of the junction box cover 2 and the junction box base 1; at least one wiring assembly is arranged in the junction box base 1; the structure of the wiring assembly is: including an insulating support member 4 fixed at both ends, a conductive frame 5 is installed on the insulating support member 4. The conductive frame 5 is a bent structure. One end of the conductive frame 5 is connected to the motor lead wire 8, and the other end of the conductive frame 5 is connected to the power supply access wire 9; a grounding bar 6 is also arranged at the bottom of the junction box base 1. A wire-passing board 7 is arranged on the side surface of the junction box base 1 opposite to the junction box cover 2. A plurality of through holes for the motor lead wire 8 to enter the junction box base 1 are evenly distributed on the wire-passing board 7.
[0034] In this embodiment, angle irons 10 are arranged on both sides of the junction box base 1, and the angle irons 10 are used to fix the insulating support member 4.
[0035] In this embodiment, three sets of wiring components are provided, and the three sets of wiring components are arranged in a stepped manner in the junction box base 1; Exemplarily, corresponding phase sequence symbols (U, V, W) are engraved on the conductive frames 5 of the three sets of wiring components respectively, and the three-phase power supply access lines are connected to the corresponding conductive frames 5 according to the phase sequence identification, thus completing the wiring without the need to additionally equip a wiring diagram, which is simple and not error-prone.
[0036] In this embodiment, the structure of the insulating support 4 is as follows: It includes a supporting column body 41, and angle iron assembly holes 42 are provided at both ends of the supporting column body 41, and the angle iron assembly holes 42 are bolt-assembled with the angle iron 10; A conductive frame assembly hole 43 is provided at the middle position of the supporting column body 41.
[0037] In this embodiment, the structure of the conductive frame 5 is as follows: It is a bent plate structure, forming an upper wiring part 51 and a lower wiring part 52; A support assembly hole 53 is provided on the upper wiring part 51, and the support assembly hole 53 on the conductive frame 5 corresponds to and is matched with the conductive frame assembly hole 43 of the insulating support 4 for installation, so that the insulating support 4 is connected to the conductive frame 5.
[0038] In this embodiment, an upper wiring hole 54 for connecting with the motor lead-out wire 8 is further provided on the upper wiring part 51.
[0039] In this embodiment, the motor lead-out wire 8 and the upper wiring hole 54 are fixed by bolt assembly.
[0040] In this embodiment, a lower wiring hole 55 for connecting with the power supply access line 9 is further provided on the lower wiring part 52.
[0041] In this embodiment, the power supply access line 9 and the lower wiring hole 55 are fixed by bolt assembly.
[0042] In actual work, the installation method of the present utility model is as follows:
[0043] During installation, the insulating support 4 is fixed on the angle iron 10, and the angle iron assembly holes 42 on both sides of the insulating support 4 are aligned with the through holes on the angle iron 10 and fixed with bolts; Then the conductive frame 5 is fixed on the insulating support 4, and the support assembly hole 53 in the middle of the conductive frame 5 is aligned with the conductive frame assembly hole 43 in the middle of the insulating support 4 and fixed with bolts;
[0044] During wiring, the copper joint of the motor lead-out wire 8 is pressed on the upper wiring part 51 of the conductive frame 5 parallel to the lead-out direction of the lead-out wire, and fixed with bolts through the upper wiring hole 54; After the power supply access line 9 enters the junction box through the junction box inlet hole, the copper joint of the power supply access line 9 is pressed on the lower wiring part 52 of the conductive frame 5 parallel to the inlet direction of the access line, and fixed with bolts through the lower wiring hole 55;
[0045] The grounding bar 6 is installed on the convex platform below the junction box base 1, and the grounding wire in the power supply access wire 9 is connected to the grounding bar 6 and pressed tightly with bolts. After the lead wires are connected, the junction box cover 2 is covered.
[0046] The structure of the utility model is reasonable and the wiring operation is convenient. Whether it is the motor lead wire 8 or the power supply access wire 9, through three wiring components, the three-phase wiring plane is formed in a stepped stagger, with distinct levels, which is convenient for wiring and improves safety.
[0047] The above description is an explanation of the utility model, not a limitation of the utility model. For the scope defined by the utility model, refer to the claims. Any form of modification can be made within the protection scope of the utility model.
Claims
1. A low-voltage high-power motor junction box for ships, characterized in that: It includes a junction box base (1), the junction box base (1) is a box body structure with an opening, a junction box cover (2) is arranged on the opening surface of the junction box base (1), and a gasket (3) is arranged at the contact end between the junction box cover (2) and the junction box base (1); At least one wiring component is arranged in the junction box base (1); The structure of the wiring component is: including an insulating support (4) fixed at both ends, a conductive frame (5) is installed on the insulating support (4), the conductive frame (5) is a bent structure, one end of the conductive frame (5) is connected to the motor lead (8), and the other end of the conductive frame (5) is connected to the power supply access line (9); A grounding bar (6) is also arranged at the bottom of the junction box base (1).
2. The marine low-voltage high-power motor junction box according to claim 1, characterized in that: A wire passing board (7) is arranged on the side surface of the junction box base (1) opposite to the junction box cover (2), and a plurality of through holes for the motor lead (8) to enter the junction box base (1) are evenly distributed on the wire passing board (7).
3. The marine low-voltage high-power motor junction box according to claim 1, characterized in that: Angle irons (10) are arranged on both sides of the junction box base (1), and the angle irons (10) are used to fix the insulating support (4).
4. The marine low-voltage high-power motor terminal box according to claim 3, characterized in that: 3 wiring components are arranged, and the 3 wiring components are arranged in a stepped manner in the junction box base (1).
5. The marine low-voltage high-power motor junction box according to claim 4, characterized in that: The structure of the insulating support (4) is: including a support column body (41), angle iron assembly holes (42) are arranged at both ends of the support column body (41), and the angle iron assembly holes (42) are used for bolt assembly with the angle iron (10); A conductive frame assembly hole (43) is arranged at the middle position of the support column body (41).
6. The marine low-voltage high-power motor terminal box according to claim 4, characterized in that: The structure of the conductive frame (5) is: a bent plate body structure, forming an upper wiring part (51) and a lower wiring part (52); A support member assembly hole (53) is arranged on the upper wiring part (51), and the support member assembly hole (53) corresponds to and is matched with the conductive frame assembly hole (43) of the insulating support (4) for installation so that the insulating support (4) is connected to the conductive frame (5).
7. The marine low-voltage high-power motor terminal box according to claim 6, characterized in that: An upper wiring hole (54) for connecting to the motor lead (8) is also arranged on the upper wiring part (51).
8. The marine low-voltage high-power motor terminal box according to claim 7, characterized in that: The motor lead (8) and the upper wiring hole (54) are fixed by bolt assembly.
9. The low-voltage high-power motor terminal box for ships according to claim 6, characterized in that: A lower wiring hole (55) for connecting to the power supply access line (9) is also arranged on the lower wiring part (52).
10. The marine low-voltage high-power motor junction box according to claim 9, characterized in that: The power supply access line (9) and the lower wiring hole (55) are fixed by bolt assembly.