A marine generator stator lamination

Abstract

The utility model relates to a marine generator stator lamination, through the stator lamination structure of assembly type, can conveniently and quickly carry out the reconstruction to the ship, makes the ship not to dismount propeller shaft, can quickly, simply complete the installation of stator core, has improved ship reconstruction efficiency obviously, and replaces traditional diesel generator, directly utilizes propeller shaft power generation to provide the power for crew life, further reduces the ship operation cost.

Description

Technical Field

[0001] This utility model relates to a stator lamination for a marine generator. Background Technology

[0002] During ship operation, the crew's electricity needs mainly rely on the ship's diesel generators. However, additional diesel generators are not only expensive, but also increase the ship's fuel consumption and maintenance costs. Therefore, in order to reduce operating costs and improve energy efficiency, existing technology has proposed a scheme to generate electricity using the ship's propeller shaft. This involves setting a stator core outside the propeller shaft and using the propeller shaft itself as a rotating rotor to generate electricity during ship operation, thereby meeting the crew's electricity needs.

[0003] However, this technical solution faces a key problem in practical application: the installation of the stator core is difficult. Traditional excitation stator laminations are ring-shaped and are formed by stamping a single piece of material. This means that the propeller shaft must be disassembled before installation can be completed. The disassembly process of the propeller shaft is complex, the installation process is cumbersome and inefficient, and it is not suitable for the rapid modification of actual ships.

[0004] Therefore, how to achieve convenient installation of the stator core without disassembling the propeller shaft has become a key issue that needs to be addressed in this technical solution. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a stator lamination for a marine generator. Through a modular assembly design, the stator lamination allows for convenient installation of the stator core without disassembling the propeller shaft. This purpose is achieved as follows:

[0006] This utility model proposes a stator lamination for a marine generator, comprising a first lamination unit and a second lamination unit. The first lamination unit has a pitch angle of 7.5 degrees and includes several teeth extending radially inward. The second lamination unit has a pitch angle of 15 degrees and includes several teeth extending radially inward. The first and second lamination units are arranged alternately and connected end-to-end to form a ring structure. Several ring structures are provided, and the ring structures are arranged vertically and vertically. The first lamination units and second lamination units of adjacent ring structures are staggered at a 15-degree angle. The first and second lamination units are fixed by welding and / or connecting parts.

[0007] Furthermore, the first lamination unit has 8 teeth, and the second lamination unit has 16 teeth. The teeth on the first lamination unit are equidistant from each other in a circle, and the teeth on the second lamination unit are equidistant from each other in a circle.

[0008] Furthermore, adjacent annular structures are provided with a first angle of intersection, where the first angle is the pitch angle of the teeth.

[0009] Furthermore, the connector includes a connecting block and a connecting rod. The connecting block is fixed to both sides of the annular device, and the two sides of the connecting block are respectively fixed to the first stamping unit and the second stamping unit through the connecting rod.

[0010] Furthermore, the ring structures are fixed together as a single unit by bolt assemblies.

[0011] Furthermore, the outer sides of the first and second lamination units are provided with slots.

[0012] Furthermore, both the first and second lamination units are made of silicon steel sheets.

[0013] Compared with the prior art, the beneficial effects of this utility model are: through the assembled stator lamination structure, the ship can be modified conveniently and quickly, so that the ship does not need to disassemble the propeller shaft, and the stator core can be installed quickly and easily, which significantly improves the efficiency of ship modification. In addition, it replaces the traditional diesel generator and directly uses the propeller shaft to generate electricity to provide electricity for the crew's living quarters, thereby reducing the ship's operating costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front mounting structure of a marine generator stator lamination;

[0015] Figure 2 This is a schematic diagram of the side mounting structure of a marine generator stator lamination;

[0016] Figure 3 This is a front structural diagram of the first lamination unit of a marine generator stator lamination;

[0017] Figure 4 This is a front structural diagram of the second lamination unit of a marine generator stator lamination;

[0018] In the figure: 1. Stator lamination, 2. First lamination unit, 3. Second lamination unit, 4. Connector, 5. Connecting block, 6. Connecting rod, 7. Slot, 8. Tooth, 9. Bolt assembly. Detailed Implementation

[0019] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0020] Please refer to Figure 1-4 This utility model provides a stator lamination 1 for a marine generator, including a first lamination unit 2 and a second lamination unit 3. The first lamination unit 2 has a pitch angle of 7.5 degrees and includes several teeth 8 extending radially inward. The second lamination unit 3 has a pitch angle of 15 degrees and includes several teeth 8 extending radially inward. The first lamination unit 2 and the second lamination unit 3 are arranged alternately and connected end to end in a ring structure. Several ring structures are provided, and the ring structures are arranged vertically and vertically. The first lamination unit 2 and the second lamination unit 3 of adjacent ring structures are staggered at a 15-degree angle. The first lamination unit 2 and the second lamination unit 3 are fixed by welding and / or connecting parts 4.

[0021] It is understood that after installation, the stator lamination 1 of the present invention will not overlap the first lamination unit 2 and each second lamination unit 3 in at least 8 places, and the connecting seams between them will overlap. Therefore, rapid assembly can be achieved. For example, taking the structure between two connecting seams as a unit, the core thickness direction is first installed and fixed with bolt assembly 9, and then the connector 4 is installed into a ring structure. Therefore, 8 sets of connector 4 are required.

[0022] In this embodiment, the first lamination unit 2 has 8 teeth 8, and the second lamination unit 3 has 16 teeth 8. The teeth 8 on the first lamination unit 2 are equidistantly distributed in a circular pattern, and the teeth 8 on the second lamination unit 3 are equidistantly distributed in a circular pattern. The first lamination unit 2 has 8 teeth 8, and the second lamination unit 3 has 16 teeth 8. All teeth 8 are equidistantly distributed in a circular pattern to ensure uniform conduction of magnetic flux in the iron core.

[0023] Furthermore, such as Figure 2 As shown in the figure, it can be seen that there is also a first angle of stagger between adjacent annular structures. The first angle is the indexing angle of the tooth 8, in order to reduce electrical impact and reduce the slope content.

[0024] Furthermore, the connector 4 includes a connecting block 5 and a connecting rod 6. The connecting block 5 is fixed to both sides of the ring device. The two sides of the connecting block 5 are respectively fixed to the first lamination unit 2 and the second lamination unit 3 through the connecting rod 6, so as to further enhance the overall rigidity of the stator core. The use of the connector 4 as a fixing method allows each lamination unit to be tightly connected while facilitating disassembly and installation.

[0025] Furthermore, the annular structures are fixed together as a whole by bolt assembly 9 to further enhance the overall rigidity of the stator core.

[0026] Furthermore, the outer sides of the first lamination unit 2 and the second lamination unit 3 are provided with a groove 7.

[0027] Furthermore, both the first lamination unit 2 and the second lamination unit 3 are made of silicon steel sheets. Silicon steel sheets have low iron loss and high permeability, which can effectively reduce eddy current loss and hysteresis loss and improve the energy efficiency ratio of the excitation stator.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stator lamination for a marine generator, characterized in that, The assembly includes a first lamination unit and a second lamination unit. The first lamination unit has a pitch angle of 7.5 degrees and includes several teeth extending radially inward. The second lamination unit has a pitch angle of 15 degrees and includes several teeth extending radially inward. The first and second lamination units are arranged alternately and connected end-to-end to form a ring structure. Several ring structures are provided, and the ring structures are arranged vertically and vertically. The first and second lamination units of adjacent ring structures are staggered at a 15-degree angle. The first and second lamination units are fixed by welding and / or connectors.

2. The stator lamination for a marine generator according to claim 1, characterized in that, The first stamping unit has 8 teeth, and the second stamping unit has 16 teeth. The teeth on the first stamping unit are equidistant from each other in a circle, and the teeth on the second stamping unit are equidistant from each other in a circle.

3. The stator lamination for a marine generator according to claim 2, characterized in that, The adjacent annular structures are also provided with a first angle of intersection, where the first angle is the pitch angle of the teeth.

4. The stator lamination for a marine generator according to claim 1, characterized in that, The connector includes a connecting block and a connecting rod. The connecting block is fixed to both sides of the annular device. The two sides of the connecting block are respectively fixed to the first stamping unit and the second stamping unit through the connecting rod.

5. A stator lamination for a marine generator according to any one of claims 1-4, characterized in that, The ring structures are fixed together as a whole by bolt assemblies.

6. The stator lamination for a marine generator according to claim 1, characterized in that, The outer sides of the first and second lamination units are provided with slots.

7. The stator lamination for a marine generator according to claim 1, characterized in that, Both the first and second lamination units are made of silicon steel sheets.

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