A wiring mechanism for an axial flux motor

Abstract

This utility model discloses a wiring mechanism for an axial flux motor, including a box side plate. A top cover plate is fixedly connected to the top of the box side plate, and an upper end cover is fixedly connected to one side of the outer surface of the top cover plate. Multiple waterproof metal glands are fixedly installed on one side of the outer surface of the upper end cover. An upper terminal block and a lower terminal block are fixedly installed inside the box side plate. In this utility model, through the upper terminal block, shaped copper busbar, lower terminal block, and waterproof metal glands, the high-voltage wiring harness is connected to the motor through the waterproof metal glands. When installing the high-voltage wiring harness, it is not necessary to open the junction box cover plate, avoiding the risk of water leakage due to improper installation of the junction box cover plate and the risk of accidentally dropping the flange nut into the motor when opening the junction box cover plate to install it. This method of installing the high-voltage wiring harness also improves assembly efficiency and avoids poor contact and intermittent connections caused by improper assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage wiring harness connection structure for disc motors, and in particular to a wiring mechanism for an axial flux motor. Background Technology

[0002] Based on the direction of the magnetic flux path, motors can be divided into axial flux motors and radial flux motors. Although the directions of the magnetic flux are different, their working principles both follow the basic laws of electromagnetism. In an axial flux motor, the stator poles are arranged along the axis, and the rotor is typically a cylindrical structure. The magnetic flux passes through the central axis of the rotor. When current flows through the stator windings, the generated magnetic field passes through the rotor along the axial direction. According to the Lorentz force law, this magnetic field generates torque in the rotor, thereby driving the rotor to rotate. The air gap of an axial flux motor is planar, with a short axial length, resulting in a thin disc shape; hence, it is also called a disc motor.

[0003] Due to their structural characteristics, disc motors are favored in the fields of engineering machinery, industrial motors, and marine engineering. The flat design of disc motors allows for flexible layout for customers. However, there are certain drawbacks in the current high-voltage wiring: Currently, the high-voltage wiring harness of motors generally consists of three wires, which are connected from the outside of the motor to the inside of the motor junction box. When installing the high-voltage wiring harness, it is necessary to open the junction box cover and connect the high-voltage wiring harness from any of the four sides of the junction box. The terminals of the high-voltage wiring harness are then attached to the terminal block bolts, and flange nuts are used to fix the high-voltage wiring harness terminals together with the three-phase terminals of the motor on the terminal block bolts.

[0004] However, opening the junction box cover to install the high-voltage wiring harness poses a risk of foreign objects falling into the motor. Furthermore, the high-voltage wiring harness terminals need to be hooked onto the terminal block bolts, which is inconvenient due to the limited space in the junction box. Since the junction box cover is directly above the motor, improper installation could lead to water leakage. Additionally, the mounting bolts on the junction box cover are small, and frequent disassembly of the bolts and the threaded holes in the junction box could cause damage.

[0005] Therefore, this utility model proposes an axial flux motor wiring mechanism. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an axial flux motor wiring mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an axial flux motor wiring mechanism, including a box side plate, a top cover plate fixedly connected to the top of the box side plate, an upper end cover fixedly connected to one side of the outer surface of the upper cover plate, a plurality of metal waterproof glands fixedly installed on one side of the outer surface of the upper end cover, an upper terminal block and a lower terminal block fixedly installed inside the box side plate, and a special-shaped copper busbar abutting between the upper terminal block and the lower terminal block.

[0008] Furthermore, a first terminal block is fixedly installed on the inner side of the upper terminal block, and another first terminal block is abutted on one side of the outer surface of the shaped copper busbar. The first terminal block and the side wall of the lower terminal block are connected by a threaded fixing bolt.

[0009] Furthermore, a terminal block is fixedly installed inside the side panel of the box, and two second terminals are fixedly installed on one side of the outer surface of the terminal block.

[0010] Furthermore, a side cover is hinged to one side of the outer surface of the box side panel, and the side cover is located on the outer surface of the box side panel near the terminal block.

[0011] Furthermore, a side end cover is fixedly connected to one side of the outer surface of the box side panel. The position of the side end cover corresponds to the position of the lower wiring bar, and multiple waterproof plugs are inserted into one side of the outer surface of the side end cover.

[0012] Furthermore, a lower base plate is fixedly connected to the bottom of the side panel of the box, and the side wall of the lower base plate is provided with an installation groove.

[0013] Furthermore, the upper terminal block and the lower terminal block are located directly below the upper end cover.

[0014] This utility model has the following beneficial effects:

[0015] In use, this axial flux motor wiring mechanism, through its upper terminal block, shaped copper busbar, lower terminal block, and waterproof metal gland, allows the high-voltage harness to be connected to the motor via the waterproof metal gland. This eliminates the need to open the junction box cover during high-voltage harness installation, avoiding the risk of water leakage due to improper cover installation and the risk of the harness accidentally falling into the motor when installing the flange nut. This high-voltage harness installation method also improves assembly efficiency and avoids poor contact and intermittent connections caused by improper assembly. Furthermore, the junction box's internal terminal block has a two-layer structure, with each phase connected by a shaped copper busbar, significantly reducing the assembly difficulty of the high-voltage harness, avoiding potential failure risks, and increasing the reliability of the motor structure. Attached Figure Description

[0016] Figure 1 This is a first-view overall structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0018] Figure 3 This is a schematic diagram of the connection structure between the upper and lower terminal blocks of this utility model.

[0019] Legend:

[0020] 1. Box side panel; 2. Top cover; 3. Bottom plate; 4. Top cover; 5. Metal waterproof gland; 6. Side cover; 7. Waterproof plug; 8. Mounting groove; 9. Upper terminal block; 10. Lower terminal block; 11. Irregular copper busbar; 12. Fixing bolt; 13. Terminal block; 14. First terminal; 15. Second terminal; 16. Side cover. Detailed Implementation

[0021] Figures 1 to 3 As shown, an axial flux motor wiring mechanism is disclosed, including a box side plate 1, an upper cover plate 2 fixedly connected to the top of the box side plate 1, an upper end cover 4 fixedly connected to one side of the outer surface of the upper cover plate 2, and multiple metal waterproof glands 5 fixedly installed on one side of the outer surface of the upper end cover 4. A lower bottom plate 3 is fixedly connected to the bottom of the box side plate 1, and an installation groove 8 is provided on the side wall of the lower bottom plate 3. The upper cover plate 2, the box side plate 1, and the lower bottom plate 3 together form a junction box structure. An upper terminal block 9 and a lower terminal block 10 are fixedly installed inside the box side plate 1, and a special-shaped copper busbar 11 abuts between the upper terminal block 9 and the lower terminal block 10.

[0022] The metal waterproof gland 5 is made of metal or high-strength plastic material, which has strong durability and corrosion resistance. It is also known as a cable waterproof connector. The external high-voltage wire harness is connected to the inside of the junction box through the metal waterproof gland 5, and then to the inside of the axial flux motor. It can not only firmly fix the cable to prevent it from loosening or falling off, and protect the safety of the connection between the cable and the upper end cover 4, but also has good sealing performance to prevent water, dust and other external factors from entering, ensuring the stability and longevity of the cable connection, effectively resisting the influence of the external environment on the electrical connection inside the junction box, and greatly improving the stability and safety of the entire motor system.

[0023] The upper terminal block 9 and the lower terminal block 10 are located directly below the upper end cover 4. A first terminal block 14 is fixedly installed on the inner side of the upper terminal block 9. Another first terminal block 14 abuts against one side of the outer surface of the shaped copper busbar 11. The first terminal block 14 and the side wall of the lower terminal block 10 are connected by a threaded fixing bolt 12.

[0024] The irregularly shaped copper busbar 11 has through holes at both ends. These through holes are designed to prevent bolts from passing through, thus ensuring the fixation of the irregularly shaped copper busbar 11. Figure 2 As shown, the upper terminal block 9 is connected to the three-phase wires inside the motor through the first terminal block 14 on the inner side, and the lower terminal block 10 is connected to the external high-voltage wire harness through another first terminal block 14 on one side of the outer surface, with the middle connected by a special-shaped copper busbar 11.

[0025] Correspondingly, a side end cover 6 is fixedly connected to one side of the outer surface of the side panel 1 of the box body. The position of the side end cover 6 corresponds to the position of the lower wiring bar 10. Multiple waterproof plugs 7 (with sealing rings on the outer ring of the waterproof plugs 7) are inserted into one side of the outer surface of the side end cover 6. Multiple bolt mounting holes are opened on the side wall of the side end cover 6 to facilitate the passage of the fixing bolts 12.

[0026] When it is necessary to connect the high-voltage wiring harness, first pull out the waterproof plug 7 to expose the bolt mounting hole of the side end cover 6. Use the installation tool to pass the fixing bolt 12 through the first terminal block 14 and the special copper busbar 11, and then screw it into the side wall of the lower terminal block 10 to complete the assembly between the high-voltage wiring harness and the junction box.

[0027] A terminal block 13 is fixedly installed inside the side panel 1 of the box. Two second terminals 15 are fixedly installed on one side of the outer surface of the terminal block 13. Correspondingly, a side cover 16 is hinged to one side of the outer surface of the side panel 1 of the box. The side cover 16 is located on the side of the side panel 1 of the box near the outer surface of the terminal block 13, similar to the principle of the upper terminal block 9 and the lower terminal block 10. The structure of the terminal block 13 is not limited to two layers. It is designed as an integral terminal block and connected by pre-embedded copper busbars, so as to connect with the external cable and the internal cable of the motor respectively, and conduct the connection between the two.

[0028] When using the axial flux motor wiring mechanism, the junction box structure, which consists of the upper cover plate 2, the side plate 1, and the lower base plate 3, is installed at the wiring terminal of the axial flux motor. The external high-voltage wire harness is connected to the inside of the junction box through the metal waterproof gland 5, and then connected to the inside of the axial flux motor. When installing the high-voltage wire harness, it is not necessary to open the junction box cover plate, which avoids the risk of water leakage caused by improper installation of the junction box cover plate and the risk of accidentally falling into the motor when opening the junction box cover plate to install the flange nut. This method of installing the high-voltage wire harness can also improve assembly efficiency and avoid poor contact and loose connection caused by improper assembly.

[0029] Furthermore, the two terminal blocks inside the motor junction box are installed one above the other, with each phase connected by a special-shaped copper busbar 11. The upper terminal block 9 is connected to the three-phase wires inside the motor through the first terminal 14 on the inner side, and the lower terminal block 10 is connected to the external high-voltage harness through another first terminal 14 on one side of the outer surface. The connection is made through the special-shaped copper busbar 11. This connection method greatly reduces the assembly difficulty of the high-voltage harness, avoids potential failure risks, and increases the reliability of the motor structure.

[0030] When it is necessary to connect the high-voltage wire harness, first pull out the waterproof plug 7 to expose the bolt mounting hole of the side end cover 6. Use the installation tool to pass the fixing bolt 12 through the first terminal 14 and the special copper busbar 11, and then screw it into the side wall of the lower terminal block 10 to complete the assembly between the high-voltage wire harness and the junction box.

[0031] The technical solution of this application can be applied to a separate structure of junction box and end cover (a similar structure exists for disc hubs), or to an integrated structure of junction box and end cover. This technical solution can greatly improve the efficiency of wire harness installation, reduce the risk of foreign objects entering the motor, and is not only suitable for industrial applications but also demonstrates good reliability in the automotive and marine industries.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An axial flux motor connection mechanism comprising a box side plate (1), characterised in that: The top of the box side plate (1) is fixedly connected to the top cover plate (2), and the outer surface of the upper cover plate (2) is fixedly connected to the upper end cover (4). Multiple metal waterproof glands (5) are fixedly installed on the outer surface of the upper end cover (4). The upper terminal block (9) and the lower terminal block (10) are fixedly installed inside the box side plate (1), and the upper terminal block (9) and the lower terminal block (10) are jointly abutted by a special-shaped copper busbar (11).

2. An axial flux machine connection arrangement according to claim 1, characterised in that: The inner side of the upper terminal block (9) is fixedly installed with a first terminal (14), and the outer surface of the shaped copper busbar (11) abuts against another first terminal (14). The first terminal (14) and the side wall of the lower terminal block (10) are connected by a fixing bolt (12) through thread.

3. The axial flux motor wiring mechanism according to claim 1, characterized in that: A terminal block (13) is fixedly installed inside the side panel (1) of the box body, and two second terminals (15) are fixedly installed on one side of the outer surface of the terminal block (13).

4. The axial flux motor wiring mechanism according to claim 3, characterized in that: A side cover (16) is hinged to one side of the outer surface of the box side plate (1), and the side cover (16) is located on the outer surface of the box side plate (1) near the wiring bar (13).

5. The axial flux motor wiring mechanism according to claim 2, characterized in that: A side end cover (6) is fixedly connected to one side of the outer surface of the side panel (1) of the box body. The position of the side end cover (6) corresponds to the position of the lower wiring bar (10), and multiple waterproof plugs (7) are inserted into one side of the outer surface of the side end cover (6).

6. The axial flux motor wiring mechanism according to claim 1, characterized in that: The bottom of the side panel (1) of the box is fixedly connected to a lower base plate (3), and the side wall of the lower base plate (3) is provided with an installation groove (8).

7. The axial flux motor wiring mechanism according to claim 1, characterized in that: The upper terminal block (9) and the lower terminal block (10) are located directly below the upper end cover (4).

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