KR-102961633-B1 - Wiring manufacturing method of brushless motor for air compressor of hydrogen car

Abstract

The present invention relates to a direct fusing method between a coil and a cable of a brushless motor for a hydrogen vehicle air compressor. In the fusing method of a brushless motor for a hydrogen vehicle air compressor, the fusing is performed by a direct fusing method between a coil and a cable, wherein base materials are brought into contact with each other and current is passed through while applying pressure, thereby generating heat due to contact resistance and the resistivity of the metal itself, and when heated by such heat, pressure is applied to bring them into contact. The present invention has the significant effects of process reduction, cost reduction, and quality improvement due to direct fusion between the motor coil and the cable.

Inventors

• 정진근
• 김태연

Assignees

• 효성전기주식회사

Dates

Publication Date

20260507

Application Date

20221026

Claims (3)

1. As a fusing method for a brushless motor for a hydrogen vehicle air compressor, the fusing is a direct fusing method between a coil and a cable, and the direct fusing method between the coil and the cable is a method in which base materials are brought into contact with each other and current is passed through to generate heat due to contact resistance and the resistivity of the metal itself, and contact occurs when heated by such heat, and the fusing method is a method for manufacturing a wiring of a brushless motor for a hydrogen vehicle air compressor that applies pressure during fusing. Regarding the insulation of the brushless motor mentioned above, inter-phase insulation is a method of preventing the passage of electricity or heat through an additional structure because heat conduction occurs between adjacent phases. This additional structure involves the application of insulating paper, and there are three types of insulating paper: inter-phase insulating paper, wedge insulating paper, and slot insulating paper. Interphase insulating paper is used for secondary insulation between slots, wedge insulating paper is used for spacing between slots and coils, and slot insulating paper is used for insulation between the core slots and coils, wherein the wedge insulating paper also serves as interphase insulating paper. The above wedge insulation structure is shaped like a plate with a hole formed in the center, with the upper edge being a rounded shape convex upward and the lower edge being a horizontal plate, and the lower edge being a rounded shape convex downward and the upper edge being a horizontal plate, while the left and right sides are shaped like vertical plates, forming a closed curve that is symmetrical in all directions. It is cut to completely insulate the slot and the coil, and since the upper and lower edges of the central hole also form a curve, the left and right sides, which are the upper interlayer portions of the wedge insulation, are inserted between the copper wires. A method for manufacturing a connection of a brushless motor for a hydrogen vehicle air compressor, characterized by the fact that inter-phase insulation is achieved along with wedge insulation due to the left and right side structure of the inter-phase portion of the wedge insulation paper.
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Description

Wiring manufacturing method of brushless motor for air compressor of hydrogen car The present invention relates to a direct fusing method between a coil and a cable of a brushless motor for a hydrogen vehicle air compressor, and more specifically, to a direct fusing method between a coil and a cable of a brushless motor for a hydrogen vehicle air compressor that results in process reduction, cost reduction, and quality improvement through direct fusing between the motor coil and the cable. In general, regarding a method of direct fusing between a coil and a cable of a motor, Korean Patent Publication No. 10-1994-7003093 describes a brushless motor comprising: a rotor part having a rotor magnet (7); a stator part having a winding (4) radially opposite to the magnet (7) and a stator core (3) on which the winding (4) is wound; a driving circuit (18) on a circuit board (9) electrically connected to the winding (4) wound on the stator core (3); a terminal (6) that relays the electrical connection between the winding and the driving circuit (18), having a clamping part (6b) that holds the winding (4) and is electrically connected, and a connection part (6c) that is electrically connected to a land part (19) of the driving circuit (18) on the circuit board (9); and a core holder (5) that holds the terminal (6). In this brushless motor, the terminal (6) is the core holder (5) A brushless motor is disclosed, characterized in that it is installed on a surface facing a circuit board (9), and at least the clamping portion (6b) and the connecting portion (6c) are arranged almost parallel to the circuit board (9), and the connecting portion (6c) is positioned closer to the circuit board than the clamping portion (6b). Additionally, Patent No. 10-0245233 discloses a method for welding a commutator in a motor. However, conventionally, terminals and sleeves were applied as the motor fusing method, which had the disadvantages of a complex process, reduced quality, and increased costs. Figure 1 is an internal photograph of the brushless motor for a hydrogen vehicle air compressor according to the present invention. Figure 2 is a detailed photograph of Figure 1. Figure 3 is a photograph of the brushless motor housing for a hydrogen vehicle air compressor according to the present invention. FIG. 4 is a photograph of the Brushless Motor housing for a hydrogen vehicle air compressor of the present invention in a horizontal position. FIG. 5 is a photograph of a jig for press-fitting the motor stator of a brushless motor for a hydrogen vehicle air compressor according to the present invention. Figure 6 is a planar photograph of Figure 5. Figure 7 is a photograph of the potting process of the Brushless Motor for a hydrogen vehicle air compressor according to the present invention. FIG. 8 shows the stator press-fit structure of a conventional brushless motor for a hydrogen vehicle air compressor. FIG. 9 shows the stator press-fit structure of a brushless motor for a hydrogen vehicle air compressor according to the present invention. FIG. 10 is a coil-by-terminal fuse configuration diagram of a conventional brushless motor for an air compressor. FIG. 11 is a diagram showing the configuration of a direct fusing method between a coil and a cable of a brushless motor for a hydrogen vehicle air compressor according to the present invention. FIG. 12 is a process diagram of the housing salt core of a brushless motor for a hydrogen vehicle air compressor according to the present invention. FIG. 13 shows a conventional insulation method for a brushless motor for a high-voltage hydrogen vehicle air compressor. FIG. 14 shows the insulation structure of a brushless motor for a high-voltage hydrogen vehicle air compressor according to the present invention. FIG. 15 is an insulation structure of a brushless motor for a high-voltage hydrogen vehicle air compressor according to another embodiment of the present invention. The invention relates to a direct fusing method between a coil and a cable of a brushless motor for a hydrogen vehicle air compressor, wherein the fusing method of the brushless motor for a hydrogen vehicle air compressor is characterized in that the fusing is a direct fusing method between a coil and a cable. In addition, the direct fusing method between the coil and the coil described above is characterized by bringing the base materials into contact with each other and applying pressure while passing current, thereby generating heat due to contact resistance and the resistivity of the metal itself, and applying pressure to bring them into contact when heated by that heat. In addition, the above fusing method is characterized by applying pressure during fusing. The present invention will be described in detail with reference to the attached drawings as follows. FIG. 1 is an internal photograph of the Brushless Motor for a Hydrogen Vehicle Air Compressor according to the present invention, FIG. 2 is a detailed photograph of FIG. 1