Novel low-cost permanent magnet synchronous motor outgoing line bar and insulation framework matched outgoing line structure

Abstract

The utility model discloses a novel low-cost permanent magnet synchronous motor outgoing line bar and insulation framework matched outgoing line structure, which relates to the technical field of permanent magnet synchronous motor outgoing line structures, and comprises an insulation framework, a winding and a stator core are arranged in the insulation framework, and a plurality of groups of GND wiring boards are embedded at the upper end of the insulation framework. The GND wiring board is connected with the insulation framework through the hook, the stability of connection between the GND wiring board and the insulation framework is ensured, the process complexity is reduced, and the assembly efficiency of the whole machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet synchronous motor outgoing line structures, in particular to a novel low-cost permanent magnet synchronous motor outgoing line structure in which an outgoing line row and an insulating frame are matched. Background Art

[0002] At present, the output of permanent magnet synchronous motors is mostly designed by designing terminal board assemblies, which are integrated by injection molding of copper bars and plastic parts, and the motor winding lead wires are resistance welded to the U-shaped clamps of the terminal board assembly, and the motor windings are led out from the inside to the outside through three-phase or six-phase PINs. This method has high requirements for the resistance welding process. Unreasonable process welding parameters will cause the contact between the U-shaped clamp and the wire package to be damaged to varying degrees, affecting the performance of the motor. Simple terminal board assemblies generally require 5 sets of molds for injection molding, GND terminal board, and U, V, W three-phase terminal board. For complex six-phase redundant motors, the number of molds is as high as 9 sets, and the mold costs are relatively high, which is not conducive to cost reduction of permanent magnet synchronous motors.

[0003] The Chinese utility model patent with announcement number CN214124986U discloses a wire output structure of a stator winding of a permanent magnet synchronous motor. The device reduces the space occupied by the wire output structure in the winding by setting a wire groove and a limit groove, making the wire output structure of the winding compact, but the use cost of this device is high and the assembly efficiency of the whole machine is low. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned technologies, the utility model proposes a novel low-cost permanent magnet synchronous motor outgoing line structure in which an outgoing line row and an insulating frame are matched.

[0006] The utility model aims at solving the above technical problems and adopts the following technical solutions: a novel low-cost permanent magnet synchronous motor outlet line structure in which an outlet line row cooperates with an insulating frame, comprising a plurality of insulating frames, the insulating frames being provided with windings, a stator core, a GND terminal block and an outlet line row, the GND terminal block being provided with a buckle, the insulating frame being provided with a slot, and the buckle on the GND terminal block being fixed to the slot of the insulating frame.

[0007] Furthermore, a plurality of groups of cylindrical bosses are arranged on the insulating frame, a plurality of groups of reserved circular holes are arranged on the outlet line row, and the cylindrical bosses on the insulating frame are inserted into the reserved circular holes of the outlet line row.

[0008] Furthermore, the insulating frame and the outlet line bar are fixed by hot-melt welding.

[0009] Furthermore, multiple groups of insulating frames are combined and arranged into a cylinder.

[0010] Furthermore, the number of the windings and stator cores is the same as that of the insulating frame.

[0011] Furthermore, the GND terminal blocks are provided with two groups, and the GND terminal blocks are provided in a mirror image.

[0012] Compared with the prior art, the utility model has the following beneficial effects: compared with the traditional wiring structure using a wiring board assembly, the wiring structure in which the wiring row and the insulating frame cooperate with each other reduces the expensive mold cost and the production cost; the wiring structure in which the wiring row and the insulating frame cooperate with each other reduces the process complexity and improves the efficiency of the whole machine assembly; at the same time, it reduces the connection points between the components, improves the stability and reliability of the overall product, reduces the risk of failure, reduces the number of components and the connection points, helps to improve the consistency of the product, and reduces the manufacturing deviation caused by the difference in components. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 for Figure 1 Structural cross-section view in the AA direction.

[0015] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0016] Figure 4 This is a schematic diagram of the installation position of the GND terminal block and the outlet row of the utility model.

[0017] Figure 5 This is a schematic diagram of the installation position of the insulation frame and the stator core of the utility model.

[0018] Figure numerals: 1-outgoing line row; 2-insulating frame; 3-winding; 4-stator core; 5-GND terminal block. DETAILED DESCRIPTION

[0019] refer to Figures 1 to 5 The structure of a new type of low-cost permanent magnet synchronous motor with a lead-out line row and an insulating frame is shown, comprising a plurality of insulating frames 2, windings 3 and stator cores 4 are arranged on the insulating frames 2, and a lead-out line row 1 is arranged at the upper end of the insulating frames 2.

[0020] The utility model comprises a plurality of groups of insulating skeletons 2, which are arranged in a circle and are set in a circle. The upper ends of the insulating skeletons 2 are provided with windings 3 and stator cores 4. The number of windings 3 and stator cores 4 is the same as that of the insulating skeletons 2. When installing the windings 3, ensure that a proper gap is maintained between adjacent windings 3 and insulating skeletons 2 to prevent short circuits between windings 3 or between windings 3 and insulating skeletons 2, and also help cooling and heat distribution. Insulating materials are used at the connection points between the stator cores 4 and the insulating skeletons 2 to prevent electrical insulation failures and ensure the safe operation of the equipment, insulating sheets, insulating pads, etc., and the upper ends of the insulating skeletons 2 are provided with outlet rows 1 and two groups of GND wiring boards 5. The two groups of GND wiring boards 5 are mirror-set on the insulating skeletons 2, and multiple groups of buckles are provided on the GND wiring boards 5. Multiple groups of slots are provided in the insulating skeletons 2. The GND wiring boards 5 are installed on the insulating skeletons 2, and the GND wiring boards 5 are connected to the insulating skeletons 2. The buckle on the board 5 is locked in the slot of the insulating frame 2. When removing it, you need to press the GND terminal board 5, and the GND terminal board 5 drives the buckle to pop out from the slot on the insulating frame 2, completing the fixation and removal of the insulating frame 2 and the GND terminal board 5, ensuring the stability of the insulating frame 2 and the GND terminal board 5. Before installation, make sure that the outer surface of the GND terminal board 5 and the connection points on the insulating frame 2 are well electrically insulated to prevent electrical short circuits with the insulating frame or other parts. At the same time, the GND terminal board 5 needs to be firmly embedded in the insulating frame 2 to ensure that the mechanical connection is tight, which helps to maintain the relative position of the internal components of the device and prevent the terminal board from loosening due to vibration or other mechanical stress. When selecting the materials of the GND terminal board 5 and the insulating frame 2, make sure that they are physically and chemically compatible with each other. Consider environmental conditions, such as temperature and humidity, and select materials to prevent corrosion or deterioration.

[0021] As an optional implementation method, ensure that the connection method between the GND terminal block 5 and the insulating frame 2 is appropriate, using bolts, mortise and tenon, clamping devices, etc. The choice of connection method should take into account the equipment's use environment, vibration conditions, and maintenance requirements. The process of designing and implementing the GND terminal block 5 should comply with relevant electrical safety standards and equipment manufacturing specifications to ensure the safety and compliance of the equipment. Regularly check the connection between the GND terminal block 5 and the insulating frame 2 to ensure that they are in good working condition.

[0022] An outlet row 1 is provided on the insulating frame 2, and a plurality of groups of reserved circular holes are provided on the upper end of the outlet row 1. A plurality of groups of cylindrical bosses are provided on the insulating frame 2. The length of the cylindrical bosses on the insulating frame 2 is greater than the length of the reserved circular holes on the upper end of the outlet row 1. The outlet row 1 is installed on the insulating frame 2 according to the wiring schematic diagram, and the cylindrical bosses on the insulating frame 2 are inserted into the reserved circular holes of the outlet row 1, and a section is extended for connection with the line to complete the positioning of the outlet row 1 and the insulating frame 2. Subsequently, the outlet row 1 and the insulating frame 2 are fixed by a hot-melt welding process to ensure the control requirements of the outlet position in the whole machine. Accurate control of the outlet position can ensure that the wires, cables or other electrical connection components in the electrical equipment are in the desired position when designed. , helps to maintain reliable transmission of electrical signals and prevent poor electrical performance. The accuracy of the outlet position can prevent short circuits between electrical components and avoid equipment failure. In some cases, incorrect outlet position may cause equipment failure or electrical system interruption, while reducing costs and ensuring the stability of the structure. A stable outlet structure helps prevent loosening or breaking of the line due to vibration, impact or other external forces, which helps to improve the overall reliability of the motor, reduce the failure rate, and reduce the possibility of loosening and wear of the line connection part, thereby reducing the need for maintenance, which can reduce maintenance costs and extend the service life of the motor. The good design of the outlet structure helps maintain ventilation and heat dissipation inside the motor. This is very important to prevent the motor from overheating and improve its working efficiency.

[0023] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A new type of low-cost permanent magnet synchronous motor outlet line structure in which an outlet line row and an insulating frame cooperate, comprising a plurality of sets of insulating frames (2), characterized in that: The insulating frame (2) is provided with a winding (3), a stator core (4), a GND wiring board (5) and an output line row (1); a buckle is provided in the GND wiring board (5); a slot is provided in the insulating frame (2); and the buckle on the GND wiring board (5) is fixed to the slot of the insulating frame (2).

2. According to claim 1, a new type of low-cost permanent magnet synchronous motor outlet line structure with outlet line bar and insulation frame, characterized in that: The insulating frame (2) is provided with a plurality of groups of cylindrical bosses, the outlet line row (1) is provided with a plurality of groups of reserved circular holes, and the cylindrical bosses on the insulating frame (2) are inserted into the reserved circular holes of the outlet line row (1).

3. According to claim 2, a new type of low-cost permanent magnet synchronous motor outlet line structure with outlet line bar and insulation frame, characterized in that: The insulating frame (2) and the outlet line row (1) are fixed by hot-melt welding.

4. According to claim 3, a new type of low-cost permanent magnet synchronous motor outlet line structure with outlet line bar and insulation frame is characterized in that: A plurality of groups of insulating frames (2) are combined and arranged into a cylinder.

5. According to claim 3, a new type of low-cost permanent magnet synchronous motor outlet line structure with outlet line bar and insulation frame is characterized in that: The number of the windings (3) and stator cores (4) is the same as that of the insulating frame (2).

6. According to claim 3, a new type of low-cost permanent magnet synchronous motor outlet line structure with outlet line bar and insulation frame is characterized in that: The GND wiring boards (5) are provided in two groups, and the GND wiring boards (5) are provided in a mirror-image manner.

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