EMB motor wire outlet structure

Abstract

The utility model discloses an EMB motor wire outlet structure, and specifically relates to the EMB motor wire outlet structure technology field, the EMB motor wire outlet structure comprises a wire outlet bar group, a winding group and a plurality of stator assemblies, the inner side of the stator assembly is provided with the winding group, the stator assemblies are arranged at the lower end of the wire outlet bar assembly, the wire outlet bar assembly comprises a support pedestal and a three-phase wiring board, the three-phase wiring boards are arranged in the supporting base, a plurality of groups of wire end grooves are formed in the outer sides of the three-phase wiring boards, winding ends are arranged at the upper ends of the winding sets, and the positions of the wire end grooves correspond to the positions of the winding ends. In actual production and manufacturing, a complex U-shaped clamp wiring mode is replaced by three groups of three-phase wiring boards, so that the procedures of 90-degree right-angle bending, 180-degree U-shaped bending and the like are remarkably reduced, the production efficiency is improved, and the processing time and the material cost are reduced; moreover, the introduction of the insertion sheet type structure enables the overall height of the outgoing line assembly to be reduced, and the utilization of the internal space of the motor is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to EMB motor wire-out structure technical field, especially EMB motor wire-out structure. BACKGROUND

[0002] At present, the overall size of EMB motor is required to be increasingly smaller in vehicle design, smaller motor parts can not only save the space occupied on the vehicle, but also shorten the torque transmission distance, and the wire-out structure is a key factor affecting the overall size of the motor.

[0003] Most of the current motor wire-out is designed as a terminal block assembly, the copper bar and the plastic part are integrally injection molded, the motor winding lead wire is resistance welded with the U-shaped clamp head of the terminal block assembly, and the motor winding is led out from the inside to the outside through three-phase or six-phase PIN, so that the motor internal space is occupied more.

[0004] The conventional method of reducing the space size is to reduce the height of the U-shaped clamp head, but it will cause local electric density to be too high, or shortening the creepage distance will cause the risk of motor insulation voltage breakdown, so the wire-out structure seriously restricts the overall space size of the motor and affects the performance of the motor.

[0005] In actual use, the general forming process of the simple three-phase terminal block is material selection stamping, 90° right angle bending of each U-shaped clamp, 180° U-shaped bending, injection molding and other processes, and common ones are 6 clamps, 9 clamps and 12 clamps, and each clamp needs two bending, which seriously affects the production efficiency and cost, and is very unfavorable for the cost reduction of EMB motor. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide an EMB motor wire-out structure, which can effectively solve the problem that the general forming process of the three-phase terminal block is material selection stamping, common ones are 6 clamps, 9 clamps and 12 clamps, and each clamp needs two bending, which seriously affects the production efficiency and cost, and is very unfavorable for the cost reduction of EMB motor.

[0007] In order to achieve the above purpose, the technical scheme adopted by the utility model is:

[0008] An EMB motor wire-out structure, comprising a wire-out cable group, a winding group and a stator assembly, the winding group is arranged on the inner side of the stator assembly, the stator assembly is multiple groups, and the stator assembly is arranged at the lower end of the wire-out cable assembly;

[0009] The wire-out cable assembly comprises a supporting base and a three-phase terminal block, the three-phase terminal block is three groups, the three-phase terminal block is inserted and installed in the supporting base, a plurality of wire end grooves are formed on the outer side of the three-phase terminal block, and a winding end is arranged at the upper end of the winding group.

[0010] Preferably, the outer side of the three terminal blocks is coated with an insulating coating.

[0011] Preferably, the stator assembly includes a stator core, with insulating frames installed at both the upper and lower ends of the stator core, and a winding assembly installed between the upper and lower insulating frames.

[0012] Preferably, the stator core has a mating interface fixed on the left side and a mating groove on the right side, and multiple sets of stator cores are positioned and mated by the mating interface and the mating groove.

[0013] Preferably, the insulating frame has a slot in the middle, and the insulating frame is fixed to the upper and lower ends of the stator core through the slot.

[0014] Preferably, the lower end of the support base is fixed with multiple sets of fixed feet, the fixed feet corresponding to the outer side of the insulating frame, and the fixed feet are fixed after installation with the insulating frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The wiring structure of this motor replaces the complex U-shaped clamp wiring method with three sets of three-phase terminal blocks, which significantly reduces the processes such as 90° right-angle bending and 180° U-shaped bending, which not only improves production efficiency, but also reduces processing time and material costs.

[0017] 2. The introduction of this insert-type structure reduces the overall height of the outgoing wire assembly, optimizes the utilization of the internal space of the motor, thereby reducing the overall size of the motor and making it more suitable for the miniaturization needs of modern vehicles. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;

[0020] Figure 3 This is a top view of the disassembly structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the stator assembly and winding group structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the stator assembly docking structure of this utility model.

[0023] In the diagram: 1. Cable tray assembly; 11. Support base; 111. Fixed support foot; 12. Three-phase terminal block; 121. Insulating coating; 122. Wire end slot; 2. Winding assembly; 21. Winding end; 3. Stator assembly; 31. Stator core; 311. Connecting interface; 312. Connecting slot; 32. Insulating frame; 321. Slot opening. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 5 As shown, an EMB motor cable outlet structure includes a cable outlet assembly, a winding assembly 2, and a stator assembly 3. The winding assembly 2 is arranged inside the stator assembly 3. There are multiple stator assemblies 3. The stator assembly 3 is located at the lower end of the cable outlet assembly 1. The cable outlet assembly 1 includes a support base 11 and a three-phase terminal block 12. There are three sets of three-phase terminal blocks 12. The three-phase terminal blocks 12 are plugged into the support base 11. Multiple sets of wire end slots 122 are opened on the outer side of the three-phase terminal blocks 12. A winding end 21 is arranged at the upper end of the winding assembly 2. The position of the wire end slot 122 corresponds to the position of the winding end 21.

[0026] During use, the outgoing cable group serves as the electrical connection channel between the motor windings and the external circuit. The winding group 2 generates an electromagnetic field through the coil, which works with the stator to complete the electromagnetic energy conversion of the motor. The stator assembly 3 provides mechanical support and magnetic flux path for the winding group 2. The support base 11 provides mechanical support for the outgoing cable group 1, and its function is to fix the three-phase terminal block 12. The three sets of three-phase terminal blocks 12 installed inside the support base 11 provide fixing and connection points for the winding leads. The wire end slot 122 guides the winding ends 21 of the windings to be inserted into the terminal block.

[0027] The three-phase terminal block 12 is coated with an insulating coating 121 on its outer side. The main function of the insulating coating 121 is to prevent the exposed metal parts on the outside of the terminal block from making electrical contact with other conductive parts or the external environment, thereby avoiding problems such as short circuits and leakage, and improving the overall electrical safety of the motor.

[0028] The stator assembly 3 includes a stator core 31, with an insulating frame 32 installed at both the upper and lower ends of the stator core 31. A winding assembly 2 is installed between the upper and lower insulating frames 32. The function of the stator core 31 is to form the magnetic flux path of the motor, improve the electromagnetic performance of the motor by concentrating the magnetic field and reducing magnetic reluctance loss, and at the same time provide mechanical support for the winding assembly 2. The insulating frame 32 prevents the winding from directly contacting the core, which could lead to a short circuit or leakage. The winding assembly 2 generates an electromagnetic field by energizing the coil.

[0029] The stator core 31 has a mating interface 311 fixed on the left side and a mating groove 312 on the right side. Multiple sets of stator cores 31 are positioned and mated by the mating interface 311 and the mating groove 312. The mating interface 311 and the mating groove 312 provide a stable insertion point for the connection of multiple sets of stator cores 31, ensuring that the cores can be accurately positioned during assembly and avoiding the impact of misalignment on the performance and stability of the motor.

[0030] The insulating frame 32 has a slot 321 in the middle. The insulating frame 32 is fixed to the upper and lower ends of the stator core 31 through the slot 321. The function of the slot 321 is to achieve precise fixation between the insulating frame 32 and the stator core 31. Through the snap-fit ​​method of the slot 321, the insulating frame 32 is firmly installed at the upper and lower ends of the stator core 31, avoiding loosening or displacement due to vibration during operation.

[0031] Multiple sets of fixed feet 111 are fixed at the lower end of the support base 11. The fixed feet 111 correspond to the outer side of the insulating frame 32. After the fixed feet 111 are installed with the insulating frame 32, they are fixed. The function of the fixed feet 111 is to connect and fix them through the corresponding positions on the outer side of the insulating frame 32, so as to ensure that the connection between the insulating frame 32 and the support base 11 is firm.

[0032] The specific implementation method of this embodiment is as follows: When manufacturing the new low-cost EMB motor output structure, only three sets of three-phase terminal blocks 12 need to be produced separately, and they are fixed inside the support base 11 by plug-in installation. Traditional U-shaped clamp terminal blocks require multiple bends, including 90° right-angle bends and 180° U-shaped bends, while the three-phase terminal blocks 12 of this structure only need to be bent at key positions with simple right-angle bends, which greatly reduces the bending process and avoids tedious multiple processing operations;

[0033] This design simplifies the production process of the terminal block, requiring only stamping and a small amount of bending before assembly. Compared with traditional processes, it not only improves production efficiency but also reduces the frequency of use of machinery and processing time, thereby significantly reducing manufacturing costs. Furthermore, the modular design of the three-phase terminal block 12 and the standardized production specifications further simplify the process, facilitating large-scale production and meeting the demands of modern industry for efficient and low-cost production.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An EMB motor cable outlet structure, comprising an outlet cable assembly, a winding assembly (2), and a stator assembly (3), wherein the winding assembly (2) is disposed inside the stator assembly (3), characterized in that: The stator assembly (3) consists of multiple sets, and the stator assembly (3) is located at the lower end of the outgoing line assembly (1); The cable outlet assembly (1) includes a support base (11) and a three-phase connector (12). The three-phase connector (12) consists of three sets. The three-phase connector (12) is inserted and installed inside the support base (11). Multiple sets of wire end slots (122) are opened on the outer side of the three-phase connector (12). The upper end of the winding group (2) is provided with a winding end (21). The position of the wire end slot (122) corresponds to the position of the winding end (21).

2. The EMB motor output cable structure according to claim 1, characterized in that: The outer side of the three terminal blocks (12) is coated with an insulating coating (121).

3. The EMB motor output cable structure according to claim 1, characterized in that: The stator assembly (3) includes a stator core (31), and an insulating frame (32) is installed at both the upper and lower ends of the stator core (31). A winding assembly (2) is installed in the middle of the insulating frame (32) at the upper and lower ends.

4. The EMB motor output cable structure according to claim 3, characterized in that: The stator core (31) has a mating interface (311) fixed on its left side and a mating groove (312) opened on its right side. Multiple sets of stator cores (31) are positioned and mated by the mating interface (311) and the mating groove (312).

5. The EMB motor output cable structure according to claim 3, characterized in that: The insulating frame (32) has a slot (321) in the middle, and the insulating frame (32) is fixed to the upper and lower ends of the stator core (31) through the slot (321).

6. The EMB motor output cable structure according to claim 3, characterized in that: The lower end of the support base (11) is fixed with multiple sets of fixed feet (111). The fixed feet (111) correspond to the outer side of the insulating frame (32). The fixed feet (111) are fixed after installation with the insulating frame (32).

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