发明内容 Contents of the invention

本发明的目的是提供一种能克服上述缺陷，发电机气隙内的磁场由永磁钢和电励磁线圈共同提供，磁场可以调节，输出电压稳定，生产方法简单的永磁与凸极电磁复合励磁转子生产方法，其技术内容为： The purpose of the present invention is to provide a permanent magnet and salient pole electromagnetic composite that can overcome the above defects, the magnetic field in the air gap of the generator is provided by the permanent magnet steel and the electric excitation coil, the magnetic field can be adjusted, the output voltage is stable, and the production method is simple. The production method of the excitation rotor, the technical content of which is:

永磁与凸极电磁复合励磁转子生产方法，包括永磁转子生产、电励磁转子生产、转子装配，其特征在于： A method for producing a permanent magnet and salient pole electromagnetic composite excitation rotor, including permanent magnet rotor production, electric excitation rotor production, and rotor assembly, characterized in that:

第一步，永磁转子生产：冲剪圆环形转子冲片，转子冲片上均布有偶数个贯穿转子冲片厚度的径向矩形槽，径向矩形槽内端与圆环形转子冲片的内孔连通，径向矩形槽的外端与圆环形转子冲片的外圆有1.5mm的不连通部分，转子冲片外圆上开有半圆形坡口，将转子冲片按毛刺一顺的方式叠压，采用氩弧焊焊接叠压后转子冲片的半圆形坡口，形成转子铁芯，把焊接后的转子铁芯安放在压铸机的压铸模具中，将熔化的铝浇入已安装压铸模具的压铸机入料口，压铸转子的隔磁衬套，隔磁衬套中间为通孔，转子铁芯两边的隔磁衬套部分均为凸台结构，凸台厚度为2mm，凸台外圆直径比圆环形转子铁芯的内孔直径大4mm，瓦片磁钢按凸面为N极、S极间隔排列的方式通过极靴由螺钉固定在转子铁芯的外圆上，矩形磁钢按N极朝向瓦片磁钢凹面为S极、S极朝向相邻的另一片瓦片磁钢凹面为N极的方式依次布置在转子铁芯径向矩形槽内，形成永磁转子； The first step, permanent magnet rotor production: punching and shearing the circular rotor punching sheet, the rotor punching sheet is evenly distributed with an even number of radial rectangular slots through the thickness of the rotor punching sheet, the inner end of the radial rectangular slot and the ring-shaped rotor punching sheet There is a 1.5mm disconnected part between the outer end of the radial rectangular groove and the outer circle of the annular rotor punch. There is a semicircular bevel on the outer circle of the rotor punch. One-shun method of stacking, using argon arc welding to weld the semi-circular groove of the laminated rotor sheet to form a rotor core, place the welded rotor core in the die-casting mold of the die-casting machine, and melt the molten aluminum Pour into the feed port of the die-casting machine with the die-casting mold installed, the magnetic isolation bushing of the die-casting rotor, the middle of the magnetic isolation bush is a through hole, and the magnetic isolation bushes on both sides of the rotor core are boss structures, and the thickness of the boss 2mm, the diameter of the outer circle of the boss is 4mm larger than the diameter of the inner hole of the circular rotor core, and the tile magnetic steel is fixed on the outer circle of the rotor core by screws through pole shoes in such a way that the convex surface is N pole and S pole is arranged at intervals On the top, the rectangular magnets are arranged in the radial rectangular groove of the rotor core in such a way that the N pole faces the concave surface of the tile magnet, and the S pole is the S pole, and the S pole faces the concave surface of the adjacent tile magnet, which is the N pole. magnetic rotor;

第二步，电励磁转子生产：转子冲片上均布有偶数个T字型凸极，所有T字型凸极的顶端在同一圆周，每个T字型凸极中心线与T字型凸极顶端相交处开有半圆形坡口，将转子冲片按毛刺一顺的方式叠压，采用氩弧焊焊接叠压后转子冲片半圆形坡口，形成转子铁芯，将裁剪好的绝缘纸纵向折成U字型插入转子铁芯上两个相邻的T字型凸极形成的梨形槽内，电励磁线圈缠绕在T字型凸极上，按通入直流电后T字型凸极的凸面产生的极性为N极、S极相间隔的规律依次绕线，每个T字型凸极上的匝数应相等，形成凸极式电励磁转子； The second step is the production of the electric excitation rotor: there are an even number of T-shaped salient poles evenly distributed on the rotor punch, and the tops of all the T-shaped salient poles are on the same circumference. There is a semi-circular bevel at the intersection of the tops, and the rotor punches are laminated in a burr-like manner, and the semi-circular grooves of the rotor punches are welded and laminated by argon arc welding to form a rotor core, and the cut The insulating paper is folded longitudinally into a U shape and inserted into the pear-shaped slot formed by two adjacent T-shaped salient poles on the rotor core. The electric excitation coil is wound on the T-shaped salient poles, and the T-shaped The polarity generated by the convex surface of the salient pole is that the N pole and the S pole are alternately wound sequentially, and the number of turns on each T-shaped salient pole should be equal to form a salient pole type electric excitation rotor;

第三步，转子装配：将永磁转子压装在轴上，再把电励磁转子压装在同一条轴上，永磁转子与电励磁转子之间加装厚度为2mm～3mm的垫片，永磁转子每个磁极的轴向中心线与电励磁转子每个磁极的轴向中心线在同一条直线上，再用车床车转子外圆至规定尺寸，完成永磁与凸极电磁复合励磁转子的生产。 The third step, rotor assembly: press-fit the permanent magnet rotor on the shaft, and then press-fit the electric excitation rotor on the same shaft, and install a gasket with a thickness of 2mm to 3mm between the permanent magnet rotor and the electric excitation rotor. The axial centerline of each magnetic pole of the permanent magnet rotor and the axial centerline of each magnetic pole of the electric excitation rotor are on the same straight line, and then the outer circle of the rotor is turned to the specified size by a lathe to complete the permanent magnet and salient pole electromagnetic composite excitation rotor production.

本发明与现有技术相比，瓦片磁钢固定在转子铁芯的外圆上、矩形磁钢安装在转子铁芯的径向槽内，磁场强度大，电励磁转子为凸极结构，产生的磁场直接面对气隙、漏磁少，发电机气隙内的磁场由永磁钢和电励磁线圈共同提供，通过调节电励磁线圈通电电流的大小和方向，使永磁场和电磁场合成后的磁场可以调节，发电机输出电压稳定，保证汽车电器设备的安全性和使用可靠性。 Compared with the prior art, the present invention has tile magnets fixed on the outer circle of the rotor iron core, rectangular magnets installed in the radial grooves of the rotor iron core, the magnetic field strength is large, and the electric excitation rotor is a salient pole structure, resulting in The magnetic field directly faces the air gap and has less magnetic flux leakage. The magnetic field in the air gap of the generator is provided by the permanent magnet steel and the electric excitation coil. By adjusting the magnitude and direction of the electric current of the electric excitation coil, the permanent magnetic field and the electromagnetic field are combined. The magnetic field can be adjusted, and the output voltage of the generator is stable, ensuring the safety and reliability of automotive electrical equipment.