電工鋼硅鋼片Intro of iron core of automobile driving motor。At present, the motor technology of high-speed punching of stator and rotor iron core at home and abroad has developed rapidly. With the development of stamping equipment, new equipment with high quality, high efficiency and high precision has been provided for the production of motor punching pieces of high-speed punching of stator and rotor iron core at home and abroad, which has brought the motor punching process technology. Therefore, the design technology of new technology and equipment suitable for it has become a new research topic. The simultaneous separation of stator punching groove and stator punching groove of motor high-speed punching stator rotor iron core the simultaneous cutting of air gap between rotor punching and rotor punching groove is a new technological scheme applied to high-speed punching machine. This scheme has been widely used in foreign countries and has just begun research and application in domestic motor industry. Therefore, some discussions are made to realize the design technology of this technology according to the required technological equipment.The influence of motor high-speed punching of stator and rotor iron core: the influence of motor punching process technology of motor high-speed punching of stator and rotor iron core in new product development the traditional process of motor punching in our country is two categories: double punching and single punching, which are analyzed as follows:1) the process scheme of double punching groove: this scheme has good groove shape and uniformity, few processes and few tooling, but the tooling is complex and requires high precision, good equipment conditions, long tooling manufacturing cycle and Cheng Bengao, which is only suitable for mass production and is not conducive to new product development and small batch trial production.2) single-type punching process scheme: this scheme has poor groove shape, many processes, many tooling, many equipments, simple tooling, unstable quality, long production cycle and Cheng Bengao, and is only suitable for medium and small batch production.Requirements for high-speed punching of stator and rotor iron core of motor: 1. Positioning accuracy requirements. In this technological scheme, the two composite processes of punching groove separation and punching groove cutting air gap require the same positioning Benchmark, ensuring that the concentricity of the groove shape of the stator and rotor, the outer circular dove tail groove and shaft hole is not more than 0.02mm, the positioning of the center hole meets the technical requirements of concentricity, and the joint positioning of the small side hole and the center hole meets the requirements of circumferential orientation. 2. Precision requirements of composite process. Punching and groove separation compound process: This process has Groove-shaped convex mold and incision convex mold to complete the progressive blanking process. This process first punches and then cuts to separate the fixed and rotor punching pieces. The Two convex molds act synchronously on the same center track, and the central included angle between the two convex molds is one and a half times the central included angle of the groove. This process equipment is applied to high-speed punching machines, the groove-shaped indexing accuracy is guaranteed by the CAM stepping mechanism on the equipment；Electric vehicle is an economical and clean green vehicle based on electric drive,Environment and other aspects have ＊ competitiveness, and can conveniently use modern control technology to realize its electromechanical integration, with broad development prospects.The motor drive system of the iron core of the automobile drive motor is the power source of the electric vehicle, and is the main body and internal basis for determining various performance indexes of the automobile operation. At present, electric vehicle motors mainly include DC motors, induction motors, permanent magnet brushless motors and switched reluctance motors.Automobile drive motor iron core permanent magnet brushless motor can be divided into two categories: one is permanent magnet synchronous motor with sine wave current,The other is the BLDC motor with rectangular pulse wave current.Two kinds of motors, the rotor is magnet, the motor rotor does not need brush and excitation winding, through stator winding commutation to generate rotating torque. Because the rotor has no excitation winding, no copper consumption, small magnetic flux and very small iron consumption at low load, therefore, the permanent magnet brushless motor has a high "Power/mass" ratio and can run at high speed. At the same time, it is easy to cool down because there is no abrasion of the rotor and the stator winding is the main heat source.The characteristics of the iron core of the automobile driving motor； The permanent magnet brushless motor of the iron core of the automobile driving motor has high reliability and high output power. Compared with other motors with the same rotating speed, it has the characteristics of small volume, light weight, easy maintenance, high efficiency, high power factor, etc. The rotor has small electromagnetic time constant and good dynamic characteristics of the motor. Through adjustment and conduction angle, constant power operation can be realized, and the efficiency of the motor can also be optimized by optimizing control angle, thus obtaining wider constant power operation area and higher efficiency.Overview of motor high speed punching stator and rotor iron core

電工鋼硅鋼片本文件適用于寶山鋼鐵股份有限公司生產(chǎn)的、江蘇南通同城用于頻率在 100Hz-10000Hz 磁路結(jié)構(gòu)的、江蘇南通同城以終退火狀態(tài)交貨的全工藝冷軋無取向電工鋼帶產(chǎn)品(以下簡稱產(chǎn)品)，比總損耗(鐵損)specific total loss (iron loss)比總損耗是指在磁極化波形保持正弦，其峰值和頻率為特定值時，單位質(zhì)量材料所消耗的總功率，比總損耗用符號 P(Jm/f)表示，單位為 W/kg。例：P1.0/400表示在 磁極化強度為 1.0T、江蘇南通同城頻率為 400Hz 時的比總損耗。Q/BQB 481－202123.2 磁極化強度 magnetic polarization磁極化強度是指試樣受交變磁化時，特定磁場強度峰值的磁極化強度峰值，其符號為J(H)，單位為 T(特斯拉)。例：J5000表示對應于磁場強度峰值為 5000A/m 下的磁極化強度峰值。4 分類本文件的材料的等級是根據(jù)磁極化強度在1.0T、江蘇南通同城頻率在400Hz下的 比總損耗值P1.0/400、江蘇南通同城材料公稱厚度進行牌號分類，并按產(chǎn)品特性細分為普通型、江蘇南通同城型、江蘇南通同城高強度型、江蘇南通同城高磁感型和高強度型五類。示例 1：B20AV1300 表示公稱厚度為 0.20mm 的普通型無取向電工鋼， 比總損耗P1.0/400為13W/kg；示例 2：B27AHV1400 表示公稱厚度為 0.27mm 的型無取向電工鋼， 比總損耗P1.0/400為14W/kg；示例 3：B30APV1500 表示公稱厚度為 0.30mm 的高磁感型無取向電工鋼， 比總損耗P1.0/400為15W/kg；示例 4：B25AHV1300M表示公稱厚度為0.25mm的高強度型無取向電工鋼， 比總損耗P1.0/400為13W/kg；示例 5：B35AHS500 表示公稱厚度為 0.35mm 的高強度型無取向電工鋼，小屈服強度500MPa。1 絕緣涂層狀態(tài)產(chǎn)品通常以兩面涂敷絕緣涂層狀態(tài)交貨，涂層種類見表 2。絕緣涂層應可耐受絕緣漆、江蘇南通同城變壓器油、江蘇南通同城機械油等介質(zhì)的侵蝕。本文件規(guī)定的絕緣涂層與國內(nèi)外相關(guān)技術(shù)規(guī)范規(guī)定絕緣涂層的近似對照可參見附錄 A(資料性附錄)，絕緣涂層的特性見附錄 B(資料性附錄)。絕緣涂層的厚度、江蘇南通同城自粘接涂層的剝離強度等技術(shù)要求如有特殊要求應在訂貨時協(xié)商，并在合同中注明。涂層絕緣電阻涂層絕緣電阻分為表面絕緣電阻和層間電阻，表面絕緣電阻單位為Ω·cm2/面，層間電阻單位為Ω·cm2/片，理論上，層間電阻是表面絕緣電阻的 2 倍。根據(jù)需方要求，經(jīng)供需雙方協(xié)商，可進行涂層絕緣電阻的檢測，并在合同中注明涂層表面絕緣電阻或?qū)娱g電阻的小值。