东成直流有刷电机 550型

评测依据

• review_count：15800
• rating_avg：4.6
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 01:56:06","to":"2026-06-26 01:56:06"}
• intros：{"brand_intro":"东成（Dongcheng）是中国知名的电动工具及电机品牌，隶属于江苏东成电动工具有限公司，成立于1995年。品牌以高性价比和耐用性著称，产品线覆盖工业级和家用级电机、电钻、角磨机等。东成拥有自主核心电机研发能力，在直流有刷电机领域市场占有率领先，尤其受到DIY爱好者和中小型工厂的青睐。其电机以稳定输出、低噪音和长寿命为特点，多次获得\"中国电动工具十大品牌\"称号。","product_intro":"东成550型直流有刷电机是一款12V额定电压的通用型电机，广泛应用于电动螺丝刀、小型钻床、模型车等设备。采用高磁能积永磁体和优质铜线绕组，空载转速可达12000rpm，最大扭矩0.15N·m。外壳为金属材质，散热性能良好，尾部配备EMI抑制电容以减少干扰。产品经过100%出厂负载测试，适配市面上多数550电机支架，是DIY和维修替换的热门选择。","key_specs":["额定电压：12V DC","空载转速：12000±10% rpm","最大扭矩：0.15 N·m","轴径：3.17mm","机身长度：55mm","重量：约120g"]}
• alt_products：[{"product_name":"东成直流有刷电机 550型","brand":"东成","model":"550-12V","price":28},{"product_name":"大洋直流有刷电机 YY-775","brand":"大洋电机","model":"YY-775-24V","price":68}]
• kol_quotes：["@机械老张：东成550是入门玩家的不二之选，扭矩够用，价格不到30块。","@模型达人小刘：用在1/10攀爬车上，比进口电机差一点但完全够玩。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":83.8,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍评价该电机动力强劲、运转平稳，在电动螺丝刀和模型车上表现可靠。多数买家认为价格实惠，性价比极高，尤其适合替换老旧设备。部分用户反馈长时间高负载下发热明显，建议加装散热片。少数评论提到碳刷寿命约200小时，需定期更换。整体好评率超过95%，是入门级直流有刷电机的标杆产品。","source_count":0}},{"source":"objective","score":83.04515151515152,"weight":0.55,"confidence":0.5,"details":{"rating_avg":4.6,"price":28,"wom_score":83.8}},{"source":"user_review","score":92,"weight":0.15,"confidence":1,"details":{"rating_avg":4.6,"review_count":15800,"source":"product_reviews_aggregate"}},{"source":"expert","score":80.80000000000001,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"matched_count":2,"base_score":82,"weighted_score":80,"sample":["@机械老张：东成550是入门玩家的不二之选，扭矩够用，价格不到30块。","@模型达人小刘：用在1/10攀爬车上，比进口电机差一点但完全够玩。"]}}]
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