The utility model discloses a heat protector, which contains a shell, a double metal piece, a static contact, a bottom plate, a connection seat one and a connection seat two. An insulating paper is arranged between the floor and the outer shell. One end of the double metal piece is set in the shell through a rivet, the other end of the double gold track piece has a touch point, and the other end of the double gold crawler is touched. The point is close to the static contact point set on the floor. The connection seat is connected with the outer shell. The shell and floor are set in the insulation cover and the bridge type electric heating sheet. The floor is divided into a split structure. The floor includes the left plate and the right plate, the left plate and the right plate have space between them. The connection seat two is connected to the left plate of the bottom plate, and the static contact is set. On the right plate of the floor, the two ends of the bridge type electric heating sheet are respectively set on the left plate and the right plate of the floor. The movable contact is composed of the block structure of the bottom and the contact of the truncated square cone. The static contact is a block structure with the V groove in the center, and the V groove is matched with the contact of the truncated square cone.
【技术实现步骤摘要】
一种热保护器
本技术涉及一种用于电器保护的热保护器。
技术介绍
保护器广泛用于变压器、电机等家用电热器具和类似电器的温度控制和保护,它能够感受和跟随环境温度的变化,并在预设的温度点执行电路的切断,起控制和保护功能。现有一种保护器,含有外壳、双金属片、静触点、底板和接线座一和接线座二。底板与外壳之间设有绝缘纸,接线座一与底板相连,静触点设置在底板上,双金属片的一端通过铆钉设置在外壳内,双金履片的另一端设有动触点,双金履片另一端设有的动触点抵触与设置在底板上的静触点闭合,外壳和底板设置在绝缘罩体内。工作时,当电器因发热而使温度上升至保护器的动作温度时,外壳受热并传导给双金属片,双金属片受热产生内应力而迅速动作,推开动触点离开静触点而断开电路,从而切断电器电源起到保护作用。当被保护的电器温度下降到保护器的额定复位温度值时,双金属片恢复到初始状态动、静触点闭合,电器恢复正常工作。在上述保护器中,双金履片上的热量是通过外壳传导的,因受外外壳积、导热系数和环境的影响,往往导致双金属片受热断电的动作迟缓或不一致性,从而降低了对电器的保护效果。同时,由于动触点抵触与静触点的接触为 ...
【技术保护点】
一种热保护器,含有外壳、双金属片、静触点、底板、接线座一和接线座二,底板与外壳之间设有绝缘纸,双金属片的一端通过铆钉设置在外壳内,双金履片的另一端设有动触点,双金履片另一端设有的动触点与设置在底板上的静触点闭合,接线座一与外壳相连,外壳和底板设置在绝缘罩体内,其特征在于,还有桥式电热片,所述底板为分体结构,底板包括左板和右板,左板和右板之间留有间距,所述接线座二与底板的左板相连,静触点设置在所述底板的右板上,桥式电热片的两端分别设置在所述底板的左板和右板上;所述动触点由底部的方块体结构和截头方锥体的触头构成,所述静触点为中央设有V型槽的方块体结构,该V型槽与所述截头方锥体的触头相配。
【技术特征摘要】
1.一种热保护器,含有外壳、双金属片、静触点、底板、接线座一和接线座二,底板与外壳之间设有绝缘纸,双金属片的一端通过铆钉设置在外壳内,双金履片的另一端设有动触点,双金履片另一端设有的动触点与设置在底板上的静触点闭合,接线座一与外壳相连,外壳和底板设置在绝缘罩体内,其特征在于,还有桥式电热片,所述底板为分体结构,底板包括左板和右板,左板和右板之间留有间距,所...
【专利技术属性】
技术研发人员:朱胜亮,苗荣,
申请(专利权)人:江苏怡通控制系统有限公司,
类型:新型
国别省市:江苏,32
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